0.16.0 sisudoc (src/sisudoc sisudoc spine)

- src/sisudoc (replaces src/doc_reform)
- sisudoc spine (used more)

46 files changed, 33537 insertions, 0 deletions

diff --git a/src/sisudoc/COPYRIGHT b/src/sisudoc/COPYRIGHT
new file mode 100644
index 0000000..37ec057
--- /dev/null
+++ b/src/sisudoc/COPYRIGHT
@@ -0,0 +1,166 @@
+- Name: spine - SiSU Spine, Doc Reform
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah
+
+  - code under src/* src/sisudoc/*
+    - License: AGPL 3 or later:
+
+      Spine, Doc Reform (SiSU), a framework for document structuring, publishing and
+      search
+
+      Copyright (C) Ralph Amissah
+
+      This program is free software: you can redistribute it and/or modify it
+      under the terms of the GNU AFERO General Public License as published by
+      the Free Software Foundation, either version 3 of the License, or (at your
+      option) any later version.
+
+      This program is distributed in the hope that it will be useful, but
+      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+      or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+      for more details.
+
+      You should have received a copy of the GNU General Public License along
+      with this program. If not, see [https://www.gnu.org/licenses/].
+
+      If you have Internet connection, the latest version of the AGPL should be
+      available at these locations:
+      [https://www.fsf.org/licensing/licenses/agpl.html]
+      [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine, Doc Reform (related to SiSU) uses standard:
+    - docReform markup syntax (based on SiSU markup)
+      - standard SiSU markup syntax with modified headers and minor
+        modifications
+    - docReform object numbering (based on SiSU object citation numbering)
+      - standard SiSU document object numbering
+
+  - Homepages:
+    [https://www.sisudoc.org]
+
+- Spine, Doc Reform (SiSU) markup samples
+  Individual document content Copyright (Author) [as stated in document header]
+  Individual document content License (Author) [as stated in document header]
+
+- Dependencies [check dub.json or dub.sdl]
+
+  - Name: d2sqlite3
+    - Description:
+      This is a small wrapper around SQLite for the D programming language.
+
+    - Author:
+      [Nicolas Sicard]
+      [https://github.com/dlang-community/d2sqlite3/graphs/contributors]
+
+    - Copyright: (C) 2011-2018, Nicolas Sicard
+
+    - code:
+      - License: BSL-1.0
+        Boost Software License 1.0
+        [https://www.boost.org/LICENSE_1_0.txt]
+
+    - Homepages:
+      [https://github.com/dlang-community/d2sqlite3]
+      [https://code.dlang.org/packages/d2sqlite3]
+
+    - src/ext_depends/d2sqlite3
+    - sundry/spine_search_cgi/src/ext_depends_cgi/d2sqlite3
+
+  - Name: dyaml
+    - Description:
+      D:YAML is an open source YAML parser and emitter library for the D programming language.
+
+    - Author:
+      [Ferdinand Majerech]
+
+    - Copyright: (C) 2011-2018, Ferdinand Majerech
+
+    - code:
+      - License: BSL-1.0
+        Boost Software License 1.0
+        [https://www.boost.org/LICENSE_1_0.txt]
+
+    - Homepages:
+      [https://github.com/dlang-community/D-YAML]
+      [https://code.dlang.org/packages/dyaml]
+
+    - src/ext_depends/D-YAML
+
+  - Name: imageformats
+    - Description:
+
+    - Author:
+      [Tero Hänninen]
+
+    - Copyright: (C) Tero Hänninen
+
+    - code:
+      - License: BSL-1.0
+        Boost Software License 1.0
+        [https://www.boost.org/LICENSE_1_0.txt]
+
+    - Homepages:
+      [https://github.com/lgvz/imageformats]
+      [https://code.dlang.org/packages/imageformats]
+
+    - src/ext_depends/imageformats
+
+  - Name: tinyendian (dyaml dependency)
+    - Description:
+      TinyEndian is a minimal endianness library for the D programming language.
+
+    - Author:
+      [Ferdinand Majerech]
+
+    - Copyright: (C) 2014 Ferdinand Majerech
+
+    - code:
+      - License: BSL-1.0
+        Boost Software License 1.0
+        [https://www.boost.org/LICENSE_1_0.txt]
+
+    - Homepages:
+      [https://github.com/dlang-community/tinyendian]
+      [https://code.dlang.org/packages/tinyendian]
+
+    - src/ext_depends/tinyendian
+
+- Name: cgi.d
+  - Description:
+
+  - Author:
+    [Adam D. Ruppe]
+
+  - Copyright: (C) 2008 - 2023 Adam D. Ruppe
+
+  - code: cgi.d
+    aria2c https://raw.githubusercontent.com/adamdruppe/arsd/master/cgi.d
+
+    - License: BSL-1.0
+      Boost Software License 1.0
+      [https://www.boost.org/LICENSE_1_0.txt]
+      (Check the bottom of the file for details)
+
+  - Homepages:
+    [https://github.com/adamdruppe/arsd]
+
+  - sundry/spine_search_cgi/src/ext_depends_cgi/arsd
+
+- Name: dub2nix
+  - Description:
+
+  - Author:
+    [Lionello Lunesu]
+
+  - Copyright: (C) 2019 Lionello Lunesu
+
+  - code: mkDub.nix (modified as needed)
+    - License: MIT License
+
+  - Homepages:
+    [https://github.com/lionello/dub2nix]
diff --git a/src/sisudoc/conf/compile_time_info.d b/src/sisudoc/conf/compile_time_info.d
new file mode 100644
index 0000000..e1ce86b
--- /dev/null
+++ b/src/sisudoc/conf/compile_time_info.d
@@ -0,0 +1,88 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  compile_time_info
++/
+module sisudoc.conf.compile_time_info;
+@safe:
+template CompileTimeInfo() {
+  version(Windows) {
+    pragma(msg, "[ Windows compilation ]");
+    enum os = "Windows";
+  } else version(OSX) {
+    pragma(msg, "[ Mac OS X POSIX System compilation ]");
+    enum os = "OSX";
+  } else version(linux) {
+    pragma(msg, "[ Linux POSIX System compilation ]");
+    enum os = "Linux";
+  } else version(FreeBSD) {
+    pragma(msg, "[ FreeBSD POSIX System compilation ]");
+    enum os = "FreeBSD";
+  } else version(OpenBSD) {
+    pragma(msg, "[ OpenBSD POSIX System compilation ]");
+    enum os = "OpenBSD";
+  } else version(NetBSD) {
+    pragma(msg, "[ NetBSD POSIX System compilation ]");
+    enum os = "NetBSD";
+  } else version(DragonFlyBSD) {
+    pragma(msg, "[ DragonFlyBSD POSIX System compilation ]");
+    enum os = "DragonFlyBSD";
+  } else version(POSIX) {
+    pragma(msg, "[ POSIX System compilation ]");
+    enum os = "POSIX";
+  } else {
+    static assert(0, "OS not listed");
+  }
+  version(D_LP64) {
+    enum bits = "64 bit";
+  } else {
+    enum bits = "32 bit";
+  }
+}
diff --git a/src/sisudoc/io_in/paths_source.d b/src/sisudoc/io_in/paths_source.d
new file mode 100644
index 0000000..071abff
--- /dev/null
+++ b/src/sisudoc/io_in/paths_source.d
@@ -0,0 +1,888 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  read configuration files<BR>
+  - read config files<BR>
+  meta_config_files.d
++/
+module sisudoc.io_in.paths_source;
+@safe:
+import
+  std.array,
+  std.file,
+  std.path,
+  std.regex,
+  std.stdio,
+  std.conv : to;
+import
+  sisudoc.meta.defaults,
+  sisudoc.meta.rgx_files;
+template PodManifest() {
+  mixin spineRgxFiles;
+  static auto rgx_files = RgxFiles();
+  auto PodManifest(O)(
+    O       _opt_action,
+    string  _pth=""
+  ) {
+    struct ManifestFile_ {
+      string pod_manifest_filename() {
+        return "pod.manifest";
+      }
+      string pod_manifest_path() {
+        string _manifest_path;
+        if ((isValidPath(_pth) && exists(_pth) != 0 && _pth.isDir)
+        && (exists(_pth.chainPath(pod_manifest_filename).array) != 0
+        && (_pth.chainPath(pod_manifest_filename).array).isFile)) {
+          _manifest_path = _pth;
+        } else if (_pth.match(rgx_files.src_pth_contents)
+        && exists(_pth) != 0 && _pth.isFile) {
+          _manifest_path = _pth.dirName;
+        } else if (_pth.match(rgx_files.src_pth_pod_sst_or_ssm)
+        && exists(_pth) != 0 && (_pth.isFile)) {
+          if (auto m = _pth.match(rgx_files.src_pth_pod_sst_or_ssm)) {
+            _manifest_path = m.captures["podpath"];
+          }
+        } else  {
+          if (_opt_action.vox_gt1 || _opt_action.debug_do) {
+            writeln("WARNING, src is not a pod, issue with manifest_path: ", _pth); // remove? unless can distinguish pod
+          }
+          _manifest_path = "";
+        }
+        return _manifest_path;
+      }
+      string pods_collection_root_path() {
+        return (pod_manifest_path.length > 0) ? ((chainPath(pod_manifest_path, "..")).asNormalizedPath).array.to!string : "";
+      }
+      string pod_manifest_file_with_path() {
+        string _k;
+        if  (exists(pod_manifest_path.chainPath(pod_manifest_filename).array)!=0) {
+          _k = pod_manifest_path.chainPath(pod_manifest_filename).array;
+        } else if (exists(pod_manifest_path)!=0) {
+          _k = pod_manifest_path;
+        }
+        if (exists(_k)==0) {
+          writeln("ERROR >> Processing Skipped! Manifest not found: ", _k);
+          _k = null;
+        }
+        return _k;
+      }
+    }
+    return ManifestFile_();
+  }
+}
+template PathMatters() {
+  mixin InternalMarkup;
+  mixin spineRgxFiles;
+  static auto rgx_files = RgxFiles();
+  static auto mkup = InlineMarkup();
+  auto PathMatters(O,E)(
+    O        _opt_action,
+    E        _env,
+    string   _pth,
+    string   _fns              = "",
+    char[][] _manifest_fn_list = [[]],
+  ) {
+    auto _manifested = PodManifest!()(_opt_action, _pth);
+    struct ManifestMatters_ {
+      auto env() {
+        auto _env = _env;
+        struct Env_ {
+          auto pwd() {
+            return _env["pwd"];
+          }
+          auto home() {
+            return _env["home"];
+          }
+        }
+        return Env_();
+      }
+      auto opt() {
+        struct Opt_ {
+          auto action() {
+            return _opt_action;
+          }
+        }
+        return Opt_();
+      }
+      bool src_is_pod() {
+        return (_manifested.pod_manifest_path.length > 0) ? true : false;
+      }
+      auto pod() {
+        struct Pod_ {
+          bool src_is_pod() {
+            return (_manifested.pod_manifest_path.length > 0) ? true : false;
+          }
+          string collection_root() {
+            return _manifested.pods_collection_root_path;
+          }
+          string manifest_filename() {
+            return _manifested.pod_manifest_filename;
+          }
+          string manifest_path() {
+            return _manifested.pod_manifest_path;
+          }
+          string pod_name_with_path() {
+            return _manifested.pod_manifest_path.baseName;
+          }
+          string manifest_file_with_path() {
+            return _manifested.pod_manifest_file_with_path;
+          }
+          string[] config_dr_document_make_dirs() {
+            string[] _config_dirs;
+            return _config_dirs;
+          }
+          string[] config_local_site_dirs() {
+            string[] _config_dirs;
+            return _config_dirs;
+          }
+          string[] image_dirs() {
+            string[] _image_dirs;
+            return _image_dirs;
+          }
+          auto manifest_list_of_filenames() {
+            return _manifest_fn_list;
+          }
+          string[] manifest_list_of_languages() {
+            string[] _lngs;
+            foreach (filename_; manifest_list_of_filenames) {
+              string _k = "en";
+              if (auto m = (filename_).match(rgx_files.language_code_and_filename)) {
+                _k = m.captures[1].to!string;
+              }
+              _lngs ~= _k; // all the languages from the manifest list of filenames with paths
+            }
+            return _lngs;
+          }
+        }
+        return Pod_();
+      }
+      auto src() {
+        string _fns = _fns; // required here by dmd & not by ldc (for D:2078)
+        auto _opt_action = _opt_action;
+        auto _env = _env;
+        struct SRC_ {
+          bool is_pod() {
+            return (_manifested.pod_manifest_path.length > 0) ? true : false;
+          }
+          string path_and_fn() {
+            return _fns;
+          }
+          string pod_name_with_path() {
+            return (is_pod) ? _manifested.pod_manifest_path : "";
+          }
+          string pods_collection_root_path() {
+            return (is_pod) ? _manifested.pods_collection_root_path : "";
+          }
+          string pod_name() {
+            return pod_name_with_path.baseName;
+          }
+          string filename() {
+            return path_and_fn.baseName;
+          }
+          string filename_base() {
+            return filename.stripExtension;
+          }
+          string filename_extension() {
+            return filename.match(rgx_files.src_pth_sst_or_ssm).captures["extension"];
+          }
+          string lng() {
+            string _k;
+            if (auto m = path_and_fn.match(rgx_files.language_code_and_filename)) {
+              _k = m.captures[1];
+            } else {_k = "en"; }
+            return _k;
+          }
+          string doc_uid() {
+            string _uid;
+            if (is_pod && !(pod_name_with_path.empty)) {
+              if (pod_name_with_path.baseName == filename_base) {
+                _uid = filename_base ~ "." ~ filename_extension ~ mkup.uid_sep ~ lng;
+              } else {
+                _uid = pod_name_with_path.baseName ~ mkup.uid_sep ~ filename_base ~ "." ~ filename_extension ~ mkup.uid_sep ~ lng;
+              }
+            } else {
+              _uid = mkup.uid_sep ~ filename_base ~ "." ~ filename_extension ~ mkup.uid_sep ~ lng;
+            }
+            return _uid;
+          }
+          string doc_uid_out() {
+            string _uid;
+            if (is_pod && !(pod_name_with_path.empty)) {
+              if (pod_name_with_path.baseName == filename_base) {
+                _uid = filename_base ~ "." ~ lng;
+              } else {
+                _uid = pod_name_with_path.baseName ~ mkup.uid_sep ~ filename_base ~ "." ~ lng;
+              }
+            } else {
+              _uid = "_" ~ filename_base ~ "." ~ lng;
+            }
+            return _uid;
+          }
+          string docname_composite_unique_per_src_doc() {
+            string _fn;
+            if (pod_name_with_path.baseName == filename_base) {
+              _fn = filename_base ~ mkup.uid_sep ~ filename_extension ~ mkup.uid_sep ~ lng;
+            } else if (!(pod_name_with_path.empty)) {
+              _fn = pod_name_with_path.baseName ~ mkup.uid_sep ~ filename_base ~ mkup.uid_sep ~ filename_extension ~ mkup.uid_sep ~ lng;
+            } else {
+              _fn = "_" ~ mkup.uid_sep ~ filename_base ~ mkup.uid_sep ~ filename_extension ~ mkup.uid_sep ~ lng;
+            }
+            return _fn;
+          }
+          string docname_composite_unique_per_src_pod() {
+          /+
+            z pod name if any + src filename (without lng code)
+             filename ~ mkup.uid_sep ~ lng
+             * unique per src pod
+             used by
+             - pod (multilingual collection)
+             - sqlite discrete index (multilingual collection)
+          +/
+            string _fn;
+            if (pod_name_with_path.baseName == filename_base) {
+              _fn = filename_base ~ mkup.uid_sep ~ filename_extension;
+            } else if (!(pod_name_with_path.empty)) {
+              _fn = pod_name_with_path.baseName ~ mkup.uid_sep ~ filename_base ~ mkup.uid_sep ~ filename_extension;
+            } else {
+              _fn = "_" ~ mkup.uid_sep ~ filename_base ~ mkup.uid_sep ~ filename_extension;
+            }
+            return _fn;
+          }
+          string language() {
+            return lng();
+          }
+          string file_with_absolute_path() {
+            return _env["pwd"].chainPath(path_and_fn).array;
+          }
+          string absolute_path_to_src() {
+            return (_env["pwd"].chainPath(path_and_fn)).dirName.array;
+          }
+          string path_to_doc_root_path_to_lang_and_filename() {
+            return _env["pwd"].chainPath(path_and_fn).array;
+          }
+          string base_dir() {
+            string _dir;
+            if (
+              auto m = (absolute_path_to_src)
+              .match(regex(r"[/](?P<dir>(?:[a-zA-Z0-9._-]+))/pod/" ~ filename.stripExtension))
+            ) {
+              _dir = ((path_and_fn.chainPath("../../")).asNormalizedPath).array;
+              assert(_dir == m.captures["dir"]);
+            } else {
+              _dir = ((path_and_fn.chainPath("../../../")).asNormalizedPath).array;
+              assert(_dir == absolute_path_to_src
+                .match(rgx_files.src_base_parent_dir_name).captures["dir"]);
+            }
+            if (_opt_action.debug_do) {
+              writeln("--> (base_dir)  ", _dir);
+            }
+            return _dir;
+          }
+          string base_parent_dir_path() {
+            string _dir;
+            if (
+              auto m = (absolute_path_to_src)
+              .match(regex(r"[/](?P<dir>(?:[a-zA-Z0-9._-]+))/pod/" ~ filename.stripExtension))
+            ) {
+              _dir = ((path_and_fn.chainPath("../../")).asNormalizedPath).array;
+            } else {
+              _dir = ((path_and_fn.chainPath("../../../")).asNormalizedPath).array;
+            }
+            return _dir;
+          }
+          string base_dir_path() {
+            string _dir;
+            if (
+              auto m = (absolute_path_to_src)
+              .match(rgx_files.src_formalised_file_path_parts)
+            ) {
+              _dir = ((m.captures["pth"]).asNormalizedPath).array;
+            } else if (
+             auto m = (absolute_path_to_src)
+             .match(regex(r"[/](?P<dir>(?:[a-zA-Z0-9._-]+))/pod/" ~ filename.stripExtension))
+            ) {
+              _dir = ((path_and_fn.chainPath("../")).asNormalizedPath).array;
+            } else {
+              _dir = ((path_and_fn.chainPath("../../")).asNormalizedPath).array;
+            }
+            if (_opt_action.debug_do) {
+              writeln("--> (base_dir_path) ", _dir);
+            }
+            return _dir;
+          }
+          string media_dir_path() {
+            string _dir = ((base_dir_path.chainPath("media")).asNormalizedPath).array;
+            return _dir;
+          }
+          string image_dir_path() {
+            string _paths;
+            string[] _possible_img_pths = [ "./image", "../image", "../../image" ];
+            string _img_pth_found = "";
+            if (is_pod) {
+              _img_pth_found = ((file_with_absolute_path.dirName ~ "/../../image").asNormalizedPath).array;
+            } else {
+              string _img_pth(string _possible_img_pth) {
+                return ((file_with_absolute_path.dirName ~ "/" ~ _possible_img_pth).asNormalizedPath).array;
+              }
+              foreach(_possible_img_pth; _possible_img_pths) {
+                if (exists(_img_pth(_possible_img_pth))) {
+                  _img_pth_found = _img_pth(_possible_img_pth);
+                  break;
+                } else {
+                  _paths ~= " " ~ _img_pth(_possible_img_pth);
+                }
+              }
+            }
+            if (_img_pth_found.empty) {
+              writeln("WARNING not image path found, searched: ", _paths);
+            }
+            return _img_pth_found;
+          }
+          auto conf_dir_path() {
+            return ((base_dir_path.chainPath("conf")).asNormalizedPath).array;
+          }
+          auto base_parent_dir() {
+            string _dir;
+            if (
+              auto m = (absolute_path_to_src)
+              .match(regex(r"[/](?P<dir>(?:[a-zA-Z0-9._-]+))/pod/" ~ filename.stripExtension))
+            ) {
+              _dir = m.captures["dir"];
+            } else {
+              _dir = (absolute_path_to_src).match(rgx_files.src_base_parent_dir_name).captures["dir"];
+            }
+            if (_opt_action.debug_do) {
+              writeln("--> (base_parent_dir) ", _dir);
+            }
+            return _dir;
+          }
+          string[] config_dirs() {
+            string[] _config_dirs;
+            if (is_pod) {
+            } else {}
+            return _config_dirs;
+          }
+          string[] image_dirs() {
+            string[] _image_dirs;
+            if (is_pod) {
+            } else {}
+            return _image_dirs;
+          }
+        }
+        return SRC_();
+      }
+      auto output() {
+        /+
+          - command line if output path set
+          - config file if found and set set
+            - search for and if exists read config
+              - default paths to config related to:
+                - source markup path;
+                - current dir;
+                - home dir
+              - get output path if set
+          - (program) default within current directory?
+        +/
+        auto _env = _env;
+        struct Out_ {
+          auto path() {
+            auto _output_path = _env["pwd"];
+            if ((_opt_action.output_dir_set.length > 0)
+              && isValidPath(_opt_action.output_dir_set)
+            ) {
+              _output_path = ((_opt_action.output_dir_set).asNormalizedPath).array;
+              if (!exists(_output_path)) {
+                try {
+                  _output_path.mkdirRecurse;
+                // } catch (ErrnoException ex) {
+                } catch (Exception ex) {
+                  // Handle error
+                }
+              }
+              assert(_output_path.isDir,
+                "not a directory: " ~ _output_path);
+              // TODO always test that is a directory and it is writable
+            }
+            return _output_path;
+          }
+        }
+        return Out_();
+      }
+    }
+    return ManifestMatters_();
+  }
+}
+template configFilePaths() {
+  auto configFilePaths(M,E)(
+    M      _manifested,
+    E      _env,
+    string _cli_config_path_set = ""
+  ) {
+    struct ConfFilePaths {
+      string config_filename_document() {
+        return "dr_document_make";
+      }
+      string config_filename_site() {
+        return "config_local_site";
+      }
+      auto possible_config_path_locations() {
+        struct _ConfFilePaths {
+          string[] dr_document_make() {
+            /+ FIX clean up conf paths ↓ +/
+            /+ config local site (file system only, not in pod) +/
+            /+ return paths +/
+            string[] _possible_config_path_locations;
+            if (_cli_config_path_set.empty) {
+              if (_manifested.src.is_pod) {
+                /+ config document in pod +/
+                string _dr_doc_conf_pod;
+                string _dr_doc_conf_pod_text;
+                _dr_doc_conf_pod = asNormalizedPath(chainPath(
+                  to!string(_env["pwd"]),
+                  _manifested.pod.manifest_path ~ "/conf"
+                )).array;
+                _dr_doc_conf_pod_text = asNormalizedPath(chainPath(
+                  to!string(_env["pwd"]),
+                  _manifested.pod.manifest_path ~ "/media/text/" ~ _manifested.src.lng ~ "/conf"
+                )).array;
+                /+ return paths +/
+                _possible_config_path_locations = [
+                  _dr_doc_conf_pod_text,
+                  _dr_doc_conf_pod,
+                ];
+              } else {
+                /+ config document (& or local site) on filesystem +/
+                string _dr_doc_conf_pwd   = ((chainPath(to!string(_env["pwd"]), "dr_doc/conf")).asNormalizedPath).array; // think about
+                string _dr_doc_conf_pwd_a = ((chainPath(to!string(_env["pwd"]), "conf")).asNormalizedPath).array;
+                string _dr_doc_conf_pwd_b = ((chainPath(to!string(_env["pwd"]), "../conf")).asNormalizedPath).array;
+                string _dr_doc_conf_pwd_c = ((chainPath(to!string(_env["pwd"]), "../../conf")).asNormalizedPath).array;
+                string _dr_doc_conf_pwd_d = ((chainPath(to!string(_env["pwd"]), "../../../conf")).asNormalizedPath).array;
+                /+ return paths +/
+                _possible_config_path_locations = [
+                  _dr_doc_conf_pwd,
+                  _dr_doc_conf_pwd_a,
+                  _dr_doc_conf_pwd_b,
+                  _dr_doc_conf_pwd_c,
+                  _dr_doc_conf_pwd_d,
+                ];
+              }
+            } else if (_cli_config_path_set.isDir) {
+               _possible_config_path_locations = [_cli_config_path_set ];
+            // } else if (_cli_config_path_set.isFile) { // use file, taken care of elsewhere
+            }
+            /+ FIX clean up conf paths ↑
+            (compare pwd to doc path location, and build config path)
+            +/
+            return _possible_config_path_locations;
+          }
+          string[] config_local_site() {
+            /+ FIX clean up conf paths ↓ +/
+            /+ config local site (file system only, not in pod) +/
+            string[] _possible_config_path_locations;
+            if (_cli_config_path_set.empty) {
+              string _dot_pwd        = ((chainPath(to!string(_env["pwd"]), ".dr")).asNormalizedPath).array;
+              string _underscore_pwd = ((chainPath(to!string(_env["pwd"]), "_dr")).asNormalizedPath).array;
+              string _dot_home       = ((chainPath(to!string(_env["home"]), ".dr")).asNormalizedPath).array;
+              /+ return paths +/
+              if (_manifested.src.is_pod) {
+                string _collection_root_a = ((chainPath(to!string(_manifested.pod.collection_root.to!string), ".dr")).asNormalizedPath).array;
+                string _collection_root_b = ((chainPath(to!string(_manifested.pod.collection_root.to!string), "_dr")).asNormalizedPath).array;
+                _possible_config_path_locations = [
+                  _dot_pwd,
+                  _underscore_pwd,
+                  _collection_root_a,
+                  _collection_root_b,
+                  _dot_home,
+                  "/etc/dr",
+                ];
+              } else {
+                /+ config document (& or local site) on filesystem +/
+                string _dr_doc_conf_pwd   = ((chainPath(to!string(_env["pwd"]), "dr_doc/conf")).asNormalizedPath).array;
+                string _dr_doc_conf_pwd_a = ((chainPath(to!string(_env["pwd"]), "conf")).asNormalizedPath).array;
+                string _dr_doc_conf_pwd_b = ((chainPath(to!string(_env["pwd"]), "../conf")).asNormalizedPath).array;
+                string _dr_doc_conf_pwd_c = ((chainPath(to!string(_env["pwd"]), "../../conf")).asNormalizedPath).array;
+                string _dr_doc_conf_pwd_d = ((chainPath(to!string(_env["pwd"]), "../../../conf")).asNormalizedPath).array;
+                _possible_config_path_locations = [
+                  _dr_doc_conf_pwd,
+                  _dr_doc_conf_pwd_a,
+                  _dr_doc_conf_pwd_b,
+                  _dr_doc_conf_pwd_c,
+                  _dr_doc_conf_pwd_d,
+                  _dot_pwd,
+                  _underscore_pwd,
+                  _dot_home,
+                  "/etc/dr"
+                ];
+              }
+            } else {
+              _possible_config_path_locations = [
+                _cli_config_path_set
+              ];
+            }
+            /+ FIX clean up conf paths ↑
+            (compare pwd to doc path location, and build config path)
+            +/
+            return _possible_config_path_locations;
+          }
+        }
+        return _ConfFilePaths();
+      }
+    }
+    return ConfFilePaths();
+  }
+}
+template spinePathsSRC() {
+  mixin spineRgxFiles;
+  static auto rgx_files = RgxFiles();
+  auto spinePathsSRC(D,Fn)(
+    D   _pwd,
+    Fn  _fn_src_and_path,
+  ) {
+    struct drSrcPaths {
+      auto pwd() {
+        return _pwd;
+      }
+      string language() {
+        // use command line info as well?
+        string _k;
+        if (auto m = _fn_src_and_path.match(rgx_files.language_code_and_filename)) {
+          _k = m.captures[1];
+        } else { /+ unknown until doc_meta read, (could provide & use command line info?) +/
+          _k = "xx"; // original default was "en" but is not known
+        }
+        return _k;
+      }
+      string doc_root() {
+        return "dr_doc";
+      }
+      auto media_root() {
+        return ((doc_root.chainPath("media")).asNormalizedPath).array;
+      }
+      auto conf_root() {
+        return ((doc_root.chainPath("conf")).asNormalizedPath).array;
+      }
+      auto text_root() {
+        return ((media_root.chainPath("text")).asNormalizedPath).array;
+      }
+      auto image_root() {
+        return ((media_root.chainPath("image")).asNormalizedPath).array;
+      }
+      auto doc_src_fn_with_path_for_text_root_and_lng() {
+        return ((text_root.chainPath(language)).asNormalizedPath).array;
+      }
+      auto doc_src_fn() {
+        return ((_fn_src_and_path.baseName).asNormalizedPath).array;
+      }
+      auto doc_src_with_path() {
+        return ((pwd.chainPath(_fn_src_and_path)).asNormalizedPath).array;
+      }
+    }
+    return drSrcPaths();
+  }
+}
+
+
+template spinePathsPods() {
+  string _suffix = ".zip";
+  auto spinePathsPods(M)(M doc_matters) {
+    string _base_dir_pod = (doc_matters.output_path.length > 0)
+    ? doc_matters.output_path ~ "/pod"
+    : "/pod";
+    string _base_dir_doc = "dr_doc";
+    struct _PodPaths {
+      string base_filename_(string fn_src) {
+        return  fn_src.baseName.stripExtension;
+      }
+      string internal_base() {
+        return "pod";
+      }
+      string pod_dir_() {
+        return _base_dir_pod;
+      }
+      string dr_doc_dir_() {
+        return _base_dir_doc;
+      }
+      string pod_filename_(string fn_src) {
+        return _base_dir_pod.chainPath(base_filename_(fn_src) ~ _suffix).array;
+      }
+      string base_filesystem_(string fn_src) {
+        string pth = _base_dir_pod.chainPath(base_filename_(fn_src)).array;
+        assert(pth == _base_dir_pod ~ "/"  ~ base_filename_(fn_src),
+          pth ~ " == "  ~ _base_dir_pod ~ "/" ~ base_filename_(fn_src) ~ "?");
+        return pth;
+      }
+      string output_pod_manifest_file(string fn_src) {
+        return base_filesystem_(fn_src).chainPath("pod.manifest").array;
+      }
+      string base_pod_(string fn_src) {
+        return _base_dir_pod.chainPath(base_filename_(fn_src)).array; // change this
+      }
+      auto base_filename(string fn_src) {
+        auto pth_1_ = base_filename_(fn_src);
+        auto pth_2_ = base_filename_(fn_src);
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto pod_filename(string fn_src) {
+        auto pth_1_ = pod_filename_(fn_src);
+        auto pth_2_ = pod_filename_(fn_src);
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto base(string fn_src) {
+        auto pth_1_ = "";
+        auto pth_2_ = base_filesystem_(fn_src);
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto pod_root(string fn_src) {
+        auto pth_1_ = "pod";
+        auto pth_2_ = ((base(fn_src).filesystem_open_zpod.chainPath("")).asNormalizedPath).array; // "dr_doc"
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto conf_root(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = "conf";
+        auto pth_2_ = ((pod_root(fn_src).filesystem_open_zpod.chainPath("conf")).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto css(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((conf_root(fn_src).zpod.chainPath("css")).asNormalizedPath).array;
+        auto pth_2_ = ((conf_root(fn_src).filesystem_open_zpod.chainPath("css")).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto pod_manifest(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((pod_root(fn_src).zpod.chainPath("pod.manifest")).asNormalizedPath).array;
+        auto pth_2_ = ((pod_root(fn_src).filesystem_open_zpod.chainPath("pod.manifest")).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto media_root(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((pod_root(fn_src).zpod.chainPath("media")).asNormalizedPath).array;
+        auto pth_2_ = ((pod_root(fn_src).filesystem_open_zpod.chainPath("media")).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto text_root(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((media_root(fn_src).zpod.chainPath("text")).asNormalizedPath).array;
+        auto pth_2_ = ((media_root(fn_src).filesystem_open_zpod.chainPath("text")).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto doc(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = text_root(fn_src).zpod;
+        auto pth_2_ = text_root(fn_src).filesystem_open_zpod;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto doc_lng(string fn_src, string lng) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((text_root(fn_src).zpod.chainPath(lng)).asNormalizedPath).array;
+        auto pth_2_ = ((text_root(fn_src).filesystem_open_zpod.chainPath(lng)).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto image_root(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((media_root(fn_src).zpod.chainPath("image")).asNormalizedPath).array;
+        auto pth_2_ = ((media_root(fn_src).filesystem_open_zpod.chainPath("image")).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto fn_pod_filelist(string fn_src) {
+        auto pod_root_ = pod_root(fn_src);
+        auto _manifested = PodManifest!()(doc_matters.opt.action, fn_src).pod_manifest_filename;
+        auto pth_1_ = _manifested;
+        auto pth_2_ = ((pod_root(fn_src).filesystem_open_zpod.chainPath(_manifested)).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto fn_doc(string fn_src, string lng) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((doc_lng(fn_src, lng).zpod.chainPath(fn_src.baseName)).asNormalizedPath).array;
+        auto pth_2_ = ((doc_lng(fn_src, lng).filesystem_open_zpod.chainPath(fn_src.baseName)).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+      auto fn_doc_insert(string fn_src, string fn_insert, string lng) {
+        auto pod_root_ = pod_root(fn_src);
+        auto pth_1_ = ((doc_lng(fn_src, lng).zpod.chainPath(fn_insert.baseName)).asNormalizedPath).array;
+        auto pth_2_ = ((doc_lng(fn_src, lng).filesystem_open_zpod.chainPath(fn_insert.baseName)).asNormalizedPath).array;
+        struct _pods {
+          auto zpod() {
+            return pth_1_;
+          }
+          auto filesystem_open_zpod() {
+            // assert(pod_root_.filesystem_open_zpod.chainPath(zpod).array == pth_2_);
+            return pth_2_;
+          }
+        }
+        return _pods();
+      }
+    }
+    return _PodPaths();
+  }
+}
diff --git a/src/sisudoc/io_in/read_config_files.d b/src/sisudoc/io_in/read_config_files.d
new file mode 100644
index 0000000..c71364c
--- /dev/null
+++ b/src/sisudoc/io_in/read_config_files.d
@@ -0,0 +1,279 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  read configuration files<BR>
+  - read config files<BR>
+  meta_config_files.d
++/
+module sisudoc.io_in.read_config_files;
+@safe:
+import
+  std.file,
+  std.path;
+import
+  sisudoc.meta,
+  sisudoc.io_in.paths_source,
+  sisudoc.meta.rgx_files,
+  sisudoc.meta.rgx;
+template readConfigSite() {
+  @system final auto readConfigSite(Cf,O,Cfg)(Cf _conf_file_details, O _opt_action, Cfg _cfg) {
+    mixin spineRgxIn;
+    static auto rgx = RgxI();
+    string conf_filename = "NONE";
+    string config_file_str;
+    string default_config_file_str = format(q"┃
+flag:
+  act0:                  "--html"
+  act1:                  "--html --epub"
+output:
+  path:                  "%s"
+default:
+  language:              "en"
+  papersize:             "a4"
+  text_wrap:             "80"
+  digest:                "sha256"
+webserv:
+  http:                  "%s"
+  host:                  "%s"
+  data_http:             "%s"
+  data_host:             "%s"
+  data_root_url:         "%s"
+  data_root_path:        "%s"
+  data_root_part:        ""
+  images_root_part:      "image"
+  cgi_search_form_title: "%s"
+  cgi_http:              "%s"
+  cgi_host:              "%s"
+  cgi_bin_url:           "%s"
+  cgi_bin_subpath:       "%s"
+  cgi_bin_path:          "%s"
+  cgi_search_script:     "%s"
+  cgi_port:              ""
+  cgi_user:              ""
+  cgi_action:            "%s"
+  db_sqlite_path:        "%s"
+  db_sqlite_filename:    "%s"
+  db_pg_table:           ""
+  db_pg_user:            ""
+┃",
+  _cfg.processing_path_doc_root, // doc root
+  _cfg.http_request_type,        // http
+  _cfg.http_host,                // host / domain
+  _cfg.http_request_type,        // data "http" or "https"
+  _cfg.http_host,                // data domain "localhost"
+  _cfg.www_url_doc_root,         // data root url "http://locahost" "https://sisudoc.org"
+  _cfg.processing_path_doc_root, // data root path
+  _cfg.cgi_search_form_title,    // cgi title // e.g. "≅ SiSU Spine search"
+  _cfg.http_request_type,        // cgi http
+  _cfg.http_host,                // cgi host
+  _cfg.cgi_url_root,             // cgi bin url
+  _cfg.cgi_bin_subpath,          // cgi bin path
+  _cfg.cgi_bin_root,             // cgi bin path
+  _cfg.cgi_filename,             // cgi filename
+  _cfg.cgi_url_action,           // cgi action
+  _cfg.db_sqlite_path,           // sqlite db path
+  _cfg.db_sqlite_filename,       // sqlite db filename
+);
+    foreach(conf_fn; [_conf_file_details.config_filename_site]) {
+      foreach(pth; _conf_file_details.possible_config_path_locations.config_local_site) {
+        char[] conf_file;
+        conf_filename = conf_fn;
+        if (exists(pth)) {
+          auto f_attrib = pth.getLinkAttributes;
+          if (
+            _conf_file_details.possible_config_path_locations.config_local_site.length == 1
+            && f_attrib.attrIsFile
+          ) {
+            conf_file = pth.to!(char[]);
+            conf_filename = pth.baseName;
+          } else if (f_attrib.attrIsDir) {
+            conf_file = ((chainPath(pth.to!string, conf_fn)).asNormalizedPath).array;
+            conf_filename = conf_fn;
+          }
+          try {
+            if (exists(conf_file)) {
+              if (conf_file.getLinkAttributes.attrIsFile) {
+                if (_opt_action.vox_gt1 || _opt_action.debug_do) {
+                  writeln("config file used: \"", conf_file, "\" (cli flag settings override config file's individual settings)");
+                }
+                config_file_str = conf_file.readText;
+                break;
+              }
+            }
+          } catch (ErrnoException ex) {
+          } catch (FileException ex) {
+          }
+        }
+      }
+      if (config_file_str.length > 0) { break; }
+    }
+    if (config_file_str.length > 0) {
+      import dyaml;
+      Node yaml_root;
+      try {
+        yaml_root = Loader.fromString(config_file_str).load();
+      } catch (Throwable) {
+        import std.stdio;
+        writeln("ERROR failed to read config file content, not parsed as yaml, program default used");
+        conf_filename = "VIRTUAL";
+        config_file_str = default_config_file_str;
+      }
+    }
+    if (config_file_str.length == 0) { /+ use dummy default config file +/
+      // writeln("WARNING config file NOT found, default provided");
+      conf_filename = "VIRTUAL";
+      config_file_str = default_config_file_str;
+    }
+    struct _ConfContent {
+      string filename() {
+        return conf_filename;
+      }
+      string filetype() {
+        string _ft = "";
+        if (content.match(rgx.yaml_config)) {
+          _ft = "yaml";
+        }
+        return _ft;
+      }
+      string content() {
+        return config_file_str;
+      }
+    }
+    return _ConfContent();
+  }
+}
+static template readConfigDoc() {
+  import
+    std.file,
+    std.path;
+  import
+    sisudoc.meta,
+    sisudoc.io_in.paths_source,
+    sisudoc.meta.rgx_files,
+    sisudoc.meta.rgx;
+  @system final auto readConfigDoc(M,E)(M _manifested, E _env) {
+    mixin spineRgxIn;
+    static auto rgx = RgxI();
+    mixin spineRgxFiles;
+    static auto rgx_files = RgxFiles();
+    string config_file_str;
+    string conf_filename = "NONE";
+    auto _conf_file_details = configFilePaths!()(_manifested, _env);
+    string[] possible_config_path_locations = _conf_file_details.possible_config_path_locations.dr_document_make;
+    foreach(conf_fn; [_conf_file_details.config_filename_document]) {
+      foreach(pth; possible_config_path_locations) {
+        char[] conf_file = ((chainPath(pth.to!string, conf_fn)).asNormalizedPath).array;
+        conf_filename = conf_fn;
+        if (config_file_str.length > 0) {
+          break;
+        }
+        try {
+          if (exists(conf_file)) {
+            if (conf_file.getLinkAttributes.attrIsFile) {
+              config_file_str = conf_file.readText;
+              break;
+            }
+          }
+        } catch (ErrnoException ex) {
+        } catch (FileException ex) {
+        }
+      }
+      if (config_file_str.length > 0) { break; }
+    }
+    struct _ConfContent {
+      string filename() {
+        return conf_filename;
+      }
+      string content() {
+        return config_file_str;
+      }
+      string filetype() {
+        string _ft = "";
+        if (content.match(rgx.yaml_config)) {
+          _ft = "yaml";
+        }
+        return _ft;
+      }
+    }
+    return _ConfContent();
+  }
+}
+static template configReadSiteYAML() {
+  import
+    std.file,
+    std.path;
+  import
+    sisudoc.meta,
+    sisudoc.io_in.paths_source,
+    sisudoc.meta.rgx_files,
+    sisudoc.meta.rgx;
+  final YAMLDocument configReadSiteYAML(M,E)(M _manifested, E _env) {
+    string _configuration = configReadInSiteYAML!()(_manifested, _env);
+    auto _conf_file_details = configFilePaths!()(_manifested, _env);
+    string _conf_yaml_fn = _conf_file_details.config_filename_site;
+    YAMLDocument _yaml_conf = configYAML!()(_configuration, _conf_yaml_fn);
+    return _yaml_conf;
+  }
+}
+static template configReadDocYAML() {
+  import
+    std.file,
+    std.path;
+  import
+    sisudoc.meta,
+    sisudoc.io_in.paths_source;
+  final YAMLDocument configReadDocYAML(M,E)(M _manifested, E _env) {
+    string _configuration = configReadInDocYAML!()(_manifested, _env);
+    auto _conf_file_details = configFilePaths!()(_manifested, _env);
+    string _conf_yaml_fn = _conf_file_details.config_filename_document;
+    YAMLDocument _yaml_conf = configYAML!()(_configuration, _conf_yaml_fn);
+    return _yaml_conf;
+  }
+}
diff --git a/src/sisudoc/io_in/read_source_files.d b/src/sisudoc/io_in/read_source_files.d
new file mode 100644
index 0000000..4ba0b4f
--- /dev/null
+++ b/src/sisudoc/io_in/read_source_files.d
@@ -0,0 +1,396 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  module source_read_source_files;<BR>
+  - open markup files<BR>
+  - if master file scan for addional files to import/insert
++/
+module sisudoc.io_in.read_source_files;
+@safe:
+template spineRawMarkupContent() {
+  import
+    std.file,
+    std.path;
+  import
+    sisudoc.meta,
+    sisudoc.io_in.paths_source,
+    sisudoc.meta.rgx_files,
+    sisudoc.meta.rgx;
+  mixin spineRgxIn;
+  static auto rgx = RgxI();
+  mixin spineRgxFiles;
+  static auto rgx_files = RgxFiles();
+  string[] _images=[];
+  string[] _extract_images(S)(S content_block) {
+    string[] images_;
+    string _content_block = content_block.to!string;
+    if (auto m = _content_block.matchAll(rgx.image)) {
+      images_ ~= m.captures[1].to!string;
+    }
+    return images_;
+  }
+  auto rawsrc = RawMarkupContent();
+  alias ContentsInsertsImages = Tuple!(
+    char[][], "contents",
+    string[], "insert_files",
+    string[], "images"
+  );
+  alias HeaderContentInsertsImages = Tuple!(
+    char[],   "header",
+    char[][], "src_txt",
+    string[], "insert_files",
+    string[], "images"
+  );
+  auto spineRawMarkupContent(O,Fn)(O _opt_action, Fn fn_src) {
+    auto _0_header_1_body_content_2_insert_filelist_tuple
+      = rawsrc.sourceContentSplitIntoHeaderAndBody(_opt_action, rawsrc.sourceContent(fn_src), fn_src);
+    return _0_header_1_body_content_2_insert_filelist_tuple;
+  }
+  struct RawMarkupContent {
+    final sourceContent(in string fn_src) {
+      auto raw = MarkupRawUnit();
+      string source_txt_str
+        = raw.markupSourceReadIn(fn_src);
+      return source_txt_str;
+    }
+    final auto sourceContentSplitIntoHeaderAndBody(O)(
+      O         _opt_action,
+      in string source_txt_str,
+      in string fn_src=""
+    ) {
+      auto raw = MarkupRawUnit();
+      string[] insert_file_list;
+      string[] images_list;
+      HeaderContentInsertsImages t
+        = raw.markupSourceHeaderContentRawLineTupleArray(source_txt_str);
+      char[] header_raw = t.header;
+      char[][] sourcefile_body_content = t.src_txt;
+      if (fn_src.match(rgx_files.src_fn_master)) { // filename with path needed if master file (.ssm) not otherwise
+        auto ins = Inserts();
+        ContentsInsertsImages tu
+          = ins.scan_master_src_for_insert_files_and_import_content(_opt_action, sourcefile_body_content, fn_src);
+        sourcefile_body_content = tu.contents;
+        insert_file_list = tu.insert_files.dup;
+        images_list = tu.images.dup;
+      } else if (_opt_action.source || _opt_action.pod) {
+        auto ins = Inserts();
+        ContentsInsertsImages tu
+          = ins.scan_master_src_for_insert_files_and_import_content(_opt_action, sourcefile_body_content, fn_src);
+        images_list = tu.images.dup;
+      }
+      string header_type = "";
+      t = tuple(
+        header_raw,
+        sourcefile_body_content,
+        insert_file_list,
+        images_list
+      );
+      return t;
+    }
+  }
+  struct MarkupRawUnit {
+    import std.file;
+    final private string readInMarkupSource(in char[] fn_src) {
+      enforce(
+        exists(fn_src) != 0,
+        "file not found: «" ~
+        fn_src ~ "»"
+      );
+      string source_txt_str;
+      try {
+        if (exists(fn_src)) {
+          if (fn_src.getLinkAttributes.attrIsFile) {
+            source_txt_str = fn_src.readText;
+          } else {
+          }
+        }
+      } catch (ErrnoException ex) {
+      } catch (UTFException ex) {
+        // Handle validation errors
+      } catch (FileException ex) {
+        // Handle errors
+      }
+      std.utf.validate(source_txt_str);
+      return source_txt_str;
+    }
+    @trusted final private char[][] header0Content1(in string src_text) { // cast(char[])
+      /+ split string on _first_ match of "^:?A~\s" into [header, content] array/tuple +/
+      char[][] header_and_content;
+      auto m = (cast(char[]) src_text).matchFirst(rgx.heading_a);
+      header_and_content ~= m.pre;
+      header_and_content ~= m.hit ~ m.post;
+      assert(header_and_content.length == 2,
+        "document markup is broken, header body split == "
+        ~ header_and_content.length.to!string
+        ~ "; (header / body array split should == 2 (split is on level A~))"
+      );
+      return header_and_content;
+    }
+    @trusted final private char[][] markupSourceLineArray(in char[] src_text) { // cast(char[])
+      char[][] source_line_arr
+        = (cast(char[]) src_text).split(rgx.newline_eol_strip_preceding);
+      return source_line_arr;
+    }
+    string markupSourceReadIn(in string fn_src) {
+      static auto rgx_files = RgxFiles();
+      enforce(
+        fn_src.match(rgx_files.src_pth_sst_or_ssm),
+        "not a dr markup filename: «" ~
+        fn_src ~ "»"
+      );
+      string source_txt_str = readInMarkupSource(fn_src);
+      return source_txt_str;
+    }
+    HeaderContentInsertsImages markupSourceHeaderContentRawLineTupleArray(in string source_txt_str) {
+      string[] file_insert_list = [];
+      string[] images_list = [];
+      char[][] hc = header0Content1(source_txt_str);
+      char[] header = hc[0];
+      char[] source_txt = hc[1];
+      char[][] source_line_arr = markupSourceLineArray(source_txt);
+      HeaderContentInsertsImages t = tuple(
+        header,
+        source_line_arr,
+        file_insert_list,
+        images_list
+      );
+      return t;
+    }
+    final char[][] getInsertMarkupSourceContentRawLineArray(
+      in char[]    fn_src_insert,
+      Regex!(char) rgx_file
+    ) {
+      enforce(
+        fn_src_insert.match(rgx_file),
+        "not a dr markup filename: «" ~
+        fn_src_insert  ~ "»"
+      );
+      string source_txt_str = readInMarkupSource(fn_src_insert);
+      char[][] source_line_arr = markupSourceLineArray(source_txt_str);
+      return source_line_arr;
+    }
+  }
+  struct Inserts {
+    alias ContentsAndImages = Tuple!(
+      char[][], "insert_contents",
+      string[], "images"
+    );
+    ContentsAndImages scan_subdoc_source(O)(
+      O        _opt_action,
+      char[][] markup_sourcefile_insert_content,
+      string   fn_src
+    ) {
+      char[][] contents_insert;
+      int code_block_status     = 0;
+      enum codeBlock { off, curly, tic, }
+      auto fn_pth_full = fn_src.match(rgx_files.src_pth_sst_or_ssm);
+      auto markup_src_file_path = fn_pth_full.captures[1];
+      foreach (line; markup_sourcefile_insert_content) {
+        if (code_block_status == codeBlock.curly) {
+          if (line.matchFirst(rgx.block_curly_code_close)) {
+            code_block_status = codeBlock.off;
+          }
+          contents_insert ~= line;
+        } else if (line.matchFirst(rgx.block_curly_code_open)) {
+          code_block_status   = codeBlock.curly;
+          contents_insert ~= line;
+        } else if (code_block_status == codeBlock.tic) {
+          if (line.matchFirst(rgx.block_tic_close)) {
+            code_block_status = codeBlock.off;
+          }
+          contents_insert ~= line;
+        } else if (line.matchFirst(rgx.block_tic_code_open)) {
+          code_block_status   = codeBlock.tic;
+          contents_insert ~= line;
+        } else if (auto m = line.match(rgx_files.insert_src_fn_ssi_or_sst)) {
+          auto insert_fn = m.captures[2];
+          auto insert_sub_pth = m.captures[1];
+          auto fn_src_insert
+            = chainPath(markup_src_file_path, insert_sub_pth ~ insert_fn).array;
+          auto raw = MarkupRawUnit();
+          auto markup_sourcesubfile_insert_content
+            = raw.getInsertMarkupSourceContentRawLineArray(fn_src_insert, rgx_files.src_fn_find_inserts);
+          debug(insert_file) {
+            writeln(line);
+            writeln(fn_src_insert);
+            writeln(
+              "  length contents insert array: ",
+              markup_sourcesubfile_insert_content.length
+            );
+          }
+          if (_opt_action.source || _opt_action.pod) {
+            _images ~= _extract_images(markup_sourcesubfile_insert_content);
+          }
+          auto ins = Inserts();
+          /+
+            - 1. load file
+            - 2. read lines
+            - 3. scan lines
+              - a. if filename insert, and insert filename
+                 - repeat 1
+              - b. else
+                 - add line to new array;
+                 - build image list, search for any image files to add to image list
+          +/
+        } else {
+          contents_insert ~= line; // images to extract for image list?
+          if (_opt_action.source || _opt_action.pod) {
+            string[] _image_linelist = _extract_images(line);
+            if (_image_linelist.length > 0) {
+              _images ~= _image_linelist;
+            }
+          }
+        }
+      } // end src subdoc (inserts) loop
+      ContentsAndImages t = tuple(
+        contents_insert,
+        _images
+      );
+      return t;
+    }
+    ContentsInsertsImages scan_master_src_for_insert_files_and_import_content(O)(
+      O        _opt_action,
+      char[][] sourcefile_body_content,
+      string   fn_src
+    ) {
+      import std.algorithm;
+      char[][] contents;
+      int code_block_status     = 0;
+      enum codeBlock { off, curly, tic, }
+      auto fn_pth_full = fn_src.match(rgx_files.src_pth_sst_or_ssm);
+      auto markup_src_file_path = fn_pth_full.captures[1];
+      char[][] contents_insert;
+      string[] _images          =[];
+      string[] insert_file_list =[];
+      foreach (line; sourcefile_body_content) {
+        if (code_block_status == codeBlock.curly) {
+          if (line.matchFirst(rgx.block_curly_code_close)) {
+            code_block_status = codeBlock.off;
+          }
+          contents ~= line;
+        } else if (line.matchFirst(rgx.block_curly_code_open)) {
+          code_block_status = codeBlock.curly;
+          contents ~= line;
+        } else if (code_block_status == codeBlock.tic) {
+          if (line.matchFirst(rgx.block_tic_close)) {
+            code_block_status = codeBlock.off;
+          }
+          contents ~= line;
+        } else if (line.matchFirst(rgx.block_tic_code_open)) {
+          code_block_status = codeBlock.tic;
+          contents ~= line;
+        } else if (auto m = line.match(rgx_files.insert_src_fn_ssi_or_sst)) {
+          auto insert_fn      = m.captures[2];
+          auto insert_sub_pth = m.captures[1];
+          auto fn_src_insert
+            = chainPath(markup_src_file_path, insert_sub_pth ~ insert_fn).array;
+            insert_file_list ~= fn_src_insert.to!string;
+          auto raw = MarkupRawUnit();
+          /+ TODO +/
+          auto markup_sourcefile_insert_content
+            = raw.getInsertMarkupSourceContentRawLineArray(fn_src_insert, rgx_files.src_fn_find_inserts);
+          debug(insert_file) {
+            writeln(line);
+            writeln(fn_src_insert);
+            writeln(
+              "  length contents insert array: ",
+              markup_sourcefile_insert_content.length
+            );
+          }
+          auto ins = Inserts();
+          ContentsAndImages contents_insert_tu = ins.scan_subdoc_source(
+            _opt_action,
+            markup_sourcefile_insert_content,
+            fn_src_insert.to!string
+          );
+          contents ~= contents_insert_tu.insert_contents;
+          if (_opt_action.source || _opt_action.pod) {
+            string[] _image_linelist = _extract_images(contents_insert_tu.images);
+            if (_image_linelist.length > 0) {
+              _images ~= _image_linelist;
+            }
+          }
+          /+
+            - 1. load file
+            - 2. read lines
+            - 3. scan lines
+              - a. if filename insert, and insert filename
+                 - repeat 1
+              - b. else
+                 - add line to new array;
+                 - build image list, search for any image files to add to image list
+          +/
+        } else {
+          contents ~= line;
+          if (_opt_action.source || _opt_action.pod) {
+            string[] _image_linelist = _extract_images(line);
+            if (_image_linelist.length > 0) {
+              _images ~= _image_linelist;
+            }
+          }
+        }
+      } // end src doc loop
+      string[] images = [];
+      foreach(i; uniq(_images.sort())) {
+        images ~= i;
+      }
+      debug(insert_file) {
+        writeln(__LINE__);
+        writeln(contents.length);
+      }
+      ContentsInsertsImages t = tuple(
+        contents,
+        insert_file_list,
+        images
+      );
+      return t;
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/cgi_sqlite_search_form.d b/src/sisudoc/io_out/cgi_sqlite_search_form.d
new file mode 100644
index 0000000..e835b07
--- /dev/null
+++ b/src/sisudoc/io_out/cgi_sqlite_search_form.d
@@ -0,0 +1,1959 @@
+/+
+- Name: Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2022 Ralph Amissah, All Rights
+    Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.doc_reform.org]
+    [https://www.sisudoc.org]
+
+  - Git
+    [https://git.sisudoc.org/projects/?p=software/spine.git;a=summary]
+
++/
+module doc_reform.io_out.cgi_sqlite_search_form;
+template CGIsearchSQLite() {
+  void CGIsearchSQLite(E,O,M)(E env, O opt_action, M make_and_meta_struct) {
+    import
+      std.file,
+      std.format;
+    import doc_reform.io_out;
+    string _sqlite_db_fn = (opt_action.sqliteDB_filename.empty)
+      ? make_and_meta_struct.conf.w_srv_db_sqlite_filename
+      : opt_action.sqliteDB_filename;
+    string _cgi_search_script = (opt_action.cgi_sqlite_search_filename.empty)
+      ? make_and_meta_struct.conf.w_srv_cgi_search_script
+      : opt_action.cgi_sqlite_search_filename;
+    string _cgi_search_script_raw_fn_d = (opt_action.cgi_sqlite_search_filename_d.empty)
+      ? make_and_meta_struct.conf.w_srv_cgi_search_script_raw_fn_d
+      : opt_action.cgi_sqlite_search_filename_d;
+    string get_doc_collection_subroot(string output_path) {
+      string web_doc_root_path = environment.get("DOCUMENT_ROOT", "/var/www/html");
+      auto m = output_path.matchFirst(regex("^(" ~ web_doc_root_path ~ ")"));
+      return m.post;
+    }
+    string the_cgi_search_form = format(q"≓
+/+ dub.sdl
+  name "spine search"
+  description "spine cgi search"
++/
+import std.format;
+import std.range;
+import std.regex;
+import arsd.cgi;
+import d2sqlite3;
+import std.process : environment;
+void cgi_function_intro(Cgi cgi) {
+  string header;
+  string table;
+  string form;
+  struct Config {
+    string http_request_type;
+    string http_host;
+    // string server_name;
+    string web_doc_root_path;
+    string doc_collection_subroot;
+    string cgi_root;
+    string cgi_script;
+    string data_path_html;
+    string db_path;
+    string query_string;
+    string http_url;
+    string request_method;
+  }
+  auto conf = Config();
+  conf.http_request_type       = environment.get("REQUEST_SCHEME",        "http");
+  conf.http_host               = environment.get("HTTP_HOST",             "localhost");
+  // conf.server_name             = environment.get("SERVER_NAME",           "localhost");
+  conf.web_doc_root_path       = environment.get("DOCUMENT_ROOT",         "/var/www/html");
+  conf.doc_collection_subroot = "%s"; // (output_path - web_doc_root_path)
+  conf.cgi_root                = environment.get("CONTEXT_DOCUMENT_ROOT", "/usr/lib/cgi-bin/");
+  // conf.cgi_script              = environment.get("SCRIPT_NAME",           "/cgi-bin/spine-search");
+  conf.query_string            = environment.get("QUERY_STRING",          "");
+  conf.http_url                = environment.get("HTTP_REFERER",          conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ conf.query_string);
+  conf.db_path                 = "%s"; // (output_path + /sqlite)
+  conf.request_method          = environment.get("REQUEST_METHOD",        "POST");
+  struct CGI_val {
+    string db_selected      = "";
+    string sql_match_limit  = "";     // radio: ( 1000 | 2500 )
+    string sql_match_offset = "";
+    string search_text      = "";
+    string results_type     = "";     // index
+    bool   checked_echo     = false;
+    bool   checked_stats    = false;
+    bool   checked_url      = false;
+    bool   checked_searched = false;
+    bool   checked_tip      = false;
+    bool   checked_sql      = false;
+  }
+  auto cv = CGI_val();
+  cv.db_selected = "%s";
+  auto text_fields() {
+    string canned_query_str = environment.get("QUERY_STRING", "");
+    if ("query_string" in cgi.post) {
+      canned_query_str = environment.get("QUERY_STRING", "");
+    }
+    string[string] canned_query;
+    if (conf.request_method == "POST") {
+    } else if (conf.request_method == "GET") {
+      foreach (pair_str; canned_query_str.split("&")) {
+        // cgi.write(pair_str ~ "<br>");
+        string[] pair = pair_str.split("=");
+        canned_query[pair[0]] = pair[1];
+      }
+      // foreach (field, content; canned_query) {
+      //   cgi.write(field ~ ": " ~ content ~ "<br>");
+      // }
+    }
+    static struct Rgx {
+      // static canned_query   = ctRegex!(`\A(?P<matched>.+)\Z`,                            "m");
+      static search_text_area  = ctRegex!(`\A(?P<matched>.+)\Z`,                            "m");
+      // static fulltext       = ctRegex!(`\A(?P<matched>.+)\Z`,                            "m");
+      static line              = ctRegex!(`^(?P<matched>.+?)(?: ~|$)`,                      "m");
+      static text              = ctRegex!(`(?:^|\s~\s*)text:\s+(?P<matched>.+?)(?: ~|$)`,   "m");
+      static author            = ctRegex!(`(?:^|\s~\s*)author:\s+(?P<matched>.+)$`,         "m");
+      static title             = ctRegex!(`(?:^|\s~\s*)title:\s+(?P<matched>.+)$`,          "m");
+      static uid               = ctRegex!(`(?:^|\s~\s*)uid:\s+(?P<matched>.+)$`,            "m");
+      static fn                = ctRegex!(`(?:^|\s~\s*)fn:\s+(?P<matched>.+)$`,             "m");
+      static keywords          = ctRegex!(`(?:^|\s~\s*)keywords:\s+(?P<matched>.+)$`,       "m");
+      static topic_register    = ctRegex!(`(?:^|\s~\s*)topic_register:\s+(?P<matched>.+)$`, "m");
+      static subject           = ctRegex!(`(?:^|\s~\s*)subject:\s+(?P<matched>.+)$`,        "m");
+      static description       = ctRegex!(`(?:^|\s~\s*)description:\s+(?P<matched>.+)$`,    "m");
+      static publisher         = ctRegex!(`(?:^|\s~\s*)publisher:\s+(?P<matched>.+)$`,      "m");
+      static editor            = ctRegex!(`(?:^|\s~\s*)editor:\s+(?P<matched>.+)$`,         "m");
+      static contributor       = ctRegex!(`(?:^|\s~\s*)contributor:\s+(?P<matched>.+)$`,    "m");
+      static date              = ctRegex!(`(?:^|\s~\s*)date:\s+(?P<matched>.+)$`,           "m");
+      static results_type      = ctRegex!(`(?:^|\s~\s*)type:\s+(?P<matched>.+)$`,           "m");
+      static format            = ctRegex!(`(?:^|\s~\s*)format:\s+(?P<matched>.+)$`,         "m");
+      static source            = ctRegex!(`(?:^|\s~\s*)source:\s+(?P<matched>.+)$`,         "m");
+      static language          = ctRegex!(`(?:^|\s~\s*)language:\s+(?P<matched>.+)$`,       "m");
+      static relation          = ctRegex!(`(?:^|\s~\s*)relation:\s+(?P<matched>.+)$`,       "m");
+      static coverage          = ctRegex!(`(?:^|\s~\s*)coverage:\s+(?P<matched>.+)$`,       "m");
+      static rights            = ctRegex!(`(?:^|\s~\s*)rights:\s+(?P<matched>.+)$`,         "m");
+      static comment           = ctRegex!(`(?:^|\s~\s*)comment:\s+(?P<matched>.+)$`,        "m");
+      // static abstract_         = ctRegex!(`(?:^|\s~\s*)abstract:\s+(?P<matched>.+)$`,       "m");
+      static src_filename_base = ctRegex!(`^src_filename_base:\s+(?P<matched>.+)$`,         "m");
+    }
+    struct searchFields {
+      string canned_query      = ""; // GET  canned_query     == cq
+      string search_text_area  = ""; // POST search_text_area == tsa
+      string text              = ""; // text              == txt
+      string author            = ""; // author            == au
+      string title             = ""; // title             == ti
+      string uid               = ""; // uid               == uid
+      string fn                = ""; // fn                == fn
+      string keywords          = ""; // keywords          == kw
+      string topic_register    = ""; // topic_register    == tr
+      string subject           = ""; // subject           == su
+      string description       = ""; // description       == de
+      string publisher         = ""; // publisher         == pb
+      string editor            = ""; // editor            == ed
+      string contributor       = ""; // contributor       == ct
+      string date              = ""; // date              == dt
+      string format            = ""; // format            == fmt
+      string source            = ""; // source            == src sfn
+      string language          = ""; // language          == lng
+      string relation          = ""; // relation          == rl
+      string coverage          = ""; // coverage          == cv
+      string rights            = ""; // rights            == rgt
+      string comment           = ""; // comment           == cmt
+      // string abstract          = "";
+      string src_filename_base = ""; // src_filename_base == bfn
+      string results_type      = ""; // results_type      == rt     radio
+      string sql_match_limit   = ""; // sql_match_limit   == sml    radio
+      string sql_match_offset  = ""; // sql_match_offset  == smo
+      string stats             = ""; // stats             == sts    checked
+      string echo              = ""; // echo              == ec     checked
+      string url               = ""; // url               == url    checked
+      string searched          = ""; // searched          == se     checked
+      string sql               = ""; // sql               == sql    checked
+    }
+    auto rgx  = Rgx();
+    auto got  = searchFields();
+    if (environment.get("REQUEST_METHOD", "POST") == "POST") {
+      if ("sf" in cgi.post) {
+        got.search_text_area =  cgi.post["sf"];
+        if (auto m = got.search_text_area.matchFirst(rgx.text)) {
+          got.text = m["matched"];
+          got.canned_query ~= "sf=" ~ m["matched"];
+        } else if (auto m = got.search_text_area.matchFirst(rgx.line)) {
+          if (
+            !(m["matched"].matchFirst(rgx.author))
+            && !(m["matched"].matchFirst(rgx.title))
+          ) {
+            got.text = m["matched"];
+            got.canned_query ~= "sf=" ~ m["matched"];
+          }
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.author)) {
+          got.author = m["matched"];
+          got.canned_query ~= "&au=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.title)) {
+          got.title = m["matched"];
+          got.canned_query ~= "&ti=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.uid)) {
+          got.uid = m["matched"];
+          got.canned_query ~= "&uid=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.fn)) {
+          got.fn = m["matched"];
+          got.canned_query ~= "&fn=" ~ m["matched"];
+        } else if ("fn" in cgi.post) {
+          got.search_text_area ~= "\nfn: " ~ cgi.post["fn"] ~ "\n";
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.keywords)) {
+          got.keywords = m["matched"];
+          got.canned_query ~= "&kw=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.topic_register)) {
+          got.topic_register = m["matched"];
+          got.canned_query ~= "&tr=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.subject)) {
+          got.subject = m["matched"];
+          got.canned_query ~= "&su=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.description)) {
+          got.description = m["matched"];
+          got.canned_query ~= "&de=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.publisher)) {
+          got.publisher = m["matched"];
+          got.canned_query ~= "&pb=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.editor)) {
+          got.editor = m["matched"];
+          got.canned_query ~= "&ed=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.contributor)) {
+          got.contributor = m["matched"];
+          got.canned_query ~= "&ct=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.date)) {
+          got.date = m["matched"];
+          got.canned_query ~= "&dt=" ~ m["matched"];
+        }
+        // if (auto m = got.search_text_area.matchFirst(rgx.results_type)) {
+        //   got.results_type = m["matched"];
+        //   got.canned_query ~= "&rt=" ~ m["matched"];
+        // }
+        if (auto m = got.search_text_area.matchFirst(rgx.format)) {
+          got.format = m["matched"];
+          got.canned_query ~= "&fmt=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.source)) {
+          got.source = m["matched"];
+          got.canned_query ~= "&src=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.language)) {
+          got.language = m["matched"];
+          got.canned_query ~= "&lng=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.relation)) {
+          got.relation = m["matched"];
+          got.canned_query ~= "&rl=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.coverage)) {
+          got.coverage = m["matched"];
+          got.canned_query ~= "&cv=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.rights)) {
+          got.rights = m["matched"];
+          got.canned_query ~= "&rgt=" ~ m["matched"];
+        }
+        if (auto m = got.search_text_area.matchFirst(rgx.comment)) {
+          got.comment = m["matched"];
+          got.canned_query ~= "&cmt=" ~ m["matched"];
+        }
+        // if (auto m = search_text_area.matchFirst(rgx.abstract)) {
+        //   got.abstract = m["matched"];
+        // }
+        if (auto m = got.search_text_area.matchFirst(rgx.src_filename_base)) {
+          got.src_filename_base = m["matched"];
+          got.canned_query ~= "&bfn=" ~ m["matched"];
+        }
+      }
+      if ("fn" in cgi.post) {
+        got.fn =  cgi.post["fn"];
+        got.canned_query ~= "&fn=" ~ cgi.post["fn"];
+      }
+      if ("rt" in cgi.post) {
+        got.results_type =  cgi.post["rt"];
+        got.canned_query ~= "&rt=" ~ cgi.post["rt"];
+      }
+      if ("sts" in cgi.post) {
+        got.stats =  cgi.post["sts"];
+        got.canned_query ~= "&sts=" ~ cgi.post["sts"];
+      }
+      if ("ec" in cgi.post) {
+        got.echo =  cgi.post["ec"];
+        got.canned_query ~= "&ec=" ~ cgi.post["ec"];
+      }
+      if ("url" in cgi.post) {
+        got.url =  cgi.post["url"];
+        got.canned_query ~= "&url=" ~ cgi.post["url"];
+      }
+      if ("se" in cgi.post) {
+        got.searched =  cgi.post["se"];
+        got.canned_query ~= "&se=" ~ cgi.post["se"];
+      }
+      if ("sql" in cgi.post) {
+        got.sql =  cgi.post["sql"];
+        got.canned_query ~= "&sql=" ~ cgi.post["sql"];
+      }
+      if ("sml" in cgi.post) {
+        got.sql_match_limit =  cgi.post["sml"];
+        got.canned_query ~= "&sml=" ~ cgi.post["sml"];
+      }
+      if ("smo" in cgi.post) {
+        got.sql_match_offset = "0";   // cgi.post["smo"];
+        got.canned_query ~= "&smo=0"; //  ~ cgi.post["smo"];
+      }
+      got.canned_query = got.canned_query.strip.split(" ").join("%%20");
+      conf.query_string = got.canned_query;
+      // cgi.write("f.canned_query: " ~ got.canned_query ~ "<br>");
+    } else if (environment.get("REQUEST_METHOD", "POST") == "GET") {
+      got.canned_query = environment.get("QUERY_STRING", "");
+      // cgi.write("f.canned_query: " ~ got.canned_query ~ "<br>");
+      got.search_text_area = "";
+      if ("sf" in canned_query && !(canned_query["sf"]).empty) {
+        got.text = canned_query["sf"].split("%%20").join(" ");
+        got.search_text_area ~= "text: " ~ got.text ~ "\n";
+      }
+      if ("au" in canned_query && !(canned_query["au"]).empty) {
+        got.author = canned_query["au"].split("%%20").join(" ");
+        got.search_text_area ~= "author: " ~ got.author ~ "\n";
+      }
+      if ("ti" in canned_query && !(canned_query["ti"]).empty) {
+        got.title = canned_query["ti"].split("%%20").join(" ");
+        got.search_text_area ~= "title: " ~ got.title ~ "\n";
+      }
+      if ("uid" in canned_query && !(canned_query["uid"]).empty) {
+        got.uid = canned_query["uid"].split("%%20").join(" ");
+        got.search_text_area ~= "uid: " ~ got.uid ~ "\n";
+      }
+      if ("fn" in canned_query && !(canned_query["fn"]).empty) {
+        got.fn = canned_query["fn"].split("%%20").join(" ");
+        got.search_text_area ~= "fn: " ~ got.fn ~ "\n";
+      }
+      if ("kw" in canned_query && !(canned_query["kw"]).empty) {
+        got.keywords = canned_query["kw"].split("%%20").join(" ");
+        got.search_text_area ~= "keywords: " ~ got.keywords ~ "\n";
+      }
+      if ("tr" in canned_query && !(canned_query["tr"]).empty) {
+        got.topic_register = canned_query["tr"].split("%%20").join(" ");
+        got.search_text_area ~= "topic_register: " ~ got.topic_register ~ "\n";
+      }
+      if ("su" in canned_query && !(canned_query["su"]).empty) {
+        got.subject = canned_query["su"].split("%%20").join(" ");
+        got.search_text_area ~= "subject: " ~ got.subject ~ "\n";
+      }
+      if ("de" in canned_query && !(canned_query["de"]).empty) {
+        got.description = canned_query["de"].split("%%20").join(" ");
+        got.search_text_area ~= "description: " ~ got.description ~ "\n";
+      }
+      if ("pb" in canned_query && !(canned_query["pb"]).empty) {
+        got.publisher = canned_query["pb"].split("%%20").join(" ");
+        got.search_text_area ~= "publisher: " ~ got.publisher ~ "\n";
+      }
+      if ("ed" in canned_query && !(canned_query["ed"]).empty) {
+        got.editor = canned_query["ed"].split("%%20").join(" ");
+        got.search_text_area ~= "editor: " ~ got.editor ~ "\n";
+      }
+      if ("ct" in canned_query && !(canned_query["ct"]).empty) {
+        got.contributor = canned_query["ct"].split("%%20").join(" ");
+        got.search_text_area ~= "contributor: " ~ got.contributor ~ "\n";
+      }
+      if ("dt" in canned_query && !(canned_query["dt"]).empty) {
+        got.date = canned_query["dt"].split("%%20").join(" ");
+        got.search_text_area ~= "date: " ~ got.date ~ "\n";
+      }
+      if ("rt" in canned_query && !(canned_query["rt"]).empty) {
+        got.results_type = canned_query["rt"].split("%%20").join(" ");
+        // got.search_text_area ~= "results_type: " ~ got.results_type ~ "\n";
+      }
+      if ("fmt" in canned_query && !(canned_query["fmt"]).empty) {
+        got.format = canned_query["fmt"].split("%%20").join(" ");
+        got.search_text_area ~= "format: " ~ got.format ~ "\n";
+      }
+      if ("src" in canned_query && !(canned_query["src"]).empty) {
+        got.source = canned_query["src"].split("%%20").join(" ");
+        got.search_text_area ~= "source: " ~ got.source ~ "\n";
+      }
+      if ("lng" in canned_query && !(canned_query["lng"]).empty) {
+        got.language = canned_query["lng"].split("%%20").join(" ");
+        got.search_text_area ~= "language: " ~ got.language ~ "\n";
+      }
+      if ("rl" in canned_query && !(canned_query["rl"]).empty) {
+        got.relation = canned_query["rl"].split("%%20").join(" ");
+        got.search_text_area ~= "relation: " ~ got.relation ~ "\n";
+      }
+      if ("cv" in canned_query && !(canned_query["cv"]).empty) {
+        got.coverage = canned_query["cv"].split("%%20").join(" ");
+        got.search_text_area ~= "coverage: " ~ got.coverage ~ "\n";
+      }
+      if ("rgt" in canned_query && !(canned_query["rgt"]).empty) {
+        got.rights = canned_query["rgt"].split("%%20").join(" ");
+        got.search_text_area ~= "rights: " ~ got.rights ~ "\n";
+      }
+      if ("cmt" in canned_query && !(canned_query["cmt"]).empty) {
+        got.comment = canned_query["cmt"].split("%%20").join(" ");
+        got.search_text_area ~= "comment: " ~ got.comment ~ "\n";
+      }
+      // if ("abstract" in canned_query && !(canned_query["abstract"]).empty) {
+      //   got.abstract = canned_query["abstract"];
+      // }
+      if ("bfn" in canned_query && !(canned_query["bfn"]).empty) { // search_field
+        got.src_filename_base = canned_query["bfn"].split("%%20").join(" ");
+        got.search_text_area ~= "src_filename_base: " ~ got.src_filename_base ~ "\n";
+      }
+      if ("sml" in canned_query && !(canned_query["sml"]).empty) {
+        got.sql_match_limit = canned_query["sml"].split("%%20").join(" ");
+        // got.search_text_area ~= "sql_match_limit: " ~ got.sql_match_limit ~ "\n";
+      }
+      // cgi.write("f.search_text_area: " ~ got.search_text_area ~ "<br>");
+    }
+    return got;
+  }
+  auto tf = text_fields; //
+  struct SQL_select {
+    string the_body         = "";
+    string the_range        = "";
+  }
+  auto sql_select = SQL_select();
+  string canned_url () {
+    string _url = "";
+    if (environment.get("REQUEST_METHOD", "POST") == "POST") {
+      _url = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ tf.canned_query;
+    } else if (environment.get("REQUEST_METHOD", "POST") == "GET") {
+      _url = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ environment.get("QUERY_STRING", "");
+    }
+    return _url;
+  }
+  auto regex_canned_search () {
+    static struct RgxCS {
+      static track_offset       = ctRegex!(`(?P<offset_key>[&]smo=)(?P<offset_val>[0-9]+)`);
+      static results_type       = ctRegex!(`[&]rt=(?P<results_type>idx|txt)`);
+      static results_type_index = ctRegex!(`[&]rt=idx`);
+      static results_type_text  = ctRegex!(`[&]rt=txt`);
+      static fn                 = ctRegex!(`[&]fn=(?P<fn>[^&]+)`);
+    }
+    return RgxCS();
+  }
+  string show_matched_objects (string fn) {
+    auto rgx = regex_canned_search;
+    string _matched_objects_text = "";
+    string _url = canned_url;
+    string _url_new = "";
+    string _matches_show_text  = "&rt=txt";
+    string _matches_show_index = "&rt=idx";
+    string _fn = "&fn=" ~ fn;
+    _url_new = _url;
+    if (_url_new.match(rgx.results_type_index)) {
+      _url_new = _url_new.replace(rgx.results_type_index, _matches_show_text);
+    } else if (_url.match(rgx.results_type_text)) {
+      _url_new = _url_new.replace(rgx.results_type_text, _matches_show_index);
+    } else {
+      if (!(_url.match(rgx.results_type))) {
+        _url_new = _url ~ _matches_show_text;
+      }
+    }
+    if (!(_url_new.match(rgx.fn))) {
+      _url_new = _url_new ~ _fn;
+    }
+    _matched_objects_text =
+      "<font size=\"2\" color=\"#666666\">"
+      ~ "<a href=\""
+      ~ _url_new
+      ~ "\">"
+      ~ "※"
+      ~ "</a></font>";
+    return _matched_objects_text;
+  }
+  string base                  ; // = "";
+  string tip                   ; // = "";
+  string search_note           ; // = "";
+  uint   sql_match_offset_count   = 0;
+  string previous_next () {
+    auto rgx = regex_canned_search;
+    string _previous_next = "";
+    int    _current_offset_value = 0;
+    string _set_offset_next = "";
+    string _set_offset_previous = "";
+    string _url = canned_url;
+    string _url_previous = "";
+    string _url_next = "";
+    string arrow_previous = "";
+    string arrow_next = "";
+    if (auto m = _url.matchFirst(rgx.track_offset)) {
+      _current_offset_value = m.captures["offset_val"].to!int;
+      _set_offset_next = m.captures["offset_key"] ~ ((m.captures["offset_val"]).to!int + cv.sql_match_limit.to!int).to!string;
+      _url_next = _url.replace(rgx.track_offset, _set_offset_next);
+      if (_current_offset_value < cv.sql_match_limit.to!int) {
+        _url_previous = "";
+      } else {
+        _url_previous = "";
+        _set_offset_previous = m.captures["offset_key"] ~ ((m.captures["offset_val"]).to!int - cv.sql_match_limit.to!int).to!string;
+        _url_previous = _url.replace(rgx.track_offset, _set_offset_previous);
+      }
+    } else {// _current_offset_value = 0;
+      _url_next = _url ~= "&smo=" ~ cv.sql_match_limit.to!string;
+    }
+    if (_url_previous.empty) {
+      arrow_previous = "";
+    } else {
+      arrow_previous =
+        "<font size=\"2\" color=\"#666666\">"
+        ~ "<a href=\""
+        ~ _url_previous
+        ~ "\">"
+        ~ "&lt;&lt prev"
+        ~ "</a> || </font>";
+    }
+    arrow_next =
+      "<font size=\"2\" color=\"#666666\">"
+      ~ "<a href=\""
+      ~ _url_next
+      ~ "\">"
+      ~ "next &gt;&gt"
+      ~ "</a></font>";
+    _previous_next = "<hr>" ~ arrow_previous ~ arrow_next;
+    return _previous_next;
+  }
+  {
+    header = format(q"┃
+<!DOCTYPE html>
+<html>
+<head>
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+  <title>
+  %s
+  </title>
+  <meta name="sourcefile" content="SiSU.sst">
+  <link rel="generator" href="sisudoc.org">
+  <link rel="shortcut icon" href="https://%%s/image_sys/spine.ico">
+  <style media = "all">
+   *{
+    padding                  : 0px;
+    margin                   : 2px;
+  }
+  body {
+    height                   : 100vh;
+    background-color         : #%s;
+  }
+  body {
+    color                    : #%s;
+    background               : #%s;
+    background-color         : #%s;
+  }
+  a:link {
+    color                    : #%s;
+    text-decoration          : none;
+  }
+  a:visited {
+    color                    : #%s;
+    text-decoration          : none;
+  }
+  a:hover {
+    color                    : #%s;
+    background-color         : #%s;
+  }
+  a.lnkocn:link {
+    color                    : #%s;
+    text-decoration          : none;
+  }
+  a.lnkocn:visited {
+    color                    : #%s;
+    text-decoration          : none;
+  }
+  a.lnkocn:hover {
+    color                    : #%s;
+    font-size                : 15px;
+  }
+  a:hover img {
+    background-color         : #%s;
+  }
+  a:active {
+    color                    : #%s;
+    text-decoration          : underline;
+  }
+  .flex-container {
+    display                  : flex;
+  }
+  div.publication {
+    margin-top               : 2px;
+    margin-bottom            : 4px;
+    margin-left              : 0%%%%;
+    margin-right             : 0%%%%;
+  }
+  div.textview_ocn {
+    margin-left              : 0%%%%;
+    margin-right             : 1%%%%;
+  }
+  div.textview_found {
+    margin-left              : 1%%%%;
+    margin-right             : 1%%%%;
+  }
+  textarea {
+    color                    : #%s;
+    background-color         : #%s;
+  }
+  span.match {
+    color                    : #%s;
+    background-color         : #%s;
+  }
+  p.norm { }
+  p.center { text-align      : center; }
+  p.i1 { padding-left        : 1em; }
+  p.i2 { padding-left        : 2em; }
+  p.i3 { padding-left        : 3em; }
+  p.i4 { padding-left        : 4em; }
+  p.i5 { padding-left        : 5em; }
+  p.i6 { padding-left        : 6em; }
+  p.i7 { padding-left        : 7em; }
+  p.i8 { padding-left        : 8em; }
+  p.i9 { padding-left        : 9em; }
+  /* hanging indent */
+  p[indent="h0i0"] {
+    padding-left             : 0em;
+    text-indent              : 0em;
+  }
+  p.publication {
+    font-size                : 100%%%%;
+    margin-left              : 0em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.ocn_is {
+    font-size                : 100%%%%;
+    display                  : inline-block;
+  }
+  p.matched_ocn {
+    font-size                : 90%%%%;
+    margin-left              : 2em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p[indent="h0i1"] {
+    padding-left             : 1em;
+    text-indent              : -1em;
+  }
+  p[indent="h0i2"] {
+    padding-left             : 2em;
+    text-indent              : -2em;
+  }
+  p[indent="h0i3"] {
+    padding-left             : 3em;
+    text-indent              : -3em;
+  }
+  p[indent="h0i4"] {
+    padding-left             : 4em;
+    text-indent              : -4em;
+  }
+  p[indent="h0i5"] {
+    padding-left             : 5em;
+    text-indent              : -5em;
+  }
+  p[indent="h0i6"] {
+    padding-left             : 6em;
+    text-indent              : -6em;
+  }
+  p[indent="h0i7"] {
+    padding-left             : 7em;
+    text-indent              : -7em;
+  }
+  p[indent="h0i8"] {
+    padding-left             : 8em;
+    text-indent              : -8em;
+  }
+  p[indent="h0i9"] {
+    padding-left             : 9em;
+    text-indent              : -9em;
+  }
+  p[indent="h1i0"] {
+    padding-left             : 0em;
+    text-indent              : 1em;
+  }
+  p[indent="h1i1"] {
+    padding-left             : 1em;
+    text-indent              : 0em;
+  }
+  p[indent="h1i2"] {
+    padding-left             : 2em;
+    text-indent              : -1em;
+  }
+  p[indent="h1i3"] {
+    padding-left             : 3em;
+    text-indent              : -2em;
+  }
+  p[indent="h1i4"] {
+    padding-left             : 4em;
+    text-indent              : -3em;
+  }
+  p[indent="h1i5"] {
+    padding-left             : 5em;
+    text-indent              : -4em;
+  }
+  p[indent="h1i6"] {
+    padding-left             : 6em;
+    text-indent              : -5em;
+  }
+  p[indent="h1i7"] {
+    padding-left             : 7em;
+    text-indent              : -6em;
+  }
+  p[indent="h1i8"] {
+    padding-left             : 8em;
+    text-indent              : -7em;
+  }
+  p[indent="h1i9"] {
+    padding-left             : 9em;
+    text-indent              : -8em;
+  }
+  p[indent="h2i0"] {
+    padding-left             : 0em;
+    text-indent              : 2em;
+  }
+  p[indent="h2i1"] {
+    padding-left             : 1em;
+    text-indent              : 1em;
+  }
+  p[indent="h2i2"] {
+    padding-left             : 2em;
+    text-indent              : 0em;
+  }
+  p[indent="h2i3"] {
+    padding-left             : 3em;
+    text-indent              : -1em;
+  }
+  p[indent="h2i4"] {
+    padding-left             : 4em;
+    text-indent              : -2em;
+  }
+  p[indent="h2i5"] {
+    padding-left             : 5em;
+    text-indent              : -3em;
+  }
+  p[indent="h2i6"] {
+    padding-left             : 6em;
+    text-indent              : -4em;
+  }
+  p[indent="h2i7"] {
+    padding-left             : 7em;
+    text-indent              : -5em;
+  }
+  p[indent="h2i8"] {
+    padding-left             : 8em;
+    text-indent              : -6em;
+  }
+  p[indent="h2i9"] {
+    padding-left             : 9em;
+    text-indent              : -7em;
+  }
+  p[indent="h3i0"] {
+    padding-left             : 0em;
+    text-indent              : 3em;
+  }
+  p[indent="h3i1"] {
+    padding-left             : 1em;
+    text-indent              : 2em;
+  }
+  p[indent="h3i2"] {
+    padding-left             : 2em;
+    text-indent              : 1em;
+  }
+  p[indent="h3i3"] {
+    padding-left             : 3em;
+    text-indent              : 0em;
+  }
+  p[indent="h3i4"] {
+    padding-left             : 4em;
+    text-indent              : -1em;
+  }
+  p[indent="h3i5"] {
+    padding-left             : 5em;
+    text-indent              : -2em;
+  }
+  p[indent="h3i6"] {
+    padding-left             : 6em;
+    text-indent              : -3em;
+  }
+  p[indent="h3i7"] {
+    padding-left             : 7em;
+    text-indent              : -4em;
+  }
+  p[indent="h3i8"] {
+    padding-left             : 8em;
+    text-indent              : -5em;
+  }
+  p[indent="h3i9"] {
+    padding-left             : 9em;
+    text-indent              : -6em;
+  }
+  p[indent="h4i0"] {
+    padding-left             : 0em;
+    text-indent              : 4em;
+  }
+  p[indent="h4i1"] {
+    padding-left             : 1em;
+    text-indent              : 3em;
+  }
+  p[indent="h4i2"] {
+    padding-left             : 2em;
+    text-indent              : 2em;
+  }
+  p[indent="h4i3"] {
+    padding-left             : 3em;
+    text-indent              : 1em;
+  }
+  p[indent="h4i4"] {
+    padding-left             : 4em;
+    text-indent              : 0em;
+  }
+  p[indent="h4i5"] {
+    padding-left             : 5em;
+    text-indent              : -1em;
+  }
+  p[indent="h4i6"] {
+    padding-left             : 6em;
+    text-indent              : -2em;
+  }
+  p[indent="h4i7"] {
+    padding-left             : 7em;
+    text-indent              : -3em;
+  }
+  p[indent="h4i8"] {
+    padding-left             : 8em;
+    text-indent              : -4em;
+  }
+  p[indent="h4i9"] {
+    padding-left             : 9em;
+    text-indent              : -5em;
+  }
+  p[indent="h5i0"] {
+    padding-left             : 0em;
+    text-indent              : 5em;
+  }
+  p[indent="h5i1"] {
+    padding-left             : 1em;
+    text-indent              : 4em;
+  }
+  p[indent="h5i2"] {
+    padding-left             : 2em;
+    text-indent              : 3em;
+  }
+  p[indent="h5i3"] {
+    padding-left             : 3em;
+    text-indent              : 2em;
+  }
+  p[indent="h5i4"] {
+    padding-left             : 4em;
+    text-indent              : 1em;
+  }
+  p[indent="h5i5"] {
+    padding-left             : 5em;
+    text-indent              : 0em;
+  }
+  p[indent="h5i6"] {
+    padding-left             : 6em;
+    text-indent              : -1em;
+  }
+  p[indent="h5i7"] {
+    padding-left             : 7em;
+    text-indent              : -2em;
+  }
+  p[indent="h5i8"] {
+    padding-left             : 8em;
+    text-indent              : -3em;
+  }
+  p[indent="h5i9"] {
+    padding-left             : 9em;
+    text-indent              : -4em;
+  }
+  p[indent="h6i0"] {
+    padding-left             : 0em;
+    text-indent              : 6em;
+  }
+  p[indent="h6i1"] {
+    padding-left             : 1em;
+    text-indent              : 5em;
+  }
+  p[indent="h6i2"] {
+    padding-left             : 2em;
+    text-indent              : 4em;
+  }
+  p[indent="h6i3"] {
+    padding-left             : 3em;
+    text-indent              : 3em;
+  }
+  p[indent="h6i4"] {
+    padding-left             : 4em;
+    text-indent              : 2em;
+  }
+  p[indent="h6i5"] {
+    padding-left             : 5em;
+    text-indent              : 1em;
+  }
+  p[indent="h6i6"] {
+    padding-left             : 6em;
+    text-indent              : 0em;
+  }
+  p[indent="h6i7"] {
+    padding-left             : 7em;
+    text-indent              : -1em;
+  }
+  p[indent="h6i8"] {
+    padding-left             : 8em;
+    text-indent              : -2em;
+  }
+  p[indent="h6i9"] {
+    padding-left             : 9em;
+    text-indent              : -3em;
+  }
+  p[indent="h7i0"] {
+    padding-left             : 0em;
+    text-indent              : 7em;
+  }
+  p[indent="h7i1"] {
+    padding-left             : 1em;
+    text-indent              : 6em;
+  }
+  p[indent="h7i2"] {
+    padding-left             : 2em;
+    text-indent              : 5em;
+  }
+  p[indent="h7i3"] {
+    padding-left             : 3em;
+    text-indent              : 4em;
+  }
+  p[indent="h7i4"] {
+    padding-left             : 4em;
+    text-indent              : 3em;
+  }
+  p[indent="h7i5"] {
+    padding-left             : 5em;
+    text-indent              : 2em;
+  }
+  p[indent="h7i6"] {
+    padding-left             : 6em;
+    text-indent              : 1em;
+  }
+  p[indent="h7i7"] {
+    padding-left             : 7em;
+    text-indent              : 0em;
+  }
+  p[indent="h7i8"] {
+    padding-left             : 8em;
+    text-indent              : -1em;
+  }
+  p[indent="h7i9"] {
+    padding-left             : 9em;
+    text-indent              : -2em;
+  }
+  p[indent="h8i0"] {
+    padding-left             : 0em;
+    text-indent              : 8em;
+  }
+  p[indent="h8i1"] {
+    padding-left             : 1em;
+    text-indent              : 7em;
+  }
+  p[indent="h8i2"] {
+    padding-left             : 2em;
+    text-indent              : 6em;
+  }
+  p[indent="h8i3"] {
+    padding-left             : 3em;
+    text-indent              : 5em;
+  }
+  p[indent="h8i4"] {
+    padding-left             : 4em;
+    text-indent              : 4em;
+  }
+  p[indent="h8i5"] {
+    padding-left             : 5em;
+    text-indent              : 3em;
+  }
+  p[indent="h8i6"] {
+    padding-left             : 6em;
+    text-indent              : 2em;
+  }
+  p[indent="h8i7"] {
+    padding-left             : 7em;
+    text-indent              : 1em;
+  }
+  p[indent="h8i8"] {
+    padding-left             : 8em;
+    text-indent              : 0em;
+  }
+  p[indent="h8i9"] {
+    padding-left             : 9em;
+    text-indent              : -1em;
+  }
+  p[indent="h9i0"] {
+    padding-left             : 0em;
+    text-indent              : 9em;
+  }
+  p[indent="h9i1"] {
+    padding-left             : 1em;
+    text-indent              : 8em;
+  }
+  p[indent="h9i2"] {
+    padding-left             : 2em;
+    text-indent              : 7em;
+  }
+  p[indent="h9i3"] {
+    padding-left             : 3em;
+    text-indent              : 6em;
+  }
+  p[indent="h9i4"] {
+    padding-left             : 4em;
+    text-indent              : 5em;
+  }
+  p[indent="h9i5"] {
+    padding-left             : 5em;
+    text-indent              : 4em;
+  }
+  p[indent="h9i6"] {
+    padding-left             : 6em;
+    text-indent              : 3em;
+  }
+  p[indent="h9i7"] {
+    padding-left             : 7em;
+    text-indent              : 2em;
+  }
+  p[indent="h9i8"] {
+    padding-left             : 8em;
+    text-indent              : 1em;
+  }
+  p[indent="h9i9"] {
+    padding-left             : 9em;
+    text-indent              : 0em;
+  }
+  p.spaced { white-space     : pre; }
+  p.block {
+    white-space              : pre;
+  }
+  p.group { }
+  p.alt { }
+  p.verse {
+    white-space              : pre;
+    margin-bottom            : 6px;
+  }
+  p.caption {
+    text-align               : left;
+    font-size                : 80%%%%;
+    display                  : inline;
+  }
+  p.endnote {
+    font-size                : 96%%%%;
+    line-height              : 120%%%%;
+    text-align               : left;
+    margin-right             : 15mm;
+    padding-left             : 1em;
+    text-indent              : -1em;
+  }
+  p.center {
+    text-align               : center;
+  }
+  p.bold {
+    font-weight              : bold;
+  }
+  p.bold_left {
+    font-weight              : bold;
+    text-align               : left;
+  }
+  p.centerbold {
+    text-align               : center;
+    font-weight              : bold;
+  }
+  p.em {
+    font-weight              : bold;
+    font-style               : normal;
+    background               : #FFF3B6;
+  }
+  p.small {
+    font-size                : 80%%%%;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  .tiny, .tiny_left, .tiny_right, .tiny_center {
+    font-size                : 10px;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    color                    : #EEEEEE;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.tiny { }
+  p.tiny_left {
+    margin-left              : 0px;
+    margin-right             : 0px;
+    text-align               : left;
+  }
+  p.tiny_right {
+    margin-right             : 1em;
+    text-align               : right;
+  }
+  p.tiny_center {
+    margin-left              : 0px;
+    margin-right             : 0px;
+    text-align               : center;
+  }
+  p.book_index_lev1 {
+    line-height              : 100%%%%;
+    margin-top               : 4px;
+    margin-bottom            : 1px;
+  }
+  p.book_index_lev2 {
+    line-height              : 100%%%%;
+    text-align               : left;
+    margin-left              : 3em;
+    margin-top               : 1px;
+    margin-bottom            : 3px;
+  }
+  tt {
+    font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+    background-color         : #555555;
+    color                    : #DDDDDD;
+  }
+  pre {
+    width                    : auto;
+    display                  : block;
+    clear                    : both;
+    color                    : #555555;
+  }
+  pre.codeline {
+    display                  : table;
+    clear                    : both;
+    table-layout             : fixed;
+    margin-left              : 5%%%%;
+    margin-right             : 5%%%%;
+    width                    : 90%%%%;
+    white-space              : pre-wrap;
+    border-style             : none;
+    border-radius            : 5px 5px 5px 5px;
+    box-shadow               : 0 2px 5px #AAAAAA inset;
+    margin-bottom            : 1em;
+    padding                  : 0.5em 1em;
+    page-break-inside        : avoid;
+    word-wrap                : break-word;
+    font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+    white-space              : pre;
+    white-space              : pre-wrap;
+    white-space              : -moz-pre-wrap;
+    white-space              : -o-pre-wrap;
+    background-color         : #555555;
+    color                    : #DDDDDD;
+    font-size                : 95%%%%;
+    line-height              : 100%%%%;
+  }
+  pre.codeline::before {
+    counter-reset            : linenum;
+  }
+  pre.codeline span.tr {
+    display                  : table-row;
+    counter-increment        : linenum;
+  }
+  pre.codeline span.th {
+    display                  : table-cell;
+    user-select              : none;
+    -moz-user-select         : none;
+    -webkit-user-select      : none;
+    padding                  : 0.5em 0.5em;
+  }
+  pre.codeline span.th::before {
+    content                  : counter(linenum) ".";
+    color                    : #999999;
+    text-align               : right;
+    display                  : block;
+  }
+  pre.codeline span.th {
+    width                    : 4em;
+  }
+  pre.codeline code {
+    display                  : table-cell;
+  }
+  p.code {
+    border-style             : none;
+  }
+  note { white-space         : pre; }
+  em {
+    font-weight              : bold;
+    font-style               : italic;
+  }
+  p.left,th.left,td.left {
+    text-align               : left;
+  }
+  p.small_left,th.small_left,td.small_left {
+    text-align               : left;
+    font-size                : 80%%%%;
+  }
+  p.right,th.right,td.right {
+    text-align               : right;
+  }
+  ul, li {
+    list-style-type          : none;
+    list-style               : none;
+    padding-left             : 20px;
+    font-weight              : normal;
+    line-height              : 150%%%%;
+    text-align               : left;
+    text-indent              : 0mm;
+    margin-left              : 1em;
+    margin-right             : 2em;
+    margin-top               : 3px;
+    margin-bottom            : 3px;
+  }
+  li {
+    background               : (../image_sys/bullet_09.png) no-repeat 0px 6px;
+  }
+  ul { }
+  h0, h1, h2, h3, h4, h5, h6, h7 {
+    font-weight              : bold;
+    line-height              : 120%%%%;
+    text-align               : left;
+    margin-top               : 20px;
+    margin-bottom            : 10px;
+  }
+  h4.norm, h5.norm, h6.norm, h7.norm {
+    margin-top               : 10px;
+    margin-bottom            : 0px;
+  }
+  h0 { font-size             : 125%%%%; }
+  h1 { font-size             : 120%%%%; }
+  h2 { font-size             : 115%%%%; }
+  h3 { font-size             : 110%%%%; }
+  h4 { font-size             : 105%%%%; }
+  h5 { font-size             : 100%%%%; }
+  h6 { font-size             : 100%%%%; }
+  h7 { font-size             : 100%%%%; }
+  h0, h1, h2, h3, h4, h5, h6, h7 {
+    text-shadow              : .2em .2em .3em #999999;
+  }
+  h1.i { margin-left         : 2em; }
+  h2.i { margin-left         : 3em; }
+  h3.i { margin-left         : 4em; }
+  h4.i { margin-left         : 5em; }
+  h5.i { margin-left         : 6em; }
+  h6.i { margin-left         : 7em; }
+  h7.i { margin-left         : 8em; }
+  h8.i { margin-left         : 9em; }
+  h9.i { margin-left         : 10em; }
+  .toc {
+    font-weight              : normal;
+    margin-top               : 6px;
+    margin-bottom            : 6px;
+  }
+  h0.toc {
+    margin-left              : 1em;
+    font-size                : 120%%%%;
+    line-height              : 150%%%%;
+  }
+  h1.toc {
+    margin-left              : 1em;
+    font-size                : 115%%%%;
+    line-height              : 150%%%%;
+  }
+  h2.toc {
+    margin-left              : 2em;
+    font-size                : 110%%%%;
+    line-height              : 140%%%%;
+  }
+  h3.toc {
+    margin-left              : 3em;
+    font-size                : 105%%%%;
+    line-height              : 120%%%%;
+  }
+  h4.toc {
+    margin-left              : 4em;
+    font-size                : 100%%%%;
+    line-height              : 120%%%%;
+  }
+  h5.toc {
+    margin-left              : 5em;
+    font-size                : 95%%%%;
+    line-height              : 110%%%%;
+  }
+  h6.toc {
+    margin-left              : 6em;
+    font-size                : 90%%%%;
+    line-height              : 110%%%%;
+  }
+  h7.toc {
+    margin-left              : 7em;
+    font-size                : 85%%%%;
+    line-height              : 100%%%%;
+  }
+  .subtoc {
+    margin-right             : 34%%%%;
+    font-weight              : normal;
+  }
+  h5.subtoc {
+    margin-left              : 2em;
+    font-size                : 80%%%%;
+    margin-top               : 2px;
+    margin-bottom            : 2px;
+  }
+  h6.subtoc {
+    margin-left              : 3em;
+    font-size                : 75%%%%;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+  }
+  h7.subtoc {
+    margin-left              : 4em;
+    font-size                : 70%%%%;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+  }
+  hr {
+    display                  : block;
+    height                   : 1px;
+    width                    : 100%%%%;
+    border                   : 0;
+    border-top               : 1px solid #AAAAAA;
+    border-color             : #AAAAAA
+    background-color         : #AAAAAA
+    margin-left              : 0%%%%;
+    margin-right             : 0em;
+    margin-top               : 0.5em;
+    margin-bottom            : 0.5em;
+    padding                  : 0;
+  }
+</style>
+</head>
+<body lang="en" xml:lang="en">
+┃",
+    conf.http_host,
+   );
+  }
+  {
+    table = format(q"┃
+<table summary="band" border="0" cellpadding="2" cellspacing="0">
+<tr><td width="20%%%%">
+ <table summary="home button / home information" border="0" cellpadding="2" cellspacing="0">
+ <tr><td align="left">
+  %s
+ </td></tr>
+ </table>
+</td>
+<td>
+</td></tr>
+</table>
+┃");
+  }
+  {
+    string post_value(string field_name, string type="box", string set="on") {
+      string val = "";
+      switch (type) {
+      case "field":
+        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
+          ? cgi.post[field_name]
+          : (field_name in cgi.get)
+            ? cgi.get[field_name]
+            : "");
+        val = tf.search_text_area;
+        break;
+      case "box": // generic for checkbox or radio; checkbox set == "on" radio set == "name set"
+        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
+          ? (cgi.post[field_name]  == set ? "checked" : "off")
+          : (field_name in cgi.get)
+            ? (cgi.get[field_name] == set ? "checked" : "off")
+            :                               "off");
+        break;
+      case "radio": // used generic bo
+        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
+          ? (cgi.post[field_name]  == set ? "checked" : "off")
+          : (field_name in cgi.get)
+            ? (cgi.get[field_name] == set ? "checked" : "off")
+            :                               "checked");
+        break;
+      case "checkbox": // used generic bo
+        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
+          ? (cgi.post[field_name]  == set ? "checked" : "off")
+          : (field_name in cgi.get)
+            ? (cgi.get[field_name] == set ? "checked" : "off")
+            :                               "checked");
+        break;
+      default:
+      }
+      return val;
+    }
+    string the_can(string fv) {
+      string show_the_can = post_value("url");
+      string _the_can = "";
+      if (show_the_can == "checked") {
+        tf = text_fields;
+        string method_get_url            = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ environment.get("QUERY_STRING", "");
+        string method_post_url_construct = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ tf.canned_query;
+        // assert(method_get_url == environment.get("HTTP_REFERER", conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ conf.query_string));
+        if (conf.request_method == "POST") {
+          _the_can =
+            "<font size=\"2\" color=\"#666666\">"
+            ~ "POST:&nbsp;"
+            ~ "<a href=\""
+            ~ method_post_url_construct
+            ~ "\">"
+            ~ method_post_url_construct
+            ~ "</a></font>"
+            ~ "<br>";
+        } else if (conf.request_method == "GET") {
+          _the_can =
+            "<font size=\"2\" color=\"#666666\">"
+            ~ "GET:&nbsp;&nbsp;"
+            ~ "<a href=\""
+            ~ method_get_url
+            ~ "\">"
+            ~ method_get_url
+            ~ "</a></font>";
+        }
+        conf.http_url = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ tf.canned_query;
+      }
+      return _the_can;
+    }
+    string provide_tip() {
+      string searched_tip = post_value("se");
+      string tip = "";
+      if (searched_tip == "checked") {
+        string search_field = post_value("sf", "field");
+        tf = text_fields;
+        tip = format(q"┃
+<font size="2" color="#666666">
+<b>database:</b> <font size="2" color="#004000">%%s</font>; <b>selected view:</b> <font size="2" color="#004000">index</font>
+<b>search string:</b> %%s %%s %%s %%s %%s %%s<br>
+%%s %%s %%s %%s %%s %%s
+</font>
+┃",
+          cv.db_selected,
+          (tf.text.empty   ? "" : "\"text:   <font size=\"2\" color=\"#004000\">" ~ tf.text   ~ "</font>; "),
+          (tf.title.empty  ? "" : "\"title:  <font size=\"2\" color=\"#004000\">" ~ tf.title  ~ "</font>; "),
+          (tf.author.empty ? "" : "\"author: <font size=\"2\" color=\"#004000\">" ~ tf.author ~ "</font>; "),
+          (tf.date.empty   ? "" : "\"date    <font size=\"2\" color=\"#004000\">" ~ tf.date   ~ "</font>; "),
+          (tf.uid.empty    ? "" : "\"uid:    <font size=\"2\" color=\"#004000\">" ~ tf.uid    ~ "</font>; "),
+          (tf.fn.empty     ? "" : "\"fn:     <font size=\"2\" color=\"#004000\">" ~ tf.fn     ~ "</font>; "),
+          (tf.text.empty   ? "" :  "text:    <font size=\"2\" color=\"#004000\">" ~ tf.text   ~ "</font><br>"),
+          (tf.title.empty  ? "" : "title:    <font size=\"2\" color=\"#004000\">" ~ tf.title  ~ "</font><br>"),
+          (tf.author.empty ? "" :  "author:  <font size=\"2\" color=\"#004000\">" ~ tf.author ~ "</font><br>"),
+          (tf.date.empty   ? "" :  "date:    <font size=\"2\" color=\"#004000\">" ~ tf.date   ~ "</font><br>"),
+          (tf.uid.empty    ? "" : "\"uid:    <font size=\"2\" color=\"#004000\">" ~ tf.uid    ~ "</font>; "),
+          (tf.fn.empty     ? "" : "\"fn:     <font size=\"2\" color=\"#004000\">" ~ tf.fn     ~ "</font>; "),
+        );
+      }
+      return tip;
+    }
+    form = format(q"┃
+<form action="%%s" id="SubmitForm" method="post" accept-charset="UTF-8">
+  <table cellpadding="2">
+  <tr><td valign=\"top\">
+      <textarea id="find" name="sf" type="text" rows="6" cols="40" maxlength="256" wrap="virtual">%%s</textarea>
+  </td>
+  <td valign=\"top\">
+    %%s
+    %%s
+    %%s
+  </td></tr></table>
+  <td valign=\"top\"><tr><td>
+    <font size="2" color="#%s">
+    <input type="hidden" name="db" value="%%s">
+    <input type="submit" value="SiSU search">
+    <input type="radio" name="rt" id="results_type_index" value="idx" %%s> index
+    <input type="radio" name="rt" id="results_type_text" value="txt" %%s> text / grep;
+    match limit:
+    <input type="radio" name="sml" id="sql_match_limit_1000" value="1000" %%s> 1,000
+    <input type="radio" name="sml" id="sql_match_limit_2500" value="2500" %%s> 2,500
+    <br>
+      <input type="checkbox" name="ec" %%s> echo query
+      <input type="checkbox" name="url" %%s> search url
+      <input type="checkbox" name="se" %%s> searched
+      <input type="checkbox" name="sql" %%s> sql statement
+      <input type="hidden" name="smo" value="0">
+    <br>
+    </font>
+  </td></tr>
+  </table>
+</form>
+┃",
+      "%s",
+      (post_value("ec") == "checked") ? post_value("sf", "field") : "",
+      provide_tip,
+      search_note,
+      the_can(post_value("sf", "field")),
+      cv.db_selected,
+      post_value("rt",  "box", "idx"),
+      post_value("rt",  "box", "txt"),
+      post_value("sml", "box", "1000"),
+      post_value("sml", "box", "2500"),
+      post_value("ec"),
+      post_value("url"),
+      post_value("se"),
+      post_value("sql"),
+    );
+    {
+      string set_value(string field_name, string default_val) {
+        string val;
+        if (field_name in cgi.post) {
+          val = cgi.post[field_name];
+        } else if (field_name in cgi.get) {
+          val = cgi.get[field_name];
+        } else { val = default_val; }
+        return val;
+      }
+      bool set_bool(string field_name) {
+        bool val;
+        if (field_name in cgi.post
+        && cgi.post[field_name] == "on") {
+          val = true;
+        } else if (field_name in cgi.get
+        && cgi.get[field_name] == "on") {
+          val = true;
+        } else { val = false; }
+        return val;
+      }
+      cv.db_selected      = set_value("selected_db", "%s"); // selected_db_name == db (spine.search.db or whatever)
+      cv.sql_match_limit  = set_value("sml",         "1000");
+      cv.sql_match_offset = set_value("smo",         "0");
+      cv.search_text      = set_value("sf",          "");
+      cv.results_type     = set_value("rt",          "idx");
+      cv.checked_echo     = set_bool("ec");
+      cv.checked_stats    = set_bool("sts");
+      cv.checked_url      = set_bool("url");
+      cv.checked_searched = set_bool("se");
+      cv.checked_tip      = set_bool("tip");
+      cv.checked_sql      = set_bool("sql");
+      tf = text_fields;
+    }
+  }
+  {
+    cgi.write(header);
+    cgi.write(table);
+    cgi.write(form);
+    // cgi.write(previous_next);
+    { // debug environment
+      // foreach (k, d; environment.toAA) {
+      //   cgi.write(k ~ ": " ~ d ~ "<br>");
+      // }
+    }
+    { // debug cgi info
+      // cgi.write("db_selected: "         ~ cv.db_selected ~ "<br>\n");
+      // cgi.write("search_text: "         ~ cv.search_text ~ "<br>\n");
+      // cgi.write("sql_match_limit: "     ~ cv.sql_match_limit ~ ";\n");
+      // cgi.write("sql_match_offset: "    ~ cv.sql_match_offset ~ ";\n");
+      // cgi.write("results_type: "        ~ cv.results_type ~ "<br>\n");
+      // cgi.write("cv.checked_echo: "     ~ (cv.checked_echo ? "checked" : "off") ~ "; \n");
+      // cgi.write("cv.checked_stats: "    ~ (cv.checked_stats ? "checked" : "off") ~ "; \n");
+      // cgi.write("cv.checked_url: "      ~ (cv.checked_url ? "checked" : "off") ~ "; \n");
+      // cgi.write("cv.checked_searched: " ~ (cv.checked_searched ? "checked" : "off") ~ ";<br>\n");
+      // cgi.write("cv.checked_tip: "      ~ (cv.checked_tip ? "checked" : "off") ~ "; \n");
+      // cgi.write("cv.checked_sql: "      ~ (cv.checked_sql ? "checked" : "off") ~ "<br>\n");
+    }
+  }
+  auto db = Database(conf.db_path ~ cv.db_selected);
+  {
+    uint sql_match_offset_counter(T)(T cv) {
+      sql_match_offset_count += cv.sql_match_limit.to!uint;
+      return sql_match_offset_count;
+    }
+    void sql_search_query() {
+      string highlight_text_matched(string _txt, string search_field) {
+        string _mark_open   = "┤";
+        string _mark_close  = "├";
+        string _span_match = "<span class=\"match\">";
+        string _span_close  = "</span>";
+        string _sf_str      = search_field.strip.split("%%20").join(" ").strip;
+        string[] _sf_arr    = _sf_str.split(regex(r"\s+AND\s+|\s+OR\s+"));
+        auto rgx_url        = regex(r"<a href=[^>]+?>");
+        foreach (_sf; _sf_arr) {
+          auto rgx_matched_text = regex(_sf, "i");
+          auto rgx_marked_pair  = regex(r"┤(?P<keep>" ~ _sf ~ ")├", "i");
+          if (auto m = _txt.matchFirst(rgx_url)) {
+            _txt = replaceAll!(m =>
+                _mark_open
+                ~  m.captures[0]
+                ~ _mark_close
+              )(_txt, rgx_matched_text);
+            _txt = replaceAll!(m =>
+                replaceAll!(u =>
+                  u["keep"]
+                )(m.hit, rgx_marked_pair)
+              )(_txt, rgx_url);
+            _txt = replaceAll!(m =>
+                _span_match
+                ~  m["keep"]
+                ~ _span_close
+              )(_txt, rgx_marked_pair);
+          } else {
+            _txt = replaceAll!(m =>
+                _span_match
+                ~  m.captures[0]
+                ~ _span_close
+              )(_txt, rgx_matched_text);
+          }
+        }
+        return _txt;
+      }
+      string select_field_like(string db_field, string search_field) {
+        string where_ = "";
+        if (!(search_field.empty)) {
+          string _sf = search_field.strip.split("%%20").join(" ");
+          if (_sf.match(r" OR ")) {
+            _sf = _sf.split(" OR ").join("%%' OR " ~ db_field ~ " LIKE '%%");
+          }
+          if (_sf.match(r" AND ")) {
+            _sf = _sf.split(" AND ").join("%%' AND " ~ db_field ~ " LIKE '%%");
+          }
+          _sf = "( " ~ db_field ~ " LIKE\n  '%%" ~ _sf ~ "%%' )";
+          where_ ~= format(q"┃
+  %%s
+┃",
+            _sf
+          );
+        }
+        return where_;
+      }
+      string[] _fields;
+      _fields ~= select_field_like("doc_objects.clean",                         tf.text);
+      _fields ~= select_field_like("metadata_and_text.title",                   tf.title);
+      _fields ~= select_field_like("metadata_and_text.creator_author",          tf.author);
+      _fields ~= select_field_like("metadata_and_text.uid",                     tf.uid);
+      _fields ~= select_field_like("metadata_and_text.src_filename_base",       tf.fn);
+      _fields ~= select_field_like("metadata_and_text.src_filename_base",       tf.src_filename_base);
+      _fields ~= select_field_like("metadata_and_text.language_document_char",  tf.language);
+      _fields ~= select_field_like("metadata_and_text.date_published",          tf.date);
+      _fields ~= select_field_like("metadata_and_text.classify_keywords",       tf.keywords);
+      _fields ~= select_field_like("metadata_and_text.classify_topic_register", tf.topic_register);
+      string[] fields;
+      foreach (f; _fields) {
+        if (!(f.empty)) { fields ~= f; }
+      }
+      string fields_str = "";
+      fields_str ~= fields.join(" AND ");
+      sql_select.the_body ~= format(q"┃
+SELECT
+  metadata_and_text.uid,
+  metadata_and_text.title,
+  metadata_and_text.creator_author_last_first,
+  metadata_and_text.creator_author,
+  metadata_and_text.src_filename_base,
+  metadata_and_text.language_document_char,
+  metadata_and_text.date_published,
+  metadata_and_text.classify_keywords,
+  metadata_and_text.classify_topic_register,
+  doc_objects.body,
+  doc_objects.seg_name,
+  doc_objects.ocn,
+  metadata_and_text.uid
+FROM
+  doc_objects,
+  metadata_and_text
+WHERE (
+  %%s
+  )
+AND
+  doc_objects.uid_metadata_and_text = metadata_and_text.uid
+ORDER BY
+  metadata_and_text.creator_author_last_first,
+  metadata_and_text.date_published DESC,
+  metadata_and_text.title,
+  metadata_and_text.language_document_char,
+  metadata_and_text.src_filename_base,
+  doc_objects.ocn
+LIMIT %%s OFFSET %%s
+;┃",
+        fields_str,
+        cv.sql_match_limit,
+        cv.sql_match_offset,
+      );
+      (cv.checked_sql)
+      ? cgi.write(previous_next
+          ~ "<hr><font size=\"2\" color=\"#666666\">"
+          ~ sql_select.the_body.strip.split("\n  ").join(" ").split("\n").join("<br>")
+          ~ "</font>\n"
+        )
+      : "";
+      cgi.write(previous_next);
+      auto select_query_results = db.execute(sql_select.the_body).cached;
+      string _old_uid = "";
+      if (!select_query_results.empty) {
+        string _date_published = "0000";
+        string _close_para = "";
+        string _matched_ocn_open = "";
+        foreach (idx, row; select_query_results) {
+          if (row["uid"].as!string != _old_uid) {
+            _close_para = (idx == 1) ? "" : "</p>";
+            _matched_ocn_open = (idx == 1) ? "" : "<p class=\"matched_ocn\">";
+            _old_uid = row["uid"].as!string;
+            _date_published = (row["date_published"].as!string.match(regex(r"^([0-9]{4})")))
+            ? row["date_published"].as!string : "0000"; // used in regex that breaks if no match
+            auto m = _date_published.match(regex(r"^([0-9]{4})"));
+            string _date = (m.hit == "0000") ? "(year?) " : "(" ~ m.hit ~ ") ";
+            cgi.write(
+              _close_para
+              ~ "<hr><div class=\"publication\">"
+                ~ "<p class=\"publication\"><a href=\""
+                  ~ "https://" ~ conf.http_host ~ conf.doc_collection_subroot ~ "/"
+                  ~ row["language_document_char"].as!string ~ "/html/"
+                  ~ row["src_filename_base"].as!string ~ "/"
+                  ~ "toc.html"
+                ~ "\">\""
+                  ~ row["title"].as!string ~ "\""
+                ~ "</a> "
+                ~ _date
+                ~ "[" ~ row["language_document_char"].as!string ~ "] "
+                ~ row["creator_author_last_first"].as!string
+                ~ " "
+                ~ show_matched_objects(row["src_filename_base"].as!string)
+                ~ "</p>"
+              ~ "</div>"
+            );
+          }
+          if (cv.results_type == "txt") {
+            if (row["ocn"].as!string != "0") {
+              cgi.write(
+                "<div class=\"flex-container\">"
+                ~ "<div class=\"textview_ocn\" style=\"flex: 0 0 1.2em\">"
+                  ~ "<p class=\"ocn_is\"><a href=\""
+                    ~ "https://" ~ conf.http_host ~ conf.doc_collection_subroot ~ "/"
+                    ~ row["language_document_char"].as!string ~ "/html/"
+                    ~ row["src_filename_base"].as!string ~ "/"
+                    ~ row["seg_name"].as!string ~ ".html#" ~ row["ocn"].as!string
+                  ~ "\">"
+                    ~ row["ocn"].as!string
+                  ~ "</a>:</p>"
+                ~ "</div>"
+                ~ "<div class=\"textview_found\">"
+                  ~ highlight_text_matched(row["body"].as!string, tf.text)
+                ~ "</div>"
+                ~ "</div>"
+              );
+            } else {
+              cgi.write(
+                "<div class=\"flex-container\">"
+                ~ "<div class=\"textview_ocn\" style=\"flex: 0 0 1.2em\">"
+                  ~ "<p class=\"ocn_is\"><a href=\""
+                    ~ "https://" ~ conf.http_host ~ conf.doc_collection_subroot ~ "/"
+                    ~ row["language_document_char"].as!string ~ "/html/"
+                    ~ row["src_filename_base"].as!string ~ "/toc.html"
+                  ~ "\">"
+                    ~ row["ocn"].as!string
+                  ~ "</a>:</p>"
+                ~ "</div>"
+                ~ "<div class=\"textview_found\">"
+                  ~ highlight_text_matched(row["body"].as!string, tf.text)
+                ~ "</div>"
+                ~ "</div>"
+              );
+            }
+          } else {
+            if (row["ocn"].as!string != "0") {
+              cgi.write(
+                _matched_ocn_open
+                ~ "<a href=\""
+                  ~ "https://" ~ conf.http_host ~ conf.doc_collection_subroot ~ "/"
+                  ~ row["language_document_char"].as!string ~ "/html/"
+                  ~ row["src_filename_base"].as!string ~ "/"
+                  ~ row["seg_name"].as!string ~ ".html#" ~ row["ocn"].as!string
+                ~ "\">"
+                  ~ row["ocn"].as!string
+                ~ "</a>, "
+              );
+            } else {
+              cgi.write(
+                _matched_ocn_open
+                ~ "<a href=\""
+                  ~ "https://" ~ conf.http_host ~ conf.doc_collection_subroot ~ "/"
+                  ~ row["language_document_char"].as!string ~ "/html/"
+                  ~ row["src_filename_base"].as!string ~ "/toc.html"
+                ~ "\">"
+                  ~ row["ocn"].as!string
+                ~ "</a>, "
+              );
+            }
+            _matched_ocn_open = "";
+          }
+        }
+        cgi.write( previous_next);
+
+      } else { // offset_not_beyond_limit = false;
+        cgi.write("select_query_results empty<p>\n");
+      }
+      cgi.write("<br><p class=\"center\"><a href=\"https://sisudoc.org/\" target=\"_top\">
+<label for=\"find\"><b>≅ SiSU spine</b></label>
+</a> <label for=\"find\">(generated) search form</label>
+<br><a href=\"https://git.sisudoc.org/\" target=\"_top\">
+  git</a>
+</p>
+");
+    }
+    sql_search_query;
+  }
+  {
+    db.close;
+  }
+  {
+    string tail = format(q"┃
+</body>
+┃");
+    cgi.write(tail);
+  }
+}
+mixin GenericMain!cgi_function_intro;
+≓",
+  get_doc_collection_subroot(make_and_meta_struct.conf.output_path),
+  make_and_meta_struct.conf.output_path ~ "/sqlite/",
+  _sqlite_db_fn,
+  (opt_action.cgi_search_title.empty)
+    ? make_and_meta_struct.conf.w_srv_cgi_search_form_title
+    : opt_action.cgi_search_title,
+  (opt_action.css_theme_default) ? "FFFFFF" : "000000",
+  (opt_action.css_theme_default) ? "000000" : "CCCCCC",
+  (opt_action.css_theme_default) ? "FFFFFF" : "000000",
+  (opt_action.css_theme_default) ? "FFFFFF" : "000000",
+  (opt_action.css_theme_default) ? "003399" : "FFFFFF",
+  (opt_action.css_theme_default) ? "003399" : "999999",
+  "000000",
+  (opt_action.css_theme_default) ? "F9F9AA" : "555555",
+  (opt_action.css_theme_default) ? "777777" : "BBBBBB",
+  (opt_action.css_theme_default) ? "32CD32" : "9ACD32",
+  (opt_action.css_theme_default) ? "777777" : "BBBBBB",
+  (opt_action.css_theme_default) ? "FFFFFF" : "000000",
+  (opt_action.css_theme_default) ? "003399" : "888888",
+  (opt_action.css_theme_default) ? "000000" : "FFFFFF",
+  (opt_action.css_theme_default) ? "FFFFFF" : "777777",
+  (opt_action.css_theme_default) ? "000000" : "FFFF48",
+  (opt_action.css_theme_default) ? "FFFF48" : "777748",
+  (opt_action.cgi_search_title.empty)
+    ? make_and_meta_struct.conf.w_srv_cgi_search_form_title
+    : opt_action.cgi_search_title,
+  (opt_action.css_theme_default) ? "222222" : "AAAAAA",
+  _cgi_search_script,
+  _sqlite_db_fn,
+).strip;
+    string _cgi_path = (opt_action.output_dir_set.length > 0)
+    ? opt_action.output_dir_set
+    : (make_and_meta_struct.conf.w_srv_data_root_path.length > 0)
+      ? make_and_meta_struct.conf.w_srv_data_root_path
+      : "";
+    auto pth_sqlite_cgi = spinePathsSQLiteCGI!()(_cgi_search_script_raw_fn_d, _cgi_search_script, _cgi_path);
+    { // cgi-bin search form src d
+      try {
+        if (!exists(pth_sqlite_cgi.src)) {
+          pth_sqlite_cgi.src.mkdirRecurse;
+        }
+        if (!exists(pth_sqlite_cgi.cgi_bin)) {
+          pth_sqlite_cgi.cgi_bin.mkdirRecurse;
+        }
+        auto f = File(pth_sqlite_cgi.search_form_path_out, "w");
+        f.write(the_cgi_search_form);
+        // foreach (o; metadata_) {
+        //   f.writeln(o);
+        // }
+      } catch (ErrnoException ex) {
+        // Handle error
+      }
+      // if (!(opt_action.quiet)) {
+      //   writeln(" ", pth_sqlite_cgi.search_form);
+      // }
+    }
+    string the_dub_sdl = format(q"≓
+name "spine_cgi_sqlite_search"
+description "spine cgi sqlite search"
+authors "Ralph Amissah"
+copyright "Copyright © 2022, Ralph Amissah"
+license "GPL-3.0+"
+dependency "d2sqlite3" version="%s"
+dependency "arsd-official:cgi" version="%s"
+  subConfiguration "arsd-official:cgi" "cgi"
+targetType "executable"
+targetPath "./cgi-bin"
+mainSourceFile "%s"
+configuration "default" {
+  targetType "executable"
+  targetName "%s"
+  postGenerateCommands "notify-send -t 0 'D executable ready' 'spine cgi sqlite search d'"
+}
+≓",
+  "~>0.18.3", // d2sqlite3 dependency version
+  "~>7.2.0",  // arsd-official:cgi dependency version
+  "src/" ~ _cgi_search_script_raw_fn_d,
+  _cgi_search_script
+).strip;
+    { // dub.sdl
+      try {
+        auto f = File(pth_sqlite_cgi.dub_sdl_path_out, "w");
+        f.write(the_dub_sdl);
+        // foreach (o; metadata_) {
+        //   f.writeln(o);
+        // }
+      } catch (ErrnoException ex) {
+        // Handle error
+      }
+    }
+    // { // get cgi.d
+    //   // import std.net.curl, std.stdio;
+    //   // char[] cgi_d;
+    //   // if (opt_action.allow_downloads) {
+    //   //   try {
+    //   //     cgi_d = get!HTTP("https://raw.githubusercontent.com/adamdruppe/arsd/master/cgi.d");
+    //   //   } catch (ErrnoException ex) {
+    //   //     // Handle error
+    //   //     // CurlCode perform(ThrowOnError throwOnError = Yes.throwOnError);
+    //   //     CurlCode perform(ThrowOnError throwOnError = No.throwOnError);
+    //   //   }
+    //   //   if (cgi_d && cgi_d.length > 0) {
+    //   //     try {
+    //   //       auto f = File(pth_sqlite_cgi.cgi_d_path_out, "w");
+    //   //       f.write(cgi_d);
+    //   //     } catch (ErrnoException ex) {
+    //   //       // Handle error
+    //   //     }
+    //   //   }
+    //   // }
+    // }
+  }
+}
diff --git a/src/sisudoc/io_out/create_zip_file.d b/src/sisudoc/io_out/create_zip_file.d
new file mode 100644
index 0000000..36863eb
--- /dev/null
+++ b/src/sisudoc/io_out/create_zip_file.d
@@ -0,0 +1,68 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.create_zip_file;
+@safe:
+template createZipFile() {
+  import
+    std.file,
+    std.outbuffer,
+    std.string,
+    std.zip;
+  void createZipFile(
+    string zip_file_name,
+    void[] compressed_zip_data,
+  ) {
+    try {
+      write(zip_file_name, compressed_zip_data);
+    } catch (ZipException ex) {
+      // Handle Errors
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/defaults.d b/src/sisudoc/io_out/defaults.d
new file mode 100644
index 0000000..be7c122
--- /dev/null
+++ b/src/sisudoc/io_out/defaults.d
@@ -0,0 +1,186 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  default settings
++/
+module sisudoc.io_out.defaults;
+@safe:
+
+template InternalMarkup() {
+  import std.array;
+  static struct InlineMarkup {
+    string en_a_o = "【";      string en_a_c = "】";
+    string en_b_o = "〖";      string en_b_c = "〗";
+    string quote_o = "“";      string quote_c = "”";
+    string ff_i = "⑆";         string ff_o = "┨";         string ff_c = "┣"; // fontface
+    string lnk_o = "┥";        string lnk_c = "┝";
+    string url_o = "┤";        string url_c = "├";
+    string emph = "*";
+    string bold = "!";
+    string italic = "/";
+    string underscore = "_";
+    string superscript = "^";
+    string subscript = ",";
+    string mono = "■";
+    string cite = "‖";
+    string mark_internal_site_lnk = "¤";
+    string nbsp                   = "░";
+    string br_line                = "┘";
+    string br_line_inline         = "┙";
+    string br_line_spaced         = "┚";
+    string br_obj                 = "break_obj";
+    string br_page_line           = "┼";
+    string br_page                = "┿";
+    string br_page_new            = "╂";
+    string tc_s                   = "┊";
+    string tc_o                   = "┏";
+    string tc_c                   = "┚";
+    string tc_p                   = "┆";
+    string img                    = "☼";
+    string sep                    = "␣"; // "~";"␣"; // "~";
+    string uid_sep                = ":";
+    string on_o  = "「";       string on_c  = "」";
+    string mk_bullet               = "● ";
+    static string indent_by_spaces_provided(int indent, string _indent_spaces ="░░") {
+      _indent_spaces = replicate(_indent_spaces, indent);
+      return _indent_spaces;
+    }
+    static string repeat_character_by_number_provided(C,N)(C _character ="-", N number=10) {
+      _character = replicate(_character, number);
+      return _character;
+    }
+  }
+}
+template spineLanguageCodes() {
+  /+ language codes +/
+  struct Lang {
+    static string[string][string] codes() {
+      auto _lang_codes = [
+        "am":    [ "c": "am",    "n": "Amharic",           "t": "Amharic",                   "xlp": "amharic"      ],
+        "bg":    [ "c": "bg",    "n": "Bulgarian",         "t": "Български (Bəlgarski)",     "xlp": "bulgarian"    ],
+        "bn":    [ "c": "bn",    "n": "Bengali",           "t": "Bengali",                   "xlp": "bengali"      ],
+        "br":    [ "c": "br",    "n": "Breton",            "t": "Breton",                    "xlp": "breton"       ],
+        "ca":    [ "c": "ca",    "n": "Catalan",           "t": "catalan",                   "xlp": "catalan"      ],
+        "cs":    [ "c": "cs",    "n": "Czech",             "t": "česky",                     "xlp": "czech"        ],
+        "cy":    [ "c": "cy",    "n": "Welsh",             "t": "Welsh",                     "xlp": "welsh"        ],
+        "da":    [ "c": "da",    "n": "Danish",            "t": "dansk",                     "xlp": "danish"       ],
+        "de":    [ "c": "de",    "n": "German",            "t": "Deutsch",                   "xlp": "german"       ],
+        "el":    [ "c": "el",    "n": "Greek",             "t": "Ελληνικά (Ellinika)",       "xlp": "greek"        ],
+        "en":    [ "c": "en",    "n": "English",           "t": "English",                   "xlp": "english"      ],
+        "eo":    [ "c": "eo",    "n": "Esperanto",         "t": "Esperanto",                 "xlp": "esperanto"    ],
+        "es":    [ "c": "es",    "n": "Spanish",           "t": "español",                   "xlp": "spanish"      ],
+        "et":    [ "c": "et",    "n": "Estonian",          "t": "Estonian",                  "xlp": "estonian"     ],
+        "eu":    [ "c": "eu",    "n": "Basque",            "t": "basque",                    "xlp": "basque"       ],
+        "fi":    [ "c": "fi",    "n": "Finnish",           "t": "suomi",                     "xlp": "finnish"      ],
+        "fr":    [ "c": "fr",    "n": "French",            "t": "français",                  "xlp": "french"       ],
+        "ga":    [ "c": "ga",    "n": "Irish",             "t": "Irish",                     "xlp": "irish"        ],
+        "gl":    [ "c": "gl",    "n": "Galician",          "t": "Galician",                  "xlp": "galician"     ],
+        "he":    [ "c": "he",    "n": "Hebrew",            "t": "Hebrew",                    "xlp": "hebrew"       ],
+        "hi":    [ "c": "hi",    "n": "Hindi",             "t": "Hindi",                     "xlp": "hindi"        ],
+        "hr":    [ "c": "hr",    "n": "Croatian",          "t": "Croatian",                  "xlp": "croatian"     ],
+        "hy":    [ "c": "hy",    "n": "Armenian",          "t": "Armenian",                  "xlp": "armenian"     ],
+        "ia":    [ "c": "ia",    "n": "Interlingua",       "t": "Interlingua",               "xlp": "interlingua"  ],
+        "is":    [ "c": "is",    "n": "Icelandic",         "t": "Icelandic",                 "xlp": "icelandic"    ],
+        "it":    [ "c": "it",    "n": "Italian",           "t": "Italiano",                  "xlp": "italian"      ],
+        "ja":    [ "c": "ja",    "n": "Japanese",          "t": "日本語 (Nihongo)",         "xlp": "japanese"      ],
+        "ko":    [ "c": "ko",    "n": "Korean",            "t": "Korean",                    "xlp": "korean"       ],
+        "la":    [ "c": "la",    "n": "Latin",             "t": "Latin",                     "xlp": "latin"        ],
+        "lo":    [ "c": "lo",    "n": "Lao",               "t": "Lao",                       "xlp": "lao"          ],
+        "lt":    [ "c": "lt",    "n": "Lithuanian",        "t": "Lithuanian",                "xlp": "lithuanian"   ],
+        "lv":    [ "c": "lv",    "n": "Latvian",           "t": "Latvian",                   "xlp": "latvian"      ],
+        "ml":    [ "c": "ml",    "n": "Malayalam",         "t": "Malayalam",                 "xlp": "malayalam"    ],
+        "mr":    [ "c": "mr",    "n": "Marathi",           "t": "Marathi",                   "xlp": "marathi"      ],
+        "nl":    [ "c": "nl",    "n": "Dutch",             "t": "Nederlands",                "xlp": "dutch"        ],
+        "no":    [ "c": "no",    "n": "Norwegian",         "t": "norsk",                     "xlp": "norsk"        ],
+        "nn":    [ "c": "nn",    "n": "Norwegian Nynorsk", "t": "nynorsk",                   "xlp": "nynorsk"      ],
+        "oc":    [ "c": "oc",    "n": "Occitan",           "t": "Occitan",                   "xlp": "occitan"      ],
+        "pl":    [ "c": "pl",    "n": "Polish",            "t": "polski",                    "xlp": "polish"       ],
+        "pt":    [ "c": "pt",    "n": "Portuguese",        "t": "Português",                 "xlp": "portuges"     ],
+        "pt_BR": [ "c": "pt_BR", "n": "Portuguese Brazil", "t": "Brazilian Português",       "xlp": "brazilian"    ],
+        "ro":    [ "c": "ro",    "n": "Romanian",          "t": "română",                    "xlp": "romanian"     ],
+        "ru":    [ "c": "ru",    "n": "Russian",           "t": "Русский (Russkij)",         "xlp": "russian"      ],
+        "sa":    [ "c": "sa",    "n": "Sanskrit",          "t": "Sanskrit",                  "xlp": "sanskrit"     ],
+        "se":    [ "c": "se",    "n": "Sami",              "t": "Samin",                     "xlp": "samin"        ],
+        "sk":    [ "c": "sk",    "n": "Slovak",            "t": "slovensky",                 "xlp": "slovak"       ],
+        "sl":    [ "c": "sl",    "n": "Slovenian",         "t": "Slovenian",                 "xlp": "slovenian"    ],
+        "sq":    [ "c": "sq",    "n": "Albanian",          "t": "Albanian",                  "xlp": "albanian"     ],
+        "sr":    [ "c": "sr",    "n": "Serbian",           "t": "Serbian",                   "xlp": "serbian"      ],
+        "sv":    [ "c": "sv",    "n": "Swedish",           "t": "svenska",                   "xlp": "swedish"      ],
+        "ta":    [ "c": "ta",    "n": "Tamil",             "t": "Tamil",                     "xlp": "tamil"        ],
+        "te":    [ "c": "te",    "n": "Telugu",            "t": "Telugu",                    "xlp": "telugu"       ],
+        "th":    [ "c": "th",    "n": "Thai",              "t": "Thai",                      "xlp": "thai"         ],
+        "tk":    [ "c": "tk",    "n": "Turkmen",           "t": "Turkmen",                   "xlp": "turkmen"      ],
+        "tr":    [ "c": "tr",    "n": "Turkish",           "t": "Türkçe",                    "xlp": "turkish"      ],
+        "uk":    [ "c": "uk",    "n": "Ukranian",          "t": "українська (ukrajins\"ka)", "xlp": "ukrainian"    ],
+        "ur":    [ "c": "ur",    "n": "Urdu",              "t": "Urdu",                      "xlp": "urdu"         ],
+        "us":    [ "c": "en",    "n": "English (American)","t": "English",                   "xlp": "english"      ],
+        "vi":    [ "c": "vi",    "n": "Vietnamese",        "t": "Vietnamese",                "xlp": "vietnamese"   ],
+        "zh":    [ "c": "zh",    "n": "Chinese",           "t": "中文",                     "xlp": "chinese"       ],
+        "en":    [ "c": "en",    "n": "English",           "t": "English",                   "xlp": "english"      ],
+        "xx":    [ "c": "xx",    "n": "Default",           "t": "English",                   "xlp": "english"      ],
+      ];
+      return _lang_codes;
+    }
+    static string[] code_arr_ptr() {
+      string[] _lang_codes = ["am", "bg", "bn", "br", "ca", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fi", "fr", "ga", "gl", "he", "hi", "hr", "hy", "ia", "is", "it", "ja", "ko", "la", "lo", "lt", "lv", "ml", "mr", "nl", "no", "nn", "oc", "pl", "pt", "pt_BR", "ro", "ru", "sa", "se", "sk", "sl", "sq", "sr", "sv", "ta", "te", "th", "tk", "tr", "uk", "ur", "us", "vi", "zh", "en", "xx",];
+      return _lang_codes;
+    }
+    static string[] code_arr() {
+      string[] _lang_codes = ["am", "bg", "bn", "br", "ca", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fi", "fr", "ga", "gl", "he", "hi", "hr", "hy", "ia", "is", "it", "ja", "ko", "la", "lo", "lt", "lv", "ml", "mr", "nl", "no", "nn", "oc", "pl", "pt", "pt_BR", "ro", "ru", "sa", "se", "sk", "sl", "sq", "sr", "sv", "ta", "te", "th", "tk", "tr", "uk", "ur", "vi", "zh"];
+      return _lang_codes;
+    }
+    static auto codes_() {
+      return "(" ~ join(code_arr,"|") ~ ")";
+    }
+    static auto codes_regex() {
+      return regex(codes_);
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/epub3.d b/src/sisudoc/io_out/epub3.d
new file mode 100644
index 0000000..b4ff21b
--- /dev/null
+++ b/src/sisudoc/io_out/epub3.d
@@ -0,0 +1,810 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.epub3;
+@safe:
+template outputEPub3() {
+  import
+    std.file,
+    std.outbuffer,
+    std.uri,
+    std.zip,
+    std.conv : to;
+  import
+    sisudoc.io_out,
+    sisudoc.io_out.rgx,
+    sisudoc.io_out.rgx_xhtml,
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.xmls,
+    sisudoc.io_out.xmls_css;
+  mixin InternalMarkup;
+  mixin outputXHTMLs;
+  static auto rgx = RgxO();
+  static auto rgx_xhtml = RgxXHTML();
+  string special_characters_text(string _txt) {
+    _txt = _txt
+      .replaceAll(rgx_xhtml.ampersand,    "&amp;")  // "&#38;"
+      .replaceAll(rgx_xhtml.quotation,    "&quot;") // "&#34;"
+      .replaceAll(rgx_xhtml.less_than,    "&lt;")   // "&#60;"
+      .replaceAll(rgx_xhtml.greater_than, "&gt;")   // "&#62;"
+      .replaceAll(rgx.br_line,            "<br />")
+      .replaceAll(rgx.br_line_inline,     "<br />")
+      .replaceAll(rgx.br_line_spaced,     "<br />\n<br />")
+      .replaceAll(rgx.nbsp_char,          " ");
+    return _txt;
+  }
+  string epub3_mimetypes() {
+    string o;
+    o = format(q"┃application/epub+zip┃") ~ "\n";
+    return o;
+  }
+  string epub3_container_xml() {
+    string o;
+    o = format(q"┃<?xml version="1.0" encoding="utf-8"?>┃") ~ "\n";
+    o ~= format(q"┃<container version="1.0"
+  xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
+  <rootfiles>
+    <rootfile full-path="OEBPS/content.opf"
+      media-type="application/oebps-package+xml" />
+  </rootfiles>┃") ~ "\n</container>\n";
+    return o;
+  }
+  string epub3_oebps_content(D,M,P)(D doc_abstraction, M doc_matters, P parts) {
+    auto xhtml_format = outputXHTMLs();
+    auto pth_epub3 = spinePathsEPUB!()(doc_matters.output_path, doc_matters.src.language);
+    string _uuid = "18275d951861c77f78acd05672c9906924c59f18a2e0ba06dad95959693e9bd8"; // TODO sort uuid in doc_matters!
+    string content = format(q"┃<?xml version="1.0" encoding="utf-8"?>
+  <package version="3.0" xmlns="http://www.idpf.org/2007/opf" unique-identifier="uid" prefix="rendition: http://www.idpf.org/vocab/rendition/#">
+    <metadata
+      xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
+      xmlns:dcterms="https://purl.org/dc/terms/"
+      xmlns:dc="https://purl.org/dc/elements/1.1/"
+      unique-identifier="urn:uuid:%s" version="2.0">
+      <dc:title id="title">%s</dc:title>
+      <meta refines="#title" property="title-type">main</meta>
+      <dc:title id="subtitle">%s</dc:title>
+      <meta refines="#subtitle" property="title-type">subtitle</meta>
+      <dc:creator file-as="%s" id="aut">%s</dc:creator>
+      <dc:language>%s</dc:language>
+      <dc:date id="published">%s</dc:date>
+      <dc:rights>Copyright: %s</dc:rights>
+      <dc:identifier scheme="URI">%s</dc:identifier>
+      <dc:identifier id="bookid">urn:uuid:%s</dc:identifier>
+    </metadata>
+    <manifest>
+      <item id="css" href="%s" media-type="text/css"/>
+      <item id="nav" href="toc_nav.xhtml" media-type="application/xhtml+xml" properties="nav" />
+  ┃",
+      _uuid,
+      xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.title_main),
+      (doc_matters.conf_make_meta.meta.title_sub.empty)
+        ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.title_sub),
+      (doc_matters.conf_make_meta.meta.creator_author.empty)
+        ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+      (doc_matters.conf_make_meta.meta.creator_author.empty)
+        ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+      doc_matters.src.language,                                   // language, fix (needed in dochead metadata)
+      (doc_matters.conf_make_meta.meta.date_published.empty)
+        ? "" : xhtml_format.special_characters_date(doc_matters.conf_make_meta.meta.date_published),
+      (doc_matters.conf_make_meta.meta.rights_copyright.empty)
+        ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
+      _uuid,
+      _uuid,
+      (pth_epub3.fn_oebps_css).chompPrefix("OEBPS/"),
+    );
+    content ~= parts["manifest_documents"];
+    // TODO sort jpg & png
+    foreach (image; doc_matters.srcs.image_list) {
+      content ~= format(q"┃      <item id="%s" href="%s/%s" media-type="image/%s" />
+  ┃",
+        image.baseName.stripExtension,
+        (pth_epub3.doc_oebps_image).chompPrefix("OEBPS/"),
+        image,
+        image.extension.chompPrefix("."),
+      );
+    }
+    content ~= "  " ~ "</manifest>"         ~ "\n  ";
+    content ~= "  " ~ "<spine>"             ~ "\n  ";
+    content ~= parts["spine"];
+    content ~= "  " ~ "</spine>"            ~ "\n  ";
+    content ~= "  " ~ "<guide>"             ~ "\n  ";
+    content ~= parts["guide"];
+    content ~= "  " ~ "</guide>"            ~ "\n  ";
+    content ~= ""   ~ "</package>";
+    debug(epubmanifest) {
+      foreach (section; doc_matters.has.keys_seq.seg) { // TODO
+        foreach (obj; doc_abstraction[section]) {
+          if (obj.metainfo.is_a == "heading") {
+            if (obj.metainfo.heading_lev_markup == 4) {
+              writefln(
+                "%s~ [%s.xhtml] %s",
+                obj.marked_up_level,
+                obj.tags.segment_anchor_tag_epub,
+                obj.text
+              );
+            } else if (obj.metainfo.heading_lev_markup > 4) {
+              writefln(
+                "%s~ [%s.xhtml#%s] %s",
+                obj.marked_up_level,
+                obj.tags.segment_anchor_tag_epub,
+                obj.metainfo.object_number,
+                obj.text
+              );
+            }
+          }
+        }
+      }
+    }
+    return content;
+  }
+  string epub3_oebps_toc_nav_xhtml(D,I)(D doc_abstraction, I doc_matters) {
+    enum DomTags { none, open, close, close_and_open, open_still, }
+    auto markup = InlineMarkup();
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    string toc;
+    bool _new_title_set = false;
+    string toc_head = format(q"┃<html xmlns="https://www.w3.org/1999/xhtml"
+      xmlns:epub="http://www.idpf.org/2007/ops">
+  <head>
+    <title>%s</title>
+  </head>
+  <body>
+  <section epub:type="frontmatter toc">
+    <header>
+      <h1>Contents</h1>
+    </header>
+    <nav epub:type="toc" id="toc">
+  ┃",
+            (doc_matters.conf_make_meta.meta.title_full).special_characters_text,
+          );
+    string _toc_nav_tail = "";
+    // writeln(doc_matters.has.keys_seq.seg); // DEBUG line
+    foreach (sect; doc_matters.has.keys_seq.seg) {
+      foreach (obj; doc_abstraction[sect]) {
+        if ((sect == "head") && (obj.metainfo.is_a == "heading")) {
+          toc = toc_head;
+        }
+        if (sect == "tail") { // skip
+        } else if ((sect != "tail") && (obj.metainfo.is_a == "heading")) {
+          string _txt = obj.text.replaceAll(rgx.inline_notes_al_gen, "").strip;
+          foreach_reverse (n; 0 .. 7) {
+            string k = n.to!string;
+            switch (obj.metainfo.dom_structure_collapsed_tags_status[n]) {
+            case DomTags.none :
+              break;
+            case DomTags.close :
+              toc ~= markup.indent_by_spaces_provided((n + 1), "    ") ~ "</li>" ~ "\n";
+              toc ~= markup.indent_by_spaces_provided(n, "    ") ~ "</ol>" ~ "\n";
+              break;
+            case DomTags.close_and_open :
+              toc ~= markup.indent_by_spaces_provided((n + 1), "    ") ~ "</li>" ~ "\n";
+              goto default;
+            case DomTags.open :
+              if (!(_new_title_set)) {
+                toc ~= markup.indent_by_spaces_provided(n, "    ") ~ "<ol>" ~ "\n";
+              }
+              goto default;
+            default :
+              if ((obj.metainfo.dom_structure_collapsed_tags_status[n] == DomTags.close_and_open ||
+                   obj.metainfo.dom_structure_collapsed_tags_status[n] == DomTags.open
+              )) {
+                if ((sect == "head") && (obj.metainfo.is_a == "heading")) {
+                  toc ~= format(q"┃      <li>
+        <a href="_the_title.xhtml">%s</a>
+      </li>┃",
+                    obj.text
+                      .replaceAll(rgx.inline_notes_al_gen, "")
+                      .replaceAll(rgx.br_line_inline, "<br />")
+                      .strip,
+                  );
+                  toc ~= "\n";
+                  _new_title_set = true;
+                } else {
+                  _new_title_set = false;
+                  string _hashtag = "";
+                  if ((obj.metainfo.heading_lev_markup <= 4) && (obj.metainfo.ocn == 0)) {
+                    _hashtag = "#" ~ obj.metainfo.ocn.to!string;
+                  }
+                  string _href = "<a href=\""
+                    ~ obj.tags.segment_anchor_tag_epub ~ ".xhtml"
+                    ~ _hashtag
+                    ~ "\">";
+                  toc ~= markup.indent_by_spaces_provided((n + 1), "    ") ~ "<li>" ~ "\n"
+                  ~ markup.indent_by_spaces_provided((n + 2), "    ")
+                  ~ _href ~ _txt.special_characters_text ~ "</a>" ~ "\n";
+                }
+              }
+              break;
+            }
+            if (doc_matters.has.keys_seq.seg[doc_matters.has.keys_seq.seg.length - 2] == sect) {
+              // writeln(n, ": ", sect, ": ", _txt, " - ", obj.metainfo.dom_structure_collapsed_tags_status); // DEBUG
+              // read last heading (heading prior to closing) and determine what those instructions imply still need to be done
+              // CLOSE // DomTags { 0 none, 1 open, 2 close, 3 close_and_open, 4 open_still, }
+              if (n == 6) {_toc_nav_tail = "";}
+              switch (obj.metainfo.dom_structure_collapsed_tags_status[n]) {
+              case 0: case 2:
+              // case DomTags.none: case DomTags.close:
+                break;
+              case 1: case 3: case 4:
+              // case DomTags.open: case DomTags.close_and_open: case DomTags.open_still:
+                if (n != 0) {
+                  _toc_nav_tail ~= "   " ~ markup.indent_by_spaces_provided((n + 1), "  ") ~ "</li>" ~ "\n";
+                  _toc_nav_tail ~= "   " ~ markup.indent_by_spaces_provided(n, "  ") ~ "</ol>" ~ "\n";
+                }
+                break;
+              default :
+                break;
+              }
+              if (n == 0) {
+                _toc_nav_tail ~="  </nav>
+  </section>
+  </body>
+  </html>\n";
+              }
+            }
+          }
+        }
+      }
+    }
+    toc ~= _toc_nav_tail;
+    return toc;
+  }
+  @system void outputEPub3(D,I)(
+    const D    doc_abstraction,
+          I    doc_matters,
+  ) {
+    mixin spineRgxOut;
+    mixin spineRgxXHTML;
+    auto xhtml_format = outputXHTMLs();
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    string[] doc;
+    string segment_filename;
+    string[] top_level_headings = ["","","",""];
+    string[string] oepbs_content_parts;
+    string suffix = ".xhtml";
+    struct writeOut { /+ epub specific documents +/
+      /+ fixed output +/
+      string mimetypes;
+      string meta_inf_container_xml;
+      string oebps_toc_nav_xhtml;
+      /+ variable output +/
+      string oebps_content_opf;
+      string[][string] doc_epub3;
+      string[][string] doc_epub3_endnotes;
+      string[] doc_parts;
+    }
+    auto epubWrite = writeOut();
+    foreach (section; doc_matters.has.keys_seq.seg) {
+      foreach (obj; doc_abstraction[section]) {
+        string _txt = xhtml_format.special_characters_breaks_indents_bullets(obj);
+        if (obj.metainfo.is_a == "heading") {
+          assert(section == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          switch (obj.metainfo.heading_lev_markup) {
+          case 0: .. case 3:
+            /+ fill buffer, and replace with new levels from 1 to 3 +/
+            switch (obj.metainfo.heading_lev_markup) {
+            case 0:
+              top_level_headings[0] = "";
+              top_level_headings[1] = "";
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 1:
+              top_level_headings[1] = "";
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 2:
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 3:
+              top_level_headings[3] = "";
+              goto default;
+            default:
+              epubWrite.doc_parts ~= obj.tags.segment_anchor_tag_epub;
+              epubWrite.doc_epub3[obj.tags.segment_anchor_tag_epub] ~= xhtml_format.epub3_seg_head(doc_matters);
+              Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
+              epubWrite.doc_epub3[obj.tags.segment_anchor_tag_epub] ~= t[0];
+              epubWrite.doc_epub3_endnotes[obj.tags.segment_anchor_tag_epub] ~= t[1];
+              break;
+            }
+            break;
+          case 4:
+            segment_filename = obj.tags.segment_anchor_tag_epub;
+            epubWrite.doc_epub3[segment_filename] ~= xhtml_format.epub3_seg_head(doc_matters);
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
+            epubWrite.doc_epub3[segment_filename] ~= t[0];
+            epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+            break;
+          case 5: .. case 7:
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
+            epubWrite.doc_epub3[segment_filename] ~= t[0];
+            epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+            break;
+          case 8: .. case 9:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_epub) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.text);
+              }
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_epub) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
+              }
+            }
+            break;
+          }
+        } else {
+          assert(section == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          Tuple!(string, string[]) t;
+          switch (obj.metainfo.is_of_part) {
+          case "frontmatter":             assert(section == "head" || "toc");
+            switch (obj.metainfo.is_of_type) {
+            case "para":
+              switch (obj.metainfo.is_a) {
+              case "toc":
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_epub) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_epub) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+                }
+              }
+              break;
+            }
+            break;
+          case "body":                    assert(section == "body");
+            switch (obj.metainfo.is_of_type) {
+            case "para":
+              switch (obj.metainfo.is_a) {
+              case "para":
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_epub) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            case "block":
+              switch (obj.metainfo.is_a) {
+              case "quote":
+                t = xhtml_format.quote_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "group":
+                t = xhtml_format.group_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "block":
+                t = xhtml_format.block_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "poem":
+                break;
+              case "verse":
+                t = xhtml_format.verse_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "code":
+                epubWrite.doc_epub3[segment_filename] ~= xhtml_format.code(_txt, obj, doc_matters);
+                break;
+              case "table":
+                epubWrite.doc_epub3[segment_filename] ~= xhtml_format.table(_txt, obj, doc_matters);
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= "";
+                break;
+              default:
+                { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_epub) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_epub) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+                }
+              }
+              break;
+            }
+            break;
+          case "backmatter":
+            assert(section == "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+            switch (obj.metainfo.is_of_type) {
+            case "para":
+              switch (obj.metainfo.is_a) {
+              case "endnote":             assert(section == "endnotes");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                break;
+              case "glossary":            assert(section == "glossary");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "bibliography":        assert(section == "bibliography");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "bookindex":           assert(section == "bookindex");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "blurb":               assert(section == "blurb");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "tail":                assert(section == "tail");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                epubWrite.doc_epub3[segment_filename] ~= t[0];
+                epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_epub) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_epub) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+                }
+              }
+              break;
+            }
+            break;
+          case "comment":
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_epub) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
+              }
+            }
+            break;
+          }
+        }
+        if (obj.metainfo.is_a == "heading") {
+          // assert(obj.text.length > 0); // check assertion
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            oepbs_content_parts["manifest_documents"] ~=
+              format(q"┃<item id="%s.xhtml" href="%s.xhtml" media-type="application/xhtml+xml" />
+              ┃",
+              obj.tags.segment_anchor_tag_epub,
+              obj.tags.segment_anchor_tag_epub,
+            );
+            oepbs_content_parts["spine"] ~=
+              format(q"┃<itemref idref="%s.xhtml" linear="yes" />
+              ┃",
+              obj.tags.segment_anchor_tag_epub,
+            );
+            oepbs_content_parts["guide"] ~=
+              format(q"┃<reference type="%s" href="%s" />
+              ┃",
+              obj.tags.segment_anchor_tag_epub,
+              obj.tags.segment_anchor_tag_epub,
+            );
+          } else if (obj.metainfo.heading_lev_markup > 4) {
+            oepbs_content_parts["manifest_documents"] ~=
+              format(q"┃<item id="%s.xhtml#%s" href="%s.xhtml#%s" media-type="application/xhtml+xml" />
+              ┃",
+              obj.tags.segment_anchor_tag_epub,
+              obj.metainfo.object_number,
+              obj.tags.segment_anchor_tag_epub,
+              obj.metainfo.object_number,
+            );
+            oepbs_content_parts["spine"] ~=
+              format(q"┃<itemref idref="%s.xhtml#%s" linear="yes" />
+              ┃",
+              obj.tags.segment_anchor_tag_epub,
+              obj.metainfo.object_number,
+            );
+            oepbs_content_parts["guide"] ~=
+              format(q"┃<reference type="%s#%s" href="%s#%s" />
+              ┃",
+              obj.tags.segment_anchor_tag_epub,
+              obj.metainfo.object_number,
+              obj.tags.segment_anchor_tag_epub,
+              obj.metainfo.object_number,
+            );
+          }
+        }
+      }
+    }
+    /+ epub specific documents +/
+    epubWrite.mimetypes              = epub3_mimetypes;
+    epubWrite.meta_inf_container_xml = epub3_container_xml;
+    epubWrite.oebps_toc_nav_xhtml    = doc_abstraction.epub3_oebps_toc_nav_xhtml(doc_matters);
+    epubWrite.oebps_content_opf      = doc_abstraction.epub3_oebps_content(doc_matters, oepbs_content_parts);
+    epubWrite.epub3_write_output_files(doc_matters);
+  }
+  @system void epub3_write_output_files(W,M)(
+    W epub_write,
+    M doc_matters,
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(epub_write.doc_epub3)              == string[][string]));
+      static assert(is(typeof(epub_write.mimetypes)              == string));
+      static assert(is(typeof(epub_write.meta_inf_container_xml) == string));
+      static assert(is(typeof(epub_write.oebps_toc_nav_xhtml)    == string));
+      static assert(is(typeof(epub_write.oebps_content_opf)      == string));
+    }
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    auto pth_epub3 = spinePathsEPUB!()(doc_matters.output_path, doc_matters.src.language);
+    auto xhtml_format = outputXHTMLs();
+    /+ zip file +/
+    auto fn_epub = pth_epub3.epub_file(doc_matters.src.filename);
+    auto zip = new ZipArchive(); // ZipArchive zip = new ZipArchive();
+    /+ zip archive member files +/
+    void EPUBzip()(string contents, string fn) {
+      auto zip_arc_member_file = new ArchiveMember();
+      zip_arc_member_file.name = fn;
+      auto zip_data = new OutBuffer();
+      (doc_matters.opt.action.debug_do_epub)
+      ? zip_data.write(contents.dup)
+      : zip_data.write(contents.dup
+        .replaceAll(rgx.spaces_line_start, "")
+        .replaceAll(rgx.newline, " ")
+        .strip
+      );
+      zip_arc_member_file.expandedData = zip_data.toBytes();
+      zip.addMember(zip_arc_member_file);
+      createZipFile!()(fn_epub, zip.build());
+    }
+    try {
+      if (!exists(pth_epub3.base)) {
+        pth_epub3.base.mkdirRecurse;
+      }
+      if (!exists(pth_epub3.base ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_epub3.base ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+          "../../index.html",
+        ));
+      }
+      { /+ debug +/
+        if (doc_matters.opt.action.debug_do_epub) {
+          if (!exists(pth_epub3.dbg_doc_meta_inf(doc_matters.src.filename))) {
+            pth_epub3.dbg_doc_meta_inf(doc_matters.src.filename).mkdirRecurse;
+          }
+          if (!exists(pth_epub3.dbg_doc_oebps_css(doc_matters.src.filename))) {
+            pth_epub3.dbg_doc_oebps_css(doc_matters.src.filename).mkdirRecurse;
+          }
+          if (!exists(pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename))) {
+            pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename).mkdirRecurse;
+          }
+        }
+      }
+      { /+ OEBPS/[segments].xhtml (the document contents) +/
+        foreach (seg_filename; doc_matters.has.segnames_lv_0_to_4) {
+          string fn = pth_epub3.fn_oebps_content_xhtml(seg_filename);
+          auto zip_arc_member_file = new ArchiveMember();
+          zip_arc_member_file.name = fn;
+          auto zip_data = new OutBuffer();
+          { /+ debug +/
+            if (doc_matters.opt.action.debug_do_epub) {
+              string fn_dbg = pth_epub3.dbg_fn_oebps_content_xhtml(doc_matters.src.filename, seg_filename);
+              auto f = File(fn_dbg, "w");
+              foreach (docseg; epub_write.doc_epub3[seg_filename]) {
+                f.writeln(docseg);
+              }
+              foreach (docseg; epub_write.doc_epub3_endnotes[seg_filename]) {
+                f.writeln(docseg);
+              }
+              f.writeln(xhtml_format.tail(doc_matters));
+            }
+          }
+          foreach (docseg; epub_write.doc_epub3[seg_filename]) {
+            zip_data.write(docseg.dup);
+          }
+          foreach (docseg; epub_write.doc_epub3_endnotes[seg_filename]) {
+            zip_data.write(docseg.dup);
+          }
+          zip_data.write(xhtml_format.tail(doc_matters).dup);
+          zip_arc_member_file.expandedData = zip_data.toBytes();
+          zip.addMember(zip_arc_member_file);
+          /+ create the zip file +/
+          createZipFile!()(fn_epub, zip.build());
+        }
+      }
+      string fn;
+      string fn_dbg;
+      File f;
+      { /+ mimetypes (identify zip file type) +/
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_epub) {
+            fn_dbg = pth_epub3.dbg_fn_mimetypes(doc_matters.src.filename);
+            File(fn_dbg, "w").writeln(epub_write.mimetypes);
+          }
+        }
+        fn = pth_epub3.fn_mimetypes;
+        EPUBzip(epub_write.mimetypes, fn);
+      }
+      { /+  META-INF/container.xml (identify doc root) +/
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_epub) {
+            fn_dbg = pth_epub3.dbg_fn_dmi_container_xml(doc_matters.src.filename);
+            File(fn_dbg, "w").writeln(epub_write.meta_inf_container_xml);
+          }
+        }
+        fn = pth_epub3.fn_dmi_container_xml;
+        EPUBzip(epub_write.meta_inf_container_xml, fn);
+      }
+      { /+ OEBPS/toc_nav.xhtml (navigation toc epub3) +/
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_epub) {
+            fn_dbg = pth_epub3.dbg_fn_oebps_toc_nav_xhtml(doc_matters.src.filename);
+            File(fn_dbg, "w").writeln(epub_write.oebps_toc_nav_xhtml);
+          }
+        }
+        fn = pth_epub3.fn_oebps_toc_nav_xhtml;
+        EPUBzip(epub_write.oebps_toc_nav_xhtml, fn);
+      }
+      { /+ OEBPS/content.opf (doc manifest) +/
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_epub) {
+            fn_dbg = pth_epub3.dbg_fn_oebps_content_opf(doc_matters.src.filename);
+            File(fn_dbg, "w").writeln(epub_write.oebps_content_opf);
+          }
+        }
+        fn = pth_epub3.fn_oebps_content_opf;
+        EPUBzip(epub_write.oebps_content_opf, fn);
+      }
+      { /+ OEBPS/_dr/image (images) +/
+        foreach (image; doc_matters.srcs.image_list) {
+          { /+ debug +/
+            if (doc_matters.opt.action.debug_do_epub) {
+              if (doc_matters.opt.action.vox_gt2) {
+                writeln(
+                  doc_matters.src.image_dir_path, "/", image, " -> ",
+                  pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename), "/", image
+                );
+              }
+              if (exists(doc_matters.src.image_dir_path ~ "/" ~ image)) {
+                (doc_matters.src.image_dir_path ~ "/" ~ image)
+                .copy((pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename)) ~ "/" ~ image);
+              }
+            }
+          }
+          auto fn_src = doc_matters.src.image_dir_path ~ "/" ~ image;
+          auto fn_out =  pth_epub3.doc_oebps_image ~ "/" ~ image;
+          if (exists(fn_src)) {
+            {
+              auto zip_arc_member_file = new ArchiveMember();
+              zip_arc_member_file.name = fn_out;
+              auto zip_data = new OutBuffer();
+              zip_data.write(cast(char[]) ((fn_src).read));
+              zip_arc_member_file.expandedData = zip_data.toBytes();
+              zip.addMember(zip_arc_member_file);
+              createZipFile!()(fn_epub, zip.build());
+            }
+          }
+        }
+      }
+      { /+ OEBPS/epub.css +/
+        auto css = spineCss(doc_matters);
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_epub) {
+            fn_dbg = pth_epub3.dbg_fn_oebps_css(doc_matters.src.filename);
+            File(fn_dbg, "w").writeln(css.epub);
+          }
+        }
+        fn = pth_epub3.fn_oebps_css;
+        auto zip_arc_member_file = new ArchiveMember();
+        zip_arc_member_file.name = fn;
+        auto zip_data = new OutBuffer();
+        zip_data.write(css.epub.dup);
+        zip_arc_member_file.expandedData = zip_data.toBytes();
+        zip.addMember(zip_arc_member_file);
+        createZipFile!()(fn_epub, zip.build());
+      }
+    } catch (ErrnoException ex) {
+      // Handle error
+    }
+    if (doc_matters.opt.action.vox_gt0) {
+      writeln(" ", fn_epub);
+    }
+    debug(epub_archive) {
+      if (exists(fn_epub)) {
+        try {
+          auto zipped = new ZipArchive((fn_epub).read);
+          foreach (filename, member; zipped.directory) {
+            auto data = zipped.expand(member);
+            writeln(filename, " length ", data.length);
+          }
+        } catch (ZipException ex) {
+          // Handle errors
+        }
+      }
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/html.d b/src/sisudoc/io_out/html.d
new file mode 100644
index 0000000..d9aaa58
--- /dev/null
+++ b/src/sisudoc/io_out/html.d
@@ -0,0 +1,626 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.html;
+@safe:
+template outputHTML() {
+  import
+    std.file,
+    std.outbuffer,
+    std.uri,
+    std.conv : to;
+  import
+    sisudoc.io_out,
+    sisudoc.io_out.rgx,
+    sisudoc.meta.rgx_files,
+    sisudoc.io_out.rgx_xhtml,
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.xmls,
+    sisudoc.io_out.xmls_css;
+  mixin outputXHTMLs;
+  void scroll(D,M)(
+    const        D    doc_abstraction,
+                 M    doc_matters,
+  ) {
+    mixin spineRgxOut;
+    mixin spineRgxXHTML;
+    auto xhtml_format = outputXHTMLs();
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    string[] doc_html;
+    string[] doc;
+    string suffix = ".html";
+    string previous_section = "";
+    string delimit = "";
+    foreach (section; doc_matters.has.keys_seq.scroll) {
+      foreach (obj; doc_abstraction[section]) {
+        delimit = xhtml_format.div_delimit(section, previous_section);
+        string _txt = xhtml_format.special_characters_breaks_indents_bullets(obj);
+        switch (obj.metainfo.is_of_part) {
+        case "frontmatter":              assert(section == "head" || "toc");
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              doc_html ~= delimit ~ xhtml_format.heading_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "toc":
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_html) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_html) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+              }
+            }
+            break;
+          }
+          break;
+        case "body":                     assert(section == "body" || "head");
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              doc_html ~= delimit ~ xhtml_format.heading_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "para":
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_html) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          case "block":
+            switch (obj.metainfo.is_a) {
+            case "quote":
+              doc_html ~= xhtml_format.quote_scroll(_txt, obj, doc_matters);
+              break;
+            case "group":
+              doc_html ~= xhtml_format.group_scroll(_txt, obj, doc_matters);
+              break;
+            case "block":
+              doc_html ~= xhtml_format.block_scroll(_txt, obj, doc_matters);
+              break;
+            case "poem":
+              break;
+            case "verse":
+              doc_html ~= xhtml_format.verse_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "code":
+              doc_html ~= xhtml_format.code(_txt, obj, doc_matters);
+              break;
+            case "table":
+              doc_html ~= xhtml_format.table(_txt, obj, doc_matters);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_html) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_html) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+              }
+            }
+            break;
+          }
+          break;
+        case "backmatter":
+          assert(section == "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              doc_html ~= delimit ~ xhtml_format.heading_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "endnote":              assert(section == "endnotes");
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "glossary":             assert(section == "glossary");
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "bibliography":         assert(section == "bibliography");
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "bookindex":            assert(section == "bookindex");
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "blurb":                assert(section == "blurb");
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            case "tail":                 assert(section == "tail");
+              doc_html ~= xhtml_format.para_scroll(_txt, obj, doc_matters, suffix);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_html) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_html) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+              }
+            }
+            break;
+          }
+          break;
+        case "comment":
+          break;
+        default:
+          { /+ debug +/
+            if (doc_matters.opt.action.debug_do_html) {
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.text);
+            }
+          }
+          break;
+        }
+      }
+    }
+    doc = xhtml_format.html_head(doc_matters, "scroll")
+    ~ doc_html
+    ~ xhtml_format.dom_close
+    ~ xhtml_format.tail(doc_matters);
+    scroll_write_output(doc, doc_matters);
+  }
+  @trusted void scroll_write_output(D,M)(
+    D doc,
+    M doc_matters,
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(doc)    == string[]));
+    }
+    auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+    try {
+      if (!exists(pth_html.base)) {
+        pth_html.base.mkdirRecurse;
+      }
+      {
+        auto f = File(pth_html.fn_scroll(doc_matters.src.filename), "w");
+        foreach (o; doc) {
+          f.writeln(o);
+        }
+      }
+      if (!exists(pth_html.base ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_html.base ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+          "../../index.html",
+        ));
+      }
+    } catch (ErrnoException ex) {
+      // Handle error
+    }
+    if (doc_matters.opt.action.vox_gt0) {
+      writeln(" ", pth_html.fn_scroll(doc_matters.src.filename));
+    }
+  }
+  void seg(D,M)(
+    const D    doc_abstraction,
+          M    doc_matters,
+  ) {
+    mixin spineRgxOut;
+    mixin spineRgxXHTML;
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    auto xhtml_format = outputXHTMLs();
+    string[][string] doc_html;
+    string[][string] doc_html_endnotes;
+    string[] doc;
+    string segment_filename;
+    string[] top_level_headings = ["","","",""];
+    string previous_seg_filename = "";
+    string suffix = ".html";
+    string previous_section = "";
+    string delimit = "";
+    foreach (section; doc_matters.has.keys_seq.seg) {
+      foreach (obj; doc_abstraction[section]) {
+        delimit = xhtml_format.div_delimit(section, previous_section);
+        string _txt = xhtml_format.special_characters_breaks_indents_bullets(obj);
+        if (obj.metainfo.is_a == "heading") {
+          assert(section == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          switch (obj.metainfo.heading_lev_markup) {
+          case 0: .. case 3:
+            /+ fill buffer, and replace with new levels from 1 to 3 +/
+            switch (obj.metainfo.heading_lev_markup) {
+            case 0:
+              top_level_headings[0] = "";
+              top_level_headings[1] = "";
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 1:
+              top_level_headings[1] = "";
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 2:
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 3:
+              top_level_headings[3] = "";
+              goto default;
+            default:
+              Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
+              top_level_headings[obj.metainfo.heading_lev_markup] = t[0];
+              break;
+            }
+            break;
+          case 4:
+            segment_filename = obj.tags.segment_anchor_tag_epub;
+            doc_html[segment_filename] ~= xhtml_format.html_head(doc_matters, "seg");
+            auto navigation_bar = xhtml_format.nav_pre_next_svg(obj, doc_matters);
+            doc_html[segment_filename] ~= navigation_bar.toc_pre_next;
+            previous_seg_filename = segment_filename;
+            foreach (top_level_heading; top_level_headings) {
+              doc_html[segment_filename] ~= top_level_heading;
+            }
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
+            doc_html[segment_filename] ~= t[0].to!string;
+            doc_html[segment_filename] ~= xhtml_format.lev4_heading_subtoc(obj, doc_matters);
+            doc_html_endnotes[segment_filename] ~= t[1];
+            break;
+          case 5: .. case 7:
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
+            doc_html[segment_filename] ~= t[0].to!string;
+            doc_html_endnotes[segment_filename] ~= t[1];
+            break;
+          case 8: .. case 9:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_html) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.text);
+              }
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_html) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
+              }
+            }
+            break;
+          }
+        } else {
+          assert(section == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          Tuple!(string, string[]) t;
+          switch (obj.metainfo.is_of_part) {
+          case "frontmatter":             assert(section == "head" || "toc");
+            switch (obj.metainfo.is_of_type) {
+            case "para":
+              switch (obj.metainfo.is_a) {
+              case "toc":
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0].to!string;
+                break;
+              default:
+                { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_html) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_html) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          case "body":                    assert(section == "body");
+            switch (obj.metainfo.is_of_type) {
+            case "para":
+              switch (obj.metainfo.is_a) {
+              case "para":
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0].to!string;
+                doc_html_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_html) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            case "block":
+              switch (obj.metainfo.is_a) {
+              case "quote":
+                t = xhtml_format.quote_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
+              case "group":
+                t = xhtml_format.group_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
+              case "block":
+                t = xhtml_format.block_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
+              case "poem":
+                break;
+              case "verse":
+                t = xhtml_format.verse_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
+              case "code":
+                doc_html[segment_filename] ~= xhtml_format.code(_txt, obj, doc_matters);
+                break;
+              case "table":
+                doc_html[segment_filename] ~= xhtml_format.table(_txt, obj, doc_matters);
+                doc_html_endnotes[segment_filename] ~= "";
+                break;
+              default:
+                if ((obj.metainfo.is_a == "quote"
+                  || obj.metainfo.is_a == "group"
+                  || obj.metainfo.is_a == "block"
+                  || obj.metainfo.is_a == "verse"
+                )) {
+                  doc_html[segment_filename] ~= t[0].to!string;
+                  doc_html_endnotes[segment_filename] ~= t[1];
+                } else { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_html) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_html) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+                }
+              }
+              break;
+            }
+            break;
+          case "backmatter":
+            assert(section == "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+            switch (obj.metainfo.is_of_type) {
+            case "para":
+              switch (obj.metainfo.is_a) {
+              case "endnote":             assert(section == "endnotes");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0];
+                break;
+              case "glossary":            assert(section == "glossary");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0];
+                doc_html_endnotes[segment_filename] ~= t[1];
+                break;
+              case "bibliography":        assert(section == "bibliography");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0];
+                doc_html_endnotes[segment_filename] ~= t[1];
+                break;
+              case "bookindex":           assert(section == "bookindex");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0];
+                doc_html_endnotes[segment_filename] ~= t[1];
+                break;
+              case "blurb":               assert(section == "blurb");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0];
+                doc_html_endnotes[segment_filename] ~= t[1];
+                break;
+              case "tail":                assert(section == "tail");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                doc_html[segment_filename] ~= t[0];
+                doc_html_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                { /+ debug +/
+                  if (doc_matters.opt.action.debug_do_html) {
+                    writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                  }
+                }
+                break;
+              }
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_html) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+                }
+              }
+              break;
+            }
+            break;
+          case "comment":
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_html) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
+              }
+            }
+            break;
+          }
+        }
+      }
+    }
+    seg_write_output(doc_html, doc_html_endnotes, doc_matters);
+  }
+  @trusted void seg_write_output(D,E,M)( // @system?
+    D doc_html,
+    E doc_html_endnotes,
+    M doc_matters,
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(doc_html)      == string[][string]));
+    }
+    mixin spineRgxFiles;
+    static auto rgx_files = RgxFiles();
+    auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+    auto xhtml_format = outputXHTMLs();
+    auto m = doc_matters.src.filename.matchFirst(rgx_files.src_fn);
+    try {
+      if (!exists(pth_html.seg(doc_matters.src.filename))) {
+        pth_html.seg(doc_matters.src.filename).mkdirRecurse;
+      }
+      foreach (seg_filename; doc_matters.has.segnames_lv4) {
+        auto f = File(pth_html.fn_seg(doc_matters.src.filename, seg_filename), "w");
+        foreach (docseg; doc_html[seg_filename]) {
+          f.writeln(docseg);
+        }
+        foreach (docseg; doc_html_endnotes[seg_filename]) {
+          f.writeln(docseg);
+        }
+        f.writeln(xhtml_format.tail(doc_matters));
+      }
+      if (!exists(pth_html.fn_seg(doc_matters.src.filename, "index"))) {
+        symlink("./toc.html", (pth_html.fn_seg(doc_matters.src.filename, "index")));
+      }
+    } catch (ErrnoException ex) {
+      // handle error
+    }
+    if (doc_matters.opt.action.vox_gt0) {
+      writeln(" ", pth_html.fn_seg(doc_matters.src.filename, "toc"));
+    }
+  }
+  void css(M)(M doc_matters) {
+    auto css = spineCss(doc_matters);
+    auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+    try {
+      if (!exists(pth_html.css)) {
+        (pth_html.css).mkdirRecurse;
+      }
+      {
+        auto f = File(pth_html.fn_seg_css, "w");
+        f.writeln(css.html_seg);
+        f = File(pth_html.fn_scroll_css, "w");
+        f.writeln(css.html_scroll);
+      }
+      if (!exists(pth_html.css ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_html.css ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "./css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+          "../index.html",
+        ));
+      }
+    } catch (ErrnoException ex) {
+      // Handle error
+    }
+  }
+  @trusted void images_cp(M)( // @system
+    M    doc_matters,
+  ) {
+    { /+ (copy html images) +/
+      auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+      if (!exists(pth_html.image)) {
+        pth_html.image.mkdirRecurse;
+      }
+      foreach (image; doc_matters.srcs.image_list) {
+        auto fn_src_in = doc_matters.src.image_dir_path ~ "/" ~ image;
+        auto fn_src_out = pth_html.image ~ "/" ~ image;
+        debug(images_html) {
+          writeln(fn_src_in, " -> ", fn_src_out);
+        }
+        if (exists(fn_src_in)) {
+          fn_src_in.copy(fn_src_out);
+        } else {
+          if (doc_matters.opt.action.vox_gt0) {
+            writeln("WARNING image not found: ", fn_src_in);
+          }
+        }
+      }
+      if (!exists(pth_html.image ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_html.image ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url ,
+          "../index.html",
+        ));
+      }
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/html_snippet.d b/src/sisudoc/io_out/html_snippet.d
new file mode 100644
index 0000000..480246a
--- /dev/null
+++ b/src/sisudoc/io_out/html_snippet.d
@@ -0,0 +1,103 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.html_snippet;
+@safe:
+template htmlSnippet() {
+  import
+    std.file,
+    std.outbuffer,
+    std.format,
+    std.uri,
+    std.conv : to;
+  import
+    sisudoc.io_out.rgx,
+    sisudoc.meta.rgx_files,
+    sisudoc.io_out.rgx_xhtml;
+  auto format_html_blank_page_guide_home()(
+    string css_style,
+    string home_url,
+    string collection_home_path
+  ) {
+    auto html_blank_default = format(q"┃<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/plain; charset=UTF-8" />
+    <link href="%s" rel="stylesheet" />
+  </head>
+  <body>
+    <p class="icons">
+      <a href="%s" class="lnkicon">⟰&nbsp;</a>&nbsp;
+      <a href="%s" class="lnkicon">&nbsp;≅&nbsp;</a>
+    </p>
+  </body>
+</html>┃",
+      css_style,
+      home_url,
+      collection_home_path
+    );
+    return html_blank_default;
+  }
+  string special_characters_text(string _txt) {
+    mixin spineRgxOut;
+    mixin spineRgxXHTML;
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    _txt = _txt
+      .replaceAll(rgx_xhtml.ampersand,    "&amp;")  // "&#38;"
+      .replaceAll(rgx_xhtml.quotation,    "&quot;") // "&#34;"
+      .replaceAll(rgx_xhtml.less_than,    "&lt;")   // "&#60;"
+      .replaceAll(rgx_xhtml.greater_than, "&gt;")   // "&#62;"
+      .replaceAll(rgx.br_line,            "<br />")
+      .replaceAll(rgx.br_line_inline,     "<br />")
+      .replaceAll(rgx.br_line_spaced,     "<br />\n<br />")
+      .replaceAll(rgx.nbsp_char,          " ");
+    return _txt;
+  }
+}
diff --git a/src/sisudoc/io_out/hub.d b/src/sisudoc/io_out/hub.d
new file mode 100644
index 0000000..b68eb0d
--- /dev/null
+++ b/src/sisudoc/io_out/hub.d
@@ -0,0 +1,238 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  output hub<BR>
+  check & generate output types requested
++/
+module sisudoc.io_out.hub;
+@safe:
+template outputHub() {
+  import sisudoc.io_out,
+    sisudoc.io_out.metadata,
+    sisudoc.io_out.xmls,
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.paths_output;
+  @system void outputHub(D,I)(
+    const D doc_abstraction,
+    I doc_matters
+  ) {
+    mixin Msg;
+    auto msg = Msg!()(doc_matters);
+    enum outTask { source_or_pod, sqlite, sqlite_multi, latex, odt, epub, html_scroll, html_seg, html_stuff }
+    void Scheduled(D,I)(int sched, D doc_abstraction, I doc_matters) {
+      auto msg = Msg!()(doc_matters);
+      if (sched == outTask.source_or_pod) {
+        msg.v("spine (doc reform) source processing... ");
+        if (doc_matters.opt.action.pod) {
+          msg.v("spine (doc reform) source pod processing... ");
+        }
+        import sisudoc.io_out.source_pod;
+        spinePod!()(doc_matters);
+        if (doc_matters.opt.action.source) {
+          msg.vv("spine (doc reform) source done");
+        }
+        if (doc_matters.opt.action.pod) {
+          msg.vv("spine (doc reform) source pod done");
+        }
+      }
+      if (sched == outTask.epub) {
+        msg.v("epub3 processing... ");
+        import sisudoc.io_out.epub3;
+        doc_abstraction.outputEPub3!()(doc_matters);
+        msg.vv("epub3 done");
+      }
+      if (sched == outTask.html_stuff) {
+        outputMetadata!()(doc_matters);
+        msg.vv("html metadata done");
+      }
+      if (sched == outTask.html_scroll) {
+        msg.v("html scroll processing... ");
+        import sisudoc.io_out.html;
+        outputHTML!().scroll(doc_abstraction, doc_matters);
+        msg.vv("html scroll done");
+      }
+      if (sched == outTask.html_seg) {
+        msg.v("html seg processing... ");
+        import sisudoc.io_out.html;
+        outputHTML!().seg(doc_abstraction, doc_matters);
+        msg.vv("html seg done");
+      }
+      if (sched == outTask.html_stuff) {
+        import sisudoc.io_out.html;
+        outputHTML!().css(doc_matters);
+        outputHTML!().images_cp(doc_matters);
+        msg.vv("html css & images done");
+      }
+      if (sched == outTask.latex) {
+        msg.v("latex processing... (available for downstream processing & pdf output");
+        import sisudoc.io_out.latex;
+        import std.file;
+        if ((isValidPath(doc_matters.output_path ~ "/latex/sty"))
+          && (!(exists(doc_matters.output_path ~ "/latex/sty")))
+        ) {
+          outputLaTeXstyInit!()(
+            doc_matters.output_path,
+            doc_matters.opt.action.generated_by,
+            doc_matters.generator_program.name_version_and_compiler,
+            doc_matters.generator_program.time_output_generated,
+          );
+        }
+        outputLaTeX!()(doc_abstraction, doc_matters);
+        msg.vv("latex done");
+      }
+      if (sched == outTask.odt) {
+        msg.v("odf:odt processing... ");
+        import sisudoc.io_out.odt;
+        outputODT!()(doc_abstraction, doc_matters);
+        msg.vv("odf:odt done");
+      }
+      if (sched == outTask.sqlite) {
+        msg.v("sqlite processing... ");
+        import sisudoc.io_out.sqlite;
+        doc_abstraction.SQLiteHubDiscreteBuildTablesAndPopulate!()(doc_matters);
+        msg.vv("sqlite done");
+      }
+    }
+    if (doc_matters.opt.action.vox_gt0) {
+      writeln(" ", doc_matters.src.filename_base);
+    }
+    if (!(doc_matters.opt.action.parallelise_subprocesses)) {
+      foreach(schedule; doc_matters.opt.action.output_task_scheduler) {
+        Scheduled!()(schedule, doc_abstraction, doc_matters);
+      }
+    } else {
+      import std.parallelism;
+      foreach(schedule; parallel(doc_matters.opt.action.output_task_scheduler)) {
+        Scheduled!()(schedule, doc_abstraction, doc_matters);
+      }
+    }
+    if (doc_matters.opt.action.sqlite_update) {
+      msg.v("sqlite update processing...");
+      import sisudoc.io_out.sqlite;
+      doc_abstraction.SQLiteHubBuildTablesAndPopulate!()(doc_matters);
+      msg.vv("sqlite update done");
+    } else if (doc_matters.opt.action.sqlite_delete) {
+      msg.v("sqlite delete processing...");
+      import sisudoc.io_out.sqlite;
+      doc_abstraction.SQLiteHubBuildTablesAndPopulate!()(doc_matters);
+      msg.vv("sqlite delete done");
+    }
+  }
+}
+template outputHubInitialize() {
+  import std.file;
+  import sisudoc.io_out,
+    sisudoc.io_out.metadata,
+    sisudoc.io_out.paths_output;
+  string _bespoke_homepage = "./spine-bespoke-output/html/homepage.index.html";
+  @system void outputHubInitialize(O,I)(
+    O opt_action,
+    I program_info
+  ) {
+    if ((opt_action.html || opt_action.html_seg || opt_action.html_scroll)
+        && opt_action.output_dir_set.length > 0
+        && !(opt_action.output_dir_set ~ "/index.html").exists
+    ) {
+      writeln(_bespoke_homepage);
+      if ((_bespoke_homepage).exists) {
+        writeln("copy bespoke html homepage\n", _bespoke_homepage, " -> ", opt_action.output_dir_set, "/index.html");
+        _bespoke_homepage.copy(opt_action.output_dir_set ~ "/index.html");
+      } else {
+        writeln("place bespoke homepage in ", _bespoke_homepage);
+      }
+    }
+    if (
+      opt_action.latex_document_header_sty
+      || (
+        opt_action.latex
+        && opt_action.output_dir_set.length > 0
+        && !(isValidPath(opt_action.output_dir_set ~ "/latex/sty")))
+    ) { // .sty need to be produced only once (if unchanged per output-dir of which there usually will be only one)
+      import sisudoc.io_out.latex;
+      outputLaTeXstyInit!()(
+        opt_action.output_dir_set,
+        opt_action.generated_by,
+        program_info.name_version_and_compiler,
+        program_info.time_output_generated,
+      );
+      writeln(opt_action.latex);
+    }
+  }
+}
+template outputHubOp() {
+  import sisudoc.io_out,
+    sisudoc.io_out.metadata,
+    sisudoc.io_out.xmls,
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.paths_output;
+  @system void outputHubOp(E,O,C)(E env, O opt_action, C config) {
+    if ((opt_action.sqlite_db_drop)) {
+      if ((opt_action.vox_gt1)) {
+        writeln("sqlite drop db...");
+      }
+      import sisudoc.io_out.sqlite;
+      SQLiteDbDrop!()(opt_action, config);
+      if ((opt_action.vox_gt2)) {
+        writeln("sqlite drop db done");
+      }
+    }
+    if ((opt_action.sqlite_db_create)) {
+      if ((opt_action.vox_gt1)) {
+        auto pth_sqlite_db = spinePathsSQLite!()(opt_action.cgi_sqlite_search_filename, opt_action.output_dir_set);
+        writeln("sqlite create table...");
+      }
+      import sisudoc.io_out.sqlite;
+      SQLiteTablesCreate!()(env, opt_action, config);
+      if ((opt_action.vox_gt2)) {
+        writeln("sqlite create table done");
+      }
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/latex.d b/src/sisudoc/io_out/latex.d
new file mode 100644
index 0000000..a6867cb
--- /dev/null
+++ b/src/sisudoc/io_out/latex.d
@@ -0,0 +1,1771 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.latex;
+@safe:
+template paperLaTeX() {
+  import
+    std.format,
+    std.conv : to;
+  auto paperLaTeX() {
+    string mm(uint mmi) {
+      string _mm = format(q"┃%smm┃", mmi.to!string);
+      return _mm;
+    }
+    struct PaperType {
+      auto a4() {
+        struct A4 {
+          auto portrait() {
+            struct V {
+              string       stylesheet    = "spineA4portrait";
+              string       papersize     = "a4paper";
+              string       orient        = "portrait";
+              string       fontsize      = "11pt";
+              const uint   w             = 170;
+              const uint   h             = 257;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 450;
+              bool         is_portrait   = true;
+            }
+            return V();
+          }
+          auto landscape() {
+            struct H {
+              string       stylesheet    = "spineA4landscape";
+              string       papersize     = "a4paper";
+              string       orient        = "landscape";
+              string       fontsize      = "11pt";
+              const uint   w             = 238;
+              const uint   h             = 160;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 300;
+              bool         is_portrait   = false;
+            }
+            return H();
+          }
+        }
+        return A4();
+      }
+      auto a5() {
+        struct A5 {
+          auto portrait() {
+            struct V {
+              string       stylesheet    = "spineA5portrait";
+              string       papersize     = "a5paper";
+              string       orient        = "portrait";
+              string       fontsize      = "11pt";
+              const uint   w             = 112;
+              const uint   h             = 162;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 280;
+              bool         is_portrait   = true;
+            }
+            return V();
+          }
+          auto landscape() {
+            struct H {
+              string       stylesheet    = "spineA5landscape";
+              string       papersize     = "a5paper";
+              string       orient        = "landscape";
+              string       fontsize      = "11pt";
+              const uint   w             = 152;
+              const uint   h             = 100;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 190;
+              bool         is_portrait   = false;
+            }
+            return H();
+          }
+        }
+        return A5();
+      }
+      auto b4() {
+        struct B4 {
+          auto portrait() {
+            struct V {
+              string       stylesheet    = "spineB4portrait";
+              string       papersize     = "b4paper";
+              string       orient        = "portrait";
+              string       fontsize      = "11pt";
+              const uint   w             = 140;
+              const uint   h             = 204;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 356;
+              bool         is_portrait   = true;
+            }
+            return V();
+          }
+          auto landscape() {
+            struct H {
+              string       stylesheet    = "spineB4landsape";
+              string       papersize     = "b4paper";
+              string       orient        = "landscape";
+              string       fontsize      = "11pt";
+              const uint   w             = 200;
+              const uint   h             = 130;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 260;
+              bool         is_portrait   = false;
+            }
+            return H();
+          }
+        }
+        return B4();
+      }
+      auto letter() {
+        struct Letter {
+          auto portrait() {
+            struct V {
+              string       stylesheet    = "spineLetterPortrait";
+              string       papersize     = "letterpaper";
+              string       orient        = "portrait";
+              string       fontsize      = "11pt";
+              const uint   w             = 166;
+              const uint   h             = 212;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 468;
+              bool         is_portrait   = true;
+            }
+            return V();
+          }
+          auto landscape() {
+            struct H {
+              string       stylesheet    = "spineLetterLandscape";
+              string       papersize     = "letterpaper";
+              string       orient        = "landscape";
+              string       fontsize      = "11pt";
+              const uint   w             = 226;
+              const uint   h             = 166;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 290;
+              bool         is_portrait   = false;
+            }
+            return H();
+          }
+        }
+        return Letter();
+      }
+      auto legal() {
+        struct Legal {
+          auto portrait() {
+            struct V {
+              string       stylesheet    = "spineLegalPortrait";
+              string       papersize     = "legalpaper";
+              string       orient        = "portrait";
+              string       fontsize      = "11pt";
+              const uint   w             = 168;
+              const uint   h             = 286;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 474;
+              bool         is_portrait   = true;
+            }
+            return V();
+          }
+          auto landscape() {
+            struct H {
+              string       stylesheet    = "spineLegalLandscape";
+              string       papersize     = "legalpaper";
+              string       orient        = "landscape";
+              string       fontsize      = "11pt";
+              const uint   w             = 296;
+              const uint   h             = 166;
+              const uint   l             = 30;
+              const uint   r             = 20;
+              const uint   t             = 30;
+              const uint   b             = 30;
+              string       width         = mm(w);
+              string       height        = mm(h);
+              string       margin_left   = mm(l);
+              string       margin_right  = mm(r);
+              string       margin_top    = mm(t);
+              string       margin_bottom = mm(b);
+              uint         img_px        = 420;
+              bool         is_portrait   = false;
+            }
+            return H();
+          }
+        }
+        return Legal();
+      }
+    }
+    return PaperType();
+  }
+}
+template outputLaTeX() {
+  import
+    std.digest.sha,
+    std.file,
+    std.outbuffer,
+    std.uri,
+    std.conv : to;
+  import
+    sisudoc.io_out,
+    sisudoc.io_out.rgx,
+    sisudoc.io_out.rgx_latex;
+  mixin spineRgxOut;
+  static auto rgx = RgxO();
+  mixin spineRgxLSC;
+  static auto rgx_sc = RgxLSC();
+  mixin spineLanguageCodes;
+  auto lang = Lang();
+  auto paper = paperLaTeX;
+  string sp_char_ops()(
+    string      _txt,
+  ) {
+    string _unescape_sp_char_esc()(string _txt) {
+      _txt = _txt
+        .replaceAll(rgx_sc.latex_special_char_escaped,
+          format(q"┃%s┃", "$1"))
+        .replaceAll(rgx_sc.latex_special_char_escaped_braced,
+          format(q"┃%s┃", "$1"));
+      return _txt;
+    }
+    string _unescape_fontface_esc()(string _txt) {
+      _txt = _txt.replaceAll(rgx_sc.latex_identify_inline_fontface,
+           format(q"┃%s%s┃", "$1", "$2"));
+      return _txt;
+    }
+    _txt = replaceAll!(m => "\\" ~ m[1])(_txt, rgx_sc.latex_special_char_for_escape);
+    _txt = replaceAll!(m => "{\\" ~ m[1] ~ "}")(_txt, rgx_sc.latex_special_char_for_escape_and_braces);
+    _txt = replaceAll!(m => "''")(_txt, rgx.quotes_open_and_close);
+    _txt = replaceAll!(m => "$\\cdot$")(_txt, rgx.middle_dot);
+    _txt = replaceAll!(m => _unescape_sp_char_esc(m[0]))(_txt, rgx_sc.latex_identify_inline_link);
+    _txt = replaceAll!(m => _unescape_fontface_esc(m[0]))(_txt, rgx_sc.latex_identify_inline_fontface);
+    return _txt;
+  }
+  string sp_char_esc(O)(
+    string      _txt,
+    const    O  obj,
+  ) {
+    if (obj.metainfo.is_a != "code") {
+      _txt = _txt.sp_char_ops;
+    }
+    return _txt;
+  }
+  string sp_char_esc_txt()(
+    string      _txt,
+  ) {
+    _txt = _txt.sp_char_ops;
+    return _txt;
+  }
+  string marked_linebreaks_newlines()(
+    string      _txt,
+  ) {
+    _txt = _txt.split(rgx.br_linebreaks_newlines).join("\\br\n").strip;
+    // _txt = replaceAll!(m => "\\br " ~ m[1])(_txt, rgx.br_linebreaks_newlines);
+    return _txt;
+  }
+  string fontface()(
+    string      _txt,
+  ) {
+  _txt = _txt
+    .replaceAll(rgx.inline_emphasis,    format(q"┃\begin{bfseries}%s\end{bfseries}┃", "$1"))
+    .replaceAll(rgx.inline_bold,        format(q"┃\begin{bfseries}%s\end{bfseries}┃", "$1"))
+    .replaceAll(rgx.inline_italics,     format(q"┃\emph{%s}┃",                        "$1"))
+    .replaceAll(rgx.inline_italics,     format(q"┃\uline{%s}┃",                       "$1"))
+    .replaceAll(rgx.inline_superscript, format(q"┃$$^{%s}$$┃",           "$1"))
+    .replaceAll(rgx.inline_subscript,   format(q"┃$$_{%s}$$┃",           "$1"))
+    .replaceAll(rgx.inline_strike,      format(q"┃\sout{%s}┃",                        "$1"))
+    .replaceAll(rgx.inline_insert,      format(q"┃\uline{%s}┃",                       "$1"))
+    .replaceAll(rgx.inline_mono,        format(q"┃\begin{monosp}%s\end{monosp}┃",     "$1"))
+    .replaceAll(rgx.inline_italics,     format(q"┃``%s''┃",                           "$1"));
+    return _txt;
+  }
+  string leading_hardspaces()(
+    string      _txt,
+  ) {
+    string hardspaces(string _spaces) {
+      _spaces  = _spaces
+        .replaceAll(rgx.space, "{\\s}");
+      return _spaces;
+    }
+    _txt = replaceAll!(m => hardspaces(m[0]))(_txt, rgx.spaces_line_start);
+    return _txt;
+  }
+  string nbsp_char()(string _txt) {
+    if (_txt.match(rgx.nbsp_char)) {
+      foreach (m; _txt.matchAll(rgx.nbsp_chars)) {
+        int spaces_ = 0;
+        foreach (n; m[0].matchAll(rgx.nbsp_char)) {
+          spaces_ ++;
+        }
+        _txt = _txt.replaceFirst(rgx.nbsp_chars, "\\spaces{" ~ spaces_.to!string ~ "}");
+      }
+    }
+    return _txt;
+  }
+  string spaces_to_nbsp()(string _txt) {
+    if (_txt.match(rgx.spaces_keep)) {
+      foreach (m; _txt.matchAll(rgx.spaces_keep)) {
+        int spaces_ = 0;
+        foreach (n; m[0].matchAll(rgx.space)) {
+          spaces_ ++;
+        }
+        _txt = _txt.replaceFirst(rgx.spaces_keep, "\\spaces{" ~ spaces_.to!string ~ "}");
+      }
+    }
+    return _txt;
+  }
+  string nbsp_char_to_space()(string _txt) {
+    if (_txt.match(rgx.nbsp_char)) {
+      _txt  = _txt.replaceAll(rgx.nbsp_char, " ");
+    }
+    return _txt;
+  }
+  string links_and_images(O,M)(
+    string      _txt,
+    const    O  obj,
+             M  doc_matters,
+  ) {
+    if (obj.has.inline_links) { // TODO some images do not have inline links ... image without link
+      string _width_adjust(string _width) {
+        if (_width.to!int > 300) { _width = "300"; } // will need to vary max with papersize & orientation
+        return _width;
+      }
+      string _latex_image_path(string _image_path) {
+        auto pth_latex = spinePathsLaTeX(doc_matters);
+        _image_path = pth_latex.latex_path_stuff ~ "/" ~ _image_path;
+        return _image_path;
+      }
+      string _if_images(string _linked_content) {
+        if (_linked_content.match(rgx.inline_image_info)) {
+          _linked_content = replaceAll!(m =>
+              format(q"┃\includegraphics*[width=%spt]{%s}%s┃",
+                _width_adjust(m[2]), _latex_image_path(m[1]), " \\br\n")
+            )(_linked_content, rgx.inline_image_info);
+        }
+        return _linked_content;
+      }
+      string _check_link(string _link) {
+        _link = _link
+          .replaceFirst(rgx_sc.latex_clean_internal_link, "")
+          .replaceAll(rgx_sc.latex_special_char_for_escape_url, "\\$1");
+        return _link;
+      }
+      if  (obj.metainfo.is_a != "code") {
+        _txt = replaceAll!(m =>
+            m[1] ~ "┤" ~ to!string((obj.stow.link[m[2].to!ulong])).encode ~ "├"
+          )(_txt, rgx.inline_link_number_only);
+        _txt = replaceAll!(m =>
+            ((m[1] == m[2]) && (m[2].match(rgx.uri))) // url link (regular link with url)
+            ? format(q"┃\linkurl{%s}{%s}┃", _check_link(m[1]), (_check_link(m[1])).sp_char_esc_txt)
+            : ((m[2].match(rgx.uri)) && (m[1].match(rgx.inline_image_info))) // linked image
+              ? format(q"┃%s\href{%s}%s{%s}┃", "\\br ", _check_link(m[2]), "\n", _if_images(m[1])) // markup for images
+              : (m[2].match(rgx.uri)) // not linked image
+                ? format(q"┃%s\linktext{%s}{%s}┃", "\\br ", _check_link(m[2]), m[1]) // regular link with text
+                : format(q"┃\hyperlink{%s}{%s}┃", _check_link(m[2]), _if_images(m[1])) // internal links, like book index
+          )(_txt, rgx.inline_link);
+      }
+    }
+    return _txt;
+  }
+  string footnotes()(
+    string      _txt,
+  ) {
+    if (_txt.match(rgx.inline_notes_al_gen)) {
+      string _tex_note = q"┃\hypertarget{noteref_%s}{}\footnote[%s]{%%
+  \label{note_%s}%s}┃";
+      _txt = _txt.split(rgx.br_linebreaks).join("\\br ").replaceAll(rgx.inline_notes_al_regular_number_note,
+        format(_tex_note,
+          "$1", "$1", "$1",
+          "$2".strip
+        ).strip
+      );
+    }
+    return _txt;
+  }
+  string remove_footnotes()(
+    string      _txt,
+  ) {
+    if (_txt.match(rgx.inline_notes_al_gen)) {
+      _txt = replaceAll!(m => "")(_txt, rgx.inline_notes_al_gen);
+    }
+    return _txt;
+  }
+  string para(O)(
+    string      _txt,
+    O           obj,
+  ) {
+    if (obj.metainfo.is_of_type == "para") {
+      string _tex_para;
+      _tex_para = q"┃\ocn{%s}%s┃";
+      _txt  = format(_tex_para,
+        obj.metainfo.object_number,
+        _txt.footnotes
+      ).strip;
+    }
+    return _txt;
+  }
+  string bookindex(O)(
+    string      _txt,
+    O           obj,
+  ) {
+    if (obj.metainfo.is_of_type == "para"
+      && obj.metainfo.is_a == "bookindex"
+    ) {
+      string _tex_para;
+      _tex_para = q"┃%s┃";
+      _txt  = format(_tex_para,
+        _txt.replaceAll(rgx_sc.latex_clean_bookindex_linebreak, "\n") ~ "\n\\brln\n"
+      );
+    }
+    return _txt;
+  }
+  string heading(O,M)(
+    string      _txt,
+    O           obj,
+    M           doc_matters,
+    string      paper_size_orientation,
+    string      _part = ""
+  ) {
+    struct latexMarks {
+      string pg_break = "\\clearpage\n";
+    }
+    latexMarks manual_breaks(
+      latexMarks _ltx,
+      string     test_for_break_level,
+    ) {
+      if ((!(doc_matters.conf_make_meta.make.breaks.empty)
+        && (matchFirst(doc_matters.conf_make_meta.make.breaks, test_for_break_level)))
+      ) {                                                                      // manually override defaults
+        if ((matchFirst(doc_matters.conf_make_meta.make.breaks, rgx.make_breakpage))
+          && (matchFirst(doc_matters.conf_make_meta.make.breaks, rgx.make_breakcolumn))
+        ) {
+          if (auto m = matchFirst(doc_matters.conf_make_meta.make.breaks, rgx.make_breakpage)) {
+            if (matchFirst(m.captures["breakpage"], test_for_break_level)) {
+              _ltx.pg_break = "\\clearpage\n";
+            } else if (auto n = matchFirst(doc_matters.conf_make_meta.make.breaks, rgx.make_breakcolumn)) {
+              if (matchFirst(n.captures["breakcolumn"], test_for_break_level)) {
+                if ((paper_size_orientation == "a4.landscape")
+                  || (paper_size_orientation == "b4.landscape")
+                  || (paper_size_orientation == "a5.landscape")
+                  || (paper_size_orientation == "letter.landscape")
+                  || (paper_size_orientation == "legal.landscape")
+                ) {
+                  _ltx.pg_break = "\\\\ \\columnbreak\n"; // "\\\\ \\newpage\n";
+                } else { // portrait
+                  _ltx.pg_break = "\\clearpage\n";
+                }
+              }
+            }
+          }
+        } else if (auto m = matchFirst(doc_matters.conf_make_meta.make.breaks, rgx.make_breakpage)) {
+          if (matchFirst(m.captures["breakpage"], test_for_break_level)) {
+            _ltx.pg_break = "\\clearpage\n";
+          }
+        } else if (auto m = matchFirst(doc_matters.conf_make_meta.make.breaks, rgx.make_breakcolumn)) {
+          if (matchFirst(m.captures["breakcolumn"], test_for_break_level)) {
+            if ((paper_size_orientation == "a4.landscape")
+              || (paper_size_orientation == "b4.landscape")
+              || (paper_size_orientation == "a5.landscape")
+              || (paper_size_orientation == "letter.landscape")
+              || (paper_size_orientation == "legal.landscape")
+            ) {
+              _ltx.pg_break = "\\\\ \\columnbreak\n"; // "\\\\ \\newpage\n";
+            } else { // portrait
+              _ltx.pg_break = "\\clearpage\n";
+            }
+          }
+        }
+      } else if (!(doc_matters.conf_make_meta.make.breaks.empty)) {
+        _ltx.pg_break = "";
+      }
+      return _ltx;
+    }
+    if (obj.metainfo.is_a == "heading") {
+      string _tex_para;
+      latexMarks _ltx = latexMarks();
+      string _pg_break;
+      string _sect;
+      string _post;
+      string _title_add;
+      string _columns = "";
+      switch (obj.metainfo.heading_lev_markup) {
+      case 0: // A == TITLE
+        _pg_break = "\\begin{document}\n";
+        goto default;
+      case 1: // B == part: section heading level
+        _pg_break = "\\clearpage\n";
+        goto default;
+      case 2: // C == part: section heading level
+        _pg_break = "\\clearpage\n";
+        goto default;
+      case 3: // D == part: section heading level
+        _pg_break = "\\clearpage\n";
+        goto default;
+      case 4: // 1 == section
+        _columns = (_part != "bookindex")
+          ? "" : "\n\\br\n\\begin{multicols}{2}";
+        if (doc_matters.conf_make_meta.make.doc_type == "article") {             // defaults for article
+          _ltx.pg_break = "";
+        } else if (doc_matters.conf_make_meta.make.doc_type == "book") {         // defaults for book
+          _ltx.pg_break = "\\clearpage\n";
+        } else {
+          _ltx.pg_break = "\\clearpage\n";
+        }
+        _ltx = manual_breaks(_ltx, "1");
+        _pg_break = _ltx.pg_break;
+        _sect = "section";
+        _post = "";
+        _title_add = format(q"┃
+\markboth{%s}{%s}┃",
+          doc_matters.conf_make_meta.meta.title_full,
+          doc_matters.conf_make_meta.meta.title_full,
+        );
+        goto default;
+      case 5: // 2 == subsection
+        _pg_break = "";
+        // _pg_break = "newpage"; // doubt this is necessary
+        _sect = "subsection";
+        _post = " \\br\n";
+        _title_add = "";
+        goto default;
+      case 6: // 3 == subsubsection
+        _pg_break = "";
+        // _pg_break = "newpage"; // doubt this is necessary
+        _sect = "subsubsection";
+        _post = " \\br\n";
+        _title_add = "";
+        goto default;
+      case 7: // 4 == paragraph
+        _pg_break = "";
+        // _pg_break = "newpage"; // doubt this is necessary
+        _sect = "paragraph";
+        _post = " \\br\n";
+        _title_add = "";
+        goto default;
+      case 8: // 5 == subparagraph
+        _pg_break = "";
+        // _pg_break = "newpage"; // doubt this is necessary
+        _sect = "subparagraph";
+        _post = " \\br\n";
+        _title_add = "";
+        goto default;
+      default:
+        if (obj.metainfo.heading_lev_markup == 0) {
+          _tex_para = q"┃
+\begin{document}
+\thispagestyle{empty}
+\title{%s%s}
+\author{ \textnormal{%s}}
+\date{\begin{tiny}%s\end{tiny}}
+\maketitle
+\addcontentsline{toc}{part}{%s}
+\newpage
+\pagestyle{fancy}
+\pagenumbering{alph}
+\setcounter{page}{1}
+\markboth{%s}{%s}
+\br\linebreak Copyright {\begin{small}{\copyright\end{small}} %s \br\linebreak
+%s
+\clearpage┃";
+          _txt = format(_tex_para,
+            (doc_matters.conf_make_meta.meta.title_main).sp_char_esc_txt,
+            doc_matters.conf_make_meta.meta.title_subtitle.empty ? ""
+            : " \\\\ - \\\\ " ~ (doc_matters.conf_make_meta.meta.title_subtitle).sp_char_esc_txt,
+            (doc_matters.conf_make_meta.meta.creator_author).sp_char_esc_txt,
+            (doc_matters.conf_make_meta.meta.date_published).sp_char_esc_txt,
+            (doc_matters.conf_make_meta.meta.title_main).sp_char_esc_txt,
+            (doc_matters.conf_make_meta.meta.title_main).sp_char_esc_txt,
+            (doc_matters.conf_make_meta.meta.title_full).sp_char_esc_txt,
+            (doc_matters.conf_make_meta.meta.rights_copyright).sp_char_esc_txt.marked_linebreaks_newlines,
+            (doc_matters.conf_make_meta.meta.rights_license).sp_char_esc_txt.marked_linebreaks_newlines,
+          );
+        } else if (obj.metainfo.heading_lev_markup < 4) {
+          if (!(_txt.footnotes.strip == "Endnotes")) {
+            _tex_para = q"┃%s\part*{\ocn{%s}%s}
+\addcontentsline{toc}{part}{%s}
+\markboth{%s}┃";
+            _txt = format(_tex_para,
+              _pg_break,
+              obj.metainfo.object_number,
+              _txt.strip.footnotes,
+              _txt.strip.remove_footnotes,
+              (doc_matters.conf_make_meta.meta.title_main).sp_char_esc_txt,
+            );
+          }
+        } else if (obj.metainfo.heading_lev_markup > 3) {
+          if (obj.metainfo.heading_lev_markup == 4
+          && _txt.match(regex(r"^Table of Contents$"))) {
+            _tex_para = q"┃
+\pagenumbering{arabic}
+\setcounter{page}{1}
+\markboth{ }{ }
+\part*{\ocn{1}%s \newline %s}
+
+\clearpage
+\pagenumbering{roman}
+\setcounter{page}{1}
+\renewcommand{\contentsname}{}
+\tableofcontents
+
+\clearpage
+\pagenumbering{arabic}
+\setcounter{page}{2}
+\clearpage
+\markboth{%s}{%s}
+%% \null
+\clearpage
+\setcounter{page}{2}┃";
+            _txt = format(_tex_para,
+              (doc_matters.conf_make_meta.meta.title_full).sp_char_esc_txt,
+              (doc_matters.conf_make_meta.meta.creator_author).sp_char_esc_txt,
+              (doc_matters.conf_make_meta.meta.title_full).sp_char_esc_txt,
+              (doc_matters.conf_make_meta.meta.title_full).sp_char_esc_txt,
+            );
+          } else if (obj.metainfo.heading_lev_markup == 4
+            && _part == "bookindex"
+            && _txt.match(regex(r"^Index$"))
+          ) {
+            _tex_para = q"┃%s\%s*{\ocn{%s}%s}
+\addcontentsline{toc}{%s}{%s%s}%s%s┃";
+            _txt = format(_tex_para,
+              _pg_break,
+              _sect.strip,
+              obj.metainfo.object_number,
+              _txt.footnotes.strip,
+              _sect,
+              _txt.remove_footnotes.strip,
+              _post,
+              _title_add,
+              _columns,
+            );
+          } else if (obj.metainfo.dummy_heading
+            && obj.metainfo.heading_lev_markup == 4
+          ) { /+ dummy headings completely omitted +/
+            _txt = "";
+          } else {
+            _tex_para = q"┃%s\%s*{\ocn{%s}%s}
+\addcontentsline{toc}{%s}{%s%s}%s┃";
+            _txt = format(_tex_para,
+              _pg_break,
+              _sect.strip,
+              obj.metainfo.object_number,
+              _txt.footnotes.strip,
+              _sect,
+              _txt.remove_footnotes.strip,
+              _post,
+              _title_add,
+            );
+          }
+        }
+        break;
+      }
+    }
+    return _txt.strip;
+  }
+  string group(O,M)(
+    string      _txt,
+    O           obj,
+    M           doc_matters,
+  ) {
+    if (obj.metainfo.is_a == "group") {
+      string _tex_para;
+      _tex_para = q"┃\ocn{%s}\objGroupOpen
+%s
+\objGroupClose
+┃";
+      _txt  = format(_tex_para,
+        obj.metainfo.object_number,
+        _txt.footnotes.split(rgx.br_line_spaced).join("\\brl{1}").strip // provides more control (more noise, not as tidy)
+        // _txt.footnotes.split(rgx.br_line_spaced).join("") // this works using a line-space, looks tidy, keep ref.
+      ).strip;
+    }
+    return _txt;
+  }
+  string block(O,M)(
+    string      _txt,
+    O           obj,
+    M           doc_matters,
+  ) {
+    if (obj.metainfo.is_a == "block") {
+      string _tex_para;
+      _tex_para = q"┃\ocn{%s}\objBlockOpen
+%s
+\objBlockClose
+┃";
+      _txt = format(_tex_para,
+        obj.metainfo.object_number,
+        _txt.nbsp_char.footnotes.split(rgx.br_linebreaks_newlines).join("\\br\n").strip
+      ).strip;
+    }
+    return _txt;
+  }
+  string verse(O,M)(
+    string      _txt,
+    O           obj,
+    M           doc_matters,
+  ) {
+    if (obj.metainfo.is_a == "verse") {
+      string _tex_para;
+      _tex_para = q"┃\ocn{%s}\objPoemVerseOpen
+%s
+\objPoemVerseClose
+┃";
+      _txt  = format(_tex_para,
+        obj.metainfo.object_number,
+        _txt.spaces_to_nbsp.footnotes.split(rgx.br_linebreaks_newlines).join("\\br\n").strip
+      ).strip;
+    }
+    return _txt;
+  }
+  string codeblock(O,M)(
+    string      _txt,
+    O           obj,
+    M           doc_matters,
+  ) {
+    if (obj.metainfo.is_a == "code") {
+      string _tex_para;
+      _tex_para = q"┃\ocn{%s}\begin{objCodeBlock}\begin{lstlisting}
+%s
+\end{lstlisting}\end{objCodeBlock}
+┃";
+      _txt  = format(_tex_para,
+        obj.metainfo.object_number,
+        _txt.nbsp_char_to_space
+      ).strip;
+    }
+    return _txt;
+  }
+  auto tablarize(O)(
+    string            _txt,
+    const        O    obj,
+  ) {
+    string[] _table_rows = (_txt).split(rgx.table_delimiter_row);
+    string[] _table_cols;
+    string _table;
+    string _tablenote;
+    foreach(row_idx, row; _table_rows) {
+      _table_cols = row.split(rgx.table_delimiter_col);
+      _table ~= "";
+      foreach(col_idx, cell; _table_cols) {
+        if ((_table_cols.length == 1)
+        && (_table_rows.length <= row_idx+2)) { // check row_idx+2 (rather than == ++row_idx)
+          _tablenote ~= cell;
+        } else {
+          // // _table ~= "\\bfseries ";
+          // _table ~= cell;
+          // _table ~= (_table_cols.length > (col_idx + 1)) ? "&" : "";
+          _table ~= format(q"┃%s%s┃",
+            cell,
+            (_table_cols.length > (col_idx + 1)) ? "&" : ""
+          );
+        }
+      }
+      _table ~= "\\\\";
+    }
+    Tuple!(string, string) t = tuple(
+      _table,
+      _tablenote,
+    );
+    return t;
+  }
+  string table(O,M)(
+    string      _txt,
+    O           obj,
+    M           doc_matters,
+    string      paper_size_orientation,
+  ) {
+    if (obj.metainfo.is_a == "table") {
+      auto _t = _txt.tablarize(obj);
+      string _table = _t[0];
+      string _t_n = _t[1];
+      uint pw = 0;
+      switch (paper_size_orientation) {
+      case "a4.portrait":      pw = (paper.a4.portrait.w      - 20); break;
+      case "a4.landscape":     pw = (paper.a4.landscape.w     - 20); break;
+      case "b4.portrait":      pw = (paper.b4.portrait.w      - 20); break;
+      case "b4.landscape":     pw = (paper.b4.landscape.w     - 20); break;
+      case "a5.portrait":      pw = (paper.a5.portrait.w      - 20); break;
+      case "a5.landscape":     pw = (paper.a5.landscape.w     - 20); break;
+      case "letter.portrait":  pw = (paper.letter.portrait.w  - 20); break;
+      case "letter.landscape": pw = (paper.letter.landscape.w - 20); break;
+      case "legal.portrait":   pw = (paper.legal.portrait.w   - 20); break;
+      case "legal.landscape":  pw = (paper.legal.landscape.w  - 20); break;
+      default:                 pw = 0;                               break;
+      }
+      // auto textwidth = (pw - 24);
+      string _colw = "";
+      foreach (w; obj.table.column_widths) {
+        _colw ~= format(q"┃p{%.0fmm}┃",
+          (w * pw / 100)
+          // (w * (pw - 24)/ 100)
+          // (w * textwidth / 100)
+        );
+      }
+      string _tex_para;
+      _tex_para = q"┃\ocn{%s}\objTableOpen{%s}
+%s
+\objTableClose
+┃";
+      _txt  = format(_tex_para,
+        obj.metainfo.object_number,
+        _colw,
+        _table,
+      ).strip;
+    }
+    return _txt;
+  }
+  string bullets_and_indentation(O)(
+    string      _txt,
+    O           obj,
+  ) {
+    string _tex_para;
+    string _hang; string _indent;
+    int _paper_margin = -10;
+    int _indent_increment = 8; // 5; 10;
+    if (obj.attrib.bullet) {
+      int _bullet_space = 5;
+      _indent = ((obj.attrib.indent_base * _indent_increment) + _paper_margin + _bullet_space).to!string;
+      _txt  = format(q"┃\begin{Bullet}{%smm}%s\end{Bullet}┃",
+        _indent,
+        _txt.footnotes
+      ).strip;
+    } else if (
+      obj.attrib.indent_base != 0
+      && obj.attrib.indent_base == obj.attrib.indent_hang
+    ) {
+      _indent = ((obj.attrib.indent_base * _indent_increment) + _paper_margin).to!string;
+      _tex_para = q"┃\begin{ParagraphIndent}{%smm}%s \end{ParagraphIndent}┃";
+      _txt = format(_tex_para,
+        _indent,
+        _txt.footnotes
+      ).strip;
+    } else if (
+      obj.attrib.indent_base != 0
+      || obj.attrib.indent_hang != 0
+    ) {
+      _indent = ((obj.attrib.indent_base * _indent_increment) + _paper_margin).to!string;
+      _hang = (((obj.attrib.indent_hang - obj.attrib.indent_base) * _indent_increment)).to!string;
+      _tex_para = q"┃\begin{ParagraphHang}{%smm}{%smm}%s \end{ParagraphHang}┃";
+      _txt = format(_tex_para,
+        _indent, _hang,
+        _txt.footnotes.split(rgx.br_linebreaks_newlines).join("\\br\n")
+      ).strip;
+    }
+    return _txt;
+  }
+  string latex_head(M)(
+    M      doc_matters,
+    string paper_size_orientation,
+  ) {
+    struct paperTypeLatex {
+      string a4_portrait;
+      string a4_landscape;
+      string b4_portrait;
+      string b4_landscape;
+      string a5_portrait;
+      string a5_landscape;
+      string us_letter_portrait;
+      string us_letter_landscape;
+      string us_legal_portrait;
+      string us_legal_landscape;
+    }
+    auto paper_type_latex           = paperTypeLatex();
+    string _footer(M)(M doc_matters) {
+      string _ft = "\\lfoot[\\textrm{\\thepage}]";
+      string _ft_1 = format(q"┃{\tiny \href{%s}{%s}}┃", "https://sisudoc.org", "SiSU",);
+      string _ft_2 = format(q"┃
+    \cfoot{\href{%s}{%s}}┃", "https://git.sisudoc.org", "git",);
+      if (doc_matters.conf_make_meta.make.footer.length > 0) {
+        if (doc_matters.conf_make_meta.make.footer.length > 0) {
+          if (doc_matters.conf_make_meta.make.footer[0].matchAll(rgx.inline_link)) {
+            _ft ~= doc_matters.conf_make_meta.make.footer[0]
+              .replace(rgx.inline_link, "{\\tiny \\href{$2}{$1}}");
+          } else {
+            _ft ~= _ft_1;
+          }
+        }
+        if (doc_matters.conf_make_meta.make.footer.length > 1) {
+          if (doc_matters.conf_make_meta.make.footer[1].matchAll(rgx.inline_link)) {
+            _ft ~= doc_matters.conf_make_meta.make.footer[1]
+              .replace(rgx.inline_link, "\n\\cfoot{\\href{$2}{$1}}");
+          } else {
+            _ft ~= _ft_2;
+          }
+        }
+      } else {
+        _ft ~= _ft_1;
+        _ft ~= _ft_2;
+      }
+      return _ft;
+    }
+    struct paperMargins {
+      string portrait;
+      string landscape;
+    }
+    auto margins           = paperMargins();
+    struct columnsMulti {
+      string portrait;
+      string landscape;
+    }
+    auto multicol           = columnsMulti();
+    multicol.landscape    = "";
+    struct colorLinks {
+      string mono;
+      string color;
+    }
+    auto links           = colorLinks();
+    links.mono    = format(q"┃
+  colorlinks=true,
+  urlcolor=black,
+  filecolor=black,
+  linkcolor=black,
+  citecolor=black,
+┃",
+    );
+    links.color    = format(q"┃
+  colorlinks=true,
+  urlcolor=myblue,    %% \href{...}{...}   external url
+  filecolor=mygreen,  %% \href{...}        local file
+  linkcolor=myred,    %% \href{...} and \pageref{...}
+  citecolor=black,
+┃",
+    );
+    string set_paper(P)(P paper_set,) {
+      string paper_type_description;
+      if (paper_set.is_portrait) {
+        paper_type_description = format(q"┃
+\documentclass[%s,%s,titlepage,makeidx]{scrartcl}
+\usepackage{%s}
+\usepackage[%s,%s]{babel}
+\usepackage[autostyle, english = american]{csquotes}
+%% \MakeOuterQuote{"} %% not required, using '' as quote delimiter
+\selectlanguage{%s}
+\hypersetup{
+  pdftitle={%s},
+  pdfauthor={%s},
+  pdfsubject={%s},
+}
+\usepackage{fancyhdr}
+\lhead[ ]{ }
+\chead[ \fancyplain{} \bfseries \footnotesize \leftmark ]{ \fancyplain{} \bfseries \footnotesize \rightmark }
+\rhead[ ]{ }
+%s
+\rfoot[\tiny \href{}{}]{\textrm{\thepage}}
+        ┃",
+          paper_set.fontsize,
+          paper_set.papersize,
+          "./sty/" ~ paper_set.stylesheet,
+          lang.codes[doc_matters.src.language]["xlp"],
+          "english",
+          lang.codes[doc_matters.src.language]["xlp"],
+          doc_matters.conf_make_meta.meta.title_full.strip,
+          doc_matters.conf_make_meta.meta.creator_author.strip,
+          doc_matters.conf_make_meta.meta.classify_subject.strip,
+          _footer(doc_matters),
+        );
+      } else {
+        paper_type_description = format(q"┃
+\documentclass[%s,%s,landscape,titlepage,twocolumn,makeidx]{scrartcl}
+\usepackage{%s}
+\usepackage[english]{babel}
+%% \usepackage{polyglossia}
+\setmainlanguage{%s}
+\setotherlanguage{%s}
+\selectlanguage{%s}
+\hypersetup{
+  pdftitle={%s},
+  pdfauthor={%s},
+  pdfsubject={%s},
+}
+\usepackage{fancyhdr}
+\lhead[ ]{ }
+\chead[ \fancyplain{} \bfseries \footnotesize \leftmark ]{ \fancyplain{} \bfseries \footnotesize \rightmark }
+\rhead[ ]{ }
+%s
+\rfoot[\tiny \href{}{}]{\textrm{\thepage}}
+        ┃",
+          paper_set.fontsize,
+          paper_set.papersize,
+          "./sty/" ~ paper_set.stylesheet,
+          lang.codes[doc_matters.src.language]["xlp"],
+          "english",
+          lang.codes[doc_matters.src.language]["xlp"],
+          doc_matters.conf_make_meta.meta.title_full.strip,
+          doc_matters.conf_make_meta.meta.creator_author.strip,
+          doc_matters.conf_make_meta.meta.classify_subject.strip,
+          _footer(doc_matters),
+        );
+      }
+      return paper_type_description;
+    }
+    string paper_size_orientation_latex;
+    switch (paper_size_orientation) {
+      case "a4.portrait":      paper_size_orientation_latex = set_paper(paper.a4.portrait);      break;
+      case "a4.landscape":     paper_size_orientation_latex = set_paper(paper.a4.landscape);     break;
+      case "b4.portrait":      paper_size_orientation_latex = set_paper(paper.b4.portrait);      break;
+      case "b4.landscape":     paper_size_orientation_latex = set_paper(paper.b4.landscape);     break;
+      case "a5.portrait":      paper_size_orientation_latex = set_paper(paper.a5.portrait);      break;
+      case "a5.landscape":     paper_size_orientation_latex = set_paper(paper.a5.landscape);     break;
+      case "letter.portrait":  paper_size_orientation_latex = set_paper(paper.letter.portrait);  break;
+      case "letter.landscape": paper_size_orientation_latex = set_paper(paper.letter.landscape); break;
+      case "legal.portrait":   paper_size_orientation_latex = set_paper(paper.legal.portrait);   break;
+      case "legal.landscape":  paper_size_orientation_latex = set_paper(paper.legal.landscape);  break;
+      default:                 paper_size_orientation_latex = paper_type_latex.a4_portrait;
+    }
+    string links_mono_or_color_set = links.mono.strip;
+    if (
+      (doc_matters.opt.action.latex_color_links)
+      || (paper_size_orientation ==
+        "a4.landscape" ||
+        "a5.landscape" ||
+        "b4.landscape" ||
+        "letter.landscape" ||
+        "legal.landscape")
+    ){
+      links_mono_or_color_set = links.mono.strip;
+    }
+    string _latex_head = format(q"┃%%%% spine LaTeX output%s%s
+%%%% %s %s
+%s
+%s
+    ┃",
+      doc_matters.opt.action.generated_by ? " " ~ doc_matters.generator_program.name_version_and_compiler : "",
+      doc_matters.opt.action.generated_by ? " (generated " ~  doc_matters.generator_program.time_output_generated ~ ")" : "",
+      doc_matters.generator_program.project_name.strip,
+      doc_matters.generator_program.url_home.strip,
+      paper_size_orientation_latex.strip,
+      margins.portrait.strip,
+    );
+    return _latex_head.strip;
+  }
+  string latex_body(D,M)(
+    const  D      doc_abstraction,
+           M      doc_matters,
+           string paper_size_orientation,
+  ) {
+    string _latex_body = "";
+    bool _multicolumns = false;
+    string _txt;
+    foreach (part; doc_matters.has.keys_seq.latex) {
+      foreach (obj; doc_abstraction[part]) {
+        switch (obj.metainfo.is_of_part) {
+        case "frontmatter":              assert(part == "head" || "toc");
+          _txt = obj.text
+            .sp_char_esc(obj)
+            .fontface;
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              _txt = _txt.heading(obj, doc_matters, paper_size_orientation);
+              goto default;
+            case "toc":
+              break;
+            default:
+              _latex_body ~= _txt ~ "\n\n";
+              _txt = "";
+              break;
+            }
+            break;
+          default: break;
+          }
+          break;
+        case "body":                     assert(part == "body" || "head"); // surprise
+          _txt = obj.text
+            .sp_char_esc(obj)
+            .fontface;
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              _txt = _txt.heading(obj, doc_matters, paper_size_orientation);
+              goto default;
+            case "para":
+              _txt = _txt.para(obj)
+                .bullets_and_indentation(obj)
+                .links_and_images(obj, doc_matters);
+              goto default;
+            default:
+              _latex_body ~= _txt ~ "\n\n";
+              _txt = "";
+              break;
+            }
+            break;
+          case "block":
+            switch (obj.metainfo.is_a) {
+            case "quote":
+              goto default; // TODO
+            case "group": /+ (hardspaces not honored) [remove any hardspace marker] +/
+              _txt = _txt.group(obj, doc_matters)
+                .links_and_images(obj, doc_matters);
+              goto default;
+            case "block": /+ (hardspace honored) \hardspace +/
+              _txt = _txt.block(obj, doc_matters)
+                .links_and_images(obj, doc_matters);
+              goto default;
+            case "verse": /+ (hardspace honored) \hardspace +/
+              _txt = _txt.verse(obj, doc_matters)
+                .links_and_images(obj, doc_matters);
+              goto default;
+            case "code": /+ (hardspace honored) \begin{lstlisting} clear hardspace marker +/
+              _txt = _txt.codeblock(obj, doc_matters);
+              goto default;
+            case "table":
+              _txt = _txt.table(obj, doc_matters, paper_size_orientation);
+              goto default; // TODO
+            default:
+              _latex_body ~= _txt ~ "\n\n";
+              _txt = "";
+              break;
+            }
+            break;
+          default: break;
+          }
+          break;
+        case "backmatter":
+          assert(part == "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          _txt = obj.text
+            .sp_char_esc(obj)
+            .fontface;
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            if (part != "bookindex" && _multicolumns) {
+              _multicolumns = false;
+              _latex_body ~= "\n\\end{multicols}\n";
+            }
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              if (part == "bookindex") {
+                _multicolumns = true;
+              }
+              _txt = _txt.heading(obj, doc_matters, paper_size_orientation, part);
+              goto default;
+            case "endnote":              assert(part == "endnotes");
+              /* uncomment code to reinstate endnotes in endnote section */
+              // _txt = _txt.para(obj)
+              //   .bullets_and_indentation(obj)
+              //   .links_and_images(obj, doc_matters);
+              // goto default;
+              break;
+            case "glossary":             assert(part == "glossary");
+              _txt = _txt.para(obj)
+                .bullets_and_indentation(obj)
+                .links_and_images(obj, doc_matters);
+              goto default;
+            case "bibliography":         assert(part == "bibliography");
+              _txt = _txt.para(obj)
+                .bullets_and_indentation(obj);
+              goto default;
+            case "bookindex":            assert(part == "bookindex");
+              /+ two column, special section +/
+              _txt = _txt.bookindex(obj)
+                .links_and_images(obj, doc_matters);
+              goto default;
+            case "blurb":                assert(part == "blurb");
+              _txt = _txt.para(obj)
+                .bullets_and_indentation(obj)
+                .links_and_images(obj, doc_matters);
+              goto default;
+            default:
+              _latex_body ~= (part == "bookindex" && obj.metainfo.is_a != "heading")
+                ? _txt : (_txt ~ "\n\n");
+              _txt = "";
+              break;
+            }
+            break;
+          default: break;
+          }
+          break;
+        case "comment":
+          break;
+        default:
+          { /+ debug +/
+            if (doc_matters.opt.action.debug_do_latex
+            && doc_matters.opt.action.vox_gt1) {
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.text);
+            }
+          }
+          break;
+        }
+      }
+    }
+    if (_multicolumns) {
+      _multicolumns = false;
+      _latex_body ~= "\n\\end{multicols}\n";
+    }
+    return _latex_body;
+  }
+  string latex_tail(M)(
+    M      doc_matters,
+    string paper_size_orientation,
+  ) {
+    string _latex_tail = format(q"┃
+
+\end{document}
+  ┃",
+    // doc_matters.conf_make_meta.meta.title_full,
+    // doc_matters.conf_make_meta.meta.creator_author,
+  );
+    return _latex_tail;
+  }
+  void writeOutputLaTeX(T,M)(
+    const T      latex_content,
+          M      doc_matters,
+          string paper_size_orientation,
+  ) {
+    auto pth_latex = spinePathsLaTeX(doc_matters);
+    try {
+      { /+ debug +/
+        if (doc_matters.opt.action.debug_do_latex
+        && doc_matters.opt.action.vox_gt1) {
+          writeln(latex_content.head);
+          writeln(latex_content.content);
+          writeln(latex_content.tail);
+        }
+      }
+      if (!exists(pth_latex.latex_path_stuff)) {
+        (pth_latex.latex_path_stuff).mkdirRecurse;
+      }
+      if (doc_matters.opt.action.vox_gt0) {
+        writeln(" ", pth_latex.latex_file_with_path(paper_size_orientation));
+      }
+      {
+        auto f = File(pth_latex.latex_file_with_path(paper_size_orientation), "w");
+        f.writeln(latex_content.head);
+        f.writeln(latex_content.content);
+        f.writeln(latex_content.tail);
+        foreach (image; doc_matters.srcs.image_list) {
+          string fn_src_in = doc_matters.src.image_dir_path ~ "/" ~ image;
+          string fn_src_out_file = pth_latex.latex_path_stuff ~ "/" ~ image;
+          if (exists(fn_src_in)) {
+            fn_src_in.copy(fn_src_out_file);
+          }
+        }
+      }
+      if (!exists(pth_latex.latex_path_stuff ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_latex.latex_path_stuff ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url
+            ,
+          "../../index.html",
+        ));
+      }
+      // should be in latex init and done just once, doc_matters not passed there though
+      if (!exists(pth_latex.base ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_latex.base ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+          "../index.html",
+        ));
+      }
+      if (!exists(pth_latex.base_sty ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_latex.base_sty ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+          "../../index.html",
+        ));
+      }
+    } catch (ErrnoException ex) {
+      // handle error
+    }
+  }
+  void outputLaTeX(D,M)(
+    const    D   doc_abstraction,
+             M   doc_matters,
+  ) {
+    struct LaTeX {
+      string head;
+      string content;
+      string tail;
+    }
+    auto latex             = LaTeX();
+    foreach (paper_size_orientation; doc_matters.conf_make_meta.conf.set_papersize) {
+      latex.head           = latex_head(doc_matters, paper_size_orientation);
+      latex.content        = latex_body(doc_abstraction, doc_matters, paper_size_orientation);
+      latex.tail           = latex_tail(doc_matters, paper_size_orientation);
+      latex.writeOutputLaTeX(doc_matters, paper_size_orientation);
+    }
+  }
+}
+template outputLaTeXstyInit() {
+  import sisudoc.io_out;
+  auto paper = paperLaTeX;
+  void writeOutputLaTeXstyStatic(
+    string latex_sty,
+    string output_dir,
+    string filename,
+  ) {
+    if ((output_dir.length > 0)
+      && isValidPath(output_dir)
+    ) {
+      auto pth_latex = spinePathsLaTeXsty(output_dir);
+      try {
+        import std.file;
+        if (!exists(pth_latex.base_sty)) {
+          (pth_latex.base_sty).mkdirRecurse;
+        }
+        {
+          auto f = File(pth_latex.latex_document_header_sty(filename), "w");
+          f.writeln(latex_sty);
+        }
+      } catch (ErrnoException ex) {
+        // handle error
+      }
+    }
+  }
+  void outputLaTeXstyInit()(
+    string output_dir,
+    bool   generated_by,
+    string name_version_and_compiler,
+    string time_output_generated,
+  ) {
+    string latex_sty = outputLaTeXstyStatic!()(generated_by, name_version_and_compiler, time_output_generated);
+    latex_sty.writeOutputLaTeXstyStatic(output_dir, "spineShared.sty");
+    auto sty_a4p      = paper.a4.portrait;
+    auto latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_a4p, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_a4p.stylesheet ~ ".sty");
+    auto sty_a4l      = paper.a4.landscape;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_a4l, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_a4l.stylesheet ~ ".sty");
+    auto sty_b4p      = paper.b4.portrait;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_b4p, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_b4p.stylesheet ~ ".sty");
+    auto sty_b4l      = paper.b4.landscape;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_b4l, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_b4l.stylesheet ~ ".sty");
+    auto sty_a5p      = paper.a5.portrait;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_a5p, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_a5p.stylesheet ~ ".sty");
+    auto sty_a5l      = paper.a5.landscape;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_a5l, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_a5l.stylesheet ~ ".sty");
+    auto sty_letter_p  = paper.letter.portrait;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_letter_p, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_letter_p.stylesheet ~ ".sty");
+    auto sty_letter_l  = paper.letter.landscape;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_letter_l, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_letter_l.stylesheet ~ ".sty");
+    auto sty_legal_p   = paper.legal.portrait;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_legal_p, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_legal_p.stylesheet ~ ".sty");
+    auto sty_legal_l   = paper.legal.landscape;
+    latex_papersize_and_orientation = outputLaTeXstyPaperSizeAndOrientation!()(sty_legal_l, generated_by, name_version_and_compiler, time_output_generated);
+    latex_papersize_and_orientation.writeOutputLaTeXstyStatic(output_dir, sty_legal_l.stylesheet ~ ".sty");
+  }
+}
+template outputLaTeXstyStatic() {
+  import
+    std.format,
+    std.conv : to;
+  string outputLaTeXstyStatic(
+    bool   generated_by,
+    string name_version_and_compiler,
+    string time_output_generated,
+  ) {
+    string latex_sty = format(q"┃%%%% spine LaTeX output%s%s
+%% - called by the .sty containing the paper dimensions (size and orientation) to be used
+%% - spineShared.sty used by all spine documents (called indirectly)
+\ProvidesPackage{./sty/spineShared}
+\usepackage{multicol}
+\setlength{\marginparsep}{4mm}
+\setlength{\marginparwidth}{8mm}
+\usepackage[scaled]{dejavu}
+\renewcommand*\familydefault{\sfdefault}
+\usepackage{inconsolata}
+\usepackage[T1]{fontenc}
+\usepackage{newunicodechar}
+%% \usepackage[utf8]{inputenc}
+\usepackage{alltt}
+\usepackage[
+  unicode=true,
+	pdfusetitle,
+  pdfsubject={},
+  pdfkeywords={},         %% keywords list {} {} {},
+  pdftoolbar=true,
+  pdfmenubar=true,
+  pdfwindowui=true,
+  pdffitwindow=false,     %% window fit to page when opened
+  pdfstartview={FitH},    %% fits the width of the page to the window
+  pdfnewwindow=true,      %% links in new window
+  pdfborder={0 0 1},
+  plainpages=false,       %% was true
+  bookmarks=true,
+  bookmarksopen=false,
+  bookmarksnumbered=false,
+  backref=false,
+  breaklinks=false,
+  colorlinks=true,
+  urlcolor=black,
+  filecolor=black,
+  linkcolor=black,
+  citecolor=black,        %% links_mono_or_color_set
+]{hyperref}
+\PassOptionsToPackage{hyphens}{url}\usepackage{hyperref}
+\usepackage[usenames]{color}
+\definecolor{myblack}{rgb}{0,0,0}
+\definecolor{myred}{rgb}{0.75,0,0}
+\definecolor{mygreen}{rgb}{0,0.5,0}
+\definecolor{myblue}{rgb}{0,0,0.5}
+\definecolor{mywhite}{rgb}{1,1,1}
+\usepackage{textcomp}
+\usepackage[parfill]{parskip}
+\usepackage[normalem]{ulem}
+\usepackage{soul}
+\usepackage{longtable}
+\usepackage{graphicx}
+\usepackage[tc]{titlepic}
+\usepackage{amssymb}
+\usepackage{amsmath}
+\usepackage[cm]{sfmath}
+\usepackage{underscore}
+\usepackage{listings}
+\setcounter{secnumdepth}{2}
+\setcounter{tocdepth}{4}
+\usepackage{bookmark}
+\usepackage{microtype}
+\makeatletter
+\usepackage[multiple,ragged]{footmisc}
+\setlength\footnotemargin{12pt}
+\usepackage[para]{manyfoot}
+\DeclareNewFootnote{A}
+\makeatother
+\chardef\txtbullet="2022
+\chardef\tilde="7E
+\def\asterisk{{\rm \char42} }
+\definecolor{Light}{gray}{.92}
+\definecolor{listinggray}{gray}{0.9}
+\definecolor{lbcolor}{rgb}{0.9,0.9,0.9}
+\lstset{
+  backgroundcolor=\color{lbcolor},
+  tabsize=4,
+  rulecolor=,
+  language=,
+  basicstyle={\ttfamily\scriptsize},
+  upquote=true,
+  columns=fixed,
+  showstringspaces=false,
+  extendedchars=true,
+  breaklines=true,
+  prebreak = \raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
+  frame=single,
+  showtabs=false,
+  showspaces=false,
+  showstringspaces=false,
+  identifierstyle=\ttfamily,
+  keywordstyle=\color[rgb]{0,0,1},
+  commentstyle=\color[rgb]{0.133,0.545,0.133},
+  stringstyle=\color[rgb]{0.627,0.126,0.941},
+}
+\DeclareTOCStyleEntry[numwidth+=8pt]{part}{part}
+\DeclareTOCStyleEntry[numwidth+=4pt]{section}{section}
+\DeclareTOCStyleEntry[numwidth+=3pt]{section}{paragraph}
+\DeclareTOCStyleEntry[numwidth+=3pt]{section}{subparagraph}
+\DeclareTOCStyleEntry[numwidth+=3pt]{section}{subsection}
+\DeclareTOCStyleEntries[indent+=4pt]{section}{section,subsection,subsubsection}
+\DeclareTOCStyleEntries[numwidth+=3pt]{section}{paragraph,subparagraph}
+\newenvironment{ParagraphIndent}[1]{%%
+  \begin{list}{}{%%
+    \setlength\topsep{0pt}%%
+    \addtolength{\leftmargin}{#1}
+    \setlength\parsep{0pt plus 1pt}%%
+  }
+  \item[]
+} {\end{list}}
+\newenvironment{ParagraphHang}[2]{%%
+  \begin{list}{}{%%
+    \setlength\topsep{0pt}%%
+    \addtolength{\leftmargin}{#1}
+    \itemindent=#2
+    \setlength\parsep{0pt plus 1pt}%%
+  }
+  \item[]
+} {\end{list}}
+\newenvironment{Bullet}[1]{%%
+  \begin{list}{}{%%
+    \setlength\topsep{0pt}%%
+    \addtolength{\leftmargin}{#1}
+    \itemindent=-1em
+    \setlength\parsep{0pt plus 1pt}%%
+  }
+  \item[]
+  $\txtbullet$\hspace{\enspace}
+} {\end{list}}
+\newcommand{\monosp}[1]{\normaltext\ttfamily\texbackslash#1}
+\newcommand{\br}{\hfill\break}
+\newcommand{\brl}[1]{%%
+  \ifx&#1&%%
+    \hfill\break
+  \else
+    \vspace{#1ex}
+  \fi
+}
+\newcommand{\brln}{\hspace*{\fill}\linebreak}
+\newcommand{\objBlockOpen}{%%
+  \setlength{\parskip}{0.5ex plus0.2ex minus0.1ex}\raggedright
+  \begin{footnotesize}
+}
+\newcommand{\objBlockClose}{%%
+  \end{footnotesize}
+  \setlength{\parskip}{1ex plus0.5ex minus0.2ex}
+}
+\newcommand{\objGroupOpen}{%%
+  \setlength{\parskip}{0.5ex plus0.2ex minus0.1ex}
+  \begin{footnotesize}
+}
+\newcommand{\objGroupClose}{%%
+  \end{footnotesize}
+}
+\newcommand{\objPoemVerseOpen}{%%
+  \setlength{\parskip}{0.1ex plus0.1ex minus0.1ex}
+  \begin{footnotesize}
+
+}
+\newcommand{\objPoemVerseClose}{%%
+
+  \end{footnotesize}
+  \setlength{\parskip}{1ex plus0.5ex minus0.2ex}
+  \linebreak
+}
+\newcommand{\parasep}{%%
+  \smallskip \begin{center}*\hspace{2em}*\hspace{2em}*\end{center} \br
+}
+\newcommand{\spaces}[1]{{\hspace*{#1ex}}}
+\newcommand{\s}{\hspace*{1ex}}
+\newcommand{\hardspace}{\hspace*{1ex}}
+\newcommand{\-}{\hspace*{1ex}}
+\newcommand{\caret}{{\^{~}}}
+\newcommand{\pipe}{{\textbar}}
+\newcommand{\curlyOpen}{{}
+\newcommand{\curlyClose}{}}
+\newcommand{\lt}{{UseTextSymbol{OML}{<}}}
+\newcommand{\gt}{{UseTextSymbol{OML}{>}}}
+\newcommand{\slash}{{/}}
+\newcommand{\underscore}{\_}
+\newcommand{\exclaim}{\Verbatim{!}}
+\newcommand{\linktext}[2]{%%
+  {\href{#1}
+  {\;\ulcorner\,\textup{{#2}}\,\lrcorner}}
+}
+\newcommand{\linkurl}[2]{%%
+  \;{\href{#1}
+  {\;\scriptsize\ttfamily\ulcorner\,\textup{{#2}}\,\lrcorner}}
+}
+\newcommand{\link}[2]{%%
+  {\begin{scriptsize}\color{black}\urlstyle{tt}\href{#1}
+  {\;\ulcorner\,{#2}\,\lrcorner}\end{scriptsize}}
+}
+\newcommand{\objCodeBlock}[1]{\normaltext\raggedright\small\ttfamily\texbackslash#1}
+\newcommand{\objCodeOpen}{%%
+  \normaltext\raggedright\small\ttfamily\texbackslash
+  \begin{lstlisting}
+}
+\newcommand{\objCodeClose}{%%
+  \end{lstlisting}
+}
+\newcommand{\ocn}[1]{%%
+  \setlength{\parindent}{0em}
+  \ifx&#1&%% #1 is empty
+    \hspace{-0.5ex}{\marginpar{\begin{tiny}\end{tiny}}}
+  \else%% #1 is nonempty
+    \hspace{-0.5ex}{\marginpar{\begin{tiny}\hspace{0em}\hypertarget{#1}{#1}\end{tiny}}}
+  \fi
+}
+\newcommand{\ocnhold}[1]{%%
+  \begin{tiny}\hspace{0mm}\end{tiny}{\marginpar{\begin{tiny}\hspace{0mm}\hypertarget{#1}{#1}\end{tiny}}}
+}
+\newcommand{\objCodeBlockHold}[1]{\normaltext\raggedright\small\ttfamily\texbackslash#1}
+\newcommand{\objTableOpen}[1]{%%
+  \setlength{\LTleft}{0pt}
+  \setlength{\LTright}{\fill}
+  \begin{tiny}
+  \begin{longtable}{#1}
+}
+\newcommand{\objTableClose}{%%
+  \end{longtable}
+  \end{tiny}
+}
+%% \tolerance=300
+%% \clubpenalty=300
+%% \widowpenalty=300
+%% \usepackage{atbegshi} %% http://ctan.org/pkg/atbegshi         %% (BUG tmp FIX deal with problem, remove first page which is blank)
+%% \AtBeginDocument{\AtBeginShipoutNext{\AtBeginShipoutDiscard}} %% (BUG tmp FIX deal with problem, remove first page which is blank)
+┃",
+  generated_by ? " " ~ name_version_and_compiler : "",
+  generated_by ? " (generated " ~  time_output_generated ~ ")" : "",
+);
+    return latex_sty;
+  }
+}
+template outputLaTeXstyPaperSizeAndOrientation() {
+  import
+    std.format,
+    std.conv : to;
+  auto outputLaTeXstyPaperSizeAndOrientation(P)(
+    P      doc_sty_info,
+    bool   generated_by,
+    string name_version_and_compiler,
+    string time_output_generated,
+  ) {
+    string latex_sty = format(q"┃%%%% spine LaTeX output%s%s
+%% - called by .tex document to set paper dimensions (size and orientation)
+%% - calls spineShared.sty used/shared by all spine documents
+\ProvidesPackage{./sty/%s}
+\usepackage{geometry}
+\geometry{
+  %s,
+  %s,
+  left=%s,
+  right=%s,
+  top=%s,
+  bottom=%s,
+}
+\usepackage{./sty/spineShared}┃",
+  generated_by ? " " ~ name_version_and_compiler : "",
+  generated_by ? " (generated " ~  time_output_generated ~ ")" : "",
+  doc_sty_info.stylesheet,
+  doc_sty_info.papersize,
+  doc_sty_info.orient,
+  doc_sty_info.margin_left,
+  doc_sty_info.margin_right,
+  doc_sty_info.margin_top,
+  doc_sty_info.margin_bottom,
+);
+    return latex_sty;
+  }
+}
diff --git a/src/sisudoc/io_out/metadata.d b/src/sisudoc/io_out/metadata.d
new file mode 100644
index 0000000..0210212
--- /dev/null
+++ b/src/sisudoc/io_out/metadata.d
@@ -0,0 +1,609 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.metadata;
+@safe:
+template outputMetadata() {
+  void outputMetadata(T)( T  doc_matters) {
+    string inline_search_form(M)(
+      M  doc_matters,
+    ) {
+      string o;
+      string _form;
+      if (doc_matters.opt.action.html_link_search) {
+        o = format(q"┃
+        <div class="flex-menu-option">
+          <!-- SiSU Spine Search -->
+          <form action="%s" target="_top" method="POST" accept-charset="UTF-8" id="searchtxt">
+          &nbsp;&nbsp;<font size="2">%s&nbsp;
+          <input type="text" name="sf" size="24" maxlength="255">%s
+          <input type="hidden" name="sml" value="1000">
+          <input type="hidden" name="ec" value="on">
+          <input type="hidden" name="url" value="on">
+          <input type="hidden" name="rt" value="txt">
+          <button type="submit" form="searchtxt" name="fn" value="%s">&nbsp;• ⚏&nbsp;</button>
+          </font></form>
+          <!-- SiSU Spine Search -->
+        </div>
+    <div class="flex-menu-option">
+    <!-- SiSU Spine Search -->
+    <form action="%s" target="_top" method="POST" accept-charset="UTF-8" id="search">
+    <font size="2">
+    <input type="text" name="sf" size="24" maxlength="255">%s
+    <input type="hidden" name="sml" value="1000">
+    <input type="hidden" name="ec" value="on">
+    <input type="hidden" name="url" value="on">
+    <button type="submit" form="search" name="fn" value="%s">• ፨</button>
+    <button type="submit" form="search">㏈ ፨</button>
+    </font></form>
+    <!-- SiSU Spine Search -->
+    </div>┃",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_action,
+        (doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename.empty)
+          ? ""
+          : "\n    <a href=\""
+            ~ doc_matters.conf_make_meta.conf.w_srv_cgi_action
+            ~ "\">&#x1f50e;&nbsp;</a>",
+        (doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename.empty)
+          ? ""
+          : "\n    <input type=\"hidden\" name=\"db\" value=\""
+            ~ doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename
+            ~ "\">",
+        doc_matters.src.filename_base,
+        doc_matters.conf_make_meta.conf.w_srv_cgi_action,
+        (doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename.empty)
+          ? ""
+          : "\n    <input type=\"hidden\" name=\"db\" value=\""
+            ~ doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename
+            ~ "\">",
+        doc_matters.src.filename_base,
+        );
+      } else {
+        o = "";
+      }
+      return o;
+    }
+    import
+      std.file,
+      std.format;
+    import sisudoc.io_out;
+    mixin InternalMarkup;
+    string[] metadata_;
+string theme_dark_0 = format(q"┃
+  body {
+    color                    : #CCCCCC;
+    background               : #000000;
+    background-color         : #000000;
+  }
+  a:link {
+    color                    : #FFFFFF;
+    text-decoration          : none;
+  }
+  a:visited {
+    color                    : #999999;
+    text-decoration          : none;
+  }
+  a:hover {
+    color                    : #000000;
+    background-color         : #555555;
+  }
+  a:hover img {
+    background-color         : #000000;
+  }
+  a:active {
+    color                    : #888888;
+    text-decoration          : underline;
+  }
+  a.lnkicon:link {
+    text-decoration          : none;
+  }
+  a.lnkicon:visited {
+    text-decoration          : none;
+  }
+  a.lnkicon:hover {
+    font-size                : 160%%;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  input {
+    color                    : #FFFFFF;
+    background-color         : #777777;
+  }
+┃");
+string theme_light_0 = format(q"┃
+  body {
+    color                    : #000000;
+    background               : #FFFFFF;
+    background-color         : #FFFFFF;
+  }
+  a:link {
+    color                    : #003399;
+    text-decoration          : none;
+  }
+  a:visited {
+    color                    : #003399;
+    text-decoration          : none;
+  }
+  a:hover {
+    color                    : #000000;
+    background-color         : #f9f9aa;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  a:active {
+    color                    : #003399;
+    text-decoration          : underline;
+  }
+  a.lnkicon:link {
+    text-decoration          : none;
+  }
+  a.lnkicon:visited {
+    text-decoration          : none;
+  }
+  a.lnkicon:hover {
+    font-size                : 160%%;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  input {
+    color                    : #000000;
+    background-color         : #FFFFFF;
+  }
+┃");
+string theme_dark_1 = format(q"┃
+  h1 {
+    color                    : #FFFFFF;
+    background               : #000000;
+  }
+  p.letter {
+    color                    : #FFFFFF;
+    background               : #333333;
+  }
+┃");
+string theme_light_1 = format(q"┃
+  h1 {
+    color                    : #FFFFFF;
+    background               : #1A3A7A;
+  }
+  p.letter {
+    color                    : #FFFFFF;
+    background               : #1A3A7A;
+  }
+┃");
+      metadata_ ~= format(q"┃<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>⌘ Curated metadata - Topics</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta name="dc.title" content= "metadata curate, Authors & Topics - information Structuring Universe, Structured information Serialised Units" />
+<meta name="dc.subject" content= "document structuring, ebook, publishing, PDF, LaTeX, XML, ODF, SQL, postgresql, sqlite, electronic book, electronic publishing, electronic document, electronic citation, data structure, citation systems, granular search, digital library" />
+<meta name="generator" content="spine" />
+<link rel="generator" href="https://sisudoc.org" />
+<link href="./css/curate.css" rel="stylesheet">
+<style TYPE="text/css">
+/* spine curate css default stylesheet */%s
+  .norm, .bold {
+    line-height              : 150%%;
+    margin-left              : 1em;
+    margin-right             : 2em;
+    margin-top               : 10px;
+    margin-bottom            : 0px;
+    text-indent              : 0mm;
+  }
+  p, h0, h1, h2, h3, h4, h5, h6, h7 {
+    display                  : block;
+    font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+    font-size                : 100%%;
+    font-weight              : normal;
+    line-height              : 150%%;
+    /* text-align            : justify; */
+    margin-left              : 1em;
+    text-indent              : 0mm;
+    margin-top               : 2px;
+    margin-bottom            : 2px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  h0, h1, h2, h3, h4, h5, h6, h7 { text-shadow: .2em .2em .3em #999999; }
+  h1 {
+    font-size                : 120%%;
+    font-weight              : bold;
+    color                    : #FFFFFF;
+    background               : #000088;
+    margin-left              : 0em;
+  }
+  p.work {
+    font-size                : 80%%;
+    margin-left              : 5em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.author {
+    font-size                : 100%%;
+    margin-left              : 2em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.publication {
+    font-size                : 80%%;
+    margin-left              : 4em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.letter {
+    font-weight              : bold;
+    font-size                : 60%%;
+    margin-left              : 1em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.icons, .icons_center {
+    font-size                : 100%%;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+  }
+  p.icons {
+    text-align               : left;
+  }
+  p.lev0 {
+    font-size                : 120%%;
+    margin-left              : 1em;
+  }
+  p.lev1 {
+    font-size                : 110%%;
+    margin-left              : 2em;
+  }
+  p.lev2 {
+    font-size                : 100%%;
+    margin-left              : 3em;
+  }
+  p.lev3 {
+    font-size                : 90%%;
+    margin-left              : 4em;
+  }
+  p.lev4 {
+    font-size                : 80%%;
+    margin-left              : 5em;
+  }
+  p.lev5 {
+    font-size                : 80%%;
+    margin-left              : 6em;
+  }%s
+  /* flex */
+  .flex-menu-bar {
+    display                  : -webkit-flex;
+    display                  : flex;
+    -webkit-flex-wrap        : wrap;
+    -webkit-align-items      : center;
+    align-items              : center;
+    width                    : 100%%;
+    margin-left              : 0%%;
+    margin-right             : 2%%;
+    background-color         : inherited;
+  }
+  .flex-menu-option {
+    background-color         : inherited;
+    margin-right             : 4px;
+  }
+  .flex-list {
+    display                  : -webkit-flex;
+    display                  : flex;
+    -webkit-align-items      : center;
+    display                  : block;
+    align-items              : center;
+    width                    : 100%%;
+    background-color         : inherited;
+  }
+  .flex-list-item {
+    background-color         : inherited;
+    margin                   : 4px;
+  }
+</style>
+<link rel="shortcut icon" href="../_sisu/image/rb7.ico" />
+</head>
+┃",
+  doc_matters.opt.action.css_theme_default ? theme_light_0 : theme_dark_0,
+  doc_matters.opt.action.css_theme_default ? theme_light_1 : theme_dark_1,
+) ~ "\n";
+    void metadata_write_output(M)(M doc_matters, string[] metadata_) {
+      auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+      try {
+        if (!exists(pth_html.base)) {
+          pth_html.base.mkdirRecurse;
+        }
+        {
+          auto f = File(pth_html.fn_scroll("metadata." ~ doc_matters.src.filename), "w");
+          foreach (o; metadata_) {
+            f.writeln(o);
+          }
+        }
+        if (!exists(pth_html.base ~ "/index.html")) {
+          import sisudoc.io_out.html_snippet;
+          mixin htmlSnippet;
+          auto f = File(pth_html.base ~"/index.html", "w");
+          f.writeln(format_html_blank_page_guide_home(
+            "../../css/html_scroll.css",
+            (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+              ? doc_matters.opt.action.webserver_url_doc_root
+              : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+            "../../index.html",
+          ));
+        }
+      } catch (ErrnoException ex) {
+        // Handle error
+      }
+      if (doc_matters.opt.action.vox_gt0) {
+        writeln(" ", pth_html.fn_scroll("metadata." ~ doc_matters.src.filename));
+      }
+    }
+    static auto mkup = InlineMarkup();
+    import sisudoc.io_out.html_snippet;
+    mixin htmlSnippet;
+    if (doc_matters.opt.action.debug_do) {
+      writeln(doc_matters.src.filename_base);
+      writeln("Title:       ", doc_matters.conf_make_meta.meta.title_full);
+      writeln("  Author:    ", doc_matters.conf_make_meta.meta.creator_author);
+      writeln("  Published: ", doc_matters.conf_make_meta.meta.date_published);
+      writeln("  Copyright: ", doc_matters.conf_make_meta.meta.rights_copyright);
+      writeln("  License:   ", special_characters_text(doc_matters.conf_make_meta.meta.rights_license));
+      if (doc_matters.conf_make_meta.meta.classify_topic_register_arr.length > 0) {
+        foreach (topic; doc_matters.conf_make_meta.meta.classify_topic_register_arr.sort!("toUpper(a) < toUpper(b)", SwapStrategy.unstable)) {
+          string[] subject_tree = topic.split(mkup.sep);
+          if (subject_tree.length > 0) { writeln("  ",         subject_tree[0]); }
+          if (subject_tree.length > 1) { writeln("    ",       subject_tree[1]); }
+          if (subject_tree.length > 2) { writeln("      ",     subject_tree[2]); }
+          if (subject_tree.length > 3) { writeln("        ",   subject_tree[3]); }
+          if (subject_tree.length > 4) { writeln("          ", subject_tree[4]); }
+        }
+      }
+    }
+    auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+    auto pth_epub = spinePathsEPUB!()(doc_matters.output_path, doc_matters.src.language);
+    auto pth_pdf  = spinePathsPDF!()(doc_matters);
+    auto pth_pod =  spinePathsPods!()(doc_matters);
+    metadata_ ~= format(q"┃<body lang="en" xml:lang="en">
+    <a name="top" id="top"></a>
+    <a name="up" id="up"></a>
+    <a name="start" id="start"></a>
+    ┃");
+    metadata_ ~= "<div class=\"flex-menu-bar\"><div class=\"flex-menu-option\">";
+    if (doc_matters.opt.action.html_link_curate) {
+      metadata_ ~= format(q"┃<p class="icons">[<a href="%s" class="lnkicon">&nbsp;<b>⟰</b>&nbsp;HOME&nbsp;</a>&nbsp;|&nbsp;<a href="../../index.html" class="lnkicon">&nbsp;≅&nbsp;Collection&nbsp;</a>]&nbsp;&nbsp;[
+       <a href="../../authors.html" class="lnkicon">&nbsp;&#x1F58B;&nbsp;Authors&nbsp;</a> |
+       <a href="../../topics.html" class="lnkicon">&nbsp;⌘&nbsp;Topics&nbsp;</a>]</p>
+    ┃",
+    (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+      ? doc_matters.opt.action.webserver_url_doc_root
+      : doc_matters.conf_make_meta.conf.w_srv_data_root_url
+      , // HOME index.html equivalent _cfg.www_url_doc_root,
+    );
+    } else {
+      metadata_ ~= format(q"┃<p class="icons">[<a href="../../../index.html" class="lnkicon">&nbsp;≅&nbsp;<b>HOME</b>&nbsp;</a>&nbsp;<a href="../../index.html" class="lnkicon">&nbsp;≅&nbsp;Collection&nbsp;</a>]
+    ┃");
+    }
+    metadata_ ~= "</div>" ~ inline_search_form(doc_matters) ~ "</div><hr />";
+    if (!(doc_matters.conf_make_meta.meta.title_full.empty)) {
+      metadata_ ~= "<p class=\"lev0\">Title: <b><a href=\"" ~ doc_matters.src.filename_base ~ "/toc.html\">" ~ doc_matters.conf_make_meta.meta.title_full       ~ "</a></b></p>";
+    } else if (doc_matters.opt.action.debug_do || doc_matters.opt.action.vox_gt2) {
+      writeln("ERROR no Title information provided in document header ", doc_matters.src.filename_base);
+    }
+    if (!(doc_matters.conf_make_meta.meta.creator_author.empty)) {
+      if (doc_matters.opt.action.html_link_curate) {
+        metadata_ ~= "<p class=\"lev1\">Author: <b><a href=\"../../authors.html#" ~ doc_matters.conf_make_meta.meta.creator_author_surname.translate([' ' : "_"]) ~ "\">"
+                                                   ~ doc_matters.conf_make_meta.meta.creator_author   ~ "</a></b></p>";
+      } else {
+        metadata_ ~= "<p class=\"lev1\">Author: <b>"
+                                                   ~ doc_matters.conf_make_meta.meta.creator_author   ~ "</b></p>";
+      }
+    } else if (doc_matters.opt.action.debug_do || doc_matters.opt.action.vox_gt2) {
+      writeln("ERROR no Author information provided in document header ", doc_matters.src.filename_base);
+    }
+    metadata_ ~= "<p class=\"lev1\">Published: "   ~ doc_matters.conf_make_meta.meta.date_published   ~ "</p>";
+    if (!(doc_matters.conf_make_meta.meta.rights_copyright.empty)) {
+      metadata_ ~= "<p class=\"lev1\">Copyright: "   ~ special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright) ~ "</p>";
+    } else if (doc_matters.opt.action.debug_do || doc_matters.opt.action.vox_gt2) {
+      writeln("WARNING no Copyright information provided in document header ", doc_matters.src.filename_base);
+    }
+    if (!(doc_matters.conf_make_meta.meta.rights_license.empty)) {
+      metadata_ ~= "<p class=\"lev1\">License:   "   ~ special_characters_text(doc_matters.conf_make_meta.meta.rights_license) ~ "</p>";
+    } else if (doc_matters.opt.action.debug_do || doc_matters.opt.action.vox_gt2) {
+      writeln("WARNING no License information provided in document header ", doc_matters.src.filename_base);
+    }
+    if (!(doc_matters.conf_make_meta.meta.notes_summary.empty)) {
+      metadata_ ~= "<hr /><p class=\"lev0\">Summary:</p><p class=\"lev1\">"   ~ special_characters_text(doc_matters.conf_make_meta.meta.notes_summary) ~ "</p>";
+    } else if (doc_matters.opt.action.debug_do) {
+      writeln("WARNING no summary of text provided in document header ", doc_matters.src.filename_base);
+    }
+    metadata_ ~= "<hr /><p class=\"lev1\">source: "      ~ doc_matters.src.filename_base ~ "</p>";
+    if (doc_matters.opt.action.html_link_markup_source) {
+      metadata_ ~= "<p class=\"lev1\">●&nbsp;&nbsp;markup source:&nbsp;&nbsp;the&nbsppod&nbsp[<a href=\"../../" ~ pth_pod.internal_base ~ "/" ~ doc_matters.src.filename_base ~ ".zip\" class=\"lnkicon\">"
+                   ~ "&nbsp;🫛&nbsp;zipped&nbsp;</a>|&nbsp;"
+                   ~ "<a href=\"../../" ~ pth_pod.internal_base ~ "/" ~ doc_matters.src.filename_base ~ "/\" class=\"lnkicon\">"
+                   ~ "&nbsp;🫛&nbsp;tree&nbsp;</a>]&nbsp;";
+    }
+    metadata_ ~= "<p class=\"lev1\">●&nbsp;&nbsp;outputs:&nbsp;&nbsp;[&nbsp;html:&nbsp;<a href=\""    ~ doc_matters.src.filename_base ~ ".html\" class=\"lnkicon\">"
+                 ~ "&nbsp;▤&nbsp;scroll&nbsp;</a>&nbsp;"
+                 ~ "|<a href=\""    ~ doc_matters.src.filename_base ~ "/toc.html\" class=\"lnkicon\">"
+                 ~ "&nbsp;※&nbsp;seg&nbsp;</a>]&nbsp;&nbsp;&nbsp;"
+                 ~ "[<a href=\"../../" ~ pth_epub.internal_base ~ "/" ~ doc_matters.src.filename_base ~ "." ~ doc_matters.src.language ~ ".epub\" class=\"lnkicon\">"
+                 ~ "&nbsp;◆&nbsp;epub&nbsp;</a>]&nbsp;&nbsp;&nbsp;";
+    if ((doc_matters.opt.action.html_link_pdf) || (doc_matters.opt.action.html_link_pdf_a4)) {
+      metadata_ ~=  "[&nbsp;pdf:&nbsp;<a href=\"../../pdf/"
+                 ~ doc_matters.src.filename_base
+                 ~ "." ~ doc_matters.src.language ~ ".a4.portrait.pdf\" class=\"lnkicon\">"
+                 ~ "&nbsp;□&nbsp;a4&nbsp;</a>&nbsp"
+                 ~ "|<a href=\"../../pdf/"
+                 ~ doc_matters.src.filename_base
+                 ~ "." ~ doc_matters.src.language ~ ".letter.portrait.pdf\" class=\"lnkicon\">"
+                 ~ "&nbsp;□&nbsp;U.S.&nbsp;letter&nbsp;</a>]&nbsp";
+    } else if (doc_matters.opt.action.html_link_pdf_a4) {
+      metadata_ ~=  "[<a href=\"../../pdf/"
+                 ~ doc_matters.src.filename_base
+                 ~ "." ~ doc_matters.src.language ~ ".a4.portrait.pdf\" class=\"lnkicon\">"
+                 ~ "&nbsp;□&nbsp;pdf&nbsp;(a4)&nbsp;</a>]&nbsp";
+    } else if (doc_matters.opt.action.html_link_pdf_letter) {
+      metadata_ ~=  "[<a href=\"../../pdf/"
+                 ~ doc_matters.src.filename_base
+                 ~ "." ~ doc_matters.src.language ~ ".letter.portrait.pdf\" class=\"lnkicon\">"
+                 ~ "&nbsp;□&nbsp;pdf&nbsp;(U.S.&nbsp;letter)&nbsp;</a>]&nbsp";
+    }
+    metadata_ ~=  "</p>";
+    if (doc_matters.conf_make_meta.meta.classify_topic_register_arr.length > 0) {
+      metadata_ ~= "<hr /><p class=\"lev0\">Topics:</p>";
+      string[] _top = ["", "", "", "", ""];
+      foreach (topic; doc_matters.conf_make_meta.meta.classify_topic_register_arr.sort!("toUpper(a) < toUpper(b)", SwapStrategy.unstable)) {
+        string[] subject_tree = topic.split(mkup.sep);
+        if (subject_tree.length > 0) {
+          if (subject_tree[0] != _top[0]) {
+            _top[0] = subject_tree[0];
+            if (doc_matters.opt.action.html_link_curate) {
+              metadata_ ~=
+                "<p class=\"lev1\"><a href=\"../../topics.html#"
+                  ~ subject_tree[0].translate([' ' : "_"]) ~ "\">"
+                  ~ subject_tree[0]
+                  ~ "</a></p>";
+            } else {
+              metadata_ ~=
+                "<p class=\"lev1\">"  ~ subject_tree[0] ~ "</p>";
+            }
+          }
+          if (subject_tree.length > 1) {
+            if (subject_tree[1] != _top[1]) {
+              _top[1] = subject_tree[1];
+              _top[2] = ""; _top[3] = ""; _top[4] = "";
+              if (doc_matters.opt.action.html_link_curate) {
+                metadata_ ~=
+                  "<p class=\"lev2\"><a href=\"../../topics.html#"
+                    ~ subject_tree[0].translate([' ' : "_"]) ~ "."
+                    ~ subject_tree[1].translate([' ' : "_"]) ~ "\">"
+                    ~ subject_tree[1]
+                    ~ "</a></p>";
+              } else {
+                metadata_ ~=
+                  "<p class=\"lev2\">"  ~ subject_tree[1] ~ "</p>";
+              }
+            }
+            if (subject_tree.length > 2) {
+              if (subject_tree[2] != _top[2]) {
+                _top[2] = subject_tree[2];
+                _top[3] = ""; _top[4] = "";
+                if (doc_matters.opt.action.html_link_curate) {
+                  metadata_ ~=
+                    "<p class=\"lev3\"><a href=\"../../topics.html#"
+                      ~ subject_tree[0].translate([' ' : "_"]) ~ "."
+                      ~ subject_tree[1].translate([' ' : "_"]) ~ "."
+                      ~ subject_tree[2].translate([' ' : "_"]) ~ "\">"
+                      ~ subject_tree[2]
+                      ~ "</a></p>";
+                } else {
+                  metadata_ ~=
+                    "<p class=\"lev3\">"  ~ subject_tree[2] ~ "</p>";
+                }
+              }
+              if (subject_tree.length > 3) {
+                if (subject_tree[3] != _top[3]) {
+                  _top[3] = subject_tree[3];
+                  _top[4] = "";
+                  if (doc_matters.opt.action.html_link_curate) {
+                    metadata_ ~=
+                      "<p class=\"lev4\"><a href=\"../../topics.html#"
+                        ~ subject_tree[0].translate([' ' : "_"]) ~ "."
+                        ~ subject_tree[1].translate([' ' : "_"]) ~ "."
+                        ~ subject_tree[2].translate([' ' : "_"]) ~ "."
+                        ~ subject_tree[3].translate([' ' : "_"]) ~ "\">"
+                        ~ subject_tree[3]
+                        ~ "</a></p>";
+                  } else {
+                    metadata_ ~=
+                      "<p class=\"lev4\">"  ~ subject_tree[3] ~ "</p>";
+                  }
+                }
+                if (subject_tree.length > 4) {
+                  if (subject_tree[4] != _top[4]) {
+                    _top[4] = subject_tree[4];
+                    if (doc_matters.opt.action.html_link_curate) {
+                      metadata_ ~=
+                        "<p class=\"lev5\"><a href=\"../../topics.html#"
+                          ~ subject_tree[0].translate([' ' : "_"]) ~ "."
+                          ~ subject_tree[1].translate([' ' : "_"]) ~ "."
+                          ~ subject_tree[2].translate([' ' : "_"]) ~ "."
+                          ~ subject_tree[3].translate([' ' : "_"]) ~ "."
+                          ~ subject_tree[4].translate([' ' : "_"]) ~ "\">"
+                          ~ subject_tree[4]
+                          ~ "</a></p>";
+                    } else {
+                      metadata_ ~=
+                        "<p class=\"lev5\">"  ~ subject_tree[4] ~ "</p>";
+                    }
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    } else if (doc_matters.opt.action.debug_do) {
+      writeln("WARNING no topic_register classification of text provided in document header ", doc_matters.src.filename_base);
+    }
+    metadata_write_output(doc_matters, metadata_);
+  }
+}
diff --git a/src/sisudoc/io_out/odt.d b/src/sisudoc/io_out/odt.d
new file mode 100644
index 0000000..d6ac27d
--- /dev/null
+++ b/src/sisudoc/io_out/odt.d
@@ -0,0 +1,2162 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.odt;
+@safe:
+template formatODT() {
+  import
+    sisudoc.io_out,
+    sisudoc.io_out.rgx,
+    sisudoc.io_out.rgx_xhtml;
+  import
+    std.digest.sha,
+    std.file,
+    std.outbuffer,
+    std.uri,
+    std.zip,
+    std.conv : to;
+  import
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.xmls,
+    sisudoc.io_out.xmls_css;
+  mixin spineRgxOut;
+  mixin spineRgxXHTML;
+  struct formatODT {
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    string _tags(O)(const O obj) {
+      string _tags = "";
+      if (obj.tags.anchor_tags.length > 0) {
+        foreach (tag_; obj.tags.anchor_tags) {
+          if (tag_.length > 0) {
+            _tags ~= format(q"┃<text:span text:style-name="Span_subscript">
+        <text:bookmark-start text:name="%s"/>
+        <text:bookmark-end text:name="%s"/>
+      </text:span>
+    ┃",
+              _special_characters(tag_, obj),
+              _special_characters(tag_, obj),
+            );
+          }
+        }
+      }
+      return _tags;
+    }
+    string _xhtml_anchor_tags(O)(O obj) {
+      const(string[]) anchor_tags = obj.tags.anchor_tags;
+      string tags="";
+      if (anchor_tags.length > 0) {
+        foreach (tag; anchor_tags) {
+          if (!(tag.empty)) {
+            tags ~= "<a name=\"" ~ tag ~ "\"></a>";
+          }
+        }
+      }
+      return tags;
+    }
+    string obj_num(O)(const O obj) { // TODO
+      string _on;
+      _on = (obj.metainfo.object_number.empty)
+      ? ""
+      : (format(q"┃
+      <text:span text:style-name="Span_subscript">「%s」</text:span>┃",
+          obj.metainfo.object_number,
+        ));
+      return _on;
+    }
+    string _footnotes()(string _txt) {
+      static auto rgx = RgxO();
+      static auto rgx_xhtml = RgxXHTML();
+      _txt = _txt.replaceAll(
+        rgx.inline_notes_al_regular_number_note,
+        format(q"┃<text:note text:id="ftn%s" text:note-class="footnote">
+      <text:note-citation>
+        %s
+      </text:note-citation>
+      <text:note-body>
+        <text:p text:style-name="Footnote">
+          %s
+        </text:p>
+      </text:note-body>
+    </text:note>┃",
+          "$1", "$1", "$2",
+        )
+      );
+      return _txt;
+    }
+    string _bullet(O)(const O obj) {
+      string _b = "";
+      if (obj.attrib.bullet) {
+        _b = format(q"┃● ┃",);
+      }
+      return _b;
+    }
+    string _indent(O)(string _txt, const O obj) { // TODO
+      // if (obj.attrib.indent_base > 0 ||
+      //   obj.attrib.indent_hang > 0
+      // ) {
+      if (obj.metainfo.is_a == "toc") {
+        _txt = format(q"┃
+    %s<text:h text:style-name="H_%s" text:outline-level="%s">
+      %s%s%s
+    </text:h>┃",
+          (obj.attrib.indent_base < 4)
+          ? "<text:p text:style-name=\"Standard\"/>\n    " : "",
+          obj.attrib.indent_base,
+          obj.attrib.indent_base,
+          _tags(obj),
+          _txt,
+          obj_num(obj),
+        );
+      } else if (!empty(obj.metainfo.object_number)) {
+        if (obj.attrib.indent_base == 0 && obj.attrib.indent_hang == 0) {
+          _txt = format(q"┃
+    <text:p text:style-name="P_normal">%s
+      <text:span text:style-name="Span_subscript">
+        <text:bookmark-start text:name="%s"/>
+        <text:bookmark-end text:name="%s"/>
+      </text:span>
+      %s%s%s
+    </text:p>┃",
+            _bullet(obj),
+            obj.metainfo.object_number,
+            obj.metainfo.object_number,
+            _tags(obj),
+            _txt,
+            obj_num(obj),
+          );
+        } else if (obj.attrib.indent_base == obj.attrib.indent_hang) {
+          _txt = format(q"┃
+    <text:p text:style-name="P_indent_%s">%s
+      <text:span text:style-name="Span_subscript">
+        <text:bookmark-start text:name="%s"/>
+        <text:bookmark-end text:name="%s"/>
+      </text:span>
+      %s%s%s
+    </text:p>┃",
+            obj.attrib.indent_base,
+            _bullet(obj),
+            obj.metainfo.object_number,
+            obj.metainfo.object_number,
+            _tags(obj),
+            _txt,
+            obj_num(obj),
+          );
+        } else {
+          _txt = format(q"┃
+    <text:p text:style-name="P_h%s_i%s">%s
+      <text:span text:style-name="Span_subscript">
+        <text:bookmark-start text:name="%s"/>
+        <text:bookmark-end text:name="%s"/>
+      </text:span>
+      %s%s%s
+    </text:p>┃",
+            obj.attrib.indent_base,
+            obj.attrib.indent_hang,
+            _bullet(obj),
+            obj.metainfo.object_number,
+            obj.metainfo.object_number,
+            _tags(obj),
+            _txt,
+            obj_num(obj),
+          );
+        }
+      } else {
+        if (obj.attrib.indent_base == 0 && obj.attrib.indent_hang == 0) { /+ can omit and would explicitly set indent base and hang as 0 each below +/
+          _txt = format(q"┃
+    <text:p text:style-name="P_normal">%s
+      %s%s%s
+    </text:p>┃",
+            _bullet(obj),
+            _tags(obj),
+            _txt,
+            obj_num(obj),
+          );
+        } else if (obj.attrib.indent_base == obj.attrib.indent_hang) {
+          _txt = format(q"┃
+    <text:p text:style-name="P_indent_%s">%s
+      %s%s%s
+    </text:p>┃",
+            obj.attrib.indent_base,
+            _bullet(obj),
+            _tags(obj),
+            _txt,
+            obj_num(obj),
+          );
+        } else {
+          _txt = format(q"┃
+    <text:p text:style-name="P_h%s_i%s">%s
+      %s%s%s
+    </text:p>┃",
+            _bullet(obj),
+            obj.attrib.indent_base,
+            obj.attrib.indent_hang,
+            _tags(obj),
+            _txt,
+            obj_num(obj),
+          );
+        }
+      }
+      return _txt;
+    }
+    string _block_type_delimiters(O)(string[] _block_lines, const O obj) { // TODO
+      string _block = "";
+      foreach (i, _line; _block_lines) {
+        _line = _footnotes(_line);
+        if (i == 0) {
+          _block ~= format(q"┃
+    <text:p text:style-name="P_group">%s
+        <text:span text:style-name="Span_subscript">
+          <text:bookmark-start text:name="%s"/>
+          <text:bookmark-end text:name="%s"/>
+        </text:span>
+      %s
+    </text:p>┃",
+            _bullet(obj),
+            obj.metainfo.object_number,
+            obj.metainfo.object_number,
+            // _tags(obj),
+            _line,
+          );
+        } else {
+          _block ~= format(q"┃
+    <text:p text:style-name="P_group">%s</text:p>┃",
+            _line);
+        }
+      }
+      _block ~= format(q"┃
+    <text:p text:style-name="P_group">
+      <text:span text:style-name="Span_subscript">「%s」</text:span>
+    </text:p>
+    <text:p text:style-name="Standard"/>┃",
+        obj_num(obj));
+      return _block;
+    }
+    string _special_characters(O)(string _txt, const O obj) {
+      _txt = _txt
+        .replaceAll(rgx_xhtml.ampersand,    "&amp;")
+        .replaceAll(rgx_xhtml.quotation,    "&#34;")
+        .replaceAll(rgx_xhtml.less_than,    "&lt;")
+        .replaceAll(rgx_xhtml.greater_than, "&gt;")
+        .replaceAll(rgx.nbsp_char,          "&#160;");
+      return _txt;
+    }
+    string _preserve_white_spaces(O)(string _txt, const O obj) {
+      if (obj.metainfo.is_a == "code" || obj.metainfo.is_a == "verse" || obj.metainfo.is_a == "block") {
+        _txt = _txt
+          .replaceAll(rgx.space,      "&#160;");
+      }
+      return _txt;
+    }
+    string _font_face(string _txt){
+      _txt = _txt
+        .replaceAll(rgx.inline_strike,      "<del>$1</del>")
+        .replaceAll(rgx.inline_insert,      "<ins>$1</ins>")
+        .replaceAll(rgx.inline_cite,        "<cite>$1</cite>")
+        .replaceAll(rgx.inline_emphasis,    format(q"┃<text:span text:style-name="Span_bold">%s</text:span>┃",       "$1"))
+        .replaceAll(rgx.inline_bold,        format(q"┃<text:span text:style-name="Span_bold">%s</text:span>┃",       "$1"))
+        .replaceAll(rgx.inline_italics,     format(q"┃<text:span text:style-name="Span_italic">%s</text:span>┃",     "$1"))
+        .replaceAll(rgx.inline_underscore,  format(q"┃<text:span text:style-name="Span_underscore">%s</text:span>┃", "$1"))
+        .replaceAll(rgx.inline_superscript, format(q"┃<text:span text:style-name="Span_superscript">%s</text:span>┃","$1"))
+        .replaceAll(rgx.inline_subscript,   format(q"┃<text:span text:style-name="Span_subscript">%s</text:span>┃",  "$1"))
+        .replaceAll(rgx.inline_mono,        format(q"┃<text:span text:style-name="Span_monospace">%s</text:span>┃",  "$1"));
+      return _txt;
+    }
+    auto _obj_num(O)(O obj) { // NOT USED YET
+      struct objNum {
+        string reference() {
+          return format(q"┃<text:span text:style-name="Span_subscript">
+        <text:bookmark-start text:name="%s"/>
+        <text:bookmark-end text:name="%s"/>
+      </text:span>┃",
+            obj.object_number,
+            obj.object_number,
+          );
+        }
+        string display() {
+          return format(q"┃<text:span text:style-name="Span_subscript">
+      %s%s%s
+      </text:span>┃",
+            on_o,
+            obj.object_number,
+            on_c,
+          );
+        }
+      }
+      return objNum();
+    }
+    string _break_page()() {
+      return format(q"┃
+    <text:p text:style-name="P_normal_page_new"/>
+    ┃",
+      );
+    }
+    string _empty_line_break(O)(string _txt, const O obj) {
+      if (obj.metainfo.is_a == "code" || obj.metainfo.is_a == "verse" || obj.metainfo.is_a == "block") {
+        _txt = _txt
+          .replaceAll(rgx.br_empty_line,    "<br />");
+      }
+      return _txt;
+    }
+    string _links(O)(string _txt, const O obj) {
+      if (obj.metainfo.is_a != "code") {
+        if (obj.metainfo.is_a == "toc") {
+          _txt = replaceAll!(m =>
+             m[1] ~ "┤"
+             ~ (replaceAll!(n =>
+                 n["type"] ~ n["path"] ~ (n["file"].encodeComponent)
+               )((obj.stow.link[m["num"].to!ulong]).to!string, rgx.uri_identify_components))
+             ~ "├"
+          )(_txt, rgx.inline_link_number_only)
+            .replaceAll(rgx.inline_link,
+              format(q"┃<text:bookmark-ref text:reference-format="text" text:ref-name="%s">%s</text:bookmark-ref>┃",
+                _special_characters("$3", obj),
+                _special_characters("$1", obj)
+              ));
+        } else {
+          _txt = replaceAll!(m =>
+             m[1] ~ "┤"
+             ~ (replaceAll!(n =>
+                 n["type"] ~ n["path"] ~ (n["file"].encodeComponent)
+               )((obj.stow.link[m["num"].to!ulong]).to!string, rgx.uri_identify_components))
+             ~ "├"
+          )(_txt, rgx.inline_link_number_only)
+            .replaceAll(rgx.inline_link,
+              format(q"┃<text:a xl:type="simple" xl:href="%s">%s</text:a>┃",
+                _special_characters("$2", obj),
+                _special_characters("$1", obj)
+              ));
+        }
+      }
+      debug(links) {
+        if (obj.text.match(rgx.inline_link_number)
+          && _txt.match(rgx.inline_link_number_only)
+        ) {
+            writeln(">>    ", _txt);
+            writeln("is_a: ", obj.metainfo.is_a);
+        }
+      }
+      return _txt;
+    }
+    string _images(O)(string _txt, const O obj) {
+      if (_txt.match(rgx.inline_image)) {
+        _txt = _txt
+          .replaceAll(rgx.inline_image,
+            ("$1<draw:frame draw:style-name=\"fr1\" draw:name=\"graphics12\" text:anchor-type=\"as-char\" svg:width=\"$4px\" svg:height=\"$5px\" draw:z-index=\"2\"><draw:image xl:href=\"Pictures/$3\" xl:type=\"simple\" xl:show=\"embed\" xl:actuate=\"onLoad\"/></draw:frame> $6"))
+          .replaceAll(
+            rgx.inline_link_empty,
+            ("$1"));
+      }
+      return _txt;
+    }
+    string markup(O)(const O obj) {
+      /+ markup TODO +/
+      string _txt = obj.text;
+      _txt = _special_characters(_txt, obj);     // TODO & why both obj & obj.text, consider also in output_xmls.org
+      if (obj.metainfo.is_a == "code" || obj.metainfo.is_a == "verse" || obj.metainfo.is_a == "block") {
+        _txt = replaceAll!(m => _preserve_white_spaces(m[1], obj))(_txt, rgx.spaces_keep);
+      } // check that this does what you want, keep: leading spaces (indent) & more than single spaces within text
+      // _txt = _preserve_white_spaces(_txt, obj);  // (obj.metainfo.is_a == "code" || obj.metainfo.is_a == "verse" || obj.metainfo.is_a == "block")
+      _txt = _font_face(_txt);
+      _txt = _images(_txt, obj);                  // (obj.metainfo.is_a != "code")
+      _txt = _links(_txt, obj);                  // (obj.metainfo.is_a != "code")
+      _txt = _empty_line_break(_txt, obj);       // (obj.metainfo.is_a == "code" || obj.metainfo.is_a == "verse" || obj.metainfo.is_a == "block")
+      return _txt;
+    }
+    string heading(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body" || "frontmatter" || "backmatter");
+      assert(obj.metainfo.is_of_section == "body" || "toc" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "para");
+      assert(obj.metainfo.is_a          == "heading");
+      string _o_txt_odt = markup(obj);
+      if (obj.metainfo.dummy_heading
+        && (obj.metainfo.is_a == "toc" || obj.metainfo.is_a == "heading")) {
+        _o_txt_odt = "";
+      } else if (obj.metainfo.is_a == "toc") {
+        _o_txt_odt = format(q"┃%s<text:h text:style-name="H_%s" text:outline-level="%s">
+      %s%s%s
+    </text:h>┃",
+          _break_page,
+          obj.metainfo.heading_lev_markup,
+          obj.metainfo.heading_lev_markup,
+          _tags(obj),
+          _o_txt_odt,
+          obj_num(obj),
+        );
+      } else {
+        _o_txt_odt = _footnotes(_o_txt_odt);
+        _o_txt_odt = format(q"┃%s<text:h text:style-name="H_%s" text:outline-level="%s">
+      <text:span text:style-name="Span_subscript">
+        <text:bookmark-start text:name="%s"/>
+        <text:bookmark-end text:name="%s"/>
+      </text:span>
+      %s%s%s
+    </text:h>┃",
+          _break_page,
+          obj.metainfo.heading_lev_markup,
+          obj.metainfo.heading_lev_markup,
+          obj.metainfo.object_number,
+          obj.metainfo.object_number,
+          _tags(obj),
+          _o_txt_odt,
+          obj_num(obj),
+        );
+      }
+      return _o_txt_odt;
+    }
+    string para(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body" || "frontmatter" || "backmatter");
+      assert(obj.metainfo.is_of_section == "body" || "toc" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "para");
+      assert(obj.metainfo.is_a          == "para" || "toc" || "endnote" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      string _o_txt_odt;
+      if (obj.metainfo.dummy_heading
+        && (obj.metainfo.is_a == "toc" || obj.metainfo.is_a == "heading")) {
+        _o_txt_odt = "";
+      } else {
+        _o_txt_odt = markup(obj);
+        _o_txt_odt = _footnotes(_o_txt_odt);
+        _o_txt_odt = _indent(_o_txt_odt, obj); // final setting?
+      }
+      return _o_txt_odt;
+    }
+    string quote(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "quote");
+      string _o_txt_odt = markup(obj);
+      _o_txt_odt = _footnotes(_o_txt_odt); // decide
+      return _o_txt_odt;
+    }
+    string group(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "group");
+      string _o_txt_odt = markup(obj);
+      /+ TODO
+        - split lines
+          - only double newlines (paragraph delimiter), (not line breaks, single new lines)
+        - no hard space indentation
+      +/
+      string[] _block_lines = (_o_txt_odt).split(rgx.br_linebreaks_newlines);
+      _o_txt_odt = _block_type_delimiters(_block_lines, obj);
+      return _o_txt_odt;
+    }
+    string block(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "block");
+      string _o_txt_odt = markup(obj);
+      string[] _block_lines = (_o_txt_odt).split(rgx.br_linebreaks_newlines);
+      _o_txt_odt = _block_type_delimiters(_block_lines, obj);
+      return _o_txt_odt;
+    }
+    string verse(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "verse");
+      string _o_txt_odt = markup(obj);
+      string[] _block_lines = (_o_txt_odt).split(rgx.br_linebreaks_newlines);
+      _o_txt_odt = _block_type_delimiters(_block_lines, obj);
+      return _o_txt_odt;
+    }
+    string code(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "code");
+      string _o_txt_odt = markup(obj);
+      /+ TODO
+        - split lines
+          - each line including empty lines
+        - hard space indentation
+          - "^[ ]" &#160;
+          - count number only at beginning of line and replace each
+      +/
+      string[] _block_lines = (_o_txt_odt).split(rgx.br_linebreaks_newlines);
+      string _block = "";
+      foreach (i, _line; _block_lines) {
+        if (i == 1) {
+          _block ~= format(q"┃
+    <text:p text:style-name="P_code">
+    <text:span text:style-name="Span_subscript">
+      <text:bookmark-start text:name="%s"/>
+      <text:bookmark-end text:name="%s"/>
+    </text:span>
+    %s
+    </text:p>┃",
+            obj.metainfo.object_number,
+            obj.metainfo.object_number,
+            _line,
+          );
+        } else {
+          _block ~= format(q"┃
+    <text:p text:style-name="P_code">%s</text:p>┃",
+            _line);
+        }
+      }
+      _block ~= format(q"┃
+    <text:p text:style-name="P_group">
+      <text:span text:style-name="Span_subscript">「%s」</text:span>
+    </text:p>
+    <text:p text:style-name="Standard"/>┃",
+         obj_num(obj));
+      _o_txt_odt = _block;
+      return _o_txt_odt;
+    }
+    Tuple!(string, string) tablarize(O)(
+      const        O    obj,
+      string            _txt,
+    ) {
+      string[] _table_rows = (_txt).split(rgx.table_delimiter_row);
+      string[] _table_cols;
+      string _table;
+      string _tablenote;
+      foreach(row_idx, row; _table_rows) {
+        _table_cols = row.split(rgx.table_delimiter_col);
+          _table ~= "<table:table-row>";
+          foreach(col_idx, cell; _table_cols) {
+            if ((_table_cols.length == 1)
+            && (_table_rows.length <= row_idx+2)) { // check row_idx+2 (rather than == ++row_idx)
+              _tablenote ~= cell;
+            } else {
+              _table ~= format(q"┃<table:table-cell office:value-type="string">
+    <text:p text:style-name="%s">
+    %s
+    </text:p>
+    </table:table-cell>┃",
+                (row_idx == 0 && obj.table.heading) ? "Table_Heading" : "P_table_cell",
+                cell,
+              );
+            }
+          }
+          _table ~= "</table:table-row>";
+        }
+      Tuple!(string, string) t = tuple(
+        _table,
+        _tablenote,
+      );
+      return t;
+    }
+    int _table_number = 0;
+    string table(O,M)(
+      const        O  obj,
+      const        M  doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "table");
+      string _o_txt_odt = markup(obj);
+      Tuple!(string, string) t = tablarize(obj, _o_txt_odt);
+      string _note = t[1];
+      _o_txt_odt = format(q"┃
+    <table:table table:name="Table%s" table:style-name="Table1">
+      <text:span text:style-name="Span_subscript">
+        <text:bookmark-start text:name="%s"/>
+        <text:bookmark-end text:name="%s"/>
+      </text:span>
+      <table:table-column table:style-name="Table1.D" table:number-columns-repeated="%s"/>
+          %s
+        </table:table>
+        <text:p text:style-name="P_group">
+      <text:span text:style-name="Span_subscript">「%s」</text:span>
+    </text:p>┃",
+        _table_number++,
+        obj.metainfo.object_number,
+        obj.metainfo.object_number,
+        obj.table.number_of_columns,
+        t[0],
+        obj.metainfo.object_number,
+        // _note,
+      );
+      return _o_txt_odt;
+    }
+  }
+}
+template outputODT() {
+  import
+    sisudoc.io_out,
+    sisudoc.io_out.rgx,
+    sisudoc.io_out.rgx_xhtml;
+  import
+    std.digest.sha,
+    std.file,
+    std.outbuffer,
+    std.uri,
+    std.zip,
+    std.conv : to;
+  import
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.xmls,
+    sisudoc.io_out.xmls_css;
+  mixin InternalMarkup;
+  mixin spineRgxOut;
+  mixin spineRgxXHTML;
+  static auto rgx = RgxO();
+  static auto rgx_xhtml = RgxXHTML();
+  // mixin outputXmlODT;
+  string odt_head(I)(I doc_matters) {
+    string _has_tables = format(q"┃
+    <style:style style:name="Table1" style:family="table">
+      <style:table-properties style:width="16.999cm" table:align="margins"/>
+    </style:style>
+    <style:style style:name="Table1.A" style:family="table-column">
+      <style:table-column-properties style:column-width="16.999cm" style:rel-column-width="65535*"/>
+    </style:style>
+    <style:style style:name="Table1.B" style:family="table-column">
+      <style:table-column-properties style:column-width="8.499cm" style:rel-column-width="32767*"/>
+    </style:style>
+    <style:style style:name="Table1.C" style:family="table-column">
+      <style:table-column-properties style:column-width="5.666cm" style:rel-column-width="21845*"/>
+    </style:style>
+    <style:style style:name="Table1.D" style:family="table-column">
+      <style:table-column-properties style:column-width="4.349cm" style:rel-column-width="16383*"/>
+    </style:style>
+    <style:style style:name="Table1.E" style:family="table-column">
+      <style:table-column-properties style:column-width="3.399cm" style:rel-column-width="13107*"/>
+    </style:style>
+    <style:style style:name="Table1.F" style:family="table-column">
+      <style:table-column-properties style:column-width="2.833cm" style:rel-column-width="10922*"/>
+    </style:style>
+    <style:style style:name="Table1.G" style:family="table-column">
+      <style:table-column-properties style:column-width="2.428cm" style:rel-column-width="9362*"/>
+    </style:style>
+    <style:style style:name="Table1.H" style:family="table-column">
+      <style:table-column-properties style:column-width="2.124cm" style:rel-column-width="8191*"/>
+    </style:style>
+    <style:style style:name="Table2" style:family="table">
+      <style:table-properties style:width="16.999cm" table:align="margins"/>
+    </style:style>
+    <style:style style:name="Table2.A" style:family="table-column">
+      <style:table-column-properties style:column-width="16.999cm" style:rel-column-width="65535*"/>
+    </style:style>
+    <style:style style:name="Table2.B" style:family="table-column">
+      <style:table-column-properties style:column-width="8.499cm" style:rel-column-width="32767*"/>
+    </style:style>
+    <style:style style:name="Table2.C" style:family="table-column">
+      <style:table-column-properties style:column-width="5.666cm" style:rel-column-width="21845*"/>
+    </style:style>
+    <style:style style:name="Table2.D" style:family="table-column">
+      <style:table-column-properties style:column-width="4.349cm" style:rel-column-width="16383*"/>
+    </style:style>
+    <style:style style:name="Table2.E" style:family="table-column">
+      <style:table-column-properties style:column-width="3.999cm" style:rel-column-width="13107*"/>
+    </style:style>
+    <style:style style:name="Table2.F" style:family="table-column">
+      <style:table-column-properties style:column-width="2.833cm" style:rel-column-width="10922*"/>
+    </style:style>
+    <style:style style:name="Table2.G" style:family="table-column">
+      <style:table-column-properties style:column-width="2.428cm" style:rel-column-width="9362*"/>
+    </style:style>
+    <style:style style:name="Table2.H" style:family="table-column">
+      <style:table-column-properties style:column-width="2.124cm" style:rel-column-width="8191*"/>
+    </style:style>
+    <style:style style:name="Table2.I" style:family="table-column">
+      <style:table-column-properties style:column-width="1.8887cm" style:rel-column-width="7281*"/>
+    </style:style>
+    <style:style style:name="Table2.J" style:family="table-column">
+      <style:table-column-properties style:column-width="1.6999cm" style:rel-column-width="6553*"/>
+    </style:style>
+    <style:style style:name="Table2.K" style:family="table-column">
+      <style:table-column-properties style:column-width="1.5453cm" style:rel-column-width="5957*"/>
+    </style:style>
+    <style:style style:name="Table2.L" style:family="table-column">
+      <style:table-column-properties style:column-width="1.416cm" style:rel-column-width="5461*"/>
+    </style:style>
+    <style:style style:name="Table2.M" style:family="table-column">
+      <style:table-column-properties style:column-width="1.307" style:rel-column-width="5041*"/>
+    </style:style>
+    <style:style style:name="Table2.N" style:family="table-column">
+      <style:table-column-properties style:column-width="1.214cm" style:rel-column-width="4681*"/>
+    </style:style>
+  ┃",);
+    string _odt_head = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
+  <office:document-content xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xl="https://www.w3.org/1999/xlink" xmlns:dc="https://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="https://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="https://openoffice.org/2004/office" xmlns:ooow="https://openoffice.org/2004/writer" xmlns:oooc="https://openoffice.org/2004/calc" xmlns:dom="https://www.w3.org/2001/xml-events" xmlns:xforms="https://www.w3.org/2002/xforms" xmlns:xsd="https://www.w3.org/2001/XMLSchema" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xmlns:rpt="https://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="https://www.w3.org/1999/xhtml" xmlns:grddl="https://www.w3.org/2003/g/data-view#" xmlns:tableooo="https://openoffice.org/2009/table" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:css3t="https://www.w3.org/TR/css3-text/" office:version="1.2">
+  <office:scripts/>
+  <office:font-face-decls>
+  <style:font-face style:name="DejaVu Sans Mono" svg:font-family="'DejaVu Sans Mono'" style:font-adornments="Book" style:font-family-generic="modern" style:font-pitch="fixed"/>
+  <style:font-face style:name="Inconsolata" svg:font-family="Inconsolata" style:font-adornments="Regular" style:font-pitch="fixed"/>
+  <style:font-face style:name="Liberation Mono" svg:font-family="'Liberation Mono'" style:font-adornments="Regular" style:font-family-generic="modern" style:font-pitch="fixed"/>
+  <style:font-face style:name="DejaVu Sans" svg:font-family="'DejaVu Sans'" style:font-adornments="ExtraLight" style:font-family-generic="swiss" style:font-pitch="variable"/>
+  <style:font-face style:name="Nimbus Sans L" svg:font-family="'Nimbus Sans L'" style:font-pitch="variable"/>
+  <style:font-face style:name="Tahoma" svg:font-family="Tahoma, Lucidasans, 'Lucida Sans', 'Arial Unicode MS'" style:font-pitch="variable"/>
+  <style:font-face style:name="Nimbus Roman No9 L" svg:font-family="'Nimbus Roman No9 L'" style:font-family-generic="roman" style:font-pitch="variable"/>
+  <style:font-face style:name="Bitstream Vera Sans" svg:font-family="'Bitstream Vera Sans'" style:font-family-generic="swiss" style:font-pitch="variable"/>
+  </office:font-face-decls>
+  <office:automatic-styles>
+    %s
+    <style:style style:name="P_table_cell" style:family="paragraph" style:parent-style-name="Table_Contents">
+      <style:paragraph-properties fo:text-align="justify" style:justify-single-word="false"/>
+    </style:style>
+  </office:automatic-styles>
+  <office:body>
+    <office:text text:use-soft-page-breaks="true">
+      <office:forms form:automatic-focus="false" form:apply-design-mode="false"/>
+      <text:sequence-decls>
+        <text:sequence-decl text:display-outline-level="0" text:name="Illustration"/>
+        <text:sequence-decl text:display-outline-level="0" text:name="Table"/>
+        <text:sequence-decl text:display-outline-level="0" text:name="Text"/>
+        <text:sequence-decl text:display-outline-level="0" text:name="Drawing"/>
+      </text:sequence-decls>
+  ┃",
+    (doc_matters.has.tables > 0) ? _has_tables : "",
+  );
+    return _odt_head;
+  }
+  string odt_body(D,I)(
+    const D    doc_abstraction,
+          I    doc_matters,
+  ) {
+    mixin formatODT;
+    auto odt_format = formatODT();
+    string delimit = "";
+    string doc_odt = "";
+    string _txt = "";
+    foreach (part; doc_matters.has.keys_seq.scroll) {
+      foreach (obj; doc_abstraction[part]) {
+        switch (obj.metainfo.is_of_part) {
+        case "frontmatter":              assert(part == "head" || "toc");
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              _txt = delimit ~ odt_format.heading(obj, doc_matters);
+              goto default;
+            case "toc":
+              _txt = odt_format.para(obj, doc_matters);
+              goto default;
+            default:
+              doc_odt ~= _txt;
+              _txt = "";
+              break;
+            }
+            break;
+          default: break;
+          }
+          break;
+        case "body":                     assert(part == "body" || "head"); // surprise
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              _txt = delimit ~ odt_format.heading(obj, doc_matters);
+              goto default;
+            case "para":
+              _txt = odt_format.para(obj, doc_matters);
+              goto default;
+            default:
+              doc_odt ~= _txt;
+              _txt = "";
+              break;
+            }
+            break;
+          case "block":
+            switch (obj.metainfo.is_a) {
+            case "quote":
+              _txt = odt_format.quote(obj, doc_matters);
+              goto default;
+            case "group":
+              _txt = odt_format.group(obj, doc_matters);
+              goto default;
+            case "block":
+              _txt = odt_format.block(obj, doc_matters);
+              goto default;
+            case "verse":
+              _txt = odt_format.verse(obj, doc_matters);
+              goto default;
+            case "code":
+              _txt = odt_format.code(obj, doc_matters);
+              goto default;
+            case "table":
+              _txt = odt_format.table(obj, doc_matters);
+              goto default;
+            default:
+              doc_odt ~= _txt;
+              _txt = "";
+              break;
+            }
+            break;
+          default: break;
+          }
+          break;
+        case "backmatter":
+          assert(part == "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              _txt = delimit ~ odt_format.heading(obj, doc_matters);
+              goto default;
+            case "endnote":              assert(part == "endnotes");
+              _txt = odt_format.para(obj, doc_matters);
+              goto default;
+            case "glossary":             assert(part == "glossary");
+              _txt = odt_format.para(obj, doc_matters);
+              goto default;
+            case "bibliography":         assert(part == "bibliography");
+              _txt = odt_format.para(obj, doc_matters);
+              goto default;
+            case "bookindex":            assert(part == "bookindex");
+              _txt = odt_format.para(obj, doc_matters);
+              goto default;
+            case "blurb":                assert(part == "blurb");
+              _txt = odt_format.para(obj, doc_matters);
+              goto default;
+            default:
+              doc_odt ~= _txt;
+              _txt = "";
+              break;
+            }
+            break;
+          default: break;
+          }
+          break;
+        case "comment":
+          break;
+        default:
+          { /+ debug +/
+            if (doc_matters.opt.action.debug_do
+            && doc_matters.opt.action.vox_gt1) {
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.text);
+            }
+          }
+          break;
+        }
+      }
+    }
+    return doc_odt;
+  }
+  
+  string odt_tail() {
+    string _odt_tail = format(q"┃<text:p text:style-name="P_normal">spine: &lt;<text:a xl:type="simple" xl:href="https://www.sisudoc.org">www.sisudoc.org</text:a>&gt; and &lt;<text:a xl:type="simple" xl:href="https://www.sisudoc.org">www.sisudoc.org</text:a>&gt;</text:p>
+  </office:text></office:body></office:document-content>┃",);
+    return _odt_tail;
+  }
+  string content_xml(D,I)(
+    const D    doc_abstraction,
+          I    doc_matters,
+  ) {
+    string _content_xml;
+    string break_line = (doc_matters.opt.action.debug_do) ? "\n" : "";
+    string odt_break_page = format(q"┃<text:p text:style-name="P_normal_page_new"/>┃",);
+    string br_pg          = format(q"┃<text:p text:style-name="P_normal_page_new"/>┃",);
+    _content_xml ~= odt_head(doc_matters);
+    _content_xml ~= odt_body(doc_abstraction, doc_matters);
+    _content_xml ~= odt_tail;
+    return _content_xml;
+  }
+  string manifest_xml(M)(
+    auto ref              M    doc_matters,
+  ) {
+    string _bullet = format(q"┃<manifest:file-entry manifest:media-type="" manifest:full-path="Pictures/bullet_09.png"/>┃");
+    string[] _images = [ _bullet ];
+    foreach (image; doc_matters.srcs.image_list) {
+      _images ~= format(q"┃    <manifest:file-entry manifest:media-type="" manifest:full-path="Pictures/%s"/>┃", image);
+    }
+    string _manifest_xml = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
+  <manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">
+    <manifest:file-entry manifest:media-type="application/vnd.oasis.opendocument.text" manifest:version="1.2" manifest:full-path="/"/>
+    <manifest:file-entry manifest:media-type="text/xml" manifest:full-path="styles.xml"/>
+    <manifest:file-entry manifest:media-type="text/xml" manifest:full-path="content.xml"/>
+    %s
+    <manifest:file-entry manifest:media-type="text/xml" manifest:full-path="meta.xml"/>
+    <manifest:file-entry manifest:media-type="application/rdf+xml" manifest:full-path="manifest.rdf"/>
+    <manifest:file-entry manifest:media-type="application/binary" manifest:full-path="layout-cache"/>
+    <manifest:file-entry manifest:media-type="text/xml" manifest:full-path="settings.xml"/>
+  </manifest:manifest>
+  ┃",
+  _images.join("\n"),
+  );
+    return _manifest_xml;
+  }
+  void images_cp(M)(
+    auto ref              M    doc_matters,
+  ) {
+    { /+ (copy odt images) +/
+      import sisudoc.io_out.paths_output;
+      auto pth_odt = spinePathsODT!()(doc_matters);
+      foreach (image; doc_matters.srcs.image_list) {
+        auto fn_src_in = doc_matters.src.image_dir_path ~ "/" ~ image;
+        auto fn_src_out_file = pth_odt.image_dir("fs") ~ "/" ~ image;
+        auto fn_src_out_zip = pth_odt.image_dir("zip") ~ "/" ~ image;
+        if (exists(fn_src_in)) {
+          if (doc_matters.opt.action.debug_do) {
+            if (doc_matters.opt.action.debug_do) {
+              fn_src_in.copy(fn_src_out_file);
+            }
+          }
+        }
+      }
+    }
+    // return 0;
+  }
+  string meta_xml(M)(
+    auto ref              M    doc_matters,
+  ) {
+    /+ (meta_xml includes output time-stamp) +/
+    string _meta_xml = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
+  <office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xl="https://www.w3.org/1999/xlink" xmlns:dc="https://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:ooo="https://openoffice.org/2004/office" xmlns:grddl="https://www.w3.org/2003/g/data-view#" office:version="1.2">
+    <office:meta>
+      <meta:generator>%s</meta:generator>
+      <meta:creation-date>%s</meta:creation-date>
+      <dc:date>%s</dc:date>
+      <dc:language>en-US</dc:language>
+    </office:meta>
+  </office:document-meta>
+  ┃",
+  doc_matters.generator_program.name_and_version,
+  doc_matters.generated_time,
+  doc_matters.generated_time,
+  );
+    return _meta_xml;
+  }
+  void dirtree(I)(
+    I   doc_matters,
+  ) {
+    import sisudoc.io_out.paths_output;
+    auto pth_odt = spinePathsODT!()(doc_matters);
+    if (doc_matters.opt.action.debug_do) { /+ (dir tree) +/
+      if (!exists(pth_odt.meta_inf_dir("fs"))) {
+        pth_odt.meta_inf_dir("fs").mkdirRecurse;
+      }
+      if (!exists(pth_odt.image_dir("fs"))) {
+        pth_odt.image_dir("fs").mkdirRecurse;
+      }
+    }
+    if (!exists(pth_odt.base_pth)) {
+      pth_odt.base_pth.mkdirRecurse;
+    }
+    if (!exists(pth_odt.base_pth ~ "/index.html")) {
+      import sisudoc.io_out.html_snippet;
+      mixin htmlSnippet;
+      auto f = File(pth_odt.base_pth ~"/index.html", "w");
+      f.writeln(format_html_blank_page_guide_home(
+        "../../css/html_scroll.css",
+        "https://sisudoc.org",
+        "../../index.html",
+      ));
+    }
+    // return 0;
+  }
+  string mimetype() {
+    string mimetype_ = format(q"┃application/vnd.oasis.opendocument.text┃");
+    return mimetype_;
+  }
+  string manifest_rdf() {
+    string _manifest_rdf = format(q"┃<?xml version="1.0" encoding="utf-8"?>
+  <rdf:RDF xmlns:rdf="https://www.w3.org/1999/02/22-rdf-syntax-ns#">
+    <rdf:Description rdf:about="styles.xml">
+      <rdf:type rdf:resource="https://docs.oasis-open.org/ns/office/1.2/meta/odf#StylesFile"/>
+    </rdf:Description>
+    <rdf:Description rdf:about="">
+      <ns0:hasPart xmlns:ns0="https://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="styles.xml"/>
+    </rdf:Description>
+    <rdf:Description rdf:about="content.xml">
+      <rdf:type rdf:resource="https://docs.oasis-open.org/ns/office/1.2/meta/odf#ContentFile"/>
+    </rdf:Description>
+    <rdf:Description rdf:about="">
+      <ns0:hasPart xmlns:ns0="https://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="content.xml"/>
+    </rdf:Description>
+    <rdf:Description rdf:about="">
+      <rdf:type rdf:resource="https://docs.oasis-open.org/ns/office/1.2/meta/pkg#Document"/>
+    </rdf:Description>
+  </rdf:RDF>
+  ┃");
+    return _manifest_rdf;
+  }
+  string settings_xml() {
+    string _settings_xml = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
+  <office:document-settings xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:xl="https://www.w3.org/1999/xlink" xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" xmlns:ooo="https://openoffice.org/2004/office" office:version="1.2">
+    <office:settings>
+      <config:config-item-set config:name="ooo:view-settings">
+        <config:config-item config:name="ViewAreaTop" config:type="int">0</config:config-item>
+        <config:config-item config:name="ViewAreaLeft" config:type="int">0</config:config-item>
+        <config:config-item config:name="ViewAreaWidth" config:type="int">0</config:config-item>
+        <config:config-item config:name="ViewAreaHeight" config:type="int">0</config:config-item>
+        <config:config-item config:name="ShowRedlineChanges" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="InBrowseMode" config:type="boolean">false</config:config-item>
+        <config:config-item-map-indexed config:name="Views">
+          <config:config-item-map-entry>
+            <config:config-item config:name="ViewId" config:type="string">view2</config:config-item>
+            <config:config-item config:name="ViewLeft" config:type="int">0</config:config-item>
+            <config:config-item config:name="ViewTop" config:type="int">0</config:config-item>
+            <config:config-item config:name="VisibleLeft" config:type="int">0</config:config-item>
+            <config:config-item config:name="VisibleTop" config:type="int">0</config:config-item>
+            <config:config-item config:name="VisibleRight" config:type="int">0</config:config-item>
+            <config:config-item config:name="VisibleBottom" config:type="int">0</config:config-item>
+            <config:config-item config:name="ZoomType" config:type="short">0</config:config-item>
+            <config:config-item config:name="ViewLayoutColumns" config:type="short">2</config:config-item>
+            <config:config-item config:name="ViewLayoutBookMode" config:type="boolean">true</config:config-item>
+            <config:config-item config:name="ZoomFactor" config:type="short">100</config:config-item>
+            <config:config-item config:name="IsSelectedFrame" config:type="boolean">false</config:config-item>
+          </config:config-item-map-entry>
+        </config:config-item-map-indexed>
+      </config:config-item-set>
+      <config:config-item-set config:name="ooo:configuration-settings">
+        <config:config-item config:name="ChartAutoUpdate" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="IsLabelDocument" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="MathBaselineAlignment" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="OutlineLevelYieldsNumbering" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrintLeftPages" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="DoNotJustifyLinesWithManualBreak" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="AlignTabStopPosition" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrintTextPlaceholder" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="UseOldNumbering" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="CurrentDatabaseCommand" config:type="string"/>
+        <config:config-item config:name="ProtectForm" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintBlackFonts" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintProspectRTL" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="SmallCapsPercentage66" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrintControls" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="CharacterCompressionType" config:type="short">0</config:config-item>
+        <config:config-item config:name="PrintHiddenText" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="UseFormerTextWrapping" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="IsKernAsianPunctuation" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintProspect" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintEmptyPages" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="UseFormerObjectPositioning" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="ConsiderTextWrapOnObjPos" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="TableRowKeep" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintReversed" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="TabsRelativeToIndent" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrintRightPages" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrintPaperFromSetup" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="AddFrameOffsets" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="AddParaSpacingToTableCells" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="UpdateFromTemplate" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="AddExternalLeading" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrintSingleJobs" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrinterIndependentLayout" config:type="string">high-resolution</config:config-item>
+        <config:config-item config:name="LinkUpdateMode" config:type="short">1</config:config-item>
+        <config:config-item config:name="PrintAnnotationMode" config:type="short">0</config:config-item>
+        <config:config-item config:name="UseOldPrinterMetrics" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="RedlineProtectionKey" config:type="base64Binary"/>
+        <config:config-item config:name="PrinterSetup" config:type="base64Binary"/>
+        <config:config-item config:name="IgnoreFirstLineIndentInNumbering" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="CollapseEmptyCellPara" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrinterName" config:type="string"/>
+        <config:config-item config:name="InvertBorderSpacing" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintPageBackground" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="DoNotCaptureDrawObjsOnPage" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="ApplyUserData" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="TabAtLeftIndentForParagraphsInList" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="UnxForceZeroExtLeading" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="SaveVersionOnClose" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintFaxName" config:type="string"/>
+        <config:config-item config:name="AddParaTableSpacing" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="PrintDrawings" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="LoadReadonly" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintGraphics" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="FieldAutoUpdate" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="AllowPrintJobCancel" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="UseFormerLineSpacing" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="SaveGlobalDocumentLinks" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="CurrentDatabaseDataSource" config:type="string"/>
+        <config:config-item config:name="IgnoreTabsAndBlanksForLineCalculation" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="CurrentDatabaseCommandType" config:type="int">0</config:config-item>
+        <config:config-item config:name="DoNotResetParaAttrsForNumFont" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="ClipAsCharacterAnchoredWriterFlyFrames" config:type="boolean">false</config:config-item>
+        <config:config-item config:name="PrintTables" config:type="boolean">true</config:config-item>
+        <config:config-item config:name="AddParaTableSpacingAtStart" config:type="boolean">true</config:config-item>
+      </config:config-item-set>
+    </office:settings>
+  </office:document-settings>
+  ┃");
+    return _settings_xml;
+  }
+  string styles_xml() {
+    string _styles_xml = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
+  <office:document-styles xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xl="https://www.w3.org/1999/xlink" xmlns:dc="https://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="https://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="https://openoffice.org/2004/office" xmlns:ooow="https://openoffice.org/2004/writer" xmlns:oooc="https://openoffice.org/2004/calc" xmlns:dom="https://www.w3.org/2001/xml-events" xmlns:rpt="https://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="https://www.w3.org/1999/xhtml" xmlns:grddl="https://www.w3.org/2003/g/data-view#" xmlns:tableooo="https://openoffice.org/2009/table" xmlns:css3t="https://www.w3.org/TR/css3-text/" office:version="1.2">
+    <office:font-face-decls>
+      <style:font-face style:name="DejaVu Sans Mono" svg:font-family="'DejaVu Sans Mono'" style:font-adornments="Book" style:font-family-generic="modern" style:font-pitch="fixed"/>
+      <style:font-face style:name="Nimbus Sans L" svg:font-family="'Nimbus Sans L'" style:font-pitch="variable"/>
+      <style:font-face style:name="Tahoma" svg:font-family="Tahoma, Lucidasans, 'Lucida Sans', 'Arial Unicode MS'" style:font-pitch="variable"/>
+      <style:font-face style:name="Nimbus Roman No9 L" svg:font-family="'Nimbus Roman No9 L'" style:font-family-generic="roman" style:font-pitch="variable"/>
+      <style:font-face style:name="Bitstream Vera Sans" svg:font-family="'Bitstream Vera Sans'" style:font-family-generic="swiss" style:font-pitch="variable"/>
+    </office:font-face-decls>
+    <office:styles>
+      <style:default-style style:family="graphic">
+        <style:graphic-properties fo:wrap-option="wrap" draw:shadow-offset-x="0.3cm" draw:shadow-offset-y="0.3cm" draw:start-line-spacing-horizontal="0.283cm" draw:start-line-spacing-vertical="0.283cm" draw:end-line-spacing-horizontal="0.283cm" draw:end-line-spacing-vertical="0.283cm" style:flow-with-text="false"/>
+        <style:paragraph-properties style:text-autospace="ideograph-alpha" style:line-break="strict" style:writing-mode="lr-tb" style:font-independent-line-spacing="false">
+          <style:tab-stops/>
+        </style:paragraph-properties>
+        <style:text-properties style:use-window-font-color="true" fo:font-size="12pt" fo:language="en" fo:country="US" style:font-size-asian="12pt" style:language-asian="zxx" style:country-asian="none" style:font-size-complex="12pt" style:language-complex="zxx" style:country-complex="none"/>
+      </style:default-style>
+      <style:default-style style:family="paragraph">
+        <style:paragraph-properties fo:hyphenation-ladder-count="no-limit" style:text-autospace="ideograph-alpha" style:punctuation-wrap="hanging" style:line-break="strict" style:tab-stop-distance="1.251cm" style:writing-mode="page"/>
+        <style:text-properties style:use-window-font-color="true" style:font-name="Nimbus Roman No9 L" fo:font-size="12pt" fo:language="en" fo:country="US" style:font-name-asian="Nimbus Sans L" style:font-size-asian="12pt" style:language-asian="zxx" style:country-asian="none" style:font-name-complex="Nimbus Sans L" style:font-size-complex="12pt" style:language-complex="zxx" style:country-complex="none" fo:hyphenate="false" fo:hyphenation-remain-char-count="2" fo:hyphenation-push-char-count="2"/>
+      </style:default-style>
+      <style:default-style style:family="table">
+        <style:table-properties table:border-model="collapsing"/>
+      </style:default-style>
+      <style:default-style style:family="table-row">
+        <style:table-row-properties fo:keep-together="auto"/>
+      </style:default-style>
+      <style:style style:name="Standard" style:family="paragraph" style:class="text"/>
+      <style:style style:name="Text_body" style:display-name="Text body" style:family="paragraph" style:class="text">
+        <style:paragraph-properties fo:margin-top="0cm" fo:margin-bottom="0.212cm"/>
+      </style:style>
+      <style:style style:name="P_page_break" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:break-before="page"/>
+      </style:style>
+      <style:style style:name="P_normal" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:text-align="justify" style:justify-single-word="false"/>
+      </style:style>
+      <style:style style:name="P_normal_page_new" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:break-after="page"/>
+      </style:style>
+      <style:style style:name="P_indent_0" style:display-name="Paragraph indent 0" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:text-align="justify" style:justify-single-word="false"/>
+      </style:style>
+      <style:style style:name="P_indent_1" style:display-name="Paragraph indent 1" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="1cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_2" style:display-name="Paragraph indent 2" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="2cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_3" style:display-name="Paragraph indent 3" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="3cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_4" style:display-name="Paragraph indent 4" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="4cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_5" style:display-name="Paragraph indent 5" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="5cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_6" style:display-name="Paragraph indent 6" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="6cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_7" style:display-name="Paragraph indent 7" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="7cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_8" style:display-name="Paragraph indent 8" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="8cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_indent_9" style:display-name="Paragraph indent 9" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0.199cm" fo:margin-bottom="0.199cm" fo:line-height="150%%" fo:margin-left="9cm" fo:margin-right="0cm" fo:text-align="justify" style:justify-single-word="false" fo:text-indent="0cm" style:auto-text-indent="false"/>
+      </style:style>
+      <style:style style:name="P_h0_i0" style:display-name="Hang 0 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i1" style:display-name="Hang 0 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i2" style:display-name="Hang 0 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i3" style:display-name="Hang 0 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="-3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i4" style:display-name="Hang 0 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="-4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i5" style:display-name="Hang 0 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="-5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i6" style:display-name="Hang 0 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="-6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i7" style:display-name="Hang 0 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="-7cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i8" style:display-name="Hang 0 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-8cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h0_i9" style:display-name="Hang 0 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-9cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i0" style:display-name="Hang 1 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i1" style:display-name="Hang 1 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i2" style:display-name="Hang 1 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i3" style:display-name="Hang 1 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i4" style:display-name="Hang 1 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="-3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i5" style:display-name="Hang 1 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="-4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i6" style:display-name="Hang 1 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="-5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i7" style:display-name="Hang 1 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="-6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i8" style:display-name="Hang 1 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-7cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h1_i9" style:display-name="Hang 1 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-8cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i0" style:display-name="Hang 2 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i1" style:display-name="Hang 2 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i2" style:display-name="Hang 2 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i3" style:display-name="Hang 2 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i4" style:display-name="Hang 2 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i5" style:display-name="Hang 2 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="-3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i6" style:display-name="Hang 2 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="-4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i7" style:display-name="Hang 2 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="-5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i8" style:display-name="Hang 2 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h2_i9" style:display-name="Hang 2 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-7cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i0" style:display-name="Hang 3 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i1" style:display-name="Hang 3 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i2" style:display-name="Hang 3 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i3" style:display-name="Hang 3 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i4" style:display-name="Hang 3 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i5" style:display-name="Hang 3 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i6" style:display-name="Hang 3 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="-3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i7" style:display-name="Hang 3 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="-4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i8" style:display-name="Hang 3 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h3_i9" style:display-name="Hang 3 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i0" style:display-name="Hang 4 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i1" style:display-name="Hang 4 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i2" style:display-name="Hang 4 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i3" style:display-name="Hang 4 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i4" style:display-name="Hang 4 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i5" style:display-name="Hang 4 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i6" style:display-name="Hang 4 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i7" style:display-name="Hang 4 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="-3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i8" style:display-name="Hang 4 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h4_i9" style:display-name="Hang 4 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i0" style:display-name="Hang 5 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i1" style:display-name="Hang 5 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i2" style:display-name="Hang 5 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i3" style:display-name="Hang 5 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i4" style:display-name="Hang 5 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i5" style:display-name="Hang 5 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i6" style:display-name="Hang 5 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i7" style:display-name="Hang 5 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i8" style:display-name="Hang 5 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h5_i9" style:display-name="Hang 5 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i0" style:display-name="Hang 6 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i1" style:display-name="Hang 6 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i2" style:display-name="Hang 6 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i3" style:display-name="Hang 6 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i4" style:display-name="Hang 6 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i5" style:display-name="Hang 6 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i6" style:display-name="Hang 6 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i7" style:display-name="Hang 6 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i8" style:display-name="Hang 6 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h6_i9" style:display-name="Hang 6 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i0" style:display-name="Hang 7 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="7cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i1" style:display-name="Hang 7 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i2" style:display-name="Hang 7 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i3" style:display-name="Hang 7 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i4" style:display-name="Hang 7 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i5" style:display-name="Hang 7 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i6" style:display-name="Hang 7 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i7" style:display-name="Hang 7 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i8" style:display-name="Hang 7 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h7_i9" style:display-name="Hang 7 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i0" style:display-name="Hang 8 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="8cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i1" style:display-name="Hang 8 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="7cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i2" style:display-name="Hang 8 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i3" style:display-name="Hang 8 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i4" style:display-name="Hang 8 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i5" style:display-name="Hang 8 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i6" style:display-name="Hang 8 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i7" style:display-name="Hang 8 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i8" style:display-name="Hang 8 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h8_i9" style:display-name="Hang 8 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="-1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i0" style:display-name="Hang 9 Indent 0" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:text-indent="9cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i1" style:display-name="Hang 9 Indent 1" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="1cm" fo:margin-right="0cm" fo:text-indent="8cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i2" style:display-name="Hang 9 Indent 2" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="2cm" fo:margin-right="0cm" fo:text-indent="7cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i3" style:display-name="Hang 9 Indent 3" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="3cm" fo:margin-right="0cm" fo:text-indent="6cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i4" style:display-name="Hang 9 Indent 4" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="4cm" fo:margin-right="0cm" fo:text-indent="5cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i5" style:display-name="Hang 9 Indent 5" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="5cm" fo:margin-right="0cm" fo:text-indent="4cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i6" style:display-name="Hang 9 Indent 6" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="6cm" fo:margin-right="0cm" fo:text-indent="3cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i7" style:display-name="Hang 9 Indent 7" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="7cm" fo:margin-right="0cm" fo:text-indent="2cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i8" style:display-name="Hang 9 Indent 8" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="8cm" fo:margin-right="0cm" fo:text-indent="1cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="P_h9_i9" style:display-name="Hang 9 Indent 9" style:family="paragraph" style:parent-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-left="9cm" fo:margin-right="0cm" fo:text-indent="0cm" style:auto-text-indent="false">
+        <style:tab-stops>
+        <style:tab-stop style:position="0cm"/>
+        </style:tab-stops>
+        </style:paragraph-properties>
+      </style:style>
+      <style:style style:name="Span_bold" style:family="text">
+        <style:text-properties fo:font-weight="bold" style:font-weight-asian="bold" style:font-weight-complex="bold"/>
+      </style:style>
+      <style:style style:name="Span_italic" style:family="text">
+        <style:text-properties fo:font-style="italic" style:font-style-asian="italic" style:font-style-complex="italic"/>
+      </style:style>
+      <style:style style:name="Span_underscore" style:family="text">
+        <style:text-properties style:text-underline-style="solid" style:text-underline-width="auto" style:text-underline-color="font-color"/>
+      </style:style>
+      <style:style style:name="Span_superscript" style:family="text">
+        <style:text-properties style:text-position="super 58%%"/>
+      </style:style>
+      <style:style style:name="Span_subscript" style:family="text">
+        <style:text-properties style:text-position="sub 58%%"/>
+      </style:style>
+      <style:style style:name="Span_monospace" style:family="text">
+        <style:text-properties style:font-name="DejaVu Sans Mono" fo:font-size="10pt" fo:font-weight="normal" fo:background-color="#e6e6e6"/>
+      </style:style>
+      <style:style style:name="Heading" style:family="paragraph" style:next-style-name="Text_body" style:class="text">
+        <style:paragraph-properties fo:margin-top="0.423cm" fo:margin-bottom="0.212cm" fo:keep-with-next="always"/>
+        <style:text-properties style:font-name="Bitstream Vera Sans" fo:font-size="14pt" style:font-size-asian="14pt" style:font-name-complex="Tahoma" style:font-size-complex="14pt"/>
+      </style:style>
+      <style:style style:name="H_1" style:display-name="Heading 1" style:family="paragraph" style:next-style-name="Text_body" style:default-outline-level="1" style:class="text">
+        <style:text-properties fo:font-size="120%%" fo:font-weight="bold" style:font-size-asian="120%%" style:font-weight-asian="bold" style:font-size-complex="115%%" style:font-weight-complex="bold"/>
+      </style:style>
+      <style:style style:name="H_2" style:display-name="Heading 2" style:family="paragraph" style:next-style-name="Text_body" style:default-outline-level="2" style:class="text">
+        <style:text-properties fo:font-size="115%%" fo:font-weight="bold" style:font-size-asian="115%%" style:font-weight-asian="bold" style:font-size-complex="115%%" style:font-weight-complex="bold"/>
+      </style:style>
+      <style:style style:name="H_3" style:display-name="Heading 3" style:family="paragraph" style:next-style-name="Text_body" style:default-outline-level="3" style:class="text">
+        <style:text-properties fo:font-size="110%%" fo:font-weight="bold" style:font-size-asian="110%%" style:font-weight-asian="bold" style:font-size-complex="115%%" style:font-weight-complex="bold"/>
+      </style:style>
+      <style:style style:name="H_4" style:display-name="Heading 4" style:family="paragraph" style:next-style-name="Text_body" style:default-outline-level="4" style:class="text">
+        <style:text-properties fo:font-size="12pt" fo:font-style="italic" fo:font-weight="bold" style:font-size-asian="12pt" style:font-style-asian="italic" style:font-weight-asian="bold" style:font-size-complex="12pt" style:font-style-complex="italic" style:font-weight-complex="bold"/>
+      </style:style>
+      <style:style style:name="H_5" style:display-name="Heading 5" style:family="paragraph" style:next-style-name="Text_body" style:default-outline-level="5" style:class="text">
+        <style:text-properties fo:font-size="90%%" fo:font-style="italic" fo:font-weight="bold" style:font-size-asian="90%%" style:font-style-asian="italic" style:font-weight-asian="bold" style:font-size-complex="90%%" style:font-style-complex="italic" style:font-weight-complex="bold"/>
+      </style:style>
+      <style:style style:name="H_6" style:display-name="Heading 6" style:family="paragraph" style:next-style-name="Text_body" style:default-outline-level="6" style:class="text">
+        <style:text-properties fo:font-size="80%%" fo:font-style="italic" fo:font-weight="bold" style:font-size-asian="80%%" style:font-style-asian="italic" style:font-weight-asian="bold" style:font-size-complex="80%%" style:font-style-complex="italic" style:font-weight-complex="bold"/>
+      </style:style>
+      <style:style style:name="P_group" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0cm" fo:margin-bottom="0cm" fo:line-height="100%%" fo:text-align="justify" style:justify-single-word="false"/>
+      </style:style>
+      <style:style style:name="P_code" style:family="paragraph" style:parent-style-name="Standard">
+        <style:paragraph-properties fo:margin-top="0cm" fo:margin-bottom="0cm" fo:line-height="100%%" fo:text-align="start" style:justify-single-word="false"/>
+        <style:text-properties style:font-name="DejaVu Sans Mono" fo:font-size="9pt" fo:font-weight="normal" fo:background-color="#e6e6e6"/>
+      </style:style>
+      <style:style style:name="Footnote" style:family="paragraph" style:class="extra">
+        <style:paragraph-properties fo:margin-left="0.499cm" fo:margin-right="0cm" fo:text-indent="-0.499cm" style:auto-text-indent="false" text:number-lines="false" text:line-number="0"/>
+        <style:text-properties fo:font-size="10pt" style:font-size-asian="10pt" style:font-size-complex="10pt"/>
+      </style:style>
+      <style:style style:name="Table_Contents" style:display-name="Table Contents" style:family="paragraph" style:parent-style-name="Standard" style:class="extra">
+        <style:paragraph-properties text:number-lines="false" text:line-number="0"/>
+      </style:style>
+      <style:style style:name="Footnote_symbol" style:display-name="Footnote Symbol" style:family="text"/>
+      <style:style style:name="Footnote_anchor" style:display-name="Footnote Anchor" style:family="text">
+        <style:text-properties style:text-position="super 58%%"/>
+      </style:style>
+      <style:style style:name="Internet_link" style:display-name="Internet link" style:family="text">
+        <style:text-properties fo:color="#000080" fo:language="zxx" fo:country="none" style:text-underline-style="solid" style:text-underline-width="auto" style:text-underline-color="font-color" style:language-asian="zxx" style:country-asian="none" style:language-complex="zxx" style:country-complex="none"/>
+      </style:style>
+      <style:style style:name="Graphics" style:family="graphic">
+        <style:graphic-properties text:anchor-type="paragraph" svg:x="0cm" svg:y="0cm" style:wrap="dynamic" style:number-wrapped-paragraphs="no-limit" style:wrap-contour="false" style:vertical-pos="top" style:vertical-rel="paragraph" style:horizontal-pos="center" style:horizontal-rel="paragraph"/>
+      </style:style>
+      <text:outline-style style:name="Outline">
+        <text:outline-level-style text:level="1" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="2" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="3" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="4" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="5" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="6" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="7" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="8" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="9" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      <text:outline-level-style text:level="10" style:num-format="">
+        <style:list-level-properties text:min-label-distance="0.381cm"/>
+      </text:outline-level-style>
+      </text:outline-style>
+      <text:notes-configuration text:note-class="footnote" text:citation-style-name="Footnote_symbol" text:citation-body-style-name="Footnote_anchor" style:num-format="1" text:start-value="0" text:footnotes-position="page" text:start-numbering-at="document"/>
+      <text:notes-configuration text:note-class="endnote" style:num-format="i" text:start-value="0"/>
+      <text:linenumbering-configuration text:number-lines="false" text:offset="0.499cm" style:num-format="1" text:number-position="left" text:increment="5"/>
+      <style:style style:name="fr1" style:family="graphic" style:parent-style-name="Graphics">
+        <style:graphic-properties style:wrap="none" style:horizontal-pos="left" style:horizontal-rel="paragraph" style:mirror="none" fo:clip="rect(0cm 0cm 0cm 0cm)" draw:luminance="0%%" draw:contrast="0%%" draw:red="0%%" draw:green="0%%" draw:blue="0%%" draw:gamma="100%%" draw:color-inversion="false" draw:image-opacity="100%%" draw:color-mode="standard"/>
+      </style:style>
+      <style:style style:name="gr1" style:family="graphic">
+        <style:graphic-properties draw:stroke="none" draw:fill="none" draw:textarea-horizontal-align="center" draw:textarea-vertical-align="middle" draw:color-mode="standard" draw:luminance="0%%" draw:contrast="0%%" draw:gamma="100%%" draw:red="0%%" draw:green="0%%" draw:blue="0%%" fo:clip="rect(0cm 0cm 0cm 0cm)" draw:image-opacity="100%%" style:mirror="none" style:run-through="background" style:wrap="none" style:vertical-pos="top" style:vertical-rel="baseline" style:horizontal-pos="left" style:horizontal-rel="paragraph" draw:wrap-influence-on-position="once-concurrent" style:flow-with-text="false"/>
+      </style:style>
+      <style:style style:name="gr2" style:family="graphic">
+        <style:graphic-properties draw:stroke="none" draw:fill="none" draw:textarea-horizontal-align="center" draw:textarea-vertical-align="middle" draw:color-mode="standard" draw:luminance="0%%" draw:contrast="0%%" draw:gamma="100%%" draw:red="0%%" draw:green="0%%" draw:blue="0%%" fo:clip="rect(0cm 0cm 0cm 0cm)" draw:image-opacity="100%%" style:mirror="none" style:run-through="background" style:wrap="none" style:vertical-pos="middle" style:vertical-rel="baseline" style:horizontal-pos="left" style:horizontal-rel="paragraph" draw:wrap-influence-on-position="once-concurrent" style:flow-with-text="false"/>
+      </style:style>
+      </office:styles>
+      <office:automatic-styles>
+      <style:page-layout style:name="Mpm1">
+      <style:page-layout-properties fo:page-width="20.999cm" fo:page-height="29.699cm" style:num-format="1" style:print-orientation="portrait" fo:margin-top="2cm" fo:margin-bottom="2cm" fo:margin-left="2cm" fo:margin-right="2cm" style:writing-mode="lr-tb" style:footnote-max-height="0cm">
+      <style:footnote-sep style:width="0.018cm" style:distance-before-sep="0.101cm" style:distance-after-sep="0.101cm" style:line-style="none" style:adjustment="left" style:rel-width="25%%" style:color="#000000"/>
+      </style:page-layout-properties>
+      <style:header-style/>
+      <style:footer-style/>
+      </style:page-layout>
+    </office:automatic-styles>
+    <office:master-styles>
+      <style:master-page style:name="Standard" style:page-layout-name="Mpm1"/>
+    </office:master-styles>
+  </office:document-styles>
+  ┃");
+    return _styles_xml;
+  }
+  @trusted void writeOutputODT(W,I)(
+    const W    odt_content,
+          I    doc_matters,
+  ) {
+    auto pth_odt = spinePathsODT!()(doc_matters);
+    auto fn_odt = pth_odt.odt_file;
+    auto zip = new ZipArchive(); // ZipArchive zip = new ZipArchive();
+    void ODTzip()(string contents, string fn) {
+      auto zip_arc_member_file = new ArchiveMember();
+      zip_arc_member_file.name = fn;
+      auto zip_data = new OutBuffer();
+      (doc_matters.opt.action.debug_do)
+      ? zip_data.write(contents.dup)
+      : zip_data.write(contents.dup
+        .replaceAll(rgx.spaces_line_start, "")
+        .replaceAll(rgx.newline, "")
+        .strip
+      );
+      zip_arc_member_file.expandedData = zip_data.toBytes();
+      zip.addMember(zip_arc_member_file);
+      createZipFile!()(fn_odt, zip.build());
+    }
+    try {
+      if (!exists(pth_odt.base_pth)) { // check
+        pth_odt.base_pth.mkdirRecurse;
+      }
+      {
+        string fn;
+        File f;
+        { fn = pth_odt.mimetype("zip");
+          ODTzip(odt_content.mimetype, fn);
+        }
+        { fn = pth_odt.manifest_rdf("zip");
+          ODTzip(odt_content.manifest_rdf, fn);
+        }
+        { fn = pth_odt.settings_xml("zip");
+          ODTzip(odt_content.settings_xml, fn);
+        }
+        { fn = pth_odt.styles_xml("zip");
+          ODTzip(odt_content.styles_xml, fn);
+        }
+        { fn = pth_odt.content_xml("zip");
+          ODTzip(odt_content.content_xml, fn);
+        }
+        { fn = pth_odt.manifest_xml("zip");
+          ODTzip(odt_content.manifest_xml, fn);
+        }
+        { fn = pth_odt.meta_xml("zip");
+          ODTzip(odt_content.meta_xml, fn);
+        }
+        { /+ (images) +/
+          foreach (image; doc_matters.srcs.image_list) {
+            auto fn_src = doc_matters.src.image_dir_path ~ "/" ~ image;
+            auto fn_out = pth_odt.image_dir("zip") ~ "/" ~ image;
+            if (exists(fn_src)) {
+              {
+                auto zip_arc_member_file = new ArchiveMember();
+                zip_arc_member_file.name = fn_out;
+                auto zip_data = new OutBuffer();
+                zip_data.write(cast(char[]) ((fn_src).read)); // trusted?
+                zip_arc_member_file.expandedData = zip_data.toBytes();
+                zip.addMember(zip_arc_member_file);
+                createZipFile!()(fn_odt, zip.build());
+              }
+            }
+          }
+        }
+        if (doc_matters.opt.action.vox_gt0) {
+          writeln(" ", pth_odt.odt_file);
+        }
+      }
+      if (!exists(pth_odt.base_pth ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pth_odt.base_pth ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+          "../../index.html",
+        ));
+      }
+    } catch (ErrnoException ex) {
+      // Handle error
+    }
+    if (doc_matters.opt.action.debug_do) {
+      pth_odt.mimetype("fs");     /+ (mimetype) +/
+      pth_odt.manifest_rdf("fs"); /+ (manifest.rdf) +/
+      pth_odt.settings_xml("fs"); /+ (settings.xml) +/
+      pth_odt.styles_xml("fs");   /+ (styles_xml) +/
+  
+      pth_odt.content_xml("fs");
+      pth_odt.manifest_xml("fs");
+      pth_odt.meta_xml("fs");
+    }
+  }
+  void outputODT(D,I)(
+    const    D   doc_abstraction,
+             I   doc_matters,
+  ) {
+    struct ODT {
+    /+ fixed output +/
+      string mimetype;
+      string manifest_rdf;
+      string settings_xml;
+      string styles_xml;
+    /+ variable output +/
+      string content_xml;    // substantive content
+      string manifest_xml;   // image list changes
+      string meta_xml;       // time stamp
+    }
+    // auto pth_odt          = spinePathsODT!()(doc_matters);
+    auto odt         = ODT();
+    odt.mimetype     = mimetype;
+    odt.manifest_rdf = manifest_rdf;
+    odt.settings_xml = settings_xml;
+    odt.styles_xml   = styles_xml;
+    odt.content_xml  = content_xml(doc_abstraction, doc_matters);
+    odt.manifest_xml = manifest_xml(doc_matters);
+    odt.meta_xml     = meta_xml(doc_matters);
+    odt.writeOutputODT(doc_matters);
+    dirtree(doc_matters);
+    images_cp(doc_matters);                       // copy images
+  }
+}
diff --git a/src/sisudoc/io_out/package.d b/src/sisudoc/io_out/package.d
new file mode 100644
index 0000000..5c73cb9
--- /dev/null
+++ b/src/sisudoc/io_out/package.d
@@ -0,0 +1,69 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out;
+public import
+  std.algorithm,
+  std.array,
+  std.container,
+  std.exception,
+  std.path,
+  std.process,
+  std.range,
+  std.regex,
+  std.stdio,
+  std.string,
+  std.typecons,
+  // std.uni,
+  std.utf;
+public import
+  sisudoc.share.defaults,
+  sisudoc.io_in.paths_source,
+  sisudoc.io_out.defaults,
+  sisudoc.io_out.paths_output;
diff --git a/src/sisudoc/io_out/paths_output.d b/src/sisudoc/io_out/paths_output.d
new file mode 100644
index 0000000..f134f41
--- /dev/null
+++ b/src/sisudoc/io_out/paths_output.d
@@ -0,0 +1,672 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  default settings
++/
+module sisudoc.io_out.paths_output;
+@safe:
+import
+  std.array,
+  std.path,
+  std.regex,
+  std.stdio;
+import
+  sisudoc.meta.rgx_files;
+template spineOutPaths() {
+  auto spineOutPaths()(
+    string output_pth_root,
+    string lng = "",
+  ) {
+    struct _PathsStruct {
+      string output_root() {
+        return (output_pth_root.length > 0)
+        ? output_pth_root : "";
+      }
+      string output_base() {
+        return ((output_root.chainPath(lng)).asNormalizedPath).array;
+      }
+      string internal_base() {
+        return lng.asNormalizedPath.array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineOutPathSQLite() {
+  auto spineOutPathSQLite(Po)(
+    Po  output_pth_root,
+  ) {
+    struct _PathsStruct {
+      string output_root() {
+        return (output_pth_root.length > 0)
+        ? output_pth_root : "";
+      }
+      string output_base() {
+        return ((output_root).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineOutPathSQLiteCGI() {
+  auto spineOutPathSQLiteCGI(Po)(
+    Po  output_pth_root,
+  ) {
+    struct _PathsStruct {
+      string output_root() {
+        return (output_pth_root.length > 0)
+        ? output_pth_root : "";
+      }
+      string output_base() {
+        return ((output_root).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineOutPathsFnPd() {
+  /+ TODO stuff to work out here +/
+  auto spineOutPathsFnPd(Fn,Pn)(
+    Fn  fn_src_pth,
+    Pn  pod_name_with_path
+  ) {
+    struct _PathsStruct {
+      string base_filename() {
+        return fn_src_pth.baseName.stripExtension;
+      }
+      string base_pod_and_filename() { // TODO
+        /+
+          - if pod,
+            - pod_name
+            - file_name
+            - if pod_name == file_name
+              - file_name
+            - else if pod_name != file_name
+              - pod_name.file_name
+        +/
+        string _fn_src = fn_src_pth.baseName.stripExtension;
+        string _output_base_name;
+        if (!(pod_name_with_path.empty)) {
+          if (pod_name_with_path == _fn_src) {
+            _output_base_name = _fn_src;
+          } else {
+            _output_base_name = pod_name_with_path ~ "." ~ _fn_src;
+          }
+        } else {
+          _output_base_name = _fn_src;
+        }
+        return _output_base_name;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+
+template spineDocRootTreeHTML() {
+  auto spineDocRootTreeHTML()(string lng) {
+    auto lng_pth = spineOutPaths!()("", lng);
+    string base_dir = "html";
+    string suffix = ".html";
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base_filename_scroll(string fn_src) {
+        return base_filename(fn_src);
+      }
+      string base_filename_seg(string fn_src) {
+        return base_filename(fn_src);
+      }
+      string doc_root() {
+        return ((lng_pth.output_root).asNormalizedPath).array;
+      }
+      string base() {
+        return (((lng).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string image() {
+        return (("image").asNormalizedPath).array;
+      }
+      string css() {
+        return (("css").asNormalizedPath).array;
+      }
+      string fn_seg_css() {
+        return ((css.chainPath("html_seg.css")).asNormalizedPath).array;
+      }
+      string fn_scroll_css() {
+        return ((css.chainPath("html_scroll.css")).asNormalizedPath).array;
+      }
+      string seg(string fn_src) {
+        return ((base.chainPath(base_filename_seg(fn_src))).asNormalizedPath).array;
+      }
+      string fn_metadata(string fn_src) {
+        return ((base.chainPath("metadata." ~ base_filename_scroll(fn_src) ~ suffix)).asNormalizedPath).array;
+      }
+      string fn_scroll(string fn_src) {
+        return ((base.chainPath(base_filename_scroll(fn_src) ~ suffix)).asNormalizedPath).array;
+      }
+      string fn_seg(string fn_src, string seg_filename) {
+        return ((seg(fn_src).chainPath(seg_filename ~ suffix)).asNormalizedPath).array;
+      }
+      string tail_seg(string fn_src) {
+        return lng ~ "/html/" ~ base_filename_seg(fn_src);
+      }
+      string tail_fn_scroll(string fn_src) {
+        return lng ~ "/html/" ~ base_filename_scroll(fn_src) ~ suffix;
+      }
+      string tail_fn_seg(string fn_src, string seg_filename) {
+        return lng ~ "/html/" ~ seg(fn_src) ~ "/" ~ seg_filename ~ suffix;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsHTML() {
+  auto spinePathsHTML()(
+    string output_path_root,
+    string lng,
+  ) {
+    auto doc_tree = spineDocRootTreeHTML!()(lng);
+    string base_dir = "html";
+    string suffix = ".html";
+    struct _PathsStruct {
+      string doc_root() {
+        return ((output_path_root.chainPath(doc_tree.doc_root)).asNormalizedPath).array;
+      }
+      string curate(string fn_curate) {
+        return doc_root ~ "/" ~ fn_curate;
+      }
+      string internal_base() {
+        return ((doc_tree.base).asNormalizedPath).array;
+      }
+      string base() {
+        return ((output_path_root.chainPath(doc_tree.base)).asNormalizedPath).array;
+      }
+      string image() {
+        return ((output_path_root.chainPath(doc_tree.image)).asNormalizedPath).array;
+      }
+      string css() {
+        return ((output_path_root.chainPath(doc_tree.css)).asNormalizedPath).array;
+      }
+      string fn_seg_css() {
+        return ((output_path_root.chainPath(doc_tree.fn_seg_css)).asNormalizedPath).array;
+      }
+      string fn_scroll_css() {
+        return ((output_path_root.chainPath(doc_tree.fn_scroll_css)).asNormalizedPath).array;
+      }
+      string seg(string fn_src) {
+        return ((output_path_root.chainPath(doc_tree.seg(fn_src))).asNormalizedPath).array;
+      }
+      string fn_metadata(string fn_src) {
+        return ((output_path_root.chainPath(doc_tree.fn_metadata(fn_src))).asNormalizedPath).array;
+      }
+      string fn_scroll(string fn_src) {
+        return ((output_path_root.chainPath(doc_tree.fn_scroll(fn_src))).asNormalizedPath).array;
+      }
+      string fn_seg(string fn_src, string seg_filename) {
+        return ((output_path_root.chainPath(doc_tree.fn_seg(fn_src, seg_filename))).asNormalizedPath).array;
+      }
+      string tail_seg(string fn_src) {
+        return doc_tree.tail_seg(fn_src);
+      }
+      string tail_fn_scroll(string fn_src) {
+        return doc_tree.tail_fn_scroll(fn_src);
+      }
+      string tail_fn_seg(string fn_src, string seg_filename) {
+        return doc_tree.tail_fn_seg(fn_src, seg_filename);
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineUrlsHTML() {
+  import std.format;
+  auto spineUrlsHTML()(
+    string url_doc_root,
+    string lng,
+  ) {
+    auto doc_tree = spineDocRootTreeHTML!()(lng);
+    string base_dir = "html";
+    string suffix = ".html";
+    struct _PathsStruct {
+      string doc_root() {
+        return url_doc_root ~ ((doc_tree.doc_root).asNormalizedPath).array;
+      }
+      string curate(string fn_curate) {
+        return format(q"┃%s/%s┃",
+          doc_root,
+          fn_curate,
+        );
+      }
+      string base() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.base).asNormalizedPath).array,
+        );
+      }
+      string image() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.image).asNormalizedPath).array,
+        );
+      }
+      string css() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.css).asNormalizedPath).array,
+        );
+      }
+      string fn_seg_css() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_seg_css).asNormalizedPath).array,
+        );
+      }
+      string fn_scroll_css() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_scroll_css).asNormalizedPath).array,
+        );
+      }
+      string seg(string fn_src) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.seg(fn_src)).asNormalizedPath).array,
+        );
+      }
+      string fn_metadata(string fn_src) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_metadata(fn_src)).asNormalizedPath).array,
+        );
+      }
+      string fn_scroll(string fn_src) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_scroll(fn_src)).asNormalizedPath).array,
+        );
+      }
+      string fn_seg(string fn_src, string seg_filename) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_seg(fn_src, seg_filename)).asNormalizedPath).array,
+        );
+      }
+      string fn_scroll_obj_num(string fn_src, string obj_num) {
+        return format(q"┃%s/%s#%s┃",
+          url_doc_root,
+          ((doc_tree.fn_scroll(fn_src)).asNormalizedPath).array,
+          obj_num,
+        );
+      }
+      string fn_seg_obj_num(string fn_src, string seg_filename, string obj_num) {
+        return format(q"┃%s/%s#%s┃",
+          url_doc_root,
+          ((doc_tree.fn_seg(fn_src, seg_filename)).asNormalizedPath).array,
+          obj_num,
+        );
+      }
+      string tail_seg(string fn_src) {
+        return doc_tree.tail_seg(fn_src);
+      }
+      string tail_fn_scroll(string fn_src) {
+        return doc_tree.tail_fn_scroll(fn_src);
+      }
+      string tail_fn_seg(string fn_src, string seg_filename) {
+        return doc_tree.tail_fn_seg(fn_src, seg_filename);
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsEPUB() {
+  auto spinePathsEPUB()(
+    string output_pth_root,
+    string lng,
+  ) {
+    auto out_pth = spineOutPaths!()(output_pth_root, lng);
+    string base_dir = "epub";
+    struct _PathsStruct {
+      string internal_base() {
+        return (((out_pth.internal_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string base() {
+        return (((out_pth.output_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base_filename_epub(string fn_src) {
+        return base_filename(fn_src) ~ "." ~ lng;
+      }
+      string doc_meta_inf() {
+        return (("META-INF").asNormalizedPath).array;
+      }
+      string doc_oebps() {
+        return (("OEBPS").asNormalizedPath).array;
+      }
+      string doc_oebps_css() {
+        return ((doc_oebps.chainPath("Styles")).asNormalizedPath).array;
+      }
+      string doc_oebps_image() {
+        return ((doc_oebps.chainPath("image")).asNormalizedPath).array;
+      }
+      string epub_file(string fn_src) {
+        return ((base.chainPath(base_filename_epub(fn_src) ~ ".epub")).asNormalizedPath).array;
+      }
+      string dirtop() {
+        return "".chainPath("").array;
+      }
+      string fn_mimetypes() {
+        return ((dirtop.chainPath("mimetype")).asNormalizedPath).array;
+      }
+      string fn_dmi_container_xml() {
+        return ((doc_meta_inf.chainPath("container.xml")).asNormalizedPath).array;
+      }
+      string fn_oebps_toc_nav_xhtml() {
+        return ((doc_oebps.chainPath("toc_nav.xhtml")).asNormalizedPath).array;
+      }
+      string fn_oebps_toc_ncx() {
+        return ((doc_oebps.chainPath("toc.ncx")).asNormalizedPath).array;
+      }
+      string fn_oebps_content_opf() {
+        return ((doc_oebps.chainPath("content.opf")).asNormalizedPath).array;
+      }
+      string fn_oebps_content_xhtml(string seg_filename) {
+        return ((doc_oebps.chainPath(seg_filename ~ ".xhtml")).asNormalizedPath).array;
+      }
+      string fn_oebps_css() {
+        return ((doc_oebps_css.chainPath("epub.css")).asNormalizedPath).array;
+      }
+      /+ debug +/
+      string dbg_docdir(string fn_src) {
+        return base.chainPath(base_filename(fn_src)).array;
+      }
+      string dbg_docdir_oebps(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("OEBPS").array;
+      }
+      string dbg_doc_meta_inf(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("META-INF").array;
+      }
+      string dbg_doc_oebps(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("OEBPS").array;
+      }
+      string dbg_doc_oebps_css(string fn_src) {
+        return dbg_doc_oebps(fn_src).chainPath("Styles").array;
+      }
+      string dbg_doc_oebps_image(string fn_src) {
+        return dbg_doc_oebps(fn_src).chainPath("image").array;
+      }
+      string dbg_fn_mimetypes(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("mimetype").array;
+      }
+      string dbg_fn_dmi_container_xml(string fn_src) {
+        return dbg_doc_meta_inf(fn_src).chainPath("container.xml").array;
+      }
+      string dbg_fn_oebps_toc_nav_xhtml(string fn_src) {
+        return dbg_docdir_oebps(fn_src).chainPath("toc_nav.xhtml").array;
+      }
+      string dbg_fn_oebps_toc_ncx(string fn_src) {
+        return dbg_docdir_oebps(fn_src).chainPath("toc.ncx").array;
+      }
+      string dbg_fn_oebps_content_opf(string fn_src) {
+        return dbg_docdir_oebps(fn_src).chainPath("content.opf").array;
+      }
+      string dbg_fn_oebps_content_xhtml(string fn_src, string seg_filename) {
+        return dbg_docdir_oebps(fn_src).chainPath(seg_filename ~ ".xhtml").array;
+      }
+      string dbg_fn_oebps_css(string fn_src) {
+        return dbg_doc_oebps_css(fn_src).chainPath("epub.css").array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsODT() {
+  import std.conv;
+  auto spinePathsODT(M)(
+    M  doc_matters,
+  ) {
+    auto out_pth = spineOutPaths!()( doc_matters.output_path, doc_matters.src.language);
+    string base_dir = "odf";
+    struct _PathsStruct {
+      string base_pth() { // dir will contain odt document file (also debug file tree)
+        return (((out_pth.output_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string odt_file() {
+        return ((base_pth.chainPath(doc_matters.src.doc_uid_out ~ ".odt")).asNormalizedPath).array;
+      }
+      string dirtop(string type) {
+        return (type == "zip")
+        ? "" // ".chainPath("").array
+        : ((base_pth.chainPath(doc_matters.src.doc_uid_out)).asNormalizedPath).array.to!string;
+      }
+      string mimetype(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("mimetype")).asNormalizedPath).array;
+      }
+      string manifest_rdf(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("manifest.rdf")).asNormalizedPath).array;
+      }
+      string settings_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("settings.xml")).asNormalizedPath).array;
+      }
+      string styles_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("styles.xml")).asNormalizedPath).array;
+      }
+      string image_dir(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("Pictures")).asNormalizedPath).array;
+      }
+      string image(string image_fn_src, string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((image_dir(type).chainPath(image_fn_src)).asNormalizedPath).array;
+      }
+      string content_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("content.xml")).asNormalizedPath).array;
+      }
+      string meta_inf_dir(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("META-INF")).asNormalizedPath).array;
+      }
+      string manifest_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((meta_inf_dir(type).chainPath("manifest.xml")).asNormalizedPath).array;
+      }
+      string meta_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("meta.xml")).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsPDF() {
+  auto spinePathsPDF(M)(
+    M  doc_matters,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      auto out_pth() {
+        string output_dir = doc_matters.output_path ~ "/pdf";
+        return spineOutPaths!()(output_dir);
+      }
+      string base() {
+        return (((out_pth.output_root).chainPath("pdf")).asNormalizedPath).array;
+      }
+      string pdf_path_stuff() {
+        return ((base.chainPath(base_filename(doc_matters.src.filename))).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsLaTeX() {
+  auto spinePathsLaTeX(M)(
+    M  doc_matters,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      auto out_pth() {
+        return spineOutPaths!()(doc_matters.output_path, doc_matters.src.language);
+      }
+      string base() {
+        return (((out_pth.output_root).chainPath("latex")).asNormalizedPath).array;
+      }
+      string base_sty() {
+        return (((out_pth.output_root).chainPath("latex").chainPath("sty")).asNormalizedPath).array;
+      }
+      string latex_path_stuff() {
+        return ((base.chainPath(base_filename(doc_matters.src.filename))).asNormalizedPath).array;
+      }
+      string latex_file_with_path(string paper_size_orientation) {
+        return ((base.chainPath(base_filename(doc_matters.src.filename)
+             ~ "." ~ doc_matters.src.language
+             ~ "."  ~ paper_size_orientation
+             ~ ".tex")
+          ).asNormalizedPath).array;
+      }
+      string latex_sty_with_path(string paper_size_orientation) { // spineA4portrait.sty
+        return ((base_sty.chainPath("spine"
+             ~ paper_size_orientation
+             ~ ".sty")
+          ).asNormalizedPath).array;
+      }
+      string latex_sty_with_path_static() { // spineShared.sty
+        return ((base_sty.chainPath("spineShared.sty")).asNormalizedPath).array;
+      }
+      string images() {
+        string image_dir = "image";
+        return (((base).chainPath(image_dir)).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsLaTeXsty() {
+  auto spinePathsLaTeXsty(string output_dir) {
+    struct _PathsStruct {
+      auto out_pth() {
+        return spineOutPaths!()(output_dir);
+      }
+      string base() {
+        return (((out_pth.output_root).chainPath("latex")).asNormalizedPath).array;
+      }
+      string base_sty() {
+        return (((out_pth.output_root).chainPath("latex").chainPath("sty")).asNormalizedPath).array;
+      }
+      string latex_sty_with_path(string paper_size_orientation) { // spineA4portrait.sty
+        return ((base_sty.chainPath("spine"
+             ~ paper_size_orientation
+             ~ ".sty")
+          ).asNormalizedPath).array;
+      }
+      string latex_sty_with_path_static() { // spineShared.sty
+        return ((base_sty.chainPath("spineShared.sty")).asNormalizedPath).array;
+      }
+      string latex_document_header_sty(string filename) { // spineShared.sty
+        return ((base_sty.chainPath(filename)).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsSQLiteDiscrete() {
+  auto spinePathsSQLiteDiscrete()(
+    string output_pth_root,
+    string lng,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base() {
+        auto out_pth = spineOutPaths!()(output_pth_root, lng);
+        string base_dir = "sqlite";
+        return (((out_pth.output_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string seg(string fn_src) {
+        return ((base.chainPath(base_filename(fn_src))).asNormalizedPath).array;
+      }
+      string sqlite_file(string fn_src) {
+        return ((base.chainPath(base_filename(fn_src) ~ ".sql.db")).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsSQLite() {
+  auto spinePathsSQLite()(
+    string db_name,
+    string output_pth_root,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base() {
+        auto out_pth = spineOutPathSQLite!()(output_pth_root); // decide whether to have separate files for each language
+        string base_dir = "";
+        return (((out_pth.output_root).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string sqlite_file() {
+        return (base.chainPath(db_name).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
diff --git a/src/sisudoc/io_out/rgx.d b/src/sisudoc/io_out/rgx.d
new file mode 100644
index 0000000..474a120
--- /dev/null
+++ b/src/sisudoc/io_out/rgx.d
@@ -0,0 +1,157 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  regex: regular expressions used in sisu document parser
++/
+module sisudoc.io_out.rgx;
+@safe:
+static template spineRgxOut() {
+  static struct RgxO {
+    static make_breakpage                           = ctRegex!(`new=(?P<breakpage>.+?)(?:;|$)`);
+    static make_breakcolumn                         = ctRegex!(`break=(?P<breakcolumn>.+?)(?:;|$)`,);
+    static newline                                  = ctRegex!("\n", "mg");
+    static space                                    = ctRegex!(`[ ]`, "mg");
+    static spaces_keep                              = ctRegex!(`(?P<keep_spaces>^[ ]+|[ ]{2,})`, "mg"); // code, verse, block
+    static spaces_line_start                        = ctRegex!(`^(?P<opening_spaces>[ ]+)`, "mg");
+    static nbsp_char                                = ctRegex!(`░`, "mg");
+    static nbsp_chars                               = ctRegex!(`[░]+`, "mg");
+    static middle_dot                               = ctRegex!(`·`, "mg");
+    static src_pth_sst_or_ssm                       = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.](?P<extension>ss[tm]))$`);
+    static src_pth_pod_sst_or_ssm                   = ctRegex!(`^(?P<podpath>[/]?(?:[a-zA-Z0-9._-]+/)*)media/text/[a-z]{2}/(?P<filename>[a-zA-Z0-9][a-zA-Z0-9._-]*?[.]ss[tm])$`);
+    static src_pth_contents                         = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9][a-zA-Z0-9._-]*)/pod[.]manifest$`);
+    static src_pth_zip                              = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]zip)$`);
+    static src_pth_types                            = ctRegex!(`^(?P<path>[/]?[a-zA-Z0-9._-]+/)*(?P<gotfile>(?P<filename>[a-zA-Z0-9._-]+[.]ss[tm])|(?P<filelist>[a-zA-Z0-9._-]+/pod[.]manifest)|(?P<filezip>[a-zA-Z0-9._-]+[.]zip))$`);
+    static src_fn                                   = ctRegex!(`^([/]?(?:[a-zA-Z0-9._-]+/)*)(?P<fn_src>(?P<fn_base>[a-zA-Z0-9._-]+)[.](?P<fn_src_suffix>ss[tm]))$`);
+    static src_fn_master                            = ctRegex!(`^(?P<path>/?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]ssm)$`);
+    static src_fn_find_inserts                      = ctRegex!(`^(?P<path>/?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]ss[im])$`);
+    static insert_src_fn_ssi_or_sst                 = ctRegex!(`^<<\s*(?P<path>[a-zA-Z0-9._-]+/)*(?P<filename>[a-zA-Z0-9._-]+[.]ss[ti])$`);
+    static src_base_parent_dir_name                 = ctRegex!(`[/](?P<dir>(?:[a-zA-Z0-9._-]+))(?:/media/text/[a-z]{2})$`); // formalizes dir structure
+    static src_formalised_file_path_parts           = ctRegex!(`(?P<pth>(?:[/a-zA-Z0-9._-]+?)(?P<dir>[a-zA-Z0-9._-]+))(?:/media/text/[a-z]{2})$`); // formalizes dir structure
+    /+ line breaks +/
+    static br_empty_line                            = ctRegex!(`\n[ ]*\n`, "mg");
+    static br_linebreaks_newlines                   = ctRegex!(`[\n┘┙]`, "mg");
+    static br_linebreaks                            = ctRegex!(`[┘┙]`, "mg");
+    static br_line                                  = ctRegex!(`┘`, "mg");
+    static br_line_inline                           = ctRegex!(`┙`, "mg");
+    static br_line_spaced                           = ctRegex!(`┚`, "mg");
+    /+ quotation marks +/
+    static quotes_open_and_close                    = ctRegex!(`[“”]`, "mg");
+    /+ inline markup footnotes endnotes +/
+    static inline_notes_al                          = ctRegex!(`【(?:[*+]\s+|\s*)(.+?)】`, "mg");
+    static inline_notes_al_special                  = ctRegex!(`【(?:[*+]\s+)(.+?)】`, "mg"); // TODO remove match when special footnotes are implemented
+    static inline_notes_al_gen                      = ctRegex!(`【.+?】`, "m");
+    static inline_notes_al_gen_text                 = ctRegex!(`【(?P<text>.+?)】`, "m");
+    static inline_notes_al_all_note                 = ctRegex!(`【(?P<num>\d+|(?:[*]|[+])+)\s+(?P<note>.+?)\s*】`, "mg");
+    static inline_notes_al_regular_number_note      = ctRegex!(`【(?P<num>\d+)\s+(?P<note>.+?)\s*】`, "mg");
+    static inline_notes_al_special_char_note        = ctRegex!(`【(?P<char>(?:[*]|[+])+)\s+(?P<note>.+?)】`, "mg");
+    static inline_al_delimiter_open_regular         = ctRegex!(`【\s`, "m");
+    static inline_al_delimiter_open_symbol_star     = ctRegex!(`【[*]\s`, "m");
+    static inline_al_delimiter_open_symbol_plus     = ctRegex!(`【[+]\s`, "m");
+    static inline_text_and_note_al_                 = ctRegex!(`(.+?(?:【[*+]*\s+.+?】|.+))`, "mg");
+    /+ inline markup links +/
+    static inline_image                             = ctRegex!(`(?P<pre>┥)☼(?P<imginf>(?P<img>[a-zA-Z0-9._-]+?\.(?:jpg|gif|png)),w(?P<width>\d+)h(?P<height>\d+))\s*(?P<post>.*?┝┤.*?├)`, "mg");
+    static inline_image_without_dimensions          = ctRegex!(`(?P<pre>┥)☼(?P<imginf>(?P<img>[a-zA-Z0-9._-]+?\.(?:jpg|gif|png)),w(?P<width>0)h(?P<height>0))\s*(?P<post>.*?┝┤.*?├)`, "mg");
+    static inline_image_info                        = ctRegex!(`☼?(?P<img>[a-zA-Z0-9._-]+?\.(?:jpg|gif|png)),w(?P<width>\d+)h(?P<height>\d+)`, "mg");
+    static inline_link_anchor                       = ctRegex!(`┃(?P<anchor>\S+?)┃`, "mg"); // TODO *~text_link_anchor
+    static inline_link                              = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>#?(\S+?))├`, "mg");
+    static inline_link_empty                        = ctRegex!(`┥(?P<text>.+?)┝┤├`, "mg");
+    static inline_link_number                       = ctRegex!(`┥(?P<text>.+?)┝┤(?P<num>[0-9]+)├`, "mg"); // not used
+    static inline_link_number_only                  = ctRegex!(`(?P<linked_text>┥.+?┝)┤(?P<num>[0-9]+)├`, "mg");
+    static inline_link_stow_uri                     = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>[^ 0-9#┥┝┤├][^ 0-9┥┝┤├]+)├`, "mg"); // will not stow (stowed links) or object number internal links
+    static inline_link_hash                         = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>#(?P<hash>\S+?))├`, "mg");
+    static inline_link_seg_and_hash                 = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>(?P<seg>[^/#├]*)#(?P<hash>.+?))├`, "mg");
+    static inline_link_clean                        = ctRegex!(`┤(?:.+?)├|[┥┝]`, "mg");
+    static inline_link_toc_to_backmatter            = ctRegex!(`┤#(?P<link>endnotes|bibliography|bookindex|glossary|blurb)├`, "mg");
+    static url                                      = ctRegex!(`https?://`, "mg");
+    static uri                                      = ctRegex!(`(?:https?|git)://`, "mg");
+    static uri_identify_components                  = ctRegex!(`(?P<type>(?:https?|git)://)(?P<path>\S+?/)(?P<file>[^/]+)$`, "mg");
+    static inline_link_subtoc                       = ctRegex!(`^(?P<level>[5-7])~ ┥(?P<text>.+?)┝┤(?P<link>.+?)├`, "mg");
+    static inline_link_fn_suffix                    = ctRegex!(`¤(.+?)(\.fnSuffix)`, "mg");
+    static inline_seg_link                          = ctRegex!(`(¤)(?:.+?)\.fnSuffix`, "mg");
+    static mark_internal_site_lnk                   = ctRegex!(`¤`, "mg");
+    static quotation_mark_sql_insert_delimiter      = ctRegex!("[']", "mg");
+    /+ inline markup font face mod +/
+    static inline_emphasis                          = ctRegex!(`⑆[*]┨(?P<text>.+?)┣[*]`, "mg");
+    static inline_bold                              = ctRegex!(`⑆[!]┨(?P<text>.+?)┣[!]`, "mg");
+    static inline_underscore                        = ctRegex!(`⑆[_]┨(?P<text>.+?)┣[_]`, "mg");
+    static inline_italics                           = ctRegex!(`⑆[/]┨(?P<text>.+?)┣[/]`, "mg");
+    static inline_superscript                       = ctRegex!(`⑆\^┨(?P<text>.+?)┣\^`, "mg");
+    static inline_subscript                         = ctRegex!(`⑆[,]┨(?P<text>.+?)┣[,]`, "mg");
+    static inline_strike                            = ctRegex!(`⑆[-]┨(?P<text>.+?)┣[-]`, "mg");
+    static inline_insert                            = ctRegex!(`⑆[+]┨(?P<text>.+?)┣[+]`, "mg");
+    static inline_mono                              = ctRegex!(`⑆[■]┨(?P<text>.+?)┣[■]`, "mg");
+    static inline_cite                              = ctRegex!(`⑆[‖]┨(?P<text>.+?)┣[‖]`, "mg");
+    /+ table delimiters +/
+    static table_delimiter_col                      = ctRegex!("[ ]*[┊][ ]*", "mg");
+    static table_delimiter_row                      = ctRegex!("[ ]*\n", "mg");
+    /+ paragraph operators +/
+    static grouped_para_indent_1                    = ctRegex!(`^_1[ ]`, "m");
+    static grouped_para_indent_2                    = ctRegex!(`^_2[ ]`, "m");
+    static grouped_para_indent_3                    = ctRegex!(`^_3[ ]`, "m");
+    static grouped_para_indent_4                    = ctRegex!(`^_4[ ]`, "m");
+    static grouped_para_indent_5                    = ctRegex!(`^_5[ ]`, "m");
+    static grouped_para_indent_6                    = ctRegex!(`^_6[ ]`, "m");
+    static grouped_para_indent_7                    = ctRegex!(`^_7[ ]`, "m");
+    static grouped_para_indent_8                    = ctRegex!(`^_8[ ]`, "m");
+    static grouped_para_indent_9                    = ctRegex!(`^_9[ ]`, "m");
+    static grouped_para_bullet                      = ctRegex!(`^_[*] `, "m");
+    static grouped_para_bullet_indent_1             = ctRegex!(`^_1[*] `, "m");
+    static grouped_para_bullet_indent_2             = ctRegex!(`^_2[*] `, "m");
+    static grouped_para_bullet_indent_3             = ctRegex!(`^_3[*] `, "m");
+    static grouped_para_bullet_indent_4             = ctRegex!(`^_4[*] `, "m");
+    static grouped_para_bullet_indent_5             = ctRegex!(`^_5[*] `, "m");
+    static grouped_para_bullet_indent_6             = ctRegex!(`^_6[*] `, "m");
+    static grouped_para_bullet_indent_7             = ctRegex!(`^_7[*] `, "m");
+    static grouped_para_bullet_indent_8             = ctRegex!(`^_8[*] `, "m");
+    static grouped_para_bullet_indent_9             = ctRegex!(`^_9[*] `, "m");
+    static grouped_para_bullet_indent               = ctRegex!(`^_(?P<indent>[1-9])[*] `, "m");
+    static grouped_para_indent_hang                 = ctRegex!(`^_(?P<hang>[0-9])_(?P<indent>[0-9])[ ]`, "m");
+  }
+}
diff --git a/src/sisudoc/io_out/rgx_latex.d b/src/sisudoc/io_out/rgx_latex.d
new file mode 100644
index 0000000..826455c
--- /dev/null
+++ b/src/sisudoc/io_out/rgx_latex.d
@@ -0,0 +1,68 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  regex: regular expressions used in sisu document parser
++/
+module sisudoc.io_out.rgx_latex;
+@safe:
+static template spineRgxLSC() {
+  static struct RgxLSC {
+    static latex_special_char                       = ctRegex!(`([%${}_#&\\])`);
+    static latex_special_char_for_escape            = ctRegex!(`([%${}_#\\])`);
+    static latex_special_char_for_escape_and_braces = ctRegex!(`([&])`);
+    static latex_special_char_for_escape_url        = ctRegex!(`([%])`);
+    static latex_special_char_escaped               = ctRegex!(`\\([%${}_#\\])`);
+    static latex_special_char_escaped_braced        = ctRegex!(`[{]\\([&])[}]`);
+    static latex_identify_inline_link               = ctRegex!(`┥.+?┝┤\S+?├`, "mg");
+    static latex_identify_inline_fontface           = ctRegex!(`\\([_#$]┨.+?┣)\\([_#$])`, "mg");
+    static latex_clean_internal_link                = ctRegex!(`^(?:#|¤\S+?#)`, "m");
+    static latex_clean_bookindex_linebreak          = ctRegex!(`\s*\\\\\\\\\s*`, "m");
+  }
+}
diff --git a/src/sisudoc/io_out/rgx_xhtml.d b/src/sisudoc/io_out/rgx_xhtml.d
new file mode 100644
index 0000000..1c33b0e
--- /dev/null
+++ b/src/sisudoc/io_out/rgx_xhtml.d
@@ -0,0 +1,63 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  regex: regular expressions used in sisu document parser
++/
+module sisudoc.io_out.rgx_xhtml;
+@safe:
+static template spineRgxXHTML() {
+  static struct RgxXHTML {
+    static ampersand                                = ctRegex!(`[&]`, "m");      // &amp;
+    static quotation                                = ctRegex!(`["]`, "m");      // &quot;
+    static less_than                                = ctRegex!(`[<]`, "m");      // &lt;
+    static greater_than                             = ctRegex!(`[>]`, "m");      // &gt;
+    static line_break                               = ctRegex!(` [\\]{2}`, "m"); // <br />
+  }
+}
diff --git a/src/sisudoc/io_out/source_pod.d b/src/sisudoc/io_out/source_pod.d
new file mode 100644
index 0000000..97e31af
--- /dev/null
+++ b/src/sisudoc/io_out/source_pod.d
@@ -0,0 +1,424 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.source_pod;
+@system: // is not @safe: use: @system: or @trusted:
+template spinePod() {
+  import
+    sisudoc.meta.rgx_files,
+    sisudoc.io_out;
+  import
+    std.digest.sha,
+    std.file,
+    std.outbuffer,
+    std.zip,
+    std.conv : to;
+  import
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.xmls;
+  void spinePod(T)(T doc_matters) {
+    debug(asserts) {
+      // static assert(is(typeof(doc_matters) == tuple));
+    }
+    mixin spineRgxFiles;
+    string pwd = doc_matters.env.pwd;
+    auto src_path_info = doc_matters.src_path_info;
+    auto pth_dr_doc_src = doc_matters.src_path_info;
+    auto pths_pod = spinePathsPods!()(doc_matters);
+    mixin spineLanguageCodes;
+    auto lang = Lang();
+    static auto rgx_files = RgxFiles();
+    assert (doc_matters.src.filename.match(rgx_files.src_fn));
+    @system auto pod_archive(Z)(
+      string _source_type,
+      string _data_in,
+      string _pth_out,
+      Z zip
+    ) {
+      auto zip_arc_member_file = new ArchiveMember();
+      zip_arc_member_file.name = _pth_out;
+      auto zip_data = new OutBuffer();
+      switch (_source_type) {
+      case "file_path_bin":
+        zip_data.write(cast(char[]) ((_data_in).read));
+        goto default;
+      case "file_path_text":
+        zip_data.write((_data_in).readText);
+        goto default;
+      case "string":
+        zip_data.write(_data_in);
+        goto default;
+      default:
+        zip_arc_member_file.expandedData = zip_data.toBytes();
+        zip.addMember(zip_arc_member_file);
+      }
+      return zip;
+    }
+    try {
+      /+ create directory structure +/
+      if (!exists(pths_pod.pod_dir_())) {
+        // used both by pod zipped (& pod filesystem (unzipped) which makes its own recursive dirs)
+        pths_pod.pod_dir_().mkdirRecurse;
+      }
+      if (doc_matters.opt.action.source_or_pod) {
+        if (doc_matters.opt.action.vox_gt0) {
+          writeln(" ", pths_pod.fn_pod_filelist(doc_matters.src.filename).filesystem_open_zpod);
+        }
+        if (!exists(pths_pod.text_root(doc_matters.src.filename).filesystem_open_zpod)) {
+          pths_pod.text_root(doc_matters.src.filename).filesystem_open_zpod.mkdirRecurse;
+        }
+        if (!exists(pths_pod.conf_root(doc_matters.src.filename).filesystem_open_zpod)) {
+          pths_pod.conf_root(doc_matters.src.filename).filesystem_open_zpod.mkdirRecurse;
+        }
+        if (!exists(pths_pod.media_root(doc_matters.src.filename).filesystem_open_zpod)) {
+          pths_pod.media_root(doc_matters.src.filename).filesystem_open_zpod.mkdirRecurse;
+        }
+        if (!exists(pths_pod.css(doc_matters.src.filename).filesystem_open_zpod)) {
+          pths_pod.css(doc_matters.src.filename).filesystem_open_zpod.mkdirRecurse;
+        }
+        if (!exists(pths_pod.image_root(doc_matters.src.filename).filesystem_open_zpod)) {
+          pths_pod.image_root(doc_matters.src.filename).filesystem_open_zpod.mkdirRecurse;
+        }
+        if (!exists(pths_pod.doc_lng(doc_matters.src.filename, doc_matters.src.language).filesystem_open_zpod)) {
+          pths_pod.doc_lng(doc_matters.src.filename, doc_matters.src.language).filesystem_open_zpod.mkdirRecurse;
+        }
+      }
+      if (!exists(pths_pod.pod_dir_() ~ "/index.html")) {
+        import sisudoc.io_out.html_snippet;
+        mixin htmlSnippet;
+        auto f = File(pths_pod.pod_dir_() ~"/index.html", "w");
+        f.writeln(format_html_blank_page_guide_home(
+          "../../css/html_scroll.css",
+          (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+            ? doc_matters.opt.action.webserver_url_doc_root
+            : doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+          "../../index.html",
+        ));
+      }
+      if (doc_matters.opt.action.debug_do_pod
+      && doc_matters.opt.action.vox_gt1) {
+        writeln(__LINE__, ": ",
+          doc_matters.src.filename, " -> ",
+          pths_pod.fn_doc(doc_matters.src.filename, doc_matters.src.language).filesystem_open_zpod
+        );
+      }
+      auto zip = new ZipArchive();
+      auto fn_pod = pths_pod.pod_filename(doc_matters.src.filename).zpod;
+      { /+ bundle images +/
+        foreach (image; doc_matters.srcs.image_list) {
+          debug(podimages) {
+            writeln(
+              pth_dr_doc_src.image_root.to!string, "/", image, " -> ",
+              pths_pod.image_root(doc_matters.src.filename).zpod, "/", image
+            );
+          }
+          auto fn_src_in = doc_matters.src.image_dir_path ~ "/" ~ image;
+          auto fn_src_out_pod_zip_base
+            = pths_pod.image_root(doc_matters.src.filename).zpod.to!string
+            ~ "/" ~ image;
+          auto fn_src_out_filesystem
+            = pths_pod.image_root(doc_matters.src.filename).filesystem_open_zpod.to!string
+            ~ "/" ~ image;
+          if (exists(fn_src_in)) {
+            debug(io) {
+              writeln("(io debug) src out found: ", fn_src_in);
+            }
+            if (doc_matters.opt.action.source_or_pod) {
+              fn_src_in.copy(fn_src_out_filesystem);
+            }
+            if (doc_matters.opt.action.pod) {
+              zip = pod_archive("file_path_bin", fn_src_in, fn_src_out_pod_zip_base, zip);
+            }
+          } else {
+            if (doc_matters.opt.action.debug_do_pod
+            && doc_matters.opt.action.vox_gt1) {
+              writeln("WARNING (io) src out NOT found (image): ", fn_src_in);
+            }
+          }
+        }
+      } { /+ bundle dr_document_make +/
+        auto fn_src_in = ((doc_matters.src.is_pod)
+          ? doc_matters.src.conf_dir_path
+          : pth_dr_doc_src.conf_root).to!string
+          ~ "/" ~ "dr_document_make";
+        auto fn_src_out_pod_zip_base
+          = pths_pod.conf_root(doc_matters.src.filename).zpod.to!string ~ "/" ~ "dr_document_make";
+        auto fn_src_out_filesystem
+          = pths_pod.conf_root(doc_matters.src.filename).filesystem_open_zpod.to!string
+          ~ "/" ~ "dr_document_make";
+        if (exists(fn_src_in)) {
+          debug(io) {
+            writeln("(io debug) src out found: ", fn_src_in);
+          }
+          if (doc_matters.opt.action.source_or_pod) {
+            fn_src_in.copy(fn_src_out_filesystem);
+          }
+          if (doc_matters.opt.action.pod) {
+            zip = pod_archive("file_path_text", fn_src_in, fn_src_out_pod_zip_base, zip);
+          }
+        } else {
+          if (doc_matters.opt.action.debug_do_pod
+          && doc_matters.opt.action.vox_gt1) {
+            writeln("WARNING (io) src out NOT found (document make): ", fn_src_in);
+          }
+        }
+      } { /+ pod manifest +/
+        auto fn_src_in = doc_matters.src.file_with_absolute_path.to!string;
+        auto fn_src_out_pod_zip_base
+          = pths_pod.pod_manifest(doc_matters.src.filename).zpod.to!string;
+        auto fn_src_out_filesystem
+          = pths_pod.pod_manifest(doc_matters.src.filename).filesystem_open_zpod.to!string; // needed without root path
+        auto fn_src_out_inside_pod
+          = pths_pod.pod_manifest(doc_matters.src.filename).zpod.to!string; // needed without root path
+        string[] filelist_src_out_pod_arr;
+        string[] filelist_src_zpod_arr;
+        if (exists(fn_src_in)) {
+          debug(io) {
+            writeln("(io debug) src in found: ", fn_src_in);
+          }
+          filelist_src_out_pod_arr ~= fn_src_out_pod_zip_base;
+          filelist_src_zpod_arr ~= fn_src_out_inside_pod;
+          {
+            import dyaml;
+            auto pod_filelist_yaml_string
+              = File(pths_pod.fn_pod_filelist(doc_matters.src.filename).filesystem_open_zpod, "w");
+            Node _pmy;
+            string _pm = "doc:\n  filename: " ~ doc_matters.src.filename ~ "\n  language: " ~ doc_matters.pod.manifest_list_of_languages.to!string ~ "\n";
+            if (doc_matters.opt.action.debug_do_pod
+            && doc_matters.opt.action.vox_gt1) {
+              try {
+                _pmy = Loader.fromString(_pm).load();
+              } catch (ErrnoException ex) {
+              } catch (Throwable) {
+                writeln("ERROR failed to read config file content, not parsed as yaml");
+              }
+              writeln("pod filename:  ", _pmy["doc"]["filename"].get!string);
+              writeln("pod languages: ", doc_matters.pod.manifest_list_of_languages.to!string);
+              writeln("pod languages: ", doc_matters.src.language);
+              // foreach(string _l; _pmy["doc"]["language"]) {
+              //   writeln("language:      ", _l);
+              // }
+            }
+            if (doc_matters.opt.action.source_or_pod) {
+              pod_filelist_yaml_string.writeln(_pm);
+            }
+            if (doc_matters.opt.action.pod) {
+              zip = pod_archive("string", _pm, fn_src_out_pod_zip_base, zip);
+            }
+          }
+        }
+      } { /+ bundle primary file (.ssm/.sst) +/
+        auto fn_src_in = doc_matters.src.file_with_absolute_path.to!string;
+        auto fn_src_out_pod_zip_base
+          = pths_pod.fn_doc(doc_matters.src.filename, doc_matters.src.language).zpod.to!string;
+        auto fn_src_out_filesystem
+          = pths_pod.fn_doc(doc_matters.src.filename, doc_matters.src.language).filesystem_open_zpod.to!string; // needed without root path:
+        auto fn_src_out_inside_pod
+          = pths_pod.fn_doc(doc_matters.src.filename, doc_matters.src.language).zpod.to!string; // needed without root path:
+        string[] filelist_src_out_pod_arr;
+        string[] filelist_src_zpod_arr;
+        if (exists(fn_src_in)) {
+          debug(io) {
+            writeln("(io debug) src in found: ", fn_src_in);
+          }
+          filelist_src_out_pod_arr ~= fn_src_out_pod_zip_base;
+          filelist_src_zpod_arr ~= fn_src_out_inside_pod;
+          string _pod_to_markup_file = doc_matters.src.pod_name ~ "/" ~ "media/text/" ~ doc_matters.src.language ~ "/" ~ doc_matters.src.filename;
+          if (doc_matters.opt.action.source_or_pod) {
+            fn_src_in.copy(fn_src_out_filesystem);
+          }
+          if (doc_matters.opt.action.pod) {
+            auto _rgx = regex(r"(?P<path_to_pod>\S+?)(?P<podname>[a-z_-]+)/(?P<from_root>media/text/)(?P<language>\S+?)/(?P<filename>\S+?\.ss[mt])");
+            if (auto _x = fn_src_in.match(_rgx)){
+              if (doc_matters.src.lng == doc_matters.pod.manifest_list_of_languages[$-1]) {
+                string _path_to_pod = _x.captures["path_to_pod"];
+                string _podname = _x.captures["podname"];
+                string _root_to_lang = _x.captures["from_root"];
+                string _language = _x.captures["language"];
+                string _filename = _x.captures["filename"];
+                foreach (_lang; doc_matters.pod.manifest_list_of_languages) {
+                  string _pth_mkup_src_in = _path_to_pod ~ _podname ~ "/" ~ _root_to_lang ~ _lang ~ "/" ~ _filename;
+                  string _pth_mkup_src_out = "pod/" ~ _root_to_lang ~ _lang ~ "/" ~ _filename;
+                  zip = pod_archive("file_path_text", _pth_mkup_src_in, _pth_mkup_src_out, zip);
+                }
+              }
+            } else {
+              zip = pod_archive("file_path_text", fn_src_in, fn_src_out_pod_zip_base, zip);
+            }
+          }
+        } else {
+          if (doc_matters.opt.action.debug_do_pod
+          && doc_matters.opt.action.vox_gt1) {
+            writeln("WARNING (io) src in NOT found (markup source): ", fn_src_in);
+          }
+        }
+      } { /+ bundle insert files (.ssi) +/
+        if (doc_matters.srcs.file_insert_list.length > 0) {
+          auto _rgx = regex(r"(?P<path_to_pod>\S+?)(?P<podname>[a-z_-]+)/(?P<from_root>media/text/)(?P<language>\S+?)/(?P<filename>\S+?\.ss[i])");
+          foreach (insert_file; doc_matters.srcs.file_insert_list) {
+            debug(pod) {
+              writeln(
+                insert_file, " -> ",
+                pths_pod.fn_doc_insert(
+                  doc_matters.src.filename,
+                  insert_file,
+                  doc_matters.src.language,
+                ).zpod
+              );
+            }
+            if (auto _x = insert_file.match(_rgx)){
+              if (doc_matters.src.lng == doc_matters.pod.manifest_list_of_languages[$-1]) {
+                string _path_to_pod = _x.captures["path_to_pod"];
+                string _podname = _x.captures["podname"];
+                string _root_to_lang = _x.captures["from_root"];
+                string _language = _x.captures["language"];
+                string _filename = _x.captures["filename"];
+                foreach (_lang; doc_matters.pod.manifest_list_of_languages) {
+                  string _pth_mkup_src_in = _path_to_pod ~ _podname ~ "/" ~ _root_to_lang ~ _lang ~ "/" ~ _filename;
+                  string _pth_mkup_src_out = "pod/" ~ _root_to_lang ~ _lang ~ "/" ~ _filename;
+                  if (exists(_pth_mkup_src_in)) {
+                    if (doc_matters.opt.action.source_or_pod) {
+                      auto fn_src_out_filesystem // you need to change language sources
+                        = pths_pod.fn_doc_insert(
+                          doc_matters.src.filename, // doc_matters.src.filename
+                          _pth_mkup_src_in, // insert_file
+                          _lang,
+                        ).filesystem_open_zpod.to!string;
+                      _pth_mkup_src_in.copy(fn_src_out_filesystem); // check why here, thought dealt with elsewhere
+                    }
+                    if (doc_matters.opt.action.pod) {
+                       zip = pod_archive("file_path_text", _pth_mkup_src_in, _pth_mkup_src_out, zip);
+                    }
+                  } else {
+                    if (doc_matters.opt.action.debug_do_pod
+                    && doc_matters.opt.action.vox_gt1) {
+                      writeln("WARNING (io) src out NOT found (insert file): ", _pth_mkup_src_in);
+                    }
+                  }
+                }
+              }
+            } else {
+              auto fn_src_in = insert_file;
+              auto fn_src_out_pod_zip_base
+                = pths_pod.fn_doc_insert(
+                  doc_matters.src.filename,
+                  insert_file,
+                  doc_matters.src.language,
+                ).zpod.to!string;
+              auto fn_src_out_filesystem
+                = pths_pod.fn_doc_insert(
+                  doc_matters.src.filename,
+                  insert_file,
+                  doc_matters.src.language,
+                ).filesystem_open_zpod.to!string;
+              if (exists(fn_src_in)) {
+                debug(io) {
+                  writeln("(io debug) src out found: ", fn_src_in);
+                }
+                if (doc_matters.opt.action.source_or_pod) {
+                  fn_src_in.copy(fn_src_out_filesystem);
+                }
+                if (doc_matters.opt.action.pod) {
+                  zip = pod_archive("file_path_text", fn_src_in, fn_src_out_pod_zip_base, zip);
+                }
+              } else {
+                if (doc_matters.opt.action.debug_do_pod
+                && doc_matters.opt.action.vox_gt1) {
+                  writeln("WARNING (io) src out NOT found (insert file): ", fn_src_in);
+                }
+              }
+            }
+          }
+        }
+      } {
+        auto fn_src_in = doc_matters.src.filename;
+        if (doc_matters.opt.action.pod) {
+          if (exists(doc_matters.src.file_with_absolute_path)) {
+            createZipFile!()(fn_pod, zip.build());
+          } else {
+            writeln("WARNING check missing source file(s): ", doc_matters.opt.action.pod);
+          }
+          if (!(exists(fn_pod))) {
+            writeln("WARNING failed to create pod zip archive: ", fn_pod);
+          }
+        }
+      }
+      if (exists(fn_pod)) {
+        try {
+          if (doc_matters.opt.action.vox_gt0
+          && doc_matters.opt.action.pod) {
+            auto data = (cast(byte[]) (fn_pod).read);
+            if (doc_matters.opt.action.vox_gt1) {
+              writeln(" ", doc_matters.src.filename, " > ");
+            }
+            if (doc_matters.opt.action.pod) {
+              writefln("%s\n. %-(%02x%)::%s . %s.zip", fn_pod, data.sha256Of, data.length, doc_matters.src.filename_base);
+            }
+          }
+          if (doc_matters.opt.action.debug_do_pod) {
+            try {
+              auto zipped = new ZipArchive((fn_pod).read);
+              foreach (filename, member; zipped.directory) {
+                auto data = zipped.expand(member);
+                writeln(". ", ((data).sha256Of).toHexString, "::", data.length, " . ", filename);
+              }
+            } catch (ZipException ex) {
+              // Handle errors
+            }
+          }
+        } catch (ErrnoException ex) {
+          // Handle errors
+        }
+      }
+      // source pod zip
+    } catch (ErrnoException ex) {
+      // Handle error
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/sqlite.d b/src/sisudoc/io_out/sqlite.d
new file mode 100644
index 0000000..bee9cad
--- /dev/null
+++ b/src/sisudoc/io_out/sqlite.d
@@ -0,0 +1,1761 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.sqlite;
+import
+  sisudoc.io_out,
+  sisudoc.io_out.rgx,
+  sisudoc.io_out.rgx_xhtml;
+import
+  std.file,
+  std.uri;
+import std.conv : to;
+import std.typecons : Nullable;
+import d2sqlite3;
+mixin spineRgxOut;
+mixin spineRgxXHTML;
+mixin InternalMarkup;
+static auto rgx = RgxO();
+static auto rgx_xhtml = RgxXHTML();
+static auto mkup = InlineMarkup();
+long _metadata_tid_lastrowid;
+template SQLiteHubBuildTablesAndPopulate() {
+  void SQLiteHubBuildTablesAndPopulate(D,M)(
+    const D  doc_abstraction,
+          M  doc_matters,
+  ) {
+    auto pth_sqlite = spinePathsSQLite!()(doc_matters.sqlite.filename, doc_matters.sqlite.path);
+    if ((isValidPath(pth_sqlite.base) && exists(pth_sqlite.base) != 0 && pth_sqlite.base.isDir)) {
+    } else {
+      try {
+        pth_sqlite.base.mkdirRecurse;
+      } catch (FileException ex) { }
+    }
+    template SQLiteDbStatementComposite() {
+      void SQLiteDbStatementComposite(Db,D,M)(
+              Db   db,
+        const D    doc_abstraction,
+              M    doc_matters,
+      ) {
+        string _db_statement;
+        if ((doc_matters.opt.action.sqlite_db_create)) {
+          auto pth_sqlite = spinePathsSQLite!()(doc_matters.sqlite.filename, doc_matters.sqlite.path);
+          if ((isValidPath(pth_sqlite.base) && exists(pth_sqlite.base) != 0 && pth_sqlite.base.isDir)) {
+          } else {
+            try {
+              pth_sqlite.base.mkdirRecurse;
+            } catch (FileException ex) { }
+          }
+          _db_statement ~= SQLiteTablesReCreate!()();
+          SQLiteDbRun!()(db, _db_statement, doc_matters.opt.action, "TABLE RE-CREATE");
+          _db_statement = [];
+        }
+        if (doc_matters.opt.action.sqlite_delete) {
+          _db_statement ~= SQLiteDeleteDocument!()(doc_matters);
+          SQLiteDbRun!()(db, _db_statement, doc_matters.opt.action, "DELETE Document");
+          _db_statement = [];
+        }
+        if (doc_matters.opt.action.sqlite_update) {
+          _db_statement ~= SQLiteDeleteDocument!()(doc_matters);
+          SQLiteDbRun!()(db, _db_statement, doc_matters.opt.action, "DELETE Document");
+          _db_statement = [];
+          _db_statement ~= SQLiteInsertMetadata!()(doc_matters);
+          SQLiteDbRun!()(db, _db_statement, doc_matters.opt.action, "INSERT MetaData");
+          _db_statement = [];
+          /+ get tid (lastrowid or max) for use in doc_objects table +/
+          _db_statement ~= doc_abstraction.SQLiteInsertDocObjectsLoop!()(doc_matters);
+          SQLiteDbRun!()(db, _db_statement, doc_matters.opt.action, "INSERT DocObjects");
+          _db_statement = [];
+         _db_statement ~= SQLiteInsertMetadataTopics!()(doc_matters);
+          SQLiteDbRun!()(db, _db_statement, doc_matters.opt.action, "INSERT MetaDataTopics");
+          _db_statement = [];
+        }
+        db.close;
+        if (doc_matters.opt.action.vox_gt0) {
+          writeln(" ", pth_sqlite.sqlite_file);
+        }
+      }
+    }
+    try {
+      auto db = Database(pth_sqlite.sqlite_file);
+      SQLiteDbStatementComposite!()(db, doc_abstraction, doc_matters);
+    }
+    catch (FileException e) {
+      writeln("Failed (FileException): ", e.msg, " ", pth_sqlite.sqlite_file);
+      writeln(e.file, " line: ", e.line);
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+    catch (ErrnoException e) {
+      writeln("Failed (ErrnoException): ", e.msg, " ", pth_sqlite.sqlite_file);
+      writeln(e.file, " line: ", e.line);
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+    catch (Exception e) {
+      writeln("Failed (Exception): ", e.msg, " ", pth_sqlite.sqlite_file);
+      writeln(e.file, " line: ", e.line);
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+    catch (Throwable) {
+      writeln("Failed (Trowable): ", pth_sqlite.sqlite_file);
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+  }
+}
+template SQLiteHubDiscreteBuildTablesAndPopulate() {
+  void SQLiteHubDiscreteBuildTablesAndPopulate(D,M)(
+    const D    doc_abstraction,
+          M    doc_matters,
+  ) {
+    auto url_html = spineUrlsHTML!()(doc_matters.conf_make_meta.conf.w_srv_data_root_url_html, doc_matters.src.language);
+    auto pth_sqlite = spinePathsSQLiteDiscrete!()(doc_matters.output_path, doc_matters.src.language); // doc_matters.db_path
+    if ((isValidPath(pth_sqlite.base) && exists(pth_sqlite.base) != 0 && pth_sqlite.base.isDir)) {
+    } else {
+      try {
+        pth_sqlite.base.mkdirRecurse;
+      } catch (FileException ex) { }
+    }
+    auto db = Database(pth_sqlite.sqlite_file(doc_matters.src.filename));
+    template SQLiteDiscreteDbStatementComposite() {
+      void SQLiteDiscreteDbStatementComposite(Db,D,M)(
+              Db   db,
+        const D    doc_abstraction,
+              M    doc_matters,
+      ) {
+        try {
+          {
+            string _db_statement;
+            _db_statement ~= SQLiteTablesReCreate!()();
+            _db_statement ~= SQLiteInsertMetadata!()(doc_matters);
+            _db_statement ~= SQLiteInsertMetadataTopics!()(doc_matters);
+            _db_statement ~= doc_abstraction.SQLiteInsertDocObjectsLoop!()(doc_matters);
+            SQLiteDbRun!()(db, _db_statement, doc_matters.opt.action, "table CREATE Tables, INSERT DocObjects");
+          }
+          db.close;
+        }
+        catch (FileException e) {
+          writeln("Failed (FileException): ", e.msg);
+          writeln(e.file, " line: ", e.line);
+          import core.runtime;
+          core.runtime.Runtime.terminate();
+        }
+        catch (ErrnoException e) {
+          writeln("Failed (ErrnoException): ", e.msg);
+          writeln(e.file, " line: ", e.line);
+          import core.runtime;
+          core.runtime.Runtime.terminate();
+        }
+        catch (Exception e) {
+          writeln("Failed (Exception): ", e.msg);
+          writeln(e.file, " line: ", e.line);
+          import core.runtime;
+          core.runtime.Runtime.terminate();
+        }
+        catch (Throwable) {
+          import core.runtime;
+          core.runtime.Runtime.terminate();
+        }
+        if (doc_matters.opt.action.vox_gt0) {
+          writeln(" ", pth_sqlite.sqlite_file(doc_matters.src.filename));
+        }
+      }
+    }
+    SQLiteDiscreteDbStatementComposite!()(db, doc_abstraction, doc_matters);
+  }
+}
+template SQLiteDbRun() {
+  void SQLiteDbRun(Db,St,O)(
+    Db       db,
+    St       db_statement,
+    O        opt_action,
+    string   note,
+  ) {
+    debug(sql_statement) {
+      writeln(db_statement);
+    }
+    try {
+      db.run(
+        "\nBEGIN TRANSACTION;\n" ~
+        db_statement ~
+        "\nCOMMIT TRANSACTION;\n"
+      );
+    } catch (ErrnoException ex) {
+      writeln("ERROR SQLite : ", ex);
+    } catch (Exception ex) {
+      writeln("ERROR SQLite : ", ex);
+    }
+    { /+ debug +/
+      if (opt_action.debug_do_sqlite) {
+        writeln(note);
+        if (opt_action.vox_gt2) {
+          writeln(db_statement);
+        }
+      }
+    }
+  }
+}
+template SQLinsertDelimiter() {
+  string SQLinsertDelimiter(string _txt) {
+    _txt = _txt
+      .replaceAll(rgx.quotation_mark_sql_insert_delimiter, "$0$0");
+    return _txt;
+  }
+}
+template SQLiteFormatAndLoadObject() {
+  auto SQLiteFormatAndLoadObject(M)(
+    M    doc_matters,
+  ) {
+    mixin spineRgxOut;
+    mixin spineRgxXHTML;
+    struct sqlite_format_and_load_objects {
+      string generic_munge_sanitize_text_for_search(
+        string _txt,
+      ) {
+        string _notes;
+        string _urls;
+        if (_txt.matchFirst(rgx.inline_notes_al_gen)) {
+          foreach (m; _txt.matchAll(rgx.inline_notes_al_gen_text)) {
+            _notes ~= "\n" ~ m["text"];
+          }
+          _txt = _txt.replaceAll(rgx.inline_notes_al_gen, "");
+        }
+        if (_txt.matchFirst(rgx.inline_link)) {
+          foreach (m; _txt.matchAll(rgx.inline_link)) {
+            if (m["link"].match(rgx.url)) {
+              _urls ~= "\n" ~ m["link"];
+            }
+          }
+          _txt = _txt.replaceAll(rgx.inline_link_clean, "");
+        }
+        if (_notes.length > 0) {
+          _txt ~= _notes;
+        }
+        if (_urls.length > 0) {
+          _txt ~= _urls;
+        }
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            writeln(_txt, "\n");
+          }
+        }
+        debug(sql_text_clean) {
+          writeln(_txt);
+        }
+        return _txt;
+      }
+      string munge_html(M,O)(
+              M    doc_matters,
+        const O    obj,
+      ) {
+        string _html_special_characters(string _txt){
+          _txt = _txt
+            .replaceAll(rgx_xhtml.ampersand,    "&#38;")
+            .replaceAll(rgx_xhtml.quotation,    "&#34;")
+            .replaceAll(rgx_xhtml.less_than,    "&#60;")
+            .replaceAll(rgx_xhtml.greater_than, "&#62;")
+            .replaceAll(rgx.nbsp_char,          " ")
+            .replaceAll(rgx.br_line_inline,     "<br />")
+            .replaceAll(rgx.br_line,            "<br />")
+            .replaceAll(rgx.br_line_spaced,     "<br /><br />")
+            .replaceAll(rgx_xhtml.line_break,   "<br />");
+          return _txt;
+        }
+        string _html_font_face(string _txt){
+          _txt = _txt
+            .replaceAll(rgx.inline_emphasis,    "<em>$1</em>")
+            .replaceAll(rgx.inline_bold,        "<b>$1</b>")
+            .replaceAll(rgx.inline_underscore,  "<u>$1</u>")
+            .replaceAll(rgx.inline_italics,     "<i>$1</i>")
+            .replaceAll(rgx.inline_superscript, "<sup>$1</sup>")
+            .replaceAll(rgx.inline_subscript,   "<sub>$1</sub>")
+            .replaceAll(rgx.inline_strike,      "<del>$1</del>")
+            .replaceAll(rgx.inline_insert,      "<ins>$1</ins>")
+            .replaceAll(rgx.inline_mono,        "<tt>$1</tt>")
+            .replaceAll(rgx.inline_cite,        "<cite>$1</cite>");
+          return _txt;
+        }
+        string _notes;
+        string _urls;
+        string _txt = _html_font_face(_html_special_characters(obj.text));
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            writeln(_txt, "\n");
+          }
+        }
+        return _txt;
+      }
+      string html_special_characters(string _txt){
+        _txt = _txt
+          .replaceAll(rgx_xhtml.ampersand,    "&#38;")
+          .replaceAll(rgx_xhtml.quotation,    "&#34;")
+          .replaceAll(rgx_xhtml.less_than,    "&#60;")
+          .replaceAll(rgx_xhtml.greater_than, "&#62;")
+          .replaceAll(rgx.nbsp_char,          " ")
+          .replaceAll(rgx.br_line_inline,     "<br />")
+          .replaceAll(rgx.br_line,            "<br />")
+          .replaceAll(rgx.br_line_spaced,     "<br /><br />")
+          .replaceAll(rgx_xhtml.line_break,   "<br />");
+        return _txt;
+      }
+      string html_special_characters_code(string _txt){
+        _txt = _txt
+          .replaceAll(rgx_xhtml.ampersand,    "&#38;")
+          .replaceAll(rgx_xhtml.quotation,    "&#34;")
+          .replaceAll(rgx_xhtml.less_than,    "&#60;")
+          .replaceAll(rgx_xhtml.greater_than, "&#62;")
+          .replaceAll(rgx.nbsp_char,          " ");
+        return _txt;
+      }
+      string html_font_face(string _txt){
+        _txt = _txt
+          .replaceAll(rgx.inline_emphasis,    "<em>$1</em>")
+          .replaceAll(rgx.inline_bold,        "<b>$1</b>")
+          .replaceAll(rgx.inline_underscore,  "<u>$1</u>")
+          .replaceAll(rgx.inline_italics,     "<i>$1</i>")
+          .replaceAll(rgx.inline_superscript, "<sup>$1</sup>")
+          .replaceAll(rgx.inline_subscript,   "<sub>$1</sub>")
+          .replaceAll(rgx.inline_strike,      "<del>$1</del>")
+          .replaceAll(rgx.inline_insert,      "<ins>$1</ins>")
+          .replaceAll(rgx.inline_mono,        "<tt>$1</tt>")
+          .replaceAll(rgx.inline_cite,        "<cite>$1</cite>");
+        return _txt;
+      }
+      string inline_grouped_text_bullets_indents(M,O)(
+                     M  doc_matters,
+        const        O  obj,
+        string          _txt,
+        string          _suffix   = ".html",
+        string          _xml_type = "seg",
+      ) {
+        static auto rgx = RgxO();
+        static auto rgx_xhtml = RgxXHTML();
+        if (obj.metainfo.is_a == "group") {
+          _txt = (_txt)
+            .replaceAll(rgx.grouped_para_indent_1,
+              "&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_2,
+              "&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_3,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_4,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_5,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_6,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_7,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_8,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_9,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_indent_hang,      "&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet,           "●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_1,
+              "&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_2,
+              "&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_3,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_4,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_5,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_6,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_7,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_8,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+            .replaceAll(rgx.grouped_para_bullet_indent_9,
+              "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;");
+        }
+        return _txt;
+      }
+      string inline_images(M,O)(
+                     M  doc_matters,
+        const        O  obj,
+        string          _txt,
+        string          _suffix   = ".html",
+        string          _xml_type = "seg",
+      ) {
+        string _img_pth;
+        if (_xml_type == "epub") {
+          _img_pth = "image/";
+        } else if (_xml_type == "scroll") {
+          _img_pth = "../../image/";
+        } else if (_xml_type == "seg") {
+          _img_pth = "../../../image/";
+        }
+        if (_txt.match(rgx.inline_image)) {
+          _txt = _txt.replaceAll( // TODO bug where image dimensions (w or h) not given & consequently set to 0; should not be used (calculate earlier, abstraction)
+              rgx.inline_image,
+              ("$1<img src=\""
+                ~ _img_pth
+                ~ "$3\" width=\"$4\" height=\"$5\" naturalsizeflag=\"0\" align=\"bottom\" border=\"0\" /> $6"));
+        }
+        return _txt;
+      }
+      string inline_links(M,O)(
+                     M doc_matters,
+        const        O obj,
+        string         _txt,
+        string         _xml_type = "seg",
+      ) {
+        if (obj.has.inline_links) {
+          if  (obj.metainfo.is_a != "code") {
+            _txt = replaceAll!(m =>
+                m["linked_text"] ~ "┤" ~ to!string((obj.stow.link[m["num"].to!ulong])).encode ~ "├"
+              )(_txt, rgx.inline_link_number_only);
+          }
+          if ((_txt.match(rgx.mark_internal_site_lnk))
+          && (_xml_type == "scroll")) { // conditions reversed to avoid: gdc compiled program run segfault
+            _txt = _txt.replaceAll(
+              rgx.inline_seg_link,
+              "$1");
+          }
+          auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+          if (_xml_type == "seg") {
+            foreach (m; _txt.matchAll(rgx.inline_link_seg_and_hash)) {
+              if (m.captures["hash"] in doc_matters.has.tag_associations) {
+                if (m.captures["hash"] == doc_matters.has.tag_associations[(m.captures["hash"])]["seg_lv4"]) {
+                  _txt = _txt.replaceFirst(
+                    rgx.inline_link_seg_and_hash,
+                    "┥$1┝┤"
+                      ~ doc_matters.conf_make_meta.conf.w_srv_data_root_url_html
+                      ~ "/"
+                      ~ pth_html.tail_fn_seg(doc_matters.src.filename, "$2.html")
+                    ~ "├"
+                  );
+                } else {
+                  _txt = _txt.replaceFirst(
+                    rgx.inline_link_seg_and_hash,
+                    "┥$1┝┤"
+                      ~ doc_matters.conf_make_meta.conf.w_srv_data_root_url_html
+                      ~ "/"
+                      ~ doc_matters.src.filename_base
+                      ~ "/"
+                      ~ doc_matters.has.tag_associations[(m.captures["hash"])]["seg_lv4"]
+                      ~ ".html"
+                      ~ "#" ~ m.captures["hash"]
+                    ~ "├"
+                  );
+                }
+              } else {
+                if (doc_matters.opt.action.vox_gt0) {
+                  writeln(
+                    "WARNING on internal document links, anchor to link <<"
+                     ~ m.captures["hash"]
+                     ~ ">> not found in document, "
+                     ~ "anchor: " ~ m.captures["hash"]
+                     ~ " document: " ~ doc_matters.src.filename
+                  );
+                }
+              }
+            }
+          } else {
+            if (auto m = _txt.match(rgx.inline_link_seg_and_hash)) {
+              _txt = _txt.replaceFirst(
+                rgx.inline_link_seg_and_hash,
+                "┥$1┝┤"
+                  ~ doc_matters.conf_make_meta.conf.w_srv_data_root_url_html
+                  ~ "/"
+                  ~ pth_html.tail_fn_scroll(doc_matters.src.filename)
+                  ~ "#" ~ m.captures["hash"]
+                ~ "├"
+              );
+            }
+          }
+          _txt = _txt
+            .replaceAll(
+              rgx.inline_link_fn_suffix,
+              ("$1.html"))
+            .replaceAll(
+              rgx.inline_link,
+              ("<a href=\"$2\">$1</a>"))
+            .replaceAll(
+              rgx.mark_internal_site_lnk,
+              "");
+        }
+        debug(markup_links) {
+          if (_txt.match(rgx.inline_link)) {
+            writeln(__LINE__,
+              " (missed) markup link identified (",
+              obj.has.inline_links,
+              "): ", obj.metainfo.is_a, ": ",
+              obj.text
+            );
+          }
+          // if (obj.metainfo.is_a == "bookindex") { // DEBUG LINE
+          //   if (_txt.match(regex(r"<a href"))) {
+          //     writeln(__LINE__, " ",
+          //       doc_matters.conf_make_meta.conf.w_srv_data_root_url_html,
+          //       "/",
+          //       doc_matters.src.filename_base,
+          //       "\n",
+          //       _txt
+          //     );
+          //   }
+          // }
+        }
+        debug(markup) {
+          if (_txt.match(rgx.inline_link)) {
+            writeln(__LINE__,
+              " (missed) markup link identified (",
+              obj.has.inline_links,
+              "): ", obj.metainfo.is_a, ": ",
+              obj.text
+            );
+          }
+        }
+        return _txt;
+      }
+      string inline_notes_scroll(M,O)(
+                     M   doc_matters,
+        const        O   obj,
+        string           _txt,
+      ) {
+        if (obj.has.inline_notes_reg) {
+          string[] _endnotes;
+          foreach(m; _txt.matchAll(rgx.inline_notes_al_regular_number_note)) {
+            _endnotes ~= "<p class=\"endnote\">"
+            ~ "<sup>" ~ m.captures["num"] ~ ".</sup>"
+            ~ m.captures["note"]
+            ~ "</p>";
+          }
+          _txt = replaceAll!(m =>
+            ("&#160;" ~ "<sup>" ~ m["num"] ~ "</sup>"))
+              (_txt, rgx.inline_notes_al_regular_number_note)
+            ~ _endnotes.join("\n");
+        }
+        debug(markup_endnotes) {
+          if (_txt.match(rgx.inline_notes_al_regular_number_note)) {
+            writeln(__LINE__, " (missed) markup endnote: ", obj.metainfo.is_a, ": ", obj.text);
+          }
+        }
+        debug(markup) {
+          if (_txt.match(rgx.inline_notes_al_regular_number_note)) {
+            writeln(__LINE__, " (missed) markup endnote: ", obj.metainfo.is_a, ": ", obj.text);
+          }
+        }
+        return _txt;
+      }
+      string xml_type="seg"; /+ set html document type to be linked to here (seg|scroll) +/
+      string inline_markup(M,O)(
+                     M  doc_matters,
+        const        O  obj,
+        string          _txt,
+      ) {
+        if (obj.metainfo.is_a == "group") {
+          _txt = inline_grouped_text_bullets_indents(doc_matters, obj, _txt, xml_type);
+        }
+        _txt = inline_images(doc_matters, obj, _txt, xml_type);
+        _txt = inline_links(doc_matters, obj, _txt, xml_type);
+        _txt = inline_notes_scroll(doc_matters, obj, _txt);
+        return _txt;
+      }
+      string html_heading(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body" || "frontmatter" || "backmatter");
+        assert(obj.metainfo.is_of_section == "body" || "toc" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb");
+        assert(obj.metainfo.is_of_type    == "para");
+        assert(obj.metainfo.is_a          == "heading");
+        string _txt = munge_html(doc_matters, obj);
+        _txt = inline_markup(doc_matters, obj, _txt);
+        string o = format(q"┃<p class="%s"><b>
+            %s
+          </b></p>┃",
+            obj.metainfo.is_a,
+            _txt,
+          );
+        return o;
+      }
+      string html_para(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body" || "frontmatter" || "backmatter");
+        assert(obj.metainfo.is_of_section == "body" || "toc" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb");
+        assert(obj.metainfo.is_of_type    == "para");
+        assert(obj.metainfo.is_a          == "para" || "toc" || "endnote" || "glossary" || "bibliography" || "bookindex" || "blurb");
+        string _txt = munge_html(doc_matters, obj);
+        _txt = (obj.attrib.bullet) ? ("●&#160;&#160;" ~ _txt) : _txt;
+        _txt = inline_markup(doc_matters, obj, _txt);
+        string o = format(q"┃<p class="%s" indent="h%si%s">
+          %s
+        </p>┃",
+            obj.metainfo.is_a,
+            obj.attrib.indent_hang,
+            obj.attrib.indent_base,
+            _txt
+          );
+        return o;
+      }
+      string html_quote(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body");
+        assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+        assert(obj.metainfo.is_of_type    == "block");
+        assert(obj.metainfo.is_a          == "quote");
+        string _txt = munge_html(doc_matters, obj);
+        string o = format(q"┃<p class="%s">
+          %s
+        </p>┃",
+            obj.metainfo.is_a,
+            _txt
+          );
+        return o;
+      }
+      string html_group(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body");
+        assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+        assert(obj.metainfo.is_of_type    == "block");
+        assert(obj.metainfo.is_a          == "group");
+        string _txt = munge_html(doc_matters, obj);
+        _txt = inline_markup(doc_matters, obj, _txt);
+        string o = format(q"┃<p class="%s">
+          %s
+        </p>┃",
+            obj.metainfo.is_a,
+            _txt
+          );
+        return o;
+      }
+      string html_block(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body");
+        assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+        assert(obj.metainfo.is_of_type    == "block");
+        assert(obj.metainfo.is_a          == "block");
+        string _txt = munge_html(doc_matters, obj);
+        _txt = inline_markup(doc_matters, obj, _txt);
+        string o = format(q"┃
+        <p class="%s">%s</p>┃",
+            obj.metainfo.is_a,
+            _txt.stripRight
+          );
+        return o;
+      }
+      string html_verse(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body");
+        assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+        assert(obj.metainfo.is_of_type    == "block");
+        assert(obj.metainfo.is_a          == "verse");
+        string _txt = munge_html(doc_matters, obj);
+        string o = format(q"┃<p class="%s">%s</p>┃",
+            obj.metainfo.is_a,
+            _txt
+          );
+        return o;
+      }
+      string html_code(O)(
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body");
+        assert(obj.metainfo.is_of_section == "body");
+        assert(obj.metainfo.is_of_type    == "block");
+        assert(obj.metainfo.is_a          == "code");
+        string _txt = html_special_characters_code(obj.text);
+        string o = format(q"┃<p class="%s">%s</p>┃",
+            obj.metainfo.is_a,
+            _txt
+          );
+        return o;
+      }
+      string html_table(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        assert(obj.metainfo.is_of_part    == "body");
+        assert(obj.metainfo.is_of_section == "body");
+        assert(obj.metainfo.is_of_type    == "block");
+        assert(obj.metainfo.is_a          == "table");
+        Tuple!(string, string) _tablarize(O)(
+          const O         obj,
+                string    _txt,
+        ) {
+          string[] _table_rows = _txt.split(rgx.table_delimiter_row);
+          string[] _table_cols;
+          string _table;
+          string _tablenote;
+          foreach(row_idx, row; _table_rows) {
+            _table_cols = row.split(rgx.table_delimiter_col);
+              _table ~= "<tr>";
+              foreach(col_idx, cell; _table_cols) {
+                if ((_table_cols.length == 1)
+                && (_table_rows.length <= row_idx+2)) { // check row_idx+2 (rather than == ++row_idx)
+                  _tablenote ~= cell;
+                } else {
+                  string _col_is = (row_idx == 0 && obj.table.heading) ? "th" : "td";
+                  string _align = ("style=\"text-align:"
+                  ~ ((obj.table.column_aligns[col_idx] == "l")
+                  ? "left\"" : "right\""));
+                  _table ~= "<"
+                    ~ _col_is
+                    ~ " width=\""
+                    ~ obj.table.column_widths[col_idx].to!string
+                    ~ "%\" "
+                    ~ _align
+                    ~ ">";
+                  _table ~= cell;
+                  _table ~= "</"
+                    ~ _col_is
+                    ~ ">";
+                }
+              }
+              _table ~= "</tr>";
+            }
+          Tuple!(string, string) t = tuple(
+            _table,
+            _tablenote,
+          );
+          return t;
+        }
+        string _txt = munge_html(doc_matters, obj);
+        Tuple!(string, string) t = _tablarize(obj, _txt);
+        _txt = t[0];
+        string _note = t[1];
+        string o = format(q"┃<p class="%s">
+          <table summary="normal text css" width="95%%" border="0" cellpadding="2" align="center">
+            %s
+          </table>
+          %s
+        </p>┃",
+          obj.metainfo.is_a,
+          _txt,
+          _note
+        );
+        return o;
+      }
+      string sqlite_load_string(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string o;
+        return o;
+      }
+      string sqlite_statement(O)(
+        const O          obj,
+              string     _txt,
+              string     _html,
+      ) {
+        void _sql_exe(O)(
+          string _sql,
+        ) {
+          writeln(_html);
+          writeln(_sql);
+        }
+        string _sql;
+        return _sql;
+      }
+      string[string] heading(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_heading(doc_matters, obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+      string[string] para(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_para(doc_matters, obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+      string[string] quote(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_quote(doc_matters, obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+      string[string] group(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_group(doc_matters, obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+      string[string] block(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_block(doc_matters, obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+      string[string] verse(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_verse(doc_matters, obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+      string[string] code(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_code(obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+      string[string] table(M,O)(
+              M   doc_matters,
+        const O   obj,
+      ) {
+        string[string] obj_txt = [
+          "text": generic_munge_sanitize_text_for_search(obj.text),
+          "html": html_table(doc_matters, obj)
+        ];
+        { /+ debug +/
+          if (doc_matters.opt.action.debug_do_sqlite) {
+            debug(sql_txt) {
+              writeln(obj_txt["text"]);
+            }
+            debug(sql_html) {
+              writeln(obj_txt["html"]);
+            }
+          } else {
+            // load sql
+          }
+        }
+        return obj_txt;
+      }
+    }
+    return sqlite_format_and_load_objects();
+  }
+}
+template SQLiteTablesReCreate() {
+  string SQLiteTablesReCreate()() {
+    string _sql_instruct;
+    _sql_instruct = format(q"┃
+      DROP INDEX IF EXISTS idx_ocn;
+      DROP INDEX IF EXISTS idx_uid;
+      DROP INDEX IF EXISTS idx_digest_clean;
+      DROP INDEX IF EXISTS idx_digest_all;
+      DROP INDEX IF EXISTS idx_clean;
+      DROP INDEX IF EXISTS idx_title;
+      DROP INDEX IF EXISTS idx_author;
+      DROP INDEX IF EXISTS src_filename_base;
+      DROP INDEX IF EXISTS idx_language_document_char;
+      DROP INDEX IF EXISTS idx_classify_topic_register;
+      DROP INDEX IF EXISTS idx_topic_list;
+      DROP TABLE IF EXISTS metadata_and_text;
+      DROP TABLE IF EXISTS topic_register;
+      DROP TABLE IF EXISTS doc_objects;
+      DROP TABLE IF EXISTS urls;
+      CREATE TABLE IF NOT EXISTS metadata_and_text (
+        uid                              VARCHAR(256)      UNIQUE, -- filename, language char, pod/txt (decide on delimiter [,;:/])
+        src_composite_id_per_txt         VARCHAR(256)  NOT NULL,   -- UNIQUE, z pod name if any + src filename + language code
+        src_composite_id_per_pod         VARCHAR(256)  NOT NULL,   -- z pod name if any + src filename
+        title                            VARCHAR(800)  NOT NULL,
+        title_main                       VARCHAR(400)  NOT NULL,
+        title_sub                        VARCHAR(400)      NULL,
+        title_short                      VARCHAR(400)      NULL,
+        title_edition                    VARCHAR(10)       NULL,
+        title_language                   VARCHAR(100)      NULL,
+        title_language_char              VARCHAR(6)        NULL,
+        creator_author                   VARCHAR(600)  NOT NULL,
+        creator_author_last_first        VARCHAR(600)  NOT NULL,
+        creator_author_email             VARCHAR(100)      NULL,
+        creator_author_hon               VARCHAR(100)      NULL,
+        creator_author_nationality       VARCHAR(100)      NULL,
+        creator_editor                   VARCHAR(600)      NULL,
+        creator_contributor              VARCHAR(600)      NULL,
+        creator_illustrator              VARCHAR(600)      NULL,
+        creator_photographer             VARCHAR(600)      NULL,
+        creator_translator               VARCHAR(600)      NULL,
+        creator_prepared_by              VARCHAR(600)      NULL,
+        creator_digitized_by             VARCHAR(600)      NULL,
+        creator_audio                    VARCHAR(600)      NULL,
+        creator_video                    VARCHAR(600)      NULL,
+        language_document                VARCHAR(100)      NULL,
+        language_document_char           VARCHAR(6)    NOT NULL,
+        language_original                VARCHAR(100)      NULL,
+        language_original_char           VARCHAR(6)        NULL,
+        date_added_to_site               VARCHAR(10)       NULL,
+        date_available                   VARCHAR(10)       NULL,
+        date_created                     VARCHAR(10)       NULL,
+        date_issued                      VARCHAR(10)       NULL,
+        date_modified                    VARCHAR(10)       NULL,
+        date_published                   VARCHAR(10)       NULL,
+        date_valid                       VARCHAR(10)       NULL,
+        date_translated                  VARCHAR(10)       NULL,
+        date_original_publication        VARCHAR(10)       NULL,
+        date_generated                   VARCHAR(10)       NULL,
+        original_title                   VARCHAR(800)      NULL,
+        original_publisher               VARCHAR(600)      NULL,
+        original_language                VARCHAR(100)      NULL,
+        original_language_char           VARCHAR(6)        NULL,
+        original_source                  VARCHAR(600)      NULL,
+        original_institution             VARCHAR(600)      NULL,
+        original_nationality             VARCHAR(100)      NULL,
+        rights_copyright                 VARCHAR(2500)     NULL,
+        rights_copyright_audio           VARCHAR(2500)     NULL,
+        rights_copyright_cover           VARCHAR(2500)     NULL,
+        rights_copyright_illustrations   VARCHAR(2500)     NULL,
+        rights_copyright_photographs     VARCHAR(2500)     NULL,
+        rights_copyright_text            VARCHAR(2500)     NULL,
+        rights_copyright_translation     VARCHAR(2500)     NULL,
+        rights_copyright_video           VARCHAR(2500)     NULL,
+        rights_license                   VARCHAR(2500)     NULL,
+        identifier_oclc                  VARCHAR(30)       NULL,
+        identifier_isbn                  VARCHAR(16)       NULL,
+        classify_topic_register          VARCHAR(2500)     NULL,
+        classify_subject                 VARCHAR(600)      NULL,
+        classify_loc                     VARCHAR(30)       NULL,
+        classify_dewey                   VARCHAR(30)       NULL,
+        classify_keywords                VARCHAR(600)      NULL,
+        notes_abstract                   TEXT              NULL,
+        notes_description                TEXT              NULL,
+        notes_comment                    TEXT              NULL,
+        notes_coverage                   VARCHAR(200)      NULL,
+        notes_relation                   VARCHAR(200)      NULL,
+        notes_history                    VARCHAR(600)      NULL,
+        notes_type                       VARCHAR(600)      NULL,
+        notes_format                     VARCHAR(600)      NULL,
+        notes_prefix                     TEXT              NULL,
+        notes_prefix_a                   TEXT              NULL,
+        notes_prefix_b                   TEXT              NULL,
+        notes_suffix                     TEXT              NULL,
+        publisher                        VARCHAR(600)      NULL,
+        src_filename_base                VARCHAR(256)  NOT NULL,
+        src_filename_suffix              VARCHAR(6)    NOT NULL,
+        src_fingerprint                  VARCHAR(256)      NULL,
+        src_filesize                     VARCHAR(10)       NULL,
+        src_wordcount                    VARCHAR(10)       NULL,
+        pod_name                         VARCHAR(256)      NULL, -- zipped pod, work to be done here
+        pod_fingerprint                  VARCHAR(256)      NULL, -- zipped pod, work to be done here
+        pod_size                         VARCHAR(10)       NULL, -- zipped pod, work to be done here
+        site_url_doc_root                VARCHAR(256)      NULL, -- url path to doc root
+        site_url_html_toc                VARCHAR(256)      NULL,
+        site_url_html_scroll             VARCHAR(256)      NULL,
+        site_url_epub                    VARCHAR(256)      NULL,
+        links                            TEXT              NULL
+      );
+      CREATE TABLE IF NOT EXISTS topic_register (
+        -- tid                              BIGINT            PRIMARY KEY,
+        uid_metadata_and_text            VARCHAR(256)      REFERENCES metadata_and_text(uid) ON DELETE CASCADE,
+        -- src_composite_id_per_txt         VARCHAR(256)  NOT NULL,  - UNIQUE, - z pod name if any + src filename + language code
+        -- src_composite_id_per_pod         VARCHAR(256)  NOT NULL,  - z pod name if any + src filename
+        topic_register                   VARCHAR(250)  NOT NULL,
+        site_url_doc_root                VARCHAR(256)      NULL, -- url path to doc root
+        site_url_html_toc                VARCHAR(256)      NULL,
+        site_url_html_scroll             VARCHAR(256)      NULL
+      );
+      CREATE TABLE IF NOT EXISTS doc_objects (
+        lid                              BIGINT            PRIMARY KEY,
+        uid_metadata_and_text            VARCHAR(256)      REFERENCES metadata_and_text(uid) ON DELETE CASCADE,
+        ocn                              SMALLINT,
+        obj_id                           VARCHAR(6)        NULL,
+        clean                            TEXT              NULL,
+        body                             TEXT              NULL,
+        seg                              VARCHAR(256)      NULL,
+        lev_an                           VARCHAR(1),
+        is_of_type                       VARCHAR(16),
+        is_a                             VARCHAR(16),
+        lev                              SMALLINT          NULL,
+        node                             VARCHAR(16)       NULL,
+        parent                           VARCHAR(16)       NULL,
+        last_descendant                  VARCHAR(16)       NULL, -- headings only
+        digest_clean                     CHAR(256),
+        digest_all                       CHAR(256),
+        seg_name                         CHAR(256),
+        types                            CHAR(1)           NULL
+      );
+      CREATE INDEX IF NOT EXISTS idx_ocn          ON doc_objects(ocn);
+      CREATE INDEX IF NOT EXISTS idx_digest_clean ON doc_objects(digest_clean);
+      CREATE INDEX IF NOT EXISTS idx_digest_all   ON doc_objects(digest_all);
+      CREATE INDEX IF NOT EXISTS idx_clean        ON doc_objects(clean);
+      CREATE INDEX IF NOT EXISTS idx_title        ON metadata_and_text(title);
+      CREATE INDEX IF NOT EXISTS idx_author       ON metadata_and_text(creator_author_last_first);
+      CREATE INDEX IF NOT EXISTS idx_uid          ON metadata_and_text(uid);
+      CREATE INDEX IF NOT EXISTS idx_filename     ON metadata_and_text(src_filename_base);
+      CREATE INDEX IF NOT EXISTS idx_language     ON metadata_and_text(language_document_char);
+      CREATE INDEX IF NOT EXISTS idx_topics       ON metadata_and_text(classify_topic_register);
+      CREATE INDEX IF NOT EXISTS idx_topic_list   ON topic_register(topic_register);
+    ┃",);
+    return _sql_instruct;
+  }
+}
+template SQLiteDeleteDocument() {
+  string SQLiteDeleteDocument(M)(
+    M doc_matters,
+  ) {
+    string _uid = doc_matters.src.doc_uid;
+    string _delete_uid = format(q"┃
+    DELETE FROM metadata_and_text
+    WHERE uid = '%s';
+    DELETE FROM doc_objects
+    WHERE uid_metadata_and_text = '%s';
+    ┃",
+      _uid,
+      _uid,
+    );
+    return _delete_uid;
+  }
+}
+template SQLiteInsertMetadata() {
+  string SQLiteInsertMetadata(M)(
+    M doc_matters,
+  ) {
+    string _uid = SQLinsertDelimiter!()(doc_matters.src.doc_uid);
+    string _insert_metadata = format(q"┃
+      INSERT INTO metadata_and_text (
+        uid,
+        src_filename_base,
+        src_filename_suffix,
+        src_composite_id_per_txt,
+        src_composite_id_per_pod,
+        title,
+        title_main,
+        title_sub,
+        title_short,
+        title_edition,
+        title_language,
+        creator_author,
+        creator_author_last_first,
+        creator_author_email,
+        creator_illustrator,
+        creator_translator,
+        language_document,
+        language_document_char,
+        date_added_to_site,
+        date_available,
+        date_created,
+        date_issued,
+        date_modified,
+        date_published,
+        date_valid,
+        rights_copyright,
+        rights_copyright_audio,
+        rights_copyright_cover,
+        rights_copyright_illustrations,
+        rights_copyright_photographs,
+        rights_copyright_text,
+        rights_copyright_translation,
+        rights_copyright_video,
+        rights_license,
+        identifier_oclc,
+        identifier_isbn,
+        classify_dewey,
+        classify_keywords,
+        classify_loc,
+        classify_subject,
+        classify_topic_register,
+        original_title,
+        original_publisher,
+        original_language,
+        original_language_char,
+        original_source,
+        notes_abstract,
+        notes_description,
+        publisher,
+        site_url_doc_root
+      )
+      VALUES (
+        '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s'
+      );
+    ┃",
+      _uid,
+      SQLinsertDelimiter!()(doc_matters.src.filename_base),
+      SQLinsertDelimiter!()(doc_matters.src.filename_extension),
+      SQLinsertDelimiter!()(doc_matters.src.docname_composite_unique_per_src_doc),
+      SQLinsertDelimiter!()(doc_matters.src.docname_composite_unique_per_src_pod),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.title_full),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.title_main),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.title_subtitle),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.title_short),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.title_edition),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.title_language),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.creator_author),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.creator_author_surname_fn),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.creator_author_email),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.creator_illustrator),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.creator_translator),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.language_document),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.language_document_char),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.date_added_to_site),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.date_available),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.date_created),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.date_issued),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.date_modified),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.date_published),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.date_valid),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright_audio),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright_cover),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright_illustrations),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright_photographs),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright_text),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright_translation),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_copyright_video),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.rights_license),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.identifier_oclc),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.identifier_isbn),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.classify_dewey),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.classify_keywords),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.classify_loc),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.classify_subject),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.classify_topic_register),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.notes_abstract),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.notes_description),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.original_title),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.original_publisher),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.original_language),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.original_language_char),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.original_source),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.meta.publisher),
+      SQLinsertDelimiter!()(doc_matters.conf_make_meta.conf.w_srv_data_root_url_html)
+    );
+    return _insert_metadata;
+  }
+}
+template SQLiteInsertMetadataTopics() {
+  string SQLiteInsertMetadataTopics(M)(
+    M doc_matters,
+  ) {
+    string _uid = SQLinsertDelimiter!()(doc_matters.src.doc_uid);
+    string[] _insert_topics;
+    foreach (topic_line; doc_matters.conf_make_meta.meta.classify_topic_register_expanded_arr) {
+      // writeln(topic_line);
+      _insert_topics ~= format(q"┃
+        INSERT INTO topic_register (
+          uid_metadata_and_text,
+          topic_register
+        )
+        VALUES (
+          '%s',
+          '%s'
+        );
+      ┃",
+        _uid,
+        SQLinsertDelimiter!()(topic_line)
+      );
+    }
+    return _insert_topics.join.to!(char[]).toUTF8;
+  }
+}
+template SQLiteInsertDocObjectsLoop() {
+  string SQLiteInsertDocObjectsLoop(D,M)(
+    const D    doc_abstraction,
+          M    doc_matters,
+  ) {
+    string _uid = SQLinsertDelimiter!()(doc_matters.src.doc_uid);
+    auto url_html = spineUrlsHTML!()(doc_matters.conf_make_meta.conf.w_srv_data_root_url_html, doc_matters.src.language);
+    string insertDocObjectsRow(O)(O obj) {
+      string _insert_doc_objects_row = format(q"┃
+        INSERT INTO doc_objects (
+          uid_metadata_and_text,
+          ocn,
+          obj_id,
+          clean,
+          body,
+          lev,
+          is_of_type,
+          is_a,
+          seg_name
+        )
+        VALUES (
+          '%s', %s, '%s', '%s', '%s', %s, '%s', '%s', '%s'
+        );
+      ┃",
+        _uid,
+        obj.metainfo.ocn,
+        obj.metainfo.identifier,
+        SQLinsertDelimiter!()(obj_txt["text"]),
+        SQLinsertDelimiter!()(obj_txt["html"]),
+        obj.metainfo.heading_lev_markup,
+        obj.metainfo.is_of_type,
+        obj.metainfo.is_a,
+        obj.tags.html_segment_anchor_tag_is
+      );
+      return _insert_doc_objects_row;
+    }
+    auto format_and_sqlite_load = SQLiteFormatAndLoadObject!()(doc_matters);
+    string[string] obj_txt;
+    string doc_text;
+    string[] _insert_doc_objects;
+    foreach (part; doc_matters.has.keys_seq.sql) {
+      foreach (obj; doc_abstraction[part]) {
+        switch (obj.metainfo.is_of_part) {
+        case "frontmatter":              assert(part == "head", part);
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              obj_txt = format_and_sqlite_load.heading(doc_matters, obj);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_sqlite) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_sqlite) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+              }
+            }
+            break;
+          }
+          break;
+        case "body": //                    assert(part == "body", part);
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              debug (asserts) {
+                if (part != "body") {
+                  writeln(__LINE__, ": ", obj.text);
+                }
+              }
+              obj_txt = format_and_sqlite_load.heading(doc_matters, obj);
+              break;
+            case "para":
+              obj_txt = format_and_sqlite_load.para(doc_matters, obj);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_sqlite) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          case "block":
+            switch (obj.metainfo.is_a) {
+            case "quote":
+              obj_txt = format_and_sqlite_load.quote(doc_matters, obj);
+              break;
+            case "group":
+              obj_txt = format_and_sqlite_load.group(doc_matters, obj);
+              break;
+            case "block":
+              obj_txt = format_and_sqlite_load.block(doc_matters, obj);
+              break;
+            case "poem":                        // double check on keeping both poem & verse
+              break;
+            case "verse":
+              obj_txt = format_and_sqlite_load.verse(doc_matters, obj);
+              break;
+            case "code":
+              obj_txt = format_and_sqlite_load.code(doc_matters, obj);
+              break;
+            case "table":
+              obj_txt = format_and_sqlite_load.table(doc_matters, obj);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_sqlite) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_sqlite) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+              }
+            }
+            break;
+          }
+          break;
+        case "backmatter":
+          assert(part == "glossary" || "bibliography" || "bookindex" || "blurb" || "tail", part);
+          switch (obj.metainfo.is_of_type) {
+          case "para":
+            switch (obj.metainfo.is_a) {
+            case "heading":
+              obj_txt = format_and_sqlite_load.heading(doc_matters, obj);
+              break;
+            case "glossary":             assert(part == "glossary", part);
+              obj_txt = format_and_sqlite_load.para(doc_matters, obj);
+              break;
+            case "bibliography":         assert(part == "bibliography", part);
+              obj_txt = format_and_sqlite_load.para(doc_matters, obj);
+              break;
+            case "bookindex":            assert(part == "bookindex", part);
+              obj_txt = format_and_sqlite_load.para(doc_matters, obj);
+              break;
+            case "blurb":                assert(part == "blurb", part);
+              obj_txt = format_and_sqlite_load.para(doc_matters, obj);
+              break;
+            default:
+              { /+ debug +/
+                if (doc_matters.opt.action.debug_do_sqlite) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+                }
+              }
+              break;
+            }
+            break;
+          default:
+            { /+ debug +/
+              if (doc_matters.opt.action.debug_do_sqlite) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
+              }
+            }
+            break;
+          }
+          break;
+        case "comment":
+          break;
+        default:
+          { /+ debug +/
+            if (doc_matters.opt.action.debug_do_sqlite) {
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part); // check where empty value could come from
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.text); // check where empty value could come from
+            }
+          }
+          break;
+        }
+        if (obj.metainfo.is_a == "heading") {
+          if (doc_matters.opt.action.show_sqlite) {
+            if (obj.metainfo.heading_lev_markup == 0) {
+              writeln(doc_matters.src.filename);
+            }
+            writeln(
+              "markup: ", obj.metainfo.heading_lev_markup,
+              "> ", obj.metainfo.dom_structure_markedup_tags_status,
+              "; collapsed: ", obj.metainfo.heading_lev_collapsed,
+              "> ", obj.metainfo.dom_structure_collapsed_tags_status,
+              "; ocn: ", obj.metainfo.ocn,
+              " node: ", obj.metainfo.node,
+              "; parent: ", obj.metainfo.parent_lev_markup,
+              "; ocn: ", obj.metainfo.parent_ocn,
+              "; ",
+            );
+          }
+        }
+        if (!(obj.metainfo.is_a == "comment")) {
+          _insert_doc_objects ~= insertDocObjectsRow(obj);
+        }
+      } // loop closes
+    }
+    return _insert_doc_objects.join.to!(char[]).toUTF8;
+  }
+}
+template SQLiteTablesCreate() {
+  void SQLiteTablesCreate(E,O,C)(E env, O opt_action, C config) {
+    import d2sqlite3;
+    template SQLiteTablesReCreate() {
+      string SQLiteTablesReCreate()() {
+        string _sql_instruct;
+        _sql_instruct = format(q"┃
+          DROP INDEX IF EXISTS idx_ocn;
+          DROP INDEX IF EXISTS idx_uid;
+          DROP INDEX IF EXISTS idx_digest_clean;
+          DROP INDEX IF EXISTS idx_digest_all;
+          DROP INDEX IF EXISTS idx_clean;
+          DROP INDEX IF EXISTS idx_title;
+          DROP INDEX IF EXISTS idx_author;
+          DROP INDEX IF EXISTS src_filename_base;
+          DROP INDEX IF EXISTS idx_language_document_char;
+          DROP INDEX IF EXISTS idx_classify_topic_register;
+          DROP INDEX IF EXISTS idx_topic_list;
+          DROP TABLE IF EXISTS metadata_and_text;
+          DROP TABLE IF EXISTS topic_register;
+          DROP TABLE IF EXISTS doc_objects;
+          DROP TABLE IF EXISTS urls;
+          CREATE TABLE IF NOT EXISTS metadata_and_text (
+            uid                              VARCHAR(256)      UNIQUE, -- filename, language char, pod/txt (decide on delimiter [,;:/])
+            src_composite_id_per_txt         VARCHAR(256)  NOT NULL,   -- UNIQUE, z pod name if any + src filename + language code
+            src_composite_id_per_pod         VARCHAR(256)  NOT NULL,   -- z pod name if any + src filename
+            title                            VARCHAR(800)  NOT NULL,
+            title_main                       VARCHAR(400)  NOT NULL,
+            title_sub                        VARCHAR(400)      NULL,
+            title_short                      VARCHAR(400)      NULL,
+            title_edition                    VARCHAR(10)       NULL,
+            title_language                   VARCHAR(100)      NULL,
+            title_language_char              VARCHAR(6)        NULL,
+            creator_author                   VARCHAR(600)  NOT NULL,
+            creator_author_last_first        VARCHAR(600)  NOT NULL,
+            creator_author_email             VARCHAR(100)      NULL,
+            creator_author_hon               VARCHAR(100)      NULL,
+            creator_author_nationality       VARCHAR(100)      NULL,
+            creator_editor                   VARCHAR(600)      NULL,
+            creator_contributor              VARCHAR(600)      NULL,
+            creator_illustrator              VARCHAR(600)      NULL,
+            creator_photographer             VARCHAR(600)      NULL,
+            creator_translator               VARCHAR(600)      NULL,
+            creator_prepared_by              VARCHAR(600)      NULL,
+            creator_digitized_by             VARCHAR(600)      NULL,
+            creator_audio                    VARCHAR(600)      NULL,
+            creator_video                    VARCHAR(600)      NULL,
+            language_document                VARCHAR(100)      NULL,
+            language_document_char           VARCHAR(6)    NOT NULL,
+            language_original                VARCHAR(100)      NULL,
+            language_original_char           VARCHAR(6)        NULL,
+            date_added_to_site               VARCHAR(10)       NULL,
+            date_available                   VARCHAR(10)       NULL,
+            date_created                     VARCHAR(10)       NULL,
+            date_issued                      VARCHAR(10)       NULL,
+            date_modified                    VARCHAR(10)       NULL,
+            date_published                   VARCHAR(10)       NULL,
+            date_valid                       VARCHAR(10)       NULL,
+            date_translated                  VARCHAR(10)       NULL,
+            date_original_publication        VARCHAR(10)       NULL,
+            date_generated                   VARCHAR(10)       NULL,
+            original_title                   VARCHAR(800)      NULL,
+            original_publisher               VARCHAR(600)      NULL,
+            original_language                VARCHAR(100)      NULL,
+            original_language_char           VARCHAR(6)        NULL,
+            original_source                  VARCHAR(600)      NULL,
+            original_institution             VARCHAR(600)      NULL,
+            original_nationality             VARCHAR(100)      NULL,
+            rights_copyright                 VARCHAR(2500)     NULL,
+            rights_copyright_audio           VARCHAR(2500)     NULL,
+            rights_copyright_cover           VARCHAR(2500)     NULL,
+            rights_copyright_illustrations   VARCHAR(2500)     NULL,
+            rights_copyright_photographs     VARCHAR(2500)     NULL,
+            rights_copyright_text            VARCHAR(2500)     NULL,
+            rights_copyright_translation     VARCHAR(2500)     NULL,
+            rights_copyright_video           VARCHAR(2500)     NULL,
+            rights_license                   VARCHAR(2500)     NULL,
+            identifier_oclc                  VARCHAR(30)       NULL,
+            identifier_isbn                  VARCHAR(16)       NULL,
+            classify_topic_register          VARCHAR(2500)     NULL,
+            classify_subject                 VARCHAR(600)      NULL,
+            classify_loc                     VARCHAR(30)       NULL,
+            classify_dewey                   VARCHAR(30)       NULL,
+            classify_keywords                VARCHAR(600)      NULL,
+            notes_abstract                   TEXT              NULL,
+            notes_description                TEXT              NULL,
+            notes_comment                    TEXT              NULL,
+            notes_coverage                   VARCHAR(200)      NULL,
+            notes_relation                   VARCHAR(200)      NULL,
+            notes_history                    VARCHAR(600)      NULL,
+            notes_type                       VARCHAR(600)      NULL,
+            notes_format                     VARCHAR(600)      NULL,
+            notes_prefix                     TEXT              NULL,
+            notes_prefix_a                   TEXT              NULL,
+            notes_prefix_b                   TEXT              NULL,
+            notes_suffix                     TEXT              NULL,
+            publisher                        VARCHAR(600)      NULL,
+            src_filename_base                VARCHAR(256)  NOT NULL,
+            src_filename_suffix              VARCHAR(6)    NOT NULL,
+            src_fingerprint                  VARCHAR(256)      NULL,
+            src_filesize                     VARCHAR(10)       NULL,
+            src_wordcount                    VARCHAR(10)       NULL,
+            pod_name                         VARCHAR(256)      NULL, -- zipped pod, work to be done here
+            pod_fingerprint                  VARCHAR(256)      NULL, -- zipped pod, work to be done here
+            pod_size                         VARCHAR(10)       NULL, -- zipped pod, work to be done here
+            site_url_doc_root                VARCHAR(256)      NULL, -- url path to doc root
+            site_url_html_toc                VARCHAR(256)      NULL,
+            site_url_html_scroll             VARCHAR(256)      NULL,
+            site_url_epub                    VARCHAR(256)      NULL,
+            links                            TEXT              NULL
+          );
+          CREATE TABLE IF NOT EXISTS topic_register (
+            -- tid                              BIGINT            PRIMARY KEY,
+            uid_metadata_and_text            VARCHAR(256)      REFERENCES metadata_and_text(uid) ON DELETE CASCADE,
+            -- src_composite_id_per_txt         VARCHAR(256)  NOT NULL,  - UNIQUE, - z pod name if any + src filename + language code
+            -- src_composite_id_per_pod         VARCHAR(256)  NOT NULL,  - z pod name if any + src filename
+            topic_register                   VARCHAR(250)  NOT NULL,
+            site_url_doc_root                VARCHAR(256)      NULL, -- url path to doc root
+            site_url_html_toc                VARCHAR(256)      NULL,
+            site_url_html_scroll             VARCHAR(256)      NULL
+          );
+          CREATE TABLE IF NOT EXISTS doc_objects (
+            lid                              BIGINT            PRIMARY KEY,
+            uid_metadata_and_text            VARCHAR(256)      REFERENCES metadata_and_text(uid) ON DELETE CASCADE,
+            ocn                              SMALLINT,
+            obj_id                           VARCHAR(6)        NULL,
+            clean                            TEXT              NULL,
+            body                             TEXT              NULL,
+            seg                              VARCHAR(256)      NULL,
+            lev_an                           VARCHAR(1),
+            is_of_type                       VARCHAR(16),
+            is_a                             VARCHAR(16),
+            lev                              SMALLINT          NULL,
+            node                             VARCHAR(16)       NULL,
+            parent                           VARCHAR(16)       NULL,
+            last_descendant                  VARCHAR(16)       NULL, -- headings only
+            digest_clean                     CHAR(256),
+            digest_all                       CHAR(256),
+            seg_name                         CHAR(256),
+            types                            CHAR(1)           NULL
+          );
+          CREATE INDEX IF NOT EXISTS idx_ocn          ON doc_objects(ocn);
+          CREATE INDEX IF NOT EXISTS idx_digest_clean ON doc_objects(digest_clean);
+          CREATE INDEX IF NOT EXISTS idx_digest_all   ON doc_objects(digest_all);
+          CREATE INDEX IF NOT EXISTS idx_clean        ON doc_objects(clean);
+          CREATE INDEX IF NOT EXISTS idx_title        ON metadata_and_text(title);
+          CREATE INDEX IF NOT EXISTS idx_author       ON metadata_and_text(creator_author_last_first);
+          CREATE INDEX IF NOT EXISTS idx_uid          ON metadata_and_text(uid);
+          CREATE INDEX IF NOT EXISTS idx_filename     ON metadata_and_text(src_filename_base);
+          CREATE INDEX IF NOT EXISTS idx_language     ON metadata_and_text(language_document_char);
+          CREATE INDEX IF NOT EXISTS idx_topics       ON metadata_and_text(classify_topic_register);
+          CREATE INDEX IF NOT EXISTS idx_topic_list   ON topic_register(topic_register);
+        ┃",);
+        return _sql_instruct;
+      }
+    }
+    try {
+      if (opt_action.sqlite_db_create) {
+        string _db_statement;
+        string db_filename = (opt_action.sqliteDB_filename.length > 0)
+        ? opt_action.sqliteDB_filename
+        : (config.conf.w_srv_db_sqlite_filename.length > 0)
+          ? config.conf.w_srv_db_sqlite_filename
+          : "";
+        string db_path = (opt_action.sqliteDB_path.length > 0)
+        ? opt_action.sqliteDB_path
+        : (config.conf.w_srv_db_sqlite_path.length > 0)
+          ? config.conf.w_srv_db_sqlite_path
+          : "";
+        if (db_filename.length > 0 && db_path.length > 0) {
+          if (opt_action.vox_gt2) {
+            writeln("db name: ", db_filename);
+            writeln("db path: ", db_path);
+            writeln("db name & path: ", db_path, "/", db_filename);
+          }
+          if (opt_action.vox_gt1) {
+            writeln("attempting to create db: ", db_path, "/", db_filename);
+          }
+          auto pth_sqlite = spinePathsSQLite!()(db_filename, db_path);
+          if ((isValidPath(pth_sqlite.base) && exists(pth_sqlite.base) != 0 && pth_sqlite.base.isDir)) {
+          } else {
+            try {
+              pth_sqlite.base.mkdirRecurse;
+            } catch (FileException ex) { }
+          }
+          auto db = Database(pth_sqlite.sqlite_file);
+          {
+            _db_statement ~= SQLiteTablesReCreate!()();
+          }
+          SQLiteDbRun!()(db, _db_statement, opt_action, "TABLE RE-CREATE");
+        } else {
+          writeln("must provide db name & output root path either on the command line or in configuration file");
+          writeln("db name: ", db_filename);
+          writeln("db path: ", db_path);
+        }
+      }
+    }
+    catch (FileException e) {
+      writeln("Failed (FileException): ", e.msg);
+      writeln(e.file, " line: ", e.line);
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+    catch (ErrnoException e) {
+      writeln("Failed (ErrnoException):  ", e.msg);
+      writeln(e.file, " line: ", e.line);
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+    catch (Exception e) {
+      writeln("Failed (Exception): ", e.msg);
+      writeln(e.file, " line: ", e.line);
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+    catch (Throwable) {
+      import core.runtime;
+      core.runtime.Runtime.terminate();
+    }
+  }
+}
+template SQLiteDbDrop() {
+  void SQLiteDbDrop(O,C)(O opt_action, C config) {
+    writeln("db drop");
+    if ((opt_action.sqlite_db_drop)) {
+      string db_filename = (opt_action.sqliteDB_filename.length > 0)
+      ? opt_action.sqliteDB_filename
+      : (config.conf.w_srv_db_sqlite_filename.length > 0)
+        ? config.conf.w_srv_db_sqlite_filename
+        : "";
+      string db_path = (opt_action.sqliteDB_path.length > 0) //
+      ? opt_action.sqliteDB_path
+      : (config.conf.w_srv_db_sqlite_path.length > 0)
+        ? config.conf.w_srv_db_sqlite_path
+        : "";
+      if (db_filename.length > 0 && db_path.length > 0) {
+        auto pth_sqlite = spinePathsSQLite!()(db_filename, db_path);
+        writeln("remove(", pth_sqlite.sqlite_file, ")");
+        try {
+          remove(pth_sqlite.sqlite_file);
+        } catch (FileException ex) {
+          // handle error
+        }
+      } else {
+        writeln("must provide db name & output root path either on the command line or in configuration file");
+        writeln("db name: ", db_filename);
+        writeln("db path: ", db_path);
+      }
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/xmls.d b/src/sisudoc/io_out/xmls.d
new file mode 100644
index 0000000..c268bb7
--- /dev/null
+++ b/src/sisudoc/io_out/xmls.d
@@ -0,0 +1,1424 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.io_out.xmls;
+@safe:
+template outputXHTMLs() {
+  import
+    std.file,
+    std.outbuffer,
+    std.uri,
+    std.conv : to;
+  import
+    sisudoc.io_out,
+    sisudoc.io_out.rgx,
+    sisudoc.meta.rgx_files,
+    sisudoc.io_out.rgx_xhtml,
+    sisudoc.io_out.create_zip_file,
+    sisudoc.io_out.xmls,
+    sisudoc.io_out.xmls_css;
+  mixin spineRgxOut;
+  mixin spineRgxXHTML;
+  struct outputXHTMLs {
+    static auto rgx = RgxO();
+    static auto rgx_xhtml = RgxXHTML();
+    string div_delimit(
+                 string  section,
+      return ref string  previous_section
+    ) {
+      string delimit = "";
+      string delimit_ = "";
+      if (section != previous_section) {
+        switch (section) {
+        case "head":
+          delimit_ ~= "\n<div class=\"doc_title\">\n" ;
+          break;
+        case "toc":
+          delimit_ ~= "\n<div class=\"doc_toc\">\n" ;
+          break;
+        case "bookindex":
+          delimit_ ~= "\n<div class=\"doc_bookindex\">\n" ;
+          break;
+        default:
+          delimit_ ~= "\n<div class=\"doc_" ~ section ~ "\">\n" ;
+          break;
+        }
+        if (previous_section.length > 0) {
+          delimit ~= "\n</div>";
+        }
+        previous_section = section;
+        delimit ~=  delimit_;
+      }
+      // you also need to close the last div, introduce a footer?
+      return delimit;
+    }
+    string special_characters_text(string _txt) {
+      _txt = _txt
+        .replaceAll(rgx_xhtml.ampersand,    "&amp;")  // "&#38;"
+        .replaceAll(rgx_xhtml.quotation,    "&quot;") // "&#34;"
+        .replaceAll(rgx_xhtml.less_than,    "&lt;")   // "&#60;"
+        .replaceAll(rgx_xhtml.greater_than, "&gt;")   // "&#62;"
+        .replaceAll(rgx.br_line,            "<br />")
+        .replaceAll(rgx.br_line_inline,     "<br />")
+        .replaceAll(rgx.br_line_spaced,     "<br />\n<br />")
+        .replaceAll(rgx.nbsp_char,          " ");
+      return _txt;
+    }
+    string special_characters_date(string _txt) {
+      _txt = _txt
+        .replaceAll(regex(r"(?:-00)+"),     "")
+        .replaceAll(rgx.br_line,            "<br />")
+        .replaceAll(rgx.br_line_inline,     "<br />")
+        .replaceAll(rgx.br_line_spaced,     "<br />\n<br />")
+        .replaceAll(rgx.nbsp_char,          " ");
+      return _txt;
+    }
+    string special_characters_breaks_indents_bullets(O)(
+      const  O         obj,
+    ) {
+      string _txt = special_characters_text(obj.text);
+      if (obj.metainfo.is_a == "group") {
+        _txt = (_txt)
+          .replaceAll(rgx.grouped_para_indent_1,
+            "&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_2,
+            "&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_3,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_4,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_5,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_6,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_7,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_8,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_9,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_indent_hang,      "&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet,           "●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_1,
+            "&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_2,
+            "&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_3,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_4,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_5,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_6,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_7,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_8,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;")
+          .replaceAll(rgx.grouped_para_bullet_indent_9,
+            "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;●&nbsp;&nbsp;");
+      }
+      if (!(obj.metainfo.is_a == "code")) {
+        _txt = (_txt)
+          .replaceAll(rgx_xhtml.line_break,   "<br />");
+      }
+      return _txt;
+    }
+    string font_face(string _txt) {
+      _txt = _txt
+        .replaceAll(rgx.inline_emphasis,    ("<em>$1</em>"))
+        .replaceAll(rgx.inline_bold,        ("<b>$1</b>"))
+        .replaceAll(rgx.inline_underscore,  ("<u>$1</u>"))
+        .replaceAll(rgx.inline_italics,     ("<i>$1</i>"))
+        .replaceAll(rgx.inline_superscript, ("<sup>$1</sup>"))
+        .replaceAll(rgx.inline_subscript,   ("<sub>$1</sub>"))
+        .replaceAll(rgx.inline_strike,      ("<del>$1</del>"))
+        .replaceAll(rgx.inline_insert,      ("<ins>$1</ins>"))
+        .replaceAll(rgx.inline_mono,        ("<tt>$1</tt>"))
+        .replaceAll(rgx.inline_cite,        ("<cite>$1</cite>"));
+      return _txt;
+    }
+    string _xhtml_anchor_tags(O)(O obj) {
+      string tags="";
+      if (obj.tags.anchor_tags.length > 0) {
+        foreach (tag; obj.tags.anchor_tags) {
+          if (!(tag.empty)) {
+            tags ~= "<a name=\"" ~ special_characters_text(tag) ~ "\"></a>";
+          }
+        }
+      }
+      return tags;
+    }
+    string header_metadata(M)(
+      M  doc_matters,
+    ) {
+      string _publisher="Publisher"; // TODO
+      string o;
+      o = format(q"┃<!-- spine DocReform header metadata -->
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    <meta name="dc.title" content="%s" />
+    <meta name="dc.author" content="%s" />
+    <meta name="dc.publisher" content="%s" />
+    <meta name="dc.date" content="%s" />
+    <meta name="dc.date.created" content="%s" />
+    <meta name="dc.date.issued" content="%syear" />
+    <meta name="dc.date.available" content="%syear" />
+    <meta name="dc.date.valid" content="%syear" />
+    <meta name="dc.date.modified" content="%syear" />
+    <meta name="dc.language" content="%s" />
+    <meta name="dc.rights" content="%s" />
+    <meta name="generator" content="%s" />
+    <link rel="generator" href="%s" />
+    <!-- spine DocReform header metadata -->┃",
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
+        special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+        _publisher,
+        special_characters_date(doc_matters.conf_make_meta.meta.date_published),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_created),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_issued),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_available),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_valid),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_modified),
+        doc_matters.src.language,
+        special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
+        doc_matters.opt.action.generated_by ? special_characters_text(doc_matters.generator_program.name_and_version) : "",
+        special_characters_text(doc_matters.generator_program.url_home),
+      );
+      return o;
+    }
+    string site_info_button(M)(
+      M  doc_matters,
+    ) {
+      string _locations;
+      if (doc_matters.conf_make_meta.make.home_button_text.length > 0) {
+        _locations = (doc_matters.conf_make_meta.make.home_button_text)
+          .replaceAll(
+            rgx.inline_link,
+            ("<p class=\"tiny_left\"><a href=\"$2\" class=\"lnkicon\">$1</a></p>"))
+          .replaceAll(
+            rgx.br_line, "")
+          .replaceAll(
+            rgx.br_line_inline, "");
+      } else {
+         _locations = "<p class=\"icons\"><a href=\"https://www.doc-reform.org\" class=\"lnkicon\">spine</a></p>\n<p class=\"icons\"><a href=\"https://git.sisudoc.org/software/spine/\" class=\"lnkicon\">sources / git</a></p>\n<p class=\"icons\"><a href=\"https://www.sisudoc.org\" class=\"lnkicon\">www.sisudoc.org</a></p>";
+      }
+      string o;
+      o = format(q"┃<div class="flex-menu-option">
+          %s
+        </div>┃",
+        _locations,
+      );
+      return o;
+    }
+    string inline_search_form(M)(
+      M  doc_matters,
+    ) {
+      string o;
+      string _form;
+      if (doc_matters.opt.action.html_link_search) {
+        o = format(q"┃
+        <div class="flex-menu-option">
+          <!-- SiSU Spine Search -->
+          <form action="%s" target="_top" method="POST" accept-charset="UTF-8" id="searchtxt">
+          &nbsp;&nbsp;<font size="2">%s
+          <input type="text" name="sf" size="24" maxlength="255">%s
+          <input type="hidden" name="sml" value="1000">
+          <input type="hidden" name="ec" value="on">
+          <input type="hidden" name="url" value="on">
+          <input type="hidden" name="rt" value="txt">
+          <button type="submit" form="searchtxt" name="fn" value="%s">&nbsp;• ⚏&nbsp;</button>
+          </font></form>
+          <!-- SiSU Spine Search -->
+        </div>
+        <div class="flex-menu-option">
+          <!-- SiSU Spine Search -->
+          <form action="%s" target="_top" method="POST" accept-charset="UTF-8" id="searchidx">
+          &nbsp;&nbsp;<font size="2">
+          <input type="text" name="sf" size="24" maxlength="255">%s
+          <input type="hidden" name="sml" value="1000">
+          <input type="hidden" name="ec" value="on">
+          <input type="hidden" name="url" value="on">
+          <input type="hidden" name="rt" value="idx">
+          <button type="submit" form="searchidx" name="fn" value="%s">&nbsp;• ፨&nbsp;</button>
+          <button type="submit" form="searchidx">&nbsp;㏈ ፨</button>
+          </font></form>
+          <!-- SiSU Spine Search -->
+        </div>┃",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_action,
+        (doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename.empty)
+          ? ""
+          : "\n    <a href=\""
+            ~ doc_matters.conf_make_meta.conf.w_srv_cgi_action
+            ~ "\">&#x1f50e;&nbsp;</a>",
+        (doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename.empty)
+          ? ""
+          : "\n    <input type=\"hidden\" name=\"db\" value=\""
+            ~ doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename
+            ~ "\">",
+        doc_matters.src.filename_base,
+        doc_matters.conf_make_meta.conf.w_srv_cgi_action,
+        (doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename.empty)
+          ? ""
+          : "\n    <input type=\"hidden\" name=\"db\" value=\""
+            ~ doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename
+            ~ "\">",
+        doc_matters.src.filename_base,
+        );
+      } else {
+        o = "";
+      }
+      return o;
+    }
+    string html_head(M)(
+      M  doc_matters,
+      string type,
+    ) {
+      string o;
+      string metadata_links = ((doc_matters.opt.action.html_link_curate)
+        ? format(q"┃<p class="icons"><a href="%s" class="lnkicon">⟰&nbsp;</a>&nbsp;[<a href="%s" class="lnkicon">&nbsp;%s&nbsp;</a><a href="%sepub/%s.%s.epub" class="lnkicon">&nbsp;◆&nbsp;</a>%s%s<a href="%smetadata.%s.html" class="lnkicon">&nbsp;ℹ&nbsp;</a>]&nbsp;&nbsp;<a href="%s../../index.html" class="lnkicon">&nbsp;≅&nbsp;</a>|<a href="%s../../authors.html" class="lnkicon">&nbsp;&#x1F58B;&nbsp;</a>|<a href="%s../../topics.html" class="lnkicon">&nbsp;⌘&nbsp;</a>|</p>┃",
+            (doc_matters.opt.action.webserver_url_doc_root.length > 0)
+              ? doc_matters.opt.action.webserver_url_doc_root
+              : doc_matters.conf_make_meta.conf.w_srv_data_root_url
+              , // HOME index.html equivalent _cfg.www_url_doc_root,
+            (type == "seg")
+              ? "../" ~ doc_matters.src.filename_base ~ ".html"
+              : "./" ~ doc_matters.src.filename_base ~ "/toc.html",
+            (type == "seg") ? "▤" : "※",
+            (type == "seg") ? "../../" : "../",
+            doc_matters.src.filename_base,
+            doc_matters.src.lng,
+            (doc_matters.opt.action.html_link_pdf || doc_matters.opt.action.html_link_pdf_a4)
+            ? ("<a href=\""
+              ~ ((type == "seg") ? "../../../" : "../../")
+              ~ "pdf/"
+              ~ doc_matters.src.filename_base
+              ~  "."
+              ~ doc_matters.src.lng
+              ~ ".a4.portrait.pdf\" class=\"lnkicon\">&nbsp;□&nbsp;</a>")
+            : "",
+            (doc_matters.opt.action.html_link_pdf || doc_matters.opt.action.html_link_pdf_letter)
+            ? ("<a href=\""
+              ~ ((type == "seg") ? "../../../" : "../../")
+              ~ "pdf/"
+              ~ doc_matters.src.filename_base
+              ~  "."
+              ~ doc_matters.src.lng
+              ~ ".letter.portrait.pdf\" class=\"lnkicon\">&nbsp;□&nbsp;</a>")
+            : "",
+            (type == "seg") ? "../" : "",
+            doc_matters.src.filename_base,
+            (type == "seg") ? "../" : "",
+            (type == "seg") ? "../" : "",
+            (type == "seg") ? "../" : "",
+          )
+        : "");
+      o = format(q"┃<!DOCTYPE html>
+    <html>
+    <head>
+      <meta http-equiv="Content-Type" content="text/plain; charset=UTF-8" />
+      <title>
+        %s%s
+      </title>
+      <!-- metadata -->
+      %s
+      <!-- metadata -->
+      <link rel="generator" href="https://www.sisudoc.org/" />
+      <link rel="shortcut icon" href="%s../../image/dr.ico" />
+      <link href="%s" rel="stylesheet" />
+    </head>
+    <body lang="%s">
+    <a name="top" id="top"></a>
+    <div class='delimit headband'>
+      <div class="flex-menu-bar">
+        %s
+        <div class="flex-menu-option">
+          %s
+        </div>%s
+      </div>
+    </div>┃",
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
+        (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
+          : ", " ~ special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+        header_metadata(doc_matters),
+        ((type == "seg") ? "../" : ""),
+        ((type == "seg")
+          ? "../../../css/html_seg.css"
+          : "../../css/html_scroll.css"),
+        doc_matters.src.language,
+        site_info_button(doc_matters),
+        metadata_links,
+        inline_search_form(doc_matters),
+      );
+      return o;
+    }
+    string epub3_seg_head(M)(
+      M  doc_matters,
+    ) {
+      string html_base = format(q"┃<!DOCTYPE html>
+    <html>┃",
+    );
+      string html_simple = format(q"┃<!DOCTYPE html>
+    <html
+      xmlns="https://www.w3.org/1999/xhtml"
+      xmlns:epub="http://www.idpf.org/2007/ops"
+      lang="%s" xml:lang="%s">┃",
+        doc_matters.src.language,
+        doc_matters.src.language,
+      );
+      string html_strict = format(q"┃<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+         "https://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+    <html xmlns="https://www.w3.org/1999/xhtml"
+      xmlns:epub="http://www.idpf.org/2007/ops"
+      lang="%s" xml:lang="%s">┃",
+        doc_matters.src.language,
+        doc_matters.src.language,
+      );
+      string o;
+      o = format(q"┃%s
+    <head>
+      <title>
+        %s%s
+      </title>
+      <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+      <meta name="dc.title" content="%s" />
+      <meta name="dc.author" content="%s" />
+      <meta name="dc.publisher" content="FIX" />
+      <meta name="dc.date" content="%s" />
+      <meta name="dc.date.created" content="%s" />
+      <meta name="dc.date.issued" content="%s" />
+      <meta name="dc.date.available" content="%s" />
+      <meta name="dc.date.valid" content="%s" />
+      <meta name="dc.date.modified" content="%s" />
+      <meta name="dc.language" content="%s" />
+      <meta name="dc.rights" content="%s" />
+      <meta name="generator" content="%s" />
+      <link rel="generator" href="%s" />
+      <link rel="shortcut icon" href="../_dr/image/dr.ico" />
+      <link rel="stylesheet" href="Styles/epub.css" type="text/css" id="main-css" />
+    </head>
+    <body lang="%s">
+    <a name="top" id="top"></a>┃",
+        html_simple,
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
+        (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
+          : ", " ~ special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
+        (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
+          : ", " ~ special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+        special_characters_date(doc_matters.conf_make_meta.meta.date_published),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_created),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_issued),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_available),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_valid),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_modified),
+        doc_matters.src.language,
+        special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
+        special_characters_text(doc_matters.generator_program.name_and_version),
+        special_characters_text(doc_matters.generator_program.url_home),
+        doc_matters.src.language,
+      );
+      return o;
+    }
+string dom_close() {
+  string o;
+  o = format(q"┃</div>┃");
+  return o;
+}
+string tail(M)(M doc_matters) {
+  string o;
+  o = format(q"┃<hr />
+  <div class="rights">
+    <p class="small" id="copyright"><a name="copyright"></a>
+      <b>Copyright:</b> %s
+    </p>
+  </div>
+  %s
+  <div class="rights">
+    <p class="small" id="rights"><a name="rights"></a>
+      %s
+    </p>
+  </div>
+  <hr />
+  <div class="generator">
+    <p class="small_center" id="sisu_spine"><a name="sisu_spine"></a>
+      <a href="https://sisudoc.org" class="lnkicon">≅ SiSU Spine ፨</a> (object numbering &amp; object search)
+    </p>
+    <p class="small_center" id="sisu_spine"><a name="sisu_spine"></a>
+      (web 1993, object numbering 1997, object search 2002 ...) 2024
+    </p>
+  </div>
+  <a name="bottom" id="bottom"></a>
+  <a name="end" id="end"></a>
+</body>
+</html>
+┃",
+    special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
+    ((doc_matters.conf_make_meta.meta.rights_license).empty) ? "" : "<br />",
+    ((doc_matters.conf_make_meta.meta.rights_license).empty) ? ""
+      : "<b>License:</b> " ~ special_characters_text(doc_matters.conf_make_meta.meta.rights_license)
+  );
+  return o;
+}
+    string inline_images(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix    = ".html",
+      string          _xml_type = "seg",
+    ) {
+      string _img_pth;
+      switch (_xml_type) {
+      case "epub":   _img_pth = "image/";                           break;
+      case "scroll": _img_pth = format(q"┃%s/image/┃", "../..");    break;
+      case "seg":    _img_pth = format(q"┃%s/image/┃", "../../.."); break;
+      default:                                                      break;
+      }
+      if (_txt.match(rgx.inline_image)) {
+        _txt = _txt
+          .replaceAll(rgx.inline_image,
+            ("$1<img src=\""
+              ~ _img_pth
+              ~ "$3\" width=\"$4\" height=\"$5\" naturalsizeflag=\"0\" align=\"bottom\" border=\"0\" /> $6"))
+          .replaceAll(
+            rgx.inline_link_empty,
+            ("$1"));
+      }
+      return _txt;
+    }
+    string inline_links(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string         _suffix   = ".html",
+      string         _xml_type = "seg",
+    ) {
+      string seg_lvs;
+      if (obj.has.inline_links) {
+        if  (obj.metainfo.is_a != "code") {
+          _txt = replaceAll!(m =>
+              m[1] ~ "┤"
+              ~ (replaceAll!(n =>
+                  n["type"] ~ n["path"] ~ (n["file"].encodeComponent)
+                )((obj.stow.link[m["num"].to!ulong]).to!string, rgx.uri_identify_components))
+              ~ "├"
+            )(_txt, rgx.inline_link_number_only);
+        }
+        if ((_txt.match(rgx.mark_internal_site_lnk))
+        && (_xml_type == "scroll")) { // conditions reversed to avoid: gdc compiled program run segfault
+          _txt = _txt.replaceAll(
+            rgx.inline_seg_link,
+            "$1");
+        }
+        if (_xml_type == "seg" || _xml_type == "epub") {
+          seg_lvs = (_xml_type == "epub") ? "seg_lv1to4" : "seg_lv4";
+          foreach (m; _txt.match(rgx.inline_link_hash)) {
+            if (m.captures["hash"] in doc_matters.has.tag_associations) {
+              if (
+                m.captures["hash"]
+                == doc_matters.has.tag_associations[(m.captures["hash"])][seg_lvs]
+              ) {
+                _txt = _txt.replaceFirst(
+                  rgx.inline_link_hash,
+                  "┥$1┝┤$3" ~ _suffix ~ "├"
+                );
+              } else {
+                _txt = _txt.replaceFirst(
+                  rgx.inline_link_hash,
+                  "┥$1┝┤"
+                  ~ doc_matters.has.tag_associations[(m.captures["hash"])][seg_lvs]
+                  ~ _suffix ~ "#" ~ "$3"
+                  ~ "├"
+                );
+              }
+            } else {
+              if (doc_matters.opt.action.vox_gt0) {
+                writeln(
+                  "WARNING on internal document links, anchor to link <<"
+                   ~ m.captures["hash"]
+                   ~ ">> not found in document, "
+                   ~ "anchor: " ~ m.captures["hash"]
+                   ~ " document: " ~ doc_matters.src.filename
+                );
+              }
+            }
+          }
+        }
+        _txt = _txt
+          .replaceAll(
+            rgx.inline_link_fn_suffix,
+            ("$1" ~ _suffix))
+          .replaceAll(
+            rgx.inline_link,
+            ("<a href=\"$2\">$1</a>"))
+          .replaceAll(
+            rgx.mark_internal_site_lnk,
+            "");
+      }
+      debug(markup_links) {
+        if (_txt.match(rgx.inline_link)) {
+          writeln(__LINE__,
+            " (missed) markup link identified (",
+            obj.has.inline_links,
+            "): ", obj.metainfo.is_a, ": ",
+            obj.text
+          );
+        }
+      }
+      debug(markup) {
+        if (_txt.match(rgx.inline_link)) {
+          writeln(__LINE__,
+            " (missed) markup link identified (",
+            obj.has.inline_links,
+            "): ", obj.metainfo.is_a, ": ",
+            obj.text
+          );
+        }
+      }
+      return _txt;
+    }
+    string inline_notes_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+    ) {
+      if (obj.has.inline_notes_reg) {
+        _txt = font_face(_txt);
+        _txt = _txt.replaceAll(
+          rgx.inline_notes_al_regular_number_note,
+          ("<a href=\"#note_$1\"><note id=\"noteref_$1\">&#160;<sup>$1</sup> </note></a>")
+        );
+      }
+      if (obj.has.inline_notes_star) {
+        _txt = font_face(_txt);
+        _txt = _txt.replaceAll(
+          rgx.inline_notes_al_special_char_note,
+          ("<a href=\"#note_$1\"><note id=\"noteref_$1\">&#160;<sup>$1</sup> </note></a>")
+        );
+      }
+      debug(markup_endnotes) {
+        if (_txt.match(rgx.inline_notes_al_regular_number_note)) {
+          writeln(__LINE__, " (missed) markup endnote: ", obj.metainfo.is_a, ": ", obj.text);
+        }
+      }
+      debug(markup) {
+        if (_txt.match(rgx.inline_notes_al_regular_number_note)) {
+          writeln(__LINE__, " (missed) markup endnote: ", obj.metainfo.is_a, ": ", obj.text);
+        }
+      }
+      return _txt;
+    }
+    Tuple!(string, string[]) inline_notes_seg(O,M)(
+                string  _txt,
+      const     O       obj,
+                M       doc_matters,
+    ) {
+      string[] _endnotes;
+      if (obj.has.inline_notes_star) {
+        _txt = font_face(_txt);
+        /+ need markup for text, and separated footnote +/
+        foreach(m; _txt.matchAll(rgx.inline_notes_al_special_char_note)) {
+          _endnotes ~= format(
+            "%s%s%s%s\n  %s%s%s%s%s %s\n%s",
+            "<p class=\"endnote\">",
+            "<a href=\"#noteref_",
+            m.captures[1],
+            "\">",
+            "<note id=\"note_",
+            m.captures[1],
+            "\">&#160;<sup>",
+            m.captures[1],
+            ".</sup></note></a>",
+            m.captures[2],
+            "</p>"
+          );
+        }
+        _txt = _txt.replaceAll(
+          rgx.inline_notes_al_special_char_note,
+          ("<a href=\"#note_$1\"><note id=\"noteref_$1\">&#160;<sup>$1</sup> </note></a>")
+        );
+      }
+      if (obj.has.inline_notes_reg) {
+        _txt = font_face(_txt);
+        /+ need markup for text, and separated footnote +/
+        foreach(m; _txt.matchAll(rgx.inline_notes_al_regular_number_note)) {
+          _endnotes ~= format(
+            "%s%s%s%s\n  %s%s%s%s%s %s\n%s",
+            "<p class=\"endnote\">",
+            "<a href=\"#noteref_",
+            m.captures[1],
+            "\">",
+            "<note id=\"note_",
+            m.captures[1],
+            "\">&#160;<sup>",
+            m.captures[1],
+            ".</sup></note></a>",
+            m.captures[2],
+            "</p>"
+          );
+        }
+        _txt = _txt.replaceAll(
+          rgx.inline_notes_al_regular_number_note,
+          ("<a href=\"#note_$1\"><note id=\"noteref_$1\">&#160;<sup>$1</sup> </note></a>")
+        );
+      } else if (_txt.match(rgx.inline_notes_al_regular_number_note)) {
+        debug(markup) {
+          writeln(__LINE__, " endnote: ", obj.metainfo.is_a, ": ", obj.text);
+        }
+      }
+      Tuple!(string, string[]) t = tuple(
+        _txt,
+        _endnotes,
+      );
+      return t;
+    }
+    string inline_markup_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+    ) {
+      if (obj.metainfo.dummy_heading
+        && (obj.metainfo.is_a == "toc" || obj.metainfo.is_a == "heading")) {
+        _txt = "";
+      } else {
+        _txt = inline_images(_txt, obj, doc_matters, _suffix, "scroll");
+        _txt = inline_links(_txt, obj, doc_matters, _suffix, "scroll");
+        _txt = inline_notes_scroll(_txt, obj, doc_matters);
+      }
+      return _txt;
+    }
+    Tuple!(string, string[]) inline_markup_seg(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "seg",
+    ) {
+      if (obj.metainfo.dummy_heading
+        && ((_xml_type == "epub"
+        && (obj.metainfo.is_a == "toc" || obj.metainfo.is_a == "heading"))
+        || obj.metainfo.is_a == "heading")
+      ) {
+        _txt = "";
+      } else {
+        _txt = inline_images(_txt, obj, doc_matters, _suffix, _xml_type); // TODO
+        _txt = inline_links(_txt, obj, doc_matters, _suffix, _xml_type); // TODO
+      }
+      Tuple!(string, string[]) t = inline_notes_seg(_txt, obj, doc_matters);
+      return t;
+    }
+    string lev4_heading_subtoc(O,M)(
+      const        O  obj,
+                   M  doc_matters,
+    ) {
+      char[] lev4_subtoc;
+      lev4_subtoc ~= "  <div class=\"nav\">\n";
+      foreach (subtoc; obj.tags.lev4_subtoc) {
+        if (auto m = subtoc.match(rgx.inline_link_subtoc)) {
+          auto indent = (m.captures[1].to!int - 3).to!string; // css assumptions based on use of em for left margin & indent
+          auto text = m.captures[2].to!string;
+          text = font_face(text);
+          auto link = m.captures[3].to!string;
+          lev4_subtoc ~= subtoc.replaceFirst(rgx.inline_link_subtoc,
+            format(q"┃    <p class="minitoc" indent="h%si%s">
+          ۰ <a href="%s">%s</a>
+        </p>
+    ┃",
+              indent,
+              indent,
+              link,
+              text,
+          ));
+        }
+      }
+      lev4_subtoc ~= "  </div>\n";
+      return lev4_subtoc.to!string;
+    }
+    auto nav_pre_next_svg(O,M)(
+      const        O  obj,
+                   M  doc_matters,
+    ) {
+      string prev, next, toc;
+      if (obj.tags.segment_anchor_tag_epub == "toc") {
+        toc = "";
+        prev = "";
+      } else {
+        toc = format(q"┃<a href="toc.html" target="_top">
+              <div class="toc-button menu">
+                <svg viewbox="0 0 100 100">
+                  <path d="M4,10h24c1.104,0,2-0.896,2-2s-0.896-2-2-2H4C2.896,6,2,6.896,2,8S2.896,10,4,10z M28,14H4c-1.104,0-2,0.896-2,2  s0.896,2,2,2h24c1.104,0,2-0.896,2-2S29.104,14,28,14z M28,22H4c-1.104,0-2,0.896-2,2s0.896,2,2,2h24c1.104,0,2-0.896,2-2  S29.104,22,28,22z" />
+                </svg>
+              </div>
+            </a>┃",
+        );
+      }
+      if (obj.tags.segname_prev == "") {
+        prev = "";
+      } else {
+        prev = format(q"┃<a href="%s.html" target="_top">
+              <div class="prev-next-button previous">
+                <svg viewbox="0 0 100 100">
+                  <path class="arrow" d="M 50,0 L 60,10 L 20,50 L 60,90 L 50,100 L 0,50 Z" transform=" translate(15,0)" />
+                </svg>
+              </div>
+            </a>┃",
+          obj.tags.segname_prev,
+        );
+      }
+      if (obj.tags.segname_next == "") {
+        next = "";
+      } else {
+        next = format(q"┃<a href="%s.html" target="_top">
+              <div class="prev-next-button next">
+                <svg viewbox="0 0 100 100">
+                  <path class="arrow" d="M 50,0 L 60,10 L 20,50 L 60,90 L 50,100 L 0,50 Z" transform="translate(85,100) rotate(180)" />
+                </svg>
+              </div>
+            </a>┃",
+          obj.tags.segname_next,
+        );
+      }
+      string _toc_pre_next = format(q"┃    <div class="nav-bar">
+      %s
+      %s
+      %s
+    </div>┃",
+        toc,
+        prev,
+        next,
+      );
+      string _pre_next = format(q"┃    <div class="nav-bar">
+      %s
+      %s
+    </div>┃",
+        prev,
+        next,
+      );
+      struct bar {
+        string toc_pre_next() {
+          return _toc_pre_next;
+        }
+        string pre_next() {
+          return _pre_next;
+        }
+      }
+      return bar();
+    }
+    string heading(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+      string            _xml_type = "html",
+    ) {
+      assert(obj.metainfo.is_of_part    == "body" || "frontmatter" || "backmatter");
+      assert(obj.metainfo.is_of_section == "body" || "toc" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "para");
+      assert(obj.metainfo.is_a          == "heading");
+      string tags = _xhtml_anchor_tags(obj);
+      string heading_lev_anchor_tag;
+      string _horizontal_rule = "<hr />";
+      if ((_xml_type != "html")
+      || (obj.metainfo.heading_lev_markup == 0 || obj.metainfo.heading_lev_markup > 4)) {
+        _horizontal_rule = "";
+      }
+      _txt = font_face(_txt);
+      string o;
+      heading_lev_anchor_tag = (obj.tags.heading_lev_anchor_tag.empty)
+        ? ""
+        : "<a name=\"" ~ obj.tags.heading_lev_anchor_tag ~ "\"></a>";
+      if (_txt.empty) {
+        o = format(q"┃%s
+      ┃",
+        _horizontal_rule,
+        );
+      } else {
+        o = "";
+        if (obj.metainfo.is_of_section == "toc") {
+          o ~= format(q"┃
+      <div class="substance">
+        <p class="small" id="copyright"><a name="copyright"></a>
+          Copyright: %s
+        </p>
+        <!-- <p class="small" id="rights"><a name="rights"></a>
+          %s
+        </p> -->
+      </div>┃",
+            special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
+            special_characters_text(doc_matters.conf_make_meta.meta.rights_license)
+          );
+        }
+      }
+        if (!(obj.metainfo.identifier.empty)) {
+          o ~= format(q"┃%s
+      <div class="substance">
+        <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+        <h%s class="%s" id="%s"><a name="%s"></a>%s%s
+          %s
+        </h%s>
+      </div>┃",
+            _horizontal_rule,
+            obj.metainfo.identifier,
+            (doc_matters.opt.action.ocn_off)
+              ? "" : ((obj.metainfo.object_number.empty)
+                ? "" : obj.metainfo.identifier),
+            ((_xml_type == "epub" && obj.metainfo.heading_lev_markup == 0) ? 1
+            : obj.metainfo.heading_lev_markup),
+            obj.metainfo.is_a,
+            obj.metainfo.identifier,
+            obj.metainfo.identifier,
+            tags,
+            heading_lev_anchor_tag,
+            _txt,
+            ((_xml_type == "epub" && obj.metainfo.heading_lev_markup == 0) ? 1
+            : obj.metainfo.heading_lev_markup),
+          );
+        } else {
+          o ~= format(q"┃%s
+      <div class="substance">
+        <h%s class="%s">%s%s
+          %s
+        </h%s>
+      </div>┃",
+            _horizontal_rule,
+            ((_xml_type == "epub" && obj.metainfo.heading_lev_markup == 0) ? 1
+            : obj.metainfo.heading_lev_markup),
+            obj.metainfo.is_a,
+            tags,
+            heading_lev_anchor_tag,
+            _txt,
+            ((_xml_type == "epub" && obj.metainfo.heading_lev_markup == 0) ? 1
+            : obj.metainfo.heading_lev_markup),
+          );
+        }
+      return o;
+    }
+    string heading_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+    ) {
+      _txt = inline_markup_scroll(_txt, obj, doc_matters, _suffix);
+      string o = heading(_txt, obj, doc_matters);
+      return o;
+    }
+    Tuple!(string, string[]) heading_seg(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      _txt = t[0];
+      string[] _endnotes = t[1];
+      string o = heading(_txt, obj, doc_matters, _xml_type);
+      Tuple!(string, string[]) u = tuple(
+        o,
+        _endnotes,
+      );
+      return u;
+    }
+    string para(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body" || "frontmatter" || "backmatter");
+      assert(obj.metainfo.is_of_section == "body" || "toc" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "para");
+      assert(obj.metainfo.is_a          == "para" || "toc" || "endnote" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      string tags = _xhtml_anchor_tags(obj);
+      _txt = font_face(_txt);
+      string o;
+      _txt = (obj.attrib.bullet) ? ("●&#160;&#160;" ~ _txt) : _txt;
+      _txt = _txt.replaceFirst(rgx.inline_link_anchor,
+         "<a name=\"$1\"></a>");
+      if (!(obj.metainfo.identifier.empty)) {
+        o = format(q"┃  <div class="substance">
+      <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+      <p class="%s" indent="h%si%s" id="%s">%s
+        %s
+      </p>
+    </div>┃",
+          obj.metainfo.identifier,
+          (doc_matters.opt.action.ocn_off)
+          ? ""
+          : ((obj.metainfo.object_number.empty)
+            ? ""
+            : obj.metainfo.identifier),
+          obj.metainfo.is_a,
+          obj.attrib.indent_hang,
+          obj.attrib.indent_base,
+          obj.metainfo.identifier,
+          tags,
+          _txt
+        );
+      } else {
+        o = format(q"┃  <div class="substance">
+      <p class="%s" indent="h%si%s">%s
+        %s
+      </p>
+    </div>┃",
+          obj.metainfo.is_a,
+          obj.attrib.indent_hang,
+          obj.attrib.indent_base,
+          tags,
+          _txt
+        );
+      }
+      return o;
+    }
+    string para_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+    ) {
+      if (obj.metainfo.is_a == "toc" && _txt.match(rgx.inline_link_toc_to_backmatter)) {
+        _txt = _txt.replaceAll(rgx.inline_link_toc_to_backmatter, "┤#section_$1├");
+      }
+      _txt = inline_markup_scroll(_txt, obj, doc_matters, _suffix);
+      string o = para(_txt, obj, doc_matters);
+      return o;
+    }
+    Tuple!(string, string[]) para_seg(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      _txt = t[0].to!string;
+      string[] _endnotes = t[1];
+      string o = para(_txt, obj, doc_matters);
+      Tuple!(string, string[]) u = tuple(
+        o,
+        _endnotes,
+      );
+      return u;
+    }
+    string quote(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "quote");
+      _txt = font_face(_txt);
+      string o;
+      if (!(obj.metainfo.identifier.empty)) {
+        o = format(q"┃  <div class="substance">
+      <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+      <p class="%s" id="%s">
+        %s
+      </p>
+    </div>┃",
+          obj.metainfo.identifier,
+          (doc_matters.opt.action.ocn_off) ? "" : ((obj.metainfo.object_number.empty) ? "" : obj.metainfo.identifier),
+          obj.metainfo.is_a,
+          obj.metainfo.identifier,
+          _txt
+        );
+      } else {
+        o = format(q"┃  <div class="substance">
+      <p class="%s">
+        %s
+      </p>
+    </div>┃",
+          obj.metainfo.is_a,
+          _txt
+        );
+      }
+      return o;
+    }
+    string quote_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+    ) {
+      _txt = inline_markup_scroll(_txt, obj, doc_matters, _suffix);
+      string o = quote(_txt, obj, doc_matters);
+      return o;
+    }
+    Tuple!(string, string[]) quote_seg(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      _txt = t[0].to!string;
+      string[] _endnotes = t[1];
+      string o = quote(_txt, obj, doc_matters);
+      Tuple!(string, string[]) u = tuple(
+        o,
+        _endnotes,
+      );
+      return u;
+    }
+    string group(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "group");
+      _txt = font_face(_txt);
+      string o;
+      if (!(obj.metainfo.identifier.empty)) {
+        o = format(q"┃  <div class="substance">
+      <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+      <p class="%s" id="%s">
+        %s
+      </p>
+    </div>┃",
+          obj.metainfo.identifier,
+          (doc_matters.opt.action.ocn_off) ? ""
+          : ((obj.metainfo.object_number.empty) ? ""
+            : obj.metainfo.identifier),
+          obj.metainfo.is_a,
+          obj.metainfo.identifier,
+          _txt
+        );
+      } else {
+        o = format(q"┃  <div class="substance">
+      <p class="%s">
+        %s
+      </p>
+    </div>┃",
+          obj.metainfo.is_a,
+          _txt
+        );
+      }
+      return o;
+    }
+    string group_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      _txt = inline_markup_scroll(_txt, obj, doc_matters, _suffix);
+      string o = group(_txt, obj, doc_matters);
+      return o;
+    }
+    Tuple!(string, string[]) group_seg(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      _txt = t[0].to!string;
+      string[] _endnotes = t[1];
+      string o = group(_txt, obj, doc_matters);
+      Tuple!(string, string[]) u = tuple(
+        o,
+        _endnotes,
+      );
+      return u;
+    }
+    string block(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "block");
+      _txt = font_face(_txt);
+      string o;
+      if (!(obj.metainfo.identifier.empty)) {
+        o = format(q"┃  <div class="substance">
+      <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+      <p class="%s" id="%s">%s</p>
+    </div>┃",
+          obj.metainfo.identifier,
+          (doc_matters.opt.action.ocn_off) ? ""
+          : ((obj.metainfo.object_number.empty) ? ""
+            : obj.metainfo.identifier),
+          obj.metainfo.is_a,
+          obj.metainfo.identifier,
+          _txt.stripRight
+        );
+      } else {
+        o = format(q"┃  <div class="substance">
+      <p class="%s">%s</p>
+    </div>┃",
+          obj.metainfo.is_a,
+          _txt.stripRight
+        );
+      }
+      return o;
+    }
+    string block_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      _txt = inline_markup_scroll(_txt, obj, doc_matters, _suffix);
+      string o = block(_txt, obj, doc_matters);
+      return o;
+    }
+    Tuple!(string, string[]) block_seg(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      _txt = t[0].to!string;
+      string[] _endnotes = t[1];
+      string o = block(_txt, obj, doc_matters);
+      Tuple!(string, string[]) u = tuple(
+        o,
+        _endnotes,
+      );
+      return u;
+    }
+    string verse(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body" || "glossary" || "bibliography" || "bookindex" || "blurb");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "verse");
+      _txt = font_face(_txt);
+      string o;
+      if (!(obj.metainfo.identifier.empty)) {
+        o = format(q"┃  <div class="substance">
+          <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+          <p class="%s" id="%s">%s</p>
+        </div>┃",
+          obj.metainfo.identifier,
+          (doc_matters.opt.action.ocn_off) ? "" : ((obj.metainfo.object_number.empty) ? "" : obj.metainfo.identifier),
+          obj.metainfo.is_a,
+          obj.metainfo.identifier,
+          _txt
+        );
+      } else {
+        o = format(q"┃  <div class="substance">
+          <p class="%s">%s</p>
+        </div>┃",
+          obj.metainfo.is_a,
+          _txt
+        );
+      }
+      return o;
+    }
+    string verse_scroll(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      _txt = inline_markup_scroll(_txt, obj, doc_matters, _suffix);
+      string o = verse(_txt, obj, doc_matters);
+      return o;
+    }
+    Tuple!(string, string[]) verse_seg(O,M)(
+      string          _txt,
+      const        O  obj,
+                   M  doc_matters,
+      string          _suffix = ".html",
+      string          _xml_type = "html",
+    ) {
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      _txt = t[0].to!string;
+      string[] _endnotes = t[1];
+      string o = verse(_txt, obj, doc_matters);
+      Tuple!(string, string[]) u = tuple(
+        o,
+        _endnotes,
+      );
+      return u;
+    }
+    Tuple!(string, string) tablarize(O)(
+      string            _txt,
+      const        O    obj,
+    ) {
+      string[] _table_rows = (_txt).split(rgx.table_delimiter_row);
+      string[] _table_cols;
+      string _table;
+      string _tablenote;
+      foreach(row_idx, row; _table_rows) {
+        _table_cols = row.split(rgx.table_delimiter_col);
+        _table ~= "<tr>";
+        foreach(col_idx, cell; _table_cols) {
+          if ((_table_cols.length == 1)
+          && (_table_rows.length <= row_idx+2)) {
+            _tablenote ~= cell;
+          } else {
+            string _col_is = (row_idx == 0 && obj.table.heading) ? "th" : "td";
+            string _align = ("style=\"text-align:"
+            ~ ((obj.table.column_aligns[col_idx] == "l")
+            ? "left\"" : "right\""));
+            _table ~= "<" ~ _col_is ~ " width=\"" ~ obj.table.column_widths[col_idx].to!string ~ "%\" " ~ _align ~ ">";
+            _table ~= cell;
+            _table ~= "</" ~ _col_is ~ ">";
+          }
+        }
+        _table ~= "</tr>";
+      }
+      Tuple!(string, string) t = tuple(
+        _table,
+        _tablenote,
+      );
+      return t;
+    }
+    string table(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "table");
+      string tags = _xhtml_anchor_tags(obj);
+      _txt = font_face(_txt);
+      auto t = tablarize(_txt, obj);
+      _txt = t[0];
+      string _note = t[1];
+      string o;
+      o = format(q"┃  <div class="substance">
+      <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+      <p class="%s" id="%s">%s
+        <table summary="normal text css" width="95%%" border="0" cellpadding="2" align="center">
+          %s
+        </table>
+        %s
+      </p>
+    </div>┃",
+        obj.metainfo.object_number,
+        (doc_matters.opt.action.ocn_off) ? "" : ((obj.metainfo.object_number.empty) ? "" : obj.metainfo.identifier),
+        obj.metainfo.is_a,
+        obj.metainfo.object_number,
+        tags,
+        _txt,
+        _note
+      );
+      return o;
+    }
+    string code(O,M)(
+            string _txt,
+      const O      obj,
+            M      doc_matters,
+    ) {
+      assert(obj.metainfo.is_of_part    == "body");
+      assert(obj.metainfo.is_of_section == "body");
+      assert(obj.metainfo.is_of_type    == "block");
+      assert(obj.metainfo.is_a          == "code");
+      string o;
+      string codelines(string _txt) {
+        string _codelines;
+        if (obj.code_block.linenumbers) {
+          string[] _block_lines = (_txt).split(rgx.br_linebreaks_newlines);
+          _codelines = "  <pre class=\"codeline\">\n";
+          foreach (k, _line; _block_lines) {
+            if (k == 1) {
+              _codelines ~= format(q"┃    <span class="tr first-row"><span class="th"></span><codeline>%s</codeline></span>
+    ┃",
+                _line,
+              );
+            } else {
+              _codelines ~= format(q"┃    <span class="tr"><span class="th"></span><codeline>%s</codeline></span>
+    ┃",
+                _line,
+              );
+            }
+          }
+          _codelines ~= "  </pre>";
+        } else {
+          _codelines = "  <pre class=\"codeline\">\n";
+          _codelines ~= _txt;
+          _codelines ~= "  </pre>";
+        }
+        return _codelines;
+      }
+      if (!(obj.metainfo.identifier.empty)) {
+        o = format(q"┃  <div class="substance">
+      <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
+      <p class="%s" id="%s">%s</p>
+    </div>┃",
+          obj.metainfo.identifier,
+          (doc_matters.opt.action.ocn_off) ? "" : ((obj.metainfo.object_number.empty) ? "" : obj.metainfo.identifier),
+          obj.metainfo.is_a,
+          obj.metainfo.identifier,
+          codelines(_txt)
+        );
+      } else {
+        o = format(q"┃  <div class="substance">
+      <p class="%s">%s</p>
+    </div>┃",
+          obj.metainfo.is_a,
+          codelines(_txt)
+        );
+      }
+      return o;
+    }
+  }
+}
diff --git a/src/sisudoc/io_out/xmls_css.d b/src/sisudoc/io_out/xmls_css.d
new file mode 100644
index 0000000..e9f38e6
--- /dev/null
+++ b/src/sisudoc/io_out/xmls_css.d
@@ -0,0 +1,4451 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  default css settings
++/
+module sisudoc.io_out.xmls_css;
+@safe:
+template spineCss() {
+  import std.format;
+  auto spineCss(M)(M doc_matters) {
+  string _css_indent = format(q"┃
+/* indent */
+p.norm { }
+p.i1 { padding-left        : 1em; }
+p.i2 { padding-left        : 2em; }
+p.i3 { padding-left        : 3em; }
+p.i4 { padding-left        : 4em; }
+p.i5 { padding-left        : 5em; }
+p.i6 { padding-left        : 6em; }
+p.i7 { padding-left        : 7em; }
+p.i8 { padding-left        : 8em; }
+p.i9 { padding-left        : 9em; }
+/* hanging indent */
+p[indent="h0i0"] {
+  padding-left             : 0em;
+  text-indent              : 0em;
+}
+p[indent="h0i1"] {
+  padding-left             : 1em;
+  text-indent              : -1em;
+}
+p[indent="h0i2"] {
+  padding-left             : 2em;
+  text-indent              : -2em;
+}
+p[indent="h0i3"] {
+  padding-left             : 3em;
+  text-indent              : -3em;
+}
+p[indent="h0i4"] {
+  padding-left             : 4em;
+  text-indent              : -4em;
+}
+p[indent="h0i5"] {
+  padding-left             : 5em;
+  text-indent              : -5em;
+}
+p[indent="h0i6"] {
+  padding-left             : 6em;
+  text-indent              : -6em;
+}
+p[indent="h0i7"] {
+  padding-left             : 7em;
+  text-indent              : -7em;
+}
+p[indent="h0i8"] {
+  padding-left             : 8em;
+  text-indent              : -8em;
+}
+p[indent="h0i9"] {
+  padding-left             : 9em;
+  text-indent              : -9em;
+}
+p[indent="h1i0"] {
+  padding-left             : 0em;
+  text-indent              : 1em;
+}
+p[indent="h1i1"] {
+  padding-left             : 1em;
+  text-indent              : 0em;
+}
+p[indent="h1i2"] {
+  padding-left             : 2em;
+  text-indent              : -1em;
+}
+p[indent="h1i3"] {
+  padding-left             : 3em;
+  text-indent              : -2em;
+}
+p[indent="h1i4"] {
+  padding-left             : 4em;
+  text-indent              : -3em;
+}
+p[indent="h1i5"] {
+  padding-left             : 5em;
+  text-indent              : -4em;
+}
+p[indent="h1i6"] {
+  padding-left             : 6em;
+  text-indent              : -5em;
+}
+p[indent="h1i7"] {
+  padding-left             : 7em;
+  text-indent              : -6em;
+}
+p[indent="h1i8"] {
+  padding-left             : 8em;
+  text-indent              : -7em;
+}
+p[indent="h1i9"] {
+  padding-left             : 9em;
+  text-indent              : -8em;
+}
+p[indent="h2i0"] {
+  padding-left             : 0em;
+  text-indent              : 2em;
+}
+p[indent="h2i1"] {
+  padding-left             : 1em;
+  text-indent              : 1em;
+}
+p[indent="h2i2"] {
+  padding-left             : 2em;
+  text-indent              : 0em;
+}
+p[indent="h2i3"] {
+  padding-left             : 3em;
+  text-indent              : -1em;
+}
+p[indent="h2i4"] {
+  padding-left             : 4em;
+  text-indent              : -2em;
+}
+p[indent="h2i5"] {
+  padding-left             : 5em;
+  text-indent              : -3em;
+}
+p[indent="h2i6"] {
+  padding-left             : 6em;
+  text-indent              : -4em;
+}
+p[indent="h2i7"] {
+  padding-left             : 7em;
+  text-indent              : -5em;
+}
+p[indent="h2i8"] {
+  padding-left             : 8em;
+  text-indent              : -6em;
+}
+p[indent="h2i9"] {
+  padding-left             : 9em;
+  text-indent              : -7em;
+}
+p[indent="h3i0"] {
+  padding-left             : 0em;
+  text-indent              : 3em;
+}
+p[indent="h3i1"] {
+  padding-left             : 1em;
+  text-indent              : 2em;
+}
+p[indent="h3i2"] {
+  padding-left             : 2em;
+  text-indent              : 1em;
+}
+p[indent="h3i3"] {
+  padding-left             : 3em;
+  text-indent              : 0em;
+}
+p[indent="h3i4"] {
+  padding-left             : 4em;
+  text-indent              : -1em;
+}
+p[indent="h3i5"] {
+  padding-left             : 5em;
+  text-indent              : -2em;
+}
+p[indent="h3i6"] {
+  padding-left             : 6em;
+  text-indent              : -3em;
+}
+p[indent="h3i7"] {
+  padding-left             : 7em;
+  text-indent              : -4em;
+}
+p[indent="h3i8"] {
+  padding-left             : 8em;
+  text-indent              : -5em;
+}
+p[indent="h3i9"] {
+  padding-left             : 9em;
+  text-indent              : -6em;
+}
+p[indent="h4i0"] {
+  padding-left             : 0em;
+  text-indent              : 4em;
+}
+p[indent="h4i1"] {
+  padding-left             : 1em;
+  text-indent              : 3em;
+}
+p[indent="h4i2"] {
+  padding-left             : 2em;
+  text-indent              : 2em;
+}
+p[indent="h4i3"] {
+  padding-left             : 3em;
+  text-indent              : 1em;
+}
+p[indent="h4i4"] {
+  padding-left             : 4em;
+  text-indent              : 0em;
+}
+p[indent="h4i5"] {
+  padding-left             : 5em;
+  text-indent              : -1em;
+}
+p[indent="h4i6"] {
+  padding-left             : 6em;
+  text-indent              : -2em;
+}
+p[indent="h4i7"] {
+  padding-left             : 7em;
+  text-indent              : -3em;
+}
+p[indent="h4i8"] {
+  padding-left             : 8em;
+  text-indent              : -4em;
+}
+p[indent="h4i9"] {
+  padding-left             : 9em;
+  text-indent              : -5em;
+}
+p[indent="h5i0"] {
+  padding-left             : 0em;
+  text-indent              : 5em;
+}
+p[indent="h5i1"] {
+  padding-left             : 1em;
+  text-indent              : 4em;
+}
+p[indent="h5i2"] {
+  padding-left             : 2em;
+  text-indent              : 3em;
+}
+p[indent="h5i3"] {
+  padding-left             : 3em;
+  text-indent              : 2em;
+}
+p[indent="h5i4"] {
+  padding-left             : 4em;
+  text-indent              : 1em;
+}
+p[indent="h5i5"] {
+  padding-left             : 5em;
+  text-indent              : 0em;
+}
+p[indent="h5i6"] {
+  padding-left             : 6em;
+  text-indent              : -1em;
+}
+p[indent="h5i7"] {
+  padding-left             : 7em;
+  text-indent              : -2em;
+}
+p[indent="h5i8"] {
+  padding-left             : 8em;
+  text-indent              : -3em;
+}
+p[indent="h5i9"] {
+  padding-left             : 9em;
+  text-indent              : -4em;
+}
+p[indent="h6i0"] {
+  padding-left             : 0em;
+  text-indent              : 6em;
+}
+p[indent="h6i1"] {
+  padding-left             : 1em;
+  text-indent              : 5em;
+}
+p[indent="h6i2"] {
+  padding-left             : 2em;
+  text-indent              : 4em;
+}
+p[indent="h6i3"] {
+  padding-left             : 3em;
+  text-indent              : 3em;
+}
+p[indent="h6i4"] {
+  padding-left             : 4em;
+  text-indent              : 2em;
+}
+p[indent="h6i5"] {
+  padding-left             : 5em;
+  text-indent              : 1em;
+}
+p[indent="h6i6"] {
+  padding-left             : 6em;
+  text-indent              : 0em;
+}
+p[indent="h6i7"] {
+  padding-left             : 7em;
+  text-indent              : -1em;
+}
+p[indent="h6i8"] {
+  padding-left             : 8em;
+  text-indent              : -2em;
+}
+p[indent="h6i9"] {
+  padding-left             : 9em;
+  text-indent              : -3em;
+}
+p[indent="h7i0"] {
+  padding-left             : 0em;
+  text-indent              : 7em;
+}
+p[indent="h7i1"] {
+  padding-left             : 1em;
+  text-indent              : 6em;
+}
+p[indent="h7i2"] {
+  padding-left             : 2em;
+  text-indent              : 5em;
+}
+p[indent="h7i3"] {
+  padding-left             : 3em;
+  text-indent              : 4em;
+}
+p[indent="h7i4"] {
+  padding-left             : 4em;
+  text-indent              : 3em;
+}
+p[indent="h7i5"] {
+  padding-left             : 5em;
+  text-indent              : 2em;
+}
+p[indent="h7i6"] {
+  padding-left             : 6em;
+  text-indent              : 1em;
+}
+p[indent="h7i7"] {
+  padding-left             : 7em;
+  text-indent              : 0em;
+}
+p[indent="h7i8"] {
+  padding-left             : 8em;
+  text-indent              : -1em;
+}
+p[indent="h7i9"] {
+  padding-left             : 9em;
+  text-indent              : -2em;
+}
+p[indent="h8i0"] {
+  padding-left             : 0em;
+  text-indent              : 8em;
+}
+p[indent="h8i1"] {
+  padding-left             : 1em;
+  text-indent              : 7em;
+}
+p[indent="h8i2"] {
+  padding-left             : 2em;
+  text-indent              : 6em;
+}
+p[indent="h8i3"] {
+  padding-left             : 3em;
+  text-indent              : 5em;
+}
+p[indent="h8i4"] {
+  padding-left             : 4em;
+  text-indent              : 4em;
+}
+p[indent="h8i5"] {
+  padding-left             : 5em;
+  text-indent              : 3em;
+}
+p[indent="h8i6"] {
+  padding-left             : 6em;
+  text-indent              : 2em;
+}
+p[indent="h8i7"] {
+  padding-left             : 7em;
+  text-indent              : 1em;
+}
+p[indent="h8i8"] {
+  padding-left             : 8em;
+  text-indent              : 0em;
+}
+p[indent="h8i9"] {
+  padding-left             : 9em;
+  text-indent              : -1em;
+}
+p[indent="h9i0"] {
+  padding-left             : 0em;
+  text-indent              : 9em;
+}
+p[indent="h9i1"] {
+  padding-left             : 1em;
+  text-indent              : 8em;
+}
+p[indent="h9i2"] {
+  padding-left             : 2em;
+  text-indent              : 7em;
+}
+p[indent="h9i3"] {
+  padding-left             : 3em;
+  text-indent              : 6em;
+}
+p[indent="h9i4"] {
+  padding-left             : 4em;
+  text-indent              : 5em;
+}
+p[indent="h9i5"] {
+  padding-left             : 5em;
+  text-indent              : 4em;
+}
+p[indent="h9i6"] {
+  padding-left             : 6em;
+  text-indent              : 3em;
+}
+p[indent="h9i7"] {
+  padding-left             : 7em;
+  text-indent              : 2em;
+}
+p[indent="h9i8"] {
+  padding-left             : 8em;
+  text-indent              : 1em;
+}
+p[indent="h9i9"] {
+  padding-left             : 9em;
+  text-indent              : 0em;
+}
+┃");
+string _color_ocn_light  = (doc_matters.opt.action.ocn_hidden) ? "#FFFFFF" : "#777777";
+string _color_ocn_dark   = (doc_matters.opt.action.ocn_hidden) ? "#000000" : "#BBBBBB";
+    string _css_light_html_seg = format(q"┃
+html {
+  font-size                : 62.5%%;
+}
+*{
+  padding                  : 0px;
+  margin                   : 0px;
+}
+body {
+  height                   : 100vh;
+  font-size                : 1.6rem;
+  background-color         : #FFFFFF;
+  color                    : #000000;
+  background               : #FFFFFF;
+  background-color         : #FFFFFF;
+}
+a:link {
+  color                    : #003399;
+  text-decoration          : none;
+}
+a:visited {
+  color                    : #003399;
+  text-decoration          : none;
+}
+a:hover {
+  color                    : #000000;
+  background-color         : #F9F9AA;
+}
+a.lnkocn:link {
+  color                    : %s;
+  text-decoration          : none;
+}
+a.lnkocn:visited {
+  color                    : #32CD32;
+  text-decoration          : none;
+}
+a.lnkocn:hover {
+  color                    : #777777;
+  font-size                : 1.8rem;
+}
+a.lnkicon:link {
+  text-decoration          : none;
+}
+a.lnkicon:visited {
+  text-decoration          : none;
+}
+a.lnkicon:hover {
+  font-size                : 160%%;
+}
+a:hover img {
+  background-color         : #FFFFFF;
+}
+a:active {
+  color                    : #003399;
+  text-decoration          : underline;
+}
+input {
+  color                    : #000000;
+  background-color         : #FFFFFF;
+}
+div {
+  margin-left              : 0;
+  margin-right             : 0;
+}
+div.p {
+  margin-left              : 5%%;
+  margin-right             : 1%%;
+}
+div.substance {
+  width                    : 100%%;
+  background-color         : #FFFFFF;
+}
+div.ocn {
+  width                    : 5%%;
+  float                    : right;
+  top                      : 0;
+  background-color         : #FFFFFF;
+}
+div.endnote {
+  width                    : 95%%;
+  background-color         : #FFFFFF;
+}
+div.toc {
+  position                 : absolute;
+  float                    : left;
+  margin                   : 0;
+  padding                  : 0;
+  padding-top              : 0.5em;
+  border                   : 0;
+  width                    : 13em;
+  background-color         : #EEEEEE;
+  margin-right             : 1em;
+}
+div.summary {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #EEEEEE;
+  padding-left             : 1em;
+  background-color         : #EEEEEE;
+}
+div.content, div.main_column {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #FFFFFF;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content0, div.main_column0 {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 0%% solid #FFFFFF;
+  padding-left             : 5%%;
+}
+div.scroll {
+  margin                   : 0;
+  padding                  : 0;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content:after {
+  content                  : ' ';
+  clear                    : both;
+  display                  : block;
+  height                   : 0;
+  overflow                 : hidden;
+}
+div.footer {
+  clear                    : left;
+  padding                  : 0.5em;
+  font-size                : 1.4rem;
+  margin                   : 0;
+}
+div.toc ul {
+  list-style               : none;
+  padding                  : 0;
+  margin                   : 0;
+}
+div.toc li ul a, li ul span.currentlink
+{
+  font-weight              : normal;
+  font-size                : 1.5rem;
+  padding-left             : 2em;
+  background-color         : #EEEEEE;
+}
+div.toc a, span.currentlink{
+  display                  : block;
+  text-decoration          : none;
+  padding-left             : 0.5em;
+  color                    : #0000aa;
+}
+hr {
+  width                    : 90%%;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  margin-top               : 1.8em;
+  margin-bottom            : 1.8em;
+}
+span.currentlink {
+  text-decoration          : none;
+  background-color         : #AAAAAA;
+}
+div.toc a:visited {
+  color                    : #0000aa;
+}
+div.toc a:hover {
+  color                    : #000000;
+  background-color         : #F9F9AA;
+}
+nav#toc ol {
+  list-style-type          : none;
+}
+.norm, .bold, .verse, .group, .block, .alt {
+  line-height              : 133%%;
+  margin-top               : 12px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+}
+p, h0, h1, h2, h3, h4, h5, h6, h7, ul, li {
+  display                  : block;
+  font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+}
+p {
+  font-size                : 1.6rem;
+  font-weight              : normal;
+  line-height              : 133%%;
+  text-align               : justify;
+  text-indent              : 0mm;
+  margin-top               : 0.8em;
+  margin-bottom            : 0.8em;
+}
+img {
+  max-width                : 100%%;
+  height                   : auto;
+}
+pre {
+  width                    : auto;
+  display                  : block;
+  clear                    : both;
+  color                    : #555555;
+}
+pre.codeline {
+  display                  : table;
+  clear                    : both;
+  table-layout             : fixed;
+  margin-left              : 5%%;
+  margin-right             : 5%%;
+  width                    : 90%%;
+  white-space              : pre-wrap;
+  border-style             : none;
+  border-radius            : 5px 5px 5px 5px;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+  margin-bottom            : 1em;
+  padding                  : 0.5em 1em;
+  page-break-inside        : avoid;
+  word-wrap                : break-word;
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  white-space              : pre;
+  white-space              : pre-wrap;
+  white-space              : -moz-pre-wrap;
+  white-space              : -o-pre-wrap;
+  background-color         : #EEEEEE;
+  color                    : #000000;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+pre.codeline::before {
+  counter-reset            : linenum;
+}
+pre.codeline span.tr {
+  display                  : table-row;
+  counter-increment        : linenum;
+}
+pre.codeline span.th {
+  display                  : table-cell;
+  user-select              : none;
+  -moz-user-select         : none;
+  -webkit-user-select      : none;
+  padding                  : 0.5em 0.5em;
+  /* background-color         : #666666; */
+}
+pre.codeline span.th::before {
+  content                  : counter(linenum) ".";
+  color                    : #999999;
+  text-align               : right;
+  display                  : block;
+}
+pre.codeline span.th {
+  width                    : 4em;
+}
+pre.codeline code {
+  display                  : table-cell;
+}
+p.code {
+  border-style             : none;
+}
+p.spaced { white-space     : pre; }
+p.block {
+  white-space              : pre;
+}
+p.group { }
+p.alt { }
+p.verse {
+  white-space              : pre;
+  margin-bottom            : 6px;
+}
+p.caption {
+  text-align               : left;
+  font-size                : 1.4rem;
+  display                  : inline;
+}
+p.endnote {
+  font-size                : 1.55rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-right             : 15mm;
+  padding-left             : 1em;
+  text-indent              : -1em;
+}
+p.center {
+  text-align               : center;
+}
+p.bold {
+  font-weight              : bold;
+}
+p.bold_left {
+  font-weight              : bold;
+  text-align               : left;
+}
+p.centerbold {
+  text-align               : center;
+  font-weight              : bold;
+}
+p.em {
+  font-weight              : bold;
+  font-style               : normal;
+  background               : #FFF3B6;
+}
+.small, .small_center {
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.small {
+  text-align               : left;
+}
+p.small_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+.tiny, .tiny_left, .tiny_right, .tiny_center {
+  font-size                : 1.2rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  color                    : #777777;
+  margin-right             : 6px;
+  text-align               : left;
+}
+p.tiny { }
+p.tiny_left {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : left;
+}
+p.tiny_right {
+  margin-right             : 1em;
+  text-align               : right;
+}
+p.tiny_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+p.icons, .icons_center {
+  font-size                : 100%%;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.icons {
+  text-align               : left;
+}
+p.concordance_word {
+  line-height              : 150%%;
+  font-weight              : bold;
+  display                  : inline;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.concordance_count {
+  font-size                : 1.4rem;
+  color                    : #777777;
+  display                  : inline;
+  margin-left              : 0em;
+}
+p.concordance_object {
+  font-size                : 1.4rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+p.book_index_lev1 {
+  line-height              : 100%%;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.book_index_lev2 {
+  line-height              : 100%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+tt {
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  background-color         : #EEEEEE;
+  color                    : #000000;
+}
+%s
+note { white-space         : pre; }
+label.ocn {
+  width                    : 2%%;
+  float                    : right;
+  top                      : 0;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 6px;
+  margin-right             : 6px;
+  text-align               : right;
+  color                    : %s;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+table {
+  display                  : block;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  background-color         : inherit;
+}
+tr { }
+th,td {
+  vertical-align           : top;
+  text-align               : left;
+}
+th {
+  font-weight              : bold;
+}
+em {
+  font-weight              : bold;
+  font-style               : italic;
+}
+p.left,th.left,td.left {
+  text-align               : left;
+}
+p.small_left,th.small_left,td.small_left {
+  text-align               : left;
+  font-size                : 1.4rem;
+}
+p.right,th.right,td.right {
+  text-align               : right;
+}
+ul, li {
+  list-style-type          : none;
+  list-style               : none;
+  padding-left             : 20px;
+  font-weight              : normal;
+  line-height              : 150%%;
+  text-align               : left;
+  text-indent              : 0mm;
+  margin-left              : 1em;
+  margin-right             : 2em;
+  margin-top               : 3px;
+  margin-bottom            : 3px;
+}
+li {
+  background               : url(../image_sys/bullet_09.png) no-repeat 0px 6px;
+}
+ul { }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  font-weight              : bold;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-top               : 20px;
+  margin-bottom            : 10px;
+}
+h4.norm, h5.norm, h6.norm, h7.norm {
+  margin-top               : 10px;
+  margin-bottom            : 0px;
+}
+h0 { font-size             : 1.85rem; }
+h1 { font-size             : 1.8rem; }
+h2 { font-size             : 1.75rem; }
+h3 { font-size             : 1.7rem; }
+h4 { font-size             : 1.65rem; }
+h5 { font-size             : 1.6rem; }
+h6 { font-size             : 1.55rem; }
+h7 { font-size             : 1.5rem; }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  text-shadow              : .2em .2em .3em #808080;
+}
+h1.i { margin-left         : 2em; }
+h2.i { margin-left         : 3em; }
+h3.i { margin-left         : 4em; }
+h4.i { margin-left         : 5em; }
+h5.i { margin-left         : 6em; }
+h6.i { margin-left         : 7em; }
+h7.i { margin-left         : 8em; }
+h8.i { margin-left         : 9em; }
+h9.i { margin-left         : 10em; }
+.toc {
+  font-weight              : normal;
+  margin-top               : 6px;
+  margin-bottom            : 6px;
+}
+h0.toc {
+  margin-left              : 1em;
+  font-size                : 1.85rem;
+  line-height              : 150%%;
+}
+h1.toc {
+  margin-left              : 1em;
+  font-size                : 1.8rem;
+  line-height              : 150%%;
+}
+h2.toc {
+  margin-left              : 2em;
+  font-size                : 1.75rem;
+  line-height              : 140%%;
+}
+h3.toc {
+  margin-left              : 3em;
+  font-size                : 1.7rem;
+  line-height              : 120%%;
+}
+h4.toc {
+  margin-left              : 4em;
+  font-size                : 1.65rem;
+  line-height              : 120%%;
+}
+h5.toc {
+  margin-left              : 5em;
+  font-size                : 1.6rem;
+  line-height              : 110%%;
+}
+h6.toc {
+  margin-left              : 6em;
+  font-size                : 1.55rem;
+  line-height              : 110%%;
+}
+h7.toc {
+  margin-left              : 7em;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+.subtoc {
+  margin-right             : 34%%;
+  font-weight              : normal;
+}
+h5.subtoc {
+  margin-left              : 2em;
+  font-size                : 1.45rem;
+  margin-top               : 2px;
+  margin-bottom            : 2px;
+}
+h6.subtoc {
+  margin-left              : 3em;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+h7.subtoc {
+  margin-left              : 4em;
+  font-size                : 1.35rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+input, select, textarea {
+  font-size                : 2.2rem;
+}
+input[type="text"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+button[type="submit"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+p.form {
+  font-size                : 2.2rem;
+  line-height              : 150%%;
+}
+.icon-bar {
+  width                    : 100%%;
+  overflow                 : auto;
+  margin                   : 0em 0em 0em;
+}
+.left-bar {
+  width                    : 85%%;
+  float                    : left;
+  display                  : inline;
+  overflow                 : auto;
+}
+.toc-button {
+  position                 : absolute;
+  top                      : 8px;
+  width                    : 3em;
+  height                   : 3em;
+  border-radius            : 50%%;
+  background               : #CCCCCC;
+  fill                     : #333333;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+}
+.toc-button svg {
+  position                 : relative;
+  left                     : 25%%;
+  top                      : 25%%;
+  width                    : 150%%;
+  height                   : 150%%;
+}
+.toc-button p {
+  vertical-align           : center;
+  font-size                : 1.8rem;
+}
+.prev-next-button {
+  position                 : absolute;
+  top                      : 8px;
+  width                    : 3em;
+  height                   : 3em;
+  border-radius            : 50%%;
+  background               : #CCCCCC;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+}
+.prev-next-button svg {
+  position                 : relative;
+  left                     : 20%%;
+  top                      : 20%%;
+  width                    : 60%%;
+  height                   : 60%%;
+}
+.menu {
+  right                    : 8em;
+ }
+.previous {
+  right                    : 4em;
+ }
+.next {
+  right                    : 0em;
+ }
+.arrow {
+  fill                     : #333333;
+}
+.minitoc {
+  line-height              : 120%%;
+  font-size                : 1.6rem;
+  margin-top               : 6px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+/* flex */
+.flex-menu-bar {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-flex-wrap        : wrap;
+  -webkit-align-items      : center;
+  align-items              : center;
+  width                    : 100%%;
+  margin-left              : 5%%;
+  margin-right             : 2%%;
+  background-color         : #FFFFFF;
+}
+.flex-menu-option {
+  background-color         : #FFFFFF;
+  margin-right             : 4px;
+}
+.flex-list {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-align-items      : center;
+  display                  : block;
+  align-items              : center;
+  width                    : 100%%;
+  background-color         : #FFFFFF;
+}
+.flex-list-item {
+  background-color         : #FFFFFF;
+  margin                   : 4px;
+}
+/* grid */
+.wrapper {
+  display                  : grid;
+  grid-template-columns    : 100%%;
+  grid-template-areas      :
+    "headband"
+    "doc_header"
+    "doc_title"
+    "doc_toc"
+    "doc_prefix"
+    "doc_intro"
+    "doc_body"
+    "doc_endnotes"
+    "doc_glossary"
+    "doc_biblio"
+    "doc_bookindex"
+    "doc_blurb"
+    "doc_suffix";
+  margin                   : 0px;
+  padding                  : 0px;
+  background-color         : #FFFFFF;
+}
+.delimit {
+  border-style             : none;
+  border-color             : #FFFFFF;
+  padding                  : 10px;
+}
+.headband {
+  grid-area                : headband;
+  background-color         : #FFFFFF;
+}
+.doc_header {
+  grid-area                : doc_header;
+}
+.doc_title {
+  grid-area                : doc_title;
+}
+.doc_toc {
+  grid-area                : doc_toc;
+}
+.doc_prefix {
+  grid-area                : doc_prefix;
+}
+.doc_intro {
+  grid-area                : doc_intro;
+}
+.doc_body {
+  grid-area                : doc_body;
+}
+.doc_endnotes {
+  grid-area                : doc_endnotes;
+}
+.doc_glossary {
+  grid-area                : doc_glossary;
+}
+.doc_biblio {
+  grid-area                : doc_biblio;
+}
+.doc_bookindex {
+  grid-area                : doc_bookindex;
+}
+.doc_blurb {
+  grid-area                : doc_blurb;
+}
+.doc_suffix {
+  grid-area                : doc_suffix;
+}
+.nav-ul {
+  list-style               : none;
+  float                    : left;
+}
+.nav-li {
+  float                    : left;
+  padding-right            : 0.7em;
+}
+.nav-li a {
+  text-decoration          : none;
+  color                    : #FFFFFF;
+}
+footer {
+  background-color         : #00704E;
+}
+┃",
+    _color_ocn_light,
+    _css_indent,
+    _color_ocn_light,
+);
+    string _css_dark_html_seg = format(q"┃
+html {
+}
+*{
+  padding                  : 0px;
+  margin                   : 0px;
+}
+body {
+  height                   : 100vh;
+  background-color         : #000000;
+  color                    : #CCCCCC;
+  background               : #000000;
+  background-color         : #000000;
+}
+a:link {
+  color                    : #FFFFFF;
+  text-decoration          : none;
+}
+a:visited {
+  color                    : #999999;
+  text-decoration          : none;
+}
+a:hover {
+  color                    : #000000;
+  background-color         : #555555;
+}
+a.lnkocn:link {
+  color                    : %s;
+  text-decoration          : none;
+}
+a.lnkocn:visited {
+  color                    : #9ACD32;
+  text-decoration          : none;
+}
+a.lnkocn:hover {
+  color                    : #BBBBBB;
+  font-size                : 1.8rem;
+}
+a.lnkicon:link {
+  text-decoration          : none;
+}
+a.lnkicon:visited {
+  text-decoration          : none;
+}
+a.lnkicon:hover {
+  color                    : #BBBBBB;
+  font-size                : 120%%;
+}
+a:hover img {
+  background-color         : #000000;
+}
+a:active {
+  color                    : #888888;
+  text-decoration          : underline;
+}
+input {
+  color                    : #FFFFFF;
+  background-color         : #777777;
+}
+div {
+  margin-left              : 0;
+  margin-right             : 0;
+}
+div.p {
+  margin-left              : 5%%;
+  margin-right             : 1%%;
+}
+div.substance {
+  width                    : 100%%;
+  background-color         : #000000;
+}
+div.ocn {
+  width                    : 5%%;
+  float                    : right;
+  top                      : 0;
+  background-color         : #000000;
+}
+div.endnote {
+  width                    : 95%%;
+  background-color         : #000000;
+}
+div.toc {
+  position                 : absolute;
+  float                    : left;
+  margin                   : 0;
+  padding                  : 0;
+  padding-top              : 0.5em;
+  border                   : 0;
+  width                    : 13em;
+  background-color         : #111111;
+  margin-right             : 1em;
+}
+div.summary {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #111111;
+  padding-left             : 1em;
+  background-color         : #111111;
+}
+div.content, div.main_column {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #000000;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content0, div.main_column0 {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 0%% solid #000000;
+  padding-left             : 5%%;
+}
+div.scroll {
+  margin                   : 0;
+  padding                  : 0;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content:after {
+  content                  : ' ';
+  clear                    : both;
+  display                  : block;
+  height                   : 0;
+  overflow                 : hidden;
+}
+div.footer {
+  clear                    : left;
+  padding                  : 0.5em;
+  font-size                : 1.4rem;
+  margin                   : 0;
+}
+div.toc ul {
+  list-style               : none;
+  padding                  : 0;
+  margin                   : 0;
+}
+div.toc li ul a, li ul span.currentlink
+{
+  font-weight              : normal;
+  font-size                : 1.5rem;
+  padding-left             : 2em;
+  background-color         : #111111;
+}
+div.toc a, span.currentlink{
+  display                  : block;
+  text-decoration          : none;
+  padding-left             : 0.5em;
+  color                    : #FF00AA;
+}
+hr {
+  width                    : 90%%;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  margin-top               : 1.8em;
+  margin-bottom            : 1.8em;
+}
+span.currentlink {
+  text-decoration          : none;
+  background-color         : #AAAAF9;
+}
+div.toc a:visited {
+  color                    : #FF00AA;
+}
+div.toc a:hover {
+  color                    : #CCCCCC;
+  background-color         : #F9F9AA;
+}
+nav#toc ol {
+  list-style-type          : none;
+}
+.norm, .bold, .verse, .group, .block, .alt {
+  line-height              : 133%%;
+  margin-top               : 12px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+}
+p, h0, h1, h2, h3, h4, h5, h6, h7, ul, li {
+  display                  : block;
+  font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+}
+p {
+  font-size                : 1.6rem;
+  font-weight              : normal;
+  line-height              : 133%%;
+  text-align               : justify;
+  text-indent              : 0mm;
+  margin-top               : 0.8em;
+  margin-bottom            : 0.8em;
+}
+img {
+  max-width                : 100%%;
+  height                   : auto;
+}
+pre {
+  width                    : auto;
+  display                  : block;
+  clear                    : both;
+  color                    : #555555;
+}
+pre.codeline {
+  display                  : table;
+  clear                    : both;
+  table-layout             : fixed;
+  margin-left              : 5%%;
+  margin-right             : 5%%;
+  width                    : 90%%;
+  white-space              : pre-wrap;
+  border-style             : none;
+  border-radius            : 5px 5px 5px 5px;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+  margin-bottom            : 1em;
+  padding                  : 0.5em 1em;
+  page-break-inside        : avoid;
+  word-wrap                : break-word;
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  white-space              : pre;
+  white-space              : pre-wrap;
+  white-space              : -moz-pre-wrap;
+  white-space              : -o-pre-wrap;
+  background-color         : #555555;
+  color                    : #DDDDDD;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+pre.codeline::before {
+  counter-reset            : linenum;
+}
+pre.codeline span.tr {
+  display                  : table-row;
+  counter-increment        : linenum;
+}
+pre.codeline span.th {
+  display                  : table-cell;
+  user-select              : none;
+  -moz-user-select         : none;
+  -webkit-user-select      : none;
+  padding                  : 0.5em 0.5em;
+}
+pre.codeline span.th::before {
+  content                  : counter(linenum) ".";
+  color                    : #999999;
+  text-align               : right;
+  display                  : block;
+}
+pre.codeline span.th {
+  width                    : 4em;
+}
+pre.codeline code {
+  display                  : table-cell;
+}
+p.code {
+  border-style             : none;
+}
+p.spaced { white-space     : pre; }
+p.block {
+  white-space              : pre;
+}
+p.group { }
+p.alt { }
+p.verse {
+  white-space              : pre;
+  margin-bottom            : 6px;
+}
+p.caption {
+  text-align               : left;
+  font-size                : 1.4rem;
+  display                  : inline;
+}
+p.endnote {
+  font-size                : 1.5rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-right             : 15mm;
+  padding-left             : 1em;
+  text-indent              : -1em;
+}
+p.center {
+  text-align               : center;
+}
+p.bold {
+  font-weight              : bold;
+}
+p.bold_left {
+  font-weight              : bold;
+  text-align               : left;
+}
+p.centerbold {
+  text-align               : center;
+  font-weight              : bold;
+}
+p.em {
+  font-weight              : bold;
+  font-style               : normal;
+  background               : #FFF3B6;
+}
+.small, .small_center {
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.small {
+  text-align               : left;
+}
+p.small_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+.tiny, .tiny_left, .tiny_right, .tiny_center {
+  font-size                : 1.35rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  color                    : #EEEEEE;
+  margin-right             : 6px;
+  text-align               : left;
+}
+p.tiny { }
+p.tiny_left {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : left;
+}
+p.tiny_right {
+  margin-right             : 1em;
+  text-align               : right;
+}
+p.tiny_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+p.concordance_word {
+  line-height              : 150%%;
+  font-weight              : bold;
+  display                  : inline;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.concordance_count {
+  font-size                : 1.4rem;
+  color                    : #555555;
+  display                  : inline;
+  margin-left              : 0em;
+}
+p.concordance_object {
+  font-size                : 1.4rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+p.book_index_lev1 {
+  line-height              : 100%%;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.book_index_lev2 {
+  line-height              : 100%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+tt {
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  background-color         : #555555;
+  color                    : #DDDDDD;
+}
+%s
+note { white-space         : pre; }
+label.ocn {
+  width                    : 2%%;
+  float                    : right;
+  top                      : 0;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 6px;
+  margin-right             : 6px;
+  text-align               : right;
+  color                    : %s;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+table {
+  display                  : block;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  background-color         : inherit;
+}
+tr { }
+th,td {
+  vertical-align           : top;
+  text-align               : left;
+}
+th {
+  font-weight              : bold;
+}
+em {
+  font-weight              : bold;
+  font-style               : italic;
+}
+p.left,th.left,td.left {
+  text-align               : left;
+}
+p.small_left,th.small_left,td.small_left {
+  text-align               : left;
+  font-size                : 1.4rem;
+}
+p.right,th.right,td.right {
+  text-align               : right;
+}
+ul, li {
+  list-style-type          : none;
+  list-style               : none;
+  padding-left             : 20px;
+  font-weight              : normal;
+  line-height              : 150%%;
+  text-align               : left;
+  text-indent              : 0mm;
+  margin-left              : 1em;
+  margin-right             : 2em;
+  margin-top               : 3px;
+  margin-bottom            : 3px;
+}
+li {
+  background               : (../image_sys/bullet_09.png) no-repeat 0px 6px;
+}
+ul { }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  font-weight              : bold;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-top               : 20px;
+  margin-bottom            : 10px;
+}
+h4.norm, h5.norm, h6.norm, h7.norm {
+  margin-top               : 10px;
+  margin-bottom            : 0px;
+}
+h0 { font-size             : 1.9rem; }
+h1 { font-size             : 1.8rem; }
+h2 { font-size             : 1.75rem; }
+h3 { font-size             : 1.7rem; }
+h4 { font-size             : 1.65rem; }
+h5 { font-size             : 1.6rem; }
+h6 { font-size             : 1.55rem; }
+h7 { font-size             : 1.5rem; }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  text-shadow              : .2em .2em .3em #999999;
+}
+h1.i { margin-left         : 2em; }
+h2.i { margin-left         : 3em; }
+h3.i { margin-left         : 4em; }
+h4.i { margin-left         : 5em; }
+h5.i { margin-left         : 6em; }
+h6.i { margin-left         : 7em; }
+h7.i { margin-left         : 8em; }
+h8.i { margin-left         : 9em; }
+h9.i { margin-left         : 10em; }
+.toc {
+  font-weight              : normal;
+  margin-top               : 6px;
+  margin-bottom            : 6px;
+}
+h0.toc {
+  margin-left              : 1em;
+  font-size                : 1.8rem;
+  line-height              : 150%%;
+}
+h1.toc {
+  margin-left              : 1em;
+  font-size                : 1.75rem;
+  line-height              : 150%%;
+}
+h2.toc {
+  margin-left              : 2em;
+  font-size                : 1.7rem;
+  line-height              : 140%%;
+}
+h3.toc {
+  margin-left              : 3em;
+  font-size                : 1.65rem;
+  line-height              : 120%%;
+}
+h4.toc {
+  margin-left              : 4em;
+  font-size                : 1.6rem;
+  line-height              : 120%%;
+}
+h5.toc {
+  margin-left              : 5em;
+  font-size                : 1.5rem;
+  line-height              : 110%%;
+}
+h6.toc {
+  margin-left              : 6em;
+  font-size                : 1.5rem;
+  line-height              : 110%%;
+}
+h7.toc {
+  margin-left              : 7em;
+  font-size                : 1.45rem;
+  line-height              : 100%%;
+}
+.subtoc {
+  margin-right             : 34%%;
+  font-weight              : normal;
+}
+h5.subtoc {
+  margin-left              : 2em;
+  font-size                : 1.4rem;
+  margin-top               : 2px;
+  margin-bottom            : 2px;
+}
+h6.subtoc {
+  margin-left              : 3em;
+  font-size                : 1.35;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+h7.subtoc {
+  margin-left              : 4em;
+  font-size                : 1.3rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+input, select, textarea {
+  font-size                : 2.2rem;
+}
+input[type="text"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+button[type="submit"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+p.form {
+  font-size                : 2.2rem;
+  line-height              : 150%%;
+}
+.icon-bar {
+  width                    : 100%%;
+  overflow                 : auto;
+  margin                   : 0em 0em 0em;
+}
+.left-bar {
+  width                    : 85%%;
+  float                    : left;
+  display                  : inline;
+  overflow                 : auto;
+}
+.toc-button {
+  position                 : absolute;
+  top                      : 8px;
+  width                    : 3em;
+  height                   : 3em;
+  border-radius            : 50%%;
+  background               : #555555;
+  fill                     : #DDDDDD;
+  box-shadow               : 0 2px 5px #EEEEEE inset;
+}
+.toc-button svg {
+  position                 : relative;
+  left                     : 25%%;
+  top                      : 25%%;
+  width                    : 150%%;
+  height                   : 150%%;
+}
+.toc-button p {
+  vertical-align           : center;
+  font-size                : 1.8rem;
+}
+.prev-next-button {
+  position                 : absolute;
+  top                      : 8px;
+  width                    : 3em;
+  height                   : 3em;
+  border-radius            : 50%%;
+  background               : #555555;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+}
+.prev-next-button svg {
+  position                 : relative;
+  left                     : 20%%;
+  top                      : 20%%;
+  width                    : 60%%;
+  height                   : 60%%;
+}
+.menu {
+  right                    : 8em;
+ }
+.previous {
+  right                    : 4em;
+ }
+.next {
+  right                    : 0em;
+ }
+.arrow {
+   fill                    : #DDDDDD;
+}
+.minitoc {
+  line-height              : 120%%;
+  font-size                : 1.6rem;
+  margin-top               : 6px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+/* flex */
+.flex-menu-bar {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-flex-wrap        : wrap;
+  -webkit-align-items      : center;
+  align-items              : center;
+  width                    : 100%%;
+  margin-left              : 5%%;
+  margin-right             : 2%%;
+  background-color         : #000000;
+}
+.flex-menu-option {
+  background-color         : #000000;
+  margin-right             : 4px;
+}
+.flex-list {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-align-items      : center;
+  display                  : block;
+  align-items              : center;
+  width                    : 100%%;
+  background-color         : #000000;
+}
+.flex-list-item {
+  background-color         : #000000;
+  margin                   : 4px;
+}
+/* grid */
+.wrapper {
+  display                  : grid;
+  grid-template-columns    : 100%%;
+  grid-template-areas      :
+    "headband"
+    "doc_header"
+    "doc_title"
+    "doc_toc"
+    "doc_prefix"
+    "doc_intro"
+    "doc_body"
+    "doc_endnotes"
+    "doc_glossary"
+    "doc_biblio"
+    "doc_bookindex"
+    "doc_blurb"
+    "doc_suffix";
+  margin                   : 0px;
+  padding                  : 0px;
+  background-color         : #000000;
+}
+.delimit {
+  border-style             : none;
+  border-color             : #000000;
+  padding                  : 10px;
+}
+.headband {
+  grid-area                : headband;
+  background-color         : #000000;
+}
+.doc_header {
+  grid-area                : doc_header;
+}
+.doc_title {
+  grid-area                : doc_title;
+}
+.doc_toc {
+  grid-area                : doc_toc;
+}
+.doc_prefix {
+  grid-area                : doc_prefix;
+}
+.doc_intro {
+  grid-area                : doc_intro;
+}
+.doc_body {
+  grid-area                : doc_body;
+}
+.doc_endnotes {
+  grid-area                : doc_endnotes;
+}
+.doc_glossary {
+  grid-area                : doc_glossary;
+}
+.doc_biblio {
+  grid-area                : doc_biblio;
+}
+.doc_bookindex {
+  grid-area                : doc_bookindex;
+}
+.doc_blurb {
+  grid-area                : doc_blurb;
+}
+.doc_suffix {
+  grid-area                : doc_suffix;
+}
+.nav-ul {
+  list-style               : none;
+  float                    : left;
+}
+.nav-li {
+  float                    : left;
+  padding-right            : 0.7em;
+}
+.nav-li a {
+  text-decoration          : none;
+  color                    : #000000;
+}
+footer {
+  background-color         : #FF704E;
+}
+┃",
+    _color_ocn_dark,
+    _css_indent,
+    _color_ocn_dark,
+);
+    string _css_light_html_scroll = format(q"┃
+html {
+  font-size                : 62.5%%;
+}
+*{
+  padding                  : 0px;
+  margin                   : 0px;
+}
+body {
+  height                   : 100vh;
+  font-size                : 1.6rem;
+  background-color         : #FFFFFF;
+  color                    : #000000;
+  background               : #FFFFFF;
+  background-color         : #FFFFFF;
+}
+a:link {
+  color                    : #003399;
+  text-decoration          : none;
+}
+a:visited {
+  color                    : #003399;
+  text-decoration          : none;
+}
+a:hover {
+  color                    : #000000;
+  background-color         : #F9F9AA;
+}
+a.lnkocn:link {
+  color                    : %s;
+  text-decoration          : none;
+}
+a.lnkocn:visited {
+  color                    : #32CD32;
+  text-decoration          : none;
+}
+a.lnkocn:hover {
+  color                    : #777777;
+  font-size                : 1.8rem;
+}
+a.lnkicon:link {
+  text-decoration          : none;
+}
+a.lnkicon:visited {
+  text-decoration          : none;
+}
+a.lnkicon:hover {
+  font-size                : 160%%;
+}
+a:hover img {
+  background-color         : #FFFFFF;
+}
+a:active {
+  color                    : #003399;
+  text-decoration          : underline;
+}
+input {
+  color                    : #000000;
+  background-color         : #FFFFFF;
+}
+div {
+  margin-left              : 0;
+  margin-right             : 0;
+}
+div.p {
+  margin-left              : 5%%;
+  margin-right             : 1%%;
+}
+div.substance {
+  width                    : 100%%;
+  background-color         : #FFFFFF;
+}
+div.ocn {
+  width                    : 5%%;
+  float                    : right;
+  top                      : 0;
+  background-color         : #FFFFFF;
+}
+div.endnote {
+  width                    : 95%%;
+  background-color         : #FFFFFF;
+}
+div.toc {
+  position                 : absolute;
+  float                    : left;
+  margin                   : 0;
+  padding                  : 0;
+  padding-top              : 0.5em;
+  border                   : 0;
+  width                    : 13em;
+  background-color         : #EEEEEE;
+  margin-right             : 1em;
+}
+div.summary {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #EEEEEE;
+  padding-left             : 1em;
+  background-color         : #EEEEEE;
+}
+div.content, div.main_column {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #FFFFFF;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content0, div.main_column0 {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 0%% solid #FFFFFF;
+  padding-left             : 5%%;
+}
+div.scroll {
+  margin                   : 0;
+  padding                  : 0;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content:after {
+  content                  : ' ';
+  clear                    : both;
+  display                  : block;
+  height                   : 0;
+  overflow                 : hidden;
+}
+div.footer {
+  clear                    : left;
+  padding                  : 0.5em;
+  font-size                : 1.4rem;
+  margin                   : 0;
+}
+div.toc ul {
+  list-style               : none;
+  padding                  : 0;
+  margin                   : 0;
+}
+div.toc li ul a, li ul span.currentlink
+{
+  font-weight              : normal;
+  font-size                : 1.5rem;
+  padding-left             : 2em;
+  background-color         : #EEEEEE;
+}
+div.toc a, span.currentlink{
+  display                  : block;
+  text-decoration          : none;
+  padding-left             : 0.5em;
+  color                    : #0000aa;
+}
+hr {
+  width                    : 90%%;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  margin-top               : 1.8em;
+  margin-bottom            : 1.8em;
+}
+span.currentlink {
+  text-decoration          : none;
+  background-color         : #AAAAAA;
+}
+div.toc a:visited {
+  color                    : #0000aa;
+}
+div.toc a:hover {
+  color                    : #000000;
+  background-color         : #F9F9AA;
+}
+nav#toc ol {
+  list-style-type          : none;
+}
+.norm, .bold, .verse, .group, .block, .alt {
+  line-height              : 133%%;
+  margin-top               : 12px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+}
+p, h0, h1, h2, h3, h4, h5, h6, h7, ul, li {
+  display                  : block;
+  font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+}
+p {
+  font-size                : 1.6rem;
+  font-weight              : normal;
+  line-height              : 133%%;
+  text-align               : justify;
+  text-indent              : 0mm;
+  margin-top               : 0.8em;
+  margin-bottom            : 0.8em;
+}
+img {
+  max-width                : 100%%;
+  height                   : auto;
+}
+pre {
+  width                    : auto;
+  display                  : block;
+  clear                    : both;
+  color                    : #555555;
+}
+pre.codeline {
+  display                  : table;
+  clear                    : both;
+  table-layout             : fixed;
+  margin-left              : 5%%;
+  margin-right             : 5%%;
+  width                    : 90%%;
+  white-space              : pre-wrap;
+  border-style             : none;
+  border-radius            : 5px 5px 5px 5px;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+  margin-bottom            : 1em;
+  padding                  : 0.5em 1em;
+  page-break-inside        : avoid;
+  word-wrap                : break-word;
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  white-space              : pre;
+  white-space              : pre-wrap;
+  white-space              : -moz-pre-wrap;
+  white-space              : -o-pre-wrap;
+  background-color         : #EEEEEE;
+  color                    : #000000;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+pre.codeline::before {
+  counter-reset            : linenum;
+}
+pre.codeline span.tr {
+  display                  : table-row;
+  counter-increment        : linenum;
+}
+pre.codeline span.th {
+  display                  : table-cell;
+  user-select              : none;
+  -moz-user-select         : none;
+  -webkit-user-select      : none;
+  padding                  : 0.5em 0.5em;
+  /* background-color         : #666666; */
+}
+pre.codeline span.th::before {
+  content                  : counter(linenum) ".";
+  color                    : #999999;
+  text-align               : right;
+  display                  : block;
+}
+pre.codeline span.th {
+  width                    : 4em;
+}
+pre.codeline code {
+  display                  : table-cell;
+}
+p.code {
+  border-style             : none;
+}
+p.spaced { white-space     : pre; }
+p.block {
+  white-space              : pre;
+}
+p.group { }
+p.alt { }
+p.verse {
+  white-space              : pre;
+  margin-bottom            : 6px;
+}
+p.caption {
+  text-align               : left;
+  font-size                : 1.4rem;
+  display                  : inline;
+}
+p.endnote {
+  font-size                : 1.55rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-right             : 15mm;
+  padding-left             : 1em;
+  text-indent              : -1em;
+}
+p.center {
+  text-align               : center;
+}
+p.bold {
+  font-weight              : bold;
+}
+p.bold_left {
+  font-weight              : bold;
+  text-align               : left;
+}
+p.centerbold {
+  text-align               : center;
+  font-weight              : bold;
+}
+p.em {
+  font-weight              : bold;
+  font-style               : normal;
+  background               : #FFF3B6;
+}
+.small, .small_center {
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.small {
+  text-align               : left;
+}
+p.small_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+.tiny, .tiny_left, .tiny_right, .tiny_center {
+  font-size                : 1.2rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  color                    : #777777;
+  margin-right             : 6px;
+  text-align               : left;
+}
+p.tiny { }
+p.tiny_left {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : left;
+}
+p.tiny_right {
+  margin-right             : 1em;
+  text-align               : right;
+}
+p.tiny_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+p.icons, .icons_center {
+  font-size                : 100%%;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.icons {
+  text-align               : left;
+}
+p.concordance_word {
+  line-height              : 150%%;
+  font-weight              : bold;
+  display                  : inline;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.concordance_count {
+  font-size                : 1.4rem;
+  color                    : #777777;
+  display                  : inline;
+  margin-left              : 0em;
+}
+p.concordance_object {
+  font-size                : 1.4rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+p.book_index_lev1 {
+  line-height              : 100%%;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.book_index_lev2 {
+  line-height              : 100%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+tt {
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  background-color         : #EEEEEE;
+  color                    : #000000;
+}
+%s
+note { white-space         : pre; }
+label.ocn {
+  width                    : 2%%;
+  float                    : right;
+  top                      : 0;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 6px;
+  margin-right             : 6px;
+  text-align               : right;
+  color                    : %s;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+table {
+  display                  : block;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  background-color         : inherit;
+}
+tr { }
+th,td {
+  vertical-align           : top;
+  text-align               : left;
+}
+th {
+  font-weight              : bold;
+}
+em {
+  font-weight              : bold;
+  font-style               : italic;
+}
+p.left,th.left,td.left {
+  text-align               : left;
+}
+p.small_left,th.small_left,td.small_left {
+  text-align               : left;
+  font-size                : 1.4rem;
+}
+p.right,th.right,td.right {
+  text-align               : right;
+}
+ul, li {
+  list-style-type          : none;
+  list-style               : none;
+  padding-left             : 20px;
+  font-weight              : normal;
+  line-height              : 150%%;
+  text-align               : left;
+  text-indent              : 0mm;
+  margin-left              : 1em;
+  margin-right             : 2em;
+  margin-top               : 3px;
+  margin-bottom            : 3px;
+}
+li {
+  background               : url(../image_sys/bullet_09.png) no-repeat 0px 6px;
+}
+ul { }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  font-weight              : bold;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-top               : 20px;
+  margin-bottom            : 10px;
+}
+h4.norm, h5.norm, h6.norm, h7.norm {
+  margin-top               : 10px;
+  margin-bottom            : 0px;
+}
+h0 { font-size             : 1.85rem; }
+h1 { font-size             : 1.8rem; }
+h2 { font-size             : 1.75rem; }
+h3 { font-size             : 1.7rem; }
+h4 { font-size             : 1.65rem; }
+h5 { font-size             : 1.6rem; }
+h6 { font-size             : 1.55rem; }
+h7 { font-size             : 1.5rem; }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  text-shadow              : .2em .2em .3em #808080;
+}
+h1.i { margin-left         : 2em; }
+h2.i { margin-left         : 3em; }
+h3.i { margin-left         : 4em; }
+h4.i { margin-left         : 5em; }
+h5.i { margin-left         : 6em; }
+h6.i { margin-left         : 7em; }
+h7.i { margin-left         : 8em; }
+h8.i { margin-left         : 9em; }
+h9.i { margin-left         : 10em; }
+.toc {
+  font-weight              : normal;
+  margin-top               : 6px;
+  margin-bottom            : 6px;
+}
+h0.toc {
+  margin-left              : 1em;
+  font-size                : 1.85rem;
+  line-height              : 150%%;
+}
+h1.toc {
+  margin-left              : 1em;
+  font-size                : 1.8rem;
+  line-height              : 150%%;
+}
+h2.toc {
+  margin-left              : 2em;
+  font-size                : 1.75rem;
+  line-height              : 140%%;
+}
+h3.toc {
+  margin-left              : 3em;
+  font-size                : 1.7rem;
+  line-height              : 120%%;
+}
+h4.toc {
+  margin-left              : 4em;
+  font-size                : 1.65rem;
+  line-height              : 120%%;
+}
+h5.toc {
+  margin-left              : 5em;
+  font-size                : 1.6rem;
+  line-height              : 110%%;
+}
+h6.toc {
+  margin-left              : 6em;
+  font-size                : 1.55rem;
+  line-height              : 110%%;
+}
+h7.toc {
+  margin-left              : 7em;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+.subtoc {
+  margin-right             : 34%%;
+  font-weight              : normal;
+}
+h5.subtoc {
+  margin-left              : 2em;
+  font-size                : 1.45rem;
+  margin-top               : 2px;
+  margin-bottom            : 2px;
+}
+h6.subtoc {
+  margin-left              : 3em;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+h7.subtoc {
+  margin-left              : 4em;
+  font-size                : 1.35rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+input, select, textarea {
+  font-size                : 2.2rem;
+}
+input[type="text"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+button[type="submit"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+p.form {
+  font-size                : 2.2rem;
+  line-height              : 150%%;
+}
+/* flex */
+.flex-menu-bar {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-flex-wrap        : wrap;
+  -webkit-align-items      : center;
+  align-items              : center;
+  width                    : 100%%;
+  margin-left              : 5%%;
+  margin-right             : 2%%;
+  background-color         : #FFFFFF;
+}
+.flex-menu-option {
+  background-color         : #FFFFFF;
+  margin-right             : 4px;
+}
+.flex-list {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-align-items      : center;
+  display                  : block;
+  align-items              : center;
+  width                    : 100%%;
+  background-color         : #FFFFFF;
+}
+.flex-list-item {
+  background-color         : #FFFFFF;
+  margin                   : 4px;
+}
+/* grid */
+.wrapper {
+  display                  : grid;
+  grid-template-columns    : 100%%;
+  grid-template-areas      :
+    "headband"
+    "doc_header"
+    "doc_title"
+    "doc_toc"
+    "doc_prefix"
+    "doc_intro"
+    "doc_body"
+    "doc_endnotes"
+    "doc_glossary"
+    "doc_biblio"
+    "doc_bookindex"
+    "doc_blurb"
+    "doc_suffix";
+  margin                   : 0px;
+  padding                  : 0px;
+  background-color         : #FFFFFF;
+}
+.delimit {
+  border-style             : none;
+  border-color             : #FFFFFF;
+  padding                  : 10px;
+}
+.headband {
+  grid-area                : headband;
+  background-color         : #FFFFFF;
+}
+.doc_header {
+  grid-area                : doc_header;
+}
+.doc_title {
+  grid-area                : doc_title;
+}
+.doc_toc {
+  grid-area                : doc_toc;
+}
+.doc_prefix {
+  grid-area                : doc_prefix;
+}
+.doc_intro {
+  grid-area                : doc_intro;
+}
+.doc_body {
+  grid-area                : doc_body;
+}
+.doc_endnotes {
+  grid-area                : doc_endnotes;
+}
+.doc_glossary {
+  grid-area                : doc_glossary;
+}
+.doc_biblio {
+  grid-area                : doc_biblio;
+}
+.doc_bookindex {
+  grid-area                : doc_bookindex;
+}
+.doc_blurb {
+  grid-area                : doc_blurb;
+}
+.doc_suffix {
+  grid-area                : doc_suffix;
+}
+.nav-ul {
+  list-style               : none;
+  float                    : left;
+}
+.nav-li {
+  float                    : left;
+  padding-right            : 0.7em;
+}
+.nav-li a {
+  text-decoration          : none;
+  color                    : #FFFFFF;
+}
+footer {
+  background-color         : #00704E;
+}
+┃",
+    _color_ocn_light,
+    _css_indent,
+    _color_ocn_light,
+);
+    string _css_dark_html_scroll = format(q"┃
+html {
+}
+*{
+  padding                  : 0px;
+  margin                   : 0px;
+}
+body {
+  height                   : 100vh;
+  background-color         : #000000;
+  color                    : #CCCCCC;
+  background               : #000000;
+  background-color         : #000000;
+}
+a:link {
+  color                    : #FFFFFF;
+  text-decoration          : none;
+}
+a:visited {
+  color                    : #999999;
+  text-decoration          : none;
+}
+a:hover {
+  color                    : #000000;
+  background-color         : #555555;
+}
+a.lnkocn:link {
+  color                    : %s;
+  text-decoration          : none;
+}
+a.lnkocn:visited {
+  color                    : #9ACD32;
+  text-decoration          : none;
+}
+a.lnkocn:hover {
+  color                    : #BBBBBB;
+  font-size                : 1.8rem;
+}
+a.lnkicon:link {
+  text-decoration          : none;
+}
+a.lnkicon:visited {
+  text-decoration          : none;
+}
+a.lnkicon:hover {
+  color                    : #BBBBBB;
+  font-size                : 120%%;
+}
+a:hover img {
+  background-color         : #000000;
+}
+a:active {
+  color                    : #888888;
+  text-decoration          : underline;
+}
+input {
+  color                    : #FFFFFF;
+  background-color         : #777777;
+}
+div {
+  margin-left              : 0;
+  margin-right             : 0;
+}
+div.p {
+  margin-left              : 5%%;
+  margin-right             : 1%%;
+}
+div.substance {
+  width                    : 100%%;
+  background-color         : #000000;
+}
+div.ocn {
+  width                    : 5%%;
+  float                    : right;
+  top                      : 0;
+  background-color         : #000000;
+}
+div.endnote {
+  width                    : 95%%;
+  background-color         : #000000;
+}
+div.toc {
+  position                 : absolute;
+  float                    : left;
+  margin                   : 0;
+  padding                  : 0;
+  padding-top              : 0.5em;
+  border                   : 0;
+  width                    : 13em;
+  background-color         : #111111;
+  margin-right             : 1em;
+}
+div.summary {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #111111;
+  padding-left             : 1em;
+  background-color         : #111111;
+}
+div.content, div.main_column {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #000000;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content0, div.main_column0 {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 0%% solid #000000;
+  padding-left             : 5%%;
+}
+div.scroll {
+  margin                   : 0;
+  padding                  : 0;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content:after {
+  content                  : ' ';
+  clear                    : both;
+  display                  : block;
+  height                   : 0;
+  overflow                 : hidden;
+}
+div.footer {
+  clear                    : left;
+  padding                  : 0.5em;
+  font-size                : 1.4rem;
+  margin                   : 0;
+}
+div.toc ul {
+  list-style               : none;
+  padding                  : 0;
+  margin                   : 0;
+}
+div.toc li ul a, li ul span.currentlink
+{
+  font-weight              : normal;
+  font-size                : 1.5rem;
+  padding-left             : 2em;
+  background-color         : #111111;
+}
+div.toc a, span.currentlink{
+  display                  : block;
+  text-decoration          : none;
+  padding-left             : 0.5em;
+  color                    : #FF00AA;
+}
+hr {
+  width                    : 90%%;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  margin-top               : 1.8em;
+  margin-bottom            : 1.8em;
+}
+span.currentlink {
+  text-decoration          : none;
+  background-color         : #AAAAF9;
+}
+div.toc a:visited {
+  color                    : #FF00AA;
+}
+div.toc a:hover {
+  color                    : #CCCCCC;
+  background-color         : #F9F9AA;
+}
+nav#toc ol {
+  list-style-type          : none;
+}
+.norm, .bold, .verse, .group, .block, .alt {
+  line-height              : 133%%;
+  margin-top               : 12px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+}
+p, h0, h1, h2, h3, h4, h5, h6, h7, ul, li {
+  display                  : block;
+  font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+}
+p {
+  font-size                : 1.6rem;
+  font-weight              : normal;
+  line-height              : 133%%;
+  text-align               : justify;
+  text-indent              : 0mm;
+  margin-top               : 0.8em;
+  margin-bottom            : 0.8em;
+}
+img {
+  max-width                : 100%%;
+  height                   : auto;
+}
+pre {
+  width                    : auto;
+  display                  : block;
+  clear                    : both;
+  color                    : #555555;
+}
+pre.codeline {
+  display                  : table;
+  clear                    : both;
+  table-layout             : fixed;
+  margin-left              : 5%%;
+  margin-right             : 5%%;
+  width                    : 90%%;
+  white-space              : pre-wrap;
+  border-style             : none;
+  border-radius            : 5px 5px 5px 5px;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+  margin-bottom            : 1em;
+  padding                  : 0.5em 1em;
+  page-break-inside        : avoid;
+  word-wrap                : break-word;
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  white-space              : pre;
+  white-space              : pre-wrap;
+  white-space              : -moz-pre-wrap;
+  white-space              : -o-pre-wrap;
+  background-color         : #555555;
+  color                    : #DDDDDD;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+pre.codeline::before {
+  counter-reset            : linenum;
+}
+pre.codeline span.tr {
+  display                  : table-row;
+  counter-increment        : linenum;
+}
+pre.codeline span.th {
+  display                  : table-cell;
+  user-select              : none;
+  -moz-user-select         : none;
+  -webkit-user-select      : none;
+  padding                  : 0.5em 0.5em;
+}
+pre.codeline span.th::before {
+  content                  : counter(linenum) ".";
+  color                    : #999999;
+  text-align               : right;
+  display                  : block;
+}
+pre.codeline span.th {
+  width                    : 4em;
+}
+pre.codeline code {
+  display                  : table-cell;
+}
+p.code {
+  border-style             : none;
+}
+p.spaced { white-space     : pre; }
+p.block {
+  white-space              : pre;
+}
+p.group { }
+p.alt { }
+p.verse {
+  white-space              : pre;
+  margin-bottom            : 6px;
+}
+p.caption {
+  text-align               : left;
+  font-size                : 1.4rem;
+  display                  : inline;
+}
+p.endnote {
+  font-size                : 1.5rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-right             : 15mm;
+  padding-left             : 1em;
+  text-indent              : -1em;
+}
+p.center {
+  text-align               : center;
+}
+p.bold {
+  font-weight              : bold;
+}
+p.bold_left {
+  font-weight              : bold;
+  text-align               : left;
+}
+p.centerbold {
+  text-align               : center;
+  font-weight              : bold;
+}
+p.em {
+  font-weight              : bold;
+  font-style               : normal;
+  background               : #FFF3B6;
+}
+.small, .small_center {
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.small {
+  text-align               : left;
+}
+p.small_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+.tiny, .tiny_left, .tiny_right, .tiny_center {
+  font-size                : 1.35rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  color                    : #EEEEEE;
+  margin-right             : 6px;
+  text-align               : left;
+}
+p.tiny { }
+p.tiny_left {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : left;
+}
+p.tiny_right {
+  margin-right             : 1em;
+  text-align               : right;
+}
+p.tiny_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+p.concordance_word {
+  line-height              : 150%%;
+  font-weight              : bold;
+  display                  : inline;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.concordance_count {
+  font-size                : 1.4rem;
+  color                    : #555555;
+  display                  : inline;
+  margin-left              : 0em;
+}
+p.concordance_object {
+  font-size                : 1.4rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+p.book_index_lev1 {
+  line-height              : 100%%;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.book_index_lev2 {
+  line-height              : 100%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+tt {
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  background-color         : #555555;
+  color                    : #DDDDDD;
+}
+%s
+note { white-space         : pre; }
+label.ocn {
+  width                    : 2%%;
+  float                    : right;
+  top                      : 0;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 6px;
+  margin-right             : 6px;
+  text-align               : right;
+  color                    : %s;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+table {
+  display                  : block;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  background-color         : inherit;
+}
+tr { }
+th,td {
+  vertical-align           : top;
+  text-align               : left;
+}
+th {
+  font-weight              : bold;
+}
+em {
+  font-weight              : bold;
+  font-style               : italic;
+}
+p.left,th.left,td.left {
+  text-align               : left;
+}
+p.small_left,th.small_left,td.small_left {
+  text-align               : left;
+  font-size                : 1.4rem;
+}
+p.right,th.right,td.right {
+  text-align               : right;
+}
+ul, li {
+  list-style-type          : none;
+  list-style               : none;
+  padding-left             : 20px;
+  font-weight              : normal;
+  line-height              : 150%%;
+  text-align               : left;
+  text-indent              : 0mm;
+  margin-left              : 1em;
+  margin-right             : 2em;
+  margin-top               : 3px;
+  margin-bottom            : 3px;
+}
+li {
+  background               : (../image_sys/bullet_09.png) no-repeat 0px 6px;
+}
+ul { }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  font-weight              : bold;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-top               : 20px;
+  margin-bottom            : 10px;
+}
+h4.norm, h5.norm, h6.norm, h7.norm {
+  margin-top               : 10px;
+  margin-bottom            : 0px;
+}
+h0 { font-size             : 1.9rem; }
+h1 { font-size             : 1.8rem; }
+h2 { font-size             : 1.75rem; }
+h3 { font-size             : 1.7rem; }
+h4 { font-size             : 1.65rem; }
+h5 { font-size             : 1.6rem; }
+h6 { font-size             : 1.55rem; }
+h7 { font-size             : 1.5rem; }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  text-shadow              : .2em .2em .3em #999999;
+}
+h1.i { margin-left         : 2em; }
+h2.i { margin-left         : 3em; }
+h3.i { margin-left         : 4em; }
+h4.i { margin-left         : 5em; }
+h5.i { margin-left         : 6em; }
+h6.i { margin-left         : 7em; }
+h7.i { margin-left         : 8em; }
+h8.i { margin-left         : 9em; }
+h9.i { margin-left         : 10em; }
+.toc {
+  font-weight              : normal;
+  margin-top               : 6px;
+  margin-bottom            : 6px;
+}
+h0.toc {
+  margin-left              : 1em;
+  font-size                : 1.8rem;
+  line-height              : 150%%;
+}
+h1.toc {
+  margin-left              : 1em;
+  font-size                : 1.75rem;
+  line-height              : 150%%;
+}
+h2.toc {
+  margin-left              : 2em;
+  font-size                : 1.7rem;
+  line-height              : 140%%;
+}
+h3.toc {
+  margin-left              : 3em;
+  font-size                : 1.65rem;
+  line-height              : 120%%;
+}
+h4.toc {
+  margin-left              : 4em;
+  font-size                : 1.6rem;
+  line-height              : 120%%;
+}
+h5.toc {
+  margin-left              : 5em;
+  font-size                : 1.5rem;
+  line-height              : 110%%;
+}
+h6.toc {
+  margin-left              : 6em;
+  font-size                : 1.5rem;
+  line-height              : 110%%;
+}
+h7.toc {
+  margin-left              : 7em;
+  font-size                : 1.45rem;
+  line-height              : 100%%;
+}
+.subtoc {
+  margin-right             : 34%%;
+  font-weight              : normal;
+}
+h5.subtoc {
+  margin-left              : 2em;
+  font-size                : 1.4rem;
+  margin-top               : 2px;
+  margin-bottom            : 2px;
+}
+h6.subtoc {
+  margin-left              : 3em;
+  font-size                : 1.35;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+h7.subtoc {
+  margin-left              : 4em;
+  font-size                : 1.3rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+input, select, textarea {
+  font-size                : 2.2rem;
+}
+input[type="text"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+button[type="submit"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+p.form {
+  font-size                : 2.2rem;
+  line-height              : 150%%;
+}
+/* flex */
+.flex-menu-bar {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-flex-wrap        : wrap;
+  -webkit-align-items      : center;
+  align-items              : center;
+  width                    : 100%%;
+  margin-left              : 5%%;
+  margin-right             : 2%%;
+  background-color         : #000000;
+}
+.flex-menu-option {
+  background-color         : #000000;
+  margin-right             : 4px;
+}
+.flex-list {
+  display                  : -webkit-flex;
+  display                  : flex;
+  -webkit-align-items      : center;
+  display                  : block;
+  align-items              : center;
+  width                    : 100%%;
+  background-color         : #000000;
+}
+.flex-list-item {
+  background-color         : #000000;
+  margin                   : 4px;
+}
+/* grid */
+.wrapper {
+  display                  : grid;
+  grid-template-columns    : 100%%;
+  grid-template-areas      :
+    "headband"
+    "doc_header"
+    "doc_title"
+    "doc_toc"
+    "doc_prefix"
+    "doc_intro"
+    "doc_body"
+    "doc_endnotes"
+    "doc_glossary"
+    "doc_biblio"
+    "doc_bookindex"
+    "doc_blurb"
+    "doc_suffix";
+  margin                   : 0px;
+  padding                  : 0px;
+  background-color         : #000000;
+}
+.delimit {
+  border-style             : none;
+  border-color             : #000000;
+  padding                  : 10px;
+}
+.headband {
+  grid-area                : headband;
+  background-color         : #000000;
+}
+.doc_header {
+  grid-area                : doc_header;
+}
+.doc_title {
+  grid-area                : doc_title;
+}
+.doc_toc {
+  grid-area                : doc_toc;
+}
+.doc_prefix {
+  grid-area                : doc_prefix;
+}
+.doc_intro {
+  grid-area                : doc_intro;
+}
+.doc_body {
+  grid-area                : doc_body;
+}
+.doc_endnotes {
+  grid-area                : doc_endnotes;
+}
+.doc_glossary {
+  grid-area                : doc_glossary;
+}
+.doc_biblio {
+  grid-area                : doc_biblio;
+}
+.doc_bookindex {
+  grid-area                : doc_bookindex;
+}
+.doc_blurb {
+  grid-area                : doc_blurb;
+}
+.doc_suffix {
+  grid-area                : doc_suffix;
+}
+.nav-ul {
+  list-style               : none;
+  float                    : left;
+}
+.nav-li {
+  float                    : left;
+  padding-right            : 0.7em;
+}
+.nav-li a {
+  text-decoration          : none;
+  color                    : #000000;
+}
+footer {
+  background-color         : #FF704E;
+}
+┃",
+    _color_ocn_dark,
+    _css_indent,
+    _color_ocn_dark,
+);
+    string _css_light_epub = format(q"┃
+html {
+  font-size                : 62.5%%;
+}
+*{
+  padding                  : 0px;
+  margin                   : 0px;
+}
+body {
+  height                   : 100vh;
+  font-size                : 1.6rem;
+  background-color         : #FFFFFF;
+  color                    : #000000;
+  background               : #FFFFFF;
+  background-color         : #FFFFFF;
+}
+a:link {
+  color                    : #003399;
+  text-decoration          : none;
+}
+a:visited {
+  color                    : #003399;
+  text-decoration          : none;
+}
+a:hover {
+  color                    : #000000;
+  background-color         : #F9F9AA;
+}
+a.lnkocn:link {
+  color                    : %s;
+  text-decoration          : none;
+}
+a.lnkocn:visited {
+  color                    : #32CD32;
+  text-decoration          : none;
+}
+a.lnkocn:hover {
+  color                    : #777777;
+  font-size                : 1.8rem;
+}
+a.lnkicon:link {
+  text-decoration          : none;
+}
+a.lnkicon:visited {
+  text-decoration          : none;
+}
+a.lnkicon:hover {
+  font-size                : 160%%;
+}
+a:hover img {
+  background-color         : #FFFFFF;
+}
+a:active {
+  color                    : #003399;
+  text-decoration          : underline;
+}
+input {
+  color                    : #000000;
+  background-color         : #FFFFFF;
+}
+div {
+  margin-left              : 0;
+  margin-right             : 0;
+}
+div.p {
+  margin-left              : 5%%;
+  margin-right             : 1%%;
+}
+div.substance {
+  width                    : 100%%;
+  background-color         : #FFFFFF;
+}
+div.ocn {
+  width                    : 5%%;
+  float                    : right;
+  top                      : 0;
+  background-color         : #FFFFFF;
+}
+div.endnote {
+  width                    : 95%%;
+  background-color         : #FFFFFF;
+}
+div.toc {
+  position                 : absolute;
+  float                    : left;
+  margin                   : 0;
+  padding                  : 0;
+  padding-top              : 0.5em;
+  border                   : 0;
+  width                    : 13em;
+  background-color         : #EEEEEE;
+  margin-right             : 1em;
+}
+div.summary {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #EEEEEE;
+  padding-left             : 1em;
+  background-color         : #EEEEEE;
+}
+div.content, div.main_column {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #FFFFFF;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content0, div.main_column0 {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 0%% solid #FFFFFF;
+  padding-left             : 5%%;
+}
+div.scroll {
+  margin                   : 0;
+  padding                  : 0;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content:after {
+  content                  : ' ';
+  clear                    : both;
+  display                  : block;
+  height                   : 0;
+  overflow                 : hidden;
+}
+div.footer {
+  clear                    : left;
+  padding                  : 0.5em;
+  font-size                : 1.4rem;
+  margin                   : 0;
+}
+div.toc ul {
+  list-style               : none;
+  padding                  : 0;
+  margin                   : 0;
+}
+div.toc li ul a, li ul span.currentlink
+{
+  font-weight              : normal;
+  font-size                : 1.5rem;
+  padding-left             : 2em;
+  background-color         : #EEEEEE;
+}
+div.toc a, span.currentlink{
+  display                  : block;
+  text-decoration          : none;
+  padding-left             : 0.5em;
+  color                    : #0000aa;
+}
+hr {
+  width                    : 90%%;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  margin-top               : 1.8em;
+  margin-bottom            : 1.8em;
+}
+span.currentlink {
+  text-decoration          : none;
+  background-color         : #AAAAAA;
+}
+div.toc a:visited {
+  color                    : #0000aa;
+}
+div.toc a:hover {
+  color                    : #000000;
+  background-color         : #F9F9AA;
+}
+nav#toc ol {
+  list-style-type          : none;
+}
+.norm, .bold, .verse, .group, .block, .alt {
+  line-height              : 133%%;
+  margin-top               : 12px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+}
+p, h0, h1, h2, h3, h4, h5, h6, h7, ul, li {
+  display                  : block;
+  font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+}
+p {
+  font-size                : 1.6rem;
+  font-weight              : normal;
+  line-height              : 133%%;
+  text-align               : justify;
+  text-indent              : 0mm;
+  margin-top               : 0.8em;
+  margin-bottom            : 0.8em;
+}
+img {
+  max-width                : 100%%;
+  height                   : auto;
+}
+pre {
+  width                    : auto;
+  display                  : block;
+  clear                    : both;
+  color                    : #555555;
+}
+pre.codeline {
+  display                  : table;
+  clear                    : both;
+  table-layout             : fixed;
+  margin-left              : 5%%;
+  margin-right             : 5%%;
+  width                    : 90%%;
+  white-space              : pre-wrap;
+  border-style             : none;
+  border-radius            : 5px 5px 5px 5px;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+  margin-bottom            : 1em;
+  padding                  : 0.5em 1em;
+  page-break-inside        : avoid;
+  word-wrap                : break-word;
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  white-space              : pre;
+  white-space              : pre-wrap;
+  white-space              : -moz-pre-wrap;
+  white-space              : -o-pre-wrap;
+  background-color         : #EEEEEE;
+  color                    : #000000;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+pre.codeline::before {
+  counter-reset            : linenum;
+}
+pre.codeline span.tr {
+  display                  : table-row;
+  counter-increment        : linenum;
+}
+pre.codeline span.th {
+  display                  : table-cell;
+  user-select              : none;
+  -moz-user-select         : none;
+  -webkit-user-select      : none;
+  padding                  : 0.5em 0.5em;
+  /* background-color         : #666666; */
+}
+pre.codeline span.th::before {
+  content                  : counter(linenum) ".";
+  color                    : #999999;
+  text-align               : right;
+  display                  : block;
+}
+pre.codeline span.th {
+  width                    : 4em;
+}
+pre.codeline code {
+  display                  : table-cell;
+}
+p.code {
+  border-style             : none;
+}
+p.spaced { white-space     : pre; }
+p.block {
+  white-space              : pre;
+}
+p.group { }
+p.alt { }
+p.verse {
+  white-space              : pre;
+  margin-bottom            : 6px;
+}
+p.caption {
+  text-align               : left;
+  font-size                : 1.4rem;
+  display                  : inline;
+}
+p.endnote {
+  font-size                : 1.55rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-right             : 15mm;
+  padding-left             : 1em;
+  text-indent              : -1em;
+}
+p.center {
+  text-align               : center;
+}
+p.bold {
+  font-weight              : bold;
+}
+p.bold_left {
+  font-weight              : bold;
+  text-align               : left;
+}
+p.centerbold {
+  text-align               : center;
+  font-weight              : bold;
+}
+p.em {
+  font-weight              : bold;
+  font-style               : normal;
+  background               : #FFF3B6;
+}
+.small, .small_center {
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.small {
+  text-align               : left;
+}
+p.small_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+.tiny, .tiny_left, .tiny_right, .tiny_center {
+  font-size                : 1.2rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  color                    : #777777;
+  margin-right             : 6px;
+  text-align               : left;
+}
+p.tiny { }
+p.tiny_left {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : left;
+}
+p.tiny_right {
+  margin-right             : 1em;
+  text-align               : right;
+}
+p.tiny_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+p.icons, .icons_center {
+  font-size                : 100%%;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.icons {
+  text-align               : left;
+}
+p.concordance_word {
+  line-height              : 150%%;
+  font-weight              : bold;
+  display                  : inline;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.concordance_count {
+  font-size                : 1.4rem;
+  color                    : #777777;
+  display                  : inline;
+  margin-left              : 0em;
+}
+p.concordance_object {
+  font-size                : 1.4rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+p.book_index_lev1 {
+  line-height              : 100%%;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.book_index_lev2 {
+  line-height              : 100%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+tt {
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  background-color         : #EEEEEE;
+  color                    : #000000;
+}
+%s
+note { white-space         : pre; }
+label.ocn {
+  width                    : 2%%;
+  float                    : right;
+  top                      : 0;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 6px;
+  margin-right             : 6px;
+  text-align               : right;
+  color                    : %s;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+table {
+  display                  : block;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  background-color         : inherit;
+}
+tr { }
+th,td {
+  vertical-align           : top;
+  text-align               : left;
+}
+th {
+  font-weight              : bold;
+}
+em {
+  font-weight              : bold;
+  font-style               : italic;
+}
+p.left,th.left,td.left {
+  text-align               : left;
+}
+p.small_left,th.small_left,td.small_left {
+  text-align               : left;
+  font-size                : 1.4rem;
+}
+p.right,th.right,td.right {
+  text-align               : right;
+}
+ul, li {
+  list-style-type          : none;
+  list-style               : none;
+  padding-left             : 20px;
+  font-weight              : normal;
+  line-height              : 150%%;
+  text-align               : left;
+  text-indent              : 0mm;
+  margin-left              : 1em;
+  margin-right             : 2em;
+  margin-top               : 3px;
+  margin-bottom            : 3px;
+}
+li {
+  background               : url(../image_sys/bullet_09.png) no-repeat 0px 6px;
+}
+ul { }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  font-weight              : bold;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-top               : 20px;
+  margin-bottom            : 10px;
+}
+h4.norm, h5.norm, h6.norm, h7.norm {
+  margin-top               : 10px;
+  margin-bottom            : 0px;
+}
+h0 { font-size             : 1.85rem; }
+h1 { font-size             : 1.8rem; }
+h2 { font-size             : 1.75rem; }
+h3 { font-size             : 1.7rem; }
+h4 { font-size             : 1.65rem; }
+h5 { font-size             : 1.6rem; }
+h6 { font-size             : 1.55rem; }
+h7 { font-size             : 1.5rem; }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  text-shadow              : .2em .2em .3em #808080;
+}
+h1.i { margin-left         : 2em; }
+h2.i { margin-left         : 3em; }
+h3.i { margin-left         : 4em; }
+h4.i { margin-left         : 5em; }
+h5.i { margin-left         : 6em; }
+h6.i { margin-left         : 7em; }
+h7.i { margin-left         : 8em; }
+h8.i { margin-left         : 9em; }
+h9.i { margin-left         : 10em; }
+.toc {
+  font-weight              : normal;
+  margin-top               : 6px;
+  margin-bottom            : 6px;
+}
+h0.toc {
+  margin-left              : 1em;
+  font-size                : 1.85rem;
+  line-height              : 150%%;
+}
+h1.toc {
+  margin-left              : 1em;
+  font-size                : 1.8rem;
+  line-height              : 150%%;
+}
+h2.toc {
+  margin-left              : 2em;
+  font-size                : 1.75rem;
+  line-height              : 140%%;
+}
+h3.toc {
+  margin-left              : 3em;
+  font-size                : 1.7rem;
+  line-height              : 120%%;
+}
+h4.toc {
+  margin-left              : 4em;
+  font-size                : 1.65rem;
+  line-height              : 120%%;
+}
+h5.toc {
+  margin-left              : 5em;
+  font-size                : 1.6rem;
+  line-height              : 110%%;
+}
+h6.toc {
+  margin-left              : 6em;
+  font-size                : 1.55rem;
+  line-height              : 110%%;
+}
+h7.toc {
+  margin-left              : 7em;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+.subtoc {
+  margin-right             : 34%%;
+  font-weight              : normal;
+}
+h5.subtoc {
+  margin-left              : 2em;
+  font-size                : 1.45rem;
+  margin-top               : 2px;
+  margin-bottom            : 2px;
+}
+h6.subtoc {
+  margin-left              : 3em;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+h7.subtoc {
+  margin-left              : 4em;
+  font-size                : 1.35rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+input, select, textarea {
+  font-size                : 2.2rem;
+}
+input[type="text"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+button[type="submit"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+p.form {
+  font-size                : 2.2rem;
+  line-height              : 150%%;
+}
+
+┃",
+    _color_ocn_light,
+    _css_indent,
+    _color_ocn_light,
+);
+    string _css_dark_epub = format(q"┃
+html {
+}
+*{
+  padding                  : 0px;
+  margin                   : 0px;
+}
+body {
+  height                   : 100vh;
+  background-color         : #000000;
+  color                    : #CCCCCC;
+  background               : #000000;
+  background-color         : #000000;
+}
+a:link {
+  color                    : #FFFFFF;
+  text-decoration          : none;
+}
+a:visited {
+  color                    : #999999;
+  text-decoration          : none;
+}
+a:hover {
+  color                    : #000000;
+  background-color         : #555555;
+}
+a.lnkocn:link {
+  color                    : %s;
+  text-decoration          : none;
+}
+a.lnkocn:visited {
+  color                    : #9ACD32;
+  text-decoration          : none;
+}
+a.lnkocn:hover {
+  color                    : #BBBBBB;
+  font-size                : 1.8rem;
+}
+a.lnkicon:link {
+  text-decoration          : none;
+}
+a.lnkicon:visited {
+  text-decoration          : none;
+}
+a.lnkicon:hover {
+  color                    : #BBBBBB;
+  font-size                : 120%%;
+}
+a:hover img {
+  background-color         : #000000;
+}
+a:active {
+  color                    : #888888;
+  text-decoration          : underline;
+}
+input {
+  color                    : #FFFFFF;
+  background-color         : #777777;
+}
+div {
+  margin-left              : 0;
+  margin-right             : 0;
+}
+div.p {
+  margin-left              : 5%%;
+  margin-right             : 1%%;
+}
+div.substance {
+  width                    : 100%%;
+  background-color         : #000000;
+}
+div.ocn {
+  width                    : 5%%;
+  float                    : right;
+  top                      : 0;
+  background-color         : #000000;
+}
+div.endnote {
+  width                    : 95%%;
+  background-color         : #000000;
+}
+div.toc {
+  position                 : absolute;
+  float                    : left;
+  margin                   : 0;
+  padding                  : 0;
+  padding-top              : 0.5em;
+  border                   : 0;
+  width                    : 13em;
+  background-color         : #111111;
+  margin-right             : 1em;
+}
+div.summary {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #111111;
+  padding-left             : 1em;
+  background-color         : #111111;
+}
+div.content, div.main_column {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 13em solid #000000;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content0, div.main_column0 {
+  margin                   : 0;
+  padding                  : 0;
+  border-left              : 0%% solid #000000;
+  padding-left             : 5%%;
+}
+div.scroll {
+  margin                   : 0;
+  padding                  : 0;
+  padding-left             : 1em;
+  padding-right            : 1em;
+}
+div.content:after {
+  content                  : ' ';
+  clear                    : both;
+  display                  : block;
+  height                   : 0;
+  overflow                 : hidden;
+}
+div.footer {
+  clear                    : left;
+  padding                  : 0.5em;
+  font-size                : 1.4rem;
+  margin                   : 0;
+}
+div.toc ul {
+  list-style               : none;
+  padding                  : 0;
+  margin                   : 0;
+}
+div.toc li ul a, li ul span.currentlink
+{
+  font-weight              : normal;
+  font-size                : 1.5rem;
+  padding-left             : 2em;
+  background-color         : #111111;
+}
+div.toc a, span.currentlink{
+  display                  : block;
+  text-decoration          : none;
+  padding-left             : 0.5em;
+  color                    : #FF00AA;
+}
+hr {
+  width                    : 90%%;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  margin-top               : 1.8em;
+  margin-bottom            : 1.8em;
+}
+span.currentlink {
+  text-decoration          : none;
+  background-color         : #AAAAF9;
+}
+div.toc a:visited {
+  color                    : #FF00AA;
+}
+div.toc a:hover {
+  color                    : #CCCCCC;
+  background-color         : #F9F9AA;
+}
+nav#toc ol {
+  list-style-type          : none;
+}
+.norm, .bold, .verse, .group, .block, .alt {
+  line-height              : 133%%;
+  margin-top               : 12px;
+  margin-bottom            : 0px;
+  padding-left             : 0em;
+  text-indent              : 0em;
+}
+p, h0, h1, h2, h3, h4, h5, h6, h7, ul, li {
+  display                  : block;
+  font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+}
+p {
+  font-size                : 1.6rem;
+  font-weight              : normal;
+  line-height              : 133%%;
+  text-align               : justify;
+  text-indent              : 0mm;
+  margin-top               : 0.8em;
+  margin-bottom            : 0.8em;
+}
+img {
+  max-width                : 100%%;
+  height                   : auto;
+}
+pre {
+  width                    : auto;
+  display                  : block;
+  clear                    : both;
+  color                    : #555555;
+}
+pre.codeline {
+  display                  : table;
+  clear                    : both;
+  table-layout             : fixed;
+  margin-left              : 5%%;
+  margin-right             : 5%%;
+  width                    : 90%%;
+  white-space              : pre-wrap;
+  border-style             : none;
+  border-radius            : 5px 5px 5px 5px;
+  box-shadow               : 0 2px 5px #AAAAAA inset;
+  margin-bottom            : 1em;
+  padding                  : 0.5em 1em;
+  page-break-inside        : avoid;
+  word-wrap                : break-word;
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  white-space              : pre;
+  white-space              : pre-wrap;
+  white-space              : -moz-pre-wrap;
+  white-space              : -o-pre-wrap;
+  background-color         : #555555;
+  color                    : #DDDDDD;
+  font-size                : 1.5rem;
+  line-height              : 100%%;
+}
+pre.codeline::before {
+  counter-reset            : linenum;
+}
+pre.codeline span.tr {
+  display                  : table-row;
+  counter-increment        : linenum;
+}
+pre.codeline span.th {
+  display                  : table-cell;
+  user-select              : none;
+  -moz-user-select         : none;
+  -webkit-user-select      : none;
+  padding                  : 0.5em 0.5em;
+}
+pre.codeline span.th::before {
+  content                  : counter(linenum) ".";
+  color                    : #999999;
+  text-align               : right;
+  display                  : block;
+}
+pre.codeline span.th {
+  width                    : 4em;
+}
+pre.codeline code {
+  display                  : table-cell;
+}
+p.code {
+  border-style             : none;
+}
+p.spaced { white-space     : pre; }
+p.block {
+  white-space              : pre;
+}
+p.group { }
+p.alt { }
+p.verse {
+  white-space              : pre;
+  margin-bottom            : 6px;
+}
+p.caption {
+  text-align               : left;
+  font-size                : 1.4rem;
+  display                  : inline;
+}
+p.endnote {
+  font-size                : 1.5rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-right             : 15mm;
+  padding-left             : 1em;
+  text-indent              : -1em;
+}
+p.center {
+  text-align               : center;
+}
+p.bold {
+  font-weight              : bold;
+}
+p.bold_left {
+  font-weight              : bold;
+  text-align               : left;
+}
+p.centerbold {
+  text-align               : center;
+  font-weight              : bold;
+}
+p.em {
+  font-weight              : bold;
+  font-style               : normal;
+  background               : #FFF3B6;
+}
+.small, .small_center {
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  margin-right             : 6px;
+}
+p.small {
+  text-align               : left;
+}
+p.small_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+.tiny, .tiny_left, .tiny_right, .tiny_center {
+  font-size                : 1.35rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+  color                    : #EEEEEE;
+  margin-right             : 6px;
+  text-align               : left;
+}
+p.tiny { }
+p.tiny_left {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : left;
+}
+p.tiny_right {
+  margin-right             : 1em;
+  text-align               : right;
+}
+p.tiny_center {
+  margin-left              : 0px;
+  margin-right             : 0px;
+  text-align               : center;
+}
+p.concordance_word {
+  line-height              : 150%%;
+  font-weight              : bold;
+  display                  : inline;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.concordance_count {
+  font-size                : 1.4rem;
+  color                    : #555555;
+  display                  : inline;
+  margin-left              : 0em;
+}
+p.concordance_object {
+  font-size                : 1.4rem;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+p.book_index_lev1 {
+  line-height              : 100%%;
+  margin-top               : 4px;
+  margin-bottom            : 1px;
+}
+p.book_index_lev2 {
+  line-height              : 100%%;
+  text-align               : left;
+  margin-left              : 3em;
+  margin-top               : 1px;
+  margin-bottom            : 3px;
+}
+tt {
+  font-family              : inconsolata, "liberation mono", "bitstream vera mono", "dejavu mono", monaco, consolas, "andale mono", "courier new", "courier 10 pitch", courier, monospace;
+  background-color         : #555555;
+  color                    : #DDDDDD;
+}
+%s
+note { white-space         : pre; }
+label.ocn {
+  width                    : 2%%;
+  float                    : right;
+  top                      : 0;
+  font-size                : 1.4rem;
+  margin-top               : 0px;
+  margin-bottom            : 6px;
+  margin-right             : 6px;
+  text-align               : right;
+  color                    : %s;
+  -khtml-user-select       : none;
+  -moz-user-select         : none;
+  -ms-user-select          : none;
+  -o-user-select           : none;
+  -webkit-user-select      : none;
+  user-select              : none;
+}
+table {
+  display                  : block;
+  margin-left              : 5%%;
+  margin-right             : 2em;
+  background-color         : inherit;
+}
+tr { }
+th,td {
+  vertical-align           : top;
+  text-align               : left;
+}
+th {
+  font-weight              : bold;
+}
+em {
+  font-weight              : bold;
+  font-style               : italic;
+}
+p.left,th.left,td.left {
+  text-align               : left;
+}
+p.small_left,th.small_left,td.small_left {
+  text-align               : left;
+  font-size                : 1.4rem;
+}
+p.right,th.right,td.right {
+  text-align               : right;
+}
+ul, li {
+  list-style-type          : none;
+  list-style               : none;
+  padding-left             : 20px;
+  font-weight              : normal;
+  line-height              : 150%%;
+  text-align               : left;
+  text-indent              : 0mm;
+  margin-left              : 1em;
+  margin-right             : 2em;
+  margin-top               : 3px;
+  margin-bottom            : 3px;
+}
+li {
+  background               : (../image_sys/bullet_09.png) no-repeat 0px 6px;
+}
+ul { }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  font-weight              : bold;
+  line-height              : 120%%;
+  text-align               : left;
+  margin-top               : 20px;
+  margin-bottom            : 10px;
+}
+h4.norm, h5.norm, h6.norm, h7.norm {
+  margin-top               : 10px;
+  margin-bottom            : 0px;
+}
+h0 { font-size             : 1.9rem; }
+h1 { font-size             : 1.8rem; }
+h2 { font-size             : 1.75rem; }
+h3 { font-size             : 1.7rem; }
+h4 { font-size             : 1.65rem; }
+h5 { font-size             : 1.6rem; }
+h6 { font-size             : 1.55rem; }
+h7 { font-size             : 1.5rem; }
+h0, h1, h2, h3, h4, h5, h6, h7 {
+  text-shadow              : .2em .2em .3em #999999;
+}
+h1.i { margin-left         : 2em; }
+h2.i { margin-left         : 3em; }
+h3.i { margin-left         : 4em; }
+h4.i { margin-left         : 5em; }
+h5.i { margin-left         : 6em; }
+h6.i { margin-left         : 7em; }
+h7.i { margin-left         : 8em; }
+h8.i { margin-left         : 9em; }
+h9.i { margin-left         : 10em; }
+.toc {
+  font-weight              : normal;
+  margin-top               : 6px;
+  margin-bottom            : 6px;
+}
+h0.toc {
+  margin-left              : 1em;
+  font-size                : 1.8rem;
+  line-height              : 150%%;
+}
+h1.toc {
+  margin-left              : 1em;
+  font-size                : 1.75rem;
+  line-height              : 150%%;
+}
+h2.toc {
+  margin-left              : 2em;
+  font-size                : 1.7rem;
+  line-height              : 140%%;
+}
+h3.toc {
+  margin-left              : 3em;
+  font-size                : 1.65rem;
+  line-height              : 120%%;
+}
+h4.toc {
+  margin-left              : 4em;
+  font-size                : 1.6rem;
+  line-height              : 120%%;
+}
+h5.toc {
+  margin-left              : 5em;
+  font-size                : 1.5rem;
+  line-height              : 110%%;
+}
+h6.toc {
+  margin-left              : 6em;
+  font-size                : 1.5rem;
+  line-height              : 110%%;
+}
+h7.toc {
+  margin-left              : 7em;
+  font-size                : 1.45rem;
+  line-height              : 100%%;
+}
+.subtoc {
+  margin-right             : 34%%;
+  font-weight              : normal;
+}
+h5.subtoc {
+  margin-left              : 2em;
+  font-size                : 1.4rem;
+  margin-top               : 2px;
+  margin-bottom            : 2px;
+}
+h6.subtoc {
+  margin-left              : 3em;
+  font-size                : 1.35;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+h7.subtoc {
+  margin-left              : 4em;
+  font-size                : 1.3rem;
+  margin-top               : 0px;
+  margin-bottom            : 0px;
+}
+input, select, textarea {
+  font-size                : 2.2rem;
+}
+input[type="text"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+button[type="submit"] {
+  font-size                : 1.8rem;
+  line-height              : 120%%;
+}
+p.form {
+  font-size                : 2.2rem;
+  line-height              : 150%%;
+}
+
+┃",
+    _color_ocn_dark,
+    _css_indent,
+    _color_ocn_dark,
+);
+    auto css_() {
+      struct _CSS {
+        string html_seg    = "/* spine css html seg stylesheet */\n";
+        string html_scroll = "/* spine css html scroll stylesheet */\n";
+        string epub        = "/* spine css epub stylesheet */\n";
+      }
+      return _CSS();
+    }
+    auto css = css_();
+    if (doc_matters.opt.action.css_theme_default) {
+      css.html_seg    ~= _css_light_html_seg;
+      css.html_scroll ~= _css_light_html_scroll;
+      css.epub        ~= _css_light_epub;
+    } else {
+      css.html_seg    ~= _css_dark_html_seg;
+      css.html_scroll ~= _css_dark_html_scroll;
+      css.epub        ~= _css_dark_epub;
+    }
+    return css;
+  }
+}
diff --git a/src/sisudoc/meta/conf_make_meta_json.d b/src/sisudoc/meta/conf_make_meta_json.d
new file mode 100644
index 0000000..5330799
--- /dev/null
+++ b/src/sisudoc/meta/conf_make_meta_json.d
@@ -0,0 +1,695 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  json headers<BR>
+  extract json header return json
++/
+module sisudoc.meta.conf_make_meta_json;
+@safe:
+static template contentJSONtoSpineStruct() {
+  import
+    std.algorithm,
+    std.array,
+    std.exception,
+    std.regex,
+    std.stdio,
+    std.string,
+    std.typecons,
+    std.utf,
+    std.conv : to;
+  import
+    sisudoc.meta.conf_make_meta_structs,
+    sisudoc.meta.conf_make_meta_json,
+    sisudoc.meta.defaults,
+    sisudoc.meta.rgx;
+  ConfComposite _struct_composite;
+  auto contentJSONtoSpineStruct(C,J,M)(C _struct_composite, J _json, M _manifested, string _identifier) {
+    mixin spineRgxIn;
+    static auto rgx = RgxI();
+    debug (json) {
+      writeln(">> --------------------------- >>");
+      foreach (tag0; _json.object.byKeyValue) {
+        if (tag0.value.stringof == "string") {
+          writeln(tag0.key, ": ", tag0.value);
+        } else { // writeln(tag0.key, ":");
+          foreach (tag1; tag0.value.object.byKeyValue) {
+            writeln(tag0.key, ":", tag1.key, ": ", tag1.value);
+          }
+        }
+      }
+      writeln("<< --------------------------- <<");
+    }
+    confCompositeMakeBuild _mk;
+    /+ make ------------------------------------------------------------------- +/
+    if ("make" in _json.object) {
+      if ("doc_type" in _json.object["make"]
+        && (_json.object["make"]["doc_type"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.doc_type = _json.object["make"]["doc_type"].str;
+      }
+      if ("breaks" in _json.object["make"]
+        && (_json.object["make"]["breaks"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.breaks = _json.object["make"]["breaks"].str;
+      }
+      if ("bold" in _json.object["make"]
+        && (_json.object["make"]["bold"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.bold = _json.object["make"]["bold"].str;
+      }
+      if ("cover_image" in _json.object["make"]
+        && (_json.object["make"]["cover_image"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.cover_image = _json.object["make"]["cover_image"].str;
+      }
+      if ("css" in _json.object["make"]
+        && (_json.object["make"]["css"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.css = _json.object["make"]["css"].str;
+      }
+      if ("emphasis" in _json.object["make"]
+        && (_json.object["make"]["emphasis"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.emphasis = _json.object["make"]["emphasis"].str;
+      }
+      if ("footer" in _json.object["make"]) {
+        if (_json.object["make"]["footer"].type().to!string == "string") {
+          char[][] __match_footer_array
+            = (cast(char[]) _json.object["make"]["footer"].str)
+              .split(rgx.make_heading_delimiter);
+          _struct_composite.make_str.footer = __match_footer_array.to!(string[]);
+        } else if (_json.object["make"]["footer"].type().to!string == "array") {
+          string[] _match_footer_array;
+          foreach (_match_heading; _json.object["make"]["footer"].arrayNoRef) {
+            _match_footer_array ~= _match_heading.str;
+          }
+          _struct_composite.make_str.footer = _match_footer_array;
+        }
+      }
+      if ("headings" in _json.object["make"]) {
+        if (_json.object["make"]["headings"].type().to!string == "string") {
+         char[][] __match_headings_array
+            = (cast(char[]) _json.object["make"]["headings"].str)
+              .split(rgx.make_heading_delimiter);
+          _struct_composite.make_str.headings = __match_headings_array.to!(string[]);
+        } else if (_json.object["make"]["headings"].type().to!string == "array") {
+          string[] _match_headings_array;
+          foreach (_match_heading; _json.object["make"]["headings"].arrayNoRef) {
+            _match_headings_array ~= _match_heading.str;
+          }
+          _struct_composite.make_str.headings = _match_headings_array;
+        }
+      }
+      if ("home_button_image" in _json.object["make"]) {
+        if (_json.object["make"]["home_button_image"].type().to!string == "string") {
+         char[][] __match_home_button_image_array
+            = (cast(char[]) _json.object["make"]["home_button_image"].str)
+              .split(rgx.make_heading_delimiter);
+          _struct_composite.make_str.home_button_image = __match_home_button_image_array.to!(string[]);
+        } else if (_json.object["make"]["home_button_image"].type().to!string == "array") {
+          string[] _match_home_button_image_array;
+          foreach (_match_heading; _json.object["make"]["home_button_image"].arrayNoRef) {
+            _match_home_button_image_array ~= _match_heading.str;
+          }
+          _struct_composite.make_str.home_button_image = _match_home_button_image_array;
+        }
+      }
+      if ("home_button_text" in _json.object["make"]) {
+        if (_json.object["make"]["home_button_text"].type().to!string == "string") {
+          _struct_composite.make_str.home_button_text = _json.object["make"]["home_button_text"].str;
+        } else if (_json.object["make"]["home_button_text"].type().to!string == "array") {
+          string[] _match_home_button_text_array;
+          foreach (_match_heading; _json.object["make"]["home_button_text"].arrayNoRef) {
+            _match_home_button_text_array ~= _match_heading.str;
+          }
+          string _match_home_button_text_str = (_match_home_button_text_array).join("; ");
+          _struct_composite.make_str.home_button_text = _match_home_button_text_str;
+        }
+      }
+      if ("italics" in _json.object["make"]
+        && (_json.object["make"]["italics"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.italics = _json.object["make"]["italics"].str;
+      }
+      if ("auto_num_top_at_level" in _json.object["make"] // str == A - D, 1 - 4
+        && (_json.object["make"]["auto_num_top_at_level"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.auto_num_top_at_level = _json.object["make"]["auto_num_top_at_level"].str;
+        switch (_json.object["make"]["auto_num_top_at_level"].str) {
+        case "A":
+          break;
+        case "B": _struct_composite.make_str.auto_num_top_lv = 1;
+          break;
+        case "C": _struct_composite.make_str.auto_num_top_lv = 2;
+          break;
+        case "D": _struct_composite.make_str.auto_num_top_lv = 3;
+          break;
+        case "1": _struct_composite.make_str.auto_num_top_lv = 4;
+          break;
+        case "2": _struct_composite.make_str.auto_num_top_lv = 5;
+          break;
+        case "3": _struct_composite.make_str.auto_num_top_lv = 6;
+          break;
+        case "4": _struct_composite.make_str.auto_num_top_lv = 7;
+          break;
+        default:
+          break;
+        }
+      }
+      if ("auto_num_depth" in _json.object["make"]) {
+        if (_json.object["make"]["auto_num_depth"].type().to!string == "int") { // TODO watch this match
+          _struct_composite.make_str.auto_num_depth = _json.object["make"]["auto_num_depth"].integer.to!int;
+        } else if (_json.object["make"]["auto_num_depth"].type().to!string == "string") {
+          _struct_composite.make_str.auto_num_depth = _json.object["make"]["auto_num_depth"].str.to!int;
+        }
+      }
+      if ("substitute" in _json.object["make"]) {
+        string[][] _sub;
+        if (_json.object["make"]["substitute"].type().to!string == "array") {
+          if (_json.object["make"]["substitute"][0].type().to!string == "array") {
+            foreach (substitute_pair; _json.object["make"]["substitute"].arrayNoRef) {
+              if ((substitute_pair.type().to!string) == "array") {
+                if (!empty(substitute_pair[0].str) && !empty(substitute_pair[1].str)) {
+                  _sub ~= [ substitute_pair[0].str,  substitute_pair[1].str];
+                }
+              }
+            }
+          } else if (_json.object["make"]["substitute"][0].type().to!string == "string") {
+             if (!empty(_json.object["make"]["substitute"][0].str) && !empty(_json.object["make"]["substitute"][1].str)) {
+               _sub = [[_json.object["make"]["substitute"][0].str, _json.object["make"]["substitute"][1].str]];
+             }
+          }
+        }
+        // writeln(_sub);
+        _struct_composite.make_str.substitute  = _sub;
+      }
+      if ("texpdf_font" in _json.object["make"]
+        && (_json.object["make"]["texpdf_font"].type().to!string == "string")
+      ) {
+        _struct_composite.make_str.texpdf_font  = _json.object["make"]["texpdf_font"].str;
+      }
+      _struct_composite.make.bold                     = _mk.bold(_struct_composite.make_str.bold);
+      _struct_composite.make.breaks                   = _mk.breaks(_struct_composite.make_str.breaks);
+      _struct_composite.make.cover_image              = _mk.cover_image(_struct_composite.make_str.cover_image);
+      _struct_composite.make.css                      = _mk.css(_struct_composite.make_str.css);
+      _struct_composite.make.emphasis                 = _mk.emphasis(_struct_composite.make_str.emphasis);
+      _struct_composite.make.footer                   = _mk.footer(_struct_composite.make_str.footer);
+      _struct_composite.make.headings                 = _mk.headings(_struct_composite.make_str.headings);
+      _struct_composite.make.home_button_image        = _mk.home_button_image(_struct_composite.make_str.home_button_image);
+      _struct_composite.make.home_button_text         = _mk.home_button_text(_struct_composite.make_str.home_button_text);
+      _struct_composite.make.italics                  = _mk.italics(_struct_composite.make_str.italics);
+      _struct_composite.make.auto_num_top_at_level    = _mk.auto_num_top_at_level(_struct_composite.make_str.auto_num_top_at_level);
+      _struct_composite.make.auto_num_top_lv          = _mk.auto_num_top_lv(_struct_composite.make_str.auto_num_top_lv);
+      _struct_composite.make.auto_num_depth           = _mk.auto_num_depth(_struct_composite.make_str.auto_num_depth);
+      _struct_composite.make.substitute               = _mk.substitute(_struct_composite.make_str.substitute);
+      _struct_composite.make.texpdf_font              = _mk.texpdf_font(_struct_composite.make_str.texpdf_font);
+    }
+    /+ conf ------------------------------------------------------------------- +/
+    if ("webserv" in _json.object) {
+      if ("data_root_url" in _json.object["webserv"]
+        && (_json.object["webserv"]["data_root_url"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_data_root_url = _json.object["webserv"]["data_root_url"].str;
+        if (auto m = _struct_composite.conf.w_srv_data_root_url.match(rgx.webserv_data_root_url)) {
+          _struct_composite.conf.w_srv_url_host = m.captures[2].to!string;
+          _struct_composite.conf.w_srv_url_doc_path = m.captures[3].to!string;
+        }
+      }
+      if ("images" in _json.object["webserv"]
+        && (_json.object["webserv"]["images"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_images = _json.object["webserv"]["images"].str;
+      }
+      if ("cgi" in _json.object["webserv"]
+        && (_json.object["webserv"]["cgi"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_cgi = _json.object["webserv"]["cgi"].str;
+      }
+      if ("cgi_host" in _json.object["webserv"]
+        && (_json.object["webserv"]["cgi_host"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_cgi_host = _json.object["webserv"]["cgi_host"].str;
+      }
+      if ("cgi_host_path" in _json.object["webserv"]
+        && (_json.object["webserv"]["cgi_host_path"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_cgi_host_path = _json.object["webserv"]["cgi_host_path"].str;
+      }
+      if ("cgi_port" in _json.object["webserv"]
+        && (_json.object["webserv"]["cgi_port"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_cgi_port = _json.object["webserv"]["cgi_port"].str;
+      }
+      if ("cgi_user" in _json.object["webserv"]
+        && (_json.object["webserv"]["cgi_user"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_cgi_user = _json.object["webserv"]["cgi_user"].str;
+      }
+      if ("cgi_file_links" in _json.object["webserv"]
+        && (_json.object["webserv"]["cgi_file_links"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.w_srv_cgi_file_links = _json.object["webserv"]["cgi_file_links"].str;
+      }
+    }
+    if ("processing" in _json.object) {
+      if ("path" in _json.object["processing"]
+        && (_json.object["processing"]["path"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.processing_path = _json.object["processing"]["path"].str;
+      }
+      if ("dir" in _json.object["processing"]
+        && (_json.object["processing"]["dir"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.processing_dir = _json.object["processing"]["dir"].str;
+      }
+      if ("concord_max" in _json.object["processing"]
+        && (_json.object["processing"]["concord_max"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.processing_concord_max = _json.object["processing"]["concord_max"].str;
+      }
+    }
+    if ("flag" in _json.object) {
+      if ("act0" in _json.object["flag"]
+        && (_json.object["flag"]["act0"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act0 = _json.object["flag"]["act0"].str;
+      }
+      if ("act1" in _json.object["flag"]
+        && (_json.object["flag"]["act1"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act1 = _json.object["flag"]["act1"].str;
+      }
+      if ("act2" in _json.object["flag"]
+        && (_json.object["flag"]["act2"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act2 = _json.object["flag"]["act2"].str;
+      }
+      if ("act3" in _json.object["flag"]
+        && (_json.object["flag"]["act3"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act3 = _json.object["flag"]["act3"].str;
+      }
+      if ("act4" in _json.object["flag"]
+        && (_json.object["flag"]["act4"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act4 = _json.object["flag"]["act4"].str;
+      }
+      if ("act5" in _json.object["flag"]
+        && (_json.object["flag"]["act5"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act5 = _json.object["flag"]["act5"].str;
+      }
+      if ("act6" in _json.object["flag"]
+        && (_json.object["flag"]["act6"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act6 = _json.object["flag"]["act6"].str;
+      }
+      if ("act7" in _json.object["flag"]
+        && (_json.object["flag"]["act7"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act7 = _json.object["flag"]["act7"].str;
+      }
+      if ("act8" in _json.object["flag"]
+        && (_json.object["flag"]["act8"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act8 = _json.object["flag"]["act8"].str;
+      }
+      if ("act9" in _json.object["flag"]
+        && (_json.object["flag"]["act9"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.flag_act9 = _json.object["flag"]["act9"].str;
+      }
+    }
+    if ("default" in _json.object) {
+      if ("papersize" in _json.object["default"]
+        && (_json.object["default"]["papersize"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.set_papersize = _json.object["default"]["papersize"].str;
+      }
+      if ("text_wrap" in _json.object["default"]
+        && (_json.object["default"]["text_wrap"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.set_text_wrap = _json.object["default"]["text_wrap"].str;
+      }
+      if ("emphasis" in _json.object["default"]
+        && (_json.object["default"]["emphasis"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.set_emphasis = _json.object["default"]["emphasis"].str;
+      }
+      if ("language" in _json.object["default"]
+        && (_json.object["default"]["language"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.set_language = _json.object["default"]["language"].str;
+      }
+      if ("digest" in _json.object["default"]
+        && (_json.object["default"]["digest"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.set_digest = _json.object["default"]["digest"].str;
+      }
+    }
+    if ("search" in _json.object) {
+      if ("flag" in _json.object["search"]
+        && (_json.object["search"]["flag"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.search_flag = _json.object["search"]["flag"].str;
+      }
+      if ("action" in _json.object["search"]
+        && (_json.object["search"]["action"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.search_action = _json.object["search"]["action"].str;
+      }
+      if ("db" in _json.object["search"]
+        && (_json.object["search"]["db"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.search_db = _json.object["search"]["db"].str;
+      }
+      if ("title" in _json.object["search"]
+        && (_json.object["search"]["title"].type().to!string == "string")
+      ) {
+        _struct_composite.conf.search_title = _json.object["search"]["title"].str;
+      }
+    }
+    /+ meta ------------------------------------------------------------------- +/
+    if (_struct_composite.meta.creator_author.empty) {
+      if ("creator" in _json.object) {
+        if ("author" in _json.object["creator"]
+          && (_json.object["creator"]["author"].type().to!string == "string")
+        ) {
+          _struct_composite.meta.creator_author = _json.object["creator"]["author"].str;
+        }
+        if ("email" in _json.object["creator"]
+          && (_json.object["creator"]["email"].type().to!string == "string")
+        ) {
+          _struct_composite.meta.creator_author_email = _json.object["creator"]["email"].str;
+        }
+        if ("illustrator" in _json.object["creator"]
+          && (_json.object["creator"]["illustrator"].type().to!string == "string")
+        ) {
+          _struct_composite.meta.creator_illustrator = _json.object["creator"]["illustrator"].str;
+        }
+        if ("translator" in _json.object["creator"]
+          && (_json.object["creator"]["translator"].type().to!string == "string")
+        ) {
+          _struct_composite.meta.creator_translator = _json.object["creator"]["translator"].str;
+        }
+      }
+      string[] author_arr;
+      string[][string] authors_hash_arr = [ "first" : [], "last" : [], "full" : [], "last_first" : [], "as_input" : [] ];
+      string[] authors_raw_arr
+        = _struct_composite.meta.creator_author.split(rgx.arr_delimiter);
+      auto _lastname = appender!(char[])();
+      foreach (author_raw; authors_raw_arr) {
+        if (auto m = author_raw.match(rgx.raw_author_munge)) {
+          author_arr                   ~= author_raw.replace(rgx.raw_author_munge, "$2 $1");
+          authors_hash_arr["first"]    ~= author_raw.replace(rgx.raw_author_munge, "$2");
+          authors_hash_arr["last"]     ~= author_raw.replace(rgx.raw_author_munge, "$1");
+          authors_hash_arr["full"]     ~= author_raw.replace(rgx.raw_author_munge, "$2 $1");
+          (m.captures[1]).map!toUpper.copy(_lastname);
+          authors_hash_arr["last_first"] ~= _lastname.data.to!string ~ ", " ~ m.captures[2];
+          _lastname = appender!(char[])();
+        } {
+          author_arr                     ~= author_raw;
+          authors_hash_arr["last"]       ~= author_raw;
+          authors_hash_arr["full"]       ~= author_raw;
+          authors_hash_arr["last_first"] ~= author_raw;
+        }
+        authors_hash_arr["as_input"] ~= author_raw;
+      }
+      _struct_composite.meta.creator_author_arr = author_arr;
+      _struct_composite.meta.creator_author     = author_arr.join(", ").chomp.chomp;
+      _struct_composite.meta.creator_author_surname = (authors_hash_arr["last"].length > 0) ? authors_hash_arr["last"][0] : "";
+      string _author_name_last_first = authors_hash_arr["last_first"].join("; ").chomp.chomp;
+      _struct_composite.meta.creator_author_surname_fn = (_author_name_last_first.length > 0)
+      ? _author_name_last_first
+      : authors_hash_arr["as_input"].join("; ").chomp.chomp;
+    }
+    if (_struct_composite.meta.title_main.empty) {
+      if ("title" in _json.object) {
+        if ((_json.object["title"].type().to!string) == "string") {
+          _struct_composite.meta.title_main = _json.object["title"].str;
+        } else {
+          if ("edition" in _json.object["title"]
+            && (_json.object["title"]["edition"].type().to!string == "string")
+          ) {
+            _struct_composite.meta.title_edition = _json.object["title"]["edition"].str;
+          }
+          if ("full" in _json.object["title"]
+            && (_json.object["title"]["full"].type().to!string == "string")
+          ) {}
+          if ("language" in _json.object["title"]
+            && (_json.object["title"]["language"].type().to!string == "string")
+          ) {
+            _struct_composite.meta.title_language = _json.object["title"]["language"].str;
+          }
+          if ("main" in _json.object["title"]
+            && (_json.object["title"]["main"].type().to!string == "string")
+          ) {
+            _struct_composite.meta.title_main = _json.object["title"]["main"].str;
+          } else if ("title" in _json.object["title"]
+            && (_json.object["title"]["title"].type().to!string == "string")
+          ) {
+            _struct_composite.meta.title_main = _json.object["title"]["title"].str;
+          }
+          if ("note" in _json.object["title"]
+            && (_json.object["title"]["note"].type().to!string == "string")
+          ) {
+            _struct_composite.meta.title_note = _json.object["title"]["note"].str;
+          }
+          if ("sub" in _json.object["title"]
+            && (_json.object["title"]["sub"].type().to!string == "string")
+          ) {
+            _struct_composite.meta.title_sub = _json.object["title"]["sub"].str;
+          }
+          if ("subtitle" in _json.object["title"]
+            && (_json.object["title"]["subtitle"].type().to!string == "string")
+          ) {
+            _struct_composite.meta.title_subtitle = _json.object["title"]["subtitle"].str;
+          }
+        }
+      }
+      if ((!(_struct_composite.meta.title_subtitle.empty))
+      && (_struct_composite.meta.title_sub.empty)) {
+        _struct_composite.meta.title_sub = _struct_composite.meta.title_subtitle;
+      }
+      _struct_composite.meta.title_full = (_struct_composite.meta.title_sub.empty)
+      ? _struct_composite.meta.title_main
+      : format(
+          "%s - %s",
+          _struct_composite.meta.title_main,
+          _struct_composite.meta.title_sub,
+        );
+    }
+    if ("classify" in _json.object) {
+      if ("dewey" in _json.object["classify"]
+        && (_json.object["classify"]["dewey"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.classify_dewey = _json.object["classify"]["dewey"].str;
+      }
+      if ("keywords" in _json.object["classify"]
+        && (_json.object["classify"]["keywords"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.classify_keywords = _json.object["classify"]["keywords"].str;
+      }
+      if ("loc" in _json.object["classify"]
+        && (_json.object["classify"]["loc"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.classify_loc = _json.object["classify"]["loc"].str;
+      }
+      if ("subject" in _json.object["classify"]
+        && (_json.object["classify"]["subject"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.classify_subject = _json.object["classify"]["subject"].str;
+      }
+      if ("topic_register" in _json.object["classify"]
+        && (_json.object["classify"]["topic_register"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.classify_topic_register = _json.object["classify"]["topic_register"].str.strip;
+        string[] main_topics_ = _struct_composite.meta.classify_topic_register.strip.split(rgx.topic_register_main_terms_split);
+        string[] topics;
+        string   topics_tmp;
+        string[] multiple_sub_terms;
+        foreach (mt; main_topics_) {
+          topics_tmp = mt.replaceAll(rgx.topic_register_main_term_plus_rest_split,    mkup.sep);
+          if (auto m = topics_tmp.match(rgx.topic_register_multiple_sub_terms_split)) {
+            multiple_sub_terms = m.captures[1].split(rgx.topic_register_sub_terms_split);
+            foreach (subterm; multiple_sub_terms) {
+              topics ~= m.captures.pre ~ mkup.sep ~ subterm;
+            }
+          } else {
+            topics ~= topics_tmp;
+          }
+        }
+        _struct_composite.meta.classify_topic_register_arr = topics;
+      }
+    }
+    if ("date" in _json.object) {
+      if ("added_to_site" in _json.object["date"]
+        && (_json.object["date"]["added_to_site"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.date_added_to_site = _json.object["date"]["added_to_site"].str;
+      }
+      if ("available" in _json.object["date"]
+        && (_json.object["date"]["available"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.date_available = _json.object["date"]["available"].str;
+      }
+      if ("created" in _json.object["date"]
+        && (_json.object["date"]["created"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.date_created = _json.object["date"]["created"].str;
+      }
+      if ("issued" in _json.object["date"]
+        && (_json.object["date"]["issued"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.date_issued = _json.object["date"]["issued"].str;
+      }
+      if ("modified" in _json.object["date"]
+        && (_json.object["date"]["modified"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.date_modified = _json.object["date"]["modified"].str;
+      }
+      if ("published" in _json.object["date"]
+        && (_json.object["date"]["published"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.date_published = _json.object["date"]["published"].str;
+      }
+      if ("valid" in _json.object["date"]
+        && (_json.object["date"]["valid"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.date_valid = _json.object["date"]["valid"].str;
+      }
+      _struct_composite.meta.language_document_char = _manifested.src.language;
+    }
+    if ("links" in _json.object) {}
+    if ("notes" in _json.object) {
+      if ("abstract" in _json.object["notes"]
+        && (_json.object["notes"]["abstract"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.notes_abstract = _json.object["notes"]["abstract"].str;
+      }
+      if ("description" in _json.object["notes"]
+        && (_json.object["notes"]["description"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.notes_description = _json.object["notes"]["description"].str;
+      }
+    }
+    if ("original" in _json.object) {
+      if ("language" in _json.object["original"]
+        && (_json.object["original"]["language"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.original_language = _json.object["original"]["language"].str;
+      }
+      if ("language_char" in _json.object["original"]
+        && (_json.object["original"]["language_char"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.original_language_char = _json.object["original"]["language_char"].str;
+      }
+      if ("source" in _json.object["original"]
+        && (_json.object["original"]["source"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.original_source = _json.object["original"]["source"].str;
+      }
+      if ("title" in _json.object["original"]
+        && (_json.object["original"]["title"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.original_title = _json.object["original"]["title"].str;
+      }
+    }
+    if ("publisher" in _json.object) {}
+    if ("rights" in _json.object) {
+      if ("copyright" in _json.object["rights"]
+        && (_json.object["rights"]["copyright"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright = _json.object["rights"]["copyright"].str;
+      }
+      if ("copyright_text" in _json.object["rights"]
+        && (_json.object["rights"]["copyright_text"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright_text = _json.object["rights"]["copyright_text"].str;
+      }
+      if ("copyright_audio" in _json.object["rights"]
+        && (_json.object["rights"]["copyright_audio"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright_audio = _json.object["rights"]["copyright_audio"].str;
+      }
+      if ("copyright_cover" in _json.object["rights"]
+        && (_json.object["rights"]["copyright_cover"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright_cover = _json.object["rights"]["copyright_cover"].str;
+      }
+      if ("copyright_illustrations" in _json.object["rights"]
+        && (_json.object["rights"]["copyright_illustrations"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright_illustrations = _json.object["rights"]["copyright_illustrations"].str;
+      }
+      if ("copyright_photographs" in _json.object["rights"]
+        && (_json.object["rights"]["copyright_photographs"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright_photographs = _json.object["rights"]["copyright_photographs"].str;
+      }
+      if ("copyright_translation" in _json.object["rights"]
+        && (_json.object["rights"]["copyright_translation"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright_translation = _json.object["rights"]["copyright_translation"].str;
+      }
+      if ("copyright_video" in _json.object["rights"]
+        && (_json.object["rights"]["copyright_video"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_copyright_video = _json.object["rights"]["copyright_video"].str;
+      }
+      if ("license" in _json.object["rights"]
+        && (_json.object["rights"]["license"].type().to!string == "string")
+      ) {
+        _struct_composite.meta.rights_license = _json.object["rights"]["license"].str;
+      }
+    }
+    return _struct_composite;
+  }
+}
diff --git a/src/sisudoc/meta/conf_make_meta_structs.d b/src/sisudoc/meta/conf_make_meta_structs.d
new file mode 100644
index 0000000..5322220
--- /dev/null
+++ b/src/sisudoc/meta/conf_make_meta_structs.d
@@ -0,0 +1,316 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.conf_make_meta_structs;
+@safe:
+import
+  std.exception,
+  std.json,
+  std.path,
+  std.regex,
+  std.stdio,
+  std.string,
+  std.typecons,
+  std.utf,
+  std.conv : to;
+import
+  sisudoc.meta.defaults,
+  sisudoc.meta.rgx_yaml,
+  sisudoc.meta.rgx;
+mixin spineRgxIn;
+static auto rgx = RgxI();
+mixin spineRgxYamlTags;
+static auto rgx_y = RgxYaml();
+mixin InternalMarkup;
+static auto mkup = InlineMarkup();
+string url_markup(string line) {
+  string line_ = line
+    .replaceAll(
+      rgx.smid_inline_link_markup_regular,
+      ("$1"
+        ~ mkup.lnk_o ~ "$2" ~ mkup.lnk_c
+        ~ mkup.url_o ~ "$3" ~ mkup.url_c
+      ) // ("$1{ $2 }$3$4")
+    )
+    .replaceAll(
+        rgx.smid_inline_link_naked_url,
+        ("$1"
+          ~ mkup.lnk_o ~ "$2" ~ mkup.lnk_c
+          ~ mkup.url_o ~ "$2" ~ mkup.url_c
+        ) // ("$1{ $2 }$2$3")
+    )
+    .replaceAll(
+       rgx.arr_delimiter,
+       mkup.br_line
+    );
+  return line_;
+}
+struct ConfCompositeMakeStr {
+  string     doc_type = "book"; // book, article
+  string     breaks;
+  string     bold;
+  string     cover_image;
+  string     css;
+  string     emphasis;
+  string[]   footer;
+  string[]   headings;
+  string[]   home_button_image;
+  string     home_button_text = "┥Spine, Doc Reform┝┤https://www.doc-reform.org├"
+    ~ " ┥www.doc-reform.org┝┤https://www.doc-reform.org├"
+    ~ " ┥sources / git┝┤https://git.doc-reform.org/software/spine├";
+  string     italics;
+  string     auto_num_top_at_level;
+  int        auto_num_top_lv           = 9;
+  int        auto_num_depth            = 2;
+  string[][] substitute;
+  string     texpdf_font;
+}
+@trusted struct confCompositeMakeBuild {
+  string[] bold(string _mk) {
+    string[] _out;
+    if (_mk) {
+      _out = [ (cast(string) (`(` ~ _mk.dup ~ `)`)), "*{$1}*", "<b>$1</b>"];
+    }
+    return _out;
+  }
+  string doc_type(string _mk) {
+    return _mk;
+  }
+  string breaks(string _mk) {
+    return _mk;
+  }
+  string cover_image(string _mk) {
+    return _mk;
+  }
+  string css(string _mk) {
+    return _mk;
+  }
+  string[] emphasis(string _mk) {
+    string[] _out;
+    if (_mk) {
+      _out = [ (cast(string) (`(` ~ _mk.dup ~ `)`)), "!{$1}!", "<em>$1</em>" ];
+    }
+    return _out;
+  }
+  string[] footer(string[] _mk) {
+    string line_;
+    string[] _mk2;
+    foreach (line; _mk) {
+      _mk2 ~= url_markup(line);
+    }
+    return _mk2;
+  }
+  string[] headings(string[] _mk) {
+    return _mk;
+  }
+  string[] home_button_image(string[] _mk) {
+    return _mk;
+  }
+  string home_button_text(string _mk) {
+    return url_markup(_mk);
+  }
+  string[] italics(string _mk) {
+    string[] _out;
+    if (_mk) {
+      _out = [ (cast(string) (`(` ~ _mk.dup ~ `)`)), "/{$1}/", "<i>$1</i>" ];
+    }
+    return _out;
+  }
+  string auto_num_top_at_level(string _mk) {
+    return _mk;
+  }
+  int auto_num_top_lv(int _mk) {
+    return _mk;
+  }
+  int auto_num_depth(int _mk) {
+    return _mk;
+  }
+  string[][] substitute(string[][] _mk) {
+    return _mk;
+  }
+  string texpdf_font(string _mk) {
+    return _mk;
+  }
+}
+struct ConfCompositeMakeInit {
+  string     doc_type;
+  string     breaks;
+  string     cover_image;
+  string     css;
+  string[]   bold;
+  string[]   emphasis;
+  string[]   footer;
+  string[]   headings;
+  string[]   home_button_image;
+  string     home_button_text = "┥Spine, Doc Reform┝┤https://www.doc-reform.org├"
+    ~ " ┥www.doc-reform.org┝┤https://www.doc-reform.org├"
+    ~ " ┥sources / git┝┤https://git.doc-reform.org/software/spine├";
+  string[] italics;
+  string     auto_num_top_at_level;
+  int        auto_num_top_lv               = 9;
+  int        auto_num_depth                = 2;
+  string[][] substitute;
+  string     texpdf_font;
+}
+struct ConfCompositeSiteLocal {
+  string   w_srv_http;
+  string   w_srv_host;
+  string   w_srv_data_http;            // if not set same as webserv_http
+  string   w_srv_data_host;            // if not set same as webserv_host
+  string   w_srv_data_root_part;
+  string   w_srv_data_root_url;
+  string   w_srv_data_root_url_html;
+  string   w_srv_data_root_path;
+  string   w_srv_images_root_part;
+  // string   w_srv_url_doc_path;
+  string   w_srv_cgi_search_form_title;
+  string   w_srv_cgi_http;             // if not set same as webserv_http
+  string   w_srv_cgi_host;             // if not set same as webserv_host
+  string   w_srv_cgi_bin_subpath;
+  string   w_srv_cgi_bin_path;
+  string   w_srv_cgi_search_script;
+  string   w_srv_cgi_search_script_raw_fn_d;
+  string   w_srv_cgi_port;
+  string   w_srv_cgi_user;
+  string   w_srv_cgi_action;
+  string   w_srv_cgi_bin_url;
+  string   w_srv_db_sqlite_filename;
+  string   w_srv_db_sqlite_path;
+  // string   w_srv_db_pg;
+  string   w_srv_db_pg_table;
+  string   w_srv_db_pg_user;
+  // string   webserv_cgi_file_links;
+  string   output_path;
+  string   processing_path;
+  string   processing_dir;
+  string   processing_concord_max;
+  string   flag_act0;
+  string   flag_act1;
+  string   flag_act2;
+  string   flag_act3;
+  string   flag_act4;
+  string   flag_act5;
+  string   flag_act6;
+  string   flag_act7;
+  string   flag_act8;
+  string   flag_act9;
+  string[] set_papersize;
+  string   set_text_wrap;
+  string   set_emphasis;
+  string   set_language;
+  string   set_digest;
+  string   permission_share_source;
+  string   search_flag;
+  string   search_action;
+  string   search_db;
+  string   search_title;
+}
+struct MetaComposite {
+  string   classify_dewey;
+  string   classify_keywords;
+  string   classify_loc;
+  string   classify_subject;
+  string   classify_topic_register;
+  string[] classify_topic_register_arr;
+  string[] classify_topic_register_expanded_arr; // experimental use in sqlite topics table
+  string[] creator_author_arr;
+  string   creator_author;
+  string   creator_author_surname_fn;
+  string   creator_author_surname;
+  string   creator_author_email;
+  string   creator_illustrator;
+  string   creator_translator;
+  string   date_added_to_site;
+  string   date_available;
+  string   date_created;
+  string   date_issued;
+  string   date_modified;
+  string   date_published;
+  string   date_valid;
+  string   identifier_isbn;
+  string   identifier_oclc;
+  string   identifier_pg;
+  string   language_document;
+  string   language_document_char;
+  string   links;
+  string   notes_abstract;
+  string   notes_description;
+  string   notes_summary;
+  string   original_language;
+  string   original_language_char;
+  string   original_publisher;
+  string   original_source;
+  string   original_title;
+  string   publisher;
+  string   rights_copyright;
+  string   rights_copyright_audio;
+  string   rights_copyright_cover;
+  string   rights_copyright_illustrations;
+  string   rights_copyright_photographs;
+  string   rights_copyright_text;
+  string   rights_copyright_translation;
+  string   rights_copyright_video;
+  string   rights_license;
+  string   title_edition;
+  string   title_full;
+  string   title_language;
+  string   title_main;
+  string   title_note;
+  string   title_short;
+  string   title_sub;
+  string   title_subtitle;
+}
+struct ConfComposite {
+  MetaComposite               meta;
+  ConfCompositeMakeInit       make;
+  ConfCompositeMakeStr        make_str;
+  ConfCompositeSiteLocal      conf;
+}
+JSONValue config_jsonstr = `{
+}`;
diff --git a/src/sisudoc/meta/conf_make_meta_yaml.d b/src/sisudoc/meta/conf_make_meta_yaml.d
new file mode 100644
index 0000000..ac97a21
--- /dev/null
+++ b/src/sisudoc/meta/conf_make_meta_yaml.d
@@ -0,0 +1,1277 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  yaml headers<BR>
+  extract yaml header return struct
++/
+module sisudoc.meta.conf_make_meta_yaml;
+@safe:
+template contentYAMLtoSpineStruct() {
+  import
+    std.algorithm,
+    std.array,
+    std.exception,
+    std.path,
+    std.regex,
+    std.stdio,
+    std.string,
+    std.typecons,
+    std.utf,
+    std.conv : to;
+  import
+    sisudoc.meta.conf_make_meta_structs,
+    sisudoc.meta.defaults,
+    sisudoc.meta.rgx_yaml,
+    sisudoc.meta.rgx;
+  ConfComposite _struct_composite;
+  @system auto contentYAMLtoSpineStruct(C,Y,M,O,Cfg)(
+    C      _struct_composite,
+    Y      _yaml,
+    M      _manifested,
+    O      _opt_action,
+    Cfg    _cfg,
+    string _identifier
+  ) {
+    mixin spineRgxIn;
+    static auto rgx = RgxI();
+    mixin spineRgxYamlTags;
+    static auto rgx_y = RgxYaml();
+    string check_input_markup()(
+      string _txt,
+    ) {
+      _txt = _txt
+       .replaceAll(regex(r"\\"), mkup.br_line_inline)
+       .strip;
+      return _txt;
+    }
+    confCompositeMakeBuild _mk;
+    if (_identifier != "header") { // called only once per run anyway
+      /+ conf ------------------------------------------------------------------- +/
+      /+
+       _cfg. build defaults (else program runtime defaults)
+       local_site_configuration defaults
+       command line overrides
+      +/
+      {
+        if (_opt_action.webserver_http.length > 0) {
+          _struct_composite.conf.w_srv_http
+            = _opt_action.webserver_http;
+        } else {
+          _struct_composite.conf.w_srv_http
+            = (_cfg.http_request_type.empty)
+              ? "http"
+              : _cfg.http_request_type;
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("http" in _yaml["webserv"]
+              && _yaml["webserv"]["http"].type.string
+              && _yaml["webserv"]["http"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_http
+                = _yaml["webserv"]["http"].get!string;
+            }
+          }
+        }
+        if (_opt_action.cgi_search_title.length > 0) {
+          _struct_composite.conf.w_srv_cgi_search_form_title
+            = _opt_action.cgi_search_title;
+        } else {
+          _struct_composite.conf.w_srv_cgi_search_form_title
+            = (_cfg.cgi_search_form_title.empty)
+              ? "≅ SiSU spine search form"
+              : _cfg.cgi_search_form_title;
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("cgi_search_form_title" in _yaml["webserv"]
+              && _yaml["webserv"]["cgi_search_form_title"].type.string
+              && _yaml["webserv"]["cgi_search_form_title"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_cgi_search_form_title
+                = _yaml["webserv"]["cgi_search_form_title"].get!string;
+            }
+          }
+        }
+        if (_opt_action.cgi_sqlite_search_filename.length > 0) {
+          _struct_composite.conf.w_srv_cgi_search_script
+            = _opt_action.cgi_sqlite_search_filename;
+        } else {
+          _struct_composite.conf.w_srv_cgi_search_script
+            = (_cfg.cgi_filename.empty)
+              ? "spine_search"
+              : _cfg.cgi_filename;
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("cgi_search_script" in _yaml["webserv"]
+              && _yaml["webserv"]["cgi_search_script"].type.string
+              && _yaml["webserv"]["cgi_search_script"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_cgi_search_script
+                = _yaml["webserv"]["cgi_search_script"].get!string;
+            }
+          }
+        }
+        if (_opt_action.sqliteDB_filename.length > 0) {
+          _struct_composite.conf.w_srv_db_sqlite_filename
+            = _opt_action.sqliteDB_filename;
+        } else {
+          _struct_composite.conf.w_srv_db_sqlite_filename
+            = (_cfg.db_sqlite_filename.empty)
+              ?  "spine.search.db"
+              : _cfg.db_sqlite_filename;
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("db_sqlite_filename" in _yaml["webserv"]
+              && _yaml["webserv"]["db_sqlite_filename"].type.string
+              && _yaml["webserv"]["db_sqlite_filename"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_db_sqlite_filename
+                = _yaml["webserv"]["db_sqlite_filename"].get!string;
+            }
+          }
+        }
+        if (_opt_action.sqliteDB_path.length > 0) {
+          _struct_composite.conf.w_srv_db_sqlite_path
+            = _opt_action.sqliteDB_path;
+        } else {
+          _struct_composite.conf.w_srv_db_sqlite_path
+            = (_cfg.db_sqlite_path.empty)
+              ?  "/var/www/sqlite"
+              : _cfg.db_sqlite_path;
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("db_sqlite_path" in _yaml["webserv"]
+              && _yaml["webserv"]["db_sqlite_path"].type.string
+              && _yaml["webserv"]["db_sqlite_path"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_db_sqlite_path
+                = _yaml["webserv"]["db_sqlite_path"].get!string;
+            }
+          }
+        }
+        if (_opt_action.cgi_url_action.length > 0) {
+          _struct_composite.conf.w_srv_cgi_action
+            = _opt_action.cgi_url_action;
+        } else {
+          _struct_composite.conf.w_srv_cgi_action
+            = (_cfg.www_url_doc_root.empty)
+              ?  "http://locahost" // "https://sisudoc.org"
+              : _cfg.www_url_doc_root;
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("cgi_action" in _yaml["webserv"]
+              && _yaml["webserv"]["cgi_action"].type.string
+              && _yaml["webserv"]["cgi_action"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_cgi_action
+                = _yaml["webserv"]["cgi_action"].get!string;
+            } else if (_opt_action.cgi_sqlite_search_filename.length > 0) {
+              _struct_composite.conf.w_srv_cgi_action
+                = _struct_composite.conf.w_srv_cgi_bin_url ~ "/" ~ _opt_action.cgi_sqlite_search_filename;
+            }
+          }
+        }
+        if (!(_struct_composite.conf.output_path)) {
+          _struct_composite.conf.output_path = ((_manifested.output.path).asNormalizedPath).array;
+        } {
+          if (_opt_action.output_dir_set.length > 0) {
+            _struct_composite.conf.output_path
+              = (_opt_action.output_dir_set.asNormalizedPath).array;
+          } else {
+            _struct_composite.conf.output_path
+              = (_cfg.processing_path_doc_root.empty)
+                ?  "/srv/www/spine"
+                : _cfg.processing_path_doc_root;
+            if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+              && (_yaml["webserv"].type.mapping
+                && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+            ) {
+              if (_yaml["output"].type.mapping
+                && _yaml["output"].tag.match(rgx_y.yaml_tag_is_map)
+              ) {
+                if ("path" in _yaml["output"]
+                  && _yaml["output"]["path"].type.string
+                  && _yaml["output"]["path"].tag.match(rgx_y.yaml_tag_is_str)
+                ) {
+                  if (_manifested.output.path == _manifested.env.pwd
+                    && _yaml["output"]["path"].get!string.length > 0
+                  ) {
+                    _struct_composite.conf.output_path = (((_yaml["output"]["path"].get!string).expandTilde).asNormalizedPath).array;
+                  }
+                }
+              }
+            }
+          }
+          if (_opt_action.webserver_host_doc_root.length > 0) { // same as output_path immediately above, resolve FIX REMOVE
+            _struct_composite.conf.w_srv_data_root_path
+              = _opt_action.webserver_host_doc_root;
+          } else {
+            _struct_composite.conf.w_srv_data_root_path
+              = (_cfg.processing_path_doc_root.empty)
+                ? "/var/www/spine"
+                : _cfg.processing_path_doc_root;
+            if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+              && (_yaml["webserv"].type.mapping
+                && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+            ) {
+              if ("data_root_path" in _yaml["webserv"]
+                && _yaml["webserv"]["data_root_path"].type.string
+                && _yaml["webserv"]["data_root_path"].tag.match(rgx_y.yaml_tag_is_str)
+              ) {
+                _struct_composite.conf.w_srv_data_root_path
+                  = _yaml["webserv"]["data_root_path"].get!string;
+              }
+            }
+          }
+        }
+        if (_opt_action.cgi_bin_root.length > 0) {
+          _struct_composite.conf.w_srv_cgi_bin_path
+            = _opt_action.cgi_bin_root;
+        } else {
+          _struct_composite.conf.w_srv_cgi_bin_path
+            = (_cfg.cgi_bin_root.empty)
+              ? "/var/www/cgi/cgi-bin"
+              : _cfg.cgi_bin_root;
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("cgi_bin_path" in _yaml["webserv"]
+              && _yaml["webserv"]["cgi_bin_path"].type.string
+              && _yaml["webserv"]["cgi_bin_path"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_cgi_bin_path
+                = _yaml["webserv"]["cgi_bin_path"].get!string;
+            }
+          }
+        }
+        { _struct_composite.conf.w_srv_data_root_part
+            = "";
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("data_root_part" in _yaml["webserv"]
+              && _yaml["webserv"]["data_root_part"].type.string
+              && _yaml["webserv"]["data_root_part"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_data_root_part = _yaml["webserv"]["data_root_part"].get!string;
+            }
+          }
+        }
+        { _struct_composite.conf.w_srv_images_root_part
+            = "image";
+          if (("webserv" in _yaml && _yaml["webserv"].type.sequence)
+            && (_yaml["webserv"].type.mapping
+              && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+          ) {
+            if ("images_root_part" in _yaml["webserv"]
+              && _yaml["webserv"]["images_root_part"].type.string
+              && _yaml["webserv"]["images_root_part"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.conf.w_srv_images_root_part = _yaml["webserv"]["images_root_part"].get!string;
+            }
+          }
+        }
+      }
+      if (("webserv" in _yaml
+        && _yaml["webserv"].type.sequence)
+        && (_yaml["webserv"].type.mapping
+          && _yaml["webserv"].tag.match(rgx_y.yaml_tag_is_map))
+      ) { // cannot be used as is with opt_action FIX look at remaining, decide what to do later
+          if ("data_http" in _yaml["webserv"]
+            && _yaml["webserv"]["data_http"].type.string
+            && _yaml["webserv"]["data_http"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_data_http = _yaml["webserv"]["data_http"].get!string;
+          }
+          // if (_opt_action.*.length > 0) {
+          if ("cgi_http" in _yaml["webserv"]
+            && _yaml["webserv"]["cgi_http"].type.string
+            && _yaml["webserv"]["cgi_http"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_cgi_http = _yaml["webserv"]["cgi_http"].get!string;
+          }
+          // if (_opt_action.*.length > 0) {
+          if ("host" in _yaml["webserv"]
+            && _yaml["webserv"]["host"].type.string
+            && _yaml["webserv"]["host"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_host = _yaml["webserv"]["host"].get!string;
+          }
+          if ("data_root_url" in _yaml["webserv"]
+            && _yaml["webserv"]["data_root_url"].type.string
+            && _yaml["webserv"]["data_root_url"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_data_root_url      = _yaml["webserv"]["data_root_url"].get!string;
+            _struct_composite.conf.w_srv_data_root_url_html =
+              _yaml["webserv"]["data_root_url"].get!string
+              ~ _struct_composite.conf.w_srv_data_root_part ~ "/"
+              ~ _manifested.src.language ~ "/"
+              ~ "html";
+          } else {
+            _struct_composite.conf.w_srv_data_root_url =  _struct_composite.conf.w_srv_data_root_part;
+            _struct_composite.conf.w_srv_data_root_url_html =
+              _struct_composite.conf.w_srv_data_root_part ~ "/"
+              ~ _manifested.src.language ~ "/"
+              ~ "html";
+          }
+          if ("cgi_host" in _yaml["webserv"]
+            && _yaml["webserv"]["cgi_host"].type.string
+            && _yaml["webserv"]["cgi_host"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_cgi_host = _yaml["webserv"]["cgi_host"].get!string;
+          } else { // composite construct
+            _struct_composite.conf.w_srv_cgi_host = _struct_composite.conf.w_srv_host;
+          }
+          if ("cgi_bin_subpath" in _yaml["webserv"]
+            && _yaml["webserv"]["cgi_bin_subpath"].type.string
+            && _yaml["webserv"]["cgi_bin_subpath"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_cgi_bin_subpath = _yaml["webserv"]["cgi_bin_subpath"].get!string;
+          }
+          if ("cgi_port" in _yaml["webserv"]
+            && _yaml["webserv"]["cgi_port"].type.string
+            && _yaml["webserv"]["cgi_port"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_cgi_port = _yaml["webserv"]["cgi_port"].get!string;
+          }
+          if ("cgi_user" in _yaml["webserv"]
+            && _yaml["webserv"]["cgi_user"].type.string
+            && _yaml["webserv"]["cgi_user"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_cgi_user = _yaml["webserv"]["cgi_user"].get!string;
+          }
+          if ("cgi_bin_url" in _yaml["webserv"]
+            && _yaml["webserv"]["cgi_bin_url"].type.string
+            && _yaml["webserv"]["cgi_bin_url"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.w_srv_cgi_bin_url = _yaml["webserv"]["cgi_bin_url"].get!string;
+          } else {
+            _struct_composite.conf.w_srv_cgi_bin_url =
+              (_struct_composite.conf.w_srv_cgi_http.empty)
+                ? _struct_composite.conf.w_srv_http
+                :_struct_composite.conf.w_srv_cgi_http
+              ~ "://"
+              ~ (_struct_composite.conf.w_srv_cgi_host.empty)
+                ? _struct_composite.conf.w_srv_cgi_host
+                : _struct_composite.conf.w_srv_host
+              ~ _struct_composite.conf.w_srv_cgi_bin_subpath;
+          }
+          // if ("cgi_file_links" in _yaml["webserv"]
+          //   && _yaml["webserv"]["cgi_file_links"].type.string
+          //   && _yaml["webserv"]["cgi_file_links"].tag.match(rgx_y.yaml_tag_is_str)
+          // ) {
+          //   _struct_composite.conf.w_srv_cgi_file_links = _yaml["webserv"]["cgi_file_links"].get!string;
+          // }
+      }
+      // make (in: conf, make, meta)?
+      if ("processing" in _yaml
+        && _yaml["processing"].type.sequence
+      ) {
+        if (_yaml["processing"].type.mapping
+          && _yaml["processing"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("concord_max" in _yaml["processing"]
+            && _yaml["processing"]["concord_max"].type.string
+            && _yaml["processing"]["concord_max"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.processing_concord_max = _yaml["processing"]["concord_max"].get!string;
+          }
+        }
+      }
+      if ("flag" in _yaml
+        && _yaml["flag"].type.sequence
+      ) {
+        if (_yaml["flag"].type.mapping
+          && _yaml["flag"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("act0" in _yaml["flag"]
+            && _yaml["flag"]["act0"].type.string
+            && _yaml["flag"]["act0"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act0 = _yaml["flag"]["act0"].get!string;
+          }
+          if ("act1" in _yaml["flag"]
+            && _yaml["flag"]["act1"].type.string
+            && _yaml["flag"]["act1"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act1 = _yaml["flag"]["act1"].get!string;
+          }
+          if ("act2" in _yaml["flag"]
+            && _yaml["flag"]["act2"].type.string
+            && _yaml["flag"]["act2"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act2 = _yaml["flag"]["act2"].get!string;
+          }
+          if ("act3" in _yaml["flag"]
+            && _yaml["flag"]["act3"].type.string
+            && _yaml["flag"]["act3"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act3 = _yaml["flag"]["act3"].get!string;
+          }
+          if ("act4" in _yaml["flag"]
+            && _yaml["flag"]["act4"].type.string
+            && _yaml["flag"]["act4"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act4 = _yaml["flag"]["act4"].get!string;
+          }
+          if ("act5" in _yaml["flag"]
+            && _yaml["flag"]["act5"].type.string
+            && _yaml["flag"]["act5"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act5 = _yaml["flag"]["act5"].get!string;
+          }
+          if ("act6" in _yaml["flag"]
+            && _yaml["flag"]["act6"].type.string
+            && _yaml["flag"]["act6"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act6 = _yaml["flag"]["act6"].get!string;
+          }
+          if ("act7" in _yaml["flag"]
+            && _yaml["flag"]["act7"].type.string
+            && _yaml["flag"]["act7"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act7 = _yaml["flag"]["act7"].get!string;
+          }
+          if ("act8" in _yaml["flag"]
+            && _yaml["flag"]["act8"].type.string
+            && _yaml["flag"]["act8"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act8 = _yaml["flag"]["act8"].get!string;
+          }
+          if ("act9" in _yaml["flag"]
+            && _yaml["flag"]["act9"].type.string
+            && _yaml["flag"]["act9"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.flag_act9 = _yaml["flag"]["act9"].get!string;
+          }
+        }
+      }
+      string[] selected_papersize(string _sizes_str) {
+        string[] _sizes = _sizes_str.split(regex(r"\s*,\s*"));
+        string[] _selected_sizes;
+        foreach (_size; _sizes) {
+          switch (_size) {
+            case "a4":
+              _selected_sizes ~= "a4.portrait";
+              _selected_sizes ~= "a4.landscape";
+              break;
+            case "a4.portrait":
+              _selected_sizes ~= _size;
+              break;
+            case "a4.landscape":
+              _selected_sizes ~= _size;
+              break;
+            case "b4":
+              _selected_sizes ~= "b4.portrait";
+              _selected_sizes ~= "b4.landscape";
+              break;
+            case "b4.portrait":
+              _selected_sizes ~= _size;
+              break;
+            case "b4.landscape":
+              _selected_sizes ~= _size;
+              break;
+            case "a5":
+              _selected_sizes ~= "a5.portrait";
+              _selected_sizes ~= "a5.landscape";
+              break;
+            case "a5.portrait":
+              _selected_sizes ~= _size;
+              break;
+            case "a5.landscape":
+              _selected_sizes ~= _size;
+              break;
+            case "letter":
+              _selected_sizes ~= "letter.portrait";
+              _selected_sizes ~= "letter.landscape";
+              break;
+            case "letter.portrait":
+              _selected_sizes ~= _size;
+              break;
+            case "letter.landscape":
+              _selected_sizes ~= _size;
+              break;
+            case "legal":
+              _selected_sizes ~= "legal.portrait";
+              _selected_sizes ~= "legal.landscape";
+              break;
+            case "legal.portrait":
+              _selected_sizes ~= _size;
+              break;
+            case "legal.landscape":
+              _selected_sizes ~= _size;
+              break;
+            default: break;
+          }
+        }
+        return _selected_sizes;
+      }
+      string _set_papersize;
+      if (_opt_action.latex_papersize.length > 0) {
+        _set_papersize
+          = _opt_action.latex_papersize;
+      } else {
+        _set_papersize
+          = (_cfg.default_papersize.empty)
+            ? "a4,letter.portrait"
+            : _cfg.default_papersize;
+        if ("papersize" in _yaml["default"]
+          && _yaml["default"]["papersize"].type.string
+          && _yaml["default"]["papersize"].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _set_papersize
+            = _yaml["default"]["papersize"].get!string;
+        }
+      }
+      _struct_composite.conf.set_papersize = selected_papersize(_set_papersize);
+      if (
+        "default" in _yaml
+        && _yaml["default"].type.sequence
+        && _yaml["default"].type.mapping
+        && _yaml["default"].tag.match(rgx_y.yaml_tag_is_map)
+      ) {
+        if ("text_wrap" in _yaml["default"]
+          && _yaml["default"]["text_wrap"].type.string
+          && _yaml["default"]["text_wrap"].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _struct_composite.conf.set_text_wrap = _yaml["default"]["text_wrap"].get!string;
+        }
+        if ("emphasis" in _yaml["default"]
+          && _yaml["default"]["emphasis"].type.string
+          && _yaml["default"]["emphasis"].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _struct_composite.conf.set_emphasis = _yaml["default"]["emphasis"].get!string;
+        }
+        if ("language" in _yaml["default"]
+          && _yaml["default"]["language"].type.string
+          && _yaml["default"]["language"].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _struct_composite.conf.set_language = _yaml["default"]["language"].get!string;
+        }
+        if ("digest" in _yaml["default"]
+          && _yaml["default"]["digest"].type.string
+          && _yaml["default"]["digest"].tag.match(rgx_y.yaml_tag_is_str)
+        ) {
+          _struct_composite.conf.set_digest = _yaml["default"]["digest"].get!string;
+        }
+      }
+      if ("search" in _yaml
+        && _yaml["search"].type.sequence
+      ) {
+        if (_yaml["search"].type.mapping
+          && _yaml["search"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("flag" in _yaml["search"]
+            && _yaml["search"]["flag"].type.string
+            && _yaml["search"]["flag"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.search_flag = _yaml["search"]["flag"].get!string;
+          }
+          if ("action" in _yaml["search"]
+            && _yaml["search"]["action"].type.string
+            && _yaml["search"]["action"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.search_action = _yaml["search"]["action"].get!string;
+          }
+          if ("db" in _yaml["search"]
+            && _yaml["search"]["db"].type.string
+            && _yaml["search"]["db"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.search_db = _yaml["search"]["db"].get!string;
+          }
+          if ("title" in _yaml["search"]
+            && _yaml["search"]["title"].type.string
+            && _yaml["search"]["title"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.conf.search_title = _yaml["search"]["title"].get!string;
+          }
+        }
+      }
+    } else {
+      /+ make ------------------------------------------------------------------- +/
+      if ("make" in _yaml
+        && _yaml["make"].type.sequence
+      ) {
+        if (_yaml["make"].type.mapping
+          && _yaml["make"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("doc_type" in _yaml["make"]
+            && _yaml["make"]["doc_type"].type.string
+            && _yaml["make"]["doc_type"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.doc_type = _yaml["make"]["doc_type"].get!string;
+          }
+          if ("breaks" in _yaml["make"]
+            && _yaml["make"]["breaks"].type.string
+            && _yaml["make"]["breaks"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.breaks = _yaml["make"]["breaks"].get!string;
+          }
+          if ("bold" in _yaml["make"]
+            && _yaml["make"]["bold"].type.string
+            && _yaml["make"]["bold"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.bold = _yaml["make"]["bold"].get!string;
+          }
+          if ("cover_image" in _yaml["make"]
+            && _yaml["make"]["cover_image"].type.string
+            && _yaml["make"]["cover_image"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.cover_image = _yaml["make"]["cover_image"].get!string;
+          }
+          if ("css" in _yaml["make"]
+            && _yaml["make"]["css"].type.string
+            && _yaml["make"]["css"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.css = _yaml["make"]["css"].get!string;
+          }
+          if ("emphasis" in _yaml["make"]
+            && _yaml["make"]["emphasis"].type.string
+            && _yaml["make"]["emphasis"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.emphasis = _yaml["make"]["emphasis"].get!string;
+          }
+          if ("footer" in _yaml["make"]
+            && _yaml["make"]["footer"].type.string
+            && _yaml["make"]["footer"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            char[][] __match_footer_array
+              = (cast(char[]) _yaml["make"]["footer"].get!string)
+                .split(rgx.make_heading_delimiter);
+            _struct_composite.make_str.footer = __match_footer_array.to!(string[]);
+          }
+          if ("headings" in _yaml["make"]
+            && _yaml["make"]["headings"].type.string
+            && _yaml["make"]["headings"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            char[][] __match_headings_array
+              = (cast(char[]) _yaml["make"]["headings"].get!string)
+                .split(rgx.make_heading_delimiter);
+            _struct_composite.make_str.headings = __match_headings_array.to!(string[]);
+          } else if ("headings" in _yaml["make"]
+            && _yaml["make"]["headings"].type.string
+            && _yaml["make"]["headings"].tag.match(rgx_y.yaml_tag_is_seq)
+          ) {
+            foreach(string identify_heading_level; _yaml["make"]["headings"]) {
+              _struct_composite.make_str.headings ~= identify_heading_level;
+            }
+          }
+          if ("home_button_image" in _yaml["make"]
+            && _yaml["make"]["home_button_image"].type.string
+            && _yaml["make"]["home_button_image"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            char[][] __match_home_button_image_array
+              = (cast(char[]) _yaml["make"]["home_button_image"].get!string)
+                .split(rgx.make_heading_delimiter);
+            _struct_composite.make_str.home_button_image = __match_home_button_image_array.to!(string[]);
+          }
+          if ("home_button_text" in _yaml["make"]
+            && _yaml["make"]["home_button_text"].type.string
+            && _yaml["make"]["home_button_text"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.home_button_text = _yaml["make"]["home_button_text"].get!string;
+          } else if ("home_button_text" in _yaml["make"]
+            && _yaml["make"]["home_button_text"].type.string
+            && _yaml["make"]["home_button_text"].tag.match(rgx_y.yaml_tag_is_seq)
+          ) {
+            _struct_composite.make_str.home_button_text = "";
+            foreach(string hbt; _yaml["make"]["home_button_text"]) {
+              _struct_composite.make_str.home_button_text ~= hbt ~ "; ";
+            }
+          }
+          if ("italics" in _yaml["make"]
+            && _yaml["make"]["italics"].type.string
+            && _yaml["make"]["italics"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.italics = _yaml["make"]["italics"].get!string;
+          }
+          if ("auto_num_top_at_level" in _yaml["make"]
+            && _yaml["make"]["auto_num_top_at_level"].type.string
+            && _yaml["make"]["auto_num_top_at_level"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.make_str.auto_num_top_at_level = _yaml["make"]["auto_num_top_at_level"].get!string;
+            switch (_yaml["make"]["auto_num_top_at_level"].get!string) {
+            case "A":
+              break;
+            case "B": _struct_composite.make_str.auto_num_top_lv = 1;
+              break;
+            case "C": _struct_composite.make_str.auto_num_top_lv = 2;
+              break;
+            case "D": _struct_composite.make_str.auto_num_top_lv = 3;
+              break;
+            case "1": _struct_composite.make_str.auto_num_top_lv = 4;
+              break;
+            case "2": _struct_composite.make_str.auto_num_top_lv = 5;
+              break;
+            case "3": _struct_composite.make_str.auto_num_top_lv = 6;
+              break;
+            case "4": _struct_composite.make_str.auto_num_top_lv = 7;
+              break;
+            default:
+              break;
+            }
+          }
+          if ("auto_num_depth" in _yaml["make"]
+            && _yaml["make"]["auto_num_depth"].type.string
+            && _yaml["make"]["auto_num_depth"].tag.match(rgx_y.yaml_tag_is_int)
+          ) { // not sure implemented for documents
+            _struct_composite.make_str.auto_num_depth = _yaml["make"]["auto_num_depth"].get!int;
+          } else if ("auto_num_depth" in _yaml["make"]
+            && _yaml["make"]["auto_num_depth"].type.string
+            && _yaml["make"]["auto_num_depth"].tag.match(rgx_y.yaml_tag_is_str)
+          ) { // not sure implemented for documents
+            _struct_composite.make_str.auto_num_depth = _yaml["make"]["auto_num_depth"].get!int;
+          }
+          if ("texpdf_font" in _yaml["make"]
+            && _yaml["make"]["texpdf_font"].type.string
+          ) {
+            _struct_composite.make_str.texpdf_font = _yaml["make"]["texpdf_font"].get!string;
+          }
+        }
+        _struct_composite.make.doc_type                 = _mk.doc_type(_struct_composite.make_str.doc_type);
+        _struct_composite.make.breaks                   = _mk.breaks(_struct_composite.make_str.breaks);
+        _struct_composite.make.bold                     = _mk.bold(_struct_composite.make_str.bold);
+        _struct_composite.make.cover_image              = _mk.cover_image(_struct_composite.make_str.cover_image);
+        _struct_composite.make.css                      = _mk.css(_struct_composite.make_str.css);
+        _struct_composite.make.emphasis                 = _mk.emphasis(_struct_composite.make_str.emphasis);
+        _struct_composite.make.footer                   = _mk.footer(_struct_composite.make_str.footer);
+        _struct_composite.make.headings                 = _mk.headings(_struct_composite.make_str.headings);
+        _struct_composite.make.home_button_image        = _mk.home_button_image(_struct_composite.make_str.home_button_image);
+        _struct_composite.make.home_button_text         = _mk.home_button_text(_struct_composite.make_str.home_button_text);
+        _struct_composite.make.italics                  = _mk.italics(_struct_composite.make_str.italics);
+        _struct_composite.make.auto_num_top_at_level    = _mk.auto_num_top_at_level(_struct_composite.make_str.auto_num_top_at_level);
+        _struct_composite.make.auto_num_top_lv          = _mk.auto_num_top_lv(_struct_composite.make_str.auto_num_top_lv);
+        _struct_composite.make.auto_num_depth           = _mk.auto_num_depth(_struct_composite.make_str.auto_num_depth);
+        _struct_composite.make.substitute               = _mk.substitute(_struct_composite.make_str.substitute);
+        _struct_composite.make.texpdf_font              = _mk.texpdf_font(_struct_composite.make_str.texpdf_font);
+      }
+      /+ meta ------------------------------------------------------------------- +/
+      if (_struct_composite.meta.creator_author.empty) {
+        if ("creator" in _yaml
+          && _yaml["creator"].type.sequence
+        ) {
+          if (_yaml["creator"].type.mapping
+            && _yaml["creator"].tag.match(rgx_y.yaml_tag_is_map)
+          ) {
+            if ("author" in _yaml["creator"]
+              && _yaml["creator"]["author"].type.string
+              && _yaml["creator"]["author"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.creator_author = _yaml["creator"]["author"].get!string;
+            }
+            if ("email" in _yaml["creator"]
+              && _yaml["creator"]["email"].type.string
+              && _yaml["creator"]["email"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.creator_author_email = _yaml["creator"]["email"].get!string;
+            }
+            if ("illustrator" in _yaml["creator"]
+              && _yaml["creator"]["illustrator"].type.string
+              && _yaml["creator"]["illustrator"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.creator_illustrator = _yaml["creator"]["illustrator"].get!string;
+            }
+            if ("translator" in _yaml["creator"]
+              && _yaml["creator"]["translator"].type.string
+              && _yaml["creator"]["translator"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.creator_translator = _yaml["creator"]["translator"].get!string;
+            }
+          } else if (_yaml["creator"].type.string
+            && _yaml["creator"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.creator_author = _yaml["creator"].get!string;
+          }
+        }
+        string[] author_arr;
+        string[][string] authors_hash_arr = [ "first" : [], "last" : [], "full" : [], "last_first" : [], "as_input" : [] ];
+        string[] authors_raw_arr
+          = _struct_composite.meta.creator_author.split(rgx.arr_delimiter);
+        auto _lastname = appender!(char[])();
+        foreach (author_raw; authors_raw_arr) {
+          if (auto m = author_raw.match(rgx.raw_author_munge)) {
+            author_arr                   ~= author_raw.replace(rgx.raw_author_munge, "$2 $1");
+            authors_hash_arr["first"]    ~= author_raw.replace(rgx.raw_author_munge, "$2");
+            authors_hash_arr["last"]     ~= author_raw.replace(rgx.raw_author_munge, "$1");
+            authors_hash_arr["full"]     ~= author_raw.replace(rgx.raw_author_munge, "$2 $1");
+            (m.captures[1]).map!toUpper.copy(_lastname);
+            authors_hash_arr["last_first"] ~= _lastname.data.to!string ~ ", " ~ m.captures[2];
+            _lastname = appender!(char[])();
+          } else {
+            author_arr                     ~= author_raw;
+            authors_hash_arr["last"]       ~= author_raw;
+            authors_hash_arr["full"]       ~= author_raw;
+            authors_hash_arr["last_first"] ~= author_raw;
+          }
+          authors_hash_arr["as_input"] ~= author_raw;
+        }
+        _struct_composite.meta.creator_author_arr = author_arr;
+        _struct_composite.meta.creator_author     = author_arr.join(", ").chomp.chomp;
+        _struct_composite.meta.creator_author_surname = (authors_hash_arr["last"].length > 0) ? authors_hash_arr["last"][0] : "";
+        string _author_name_last_first = authors_hash_arr["last_first"].join("; ").chomp.chomp;
+        _struct_composite.meta.creator_author_surname_fn = (_author_name_last_first.length > 0)
+        ? _author_name_last_first
+        : authors_hash_arr["as_input"].join("; ").chomp.chomp;
+      }
+      if (_struct_composite.meta.title_main.empty) {
+        if ("title" in _yaml
+          && _yaml["title"].type.sequence
+        ) {
+          if (_yaml["title"].type.mapping
+            && _yaml["title"].tag.match(rgx_y.yaml_tag_is_map)
+          ) {
+            if ("main" in _yaml["title"]
+              && _yaml["title"]["main"].type.string
+              && _yaml["title"]["main"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_main = _yaml["title"]["main"].get!string;
+            } else if ("title" in _yaml["title"]
+              && _yaml["title"]["title"].type.string
+              && _yaml["title"]["title"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_main = _yaml["title"]["title"].get!string;
+            }
+            if ("edition" in _yaml["title"]
+              && _yaml["title"]["edition"].type.string
+              && _yaml["title"]["edition"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_edition = _yaml["title"]["edition"].get!string;
+            }
+            if ("full" in _yaml["title"]
+              && _yaml["title"]["full"].type.string
+              && _yaml["title"]["full"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_full = _yaml["title"]["full"].get!string;
+            }
+            if ("language" in _yaml["title"]
+              && _yaml["title"]["language"].type.string
+              && _yaml["title"]["language"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_language = _yaml["title"]["language"].get!string;
+            }
+            if ("note" in _yaml["title"]
+              && _yaml["title"]["note"].type.string
+              && _yaml["title"]["note"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_note = _yaml["title"]["note"].get!string;
+            }
+            if ("subtitle" in _yaml["title"]
+              && _yaml["title"]["subtitle"].type.string
+              && _yaml["title"]["subtitle"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_subtitle = _yaml["title"]["subtitle"].get!string;
+            } else if ("sub" in _yaml["title"]
+              && _yaml["title"]["sub"].type.string
+              && _yaml["title"]["sub"].tag.match(rgx_y.yaml_tag_is_str)
+            ) {
+              _struct_composite.meta.title_subtitle = _yaml["title"]["sub"].get!string;
+            }
+          } else if (
+            _yaml["title"].type.string
+            && _yaml["title"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.title_main = _yaml["title"].get!string;
+          }
+        }
+        _struct_composite.meta.title_sub = _struct_composite.meta.title_subtitle;
+        if ((!(_struct_composite.meta.title_subtitle.empty))
+        && (_struct_composite.meta.title_sub.empty)) {
+          _struct_composite.meta.title_sub = _struct_composite.meta.title_subtitle;
+        }
+        _struct_composite.meta.title_full = (_struct_composite.meta.title_subtitle.empty)
+        ? _struct_composite.meta.title_main
+        : format(
+            "%s - %s",
+            _struct_composite.meta.title_main,
+            _struct_composite.meta.title_subtitle,
+          );
+      }
+      if ("classify" in _yaml
+        && _yaml["classify"].type.sequence
+      ) {
+        if (_yaml["classify"].type.mapping
+          && _yaml["classify"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("dewey" in _yaml["classify"]
+            && _yaml["classify"]["dewey"].type.string
+            && _yaml["classify"]["dewey"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.classify_dewey = _yaml["classify"]["dewey"].get!string;
+          }
+          if ("loc" in _yaml["classify"]
+            && _yaml["classify"]["loc"].type.string
+            && _yaml["classify"]["loc"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.classify_loc = _yaml["classify"]["loc"].get!string;
+          }
+          if ("keywords" in _yaml["classify"]
+            && _yaml["classify"]["keywords"].type.string
+            && _yaml["classify"]["keywords"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.classify_keywords = _yaml["classify"]["keywords"].get!string;
+          }
+          if ("topic_register" in _yaml["classify"]
+            && _yaml["classify"]["topic_register"].type.string
+            && _yaml["classify"]["topic_register"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.classify_topic_register = _yaml["classify"]["topic_register"].get!string;
+            if (_struct_composite.meta.classify_topic_register.length > 0) {
+              auto wrds = ctRegex!(`([\wa-zA-Z(). -]+)`); // ctRegex!(`([(]?\w+[a-zA-Z(). -]*)+`);
+              auto mkp_delim = ctRegex!(`:([^:]+?)(;|$)`);
+              string _topic_register = _struct_composite.meta.classify_topic_register;
+              _topic_register = _topic_register
+                .replaceAll(wrds, "\"$1\"")
+                .replaceAll(mkp_delim, ":$1$2");
+            }
+            string[] main_topics_ = _struct_composite.meta.classify_topic_register.strip.split(rgx.topic_register_main_terms_split);
+            string[] topics;
+            string   topics_tmp;
+            string[] multiple_sub_terms;
+            foreach (mt; main_topics_) {
+              topics_tmp = mt.replaceAll(rgx.topic_register_main_term_plus_rest_split,    mkup.sep);
+              if (auto m = topics_tmp.match(rgx.topic_register_multiple_sub_terms_split)) {
+                multiple_sub_terms = m.captures[1].split(rgx.topic_register_sub_terms_split);
+                foreach (subterm; multiple_sub_terms) {
+                  topics ~= m.captures.pre ~ mkup.sep ~ subterm;
+                }
+              } else {
+                topics ~= topics_tmp;
+              }
+            }
+            _struct_composite.meta.classify_topic_register_arr = topics;
+            string[] topics_expanded;
+            if (_struct_composite.meta.classify_topic_register_arr.length > 0) {
+              foreach (i, topic; _struct_composite.meta.classify_topic_register_arr) {
+                string[] subject_tree = topic.split(mkup.sep);
+                if (topic.length > 0) {
+                  topics_expanded ~= subject_tree.join(", ");
+                }
+              }
+            }
+            _struct_composite.meta.classify_topic_register_expanded_arr = topics_expanded;
+            // writeln("\n------\n", _struct_composite.meta.title_full);
+            // writeln(_struct_composite.meta.classify_topic_register);
+            // writeln(_struct_composite.meta.classify_topic_register_expanded_arr.sort.join("\n"));
+            // writeln(_struct_composite.meta.classify_topic_register_arr);
+          }
+        }
+      }
+      if ("date" in _yaml
+        && _yaml["date"].type.sequence
+      ) {
+        if (_yaml["date"].type.mapping
+          && _yaml["date"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("added_to_site" in _yaml["date"]
+            && _yaml["date"]["added_to_site"].type.string
+            && _yaml["date"]["added_to_site"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.date_added_to_site = _yaml["date"]["added_to_site"].get!string;
+          }
+          if ("available" in _yaml["date"]
+            && _yaml["date"]["available"].type.string
+            && _yaml["date"]["available"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.date_available = _yaml["date"]["available"].get!string;
+          }
+          if ("created" in _yaml["date"]
+            && _yaml["date"]["created"].type.string
+            && _yaml["date"]["created"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.date_created = _yaml["date"]["created"].get!string;
+          }
+          if ("issued" in _yaml["date"]
+            && _yaml["date"]["issued"].type.string
+            && _yaml["date"]["issued"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.date_issued = _yaml["date"]["issued"].get!string;
+          }
+          if ("modified" in _yaml["date"]
+            && _yaml["date"]["modified"].type.string
+            && _yaml["date"]["modified"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.date_modified = _yaml["date"]["modified"].get!string;
+          }
+          if ("published" in _yaml["date"]
+            && _yaml["date"]["published"].type.string
+            && _yaml["date"]["published"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.date_published = _yaml["date"]["published"].get!string;
+          }
+          if ("valid" in _yaml["date"]
+            && _yaml["date"]["valid"].type.string
+            && _yaml["date"]["valid"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.date_valid = _yaml["date"]["valid"].get!string;
+          }
+        }
+      }
+      _struct_composite.meta.language_document_char = _manifested.src.language; // move
+      if ("links" in _yaml) {
+        // if ("" in _yaml["links"]) {
+        //   _struct_composite.meta.links_ = _yaml["links"][""].str;
+        // }
+      }
+      if ("notes" in _yaml
+        && _yaml["notes"].type.sequence
+      ) {
+        if (_yaml["notes"].type.mapping
+          && _yaml["notes"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("abstract" in _yaml["notes"]
+            && _yaml["notes"]["abstract"].type.string
+            && _yaml["notes"]["abstract"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.notes_abstract = _yaml["notes"]["abstract"].get!string;
+          }
+          if ("description" in _yaml["notes"]
+            && _yaml["notes"]["description"].type.string
+            && _yaml["notes"]["description"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.notes_description = _yaml["notes"]["description"].get!string;
+          }
+          if ("summary" in _yaml["notes"]
+            && _yaml["notes"]["summary"].type.string
+            && _yaml["notes"]["summary"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.notes_summary = _yaml["notes"]["summary"].get!string;
+          }
+        }
+      }
+      if ("original" in _yaml
+        && _yaml["original"].type.sequence
+      ) {
+        if (_yaml["original"].type.mapping
+          && _yaml["original"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("language" in _yaml["original"]
+            && _yaml["original"]["language"].type.string
+            && _yaml["original"]["language"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.original_language = _yaml["original"]["language"].get!string;
+          }
+          if ("language_char" in _yaml["original"]
+            && _yaml["original"]["language_char"].type.string
+            && _yaml["original"]["language_char"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.original_language_char = _yaml["original"]["language_char"].get!string;
+          }
+          if ("source" in _yaml["original"]
+            && _yaml["original"]["source"].type.string
+            && _yaml["original"]["source"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.original_source = _yaml["original"]["source"].get!string;
+          }
+          if ("title" in _yaml["original"]
+            && _yaml["original"]["title"].type.string
+            && _yaml["original"]["title"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.original_title = _yaml["original"]["title"].get!string;
+          }
+        }
+      }
+      if ("publisher" in _yaml) {
+        // if ("" in _yaml["publisher"]) {
+        //   _struct_composite.meta.publisher = _yaml["publisher"][""].str;
+        // }
+      }
+      if ("rights" in _yaml
+        && _yaml["rights"].type.sequence
+      ) {
+        if (_yaml["rights"].type.mapping
+          && _yaml["rights"].tag.match(rgx_y.yaml_tag_is_map)
+        ) {
+          if ("copyright" in _yaml["rights"]
+            && _yaml["rights"]["copyright"].type.string
+            && _yaml["rights"]["copyright"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright = check_input_markup(_yaml["rights"]["copyright"].get!string);
+          }
+          if ("copyright_text" in _yaml["rights"]
+            && _yaml["rights"]["copyright_text"].type.string
+            && _yaml["rights"]["copyright_text"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright_text = _yaml["rights"]["copyright_text"].get!string;
+          }
+          if ("copyright_audio" in _yaml["rights"]
+            && _yaml["rights"]["copyright_audio"].type.string
+            && _yaml["rights"]["copyright_audio"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright_audio = _yaml["rights"]["copyright_audio"].get!string;
+          }
+          if ("copyright_cover" in _yaml["rights"]
+            && _yaml["rights"]["copyright_cover"].type.string
+            && _yaml["rights"]["copyright_cover"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright_cover = _yaml["rights"]["copyright_cover"].get!string;
+          }
+          if ("copyright_illustrations" in _yaml["rights"]
+            && _yaml["rights"]["copyright_illustrations"].type.string
+            && _yaml["rights"]["copyright_illustrations"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright_illustrations = _yaml["rights"]["copyright_illustrations"].get!string;
+          }
+          if ("copyright_photographs" in _yaml["rights"]
+            && _yaml["rights"]["copyright_photographs"].type.string
+            && _yaml["rights"]["copyright_photographs"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright_photographs = _yaml["rights"]["copyright_photographs"].get!string;
+          }
+          if ("copyright_translation" in _yaml["rights"]
+            && _yaml["rights"]["copyright_translation"].type.string
+            && _yaml["rights"]["copyright_translation"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright_translation = _yaml["rights"]["copyright_translation"].get!string;
+          }
+          if ("copyright_video" in _yaml["rights"]
+            && _yaml["rights"]["copyright_video"].type.string
+            && _yaml["rights"]["copyright_video"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_copyright_video = _yaml["rights"]["copyright_video"].get!string;
+          }
+          if ("license" in _yaml["rights"]
+            && _yaml["rights"]["license"].type.string
+            && _yaml["rights"]["license"].tag.match(rgx_y.yaml_tag_is_str)
+          ) {
+            _struct_composite.meta.rights_license = check_input_markup(_yaml["rights"]["license"].get!string);
+          }
+        }
+      }
+    }
+    return _struct_composite;
+  }
+}
+template configParseYAMLreturnSpineStruct() {
+  import dyaml;
+  import
+    sisudoc.meta.conf_make_meta_structs,
+    sisudoc.meta.conf_make_meta_json;
+  mixin contentYAMLtoSpineStruct;
+  @system auto configParseYAMLreturnSpineStruct(T,CCm,M,O,Cfg)(
+    T       _document_struct,
+    CCm     _make_and_meta_struct,
+    M       _manifested,
+    O       _opt_action,
+    Cfg     _cfg
+  ){
+    Node _yaml;
+    if (_document_struct.content.length > 0) {
+      try {
+        _yaml = Loader.fromString(_document_struct.content).load();
+      } catch (Throwable) {
+        import std.stdio;
+        writeln("ERROR failed to parse content as yaml: ", _document_struct.filename);
+        // writeln(_document_struct.content);
+      }
+      try {
+      _make_and_meta_struct
+        = contentYAMLtoSpineStruct!()(_make_and_meta_struct, _yaml, _manifested, _opt_action, _cfg, _document_struct.filename);
+      } catch (Throwable) {
+        import std.stdio;
+        writeln("ERROR failed to convert yaml to struct: ", _document_struct.filename);
+      }
+    }
+    return _make_and_meta_struct;
+  }
+}
+template docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct() {
+  import
+    std.exception,
+    std.regex,
+    std.stdio,
+    std.traits,
+    std.typecons,
+    std.utf,
+    std.conv : to;
+  import
+    dyaml;
+  import
+    sisudoc.meta.conf_make_meta_structs,
+    sisudoc.meta.conf_make_meta_json,
+    sisudoc.meta.rgx_yaml,
+    sisudoc.meta.rgx;
+  mixin spineRgxIn;
+  mixin contentJSONtoSpineStruct;
+  static auto rgx = RgxI();
+  mixin spineRgxYamlTags;
+  static auto rgx_y = RgxYaml();
+  @system auto docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct(CCm,Src,M,O,Cfg)(
+    Src     header_src,
+    CCm     _make_and_meta_struct,
+    M       _manifested,
+    O       _opt_action,
+    Cfg     _cfg,
+  ) {
+    Node _yaml;
+    try {
+      _yaml = Loader.fromString(header_src).load();
+      if (("title" in _yaml) && ("creator" in _yaml)) {} else { // need test for _yaml content (does not work)
+        writeln("ERROR failed to read document header, yaml header does not contain essential information related to title and author");
+      }
+      return contentYAMLtoSpineStruct!()(_make_and_meta_struct, _yaml, _manifested, _opt_action, _cfg, "header");
+    } catch (Throwable) {
+      writeln("ERROR failed to read document header, header not parsed as yaml: ", _manifested.src.filename);
+      return _make_and_meta_struct;
+    }
+  }
+}
diff --git a/src/sisudoc/meta/defaults.d b/src/sisudoc/meta/defaults.d
new file mode 100644
index 0000000..fe0cd1a
--- /dev/null
+++ b/src/sisudoc/meta/defaults.d
@@ -0,0 +1,297 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  default settings
++/
+module sisudoc.meta.defaults;
+@safe:
+template spineNode() {
+  static string[string] node_metadata_heading_str() {
+    string[string] _node = [
+        "is"                            : "",
+        "ocn"                           : "",
+        "marked_up_lev"                 : "",
+        "segment_anchor_tag_html"       : "",
+        "segment_anchor_tag_epub"       : "",
+        "attrib"                        : "",
+    ];
+    return _node;
+  }
+  static int[string] node_metadata_heading_int() {
+    int[string] _node = [
+        "ocn"                           : 0, // decide whether to use or keep?
+        "ptr_doc_object"                : 0,
+        "ptr_html_segnames"             : 0,
+        "ptr_heading"                   : 0,
+        "heading_lev_markup"            : 9,
+        "heading_lev_collapsed"         : 9,
+        "parent_ocn"                    : 0,
+        "parent_lev_markup"             : 9,
+    ];
+    return _node;
+  }
+  static string[string] node_metadata_para_str() {
+    string[string] _node = [
+        "is"                            : "",
+        "ocn"                           : "",
+        "attrib"                        : "",
+    ];
+    return _node;
+  }
+  static int[string] node_metadata_para_int() {
+    int[string] _node = [
+        "ocn"                           : 0,
+        "indent_base"                   : 0,
+        "indent_hang"                   : 0,
+        "bullet"                        : 0, // bool (0|1)
+    ];
+    return _node;
+  }
+}
+template spineCurateMetadata() {
+  auto spineCurateMetadata() {
+    struct _Curate {
+      struct Curate {
+        string   title                = "";
+        string[] author_arr           = [];
+        string   author               = "";
+        string   author_surname       = "";
+        string   author_surname_fn    = "";
+        string   language             = "";
+        string   language_original    = "";
+        string   uid                  = "";
+        string   date_published       = "";
+        string[] topic_register_arr   = [];
+        string   path_html_metadata   = "";
+        string   path_html_scroll     = "";
+        string   path_html_segtoc     = "";
+        string   path_epub            = "";
+        string   path_abs_html_segtoc = "";
+        string   path_abs_html_scroll = "";
+        string   path_abs_epub        = "";
+        string   url_html_seg         = "";
+        string   url_html_scroll      = "";
+        string   url_epub             = "";
+      }
+      Curate curate;
+      Curate[] curates;
+      Curate[][string][string][string][string] subject_trees;
+    }
+    return _Curate();
+  }
+}
+template spineBiblio() {
+  // required: deemed_author (author || editor); year; fulltitle;
+  struct BibJsnStr {
+    static auto biblio_entry_tags_jsonstr() {
+      string x =  `{
+        "is"                               : "",
+        "sortby_deemed_author_year_title"  : "",
+        "deemed_author"                    : "",
+        "author_raw"                       : "",
+        "author"                           : "",
+        "author_arr"                       : [ "" ],
+        "editor_raw"                       : "",
+        "editor"                           : "",
+        "editor_arr"                       : [ "" ],
+        "title"                            : "",
+        "subtitle"                         : "",
+        "fulltitle"                        : "",
+        "language"                         : "",
+        "trans"                            : "",
+        "src"                              : "",
+        "journal"                          : "",
+        "in"                               : "",
+        "volume"                           : "",
+        "edition"                          : "",
+        "year"                             : "",
+        "place"                            : "",
+        "publisher"                        : "",
+        "url"                              : "",
+        "pages"                            : "",
+        "note"                             : "",
+        "short_name"                       : "",
+        "id"                               : ""
+      }`; // is: book, article, magazine, newspaper, blog, other
+      return x;
+    }
+  }
+}
+template InternalMarkup() {
+  import std.array;
+  static struct InlineMarkup {
+    string en_a_o = "【";      string en_a_c = "】";
+    string en_b_o = "〖";      string en_b_c = "〗";
+    string quote_o = "“";      string quote_c = "”";
+    string ff_i = "⑆";         string ff_o = "┨";         string ff_c = "┣"; // fontface
+    string lnk_o = "┥";        string lnk_c = "┝";
+    string url_o = "┤";        string url_c = "├";
+    string emph = "*";
+    string bold = "!";
+    string italic = "/";
+    string underscore = "_";
+    string superscript = "^";
+    string subscript = ",";
+    string mono = "■";
+    string cite = "‖";
+    string mark_internal_site_lnk = "¤";
+    string nbsp                   = "░";
+    string br_line                = "┘";
+    string br_line_inline         = "┙";
+    string br_line_spaced         = "┚";
+    string br_obj                 = "break_obj";
+    string br_page_line           = "┼";
+    string br_page                = "┿";
+    string br_page_new            = "╂";
+    string tc_s                   = "┊";
+    string tc_o                   = "┏";
+    string tc_c                   = "┚";
+    string tc_p                   = "┆";
+    string img                    = "☼";
+    string sep                    = "␣"; // "~";"␣"; // "~";
+    string uid_sep                = ":";
+    string on_o  = "「";       string on_c  = "」";
+    string mk_bullet               = "● ";
+    static string indent_by_spaces_provided(int indent, string _indent_spaces ="░░") {
+      _indent_spaces = replicate(_indent_spaces, indent);
+      return _indent_spaces;
+    }
+    static string repeat_character_by_number_provided(C,N)(C _character ="-", N number=10) {
+      _character = replicate(_character, number);
+      return _character;
+    }
+  }
+}
+template spineLanguageCodes() {
+  /+ language codes +/
+  struct Lang {
+    static string[string][string] codes() {
+      auto _lang_codes = [
+        "am":    [ "c": "am",    "n": "Amharic",           "t": "Amharic",                   "xlp": "amharic"      ],
+        "bg":    [ "c": "bg",    "n": "Bulgarian",         "t": "Български (Bəlgarski)",     "xlp": "bulgarian"    ],
+        "bn":    [ "c": "bn",    "n": "Bengali",           "t": "Bengali",                   "xlp": "bengali"      ],
+        "br":    [ "c": "br",    "n": "Breton",            "t": "Breton",                    "xlp": "breton"       ],
+        "ca":    [ "c": "ca",    "n": "Catalan",           "t": "catalan",                   "xlp": "catalan"      ],
+        "cs":    [ "c": "cs",    "n": "Czech",             "t": "česky",                     "xlp": "czech"        ],
+        "cy":    [ "c": "cy",    "n": "Welsh",             "t": "Welsh",                     "xlp": "welsh"        ],
+        "da":    [ "c": "da",    "n": "Danish",            "t": "dansk",                     "xlp": "danish"       ],
+        "de":    [ "c": "de",    "n": "German",            "t": "Deutsch",                   "xlp": "german"       ],
+        "el":    [ "c": "el",    "n": "Greek",             "t": "Ελληνικά (Ellinika)",       "xlp": "greek"        ],
+        "en":    [ "c": "en",    "n": "English",           "t": "English",                   "xlp": "english"      ],
+        "eo":    [ "c": "eo",    "n": "Esperanto",         "t": "Esperanto",                 "xlp": "esperanto"    ],
+        "es":    [ "c": "es",    "n": "Spanish",           "t": "español",                   "xlp": "spanish"      ],
+        "et":    [ "c": "et",    "n": "Estonian",          "t": "Estonian",                  "xlp": "estonian"     ],
+        "eu":    [ "c": "eu",    "n": "Basque",            "t": "basque",                    "xlp": "basque"       ],
+        "fi":    [ "c": "fi",    "n": "Finnish",           "t": "suomi",                     "xlp": "finnish"      ],
+        "fr":    [ "c": "fr",    "n": "French",            "t": "français",                  "xlp": "french"       ],
+        "ga":    [ "c": "ga",    "n": "Irish",             "t": "Irish",                     "xlp": "irish"        ],
+        "gl":    [ "c": "gl",    "n": "Galician",          "t": "Galician",                  "xlp": "galician"     ],
+        "he":    [ "c": "he",    "n": "Hebrew",            "t": "Hebrew",                    "xlp": "hebrew"       ],
+        "hi":    [ "c": "hi",    "n": "Hindi",             "t": "Hindi",                     "xlp": "hindi"        ],
+        "hr":    [ "c": "hr",    "n": "Croatian",          "t": "Croatian",                  "xlp": "croatian"     ],
+        "hy":    [ "c": "hy",    "n": "Armenian",          "t": "Armenian",                  "xlp": "armenian"     ],
+        "ia":    [ "c": "ia",    "n": "Interlingua",       "t": "Interlingua",               "xlp": "interlingua"  ],
+        "is":    [ "c": "is",    "n": "Icelandic",         "t": "Icelandic",                 "xlp": "icelandic"    ],
+        "it":    [ "c": "it",    "n": "Italian",           "t": "Italiano",                  "xlp": "italian"      ],
+        "ja":    [ "c": "ja",    "n": "Japanese",          "t": "日本語 (Nihongo)",         "xlp": "japanese"      ],
+        "ko":    [ "c": "ko",    "n": "Korean",            "t": "Korean",                    "xlp": "korean"       ],
+        "la":    [ "c": "la",    "n": "Latin",             "t": "Latin",                     "xlp": "latin"        ],
+        "lo":    [ "c": "lo",    "n": "Lao",               "t": "Lao",                       "xlp": "lao"          ],
+        "lt":    [ "c": "lt",    "n": "Lithuanian",        "t": "Lithuanian",                "xlp": "lithuanian"   ],
+        "lv":    [ "c": "lv",    "n": "Latvian",           "t": "Latvian",                   "xlp": "latvian"      ],
+        "ml":    [ "c": "ml",    "n": "Malayalam",         "t": "Malayalam",                 "xlp": "malayalam"    ],
+        "mr":    [ "c": "mr",    "n": "Marathi",           "t": "Marathi",                   "xlp": "marathi"      ],
+        "nl":    [ "c": "nl",    "n": "Dutch",             "t": "Nederlands",                "xlp": "dutch"        ],
+        "no":    [ "c": "no",    "n": "Norwegian",         "t": "norsk",                     "xlp": "norsk"        ],
+        "nn":    [ "c": "nn",    "n": "Norwegian Nynorsk", "t": "nynorsk",                   "xlp": "nynorsk"      ],
+        "oc":    [ "c": "oc",    "n": "Occitan",           "t": "Occitan",                   "xlp": "occitan"      ],
+        "pl":    [ "c": "pl",    "n": "Polish",            "t": "polski",                    "xlp": "polish"       ],
+        "pt":    [ "c": "pt",    "n": "Portuguese",        "t": "Português",                 "xlp": "portuges"     ],
+        "pt_BR": [ "c": "pt_BR", "n": "Portuguese Brazil", "t": "Brazilian Português",       "xlp": "brazilian"    ],
+        "ro":    [ "c": "ro",    "n": "Romanian",          "t": "română",                    "xlp": "romanian"     ],
+        "ru":    [ "c": "ru",    "n": "Russian",           "t": "Русский (Russkij)",         "xlp": "russian"      ],
+        "sa":    [ "c": "sa",    "n": "Sanskrit",          "t": "Sanskrit",                  "xlp": "sanskrit"     ],
+        "se":    [ "c": "se",    "n": "Sami",              "t": "Samin",                     "xlp": "samin"        ],
+        "sk":    [ "c": "sk",    "n": "Slovak",            "t": "slovensky",                 "xlp": "slovak"       ],
+        "sl":    [ "c": "sl",    "n": "Slovenian",         "t": "Slovenian",                 "xlp": "slovenian"    ],
+        "sq":    [ "c": "sq",    "n": "Albanian",          "t": "Albanian",                  "xlp": "albanian"     ],
+        "sr":    [ "c": "sr",    "n": "Serbian",           "t": "Serbian",                   "xlp": "serbian"      ],
+        "sv":    [ "c": "sv",    "n": "Swedish",           "t": "svenska",                   "xlp": "swedish"      ],
+        "ta":    [ "c": "ta",    "n": "Tamil",             "t": "Tamil",                     "xlp": "tamil"        ],
+        "te":    [ "c": "te",    "n": "Telugu",            "t": "Telugu",                    "xlp": "telugu"       ],
+        "th":    [ "c": "th",    "n": "Thai",              "t": "Thai",                      "xlp": "thai"         ],
+        "tk":    [ "c": "tk",    "n": "Turkmen",           "t": "Turkmen",                   "xlp": "turkmen"      ],
+        "tr":    [ "c": "tr",    "n": "Turkish",           "t": "Türkçe",                    "xlp": "turkish"      ],
+        "uk":    [ "c": "uk",    "n": "Ukranian",          "t": "українська (ukrajins\"ka)", "xlp": "ukrainian"    ],
+        "ur":    [ "c": "ur",    "n": "Urdu",              "t": "Urdu",                      "xlp": "urdu"         ],
+        "us":    [ "c": "en",    "n": "English (American)","t": "English",                   "xlp": "english"      ],
+        "vi":    [ "c": "vi",    "n": "Vietnamese",        "t": "Vietnamese",                "xlp": "vietnamese"   ],
+        "zh":    [ "c": "zh",    "n": "Chinese",           "t": "中文",                     "xlp": "chinese"       ],
+        "en":    [ "c": "en",    "n": "English",           "t": "English",                   "xlp": "english"      ],
+        "xx":    [ "c": "xx",    "n": "Default",           "t": "English",                   "xlp": "english"      ],
+      ];
+      return _lang_codes;
+    }
+    static string[] code_arr_ptr() {
+      string[] _lang_codes = ["am", "bg", "bn", "br", "ca", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fi", "fr", "ga", "gl", "he", "hi", "hr", "hy", "ia", "is", "it", "ja", "ko", "la", "lo", "lt", "lv", "ml", "mr", "nl", "no", "nn", "oc", "pl", "pt", "pt_BR", "ro", "ru", "sa", "se", "sk", "sl", "sq", "sr", "sv", "ta", "te", "th", "tk", "tr", "uk", "ur", "us", "vi", "zh", "en", "xx",];
+      return _lang_codes;
+    }
+    static string[] code_arr() {
+      string[] _lang_codes = ["am", "bg", "bn", "br", "ca", "cs", "cy", "da", "de", "el", "en", "eo", "es", "et", "eu", "fi", "fr", "ga", "gl", "he", "hi", "hr", "hy", "ia", "is", "it", "ja", "ko", "la", "lo", "lt", "lv", "ml", "mr", "nl", "no", "nn", "oc", "pl", "pt", "pt_BR", "ro", "ru", "sa", "se", "sk", "sl", "sq", "sr", "sv", "ta", "te", "th", "tk", "tr", "uk", "ur", "vi", "zh"];
+      return _lang_codes;
+    }
+    static auto codes_() {
+      return "(" ~ join(code_arr,"|") ~ ")";
+    }
+    static auto codes_regex() {
+      return regex(codes_);
+    }
+  }
+}
diff --git a/src/sisudoc/meta/doc_debugs.d b/src/sisudoc/meta/doc_debugs.d
new file mode 100644
index 0000000..ae50256
--- /dev/null
+++ b/src/sisudoc/meta/doc_debugs.d
@@ -0,0 +1,252 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  output debugs
++/
+module sisudoc.meta.doc_debugs;
+template spineDebugs() {
+  import
+    sisudoc.meta.defaults,
+    sisudoc.meta.rgx_files;
+  import
+    std.algorithm,
+    std.array,
+    std.container,
+    std.exception,
+    std.json,
+    std.stdio,
+    std.file,
+    std.path,
+    std.range,
+    std.regex,
+    std.string,
+    std.typecons,
+    std.utf,
+    std.conv : to;
+  auto spineDebugs(S,T)(
+    const S  contents,
+          T  doc_matters,
+  ) {
+    mixin spineRgxFiles;
+    mixin InternalMarkup;
+    static auto rgx_files = RgxFiles();
+    auto markup = InlineMarkup();
+    string key;
+    debug(parent) {
+      writefln(
+        "%s:%s",
+        __FILE__,
+        __LINE__,
+      );
+      foreach (key; doc_matters.has.keys_seq.seg) {
+        foreach (obj; contents[key]) {
+          if (obj.metainfo.is_of_part != "empty") {
+            if (obj.metainfo.is_a == "heading") {
+              writefln(
+                "%s node: %s heading: %s %s",
+                obj.object_number,
+                obj.node,
+                obj.heading_lev_markup,
+                obj.text,
+              );
+            }
+          }
+        }
+      }
+    }
+    debug(checkdoc) {
+      if ((doc_matters.opt.action.debug_do)) {
+        debug(checkdoc) {
+          if (auto mfn=match(doc_matters.src.filename, rgx_files.src_fn)) {
+            if (doc_matters.opt.action.assertions) {
+              switch (mfn.captures[2]) {
+              // live manual:
+              case "live-manual.ssm":
+                assert(check["last_object_number"] ==
+                  "1019","last object_number should be: 1019 (check test, document is frequently updated)"); // ok
+                break;
+              // sisu_markup:
+              case "sisu_markup.sst":
+                assert(check["last_object_number"] ==
+                  "297","last object_number expected to be: 297 rather than " ~ check["last_object_number"]); // ok
+                // assert(check["last_object_number"] == "297","last object_number expected to be: 297 rather than " ~ check["last_object_number"]);
+                // notes for first divergance study sisu headings 247 250
+                // sisu has issue with code that contains heading 1~ which results in no object_number! ??
+                // sisu currently has incorrect last body object_number of 294!
+                // bug in sisu? attend
+                break;
+              // sisu-markup-samples:
+              case "accelerando.charles_stross.sst":
+                assert(check["last_object_number"] ==
+                  "2861","last object_number expected to be: 2861 rather than " ~ check["last_object_number"]); // ok
+                break;
+              case "alices_adventures_in_wonderland.lewis_carroll.sst":
+                assert(check["last_object_number"] ==
+                  "805","last object_number expected to be: 805 rather than " ~ check["last_object_number"]); // 808
+                break;
+              case "autonomy_markup0.sst":
+                assert(check["last_object_number"] ==
+                  "77","last object_number expected to be: 77 rather than " ~ check["last_object_number"]); // ok endnotes
+                // assert(check["last_object_number"] == "78","last object_number expected to be: 78 rather than " ~ check["last_object_number"]);
+                break;
+              case "content.cory_doctorow.sst":
+                assert(check["last_object_number"] ==
+                  "953","last object_number expected to be: 953 rather than " ~ check["last_object_number"]); // 1007 way off, check object_number off switches
+                // assert(check["last_object_number"] == "953","last object_number expected to be: 953 rather than " ~ check["last_object_number"]);
+                break;
+              case "democratizing_innovation.eric_von_hippel.sst":
+                // fixed ERROR! range violation, broken check! endnotes, bookindex, biblio
+                // error in bookindex ... (ch1; ch6; ch8 )
+                assert(check["last_object_number"] ==
+                  "905","last object_number expected to be: 905 rather than " ~ check["last_object_number"]); // 911
+                break;
+              case "down_and_out_in_the_magic_kingdom.cory_doctorow.sst":
+                assert(check["last_object_number"] ==
+                  "1417","last object_number expected to be: 1417 rather than " ~ check["last_object_number"]); // 1455 check object_number off switches
+                break;
+              case "for_the_win.cory_doctorow.sst":
+                assert(check["last_object_number"] ==
+                  "3510","last object_number expected to be: 3510 rather than " ~ check["last_object_number"]); // 3569 check object_number off switches
+                break;
+              case "free_as_in_freedom_2.richard_stallman_and_the_free_software_revolution.sam_williams.richard_stallman.sst":
+                assert(check["last_object_number"] ==
+                  "1082","last object_number expected to be: 1082 rather than " ~ check["last_object_number"]); // check 1079 too few
+                break;
+              case "free_culture.lawrence_lessig.sst":
+                assert(check["last_object_number"] ==
+                  "1330","last object_number expected to be: 1330 rather than " ~ check["last_object_number"]); // 1312
+                // fixed ERROR! range violation, broken check!
+                // error in bookindex ... sections piracy (ch1) & property (ch10 market concentration) fixed
+                break;
+              case "free_for_all.peter_wayner.sst": // endnotes, bookindex, biblio
+                assert(check["last_object_number"] ==
+                  "1559","last object_number expected to be: 1559 rather than " ~ check["last_object_number"]); // 1560, check object_number off switches, has endnotes so 2 too many
+                // assert(check["last_object_number"] == "1559","last object_number expected to be: 1559 rather than " ~ check["last_object_number"]);
+                break;
+              case "gpl2.fsf.sst":
+                assert(check["last_object_number"] ==
+                  "65","last object_number expected to be: 65 rather than " ~ check["last_object_number"]); // ok endnotes? check
+                // assert(check["last_object_number"] == "66","last object_number expected to be: 66 rather than " ~ check["last_object_number"]);
+                break;
+              case "gpl3.fsf.sst":
+                assert(check["last_object_number"] ==
+                  "123","last object_number expected to be: 123 rather than " ~ check["last_object_number"]); // ok
+                break;
+              case "gullivers_travels.jonathan_swift.sst":
+                assert(check["last_object_number"] ==
+                  "668","last object_number expected to be: 668 rather than " ~ check["last_object_number"]); // 674
+                break;
+              case "little_brother.cory_doctorow.sst":
+                assert(check["last_object_number"] ==
+                  "3130","last object_number expected to be: 3130 rather than " ~ check["last_object_number"]); // 3204, check object_number off switches
+                break;
+              case "the_cathedral_and_the_bazaar.eric_s_raymond.sst":
+                assert(check["last_object_number"] ==
+                  "258","last object_number expected to be: 258 rather than " ~ check["last_object_number"]); // ok
+                break;
+              case "the_public_domain.james_boyle.sst":
+                assert(check["last_object_number"] ==
+                  "970","last object_number expected to be: 970 rather than " ~ check["last_object_number"]); // 978
+                break;
+              case "the_wealth_of_networks.yochai_benkler.sst": // endnotes, bookindex
+                assert(check["last_object_number"] ==
+                  "829","last object_number expected to be: 829 rather than " ~ check["last_object_number"]); // ok
+                // assert(check["last_object_number"] == "832","last object_number expected to be: 832 rather than " ~ check["last_object_number"]);
+                // has endnotes and bookindex, issue with sisu.rb
+                break;
+              case "through_the_looking_glass.lewis_carroll.sst":
+                assert(check["last_object_number"] ==
+                  "949","last object_number expected to be: 949 rather than " ~ check["last_object_number"]); // 955
+                break;
+              case "two_bits.christopher_kelty.sst": // endnotes, bookindex, biblio
+                assert(check["last_object_number"] ==
+                  "1190","last object_number expected to be: 1190 rather than " ~ check["last_object_number"]); // 1191
+                // assert(check["last_object_number"] == "1193","last object_number expected to be: 1193 rather than " ~ check["last_object_number"]); // 1191 ok?
+                // has endnotes and bookindex, issue with sisu.rb
+                break;
+                // fixed ERROR! range violation!
+                // error in bookindex ... (ch3 the movement)
+              case "un_contracts_international_sale_of_goods_convention_1980.sst":
+                assert(check["last_object_number"] ==
+                  "377","last object_number expected to be: 377 rather than " ~ check["last_object_number"]); // ok
+                break;
+              case "viral_spiral.david_bollier.sst": // endnotes, bookindex
+                assert(check["last_object_number"] ==
+                  "1078","last object_number expected to be: 1078 rather than " ~ check["last_object_number"]); // 1100
+                // fixed ERROR! range violation!
+                // error in bookindex ... (ch7 ... building the cc machine, an extra semi colon)
+                break;
+              default:
+                writeln(doc_matters.src.filename);
+                break;
+              }
+            }
+          }
+        }
+        debug(checkdoc) {
+          void out_segnames(S,T)(
+            const S  contents,
+                  T  doc_matters,
+          ) {
+            foreach (key; doc_matters.has.keys_seq.seg) {
+              if (contents[key].length > 1) {
+                foreach (obj; contents[key]) {
+                  if (obj.heading_lev_markup == 4) {
+                    writeln(obj.ptr_html_segnames, ". (", doc_matters.has.segnames_lv4[obj.ptr_html_segnames], ") -> ",  obj.text);
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/src/sisudoc/meta/metadoc.d b/src/sisudoc/meta/metadoc.d
new file mode 100644
index 0000000..a1899da
--- /dev/null
+++ b/src/sisudoc/meta/metadoc.d
@@ -0,0 +1,296 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc;
+@safe:
+template spineAbstraction() {
+  import
+    std.datetime;
+  import
+    sisudoc.meta,
+    sisudoc.meta.metadoc_from_src,
+    sisudoc.meta.conf_make_meta_structs,
+    sisudoc.meta.conf_make_meta_json,
+    sisudoc.meta.defaults,
+    sisudoc.io_in.paths_source,
+    sisudoc.io_in.read_config_files,
+    sisudoc.io_in.read_source_files,
+    sisudoc.io_out.hub;
+  mixin spineBiblio;
+  mixin outputHub;
+  enum headBody { header, body_content, insert_file_list, image_list }
+  enum makeMeta { make, meta }
+  enum docAbst  { doc_abstract_obj, doc_has }
+  @system auto spineAbstraction(E,P,O,Cfg,M,S)(
+    E _env,
+    P program_info,
+    O _opt_action,
+    Cfg _cfg,
+    M _manifest,
+    S _make_and_meta_struct
+  ){
+    { /+ document config/make file +/
+      auto _config_document_struct = readConfigDoc!()(_manifest, _env);
+      import sisudoc.meta.conf_make_meta_yaml;
+      _make_and_meta_struct = _config_document_struct.configParseYAMLreturnSpineStruct!()(_make_and_meta_struct, _manifest, _opt_action, _cfg);
+    }
+    /+ ↓ read file (filename with path) +/
+    /+ ↓ file tuple of header and content +/
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("step1 commence → (get document header & body & insert file list & if needed image list) [", _manifest.src.filename, "]");
+    }
+    auto _header_body_insertfilelist_imagelist
+      = spineRawMarkupContent!()(_opt_action, _manifest.src.path_and_fn);
+    static assert(_header_body_insertfilelist_imagelist.length==4);
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("- step1 complete for [", _manifest.src.filename, "]");
+    }
+    debug(header_and_body) {
+      writeln(header);
+      writeln(_header_body_insertfilelist_imagelist.length);
+      writeln(_header_body_insertfilelist_imagelist.length[headBody.body_content][0]);
+    }
+    /+ ↓ split header into make and meta +/
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("step2 commence → (read document header (yaml) return struct) [", _manifest.src.filename, "]");
+    }
+    import sisudoc.meta.conf_make_meta_yaml;
+    _make_and_meta_struct =
+      docHeaderMakeAndMetaTupYamlExtractAndConvertToStruct!()(
+        _header_body_insertfilelist_imagelist[headBody.header],
+        _make_and_meta_struct,
+        _manifest,
+        _opt_action,
+        _cfg,
+      );
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("- step2 complete for [", _manifest.src.filename, "]");
+    }
+    /+ ↓ document abstraction: process document, return abstraction as tuple +/
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("step3 commence → (document abstraction (da); da keys; segnames; doc_matters) [", _manifest.src.filename, "]");
+    }
+    auto da = docAbstraction!()(
+      _header_body_insertfilelist_imagelist[headBody.body_content],
+      _make_and_meta_struct,
+      _opt_action,
+      _manifest,
+      true,
+    );
+    auto doc_abstraction = da.document_the;
+    auto _doc_has_struct = da.doc_has;
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("- step3 complete for [", _manifest.src.filename, "]");
+    }
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("step4 commence → (doc_matters) [", _manifest.src.filename, "]");
+    }
+    struct DocumentMatters {
+      auto generator_program() {
+        struct Prog_ {
+          string project_name() {
+            return "spine";
+          }
+          string name() {
+            return program_info.name;
+          }
+          string ver() {
+            return program_info.ver;
+          }
+          @trusted string name_and_version() {
+            return program_info.name_and_version;
+          }
+          @trusted string name_version_and_compiler() {
+            return program_info.name_version_and_compiler;
+          }
+          string url_home() {
+            return "https://sisudoc.org";
+          }
+          string url_git() {
+            return "https://git.sisudoc.org/projects/";
+          }
+          auto compiler() {
+            return program_info.compiler;
+          }
+          auto time_output_generated() {
+            return program_info.time_output_generated;
+          }
+        }
+        return Prog_();
+      }
+      auto generated_time() {
+        auto _st = Clock.currTime(UTC());
+        auto _time = _st.year.to!string
+          ~ "-" ~ _st.month.to!int.to!string // prefer as month number
+          ~ "-" ~ _st.day.to!string
+          ~ " [" ~ _st.isoWeek.to!string ~ "/" ~ _st.dayOfWeek.to!int.to!string ~ "]"
+          ~ " " ~ _st.hour.to!string
+          ~ ":" ~ _st.minute.to!string
+          ~ ":" ~ _st.second.to!string;
+        return _time;
+      }
+      auto conf_make_meta() {
+        return _make_and_meta_struct;
+      }
+      auto has() {
+        return _doc_has_struct;
+      }
+      auto env() {
+        struct Env_ {
+          auto pwd() {
+            return _manifest.env.pwd;
+          }
+          auto home() {
+            return _manifest.env.home;
+          }
+        }
+        return Env_();
+      }
+      auto opt() {
+        struct Opt_ {
+          auto action() {
+            /+ getopt options, commandline instructions, raw
+             - processing instructions --epub --html etc.
+             - command line config instructions --output
+            +/
+            return _opt_action;
+          }
+        }
+        return Opt_();
+      }
+      auto src() {
+        return _manifest.src;
+      }
+      auto src_path_info() {
+        return spinePathsSRC!()(_manifest.env.pwd, _manifest.src.file_with_absolute_path); // would like (to have and use) relative path
+      }
+      auto pod() {
+        return _manifest.pod;
+      }
+      auto sqlite() {
+        struct SQLite_ {
+          string filename() {
+            string _fn = "";
+            string _pth = "";
+            if (_opt_action.sqliteDB_filename.length > 0) {
+              _fn = _opt_action.sqliteDB_filename;
+            } else if (_make_and_meta_struct.conf.w_srv_db_sqlite_filename.length > 0) {
+              _fn = _make_and_meta_struct.conf.w_srv_db_sqlite_filename;
+            }
+            return _fn;
+          }
+          string path() {
+            string _pth = "";
+            if (_opt_action.sqliteDB_path.length > 0) {
+              _pth = _opt_action.sqliteDB_path;
+            } else if (_make_and_meta_struct.conf.w_srv_db_sqlite_path.length > 0) {
+              _pth = _make_and_meta_struct.conf.w_srv_db_sqlite_path;
+            }
+            return _pth;
+          }
+          string cgi_filename() {
+            string _fn = "";
+            if (_opt_action.cgi_sqlite_search_filename.length > 0) {
+              _fn = _opt_action.cgi_sqlite_search_filename;
+            } else if (_make_and_meta_struct.conf.w_srv_cgi_search_script.length > 0) {
+              _fn = _make_and_meta_struct.conf.w_srv_cgi_search_script;
+            }
+            return _fn;
+          }
+          string cgi_filename_d() {
+            string _fn = "";
+            if (_opt_action.cgi_sqlite_search_filename_d.length > 0) {
+              _fn = _opt_action.cgi_sqlite_search_filename_d;
+            } else if (_make_and_meta_struct.conf.w_srv_cgi_search_script_raw_fn_d.length > 0) {
+              _fn = _make_and_meta_struct.conf.w_srv_cgi_search_script_raw_fn_d;
+            }
+            return _fn;
+          }
+        }
+        return SQLite_();
+      }
+      auto output_path() {
+        return _make_and_meta_struct.conf.output_path;
+      }
+      auto srcs() {
+        struct SRC_ {
+          auto file_insert_list() {
+            return _header_body_insertfilelist_imagelist[headBody.insert_file_list];
+          }
+          auto image_list() {
+            return _doc_has_struct.imagelist;
+          }
+        }
+        return SRC_();
+      }
+    }
+    auto doc_matters = DocumentMatters();
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("- step4 complete for [", _manifest.src.filename, "]");
+    }
+    auto t = tuple(doc_abstraction, doc_matters);
+    return t;
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_curate.d b/src/sisudoc/meta/metadoc_curate.d
new file mode 100644
index 0000000..3b5654b
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_curate.d
@@ -0,0 +1,92 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc_curate;
+@safe:
+template spineMetaDocCurate() {
+  auto spineMetaDocCurate(T,H)(
+    T  doc_matters,
+    H  hvst,
+  ) {
+    import
+      sisudoc.meta.defaults,
+      sisudoc.meta.rgx;
+    import
+      std.array,
+      std.exception,
+      std.regex,
+      std.stdio,
+      std.string,
+      std.typecons,
+      std.uni,
+      std.utf,
+      std.conv : to;
+    mixin InternalMarkup;
+    static auto mkup = InlineMarkup();
+    import sisudoc.io_out.paths_output;
+    auto pth_html_abs                  = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
+    auto pth_html_rel                  = spineDocRootTreeHTML!()(doc_matters.src.language);
+    hvst.curate.title                 = doc_matters.conf_make_meta.meta.title_full;
+    hvst.curate.author                = doc_matters.conf_make_meta.meta.creator_author;
+    hvst.curate.author_surname        = doc_matters.conf_make_meta.meta.creator_author_surname;
+    hvst.curate.author_surname_fn     = doc_matters.conf_make_meta.meta.creator_author_surname_fn;
+    hvst.curate.author_arr            = doc_matters.conf_make_meta.meta.creator_author_arr;
+    hvst.curate.language_original     = doc_matters.conf_make_meta.meta.original_language;
+    hvst.curate.language              = doc_matters.src.language;
+    hvst.curate.uid                   = doc_matters.src.doc_uid;
+    hvst.curate.date_published        = doc_matters.conf_make_meta.meta.date_published;
+    hvst.curate.topic_register_arr    = doc_matters.conf_make_meta.meta.classify_topic_register_arr;
+    hvst.curate.path_html_metadata    = pth_html_rel.fn_metadata(doc_matters.src.filename);
+    hvst.curate.path_html_scroll      = pth_html_rel.fn_scroll(doc_matters.src.filename);
+    hvst.curate.path_html_segtoc      = pth_html_rel.fn_seg(doc_matters.src.filename, "toc");
+    hvst.curate.path_abs_html_scroll  = pth_html_abs.fn_scroll(doc_matters.src.filename);
+    hvst.curate.path_abs_html_segtoc  = pth_html_abs.fn_seg(doc_matters.src.filename, "toc");
+    return hvst.curate;
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_curate_authors.d b/src/sisudoc/meta/metadoc_curate_authors.d
new file mode 100644
index 0000000..cb2b1db
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_curate_authors.d
@@ -0,0 +1,530 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc_curate_authors;
+@safe:
+  import
+    std.algorithm,
+    std.array,
+    std.exception,
+    std.regex,
+    std.stdio,
+    std.string,
+    std.conv : to;
+  import
+    sisudoc.meta.defaults,
+    sisudoc.meta.rgx;
+  mixin spineCurateMetadata;
+  mixin InternalMarkup;
+template spineMetaDocCuratesAuthors() {
+  static auto mkup = InlineMarkup();
+  void spineMetaDocCuratesAuthors(H,M,O)(
+    H  curates,
+    M  _make_and_meta_struct,
+    O  _opt_action,
+  ) {
+      string inline_search_form(M)(
+        M  _make_and_meta_truct,
+      ) {
+        string o;
+        string _form;
+        if (_opt_action.html_link_search) {
+          o = format(q"┃
+      <div class="flex-menu-option">
+      <!-- SiSU Spine Search -->
+      <form action="%s" target="_top" method="POST" accept-charset="UTF-8" id="search">
+      <font size="2">
+      <input type="text" name="sf" size="24" maxlength="255">%s
+      <input type="hidden" name="sml" value="1000">
+      <input type="hidden" name="ec" value="on">
+      <input type="hidden" name="url" value="on">
+      <button type="submit" form="search">㏈ ፨</button>
+      </font></form>
+      <!-- SiSU Spine Search -->
+      </div>┃",
+          _make_and_meta_struct.conf.w_srv_cgi_action,
+          (_make_and_meta_struct.conf.w_srv_db_sqlite_filename.empty)
+            ? ""
+            : "\n    <input type=\"hidden\" name=\"db\" value=\""
+              ~ _make_and_meta_struct.conf.w_srv_db_sqlite_filename
+              ~ "\">",
+          );
+        } else {
+          o = "";
+        }
+        return o;
+      }
+string theme_dark_0 = format(q"┃
+  body {
+    color                    : #CCCCCC;
+    background               : #000000;
+    background-color         : #000000;
+  }
+  a:link {
+    color                    : #FFFFFF;
+    text-decoration          : none;
+  }
+  a:visited {
+    color                    : #999999;
+    text-decoration          : none;
+  }
+  a:hover {
+    color                    : #000000;
+    background-color         : #555555;
+  }
+  a:hover img {
+    background-color         : #000000;
+  }
+  a:active {
+    color                    : #888888;
+    text-decoration          : underline;
+  }
+  a.lev0:hover {
+    color                    : #FFFFFF;
+    background-color         : #000000;
+  }
+  a.lev1:hover {
+    color                    : #FFFFFF;
+    background               : #333333;
+  }
+  a.lev2:hover {
+    color                    : #FFFFFF;
+    background               : #555555;
+  }
+  a.lev3:hover {
+    color                    : #FFFFFF;
+    background               : #777777;
+  }
+  a.lnkicon:link {
+    text-decoration          : none;
+  }
+  a.lnkicon:visited {
+    text-decoration          : none;
+  }
+  a.lnkicon:hover {
+    font-size                : 160%%;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  input, select, textarea {
+    font-size                : 150%%;
+  }
+  input {
+    color                    : #FFFFFF;
+    background-color         : #777777;
+  }
+┃");
+string theme_light_0 = format(q"┃
+  body {
+    color                    : #000000;
+    background               : #FFFFFF;
+    background-color         : #FFFFFF;
+  }
+  a:link {
+    color                    : #003399;
+    text-decoration          : none;
+  }
+  a:visited {
+    color                    : #003399;
+    text-decoration          : none;
+  }
+  a:hover {
+    color                    : #000000;
+    background-color         : #f9f9aa;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  a:active {
+    color                    : #003399;
+    text-decoration          : underline;
+  }
+  a.lev0:hover {
+    color                    : #000000;
+    background-color         : #FFFFFF;
+  }
+  a.lev1:hover {
+    color                    : #FFFFFF;
+    background               : #444444;
+  }
+  a.lev2:hover {
+    background               : #888888;
+  }
+  a.lev3:hover {
+    background               : #BBBBBB;
+  }
+  a.lnkicon:link {
+    text-decoration          : none;
+  }
+  a.lnkicon:visited {
+    text-decoration          : none;
+  }
+  a.lnkicon:hover {
+    font-size                : 160%%;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  input, select, textarea {
+    font-size                : 150%%;
+  }
+  input {
+    color                    : #000000;
+    background-color         : #FFFFFF;
+  }
+┃");
+string theme_dark_1 = format(q"┃
+  h1 {
+    color                    : #FFFFFF;
+    background               : #000000;
+  }
+  p.letter {
+    color                    : #FFFFFF;
+    background               : #333333;
+  }
+  p.lev0 {
+    color                    : #FFFFFF;
+    background               : #000000;
+  }
+  p.lev1 {
+    color                    : #FFFFFF;
+    background               : #333333;
+  }
+  p.lev2 {
+    background               : #555555;
+  }
+  p.lev3 {
+    background               : #777777;
+  }
+  p.lev4 {
+    background               : #AAAAAA;
+  }
+  p.lev5 {
+  }
+┃");
+string theme_light_1 = format(q"┃
+  h1 {
+    color                    : #FFFFFF;
+    background               : #1A3A7A;
+  }
+  p.letter {
+    color                    : #FFFFFF;
+    background               : #1A3A7A;
+  }
+  p.lev0 {
+    color                    : #FFFFFF;
+    background               : #000000;
+  }
+  p.lev1 {
+    color                    : #FFFFFF;
+    background               : #444444;
+  }
+  p.lev2 {
+    background               : #888888;
+  }
+  p.lev3 {
+    background               : #BBBBBB;
+  }
+  p.lev4 {
+    background               : #EEEEEE;
+  }
+  p.lev5 {
+  }
+┃");
+      string[] authors = [];
+      authors ~= format(q"┃
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>⌘ Curated metadata - &#x1F58B; Authors</title>
+<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+<meta name="dc.title" content= "metadata curate, Authors & Topics - information Structuring Universe, Structured information Serialised Units" />
+<meta name="dc.subject" content= "document structuring, ebook, publishing, PDF, LaTeX, XML, ODF, SQL, postgresql, sqlite, electronic book, electronic publishing, electronic document, electronic citation, data structure, citation systems, granular search, digital library" />
+<meta name="generator" content="spine" />
+<link rel="generator" href="https://sisudoc.org" />
+<link href="./css/curate.css" rel="stylesheet">
+<style TYPE="text/css">
+/* spine curate css default stylesheet */%s
+  .norm, .bold {
+    line-height              : 150%%;
+    margin-left              : 1em;
+    margin-right             : 2em;
+    margin-top               : 10px;
+    margin-bottom            : 0px;
+    text-indent              : 0mm;
+  }
+  p, h0, h1, h2, h3, h4, h5, h6, h7 {
+    display                  : block;
+    font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+    font-size                : 100%%;
+    font-weight              : normal;
+    line-height              : 150%%;
+    /* text-align            : justify; */
+    margin-left              : 1em;
+    text-indent              : 0mm;
+    margin-top               : 2px;
+    margin-bottom            : 2px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  h0, h1, h2, h3, h4, h5, h6, h7 { text-shadow: .2em .2em .3em #999999; }
+  h1 {
+    font-size                : 120%%;
+    font-weight              : bold;
+    color                    : #FFFFFF;
+    background               : #000088;
+    margin-left              : 0em;
+  }
+  p.work {
+    font-size                : 80%%;
+    margin-left              : 5em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.author {
+    font-size                : 100%%;
+    margin-left              : 2em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.publication {
+    font-size                : 90%%;
+    margin-left              : 4em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.letter {
+    font-weight              : bold;
+    font-size                : 80%%;
+    margin-left              : 1em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.icons, .icons_center {
+    font-size                : 100%%;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+  }
+  p.icons {
+    text-align               : left;
+  }
+  p.lev0 {
+    font-size                : 120%%;
+    margin-left              : 1em;
+  }
+  p.lev1 {
+    font-size                : 115%%;
+    margin-left              : 2em;
+  }
+  p.lev2 {
+    font-size                : 110%%;
+    margin-left              : 3em;
+  }
+  p.lev3 {
+    font-size                : 105%%;
+    margin-left              : 4em;
+  }
+  p.lev4 {
+    font-size                : 100%%;
+    margin-left              : 5em;
+  }
+  p.lev5 {
+    font-size                : 95%%;
+    margin-left              : 6em;
+  }%s
+  /* flex */
+  .flex-menu-bar {
+    display                  : -webkit-flex;
+    display                  : flex;
+    -webkit-flex-wrap        : wrap;
+    -webkit-align-items      : center;
+    align-items              : center;
+    width                    : 100%%;
+    margin-left              : 0%%;
+    margin-right             : 2%%;
+    background-color         : inherited;
+  }
+  .flex-menu-option {
+    background-color         : inherited;
+    margin-right             : 4px;
+  }
+  .flex-list {
+    display                  : -webkit-flex;
+    display                  : flex;
+    -webkit-align-items      : center;
+    display                  : block;
+    align-items              : center;
+    width                    : 100%%;
+    background-color         : inherited;
+  }
+  .flex-list-item {
+    background-color         : inherited;
+    margin                   : 4px;
+  }
+</style>
+<link rel="shortcut icon" href="../_sisu/image/rb7.ico" />
+</head>
+<body lang="en" xml:lang="en">
+<a name="top" id="top"></a>
+<a name="up" id="up"></a>
+<a name="start" id="start"></a>
+<h1>⌘ Curated metadata - &#x1F58B; Authors (output organised by language &amp; filetype)</h1>
+<div class="flex-menu-bar">
+<div class="flex-menu-option">
+<p class="icons">[<a href="../../index.html" class="lnkicon">&nbsp;⟰&nbsp;HOME&nbsp;</a>&nbsp;|&nbsp;<a href="../index.html" class="lnkicon">&nbsp;≅&nbsp;Collection&nbsp;</a>]
+ [<a href="topics.html" class="lnkicon">&nbsp;⌘&nbsp;Curated&nbsp;metadata&nbsp;-&nbsp;⌘&nbsp;Topics&nbsp;</a>] </p>
+</div>
+%s
+</div>
+<p></p>
+<hr />
+<p><a href="#A" class="lnkicon">A</a>,&nbsp;<a href="#B" class="lnkicon">B</a>,&nbsp;<a href="#C" class="lnkicon">C</a>,&nbsp;<a href="#D" class="lnkicon">D</a>,&nbsp;<a href="#E" class="lnkicon">E</a>,&nbsp;<a href="#F" class="lnkicon">F</a>,&nbsp;<a href="#G" class="lnkicon">G</a>,&nbsp;<a href="#H" class="lnkicon">H</a>,&nbsp;<a href="#I" class="lnkicon">I</a>,&nbsp;<a href="#J" class="lnkicon">J</a>,&nbsp;<a href="#K" class="lnkicon">K</a>,&nbsp;<a href="#L" class="lnkicon">L</a>,&nbsp;<a href="#M" class="lnkicon">M</a>,&nbsp;<a href="#N" class="lnkicon">N</a>,&nbsp;<a href="#O" class="lnkicon">O</a>,&nbsp;<a href="#P" class="lnkicon">P</a>,&nbsp;<a href="#Q" class="lnkicon">Q</a>,&nbsp;<a href="#R" class="lnkicon">R</a>,&nbsp;<a href="#S" class="lnkicon">S</a>,&nbsp;<a href="#T" class="lnkicon">T</a>,&nbsp;<a href="#U" class="lnkicon">U</a>,&nbsp;<a href="#V" class="lnkicon">V</a>,&nbsp;<a href="#W" class="lnkicon">W</a>,&nbsp;<a href="#X" class="lnkicon">X</a>,&nbsp;<a href="#Y" class="lnkicon">Y</a>,&nbsp;<a href="#Z" class="lnkicon">Z</a>,&nbsp;
+┃",
+  _opt_action.css_theme_default ? theme_light_0 : theme_dark_0,
+  _opt_action.css_theme_default ? theme_light_1 : theme_dark_1,
+  inline_search_form(_make_and_meta_struct),
+) ~ "\n";
+      string[string] _au;
+      string[] _auth_date_title;
+      string[] _author_date_title;
+      string _prev_auth = "";
+      char _prev_k = "_".to!char;
+      foreach(doc_curate;
+        curates
+        .multiSort!(
+          "toUpper(a.author_surname_fn) < toUpper(b.author_surname_fn)",
+          "a.date_published < b.date_published",
+          "a.title < b.title",
+          SwapStrategy.unstable
+        )
+      ) {
+        if (doc_curate.author_surname_fn != _prev_auth) {
+          _au[doc_curate.author_surname_fn]
+          = format(q"┃<p class="author"><a name="%s" class="lev0">%s</a></p> <p class="publication">%s "<a href="%s">%s</a>" [<a href="%s">&nbsp;%s&nbsp;</a>]</p>┃",
+            doc_curate.author_surname.translate([' ' : "_"]),
+            doc_curate.author_surname_fn,
+            (doc_curate.date_published.length > 0)
+              ? doc_curate.date_published : "",
+            doc_curate.path_html_segtoc,
+            doc_curate.title,
+            doc_curate.path_html_metadata,
+            doc_curate.language,
+          );
+          _prev_auth = doc_curate.author_surname_fn;
+        } else {
+          _au[doc_curate.author_surname_fn]
+          ~= format(q"┃<p class="publication">%s "<a href="%s">%s</a>" [<a href="%s">&nbsp;%s&nbsp;</a>]</p>┃",
+            (doc_curate.date_published.length > 0)
+              ? doc_curate.date_published : "",
+            doc_curate.path_html_segtoc,
+            doc_curate.title,
+            doc_curate.path_html_metadata,
+            doc_curate.language,
+          );
+        }
+        _author_date_title ~= format(q"┃%s %s "%s" [<a href="%s">&nbsp;%s&nbsp;</a>]%s┃",
+          doc_curate.author_surname_fn,
+          (doc_curate.date_published.length > 0)
+            ? "(" ~ doc_curate.date_published ~ ")" : "",
+          doc_curate.title,
+          doc_curate.path_html_metadata,
+          doc_curate.language,
+          (_opt_action.show_curate_authors) ? "\n  " ~ doc_curate.path_abs_html_scroll : "",
+        );
+      }
+      foreach (k; _au.keys.sort) {
+        if (k.toUpper.to!(char[])[0] != _prev_k) {
+          authors ~= format(q"┃<p class="letter"><a name="%s">%s</a></p><p class="book_index_lev1"><a name="a"></a></p>┃",
+            k.toUpper.to!(char[])[0],
+            k.toUpper.to!(char[])[0],
+          );
+          _prev_k = k.toUpper.to!(char[])[0];
+        }
+        authors ~= _au[k];
+      }
+      authors
+      ~= format(q"┃
+<hr />
+<a name="bottom" id="bottom"></a>
+<a name="down" id="down"></a>
+<a name="end" id="end"></a>
+<a name="finish" id="finish"></a>
+<a name="stop" id="stop"></a>
+<a name="credits"></a>
+</body>
+</html>
+┃") ~ "\n";
+    import sisudoc.io_out.paths_output;
+    auto out_pth = spinePathsHTML!()(_make_and_meta_struct.conf.output_path, "");
+    try {
+      auto f = File(out_pth.curate("authors.html"), "w");
+      foreach (o; authors) {
+        f.writeln(o);
+      }
+    } catch (ErrnoException ex) {
+      // Handle error
+    }
+    if (_opt_action.show_curate_authors) {
+      foreach(_adt; _author_date_title.sort) {
+        writeln(_adt);
+      }
+    }
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_curate_topics.d b/src/sisudoc/meta/metadoc_curate_topics.d
new file mode 100644
index 0000000..a30be73
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_curate_topics.d
@@ -0,0 +1,693 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc_curate_topics;
+@safe:
+  import
+    std.algorithm,
+    std.array,
+    std.exception,
+    std.regex,
+    std.stdio,
+    std.string,
+    std.conv : to;
+  import
+    sisudoc.meta.defaults,
+    sisudoc.meta.rgx;
+  mixin spineCurateMetadata;
+  mixin InternalMarkup;
+template spineMetaDocCuratesTopics() {
+  static auto mkup = InlineMarkup();
+  void spineMetaDocCuratesTopics(H,M,O)(
+    H  hvst,
+    M  _make_and_meta_struct,
+    O  _opt_action,
+  ) {
+      string inline_search_form(M)(
+        M  _make_and_meta_truct,
+      ) {
+        string o;
+        string _form;
+        if (_opt_action.html_link_search) {
+          o = format(q"┃
+      <div class="flex-menu-option">
+      <!-- SiSU Spine Search -->
+      <form action="%s" target="_top" method="POST" accept-charset="UTF-8" id="search">
+      <font size="2">
+      <input type="text" name="sf" size="24" maxlength="255">%s
+      <input type="hidden" name="sml" value="1000">
+      <input type="hidden" name="ec" value="on">
+      <input type="hidden" name="url" value="on">
+      <button type="submit" form="search">㏈ ፨</button>
+      </font></form>
+      <!-- SiSU Spine Search -->
+      </div>┃",
+          _make_and_meta_struct.conf.w_srv_cgi_action,
+          (_make_and_meta_struct.conf.w_srv_db_sqlite_filename.empty)
+            ? ""
+            : "\n    <input type=\"hidden\" name=\"db\" value=\""
+              ~ _make_and_meta_struct.conf.w_srv_db_sqlite_filename
+              ~ "\">",
+          );
+        } else {
+          o = "";
+        }
+        return o;
+      }
+      auto min_repeat_number = 42;
+      string[] _document_topic_register;
+      string[] _topic_register;
+      string[] _sub_topic_register;
+      string[] topics = [];
+      string _auth = "";
+      foreach(k, doc_curate; hvst.curates) {
+        _topic_register = [];
+        foreach(topic; doc_curate.topic_register_arr.sort) {
+          _sub_topic_register = [];
+          string _spaces;
+          string[] subject_tree = topic.split(mkup.sep);
+          switch (subject_tree.length) {
+          case 1:
+            hvst.subject_trees[subject_tree[0]]["_a"]["_a"]["_a"] ~= doc_curate;
+            break;
+          case 2:
+            hvst.subject_trees[subject_tree[0]][subject_tree[1]]["_a"]["_a"] ~= doc_curate;
+            break;
+          case 3:
+            hvst.subject_trees[subject_tree[0]][subject_tree[1]][subject_tree[2]]["_a"] ~= doc_curate;
+            break;
+          case 4:
+            hvst.subject_trees[subject_tree[0]][subject_tree[1]][subject_tree[2]][subject_tree[3]] ~= doc_curate;
+            break;
+          default:
+            break;
+          }
+          _topic_register ~= _sub_topic_register.join("\n");
+        }
+        auto char_repeat_number = (doc_curate.title.length
+          + doc_curate.author.length + 16);
+        char_repeat_number = (char_repeat_number > min_repeat_number)
+        ? char_repeat_number
+        : min_repeat_number;
+        _document_topic_register ~= format(
+          "\"%s\", %s%s\n%s",
+          doc_curate.title,
+          doc_curate.author,
+          (doc_curate.date_published.length > 0) ? " (" ~ doc_curate.date_published ~ ")" : "",
+          _topic_register.sort!("toUpper(a) < toUpper(b)", SwapStrategy.unstable).release.join("\n"),
+        );
+      }
+string theme_dark_0 = format(q"┃
+  body {
+    color                    : #CCCCCC;
+    background               : #000000;
+    background-color         : #000000;
+  }
+  a:link {
+    color                    : #FFFFFF;
+    text-decoration          : none;
+  }
+  a:visited {
+    color                    : #999999;
+    text-decoration          : none;
+  }
+  a:hover {
+    color                    : #000000;
+    background-color         : #555555;
+  }
+  a:hover img {
+    background-color         : #000000;
+  }
+  a:active {
+    color                    : #888888;
+    text-decoration          : underline;
+  }
+  a.lev0:hover {
+    color                    : #FFFFFF;
+    background-color         : #000000;
+  }
+  a.lev1:hover {
+    color                    : #FFFFFF;
+    background               : #333333;
+  }
+  a.lev2:hover {
+    color                    : #FFFFFF;
+    background               : #555555;
+  }
+  a.lev3:hover {
+    color                    : #FFFFFF;
+    background               : #777777;
+  }
+  a.lnkicon:link {
+    text-decoration          : none;
+  }
+  a.lnkicon:visited {
+    text-decoration          : none;
+  }
+  a.lnkicon:hover {
+    font-size                : 160%%;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  input, select, textarea {
+    font-size                : 150%%;
+  }
+  input {
+    color                    : #FFFFFF;
+    background-color         : #777777;
+  }
+┃");
+string theme_light_0 = format(q"┃
+  body {
+    color                    : #000000;
+    background               : #FFFFFF;
+    background-color         : #FFFFFF;
+  }
+  a:link {
+    color                    : #003399;
+    text-decoration          : none;
+  }
+  a:visited {
+    color                    : #003399;
+    text-decoration          : none;
+  }
+  a:hover {
+    color                    : #000000;
+    background-color         : #f9f9aa;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  a:active {
+    color                    : #003399;
+    text-decoration          : underline;
+  }
+  a.lev0:hover {
+    color                    : #000000;
+    background-color         : #FFFFFF;
+  }
+  a.lev1:hover {
+    color                    : #FFFFFF;
+    background               : #444444;
+  }
+  a.lev2:hover {
+    background               : #888888;
+  }
+  a.lev3:hover {
+    background               : #BBBBBB;
+  }
+  a.lnkicon:link {
+    text-decoration          : none;
+  }
+  a.lnkicon:visited {
+    text-decoration          : none;
+  }
+  a.lnkicon:hover {
+    font-size                : 160%%;
+  }
+  a:hover img {
+    background-color         : #FFFFFF;
+  }
+  input, select, textarea {
+    font-size                : 150%%;
+  }
+  input {
+    color                    : #000000;
+    background-color         : #FFFFFF;
+  }
+┃");
+string theme_dark_1 = format(q"┃
+  h1 {
+    color                    : #FFFFFF;
+    background               : #000000;
+  }
+  p.letter {
+    color                    : #FFFFFF;
+    background               : #333333;
+  }
+  p.lev0 {
+    color                    : #FFFFFF;
+    background               : #000000;
+  }
+  p.lev1 {
+    color                    : #FFFFFF;
+    background               : #333333;
+  }
+  p.lev2 {
+    background               : #555555;
+  }
+  p.lev3 {
+    background               : #777777;
+  }
+  p.lev4 {
+    background               : #AAAAAA;
+  }
+  p.lev5 {
+  }
+┃");
+string theme_light_1 = format(q"┃
+  h1 {
+    color                    : #FFFFFF;
+    background               : #1A3A7A;
+  }
+  p.letter {
+    color                    : #FFFFFF;
+    background               : #1A3A7A;
+  }
+  p.lev0 {
+    color                    : #FFFFFF;
+    background               : #000000;
+  }
+  p.lev1 {
+    color                    : #FFFFFF;
+    background               : #444444;
+  }
+  p.lev2 {
+    background               : #888888;
+  }
+  p.lev3 {
+    background               : #BBBBBB;
+  }
+  p.lev4 {
+    background               : #EEEEEE;
+  }
+  p.lev5 {
+  }
+┃");
+      topics ~= format(q"┃<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>⌘ Curated metadata - ⌘ Topics</title>
+<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+<meta name="dc.title" content= "metadata curate, Authors & Topics - information Structuring Universe, Structured information Serialised Units" />
+<meta name="dc.subject" content= "document structuring, ebook, publishing, PDF, LaTeX, XML, ODF, SQL, postgresql, sqlite, electronic book, electronic publishing, electronic document, electronic citation, data structure, citation systems, granular search, digital library" />
+<meta name="generator" content="spine" />
+<link rel="generator" href="https://sisudoc.org" />
+<link href="./css/curate.css" rel="stylesheet">
+<style TYPE="text/css">
+/* spine curate css default stylesheet */%s
+  .norm, .bold {
+    line-height              : 150%%;
+    margin-left              : 1em;
+    margin-right             : 2em;
+    margin-top               : 10px;
+    margin-bottom            : 0px;
+    text-indent              : 0mm;
+  }
+  p, h0, h1, h2, h3, h4, h5, h6, h7 {
+    display                  : block;
+    font-family              : verdana, arial, georgia, tahoma, sans-serif, helvetica, times, roman;
+    font-size                : 100%%;
+    font-weight              : normal;
+    line-height              : 150%%;
+    /* text-align            : justify; */
+    margin-left              : 1em;
+    text-indent              : 0mm;
+    margin-top               : 2px;
+    margin-bottom            : 2px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  h0, h1, h2, h3, h4, h5, h6, h7 { text-shadow: .2em .2em .3em #999999; }
+  h1 {
+    font-size                : 120%%;
+    font-weight              : bold;
+    color                    : #FFFFFF;
+    background               : #000088;
+    margin-left              : 0em;
+  }
+  p.work {
+    font-size                : 80%%;
+    margin-left              : 5em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.author {
+    font-size                : 100%%;
+    margin-left              : 2em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.publication {
+    font-size                : 90%%;
+    margin-left              : 4em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.letter {
+    font-weight              : bold;
+    font-size                : 80%%;
+    margin-left              : 1em;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+    text-align               : left;
+  }
+  p.icons, .icons_center {
+    font-size                : 100%%;
+    margin-top               : 0px;
+    margin-bottom            : 0px;
+    margin-right             : 6px;
+  }
+  p.icons {
+    text-align               : left;
+  }
+  p.lev0 {
+    font-size                : 120%%;
+    margin-left              : 1em;
+  }
+  p.lev1 {
+    font-size                : 115%%;
+    margin-left              : 2em;
+  }
+  p.lev2 {
+    font-size                : 110%%;
+    margin-left              : 3em;
+  }
+  p.lev3 {
+    font-size                : 105%%;
+    margin-left              : 4em;
+  }
+  p.lev4 {
+    font-size                : 100%%;
+    margin-left              : 5em;
+  }
+  p.lev5 {
+    font-size                : 95%%;
+    margin-left              : 6em;
+  }%s
+  /* flex */
+  .flex-menu-bar {
+    display                  : -webkit-flex;
+    display                  : flex;
+    -webkit-flex-wrap        : wrap;
+    -webkit-align-items      : center;
+    align-items              : center;
+    width                    : 100%%;
+    margin-left              : 0%%;
+    margin-right             : 2%%;
+    background-color         : inherited;
+  }
+  .flex-menu-option {
+    background-color         : inherited;
+    margin-right             : 4px;
+  }
+  .flex-list {
+    display                  : -webkit-flex;
+    display                  : flex;
+    -webkit-align-items      : center;
+    display                  : block;
+    align-items              : center;
+    width                    : 100%%;
+    background-color         : inherited;
+  }
+  .flex-list-item {
+    background-color         : inherited;
+    margin                   : 4px;
+  }
+</style>
+<link rel="shortcut icon" href="../_sisu/image/rb7.ico" />
+</head>
+<body lang="en" xml:lang="en">
+<a name="top" id="top"></a>
+<a name="up" id="up"></a>
+<a name="start" id="start"></a>
+<h1>⌘ Curated metadata - ⌘ Topics (output organised by language &amp; filetype)</h1>
+<div class="flex-menu-bar">
+<div class="flex-menu-option">
+<p class="icons">[<a href="../../index.html" class="lnkicon">&nbsp;⟰&nbsp;HOME&nbsp;</a>&nbsp;|&nbsp;<a href="../index.html" class="lnkicon">&nbsp;≅&nbsp;Collection&nbsp;</a>]
+ [<a href="authors.html" class="lnkicon">&nbsp;⌘&nbsp;Curated&nbsp;metadata&nbsp;-&nbsp;&#x1F58B;&nbsp;Authors&nbsp;</a>]
+</p>
+</div>
+ %s
+</div>
+<p><a href="#A" class="lnkicon">A</a>,&nbsp;<a href="#B" class="lnkicon">B</a>,&nbsp;<a href="#C" class="lnkicon">C</a>,&nbsp;<a href="#D" class="lnkicon">D</a>,&nbsp;<a href="#E" class="lnkicon">E</a>,&nbsp;<a href="#F" class="lnkicon">F</a>,&nbsp;<a href="#G" class="lnkicon">G</a>,&nbsp;<a href="#H" class="lnkicon">H</a>,&nbsp;<a href="#I" class="lnkicon">I</a>,&nbsp;<a href="#J" class="lnkicon">J</a>,&nbsp;<a href="#K" class="lnkicon">K</a>,&nbsp;<a href="#L" class="lnkicon">L</a>,&nbsp;<a href="#M" class="lnkicon">M</a>,&nbsp;<a href="#N" class="lnkicon">N</a>,&nbsp;<a href="#O" class="lnkicon">O</a>,&nbsp;<a href="#P" class="lnkicon">P</a>,&nbsp;<a href="#Q" class="lnkicon">Q</a>,&nbsp;<a href="#R" class="lnkicon">R</a>,&nbsp;<a href="#S" class="lnkicon">S</a>,&nbsp;<a href="#T" class="lnkicon">T</a>,&nbsp;<a href="#U" class="lnkicon">U</a>,&nbsp;<a href="#V" class="lnkicon">V</a>,&nbsp;<a href="#W" class="lnkicon">W</a>,&nbsp;<a href="#X" class="lnkicon">X</a>,&nbsp;<a href="#Y" class="lnkicon" class="lnkicon">Y</a>,&nbsp;<a href="#Z" class="lnkicon">Z</a>,&nbsp;
+<p></p>
+<hr />
+┃",
+  _opt_action.css_theme_default ? theme_light_0 : theme_dark_0,
+  _opt_action.css_theme_default ? theme_light_1 : theme_dark_1,
+  inline_search_form(_make_and_meta_struct),
+) ~ "\n";
+      char _prev_k = "_".to!char;
+      int _kn;
+      foreach(k0;
+        hvst.subject_trees.keys
+        .sort!("toUpper(a) < toUpper(b)", SwapStrategy.unstable)
+      ) {
+        if (k0.toUpper.to!(char[])[0] != _prev_k) {
+          topics ~= format(q"┃<p class="letter"><a name="%s">%s</a></p><p class="book_index_lev1"><a name="a"></a></p>┃",
+            k0.toUpper.to!(char[])[0],
+            k0.toUpper.to!(char[])[0],
+          );
+          _prev_k = k0.toUpper.to!(char[])[0];
+        }
+        if (k0 != "_a") {
+          topics ~= format(q"┃<p class="lev0"><a name="%s" class="lev0">%s</a></p>┃",
+            k0.translate([' ' : "_"]), k0,) ~ "\n";
+          if (_opt_action.show_curate_topics) {
+            writeln("", k0);
+          }
+          if ("_a" in hvst.subject_trees[k0]) {
+            foreach (t_a_;
+              hvst.subject_trees[k0]["_a"]["_a"]["_a"]
+              .multiSort!("toUpper(a.title) < toUpper(b.title)", "a.author < b.author", SwapStrategy.unstable)
+            ) {
+              _auth = [];
+              if (t_a_.author_arr.length < 2) {
+                _auth = format(q"┃ <a href="authors.html#%s">%s</a>┃",
+                  t_a_.author_surname.translate([' ' : "_"]),
+                  t_a_.author,
+                );
+              } else {
+                foreach (a; t_a_.author_arr) {
+                  _auth ~= format(q"┃ <a href="authors.html#%s">%s</a>,┃",
+                    t_a_.author_surname.translate([' ' : "_"]),
+                    a,
+                  );
+                }
+              }
+              topics ~= format(q"┃<p class="work"><a href="%s">"%s"</a> - %s [<a href="%s">&nbsp;%s&nbsp;</a>]┃",
+                t_a_.path_html_segtoc,
+                t_a_.title,
+                _auth,
+                t_a_.path_html_metadata,
+                t_a_.language,
+              ) ~ "\n";
+              if (_opt_action.show_curate_topics) {
+                writeln("- ", t_a_.title, " - ", t_a_.author);
+              }
+            }
+          }
+          foreach(k1;
+            hvst.subject_trees[k0].keys
+            .sort!("toUpper(a) < toUpper(b)", SwapStrategy.unstable)
+          ) {
+            if (k1 != "_a") {
+              topics ~= format(q"┃<p class="lev1"><a name="%s.%s" class="lev1">%s</a></p>┃",
+                k0.translate([' ' : "_"]),
+                k1.translate([' ' : "_"]), k1,) ~ "\n";
+              if (_opt_action.show_curate_topics) {
+                writeln("  ", k1);
+              }
+              if ("_a" in hvst.subject_trees[k0][k1]) {
+                foreach (t_a_;
+                  hvst.subject_trees[k0][k1]["_a"]["_a"]
+                  .multiSort!("toUpper(a.title) < toUpper(b.title)", "a.author < b.author", SwapStrategy.unstable)
+                ) {
+                  _auth = [];
+                  if (t_a_.author_arr.length < 2) {
+                    _auth = format(q"┃ <a href="authors.html#%s">%s</a>┃",
+                      t_a_.author_surname.translate([' ' : "_"]),
+                      t_a_.author,
+                    );
+                  } else {
+                    foreach (a; t_a_.author_arr) {
+                      _auth ~= format(q"┃ <a href="authors.html#%s">%s</a>,┃",
+                        t_a_.author_surname.translate([' ' : "_"]),
+                        a,
+                      );
+                    }
+                  }
+                  topics ~= format(q"┃<p class="work"><a href="%s">%s</a> - %s [<a href="%s">&nbsp;%s&nbsp;</a>]┃",
+                    t_a_.path_html_segtoc,
+                    t_a_.title,
+                    _auth,
+                    t_a_.path_html_metadata,
+                    t_a_.language,
+                  ) ~ "\n";
+                  if (_opt_action.show_curate_topics) {
+                    writeln("  - ", t_a_.title, " - ", t_a_.author);
+                  }
+                }
+              }
+            }
+            foreach(k2;
+              hvst.subject_trees[k0][k1].keys
+              .sort!("toUpper(a) < toUpper(b)", SwapStrategy.unstable)
+            ) {
+              if (k2 != "_a") {
+                topics ~= format(q"┃<p class="lev2"><a name="%s.%s.%s" class="lev2">%s</a></p>┃",
+                  k0.translate([' ' : "_"]), k1.translate([' ' : "_"]),
+                  k2.translate([' ' : "_"]), k2,) ~ "\n";
+                if (_opt_action.show_curate_topics) {
+                  writeln("    ", k2);
+                }
+                if ("_a" in hvst.subject_trees[k0][k1][k2]) {
+                  foreach (t_a_;
+                    hvst.subject_trees[k0][k1][k2]["_a"]
+                    .multiSort!("toUpper(a.title) < toUpper(b.title)", "a.author < b.author", SwapStrategy.unstable)
+                  ) {
+                    _auth = [];
+                    if (t_a_.author_arr.length < 2) {
+                      _auth = format(q"┃ <a href="authors.html#%s">%s</a>┃",
+                        t_a_.author_surname.translate([' ' : "_"]),
+                        t_a_.author,
+                      );
+                    } else {
+                      foreach (a; t_a_.author_arr) {
+                        _auth ~= format(q"┃ <a href="authors.html#%s">%s</a>,┃",
+                          t_a_.author_surname.translate([' ' : "_"]),
+                          a,
+                        );
+                      }
+                    }
+                    topics ~= format(q"┃<p class="work"><a href="%s">%s</a> - %s [<a href="%s">&nbsp;%s&nbsp;</a>]┃",
+                      t_a_.path_html_segtoc,
+                      t_a_.title,
+                      _auth,
+                      t_a_.path_html_metadata,
+                      t_a_.language,
+                    ) ~ "\n";
+                    if (_opt_action.show_curate_topics) {
+                      writeln("    - ", t_a_.title, " - ", t_a_.author);
+                    }
+                  }
+                }
+              }
+              foreach(k3;
+                hvst.subject_trees[k0][k1][k2].keys
+                .sort!("toUpper(a) < toUpper(b)", SwapStrategy.unstable)
+              ) {
+                if (k3 != "_a") {
+                  topics ~= format(q"┃<p class="lev3"><a name="%s.%s.%s.%s" class="lev3">%s</a></p>┃",
+                    k0.translate([' ' : "_"]), k1.translate([' ' : "_"]), k2.translate([' ' : "_"]),
+                    k3.translate([' ' : "_"]), k3,) ~ "\n";
+                  if (_opt_action.show_curate_topics) {
+                    writeln("      ", k3);
+                  }
+                  {
+                    foreach (t_a_;
+                      hvst.subject_trees[k0][k1][k2][k3]
+                      .multiSort!("toUpper(a.title) < toUpper(b.title)", "a.author < b.author", SwapStrategy.unstable)
+                    ) {
+                      _auth = [];
+                      if (t_a_.author_arr.length < 2) {
+                        _auth = format(q"┃<a href="authors.html#%s">%s</a>┃",
+                          t_a_.author_surname.translate([' ' : "_"]),
+                          t_a_.author,
+                        );
+                      } else {
+                        foreach (a; t_a_.author_arr) {
+                          _auth ~= format(q"┃ <a href="authors.html#%s">%s</a>,┃",
+                            t_a_.author_surname.translate([' ' : "_"]),
+                            a,
+                          );
+                        }
+                      }
+                      topics ~= format(q"┃ <p class="work"><a href="%s">%s</a> - %s [<a href="%s">&nbsp;%s&nbsp;</a>]┃",
+                        t_a_.path_html_segtoc,
+                        t_a_.title,
+                        _auth,
+                        t_a_.path_html_metadata,
+                        t_a_.language,
+                      ) ~ "\n";
+                      if (_opt_action.show_curate_topics) {
+                        writeln("      - ", t_a_.title, " - ", t_a_.author);
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+      topics
+      ~= format(q"┃
+<hr />
+<a name="bottom" id="bottom"></a>
+<a name="down" id="down"></a>
+<a name="end" id="end"></a>
+<a name="finish" id="finish"></a>
+<a name="stop" id="stop"></a>
+<a name="credits"></a>
+</body>
+</html>
+┃") ~ "\n";
+    import sisudoc.io_out.paths_output;
+    auto out_pth = spinePathsHTML!()(_make_and_meta_struct.conf.output_path, "");
+    try {
+      auto f = File(out_pth.curate("topics.html"), "w");
+      foreach (o; topics) {
+        f.writeln(o);
+      }
+    } catch (ErrnoException ex) {
+      // Handle error
+    }
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_from_src.d b/src/sisudoc/meta/metadoc_from_src.d
new file mode 100644
index 0000000..32954f1
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_from_src.d
@@ -0,0 +1,1509 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+// document abstraction:
+// abstraction of sisu markup for downstream processing
+// metadoc_from_src.d
+module sisudoc.meta.metadoc_from_src;
+@safe:
+template docAbstraction() {
+  // ↓ abstraction imports
+  import
+    std.algorithm,
+    std.container,
+    std.file,
+    std.json,
+    std.path;
+  import
+    sisudoc.meta,
+    sisudoc.meta.defaults,
+    sisudoc.meta.rgx,
+    sisudoc.meta.metadoc_object_setter,
+    sisudoc.meta.rgx;
+  public import sisudoc.meta.metadoc_from_src_functions;
+  mixin docAbstractionFunctions;
+  @system auto docAbstraction(CMM,Opt,Mf) (
+    char[][]           markup_sourcefile_content,
+    CMM                conf_make_meta,
+    Opt                opt_action,
+    Mf                 manifested,
+    bool               _new_doc
+  ) {
+    static auto rgx = RgxI();
+    // ↓ abstraction init
+    scope(success) {
+    }
+    scope(failure) {
+    }
+    scope(exit) {
+      destroy(the_document_toc_section);
+      destroy(the_document_head_section);
+      destroy(the_document_body_section);
+      destroy(the_document_bibliography_section);
+      destroy(the_document_glossary_section);
+      destroy(the_document_blurb_section);
+      destroy(the_document_xml_dom_tail_section);
+      destroy(an_object);
+      destroy(processing);
+      destroy(biblio_arr_json);
+      previous_length = 0;
+      reset_note_numbers = true;
+      lev_anchor_tag = "";
+      anchor_tag = "";
+    }
+    mixin spineNode;
+    auto node_para_int_    = node_metadata_para_int;
+    auto node_para_str_    = node_metadata_para_str;
+    ObjGenericComposite comp_obj_;
+    line_occur = [
+      "heading"  : 0,
+      "para"     : 0,
+      "glossary" : 0,
+      "blurb"    : 0,
+    ];
+    uint[string] dochas = [
+      "inline_links"      : 0,
+      "inline_notes"      : 0,
+      "inline_notes_star" : 0,
+      "codeblock"         : 0,
+      "table"             : 0,
+      "block"             : 0,
+      "group"             : 0,
+      "poem"              : 0,
+      "quote"             : 0,
+      "images"            : 0,
+    ];
+    uint[string] pith = [
+      "ocn"                            : 1,
+      "section"                        : 0,
+      "txt_is"                         : 0,
+      "block_is"                       : 0,
+      "block_state"                    : 0,
+      "block_delim"                    : 0,
+      "make_headings"                  : 0,
+      "dummy_heading_status"           : 0,
+      "dummy_heading_multiple_objects" : 0,
+      "no_ocn_multiple_objects"        : 0,
+      "verse_new"                      : 0,
+    ];
+    string[string] object_number_poem = [
+      "start" : "",
+      "end"   : ""
+    ];
+    string[] lv_ancestors_txt = [ "", "", "", "", "", "", "", "", ];
+    int[string] lv = [
+      "lv" : eN.bi.off,
+      "h0" : eN.bi.off,
+      "h1" : eN.bi.off,
+      "h2" : eN.bi.off,
+      "h3" : eN.bi.off,
+      "h4" : eN.bi.off,
+      "h5" : eN.bi.off,
+      "h6" : eN.bi.off,
+      "h7" : eN.bi.off,
+      "lev_int_collapsed" : 0,
+    ];
+    int[string] collapsed_lev = [
+      "h0" : eN.bi.off,
+      "h1" : eN.bi.off,
+      "h2" : eN.bi.off,
+      "h3" : eN.bi.off,
+      "h4" : eN.bi.off,
+      "h5" : eN.bi.off,
+      "h6" : eN.bi.off,
+      "h7" : eN.bi.off
+    ];
+    string[string] heading_match_str = [
+      "h_A": "^(none)",
+      "h_B": "^(none)",
+      "h_C": "^(none)",
+      "h_D": "^(none)",
+      "h_1": "^(none)",
+      "h_2": "^(none)",
+      "h_3": "^(none)",
+      "h_4": "^(none)"
+    ];
+    Regex!char[string] heading_match_rgx = [
+      "h_A": regex(r"^(none)"),
+      "h_B": regex(r"^(none)"),
+      "h_C": regex(r"^(none)"),
+      "h_D": regex(r"^(none)"),
+      "h_1": regex(r"^(none)"),
+      "h_2": regex(r"^(none)"),
+      "h_3": regex(r"^(none)"),
+      "h_4": regex(r"^(none)")
+    ];
+    string _anchor_tag;
+    string toc_txt_;
+    an_object["glossary_nugget"]                                   = "";
+    an_object["blurb_nugget"]                                      = "";
+    comp_obj_                                                      = set_object_heading("lev4", "frontmatter", "toc", "Table of Contents");
+    comp_obj_.metainfo.identifier                                  = "";
+    comp_obj_.metainfo.dummy_heading                               = false;
+    comp_obj_.metainfo.object_number_off                           = true;
+    comp_obj_.metainfo.object_number_type                          = 0;
+    comp_obj_.tags.segment_anchor_tag_epub                         = "toc";
+    comp_obj_.tags.anchor_tag_html                                 = comp_obj_.tags.segment_anchor_tag_epub;
+    comp_obj_.tags.in_segment_html                                 = comp_obj_.tags.anchor_tag_html;
+    comp_obj_.ptr.html_segnames                                    = html_segnames_ptr;
+    comp_obj_.tags.anchor_tags                                     = ["toc"];
+    tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+    tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+    auto toc_head                                                  = comp_obj_;
+    html_segnames_ptr_cntr++;
+    the_document_toc_section = [toc_head];
+    static auto mkup = InlineMarkup();
+    static auto munge = ObjInlineMarkupMunge();
+    auto note_section = NotesSection();
+    auto bookindex_extract_hash = BookIndexNuggetHash();
+    string[][string] lev4_subtoc;
+    string[][string] segnames = ["html": ["toc"], "epub": ["toc"]];
+    int cnt1 = 1; int cnt2 = 1; int cnt3 = 1;
+    // abstraction init ↑
+    debug (substitutions) {
+      writeln(__LINE__, ":", __FILE__, ": DEBUG substitutions:");
+      if (!(conf_make_meta.make.headings.empty)) {
+        writeln(conf_make_meta.make.headings);
+      }
+      if (conf_make_meta.make.substitute) {
+        foreach(substitution_pair; conf_make_meta.make.substitute) {
+           writeln("regex to match:       ", substitution_pair[Substitute.match]);
+           writeln("substitution to make: ", substitution_pair[Substitute.markup]);
+        }
+      }
+      if (conf_make_meta.make.bold) {
+        writeln("regex to match:       ", conf_make_meta.make.bold[Substitute.match]);
+        writeln("substitution to make: ", conf_make_meta.make.bold[Substitute.markup]);
+      }
+      if (conf_make_meta.make.emphasis) {
+        writeln("regex to match:       ", conf_make_meta.make.emphasis[Substitute.match]);
+        writeln("substitution to make: ", conf_make_meta.make.emphasis[Substitute.markup]);
+      }
+      if (conf_make_meta.make.italics) {
+        writeln("regex to match:       ", conf_make_meta.make.italics[Substitute.match]);
+        writeln("substitution to make: ", conf_make_meta.make.italics[Substitute.markup]);
+      }
+    }
+    auto loopMarkupSrcByLine(
+      char[][]         markup_sourcefile_content,
+      string[string]   an_object,
+      uint[string]     pith,
+    ) {
+      _loopMarkupSrcByLineStruct ret;
+      srcDocLoopLineByLine_:
+      foreach (line; markup_sourcefile_content) {
+        // ↓ markup document/text line by line
+        // "line" variable can be empty but should never be null
+        // scope
+        scope(exit) { }
+        scope(failure) {
+          stderr.writefln(
+            "\n%s\n%s\n\n%s:%s\nFAILED while processing the file: ❮❮ %s ❯❯ on line with text:\n%s\n",
+            __MODULE__, __FUNCTION__,
+            __FILE__, __LINE__,
+            manifested.src.filename, line,
+          );
+        }
+        debug(source) { writeln(line); }
+        debug(srclines) { if (!line.empty) { writefln("* %s", line); } }
+        if (!line.empty) { pith = line._check_ocn_status_(pith); }
+        if ( pith["block_is"] == eN.blk_is.code
+          && pith["block_state"] == eN.blk_state.on
+        ) {
+          // block object: code
+          {
+            ST_txt_by_line_block_generic _get = line.txt_by_line_block_code(an_object, pith);
+            {
+              an_object = _get.this_object;
+              pith      = _get.pith;
+            }
+          }
+          continue;
+        } else if (!matchFirst(line, rgx.skip_from_regular_parse)) {
+          // object other than "code block" object
+          // (includes regular text paragraph, headings & blocks other than code)
+          // heading, glossary, blurb, poem, group, block, quote, table
+          line = line.inline_markup_faces; // by text line (rather than by text object), linebreaks in para problematic
+          if (line.matchFirst(rgx.heading_biblio)
+          || (pith["section"] == eN.sect.bibliography
+            && ((!(line.matchFirst(rgx.heading_glossary)))
+            && (!(line.matchFirst(rgx.heading_blurb)))
+            && (!(line.matchFirst(rgx.heading)))
+            && (!(line.matchFirst(rgx.comment)))))
+          ) {
+            pith["section"] = eN.sect.bibliography;
+            if (opt_action.backmatter && opt_action.section_biblio) {
+              {
+                ST_txt_by_line_block_biblio _get = line.txt_by_line_block_biblio(pith, bib_entry, biblio_entry_str_json, biblio_arr_json);
+                {
+                  pith                  = _get.pith;
+                  bib_entry             = _get.bib_entry;
+                  biblio_entry_str_json = _get.biblio_entry_str_json;
+                  biblio_arr_json       = _get.biblio_arr_json;
+                }
+              }
+              debug(bibliobuild) {
+                writeln("-  ", biblio_entry_str_json);
+                writeln("-> ", biblio_arr_json.length);
+              }
+            }
+            continue;
+          } else if (line.matchFirst(rgx.heading_glossary)
+          || (pith["section"] == eN.sect.glossary
+            && ((!(line.matchFirst(rgx.heading_biblio)))
+            && (!(line.matchFirst(rgx.heading_blurb)))
+            && (!(line.matchFirst(rgx.heading)))
+            && (!(line.matchFirst(rgx.comment)))))
+          ) {
+            // within section (block object): glossary
+            debug(glossary) { writeln(__LINE__); writeln(line); }
+            pith["section"] = eN.sect.glossary;
+            if (opt_action.backmatter && opt_action.section_glossary) {
+              ST_the_section add_to_glossary_sect = line.build_the_glossary_section(pith, tag_assoc); // double check, should not be necessary to pass pith
+              the_document_glossary_section ~= add_to_glossary_sect.comp_section_obj[0];
+              if (add_to_glossary_sect.comp_section_obj.length > 1) { // heading
+                the_document_glossary_section ~= add_to_glossary_sect.comp_section_obj[1];
+              }
+              pith      = add_to_glossary_sect.pith;
+              tag_assoc = add_to_glossary_sect.tag_assoc;
+            }
+            continue;
+          } else if (line.matchFirst(rgx.heading_blurb)
+          || (pith["section"] == eN.sect.blurb
+            && ((!(line.matchFirst(rgx.heading_glossary)))
+            && (!(line.matchFirst(rgx.heading_biblio)))
+            && (!(line.matchFirst(rgx.heading)))
+            && (!(line.matchFirst(rgx.comment)))))
+          ) {
+            pith["section"] = eN.sect.blurb;
+            debug(blurb) { writeln(__LINE__); writeln(line); }
+            if ((opt_action.backmatter && opt_action.section_blurb) && !(line.empty)) {
+              ST_the_section add_to_blurb_sect = line.build_the_blurb_section(pith, tag_assoc, opt_action); // double check, should not be necessary to pass pith
+              the_document_blurb_section ~= add_to_blurb_sect.comp_section_obj[0];
+              if (add_to_blurb_sect.comp_section_obj.length > 1) { // heading
+                the_document_blurb_section ~= add_to_blurb_sect.comp_section_obj[1];
+              }
+              pith      = add_to_blurb_sect.pith;
+              tag_assoc = add_to_blurb_sect.tag_assoc;
+            }
+            continue;
+          } else if (pith["block_state"] == eN.blk_state.on) {
+            if (pith["block_is"]    == eN.blk_is.quote) {
+              line = line
+                ._doc_header_and_make_substitutions_(conf_make_meta)
+                ._doc_header_and_make_substitutions_fontface_(conf_make_meta);
+              {
+                auto _get = line.txt_by_line_block_quote(an_object, pith);
+                {
+                  an_object = _get.this_object;
+                  pith      = _get.pith;
+                }
+              }
+              continue;
+            } else if (pith["block_is"]    == eN.blk_is.group) {
+              line = line
+                ._doc_header_and_make_substitutions_(conf_make_meta)
+                ._doc_header_and_make_substitutions_fontface_(conf_make_meta)
+                .replaceAll(rgx.para_delimiter, mkup.br_line_spaced ~ "$1");
+              {
+                auto _get = line.txt_by_line_block_group(an_object, pith);
+                {
+                  an_object = _get.this_object;
+                  pith      = _get.pith;
+                }
+              }
+              continue;
+            } else if (pith["block_is"]    == eN.blk_is.block) {
+              line = line
+                ._doc_header_and_make_substitutions_(conf_make_meta)
+                ._doc_header_and_make_substitutions_fontface_(conf_make_meta);
+              if (auto m = line.match(rgx.spaces_keep)) {
+                line = line
+                  .replaceAll(rgx.spaces_keep, (m.captures[1]).translate([ ' ' : mkup.nbsp ]));
+              }
+              {
+                auto _get = line.txt_by_line_block_block(an_object, pith);
+                {
+                  an_object = _get.this_object;
+                  pith      = _get.pith;
+                }
+              }
+              continue;
+            } else if (pith["block_is"]    == eN.blk_is.poem) {
+              {
+                auto _get = line.txt_by_line_block_poem(an_object, pith, cntr, object_number_poem, conf_make_meta, tag_in_seg);
+                {
+                  an_object = _get.this_object;
+                  pith      = _get.pith;
+                  cntr      = _get.cntr;
+                }
+              }
+              continue;
+            } else if (pith["block_is"]    == eN.blk_is.table) {
+              {
+                auto _get = line.txt_by_line_block_table(an_object, pith, conf_make_meta);
+                {
+                  an_object      = _get.this_object;
+                  pith           = _get.pith;
+                  conf_make_meta = _get.conf_make_meta;
+                }
+              }
+              continue;
+            }
+          } else {
+            // not within a block group
+            assert(
+              (pith["block_state"] == eN.blk_state.off)
+              || (pith["block_state"] == eN.blk_state.closing),
+              "block status: none or closed"
+            );
+            if (line.matchFirst(rgx.block_open)) {
+              if (line.matchFirst(rgx.block_poem_open)) {
+                // poem to verse exceptions!
+                object_reset(an_object);
+                processing.remove("verse");
+                object_number_poem["start"] = obj_cite_digits.object_number.to!string;
+              }
+              {
+                auto _get = line.txt_by_line_block_start(pith, dochas, object_number_poem);
+                {
+                  pith               = _get.pith;
+                  dochas             = _get.dochas;
+                  object_number_poem = _get.object_number_poem;
+                }
+              }
+              continue;
+            } else if (!line.empty) {
+              // line not empty - non blocks (headings, paragraphs) & closed blocks
+              assert(!line.empty, "line tested, line not empty surely:\n  \"" ~ line ~ "\"");
+              assert(
+                (pith["block_state"] == eN.blk_state.off)
+                || (pith["block_state"] == eN.blk_state.closing),
+                "code block status: none or closed"
+              );
+              if (pith["block_state"] == eN.blk_state.closing) {
+                debug(check) { writeln(__LINE__); writeln(line); }
+                assert(
+                  line.matchFirst(rgx.book_index_item)
+                  || line.matchFirst(rgx.book_index_item_open)
+                  || pith["section"] == eN.sect.book_index,
+                  "\nblocks closed, unless followed by book index, non-matching line:\n  \""
+                  ~ line ~ "\""
+                );
+              }
+              if (line.matchFirst(rgx.book_index_item)
+              || line.matchFirst(rgx.book_index_item_open)
+              || pith["section"] == eN.sect.book_index)  {
+                { // book_index
+                  auto _get = line.flow_book_index_(an_object, book_idx_tmp, pith, opt_action);
+                  {
+                    an_object = _get.this_object;
+                    pith      = _get.pith;
+                    book_idx_tmp      = _get.book_idx_tmp;
+                  }
+                }
+              } else {
+                // not book_index
+                an_object_key = "body_nugget";
+                if (auto m = line.matchFirst(rgx.comment)) {
+                  // matched comment
+                  debug(comment) { writeln(line); }
+                  an_object[an_object_key]                ~= line ~= "\n";
+                  comp_obj_comment                        = comp_obj_comment.init;
+                  comp_obj_comment.metainfo.is_of_part    = "comment"; // breaks flow
+                  comp_obj_comment.metainfo.is_of_section = "comment"; // breaks flow
+                  comp_obj_comment.metainfo.is_of_type    = "comment";
+                  comp_obj_comment.metainfo.is_a          = "comment";
+                  comp_obj_comment.text                   = an_object[an_object_key].strip;
+                  the_document_body_section               ~= comp_obj_comment;
+                  {
+                    auto _get = txt_by_line_common_reset_(line_occur, an_object, pith);
+                    {
+                      line_occur = _get.line_occur;
+                      an_object  = _get.this_object;
+                      pith       = _get.pith;
+                    }
+                  }
+                  processing.remove("verse");
+                  ++cntr;
+                } else if ((line_occur["para"] == eN.bi.off
+                  && line_occur["heading"] == eN.bi.off)
+                  && pith["txt_is"] == eN.txt_is.off
+                ) { // heading or para but neither flag nor line exists
+                  if ((conf_make_meta.make.headings.length > 2)
+                  && (pith["make_headings"] == eN.bi.off)) {
+                    // heading found
+                    {
+                      auto _get = line.flow_heading_found_(heading_match_str, conf_make_meta.make.headings, heading_match_rgx, pith);
+                      {
+                        heading_match_str = _get.heading_match_str;
+                        heading_match_rgx = _get.heading_match_rgx;
+                        pith              = _get.pith;
+                      }
+                    }
+                  }
+                  if (pith["make_headings"] == eN.bi.on
+                    && (line_occur["para"] == eN.bi.off
+                    && line_occur["heading"] == eN.bi.off)
+                    && pith["txt_is"] == eN.txt_is.off
+                  ) {
+                    // heading make set
+                    {
+                      auto _get = line.flow_heading_make_set_(line_occur, heading_match_rgx, pith);
+                      {
+                        line      = _get.line;
+                        an_object = _get.this_object;
+                        pith      = _get.pith;
+                      }
+                    }
+                  }
+                  // TODO node info: all headings identified at this point,
+                  // - extract node info here??
+                  // - how long can it wait?
+                  // - should be incorporated in composite objects
+                  // - should happen before endnote links set (they need to be moved down?)
+                  if (line.matchFirst(rgx.headings)) {
+                    // heading match
+                    line = line._doc_header_and_make_substitutions_(conf_make_meta);
+                    {
+                      auto _get = line.flow_heading_matched_(
+                        an_object,
+                        line_occur,
+                        an_object_key,
+                        lv,
+                        collapsed_lev,
+                        pith,
+                        conf_make_meta,
+                      );
+                      {
+                        an_object = _get.this_object;
+                        pith      = _get.pith;
+                      }
+                    }
+                  } else if (line_occur["para"] == eN.bi.off) {
+                    // para match
+                    an_object_key = "body_nugget";
+                    line = line
+                      ._doc_header_and_make_substitutions_(conf_make_meta)
+                      ._doc_header_and_make_substitutions_fontface_(conf_make_meta);
+                    {
+                      auto _get = line.flow_para_match_(an_object, an_object_key, indent, bullet, pith, line_occur);
+                      {
+                        an_object     = _get.this_object;
+                        an_object_key = _get.this_object_key;
+                        pith          = _get.pith;
+                        indent        = _get.indent;
+                        bullet        = _get.bullet;
+                        line_occur    = _get.line_occur;
+                      }
+                    }
+                  }
+                } else if (line_occur["heading"] > eN.bi.off) {
+                  // heading
+                  debug(heading) { writeln(line); }
+                  an_object[an_object_key] ~= line ~= "\n";
+                  ++line_occur["heading"];
+                } else if (line_occur["para"] > eN.bi.off) {
+                  // paragraph
+                  debug(para) { writeln(an_object_key, "-> ", line); }
+                  line = line
+                    ._doc_header_and_make_substitutions_(conf_make_meta)
+                    ._doc_header_and_make_substitutions_fontface_(conf_make_meta);
+                  an_object[an_object_key] ~= " " ~ line;
+                  ++line_occur["para"];
+                }
+              }
+            } else if (pith["block_state"] == eN.blk_state.closing) {
+              // line empty, with blocks flag
+              {
+                auto _get = line.flow_block_flag_line_empty_(
+                  an_object,
+                  bookindex_extract_hash,
+                  the_document_body_section,
+                  bookindex_unordered_hashes,
+                  obj_cite_digits,
+                  comp_obj_,
+                  cntr,
+                  pith,
+                  object_number_poem,
+                  conf_make_meta,
+                  tag_in_seg,
+                );
+                {
+                  an_object                  = _get.this_object;
+                  the_document_body_section  = _get.the_document_body_section;
+                  bookindex_unordered_hashes = _get.bookindex_unordered_hashes;
+                  obj_cite_digits            = _get.obj_cite_digits;
+                  comp_obj_                  = _get.comp_obj_;
+                  cntr                       = _get.cntr;
+                  pith                       = _get.pith;
+                }
+              }
+            } else {
+              // line.empty, post contents, empty variables:
+              assert(
+                line.empty,
+                "\nline should be empty:\n  \""
+                ~ line ~ "\""
+              );
+              assert(
+                (pith["block_state"] == eN.blk_state.off),
+                "code block status: none"
+              );
+              if (_new_doc) {
+                tag_assoc   = tag_assoc.init;
+                lv0to3_tags = lv0to3_tags.init;
+                tag_in_seg  = tag_in_seg.init;
+              }
+              if (pith["txt_is"] == eN.txt_is.heading
+                && line_occur["heading"] > eN.bi.off
+              ) {
+                // heading object (current line empty)
+                obj_cite_digits = (an_object["lev_markup_number"].to!int == 0)
+                ? ocn_emit(eN.ocn.reset)
+                : ocn_emit(pith["ocn"]);
+                an_object["is"] = "heading";
+                an_object_key = "body_nugget";
+                ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_object_and_anchor_tags_struct
+                  = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, ((_new_doc) ? Yes._new_doc : No._new_doc));
+                an_object["substantive"] = substantive_object_and_anchor_tags_struct.obj_txt;
+                anchor_tag = substantive_object_and_anchor_tags_struct.anchor_tag;
+                if (_new_doc) {
+                  cnt1 = 1;
+                  cnt2 = 1;
+                  cnt3 = 1;
+                  _new_doc = false;
+                }
+                if (
+                  an_object["lev_markup_number"].to!int == 4
+                  && (!(anchor_tag.empty)
+                  || (lv0to3_tags.length > 0))
+                ) {
+                  tag_in_seg["seg_lv4"]    = anchor_tag;
+                  tag_in_seg["seg_lv1to4"] = anchor_tag;
+                  lev_anchor_tag = anchor_tag;
+                  tag_assoc[anchor_tag]["seg_lv4"]    = tag_in_seg["seg_lv4"];
+                  tag_assoc[anchor_tag]["seg_lv1to4"] = tag_in_seg["seg_lv1to4"];
+                  if (lv0to3_tags.length > 0) {
+                    // names used for html markup segments 1 to 4 (rather than epub which has separate segments for A to D)
+                    foreach (lv0_to_lv3_html_tag; lv0to3_tags) {
+                      tag_assoc[lv0_to_lv3_html_tag]["seg_lv4"] = anchor_tag;
+                    }
+                  }
+                  anchor_tag_ = anchor_tag;
+                  lv0to3_tags = lv0to3_tags.init;
+                } else if (an_object["lev_markup_number"].to!int > 4) {
+                  tag_in_seg["seg_lv4"]    = anchor_tag_;
+                  tag_in_seg["seg_lv1to4"] = anchor_tag_;
+                  lev_anchor_tag           = anchor_tag;
+                  tag_assoc[anchor_tag]["seg_lv4"] = tag_in_seg["seg_lv4"];
+                  tag_assoc[anchor_tag]["seg_lv1to4"] = tag_in_seg["seg_lv1to4"];
+                } else if (an_object["lev_markup_number"].to!int < 4) {
+                  string segn;
+                  switch (an_object["lev_markup_number"].to!int) {
+                  // names used for epub markup segments A to D
+                  case 0:
+                    segn = "_the_title";
+                    goto default;
+                  case 1:
+                    segn = "_part_" ~ cnt1.to!string;
+                    ++cnt1;
+                    goto default;
+                  case 2:
+                    segn = "_part_" ~ cnt1.to!string ~ "_" ~ cnt2.to!string;
+                    ++cnt2;
+                    goto default;
+                  case 3:
+                    segn =  "_part_" ~ cnt1.to!string ~ "_" ~ cnt2.to!string ~ "_" ~ cnt3.to!string;
+                    ++cnt3;
+                    goto default;
+                  default:
+                    lv0to3_tags ~= obj_cite_digits.object_number.to!string;
+                    lv0to3_tags ~= segn;
+                    tag_in_seg["seg_lv4"]    = segn; // for html segname need following lv4 not yet known
+                    tag_in_seg["seg_lv1to4"] = segn;
+                    break;
+                  }
+                }
+                an_object["bookindex_nugget"]
+                  = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+                bookindex_unordered_hashes
+                  = bookindex_extract_hash.bookindex_nugget_hash(an_object["bookindex_nugget"], obj_cite_digits, tag_in_seg);
+                _anchor_tag                   = obj_cite_digits.identifier;
+                // (incrementally build toc) table of contents here!
+                {
+                  auto _get = obj_im.flow_table_of_contents_gather_headings(
+                    an_object,
+                    conf_make_meta,
+                    tag_in_seg,
+                    _anchor_tag,
+                    lev4_subtoc,
+                    the_document_toc_section,
+                  );
+                  {
+                    the_document_toc_section = _get.the_document_toc_section;
+                    lev4_subtoc              = _get.lev4_subtoc;
+                  }
+                }
+                if (an_object["lev_markup_number"] == "4") {
+                  segnames["html"] ~= tag_in_seg["seg_lv4"];
+                  html_segnames_ptr = html_segnames_ptr_cntr;
+                  html_segnames_ptr_cntr++;
+                }
+                if (an_object["lev_markup_number"].to!int <= 4) {
+                  segnames["epub"] ~= tag_in_seg["seg_lv1to4"];
+                }
+                auto comp_obj_ = node_construct.node_emitter_heading(
+                    an_object,
+                    tag_in_seg,
+                    lev_anchor_tag,
+                    tag_assoc,
+                    obj_cite_digits,                              // OCNset
+                    cntr,                                         // int
+                    heading_ptr,                                  // int
+                    lv_ancestors_txt,                             // string[]
+                    html_segnames_ptr,                            // int
+                    substantive_object_and_anchor_tags_struct,
+                  );
+                ++heading_ptr;
+                debug(segments) {
+                  writeln(an_object["lev_markup_number"]);
+                  writeln(tag_in_seg["seg_lv4"]);
+                  writeln(tag_in_seg["seg_lv1to4"]);
+                }
+                the_document_body_section ~= comp_obj_;
+                debug(objectrelated1) { writeln(line); } // check
+                {
+                  auto _get = txt_by_line_common_reset_(line_occur, an_object, pith);
+                  {
+                    line_occur = _get.line_occur;
+                    an_object  = _get.this_object;
+                    pith       = _get.pith;
+                  }
+                }
+                an_object.remove("lev");
+                an_object.remove("lev_markup_number");
+                processing.remove("verse");
+                ++cntr;
+              } else if (pith["txt_is"] == eN.txt_is.para
+                && line_occur["para"] > eN.bi.off
+              ) { // paragraph object (current line empty) - repeated character paragraph separator
+                if ((an_object[an_object_key].to!string).matchFirst(rgx.repeated_character_line_separator)) {
+                  pith["ocn"] = eN.ocn.off;
+                }
+                obj_cite_digits = ocn_emit(pith["ocn"]);
+                an_object["bookindex_nugget"] = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+                bookindex_unordered_hashes = bookindex_extract_hash.bookindex_nugget_hash(an_object["bookindex_nugget"], obj_cite_digits, tag_in_seg);
+                an_object["is"] = "para";
+                auto comp_obj_ = node_construct.node_location_emitter(
+                    content_non_header,
+                    tag_in_seg,
+                    lev_anchor_tag,
+                    tag_assoc,
+                    obj_cite_digits,
+                    cntr,
+                    heading_ptr-1,
+                    an_object["is"],
+                  );
+                ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+                  = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+                an_object["substantive"] = substantive_obj_misc_struct.obj_txt;
+                anchor_tag = substantive_obj_misc_struct.anchor_tag;
+                comp_obj_                                       = set_object_generic("body", "body", "para", "para", an_object["substantive"].to!string.strip, obj_cite_digits.object_number);
+                comp_obj_.tags.html_segment_anchor_tag_is       = tag_in_seg["seg_lv4"];
+                comp_obj_.tags.epub_segment_anchor_tag_is       = tag_in_seg["seg_lv1to4"];
+                comp_obj_.metainfo.identifier                   = obj_cite_digits.identifier;
+                comp_obj_.metainfo.object_number_off            = (obj_cite_digits.off == 0)   ? true : false; // TODO
+                comp_obj_.metainfo.o_n_book_index               = obj_cite_digits.bkidx;
+                comp_obj_.metainfo.object_number_type           = obj_cite_digits.type;
+                comp_obj_.attrib.indent_hang                    = indent["hang_position"];
+                comp_obj_.attrib.indent_base                    = indent["base_position"];
+                comp_obj_.attrib.bullet                         = bullet;
+                comp_obj_.tags.anchor_tags                      = [anchor_tag]; anchor_tag="";
+                comp_obj_.has.inline_notes_reg                  = substantive_obj_misc_struct.has_notes_reg;
+                comp_obj_.has.inline_notes_star                 = substantive_obj_misc_struct.has_notes_star;
+                comp_obj_.has.inline_links                      = substantive_obj_misc_struct.has_links;
+                comp_obj_.has.image_without_dimensions          = substantive_obj_misc_struct.has_images_without_dimensions;
+                the_document_body_section                       ~= comp_obj_;
+                tag_assoc                                           = an_object.inline_para_link_anchor(tag_in_seg, tag_assoc);
+                {
+                  auto _get = txt_by_line_common_reset_(line_occur, an_object, pith);
+                  {
+                    line_occur = _get.line_occur;
+                    an_object  = _get.this_object;
+                    pith       = _get.pith;
+                  }
+                }
+                indent = [
+                  "hang_position" : 0,
+                  "base_position" : 0,
+                ];
+                bullet = false;
+                processing.remove("verse");
+                ++cntr;
+              // } else { // could be useful to test line variable should be empty and never null
+              }
+            } // close else for line empty
+          } // close else for not the above
+        } // close after non code, other blocks or regular text
+        // unless (the_document_body_section.length == 0) ?
+        if (the_document_body_section.length > 0) {
+          if (((the_document_body_section[$-1].metainfo.is_a == "para")
+            || (the_document_body_section[$-1].metainfo.is_a == "heading")
+            || (the_document_body_section[$-1].metainfo.is_a == "quote")
+            || (the_document_body_section[$-1].metainfo.is_a == "group")
+            || (the_document_body_section[$-1].metainfo.is_a == "block")
+            || (the_document_body_section[$-1].metainfo.is_a == "verse"))
+          && (the_document_body_section.length > previous_length)) {
+            if ((the_document_body_section[$-1].metainfo.is_a == "heading")
+            && (the_document_body_section[$-1].metainfo.heading_lev_markup < 5)) {
+              pith["section"] = eN.sect.unset;
+            }
+            if (the_document_body_section[$-1].metainfo.is_a == "verse") {
+              // scan for endnotes for whole poem (each verse in poem)
+              foreach (i; previous_length .. the_document_body_section.length) {
+                if (the_document_body_section[i].metainfo.is_a == "verse") {
+                  if ((the_document_body_section[i].text).match(
+                    rgx.inline_notes_al_all_note
+                  )) {
+                    object_notes = note_section.gather_notes_for_endnote_section(
+                      the_document_body_section,
+                      tag_in_seg,
+                      (i).to!int,
+                    );
+                  }
+                }
+              }
+            } else {
+              // scan object for endnotes
+              previous_length = the_document_body_section.length.to!int;
+              if ((the_document_body_section[$-1].text).match(
+                rgx.inline_notes_al_all_note
+              )) {
+                previous_count = (the_document_body_section.length -1).to!int;
+                object_notes = note_section.gather_notes_for_endnote_section(
+                  the_document_body_section,
+                  tag_in_seg,
+                  (the_document_body_section.length-1).to!int,
+                );
+              }
+            }
+            previous_length = the_document_body_section.length.to!int;
+          }
+        }
+      }
+      ret.toc          = the_document_toc_section;
+      ret.body         = the_document_body_section;
+      ret.glossary     = the_document_glossary_section;
+      ret.blurb        = the_document_blurb_section;
+      ret.object_notes = object_notes;
+      ret.segnames     = segnames;
+      return ret;
+    }
+    { // loopMarkupSrcByLine
+      auto _doc_by_line = loopMarkupSrcByLine(markup_sourcefile_content, an_object, pith);
+      the_document_toc_section      = _doc_by_line.toc;
+      the_document_body_section     = _doc_by_line.body;
+      the_document_glossary_section = _doc_by_line.glossary;
+      the_document_blurb_section    = _doc_by_line.blurb;
+      segnames                      = _doc_by_line.segnames;
+      object_notes                  = _doc_by_line.object_notes; // endnotes, compare, not sure is used
+      destroy(_doc_by_line);
+    }
+    { // EOF  backMatter
+      comp_obj_                                              = set_object_heading("lev1", "backmatter", "tail", "");
+      comp_obj_.metainfo.identifier                          = "";
+      comp_obj_.metainfo.dummy_heading                       = false;
+      comp_obj_.metainfo.object_number_off                   = false;
+      comp_obj_.metainfo.object_number_type                  = 0;
+      comp_obj_.tags.segment_anchor_tag_epub                 = "_part_eof";
+      comp_obj_.tags.anchor_tag_html                         = comp_obj_.tags.segment_anchor_tag_epub;
+      comp_obj_.tags.in_segment_html                         = "tail";
+      comp_obj_.tags.anchor_tags                             = ["section_eof"];
+      comp_obj_.metainfo.dom_structure_markedup_tags_status  = [ 0, 0, 0, 0, 0, 0, 0, 0];
+      comp_obj_.metainfo.dom_structure_collapsed_tags_status = [ 0, 0, 0, 0, 0, 0, 0, 0];
+      the_document_xml_dom_tail_section                              ~= comp_obj_;
+      tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+      tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+    }
+    // endNotes
+    ST_endnotes en_st = note_section.backmatter_endnote_objects(obj_cite_digits, opt_action);
+    { // endnotes
+      the_document_endnotes_section = en_st.endnotes;
+      obj_cite_digits = en_st.ocn;
+      debug(endnotes) {
+        writefln("%s %s", __LINE__, the_document_endnotes_section.length);
+        foreach (o; the_document_endnotes_section) { writeln(o); }
+      }
+    }
+    { // glossary
+      if (an_object["glossary_nugget"].length == 0) {
+        comp_obj_                                   = set_object_heading("lev1", "empty", "empty", "(skip) there is no Glossary section");
+        comp_obj_.metainfo.identifier               = "";
+        comp_obj_.metainfo.dummy_heading            = true;
+        comp_obj_.metainfo.object_number_off        = true;
+        comp_obj_.metainfo.object_number_type       = 0;
+        the_document_glossary_section               ~= comp_obj_;
+      }
+      debug(glossary) { foreach (gloss; the_document_glossary_section) { writeln(gloss.text); } }
+    }
+    { // bibliography
+      string[] biblio_unsorted_incomplete = biblio_arr_json.dup;
+      ST_biblio_section biblio_section    = backmatter_make_the_bibliography_section(biblio_unsorted_incomplete, bib_arr_json);
+      the_document_bibliography_section   = biblio_section.bibliography_section;
+      tag_assoc                           = biblio_section.tag_assoc;
+    }
+    { // bookindex
+      BookIndexReportSection bi = BookIndexReportSection();
+      ST_bookindex bi_st
+        = bi.backmatter_bookindex_build_abstraction_section(bookindex_unordered_hashes, obj_cite_digits, opt_action);
+      destroy(bookindex_unordered_hashes);
+      the_document_bookindex_section = bi_st.bookindex;
+      obj_cite_digits = bi_st.ocn;
+      debug(bookindex) { foreach (bi_entry; the_document_bookindex_section) { writeln(bi_entry); } }
+    }
+    { // blurb
+      if (an_object["blurb_nugget"].length == 0) {
+        comp_obj_                                   = set_object_heading("lev1", "empty", "empty", "(skip) there is no Blurb section");
+        comp_obj_.metainfo.identifier               = "";
+        comp_obj_.metainfo.object_number_off        = true;
+        comp_obj_.metainfo.object_number_type       = 0;
+        comp_obj_.tags.segment_anchor_tag_epub      = "";
+        comp_obj_.tags.anchor_tag_html              = "";
+        comp_obj_.tags.in_segment_html              = "";
+        the_document_blurb_section                  ~= comp_obj_;
+      }
+      debug(blurb) { foreach (blurb; the_document_blurb_section) { writeln(blurb.text); } }
+    }
+    { // toc gather backmatter
+      the_document_toc_section ~= backmatter_gather_table_of_contents(the_document_endnotes_section, the_document_glossary_section, the_document_bibliography_section, the_document_bookindex_section, the_document_blurb_section); //
+    }
+    { // document head and body
+      the_document_head_section ~= the_document_body_section[0];
+      the_document_body_section = the_document_body_section[1..$];
+    }
+    { // document ancestors
+      ST_ancestors get_ancestors;
+      get_ancestors = the_document_body_section.after_doc_determine_ancestors(the_document_endnotes_section, the_document_glossary_section, the_document_bibliography_section, the_document_bookindex_section, the_document_blurb_section);
+      the_document_body_section         = get_ancestors.the_document_body_section;
+      the_document_endnotes_section     = get_ancestors.the_document_endnotes_section;
+      the_document_glossary_section     = get_ancestors.the_document_glossary_section;
+      the_document_bibliography_section = get_ancestors.the_document_bibliography_section;
+      the_document_bookindex_section    = get_ancestors.the_document_bookindex_section;
+      the_document_blurb_section        = get_ancestors.the_document_blurb_section;
+    }
+    { // document segnames
+      ST_segnames get_segnames;
+      get_segnames = the_document_body_section.after_doc_determine_segnames(the_document_endnotes_section, the_document_glossary_section, the_document_bibliography_section, the_document_bookindex_section, the_document_blurb_section, segnames, html_segnames_ptr_cntr, html_segnames_ptr); //
+      segnames                          = get_segnames.segnames;
+      html_segnames_ptr_cntr            = get_segnames.html_segnames_ptr_cntr;
+      html_segnames_ptr                 = get_segnames.html_segnames_ptr;
+    }
+    // document head
+    string[] segnames_0_to_4;
+    foreach (ref obj; the_document_head_section) {
+      if (obj.metainfo.is_a == "heading") {
+        debug(dom) { writeln(obj.text); }
+        if (obj.metainfo.heading_lev_markup <= 4) {
+          segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+        }
+        if (obj.metainfo.heading_lev_markup == 0) {
+          // TODO second hit (of two) with same assertion failure, check, fix and reinstate
+          // assert( obj.metainfo.ocn == 1,
+          //   "Title OCN should be 1 not: " ~ obj.metainfo.ocn.to!string); // bug introduced 0.18.1
+          obj.metainfo.ocn = 1;
+          obj.metainfo.identifier = "1";
+          obj.metainfo.object_number_type = OCNtype.ocn;
+        }
+        // dom structure (marked up & collapsed)
+        if (opt_action.meta_processing_xml_dom) {
+          obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+          obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+        }
+        obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+      }
+      obj = _links(obj);
+    }
+    if (the_document_toc_section.length > 1) {
+      // scroll
+      dom_structure_markedup_tags_status_buffer = dom_structure_markedup_tags_status.dup;
+      dom_structure_collapsed_tags_status_buffer = dom_structure_collapsed_tags_status.dup;
+      foreach (ref obj; the_document_toc_section) {
+        if (obj.metainfo.is_a == "heading") {
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+            if (obj.metainfo.heading_lev_markup == 4) {
+              obj.tags.segname_next = segnames["html"][obj.ptr.html_segnames + 1];
+              assert(obj.tags.anchor_tag_html == segnames["html"][obj.ptr.html_segnames],
+                obj.tags.anchor_tag_html ~ "!=" ~ segnames["html"][obj.ptr.html_segnames]);
+            }
+          }
+          // dom structure (marked up & collapsed)
+          if (opt_action.meta_processing_xml_dom) {
+            obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+            obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+          }
+          obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+        }
+        obj = _links(obj);
+      }
+    }
+    // images
+    string[] _images;
+    // multiple 1~ levels, loop through document body
+    if (the_document_body_section.length > 1) {
+      foreach (ref obj; the_document_body_section) {
+        if (!(obj.metainfo.identifier.empty)) {
+          if (!(((obj.metainfo.identifier) in tag_assoc)
+            && ("seg_lv4" in tag_assoc[(obj.metainfo.identifier)]))
+          ) {
+            tag_assoc[(obj.metainfo.identifier)]["seg_lv4"]
+            = obj.tags.html_segment_anchor_tag_is;
+          }
+          tag_assoc[(obj.metainfo.identifier)]["seg_lv1to4"]
+          = obj.tags.epub_segment_anchor_tag_is;
+        }
+        if (obj.metainfo.is_a == "heading") {
+          debug(dom) { writeln(obj.text); }
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+            if (obj.metainfo.heading_lev_markup == 4) {
+              obj.tags.lev4_subtoc = lev4_subtoc[obj.tags.anchor_tag_html];
+              obj.tags.segname_prev = segnames["html"][obj.ptr.html_segnames - 1];
+              if (segnames["html"].length > obj.ptr.html_segnames + 1) {
+                obj.tags.segname_next = segnames["html"][obj.ptr.html_segnames + 1];
+              }
+              assert(obj.tags.anchor_tag_html == segnames["html"][obj.ptr.html_segnames],
+                obj.tags.anchor_tag_html ~ "!=" ~ segnames["html"][obj.ptr.html_segnames]);
+            }
+          }
+          // dom structure (marked up & collapsed)
+          if (opt_action.meta_processing_xml_dom) {
+            obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+            obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+          }
+          obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+        } else if (obj.metainfo.is_a == "para") {
+           _images ~= extract_images(obj.text);
+           obj = _image_dimensions(obj, manifested);
+        }
+        obj = _links(obj);
+      }
+    }
+    auto image_list = (_images.sort()).uniq;
+    // endnotes optional only one 1~ level
+    if (the_document_endnotes_section.length > 1) {
+      dom_structure_markedup_tags_status_buffer           = dom_structure_markedup_tags_status.dup;
+      dom_structure_collapsed_tags_status_buffer          = dom_structure_collapsed_tags_status.dup;
+      dom_structure_markedup_tags_status                  = dom_structure_markedup_tags_status_buffer.dup;
+      dom_structure_collapsed_tags_status                 = dom_structure_collapsed_tags_status_buffer.dup;
+      foreach (ref obj; the_document_endnotes_section) {
+        if (obj.metainfo.is_a == "heading") {
+          debug(dom) { writeln(obj.text); }
+          if (obj.metainfo.heading_lev_markup == 1) {
+            obj_cite_digits                               = ocn_emit(eN.ocn.on);
+            obj.metainfo.ocn                              = obj_cite_digits.object_number;
+            obj.metainfo.identifier                       = obj_cite_digits.identifier;
+          }
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+            if (obj.metainfo.heading_lev_markup == 4) {
+              obj.tags.segname_prev = segnames["html"][obj.ptr.html_segnames - 1];
+              if (segnames["html"].length > obj.ptr.html_segnames + 1) {
+                obj.tags.segname_next = segnames["html"][obj.ptr.html_segnames + 1];
+              }
+              assert(obj.tags.anchor_tag_html == segnames["html"][obj.ptr.html_segnames],
+                obj.tags.anchor_tag_html ~ "!=" ~ segnames["html"][obj.ptr.html_segnames]);
+            }
+          }
+          // dom structure (marked up & collapsed)
+          if (opt_action.meta_processing_xml_dom) {
+            obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+            obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+          }
+          obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+        }
+        obj = _links(obj);
+      }
+    }
+    // glossary optional only one 1~ level
+    if (the_document_glossary_section.length > 1) {
+      foreach (ref obj; the_document_glossary_section) {
+        if (obj.metainfo.is_a == "heading") {
+          debug(dom) { writeln(obj.text); }
+          if (obj.metainfo.heading_lev_markup == 1) {
+            obj_cite_digits                               = ocn_emit(eN.ocn.on);
+            obj.metainfo.ocn                              = obj_cite_digits.object_number;
+            obj.metainfo.identifier                       = obj_cite_digits.identifier;
+          }
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+            if (obj.metainfo.heading_lev_markup == 4) {
+              obj.tags.segname_prev = segnames["html"][obj.ptr.html_segnames - 1];
+              if (segnames["html"].length > obj.ptr.html_segnames + 1) {
+                obj.tags.segname_next = segnames["html"][obj.ptr.html_segnames + 1];
+              }
+              assert(obj.tags.anchor_tag_html == segnames["html"][obj.ptr.html_segnames],
+                obj.tags.anchor_tag_html ~ "!=" ~ segnames["html"][obj.ptr.html_segnames]);
+            }
+          }
+          // dom structure (marked up & collapsed)
+          if (opt_action.meta_processing_xml_dom) {
+            obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+            obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+          }
+          obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+        } else if (obj.metainfo.is_a == "glossary" && !(obj.text.empty)) {
+          obj_cite_digits         = ocn_emit(eN.ocn.on);
+          obj.metainfo.ocn        = obj_cite_digits.object_number;
+          obj.metainfo.identifier = obj_cite_digits.identifier;
+        }
+        obj = _links(obj);
+      }
+    }
+    // bibliography optional only one 1~ level
+    if (the_document_bibliography_section.length > 1) {
+      foreach (ref obj; the_document_bibliography_section) {
+        if (obj.metainfo.is_a == "heading") {
+          debug(dom) { writeln(obj.text); }
+          if (obj.metainfo.heading_lev_markup == 1) {
+            obj_cite_digits                               = ocn_emit(eN.ocn.on);
+            obj.metainfo.ocn                              = obj_cite_digits.object_number;
+            obj.metainfo.identifier                       = obj_cite_digits.identifier;
+          }
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+            if (obj.metainfo.heading_lev_markup == 4) {
+              obj.tags.segname_prev = segnames["html"][obj.ptr.html_segnames - 1];
+              if (segnames["html"].length > obj.ptr.html_segnames + 1) {
+                obj.tags.segname_next = segnames["html"][obj.ptr.html_segnames + 1];
+              }
+              assert(obj.tags.anchor_tag_html == segnames["html"][obj.ptr.html_segnames],
+                obj.tags.anchor_tag_html ~ "!=" ~ segnames["html"][obj.ptr.html_segnames]);
+            }
+          }
+          // dom structure (marked up & collapsed)
+          if (opt_action.meta_processing_xml_dom) {
+            obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+            obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+          }
+          obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+        } else if (obj.metainfo.is_a == "bibliography") {
+          obj_cite_digits                                 = ocn_emit(eN.ocn.on);
+          obj.metainfo.ocn                                = obj_cite_digits.object_number;
+          obj.metainfo.identifier                         = obj_cite_digits.identifier;
+        }
+        obj = _links(obj);
+      }
+    }
+    // book index, optional only one 1~ level
+    int ocn_       = obj_cite_digits.object_number;
+    int ocn_bkidx_ = 0;
+    int ocn_bidx_;
+    if (the_document_bookindex_section.length > 1) {                                        // scroll
+      dom_structure_markedup_tags_status_buffer = dom_structure_markedup_tags_status.dup;
+      dom_structure_collapsed_tags_status_buffer = dom_structure_collapsed_tags_status.dup;
+      foreach (ref obj; the_document_bookindex_section) {
+        if (obj.metainfo.is_a == "heading") {
+          // debug(dom) { }
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+          }
+          if (obj.metainfo.heading_lev_markup == 1) {
+            obj_cite_digits                               = ocn_emit(eN.ocn.on);
+            obj.metainfo.ocn                              = obj_cite_digits.object_number;
+            obj.metainfo.identifier                       = obj_cite_digits.identifier;
+          }
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            if (obj.metainfo.heading_lev_markup == 4) {
+              obj.tags.segname_prev = segnames["html"][obj.ptr.html_segnames - 1];
+              if (segnames["html"].length > obj.ptr.html_segnames + 1) {
+                obj.tags.segname_next = segnames["html"][obj.ptr.html_segnames + 1];
+              }
+              assert(obj.tags.anchor_tag_html == segnames["html"][obj.ptr.html_segnames],
+                obj.tags.anchor_tag_html ~ "!=" ~ segnames["html"][obj.ptr.html_segnames]);
+            }
+          }
+          // dom structure (marked up & collapsed)
+          if (opt_action.meta_processing_xml_dom) {
+            obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+            obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+          }
+          obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+        } else if (obj.metainfo.is_a == "bookindex") {
+          obj_cite_digits                                 = ocn_emit(eN.ocn.bkidx);
+          obj.metainfo.ocn                                = obj_cite_digits.object_number;
+          obj.metainfo.identifier                         = obj_cite_digits.identifier;
+          obj.metainfo.o_n_book_index                     = obj_cite_digits.bkidx;
+          obj.metainfo.object_number_type                 = OCNtype.bkidx;
+        }
+        obj = _links(obj);
+      }
+      // TODO assert failure, reinstate
+      // assert(obj_cite_digit_bkidx == ocn_bidx_ obj_cite_digit_bkidx ~ " == ocn_" ~ ocn_ ~ "?");
+    }
+    // blurb optional only one 1~ level
+    if (the_document_blurb_section.length > 1) {
+      foreach (ref obj; the_document_blurb_section) {
+        if (obj.metainfo.is_a == "heading") {
+          debug(dom) { writeln(obj.text); }
+          if (obj.metainfo.heading_lev_markup == 1) {
+            obj_cite_digits                               = ocn_emit(eN.ocn.on);
+            obj.metainfo.ocn                              = obj_cite_digits.object_number;
+            obj.metainfo.identifier                       = obj_cite_digits.identifier;
+          }
+          if (obj.metainfo.heading_lev_markup <= 4) {
+            segnames_0_to_4 ~= obj.tags.segment_anchor_tag_epub;
+            if (obj.metainfo.heading_lev_markup == 4) {
+              obj.tags.segname_prev = segnames["html"][obj.ptr.html_segnames - 1];
+              if (segnames["html"].length > obj.ptr.html_segnames + 1) {
+                obj.tags.segname_next = segnames["html"][obj.ptr.html_segnames + 1];
+              }
+              assert(obj.tags.anchor_tag_html == segnames["html"][obj.ptr.html_segnames],
+                obj.tags.anchor_tag_html ~ "!=" ~ segnames["html"][obj.ptr.html_segnames]);
+            }
+          }
+          // dom structure (marked up & collapsed)
+          if (opt_action.meta_processing_xml_dom) {
+            obj = obj.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, obj.metainfo.heading_lev_markup);
+            obj = obj.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, obj.metainfo.heading_lev_collapsed);
+          }
+          obj = obj.obj_heading_ancestors(lv_ancestors_txt);
+        } else if (obj.metainfo.is_a == "blurb") {
+          obj_cite_digits                                 = ocn_emit(eN.ocn.off);
+          obj.metainfo.object_number_off                  = obj_cite_digits.off;
+          obj.metainfo.object_number_type                 = OCNtype.non;
+        }
+        obj = _links(obj);
+      }
+    }
+    // get descendants
+    if (the_document_body_section.length > 1) {
+      auto pairs = after_doc_get_descendants(
+        the_document_head_section ~
+        the_document_body_section ~
+        the_document_endnotes_section ~
+        the_document_glossary_section ~
+        the_document_bibliography_section ~
+        the_document_bookindex_section ~
+        the_document_blurb_section ~
+        the_document_xml_dom_tail_section
+      );
+      debug(descendants_tuple) {
+        pairs = pairs.sort();
+        foreach (pair; pairs) { // (pair; pairs.sort())
+          writeln(pair[0], "..", pair[1]);
+        }
+      }
+      foreach (ref obj; the_document_head_section) {
+        if (obj.metainfo.is_a == "heading") {
+          foreach (pair; pairs) {
+            if (obj.metainfo.ocn == pair[0]) {
+              obj.metainfo.last_descendant_ocn = pair[1];
+            }
+          }
+        }
+      }
+      if (the_document_body_section.length > 1) {
+        foreach (ref obj; the_document_body_section) {
+          if (obj.metainfo.is_a == "heading") {
+            foreach (pair; pairs) {
+              if (obj.metainfo.ocn == pair[0]) {
+                obj.metainfo.last_descendant_ocn = pair[1];
+              }
+            }
+          }
+        }
+      }
+      if (the_document_endnotes_section.length > 1) {
+        foreach (ref obj; the_document_endnotes_section) {
+          if (obj.metainfo.is_a == "heading") {
+            foreach (pair; pairs) {
+              if (obj.metainfo.ocn == pair[0]) {
+                obj.metainfo.last_descendant_ocn = pair[1];
+              }
+            }
+          }
+        }
+      }
+      if (the_document_glossary_section.length > 1) {
+        foreach (ref obj; the_document_glossary_section) {
+          if (obj.metainfo.is_a == "heading") {
+            foreach (pair; pairs) {
+              if (obj.metainfo.ocn == pair[0]) {
+                obj.metainfo.last_descendant_ocn = pair[1];
+              }
+            }
+          }
+        }
+      }
+      if (the_document_bibliography_section.length > 1) {
+        foreach (ref obj; the_document_bibliography_section) {
+          if (obj.metainfo.is_a == "heading") {
+            foreach (pair; pairs) {
+              if (obj.metainfo.ocn == pair[0]) {
+                obj.metainfo.last_descendant_ocn = pair[1];
+              }
+            }
+          }
+        }
+      }
+      if (the_document_bookindex_section.length > 1) {
+        foreach (ref obj; the_document_bookindex_section) {
+          if (obj.metainfo.is_a == "heading") {
+            foreach (pair; pairs) {
+              if (obj.metainfo.ocn == pair[0]) {
+                obj.metainfo.last_descendant_ocn = pair[1];
+              }
+            }
+          }
+        }
+      }
+      if (the_document_blurb_section.length > 1) {
+        foreach (ref obj; the_document_blurb_section) {
+          if (obj.metainfo.is_a == "heading") {
+            foreach (pair; pairs) {
+              if (obj.metainfo.ocn == pair[0]) {
+                obj.metainfo.last_descendant_ocn = pair[1];
+              }
+            }
+          }
+        }
+      }
+      if (the_document_xml_dom_tail_section.length > 1) {
+        foreach (ref obj; the_document_xml_dom_tail_section) {
+          if (obj.metainfo.is_a == "heading") {
+            foreach (pair; pairs) {
+              if (obj.metainfo.ocn == pair[0]) {
+                obj.metainfo.last_descendant_ocn = pair[1];
+              }
+            }
+          }
+        }
+      }
+    }
+    // TODO
+    //  - note create/insert heading object sole purpose eof close all open tags
+    //    sort out:
+    //    - obj.metainfo.dom_structure_markedup_tags_status = dom_structure_markedup_tags_status;
+    //    - obj.metainfo.dom_structure_collapsed_tags_status = dom_structure_collapsed_tags_status;
+    comp_obj_                                               = set_object_heading("lev1", "empty", "empty", "");
+    comp_obj_.metainfo.identifier                           = "";
+    comp_obj_.metainfo.dummy_heading                        = true;
+    comp_obj_.metainfo.object_number_off                    = true;
+    comp_obj_.metainfo.object_number_type                   = 0;
+    comp_obj_.tags.segment_anchor_tag_epub                  = "";
+    comp_obj_.tags.anchor_tag_html                          = "";
+    comp_obj_.tags.in_segment_html                          = "";
+    comp_obj_.tags.html_segment_anchor_tag_is               = "";
+    comp_obj_.tags.epub_segment_anchor_tag_is               = "";
+    comp_obj_.metainfo.heading_lev_markup                   = 9;
+    comp_obj_.metainfo.heading_lev_collapsed                = 9;
+    comp_obj_.metainfo.parent_ocn                           = 0;
+    comp_obj_.metainfo.parent_lev_markup                    = 0;
+    comp_obj_.metainfo.dom_structure_markedup_tags_status   = dom_structure_markedup_tags_status.dup;
+    comp_obj_.metainfo.dom_structure_collapsed_tags_status  = dom_structure_collapsed_tags_status.dup;
+    comp_obj_ = comp_obj_.obj_dom_structure_set_markup_tags(dom_structure_markedup_tags_status, 0);
+    comp_obj_ = comp_obj_.obj_dom_set_collapsed_tags(dom_structure_collapsed_tags_status, 0);
+    comp_obj_ = comp_obj_.obj_heading_ancestors(lv_ancestors_txt);
+    // the_dom_tail_section                      ~= comp_obj_; // remove tail for now, decide on later
+    // the doc
+    ObjGenericComposite[][string] document_the = [
+      "head":             the_document_head_section,
+      "toc":              the_document_toc_section,
+      // substantive/body:
+      "body":             the_document_body_section,
+      // backmatter:
+      "endnotes":         the_document_endnotes_section,
+      "glossary":         the_document_glossary_section,
+      "bibliography":     the_document_bibliography_section,
+      "bookindex":        the_document_bookindex_section,
+      "blurb":            the_document_blurb_section,
+      // dom tail only
+      "tail":             the_document_xml_dom_tail_section,
+    ];
+    // document parts keys as needed
+    string[][string] document_section_keys_sequenced = [
+      "scroll": ["head", "toc", "body",],
+      "seg":    ["head", "toc", "body",],
+      "sql":    ["head", "body",],
+      "latex":  ["head", "toc", "body",]
+    ];
+    if (document_the["endnotes"].length > 1) {
+      document_section_keys_sequenced["scroll"] ~= "endnotes";
+      document_section_keys_sequenced["seg"]    ~= "endnotes";
+      document_section_keys_sequenced["latex"]  ~= "endnotes";
+    }
+    if (document_the["glossary"].length > 1) {
+      document_section_keys_sequenced["scroll"] ~= "glossary";
+      document_section_keys_sequenced["seg"]    ~= "glossary";
+      document_section_keys_sequenced["sql"]    ~= "glossary";
+      document_section_keys_sequenced["latex"]  ~= "glossary";
+    }
+    if (document_the["bibliography"].length > 1) {
+      document_section_keys_sequenced["scroll"] ~= "bibliography";
+      document_section_keys_sequenced["seg"]    ~= "bibliography";
+      document_section_keys_sequenced["sql"]    ~= "bibliography";
+      document_section_keys_sequenced["latex"]  ~= "bibliography";
+    }
+    if (document_the["bookindex"].length > 1) {
+      document_section_keys_sequenced["scroll"] ~= "bookindex";
+      document_section_keys_sequenced["seg"]    ~= "bookindex";
+      document_section_keys_sequenced["sql"]    ~= "bookindex";
+      document_section_keys_sequenced["latex"]  ~= "bookindex";
+    }
+    if (document_the["blurb"].length > 1) {
+      document_section_keys_sequenced["scroll"] ~= "blurb";
+      document_section_keys_sequenced["seg"]    ~= "blurb";
+      document_section_keys_sequenced["sql"]    ~= "blurb";
+      document_section_keys_sequenced["latex"]  ~= "blurb";
+    }
+    if ((opt_action.html)
+    || (opt_action.html_scroll)
+    || (opt_action.html_seg)
+    || (opt_action.epub)) {
+      document_section_keys_sequenced["scroll"] ~= "tail";
+      document_section_keys_sequenced["seg"]    ~= "tail";
+    }
+    // segnames
+    string[] segnames_4                 = segnames["html"].dup;
+    string[] segnames_lv1to4            = segnames["epub"].dup;
+    debug(segnames) {
+      writeln("segnames_lv4:    ", segnames_4);
+      writeln("segnames_lv1to4: ", segnames_lv1to4);
+    }
+    // restart
+    destroy(the_document_head_section);
+    destroy(the_document_toc_section);
+    destroy(the_document_body_section);
+    destroy(the_document_endnotes_section);
+    destroy(the_document_glossary_section);
+    destroy(the_document_bibliography_section);
+    destroy(the_document_bookindex_section);
+    destroy(the_document_blurb_section);
+    destroy(the_document_xml_dom_tail_section);
+    destroy(segnames);
+    destroy(bookindex_unordered_hashes);
+    destroy(an_object);
+    obj_cite_digits                             = ocn_emit(eN.ocn.reset);
+    biblio_arr_json                             = [];
+    obj_cite_digit_                             = 0;
+    html_segnames_ptr                           = 0;
+    html_segnames_ptr_cntr                      = 0;
+    content_non_header                          = "8";
+    dom_structure_markedup_tags_status          = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    dom_structure_markedup_tags_status_buffer   = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    dom_structure_collapsed_tags_status         = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    dom_structure_collapsed_tags_status_buffer  = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    lev_anchor_tag = "";
+    anchor_tag = "";
+    // identify parts
+    struct DocHas_ {
+      uint inline_links() {
+        return dochas["inline_links"];
+      }
+      uint inline_notes_reg() {
+        return dochas["inline_notes"];
+      }
+      uint inline_notes_star() {
+        return dochas["inline_notes_star"];
+      }
+      uint codeblocks() {
+        return dochas["codeblock"];
+      }
+      uint tables() {
+        return dochas["table"];
+      }
+      uint blocks() {
+        return dochas["block"];
+      }
+      uint groups() {
+        return dochas["group"];
+      }
+      uint poems() {
+        return dochas["poem"];
+      }
+      uint quotes() {
+        return dochas["quote"];
+      }
+      ulong images() { // TODO not ideal rethink
+        return (image_list.to!string.strip("[","]").split(",").length);
+      }
+      auto imagelist() {
+        return image_list;
+      }
+      auto keys_seq() {
+        return docSectKeysSeq!()(document_section_keys_sequenced);
+      }
+      string[] segnames_lv4() {
+        return segnames_4;
+      }
+      string[] segnames_lv_0_to_4() {
+        return segnames_0_to_4;
+      }
+      string[string][string] tag_associations() {
+        return tag_assoc;
+      }
+    }
+    auto doc_has() {
+      return DocHas_();
+    }
+    // the doc to be returned
+    struct ST_docAbstraction {
+      ObjGenericComposite[][string] document_the;
+      DocHas_                       doc_has;
+    }
+    ST_docAbstraction ret;
+    {
+      ret.document_the = document_the;
+      ret.doc_has      = doc_has;
+    }
+    return ret;
+  } // ← closed: abstract doc source
+}
diff --git a/src/sisudoc/meta/metadoc_from_src_functions.d b/src/sisudoc/meta/metadoc_from_src_functions.d
new file mode 100644
index 0000000..29e675c
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_from_src_functions.d
@@ -0,0 +1,5216 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+// document abstraction:
+// abstraction of sisu markup for downstream processing
+// metadoc_from_src.d
+module sisudoc.meta.metadoc_from_src_functions;
+@safe:
+template docAbstractionFunctions() {
+  // ↓ abstraction imports
+  import
+    std.algorithm,
+    std.container,
+    std.file,
+    std.json,
+    std.path;
+  import
+    sisudoc.meta,
+    sisudoc.meta.defaults,
+    sisudoc.meta.rgx,
+    sisudoc.meta.metadoc_object_setter,
+    sisudoc.meta.rgx;
+  // ↓ abstraction mixins
+  mixin ObjectSetter;
+  mixin InternalMarkup;
+  mixin spineRgxIn;
+  static auto rgx = RgxI();
+  // initialize
+  string[string] an_object, processing, object_notes;
+  string an_object_key;
+  string[] anchor_tags;
+  string anchor_tag;
+  string anchor_tag_;
+  string[string] tag_in_seg;
+  string lev_anchor_tag;
+  string[string][string] tag_assoc;
+  string[] lv0to3_tags;
+  // enum
+  // biblio variables
+  string biblio_tag_name, biblio_tag_entry, st;
+  string[] biblio_arr_json;
+  string biblio_entry_str_json;
+  JSONValue[] bib_arr_json;
+  int bib_entry;
+  // counters
+  int cntr, previous_count, previous_length;
+  bool reset_note_numbers = true;
+  int[string] line_occur;
+  int html_segnames_ptr = 0;
+  int html_segnames_ptr_cntr = 0;
+  int verse_line, heading_ptr;
+  // paragraph attributes
+  int[string] indent;
+  bool bullet = true;
+  string content_non_header = "8";
+  // ocn
+  OCNset obj_cite_digits;
+  int obj_cite_digit_, obj_cite_digit_off, obj_cite_digit_bkidx, obj_cite_digit_type;
+  int[] dom_structure_markedup_tags_status         = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+  int[] dom_structure_markedup_tags_status_buffer  = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+  int[] dom_structure_collapsed_tags_status        = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+  int[] dom_structure_collapsed_tags_status_buffer = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+  static auto obj_im = ObjInlineMarkup();
+  static auto obj_att = ObjAttributes();
+  auto object_citation_number = OCNemitter();
+  auto node_construct = NodeStructureMetadata();
+  // ↓ abstraction function emitters
+  // ↓ - emitters
+  pure struct OCNemitter {
+    int ocn_digit, ocn_object_number, ocn_on_, ocn_off_, ocn_bkidx, ocn_bkidx_;
+    string object_identifier;
+    bool ocn_is_off;
+    auto ocn_emitter(int ocn_status_flag) {
+      OCNset ocn;
+      assert(ocn_status_flag <= eN.ocn.reset);
+      ocn_object_number              = ocn_bkidx = 0;
+      object_identifier              = "";
+      ocn_is_off                     = false;
+      switch(ocn_status_flag) with (eN.ocn) {
+      case reset:
+        ocn_digit                    = ocn_on_             = 1;
+        object_identifier            = "1";
+        ocn_is_off                   = false;
+        ocn_off_                     = ocn_bkidx_ = 0;
+        break;
+      case on:
+        ocn_digit                    = ocn_object_number   = ++ocn_on_;
+        object_identifier            = ocn_digit.to!string;
+        ocn_is_off                   = false;
+        break;
+      case off:
+        ocn_digit                    = 0;
+        ocn_off_                     = ++ocn_off_;
+        object_identifier            = "a" ~ ocn_off_.to!string;
+        ocn_is_off                   = true;
+        break;
+      case bkidx:
+        ocn_bkidx                    = ++ocn_bkidx_;
+        break;
+      case closing: // unused?
+        break;
+      default:
+        ocn_digit                    = 0;
+      }
+      assert(ocn_digit >= 0);
+      ocn.digit                      = ocn_digit;
+      ocn.object_number              = ocn_object_number; // difference between .object_number and .digit?
+      ocn.identifier                 = object_identifier;
+      ocn.off                        = ocn_is_off;
+      ocn.bkidx                      = ocn_bkidx;
+      ocn.type                       = ocn_status_flag;
+      return ocn;
+    }
+    invariant() {
+    }
+  }
+  pure ObjGenericComposite obj_heading_ancestors()(
+    ObjGenericComposite  obj,
+    string[]             lv_ancestors_txt,
+  ) {
+    switch (obj.metainfo.heading_lev_markup) {
+    case 0:
+      lv_ancestors_txt[0] = obj.text.to!string;
+      foreach(k; 1..8) { lv_ancestors_txt[k] = ""; }
+      goto default;
+    case 1:
+      lv_ancestors_txt[1] = obj.text.to!string;
+      foreach(k; 2..8) { lv_ancestors_txt[k] = ""; }
+      goto default;
+    case 2:
+      lv_ancestors_txt[2] = obj.text.to!string;
+      foreach(k; 3..8) { lv_ancestors_txt[k] = ""; }
+      goto default;
+    case 3:
+      lv_ancestors_txt[3] = obj.text.to!string;
+      foreach(k; 4..8) { lv_ancestors_txt[k] = ""; }
+      goto default;
+    case 4:
+      lv_ancestors_txt[4] = obj.text.to!string;
+      foreach(k; 5..8) { lv_ancestors_txt[k] = ""; }
+      goto default;
+    case 5:
+      lv_ancestors_txt[5] = obj.text.to!string;
+      foreach(k; 6..8) { lv_ancestors_txt[k] = ""; }
+      goto default;
+    case 6:
+      lv_ancestors_txt[6] = obj.text.to!string;
+      lv_ancestors_txt[7] = "";
+      goto default;
+    case 7:
+      lv_ancestors_txt[7] = obj.text.to!string;
+      goto default;
+    default:
+      obj.tags.heading_ancestors_text = lv_ancestors_txt.dup;
+    }
+    return obj;
+  }
+  static  OCNset ocn_emit(int ocn_status_flag) {
+    return object_citation_number.ocn_emitter(ocn_status_flag);
+  }
+  static uint[string] _check_ocn_status_()(
+    char[]       line,
+    uint[string] pith,
+  ) {
+    static auto rgx = RgxI();
+    if (!(line.empty)) {
+      if (pith["no_ocn_multiple_objects"] == eN.bi.off) {
+        // not multi-line object, check whether object_number is on or turned off
+        if (line.matchFirst(rgx.object_number_block_marks)) {                      // switch off object_number
+          if (line.matchFirst(rgx.object_number_off_block)) {
+            pith["no_ocn_multiple_objects"]             = eN.bi.on;
+            pith["ocn"]                                 = eN.ocn.off;
+            debug(ocnoff) { writeln(line); }
+          }
+          if (line.matchFirst(rgx.object_number_off_block_dummy_heading)) {
+            pith["no_ocn_multiple_objects"]             = eN.bi.on;
+            pith["dummy_heading_multiple_objects"]      = eN.bi.on;
+            pith["ocn"]                                 = eN.ocn.off;
+            debug(ocnoff) { writeln(line); }
+          }
+        } else if (pith["no_ocn_multiple_objects"] == eN.bi.off) {
+            pith["dummy_heading_status"]                = eN.bi.off;
+            if (pith["dummy_heading_multiple_objects"]) {
+              pith["dummy_heading_status"]              = eN.bi.on;
+            }
+            if (line.matchFirst(rgx.object_number_off)) {
+              pith["ocn"]                               = eN.ocn.off;
+            } else if (line.matchFirst(rgx.object_number_off_dummy_heading)) {
+              pith["ocn"]                               = eN.ocn.off;
+              pith["dummy_heading_status"]              = eN.bi.on;
+            } else {
+              pith["ocn"]                               = eN.ocn.on;
+              pith["dummy_heading_status"]              = eN.bi.off;
+            }
+          } else {
+            pith["ocn"] = pith["no_ocn_multiple_objects"];
+          }
+      } else if (pith["no_ocn_multiple_objects"] == eN.bi.on) {
+        if (line.matchFirst(rgx.object_number_off_block_close)) {
+          pith["no_ocn_multiple_objects"]               = eN.bi.off;
+          pith["ocn"]                                   = eN.ocn.on;
+          pith["dummy_heading_status"]                  = eN.bi.off;
+          debug(ocnoff) { writeln(line); }
+        }
+      }
+    }
+    return pith;
+  }
+  // ↑ - emitters ↑
+  // ↓ abstraction functions
+  // ↓ - reset text by line
+  @system ST_txt_by_line_common_reset txt_by_line_common_reset_()(
+    int[string]     line_occur,
+    string[string]  an_object,
+    uint[string]    pith,
+  ) {
+    line_occur["heading"]                               = eN.bi.off;
+    line_occur["para"]                                  = eN.bi.off;
+    pith["txt_is"]                                      = eN.txt_is.off;
+    an_object                                           = an_object.object_reset;
+    ST_txt_by_line_common_reset ret;
+    {
+      ret.line_occur  = line_occur;
+      ret.this_object = an_object;
+      ret.pith        = pith;
+    }
+    return ret;
+  }
+  // ↓ - reset object
+  static string[string] object_reset()(string[string] an_object) {
+    an_object.remove("body_nugget");
+    an_object.remove("substantive");
+    an_object.remove("is");
+    an_object.remove("attrib");
+    an_object.remove("bookindex_nugget");
+    return an_object;
+  }
+  // ↑ - resets
+  // ↓ - markup text by line
+  char[] font_faces_line()(char[] textline) {
+    static auto rgx = RgxI();
+    static auto mkup = InlineMarkup();
+    if (textline.match(rgx.inline_faces_line)) {
+      textline = textline
+        .replaceFirst(rgx.inline_emphasis_line,
+          format(q"┃%s%s%s%s%s%s%s┃",
+            mkup.ff_i, mkup.emph, mkup.ff_o, "$1", mkup.ff_c, mkup.emph, "$2"))
+        .replaceFirst(rgx.inline_bold_line,
+          format(q"┃%s%s%s%s%s%s%s┃",
+            mkup.ff_i, mkup.bold, mkup.ff_o, "$1", mkup.ff_c, mkup.bold, "$2"))
+        .replaceFirst(rgx.inline_underscore_line,
+          format(q"┃%s%s%s%s%s%s%s┃",
+            mkup.ff_i, mkup.underscore, mkup.ff_o, "$1", mkup.ff_c, mkup.underscore, "$2"))
+        .replaceFirst(rgx.inline_italics_line,
+          format(q"┃%s%s%s%s%s%s%s┃",
+            mkup.ff_i, mkup.italic,  mkup.ff_o, "$1", mkup.ff_c, mkup.italic, "$2"));
+    }
+    return textline;
+  }
+  auto inline_markup_faces(L)(L line) {
+    static auto rgx = RgxI();
+    static auto mkup = InlineMarkup();
+    line = replaceAll!(m => mkup.quote_o ~ m[1] ~ mkup.quote_c)(line, rgx.within_quotes);
+    line = replaceAll!(m => mkup.ff_i ~ mkup.mono ~ mkup.ff_o ~ m["text"] ~ mkup.ff_c ~ mkup.mono)(line, rgx.inline_mark_mono);
+    line = replaceAll!(m => mkup.ff_i ~ mkup.cite ~ mkup.ff_o ~ m["text"] ~ mkup.ff_c ~ mkup.cite)(line, rgx.inline_mark_cite);
+    foreach (regx; [rgx.inline_mark_emphasis, rgx.inline_mark_bold, rgx.inline_mark_underscore, rgx.inline_mark_italics, rgx.inline_mark_superscript, rgx.inline_mark_subscript, rgx.inline_mark_strike, rgx.inline_mark_insert]) {
+      line = replaceAll!(m => mkup.ff_i ~ m["mark"] ~ mkup.ff_o ~ m["text"] ~ mkup.ff_c ~ m["mark"])(line, regx);
+    }
+    return line;
+  }
+  static string links_and_images()(string obj_txt) {
+    static auto rgx = RgxI();
+    static auto mkup = InlineMarkup();
+    if (obj_txt.match(rgx.smid_inline_url_generic)) {
+      if (
+        obj_txt.match(rgx.smid_inline_link_endnote_url_helper)
+        || obj_txt.match(rgx.smid_inline_link_endnote_url_helper_punctuated)
+      ) {
+        obj_txt = replaceAll!(m => format("%s%s%s%s%s%s%s %s%s%s%s%s%s %s%s",
+          mkup.lnk_o, m["content"].strip, mkup.lnk_c,
+          mkup.url_o, m["link"], mkup.url_c,
+          mkup.en_a_o,
+          mkup.lnk_o, m["link"].strip, mkup.lnk_c,
+          mkup.url_o, m["link"], mkup.url_c,
+          mkup.en_a_c,
+          m[3]
+        ))(obj_txt, rgx.smid_inline_link_endnote_url_helper_punctuated);
+        obj_txt = replaceAll!(m => format("%s%s%s%s%s%s%s %s%s%s%s%s%s %s",
+          mkup.lnk_o, m["content"].strip, mkup.lnk_c,
+          mkup.url_o, m["link"], mkup.url_c,
+          mkup.en_a_o,
+          mkup.lnk_o, m["link"].strip, mkup.lnk_c,
+          mkup.url_o, m["link"], mkup.url_c,
+          mkup.en_a_c
+        ))(obj_txt, rgx.smid_inline_link_endnote_url_helper);
+    } else {
+        obj_txt = replaceAll!(m => format("%s%s%s%s%s%s%s",
+          m["pre"],
+          mkup.lnk_o, m["content"].strip, mkup.lnk_c,
+          mkup.url_o, m["link"], mkup.url_c
+        ))(obj_txt, rgx.smid_inline_link_markup_regular);
+      }
+        obj_txt = replaceAll!(m => format("%s%s%s%s%s%s%s",
+          m["pre"],
+          mkup.lnk_o, m["link"].strip, mkup.lnk_c,
+          mkup.url_o, m["link"], mkup.url_c
+        ))(obj_txt, rgx.smid_inline_link_naked_url); //
+    }
+    return obj_txt;
+  }
+  char[] _doc_header_and_make_substitutions_(CMM)(
+    char[]  line,
+    CMM     conf_make_meta,
+  ) {
+    enum Substitute { match, markup, }
+    if (conf_make_meta.make.substitute) {
+      foreach(substitution_pair; conf_make_meta.make.substitute) {
+        line = line.replaceAll(
+          regex("\b" ~ substitution_pair[Substitute.match]),
+          substitution_pair[Substitute.markup]
+        );
+      }
+    }
+    return line;
+  }
+  char[] _doc_header_and_make_substitutions_fontface_(CMM)(
+    char[]  line,
+    CMM     conf_make_meta,
+  ) {
+    enum Substitute { match, markup, }
+    if ( conf_make_meta.make.bold) {
+      line = line.replaceAll(
+        regex("\b" ~ conf_make_meta.make.bold[Substitute.match]),
+        conf_make_meta.make.bold[Substitute.markup]
+      );
+    }
+    if (conf_make_meta.make.emphasis) {
+      line = line.replaceAll(
+        regex("\b" ~ conf_make_meta.make.emphasis[Substitute.match]),
+        conf_make_meta.make.emphasis[Substitute.markup]
+      );
+    }
+    if (conf_make_meta.make.italics) {
+      line = line.replaceAll(
+        regex("\b" ~ conf_make_meta.make.italics[Substitute.match]),
+        conf_make_meta.make.italics[Substitute.markup]
+      );
+    }
+    return line;
+  }
+  // ↑ - markup by line
+  // ↓ - text by line (blocks etc.)
+  ST_txt_by_line_block_start txt_by_line_block_start()(
+    char[]         line,
+    uint[string]   pith,
+    uint[string]   dochas,
+    string[string] object_number_poem
+  ) {
+    static auto rgx = RgxI();
+    if (auto m = line.matchFirst(rgx.block_curly_code_open)) {
+      dochas["codeblock"]++;
+      an_object["lang"]               = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["syntax"]             = (m["syntax"]) ? m["syntax"].to!string : "";
+      debug(codecurly) { writefln( "* [code curly] %s", line); }                              // code (curly) open
+      pith["block_is"]                = eN.blk_is.code;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.curly;
+    } else if (auto m = line.matchFirst(rgx.block_curly_poem_open)) {
+      dochas["poem"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["lang"]               = (m["lang"]) ? m["lang"].to!string : "";
+      debug(poem) { writefln( "* [poem curly] %s", line); }                              // poem (curly) open
+      object_number_poem["start"]     = obj_cite_digits.object_number.to!string;
+      pith["block_is"]                = eN.blk_is.poem;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.curly;
+      pith["verse_new"]               = eN.bi.on;
+    } else if (auto m = line.matchFirst(rgx.block_curly_group_open)) {
+      dochas["group"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["lang"]               = (m["lang"]) ? m["lang"].to!string : "";
+      debug(group) { writefln( "* [group curly] %s", line); }                             // group (curly) open
+      pith["block_is"]                = eN.blk_is.group;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.curly;
+    } else if (auto m = line.matchFirst(rgx.block_curly_block_open)) {
+      dochas["block"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["lang"]               = (m["lang"]) ? m["lang"].to!string : "";
+      debug(block) { writefln( "* [block curly] %s", line); }
+      pith["block_is"]                = eN.blk_is.block;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.curly;
+    } else if (auto m = line.matchFirst(rgx.block_curly_quote_open)) {
+      dochas["quote"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = m["attrib"].to!string;
+      an_object["lang"]               = m["lang"].to!string;
+      debug(quote) { writefln( "* [quote curly] %s", line); }
+      pith["block_is"]                = eN.blk_is.quote;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.curly;
+    } else if (auto m = line.matchFirst(rgx.block_curly_table_open)) {           // curly table open
+      debug(table) { writefln( "* [table curly] %s", line); }
+      dochas["table"] ++;
+      an_object["table_head"]         = m["attrib"].to!string;
+      an_object["block_type"]         = "curly";
+      pith["block_is"]                = eN.blk_is.table;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.curly;
+    } else if (auto m = line.matchFirst(rgx.block_curly_table_special_markup)) { // table: special table block markup syntax!
+      dochas["table"]++;
+      an_object["table_head"]         = m["attrib"].to!string;
+      an_object["block_type"]         = "special";
+      pith["block_is"]                = eN.blk_is.table;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.curly_special;
+    } else if (auto m = line.matchFirst(rgx.block_tic_code_open)) {
+      dochas["codeblock"]++;
+      an_object["lang"]               = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["syntax"]             = (m["syntax"]) ? m["syntax"].to!string : "";
+      debug(codetic) { writefln( "* [code tic] %s", line); }
+      pith["block_is"]                = eN.blk_is.code;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.tic;
+    } else if (auto m = line.matchFirst(rgx.block_tic_poem_open)) {
+      dochas["poem"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["lang"]               = (m["lang"]) ? m["lang"].to!string : "";
+      debug(poem) { writefln( "* [poem tic] %s", line); }
+      object_number_poem["start"]     = obj_cite_digits.object_number.to!string;
+      pith["block_is"]                = eN.blk_is.poem;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.tic;
+      pith["verse_new"]               = eN.bi.on;
+    } else if (auto m = line.matchFirst(rgx.block_tic_group_open)) {
+      dochas["group"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["lang"]               = (m["lang"]) ? m["lang"].to!string : "";
+      debug(group) { writefln( "* [group tic] %s", line); }
+      pith["block_is"]                = eN.blk_is.group;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.tic;
+    } else if (auto m = line.matchFirst(rgx.block_tic_block_open)) {
+      dochas["block"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = (m["attrib"]) ? m["attrib"].to!string : "";
+      an_object["lang"]               = (m["lang"]) ? m["lang"].to!string : "";
+      debug(block) { writefln( "* [block tic] %s", line); }
+      pith["block_is"]                = eN.blk_is.block;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.tic;
+    } else if (auto m = line.matchFirst(rgx.block_tic_quote_open)) {
+      dochas["quote"]++;
+      an_object["syntax"]             = "";
+      an_object["attrib"]             = m["attrib"].to!string;
+      an_object["lang"]               = m["lang"].to!string;
+      debug(quote) { writefln( "* [quote tic] %s", line);                        // quote (tic) open
+      }
+      pith["block_is"]                = eN.blk_is.quote;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.tic;
+    } else if (auto m = line.matchFirst(rgx.block_tic_table_open)) {             // tic table open
+      debug(table) { writefln( "* [table tic] %s", line); }
+      dochas["table"] ++;
+      an_object["table_head"]         = m["attrib"].to!string;
+      an_object["block_type"]         = "tic";
+      pith["block_is"]                = eN.blk_is.table;
+      pith["block_state"]             = eN.blk_state.on;
+      pith["block_delim"]             = eN.blk_delim.tic;
+    }
+    ST_txt_by_line_block_start ret;
+    {
+      ret.pith               = pith;
+      ret.dochas             = dochas;
+      ret.object_number_poem = object_number_poem;
+    }
+    return ret;
+  }
+  ST_txt_by_line_block_generic txt_by_line_block_group()(
+    char[]          line,
+    string[string]  an_object,
+    uint[string]    pith,
+  ) {
+    static auto rgx = RgxI();
+    if (pith["block_is"] == eN.blk_is.group) {
+      if (pith["block_delim"] == eN.blk_delim.curly) {
+        if (line.matchFirst(rgx.block_curly_group_close)) {
+          debug(group) { writeln(line); }
+          an_object[an_object_key]    = an_object[an_object_key].stripRight;
+          pith["block_is"]            = eN.blk_is.group;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(group) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      } else if (pith["block_delim"] == eN.blk_delim.tic) {
+        if (line.matchFirst(rgx.block_tic_close)) {
+          debug(group) { writeln(line); }
+          an_object[an_object_key]    = an_object[an_object_key].stripRight;
+          pith["block_is"]            = eN.blk_is.group;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(group) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      }
+    }
+    ST_txt_by_line_block_generic ret;
+    {
+      ret.pith        = pith;
+      ret.this_object = an_object;
+    }
+    return ret;
+  }
+  ST_txt_by_line_block_generic txt_by_line_block_block()(
+    char[]          line,
+    string[string]  an_object,
+    uint[string]    pith,
+  ) {
+    static auto rgx = RgxI();
+    if (pith["block_is"] == eN.blk_is.block) {
+      if (pith["block_delim"] == eN.blk_delim.curly) {
+        if (line.matchFirst(rgx.block_curly_block_close)) {
+          debug(block) { writeln(line); }
+          an_object[an_object_key]    = an_object[an_object_key].stripRight;
+          pith["block_is"]            = eN.blk_is.block;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(block) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      } else if (pith["block_delim"] == eN.blk_delim.tic) {
+        if (line.matchFirst(rgx.block_tic_close)) {
+          debug(block) { writeln(line); }
+          an_object[an_object_key]    = an_object[an_object_key].stripRight;
+          pith["block_is"]            = eN.blk_is.block;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(block) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      }
+    }
+    ST_txt_by_line_block_generic ret;
+    {
+      ret.pith        = pith;
+      ret.this_object = an_object;
+    }
+    return ret;
+  }
+  ST_txt_by_line_block_poem txt_by_line_block_poem(CMM)(
+    char[]          line,
+    string[string]  an_object,
+    uint[string]    pith,
+    int             cntr,
+    string[string]  object_number_poem,
+    CMM             conf_make_meta,
+    string[string]  tag_in_seg,
+  ) {
+    static auto rgx = RgxI();
+    if (pith["block_is"] == eN.blk_is.poem) {
+      if (pith["block_delim"] == eN.blk_delim.curly) {
+        if (line.matchFirst(rgx.block_curly_poem_close)) {
+          if (an_object_key in an_object
+          || processing.length > 0) {
+            an_object[an_object_key]        = "";
+            debug(poem) { writefln( "* [poem curly] %s", line); }
+            if (processing.length > 0) {
+              an_object[an_object_key]      = processing["verse"];
+            }
+            debug(poem) {
+              writeln(__LINE__);
+              writefln( "* %s %s", obj_cite_digits.object_number, line);
+            }
+            if (an_object.length > 0) {
+              debug(poem) { writeln( obj_cite_digits.object_number, an_object[an_object_key]); }
+              an_object["is"]                                   = "verse";
+              ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+                = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+              an_object["substantive"]                          = substantive_obj_misc_struct.obj_txt;
+              anchor_tag                                        = substantive_obj_misc_struct.anchor_tag;
+              comp_obj_                                         = set_object_generic("body", "body", "block", "verse", an_object["substantive"], obj_cite_digits.object_number);
+              comp_obj_.metainfo.identifier                     = obj_cite_digits.identifier;
+              comp_obj_.metainfo.object_number_off              = obj_cite_digits.off;
+              comp_obj_.metainfo.o_n_book_index                 = obj_cite_digits.bkidx;
+              comp_obj_.metainfo.object_number_type             = obj_cite_digits.type;
+              comp_obj_.tags.html_segment_anchor_tag_is         = tag_in_seg["seg_lv4"];
+              comp_obj_.tags.epub_segment_anchor_tag_is         = tag_in_seg["seg_lv1to4"];
+              comp_obj_.has.inline_notes_reg                    = substantive_obj_misc_struct.has_notes_reg;
+              comp_obj_.has.inline_notes_star                   = substantive_obj_misc_struct.has_notes_star;
+              comp_obj_.has.inline_links                        = substantive_obj_misc_struct.has_links;
+              the_document_body_section                         ~= comp_obj_;
+              tag_assoc                                         = an_object.inline_para_link_anchor(tag_in_seg, tag_assoc);
+            }
+            object_reset(an_object);
+            processing.remove("verse");
+            ++cntr;
+          }
+          object_number_poem["end"]   = obj_cite_digits.object_number.to!string;
+          pith["block_is"]            = eN.blk_is.poem;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          processing["verse"] ~= line ~= "\n";
+          if (pith["verse_new"] == eN.bi.on) {
+            obj_cite_digits = ocn_emit(pith["ocn"]);
+            pith["verse_new"]         = eN.bi.off;
+          } else if (line.matchFirst(rgx.newline_eol_delimiter_only)) {
+            processing["verse"]       = processing["verse"].stripRight;
+            verse_line                = eN.bi.off;
+            pith["verse_new"]         = eN.bi.on;
+          }
+          if (pith["verse_new"] == eN.bi.on) {
+            verse_line = 1;
+            an_object[an_object_key]  = processing["verse"];
+            debug(poem) { writefln(
+                "* %s curly\n%s",
+                obj_cite_digits.object_number,
+                an_object[an_object_key]
+              );
+            }
+            processing.remove("verse");
+            an_object["is"]                                     = "verse";
+            auto comp_obj_location = node_construct.node_location_emitter(
+              content_non_header,
+              tag_in_seg,
+              lev_anchor_tag,
+              tag_assoc,
+              obj_cite_digits,
+              cntr,
+              heading_ptr-1,
+              an_object["is"]
+            );
+            ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+              = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+            an_object["substantive"]                            = substantive_obj_misc_struct.obj_txt;
+            anchor_tag                                          = substantive_obj_misc_struct.anchor_tag;
+            comp_obj_                                           = set_object_generic("body", "body", "block", "verse", an_object["substantive"], obj_cite_digits.object_number);
+            comp_obj_.metainfo.identifier                       = obj_cite_digits.identifier;
+            comp_obj_.metainfo.object_number_off                = obj_cite_digits.off;
+            comp_obj_.metainfo.o_n_book_index                   = obj_cite_digits.bkidx;
+            comp_obj_.metainfo.object_number_type               = obj_cite_digits.type;
+            comp_obj_.tags.html_segment_anchor_tag_is           = tag_in_seg["seg_lv4"];
+            comp_obj_.tags.epub_segment_anchor_tag_is           = tag_in_seg["seg_lv1to4"];
+            comp_obj_.has.inline_notes_reg                      = substantive_obj_misc_struct.has_notes_reg;
+            comp_obj_.has.inline_notes_star                     = substantive_obj_misc_struct.has_notes_star;
+            comp_obj_.has.inline_links                          = substantive_obj_misc_struct.has_links;
+            the_document_body_section                           ~= comp_obj_;
+            tag_assoc                                           = an_object.inline_para_link_anchor(tag_in_seg, tag_assoc);
+            object_reset(an_object);
+            processing.remove("verse");
+            ++cntr;
+          }
+        }
+      } else if (pith["block_delim"] == eN.blk_delim.tic) {
+        if (auto m = line.matchFirst(rgx.block_tic_close)) {
+          an_object[an_object_key] = "verse";
+          debug(poem) { writefln( "* [poem tic] %s", line); }
+          if (processing.length > 0) {
+            an_object[an_object_key]  = processing["verse"];
+          }
+          if (an_object.length > 0) {
+            debug(poem) { writeln(__LINE__); writeln(obj_cite_digits.object_number, line); }
+            processing.remove("verse");
+            an_object["is"]                                     = "verse";
+            ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+              = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+            an_object["substantive"]                            = substantive_obj_misc_struct.obj_txt;
+            anchor_tag                                          = substantive_obj_misc_struct.anchor_tag;
+            comp_obj_                                           = set_object_generic("body", "body", "block", "verse", an_object["substantive"], obj_cite_digits.object_number);
+            comp_obj_.metainfo.identifier                       = obj_cite_digits.identifier;
+            comp_obj_.metainfo.object_number_off                = obj_cite_digits.off;
+            comp_obj_.metainfo.o_n_book_index                   = obj_cite_digits.bkidx;
+            comp_obj_.metainfo.object_number_type               = obj_cite_digits.type;
+            comp_obj_.tags.html_segment_anchor_tag_is           = tag_in_seg["seg_lv4"];
+            comp_obj_.tags.epub_segment_anchor_tag_is           = tag_in_seg["seg_lv1to4"];
+            comp_obj_.has.inline_notes_reg                      = substantive_obj_misc_struct.has_notes_reg;
+            comp_obj_.has.inline_notes_star                     = substantive_obj_misc_struct.has_notes_star;
+            comp_obj_.has.inline_links                          = substantive_obj_misc_struct.has_links;
+            the_document_body_section                           ~= comp_obj_;
+            tag_assoc                                           = an_object.inline_para_link_anchor(tag_in_seg, tag_assoc);
+            object_number_poem["end"]                           = obj_cite_digits.object_number.to!string;
+            object_reset(an_object);
+            processing.remove("verse");
+            ++cntr;
+          }
+          pith["block_is"]            = eN.blk_is.poem;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          processing["verse"]         ~= line ~= "\n";
+          if (pith["verse_new"] == eN.bi.on) {
+            obj_cite_digits           = ocn_emit(pith["ocn"]);
+            pith["verse_new"]         = eN.bi.off;
+          } else if (line.matchFirst(rgx.newline_eol_delimiter_only)) {
+            processing["verse"]       = processing["verse"].stripRight;
+            pith["verse_new"]         = eN.bi.on;
+            verse_line                = eN.bi.off;
+          }
+          if (pith["verse_new"] == eN.bi.on) {
+            verse_line = 1;
+            an_object[an_object_key]  = processing["verse"];
+            debug(poem) { writefln(
+                "* %s tic\n%s",
+                obj_cite_digits.object_number,
+                an_object[an_object_key]
+              );
+            }
+            processing.remove("verse");
+            an_object["is"]                                     = "verse";
+            auto comp_obj_location
+              = node_construct.node_location_emitter(
+                content_non_header,
+                tag_in_seg,
+                lev_anchor_tag,
+                tag_assoc,
+                obj_cite_digits,
+                cntr,
+                heading_ptr-1,
+                an_object["is"]
+              );
+            ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+              = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+            an_object["substantive"]                            = substantive_obj_misc_struct.obj_txt;
+            anchor_tag                                          = substantive_obj_misc_struct.anchor_tag;
+            comp_obj_                                           = set_object_generic("body", "body", "block", "verse", an_object["substantive"], obj_cite_digits.object_number);
+            comp_obj_.metainfo.identifier                       = obj_cite_digits.identifier;
+            comp_obj_.metainfo.object_number_off                = obj_cite_digits.off;
+            comp_obj_.metainfo.o_n_book_index                   = obj_cite_digits.bkidx;
+            comp_obj_.metainfo.object_number_type               = obj_cite_digits.type;
+            comp_obj_.tags.html_segment_anchor_tag_is           = tag_in_seg["seg_lv4"];
+            comp_obj_.tags.epub_segment_anchor_tag_is           = tag_in_seg["seg_lv1to4"];
+            comp_obj_.has.inline_notes_reg                      = substantive_obj_misc_struct.has_notes_reg;
+            comp_obj_.has.inline_notes_star                     = substantive_obj_misc_struct.has_notes_star;
+            comp_obj_.has.inline_links                          = substantive_obj_misc_struct.has_links;
+            the_document_body_section                           ~= comp_obj_;
+            tag_assoc                                           = an_object.inline_para_link_anchor(tag_in_seg, tag_assoc);
+            object_reset(an_object);
+            processing.remove("verse");
+            ++cntr;
+          }
+        }
+      }
+    }
+    ST_txt_by_line_block_poem ret;
+    {
+      ret.cntr        = cntr;
+      ret.pith        = pith;
+      ret.this_object = an_object;
+    }
+    return ret;
+  }
+  ST_txt_by_line_block_generic txt_by_line_block_code()(
+    char[]          line,
+    string[string]  an_object,
+    uint[string]    pith,
+  ) {
+    static auto rgx = RgxI();
+    if ( pith["block_is"] == eN.blk_is.code) {
+      if (pith["block_delim"] == eN.blk_delim.curly) {
+        if (line.matchFirst(rgx.block_curly_code_close)) {
+          debug(codecurly) { writeln(line); }
+          an_object[an_object_key] = an_object[an_object_key]
+            .replaceFirst(rgx.newline_eol_delimiter_only, "")
+            .stripRight;
+          pith["block_is"]            = eN.blk_is.code;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(codecurly) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      } else if (pith["block_delim"] == eN.blk_delim.tic) {
+        if (line.matchFirst(rgx.block_tic_close)) {
+          debug(codetic) { writeln(line); }
+          an_object[an_object_key] = an_object[an_object_key]
+            .replaceFirst(rgx.newline_eol_delimiter_only, "")
+            .stripRight;
+          pith["block_is"]            = eN.blk_is.code;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(codetic) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      }
+    }
+    ST_txt_by_line_block_generic ret;
+    {
+      ret.pith        = pith;
+      ret.this_object = an_object;
+    }
+    return ret;
+  }
+  @system auto txt_by_line_block_table(CMM)(
+    char[]          line,
+    string[string]  an_object,
+    uint[string]    pith,
+    CMM             conf_make_meta,
+  ) {
+    static auto rgx = RgxI();
+    if (pith["block_is"] == eN.blk_is.table) {
+      if (pith["block_delim"] == eN.blk_delim.curly) {
+        if (line.matchFirst(rgx.block_curly_table_close)) {
+          debug(table) { writeln(line); }
+          pith["block_is"]            = eN.blk_is.table;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(table) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      } else if (pith["block_delim"] == eN.blk_delim.curly_special) {
+        if (line.empty) {
+          pith["block_is"]            = eN.blk_is.table;
+          pith["block_state"]         = eN.blk_state.off;
+          pith["block_delim"]         = eN.blk_delim.off;
+          {
+            auto _get = line.flow_table_closed_make_special_notation_table_(
+              an_object,
+              the_document_body_section,
+              obj_cite_digits,
+              comp_obj_,
+              cntr,
+              pith,
+              conf_make_meta,
+            );
+            {
+              an_object                 = _get.this_object;
+              the_document_body_section = _get.the_document_body_section;
+              obj_cite_digits           = _get.obj_cite_digits;
+              comp_obj_                 = _get.comp_obj_;
+              cntr                      = _get.cntr;
+              pith                      = _get.pith;
+            }
+          }
+        } else {
+          debug(table) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      } else if (pith["block_delim"] == eN.blk_delim.tic) {
+        if (line.matchFirst(rgx.block_tic_close)) {
+          debug(table) { writeln(line); }
+          pith["block_is"]            = eN.blk_is.table;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(table) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      }
+    }
+    struct ST_txt_by_line_block_table {
+      CMM             conf_make_meta;
+      uint[string]    pith;
+      string[string]  this_object;
+    }
+    ST_txt_by_line_block_table ret;
+    {
+      ret.conf_make_meta = conf_make_meta,
+      ret.pith           = pith;
+      ret.this_object    = an_object;
+    }
+    return ret;
+  }
+  ST_txt_by_line_block_generic txt_by_line_block_quote()(
+    char[]          line,
+    string[string]  an_object,
+    uint[string]    pith,
+  ) {
+    static auto rgx = RgxI();
+    if (pith["block_is"] == eN.blk_is.quote){
+      if (pith["block_delim"] == eN.blk_delim.curly) {
+        if (line.matchFirst(rgx.block_curly_quote_close)) {
+          debug(quote) { writeln(line); }
+          an_object[an_object_key]    = an_object[an_object_key].stripRight;
+          pith["block_is"]            = eN.blk_is.quote;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(quote) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      } else if (pith["block_delim"] == eN.blk_delim.tic) {
+        if (line.matchFirst(rgx.block_tic_close)) {
+          debug(quote) { writeln(line); }
+          an_object[an_object_key]    = an_object[an_object_key].stripRight;
+          pith["block_is"]            = eN.blk_is.quote;
+          pith["block_state"]         = eN.blk_state.closing;
+          pith["block_delim"]         = eN.blk_delim.off;
+        } else {
+          debug(quote) { writeln(line); }
+          an_object[an_object_key] ~= line ~= "\n";
+        }
+      }
+    }
+    ST_txt_by_line_block_generic ret;
+    {
+      ret.pith        = pith;
+      ret.this_object = an_object;
+    }
+    return ret;
+  }
+  @system ST_txt_by_line_block_biblio txt_by_line_block_biblio(
+    char[]                  line,
+    uint[string] pith,
+    int          bib_entry,
+    string       biblio_entry_str_json,
+    string[]     biblio_arr_json,
+  ) {
+    mixin spineBiblio;
+    auto jsn = BibJsnStr();
+    static auto rgx = RgxI();
+    string biblio_tag_map()(string abr) {
+      auto btm = [
+        "au"        : "author_raw",
+        "ed"        : "editor_raw",
+        "ti"        : "fulltitle",
+        "lng"       : "language",
+        "jo"        : "journal",
+        "vol"       : "volume",
+        "edn"       : "edition",
+        "yr"        : "year",
+        "pl"        : "place",
+        "pb"        : "publisher",
+        "pub"       : "publisher",
+        "pg"        : "pages",
+        "pgs"       : "pages",
+        "sn"        : "short_name"
+      ];
+      return btm[abr];
+    }
+    if (line.matchFirst(rgx.heading_biblio)) {
+      pith["section"] = eN.sect.bibliography;
+    }
+    if (line.empty) {
+      debug {
+        debug(biblioblock) { writeln("---"); }
+        debug(biblioblockinclude) { writeln(biblio_entry_str_json.length); }
+      }
+      if ((bib_entry == eN.bi.off)
+      && (biblio_entry_str_json.empty)) {
+        bib_entry = eN.bi.on;
+        biblio_entry_str_json = jsn.biblio_entry_tags_jsonstr;
+      } else if (!(biblio_entry_str_json.empty)) {
+        bib_entry = eN.bi.off;
+        if (!(biblio_entry_str_json == jsn.biblio_entry_tags_jsonstr)) {
+          auto biblio_entry = parseJSON(biblio_entry_str_json);
+          if (biblio_entry["fulltitle"].str.empty) {
+            writeln("check problem entry (Title missing): ", biblio_entry_str_json);
+          } else if ((biblio_entry["author_raw"].str.empty) && (biblio_entry["editor_raw"].str.empty)) {
+            writeln("check problem entry (No author and no editor): ", biblio_entry_str_json);
+          } else {
+            biblio_arr_json ~= biblio_entry_str_json;
+          }
+          biblio_entry_str_json = jsn.biblio_entry_tags_jsonstr;
+        }
+      } else {
+        writeln("?? 2. ERROR ", biblio_entry_str_json, "??");
+        biblio_entry_str_json = "";
+      }
+    } else if (line.matchFirst(rgx.biblio_tags)) {
+      debug(biblioblock) { writeln(line); }
+      auto bt = line.match(rgx.biblio_tags);
+      bib_entry = eN.bi.off;
+      st = bt.captures[1].to!string;
+      auto header_tag_value = (bt.captures[2]).to!string;
+      JSONValue j = parseJSON(biblio_entry_str_json);
+      biblio_tag_name = (st.match(rgx.biblio_abbreviations))
+        ? (biblio_tag_map(st))
+        : st;
+      j.object[biblio_tag_name] = header_tag_value;
+      debug(bibliounsortedcheckduplicates) { writeln(biblio_tag_name, ": ", header_tag_value); writeln("--"); }
+      switch (biblio_tag_name) {
+      case "author_raw": // author_arr author (fn sn)
+        j["author_arr"]
+         = header_tag_value.split(rgx.arr_delimiter);
+        string tmp;
+        biblioAuthorLoop:
+        foreach (au; j["author_arr"].array) {
+          if (auto x = au.str.match(rgx.name_delimiter)) {
+            tmp ~= x.captures[2] ~ " " ~ x.captures[1] ~ ", ";
+          } else {
+            tmp ~= au.str;
+          }
+        }
+        tmp = tmp.replace(rgx.trailing_comma, "");
+        j["author"].str = tmp;
+        goto default;
+      case "editor_raw": // editor_arr editor (fn sn)
+        j["editor_arr"]
+          = header_tag_value.split(rgx.arr_delimiter);
+        string tmp;
+        biblioEditorLoop:
+        foreach (ed; j["editor_arr"].array) {
+          if (auto x = ed.str.match(rgx.name_delimiter)) {
+            tmp ~= x.captures[2] ~ " " ~ x.captures[1] ~ ", ";
+          } else {
+            tmp ~= ed.str;
+          }
+        }
+        tmp = tmp.replace(rgx.trailing_comma, "");
+        j["editor"].str = tmp;
+        goto default;
+      case "fulltitle": // title & subtitle
+        goto default;
+      default:
+        break;
+      }
+      auto s = j.toString();
+      debug(biblio1) { writefln(
+          "* %s: %s\n%s",
+          biblio_tag_name,
+          biblio_tag_entry,
+          j[biblio_tag_name]
+        );
+      }
+      if (line.match(rgx.comment)) {
+        writeln("ERROR", line, "COMMENT");
+        writeln("ERROR", s, "%%");
+      }
+      if (!(match(line, rgx.comment))) {
+        debug(biblioblockinclude) { writeln(line); }
+        biblio_entry_str_json = s;
+      } else {
+        biblio_entry_str_json = "";
+      }
+      header_tag_value        = "";
+    }
+    ST_txt_by_line_block_biblio ret;
+    {
+      ret.pith                  = pith;
+      ret.bib_entry             = bib_entry;
+      ret.biblio_entry_str_json = biblio_entry_str_json;
+      ret.biblio_arr_json       = biblio_arr_json;
+    }
+    return ret;
+  }
+  // ↑ - text by line
+  // ↓ - para
+  string[string][string] inline_para_link_anchor()(
+    string[string]          an_object,
+    string[string]          tag_in_seg,
+    string[string][string]  tag_assoc
+  ) {
+    static auto rgx = RgxI();
+    if (auto m = an_object["substantive"].match(rgx.inline_link_anchor)) {
+      if (m.captures[1] !in tag_assoc) {
+        tag_assoc[(m.captures[1])]["seg_lv4"]    = tag_in_seg["seg_lv4"];
+        tag_assoc[(m.captures[1])]["seg_lv1to4"] = tag_in_seg["seg_lv1to4"];
+      } else {
+        writeln("a tag named  already exists, check text line\n    ", an_object["substantive"]);
+      }
+    }
+    return tag_assoc;
+  }
+  ST_flow_para_match flow_para_match_()(
+    char[]         line,
+    string[string]  an_object,
+    string          an_object_key,
+    int[string]     indent,
+    bool            bullet,
+    uint[string]    pith,
+    int[string]     line_occur,
+  ) {
+    static auto rgx = RgxI();
+    if (line_occur["para"] == eN.bi.off) {
+      line = font_faces_line(line);
+      // para matches
+      pith["txt_is"]           = eN.txt_is.para;
+      an_object[an_object_key] ~= line;
+      indent = [
+        "hang_position" : 0,
+        "base_position" : 0,
+      ];
+      bullet = false;
+      if (auto m = line.matchFirst(rgx.para_indent)) {
+        debug(paraindent) { writeln(line); }
+        indent["hang_position"] = (m["indent"]).to!int;
+        indent["base_position"] = (m["indent"]).to!int;
+      } else if (line.matchFirst(rgx.para_bullet)) {
+        debug(parabullet) { writeln(line); }
+        bullet = true;
+      } else if (auto m = line.matchFirst(rgx.para_indent_hang)) {
+        debug(paraindenthang) { writeln(line); }
+        indent = [
+          "hang_position" : (m["hang"]).to!int,
+          "base_position" : (m["indent"]).to!int,
+        ];
+      } else if (auto m = line.matchFirst(rgx.para_bullet_indent)) {
+        debug(parabulletindent) { writeln(line); }
+        indent = [
+          "hang_position" : (m["indent"]).to!int,
+          "base_position" : (m["indent"]).to!int,
+        ];
+        bullet = true;
+      }
+      ++line_occur["para"];
+    }
+    ST_flow_para_match ret;
+    {
+      ret.pith            = pith;
+      ret.this_object     = an_object;
+      ret.this_object_key = an_object_key;
+      ret.indent          = indent;
+      ret.bullet          = bullet;
+      ret.line_occur      = line_occur;
+    }
+    return ret;
+  }
+  // ↑ - para
+  // ↓ - heading
+  ST_flow_heading_found flow_heading_found_()(
+    char[]                line,
+    string[string]        heading_match_str,
+    string[]              _make_unmarked_headings,
+    Regex!(char)[string]  heading_match_rgx,
+    uint[string]          pith,
+  ) {
+    static auto rgx = RgxI();
+    if ((_make_unmarked_headings.length > 2)
+    && (pith["make_headings"] == eN.bi.off)) {                        // headings found
+      debug(headingsfound) { writeln(_make_unmarked_headings); }
+      debug(headingsfound) {
+        writeln(_make_unmarked_headings.length);
+        writeln(_make_unmarked_headings);
+      }
+      switch (_make_unmarked_headings.length) {
+      case 7 :
+        if (!empty(_make_unmarked_headings[6])) {
+          heading_match_str["h_4"]
+            = "^(" ~ _make_unmarked_headings[6].to!string ~ ")";
+          heading_match_rgx["h_4"]
+            = regex(heading_match_str["h_4"]);
+        }
+        goto case;
+      case 6 :
+        if (!empty(_make_unmarked_headings[5])) {
+          heading_match_str["h_3"]
+            = "^(" ~ _make_unmarked_headings[5].to!string ~ ")";
+          heading_match_rgx["h_3"]
+            = regex(heading_match_str["h_3"]);
+        }
+        goto case;
+      case 5 :
+        if (!empty(_make_unmarked_headings[4])) {
+          heading_match_str["h_2"]
+            = "^(" ~ _make_unmarked_headings[4].to!string ~ ")";
+          heading_match_rgx["h_2"]
+            = regex(heading_match_str["h_2"]);
+        }
+        goto case;
+      case 4 :
+        if (!empty(_make_unmarked_headings[3])) {
+          heading_match_str["h_1"]
+            = "^(" ~ _make_unmarked_headings[3].to!string ~ ")";
+          heading_match_rgx["h_1"]
+            = regex(heading_match_str["h_1"]);
+        }
+        goto case;
+      case 3 :
+        if (!empty(_make_unmarked_headings[2])) {
+          heading_match_str["h_D"]
+            = "^(" ~ _make_unmarked_headings[2].to!string ~ ")";
+          heading_match_rgx["h_D"]
+            = regex(heading_match_str["h_D"]);
+        }
+        goto case;
+      case 2 :
+        if (!empty(_make_unmarked_headings[1])) {
+          heading_match_str["h_C"]
+            = "^(" ~ _make_unmarked_headings[1].to!string ~ ")";
+          heading_match_rgx["h_C"]
+            = regex(heading_match_str["h_C"]);
+        }
+        goto case;
+      case 1 :
+        if (!empty(_make_unmarked_headings[0])) {
+          heading_match_str["h_B"]
+            = "^(" ~ _make_unmarked_headings[0].to!string ~ ")";
+          heading_match_rgx["h_B"]
+            = regex(heading_match_str["h_B"]);
+        }
+        break;
+      default:
+        break;
+      }
+      pith["make_headings"] = eN.bi.on;
+    }
+    ST_flow_heading_found ret;
+    {
+      ret.heading_match_str = heading_match_str;
+      ret.heading_match_rgx = heading_match_rgx;
+      ret.pith              = pith;
+    }
+    return ret;
+  }
+  ST_flow_heading_make_set flow_heading_make_set_()(
+               char[]                line,
+               int[string]           line_occur,
+    return ref Regex!(char)[string]  heading_match_rgx,
+    return ref uint[string]          pith,
+  ) {
+    if (pith["make_headings"] == eN.bi.on
+      && (line_occur["para"] == eN.bi.off
+      && line_occur["heading"] == eN.bi.off)
+      && pith["txt_is"] == eN.txt_is.off
+    ) {                             // heading make set
+      if (line.matchFirst(heading_match_rgx["h_B"])) {
+        line = "B~ " ~ line;
+        debug(headingsfound) { writeln(line); }
+      }
+      if (line.matchFirst(heading_match_rgx["h_C"])) {
+        line = "C~ " ~ line;
+        debug(headingsfound) { writeln(line); }
+      }
+      if (line.matchFirst(heading_match_rgx["h_D"])) {
+        line = "D~ " ~ line;
+        debug(headingsfound) { writeln(line); }
+      }
+      if (line.matchFirst(heading_match_rgx["h_1"])) {
+        line = "1~ " ~ line;
+        debug(headingsfound) { writeln(line); }
+      }
+      if (line.matchFirst(heading_match_rgx["h_2"])) {
+        line = "2~ " ~ line;
+        debug(headingsfound) { writeln(line); }
+      }
+      if (line.matchFirst(heading_match_rgx["h_3"])) {
+        line = "3~ " ~ line;
+        debug(headingsfound) { writeln(line); }
+      }
+      if (line.matchFirst(heading_match_rgx["h_4"])) {
+        line = "4~ " ~ line;
+        debug(headingsfound) { writeln(line); }
+      }
+    }
+    ST_flow_heading_make_set ret;
+    {
+      ret.line           = line;
+      ret.pith           = pith;
+      ret.this_object    = an_object;
+    }
+    return ret;
+  }
+  auto flow_heading_matched_(CMM)(
+    char[]          line,
+    string[string]  an_object,
+    int[string]     line_occur,
+    string          an_object_key,
+    int[string]     lv,
+    int[string]     collapsed_lev,
+    uint[string]    pith,
+    CMM             conf_make_meta,
+  ) {
+    static auto rgx = RgxI();
+    static auto mkup = InlineMarkup();
+    if (auto m = line.match(rgx.headings)) {                                      // heading match
+      ++line_occur["heading"];
+      pith["txt_is"]           = eN.txt_is.heading;
+      if (line.match(rgx.heading_seg_and_above)) {
+        pith["section"]        = eN.sect.unset;
+      }
+      an_object[an_object_key] ~= line ~= "\n";
+      an_object["lev"] ~= m.captures[1];
+      assertions_doc_structure(an_object, an_object_key, lv); // includes most of the logic for collapsed levels
+      switch (an_object["lev"]) {
+      case "A":                                // Title set
+        if ((an_object[an_object_key].match(rgx.variable_doc_title_author_date))
+        || (an_object[an_object_key].match(rgx.variable_doc_title)
+        && an_object[an_object_key].match(rgx.variable_doc_author)
+        && an_object[an_object_key].match(rgx.variable_doc_date))) {
+          an_object[an_object_key] = an_object[an_object_key]
+            .replaceFirst(rgx.variable_doc_title_author_date,
+              (conf_make_meta.meta.title_full
+              ~ mkup.br_line_inline
+              ~ conf_make_meta.meta.creator_author
+              ~ " (" ~ (conf_make_meta.meta.date_published.replaceFirst(regex(r"(?:-00)+"),"")) ~ ")"))
+            .replaceFirst(rgx.variable_doc_title,
+              (conf_make_meta.meta.title_full ~ mkup.br_line_inline))
+            .replaceFirst(rgx.variable_doc_author,
+              conf_make_meta.meta.creator_author)
+            .replaceFirst(rgx.variable_doc_date,
+              " (" ~ (conf_make_meta.meta.date_published.replaceFirst(regex(r"(?:-00)+"),"")) ~ ")");
+        } else if ((an_object[an_object_key].match(rgx.variable_doc_title_author))
+        || (an_object[an_object_key].match(rgx.variable_doc_title)
+        && an_object[an_object_key].match(rgx.variable_doc_author))) {
+          an_object[an_object_key] = an_object[an_object_key]
+            .replaceFirst(rgx.variable_doc_title_author_date,
+              (conf_make_meta.meta.title_full
+              ~ mkup.br_line_inline
+              ~ conf_make_meta.meta.creator_author))
+            .replaceFirst(rgx.variable_doc_title,
+              (conf_make_meta.meta.title_full ~ mkup.br_line_inline))
+            .replaceFirst(rgx.variable_doc_author,
+              conf_make_meta.meta.creator_author);
+        } else if (an_object[an_object_key].match(rgx.variable_doc_title)) {
+          an_object[an_object_key] = an_object[an_object_key]
+            .replaceFirst(rgx.variable_doc_title,
+              conf_make_meta.meta.title_full);
+        }
+        collapsed_lev["h0"] = 0;
+        an_object["lev_collapsed_number"]
+          = collapsed_lev["h0"].to!string;
+        lv["lv"] = DocStructMarkupHeading.h_sect_A;
+        ++lv["h0"];
+        lv["h1"] = eN.bi.off;
+        lv["h2"] = eN.bi.off;
+        lv["h3"] = eN.bi.off;
+        lv["h4"] = eN.bi.off;
+        lv["h5"] = eN.bi.off;
+        lv["h6"] = eN.bi.off;
+        lv["h7"] = eN.bi.off;
+        goto default;
+      case "B":
+        collapsed_lev["h1"] = collapsed_lev["h0"] + 1;
+        an_object["lev_collapsed_number"]
+          = collapsed_lev["h1"].to!string;
+        lv["lv"] = DocStructMarkupHeading.h_sect_B;
+        ++lv["h1"];
+        lv["h2"] = eN.bi.off;
+        lv["h3"] = eN.bi.off;
+        lv["h4"] = eN.bi.off;
+        lv["h5"] = eN.bi.off;
+        lv["h6"] = eN.bi.off;
+        lv["h7"] = eN.bi.off;
+        goto default;
+      case "C":
+        collapsed_lev["h2"] = collapsed_lev["h1"] + 1;
+        an_object["lev_collapsed_number"]
+          = collapsed_lev["h2"].to!string;
+        lv["lv"] = DocStructMarkupHeading.h_sect_C;
+        ++lv["h2"];
+        lv["h3"] = eN.bi.off;
+        lv["h4"] = eN.bi.off;
+        lv["h5"] = eN.bi.off;
+        lv["h6"] = eN.bi.off;
+        lv["h7"] = eN.bi.off;
+        goto default;
+      case "D":
+        collapsed_lev["h3"] = collapsed_lev["h2"] + 1;
+        an_object["lev_collapsed_number"]
+          = collapsed_lev["h3"].to!string;
+        lv["lv"] = DocStructMarkupHeading.h_sect_D;
+        ++lv["h3"];
+        lv["h4"] = eN.bi.off;
+        lv["h5"] = eN.bi.off;
+        lv["h6"] = eN.bi.off;
+        lv["h7"] = eN.bi.off;
+        goto default;
+      case "1":
+        if (lv["h3"] > eN.bi.off) {
+          collapsed_lev["h4"] = collapsed_lev["h3"] + 1;
+        } else if (lv["h2"] > eN.bi.off) {
+          collapsed_lev["h4"] = collapsed_lev["h2"] + 1;
+        } else if (lv["h1"] > eN.bi.off) {
+          collapsed_lev["h4"] = collapsed_lev["h1"] + 1;
+        } else if (lv["h0"] > eN.bi.off) {
+          collapsed_lev["h4"] = collapsed_lev["h0"] + 1;
+        }
+        an_object["lev_collapsed_number"]
+          = collapsed_lev["h4"].to!string;
+        lv["lv"] = DocStructMarkupHeading.h_text_1;
+        ++lv["h4"];
+        lv["h5"] = eN.bi.off;
+        lv["h6"] = eN.bi.off;
+        lv["h7"] = eN.bi.off;
+        goto default;
+      case "2":
+        if (lv["h5"] > eN.bi.off) {
+          an_object["lev_collapsed_number"]
+            = collapsed_lev["h5"].to!string;
+        } else if (lv["h4"] > eN.bi.off) {
+          collapsed_lev["h5"] = collapsed_lev["h4"] + 1;
+          an_object["lev_collapsed_number"]
+            = collapsed_lev["h5"].to!string;
+        }
+        lv["lv"] = DocStructMarkupHeading.h_text_2;
+        ++lv["h5"];
+        lv["h6"] = eN.bi.off;
+        lv["h7"] = eN.bi.off;
+        goto default;
+      case "3":
+        if (lv["h6"] > eN.bi.off) {
+          an_object["lev_collapsed_number"]
+            = collapsed_lev["h6"].to!string;
+        } else if (lv["h5"] > eN.bi.off) {
+          collapsed_lev["h6"] = collapsed_lev["h5"] + 1;
+          an_object["lev_collapsed_number"]
+            = collapsed_lev["h6"].to!string;
+        }
+        lv["lv"] = DocStructMarkupHeading.h_text_3;
+        ++lv["h6"];
+        lv["h7"] = eN.bi.off;
+        goto default;
+      case "4":
+        if (lv["h7"] > eN.bi.off) {
+          an_object["lev_collapsed_number"]
+            = collapsed_lev["h7"].to!string;
+        } else if (lv["h6"] > eN.bi.off) {
+          collapsed_lev["h7"] = collapsed_lev["h6"] + 1;
+          an_object["lev_collapsed_number"]
+            = collapsed_lev["h7"].to!string;
+        }
+        lv["lv"] = DocStructMarkupHeading.h_text_4;
+        ++lv["h7"];
+        goto default;
+      default:
+        an_object["lev_markup_number"] = lv["lv"].to!string;
+      }
+      an_object["dummy_heading_status"] = (pith["dummy_heading_status"] == eN.bi.off) ? "f" : "t";
+      debug(heading) { writeln(line.strip); }
+    }
+    struct ST_flow_heading_matched {
+      string[string]  this_object;
+      int[string]     line_occur;
+      string          an_object_key;
+      int[string]     lv;
+      int[string]     collapsed_lev;
+      uint[string]    pith;
+      CMM             conf_make_meta;
+    }
+    ST_flow_heading_matched ret;
+    {
+      ret.this_object    = an_object;
+      ret.line_occur     = line_occur;
+      ret.an_object_key  = an_object_key;
+      ret.lv             = lv;
+      ret.collapsed_lev  = collapsed_lev;
+      ret.pith           = pith;
+      ret.conf_make_meta = conf_make_meta;
+    }
+    return ret;
+  }
+  // ↑ - heading
+  // ↓ - table
+  ObjGenericComposite flow_table_instructions(H)(
+    ObjGenericComposite  table_object,
+    H                    table_head,
+  ) {
+    static auto rgx = RgxI();
+    table_object.metainfo.is_of_part        = "body";
+    table_object.metainfo.is_of_section     = "body";
+    table_object.metainfo.is_of_type        = "block";
+    table_object.metainfo.is_a              = "table";
+    table_object.has.inline_notes_reg       = false;
+    table_object.has.inline_notes_star      = false;
+    table_object.has.inline_links           = false;
+    if (auto m = table_head.matchFirst(rgx.table_head_instructions)) {
+      table_object.table.heading
+        = ((m["c_heading"].length > 0) && (m["c_heading"] == "h")) ? true : false;
+      table_object.table.number_of_columns
+        = ((m["c_num"].length > 0) && (m["c_num"].to!int > 0)) ? m["c_num"].to!int : 0;
+      foreach (cw; m["c_widths"].matchAll(rgx.table_col_widths)) {
+        auto x = cw.hit.matchFirst(rgx.table_col_widths_and_alignment);
+        table_object.table.column_widths ~= x["width"].to!int;
+        table_object.table.column_aligns ~= (x["align"].empty) ? "" : x["align"];
+      }
+    }
+    return table_object;
+  }
+  ST_flow_table_array_munge flow_table_array_munge()(
+    ObjGenericComposite  table_object,
+    string[][]           table_array,
+  ) {
+    static auto rgx = RgxI();
+    static auto mng = InlineMarkup();
+    string _table_substantive;
+    ulong col_num;
+    ulong col_num_;
+    ulong col_num_chk = 0;
+    foreach(idx_r, row; table_array) {
+      debug(table_dev) { writeln("row ", idx_r); }
+      col_num_ = 0;
+      if (col_num == 0
+      || col_num < row.length) {
+        col_num = row.length;
+      }
+      if (col_num_chk == 0) {
+        col_num_chk = col_num;
+      } else if (col_num == 1) {
+        debug(table_dev) { writeln("table note: "); }
+      } else if (col_num_chk != col_num) {
+        debug(table_dev) { writeln("warning irregular number of columns: ", col_num_chk, " != ", col_num); }
+      } else {
+      }
+      foreach(idx_c, col; row) {
+        debug(table_dev) { write(idx_c, ", "); }
+        col_num_ = idx_c;
+        _table_substantive ~= col ~ mng.tc_s;
+        if (idx_r == 0 && table_object.table.heading) {
+        } else if (col.match(rgx.numeric_col) && idx_r == 1) { // conditions reversed to avoid: gdc compiled program run segfault
+          if ((table_object.table.column_aligns.length > idx_c)
+          && (table_object.table.column_aligns[idx_c].matchFirst(rgx.table_col_align_match))) {
+            table_object.table.column_aligns[idx_c] = table_object.table.column_aligns[idx_c];
+          } else if (table_object.table.column_aligns.length > idx_c) {
+            table_object.table.column_aligns[idx_c] = "r";
+          } else {
+            table_object.table.column_aligns ~= "r";
+          }
+        } else if (idx_r == 1) {
+          if ((table_object.table.column_aligns.length > idx_c)
+          && (table_object.table.column_aligns[idx_c].matchFirst(rgx.table_col_align_match))) {
+            table_object.table.column_aligns[idx_c] = table_object.table.column_aligns[idx_c];
+          } else if (table_object.table.column_aligns.length > idx_c) {
+            table_object.table.column_aligns[idx_c] = "l";
+          } else {
+            table_object.table.column_aligns ~= "l";
+          }
+        }
+      }
+      debug(table_dev) { writeln(""); }
+      if (col_num_chk > 0 && (col_num != col_num_chk)) {
+      } else if (col_num == col_num_chk){
+      } else {
+        col_num_chk = col_num;
+      }
+      _table_substantive = _table_substantive.replaceFirst(rgx.table_col_separator_nl, "\n");
+    }
+    if (table_object.table.number_of_columns != col_num) {
+      if (table_object.table.number_of_columns == 0) {
+        table_object.table.number_of_columns = (col_num).to!int;
+      } else {
+        debug(table_dev) { writeln(table_object.table.number_of_columns, " != ", col_num); }
+      }
+    }
+    if (table_object.table.number_of_columns == 0
+    && table_object.table.column_widths.length > 0) {
+      writeln(__LINE__, " ERROR");
+    }
+    if (table_object.table.number_of_columns > 0
+    && table_object.table.column_widths.length == 0) {
+      double col_w = (100.00 / table_object.table.number_of_columns);
+      foreach (i; 0..table_object.table.number_of_columns) {
+        table_object.table.column_widths ~= col_w;
+      }
+    } else if (table_object.table.number_of_columns
+    != table_object.table.column_widths.length) {
+      debug(table_dev) { writeln(m.hit); } // further logic required
+      if (table_object.table.number_of_columns > table_object.table.column_widths.length) {
+        double col_w = (100.00 - (table_object.table.column_widths).sum)
+          / (table_object.table.number_of_columns - table_object.table.column_widths.length);
+        foreach (i; 0..table_object.table.column_widths.length) {
+          table_object.table.column_widths ~= col_w;
+        }
+        foreach (i; 0..(table_object.table.number_of_columns - table_object.table.column_widths.length)) {
+          table_object.table.column_widths ~= col_w;
+        }
+      } else if (table_object.table.number_of_columns < table_object.table.column_widths.length) {
+        writeln(__LINE__, " warning, ERROR");
+      }
+    }
+    if (table_object.table.column_widths.sum > 101
+    || table_object.table.column_widths.sum < 95 ) {
+      writeln("sum: ", table_object.table.column_widths.sum,
+        ", array: ", table_object.table.column_widths,
+        ", cols: ", table_object.table.number_of_columns);
+      writeln(_table_substantive);
+    }
+    debug(table_res) {
+      writeln("aligns: ", table_object.table.column_aligns, "\n",
+        "no. of columns: ", table_object.table.number_of_columns, "\n",
+        "col widths: ", table_object.table.column_widths,
+          " sum: ", table_object.table.column_widths.sum, "\n",
+        _table_substantive);
+    }
+    table_object.text = _table_substantive;
+    ST_flow_table_array_munge ret;
+    {
+      ret.table_object      = table_object;
+      ret.table_array       = table_array;
+    }
+    return ret;
+  }
+  @system ST_flow_table_substantive_munge flow_table_substantive_munge()(
+    ObjGenericComposite  table_object,
+    string               table_substantive,
+  ) {
+    static auto rgx = RgxI();
+    static auto munge = ObjInlineMarkupMunge();
+    string[] _table_rows = (table_substantive).split(rgx.table_row_delimiter);
+    string[] _table_cols;
+    string[][] _table_array;
+    foreach(col; _table_rows) {
+      _table_cols = col.split(rgx.table_col_delimiter);
+      _table_array ~= _table_cols;
+    }
+    {
+      auto _get = table_object.flow_table_array_munge(_table_array);
+      {
+        table_object = _get.table_object;
+        _table_array = _get.table_array; // what do you do with this? how is this passed down?
+      }
+    }
+    ST_flow_table_substantive_munge ret;
+    {
+      ret.table_object      = table_object;
+      ret.table_substantive = table_substantive; // has anything been changed here?
+    }
+    return ret;
+  }
+  @system ST_flow_table_substantive_munge flow_table_substantive_munge_special()(
+    ObjGenericComposite  table_object,
+    string               table_substantive,
+  ) {
+    static auto rgx = RgxI();
+    static auto munge = ObjInlineMarkupMunge();
+    string[] _table_rows = (table_substantive).split(rgx.table_row_delimiter_special);
+    string[] _table_cols;
+    string[][] _table_array;
+    foreach(col; _table_rows) {
+      _table_cols = col.split(rgx.table_col_delimiter_special);
+      _table_array ~= _table_cols;
+    }
+    {
+      auto _get = table_object.flow_table_array_munge(_table_array);
+      {
+        table_object = _get.table_object;
+        _table_array = _get.table_array;
+      }
+    }
+    ST_flow_table_substantive_munge ret;
+    {
+      ret.table_object      = table_object;
+      ret.table_substantive = table_substantive;
+    }
+    return ret;
+  }
+  @system ST_flow_table_closed_make_special_notation_table flow_table_closed_make_special_notation_table_(CMM)(
+    char[]                line,
+    string[string]        an_object,
+    ObjGenericComposite[] the_document_body_section,
+    OCNset                obj_cite_digits,
+    ObjGenericComposite   comp_obj_,
+    int                   cntr,
+    uint[string]          pith,
+    CMM                   conf_make_meta
+  ) {
+    comp_obj_       = comp_obj_.init;
+    obj_cite_digits = ocn_emit(pith["ocn"]);
+    auto comp_obj_location = node_construct.node_location_emitter(
+        content_non_header,
+        tag_in_seg,
+        lev_anchor_tag,
+        tag_assoc,
+        obj_cite_digits,
+        cntr,
+        heading_ptr-1,
+        "table"
+      );
+    an_object["is"]                                             = "table";
+    ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+      = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, "body_nugget", conf_make_meta, No._new_doc);
+    an_object["substantive"]                                    = substantive_obj_misc_struct.obj_txt;
+    comp_obj_.metainfo.ocn                                      = obj_cite_digits.object_number;
+    comp_obj_.metainfo.identifier                               = obj_cite_digits.identifier;
+    comp_obj_.metainfo.object_number_off                        = obj_cite_digits.off;
+    comp_obj_.tags.html_segment_anchor_tag_is                   = tag_in_seg["seg_lv4"];
+    comp_obj_.tags.epub_segment_anchor_tag_is                   = tag_in_seg["seg_lv1to4"];
+    comp_obj_.metainfo.o_n_book_index                           = obj_cite_digits.bkidx;
+    comp_obj_.metainfo.object_number_type                       = obj_cite_digits.type;
+    comp_obj_                                                   = comp_obj_.flow_table_instructions(an_object["table_head"]);
+    {
+      auto _get = comp_obj_.flow_table_substantive_munge_special(an_object["substantive"]);
+      {
+        comp_obj_           = _get.table_object;
+        an_object["substantive"] = _get.table_substantive;
+      }
+    }
+    the_document_body_section                                   ~= comp_obj_;
+    object_reset(an_object);
+    processing.remove("verse");
+    ++cntr;
+    ST_flow_table_closed_make_special_notation_table ret;
+    {
+      ret.this_object               = an_object;
+      ret.the_document_body_section = the_document_body_section;
+      ret.obj_cite_digits           = obj_cite_digits;
+      ret.comp_obj_                 = comp_obj_;
+      ret.cntr                      = cntr;
+      ret.pith                      = pith;
+    }
+    return ret;
+  }
+  // ↑ - table
+  
+  @system ST_flow_block_flag_line_empty flow_block_flag_line_empty_(B,CMM,Ts)(
+    char[]                   line,
+    string[string]           an_object,
+    B                        bookindex_extract_hash,
+    ObjGenericComposite[]    the_document_body_section,
+    string[][string][string] bookindex_unordered_hashes,
+    OCNset                   obj_cite_digits,
+    ObjGenericComposite      comp_obj_,
+    int                      cntr,
+    uint[string]             pith,
+    string[string]           object_number_poem,
+    CMM                      conf_make_meta,
+    Ts                       tag_in_seg,
+  ) {
+    assert(
+      line.empty,
+      "\nline should be empty:\n  \""
+      ~ line ~ "\""
+    );
+    assert(
+      (pith["block_state"] == eN.blk_state.closing),
+      "code block status: closed"
+    );
+    static auto rgx = RgxI();
+    if (pith["block_state"] == eN.blk_state.closing) {
+      if (pith["block_is"] == eN.blk_is.quote) {
+        obj_cite_digits = ocn_emit(pith["ocn"]);
+        an_object["bookindex_nugget"]
+          = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+        bookindex_unordered_hashes
+          = bookindex_extract_hash.bookindex_nugget_hash(
+            an_object["bookindex_nugget"],
+            obj_cite_digits,
+            tag_in_seg
+          );
+        an_object["is"]                                         = "quote";
+        auto comp_obj_location
+          = node_construct.node_location_emitter(
+            content_non_header,
+            tag_in_seg,
+            lev_anchor_tag,
+            tag_assoc,
+            obj_cite_digits,
+            cntr,
+            heading_ptr-1,
+            an_object["is"]
+          );
+        ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+          = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+        an_object["substantive"]                                = substantive_obj_misc_struct.obj_txt;
+        anchor_tag                                              = substantive_obj_misc_struct.anchor_tag;
+        comp_obj_                                               = set_object_generic("body", "body", "block", "quote", an_object["substantive"], obj_cite_digits.object_number);
+        comp_obj_.metainfo.identifier                           = obj_cite_digits.identifier;
+        comp_obj_.metainfo.object_number_off                    = obj_cite_digits.off;
+        comp_obj_.metainfo.o_n_book_index                       = obj_cite_digits.bkidx;
+        comp_obj_.metainfo.object_number_type                   = obj_cite_digit_type;
+        comp_obj_.metainfo.lang                                 = an_object["lang"];
+        comp_obj_.metainfo.attrib                               = an_object["attrib"];
+        comp_obj_.tags.html_segment_anchor_tag_is               = tag_in_seg["seg_lv4"];
+        comp_obj_.tags.epub_segment_anchor_tag_is               = tag_in_seg["seg_lv1to4"];
+        comp_obj_.has.inline_notes_reg                          = substantive_obj_misc_struct.has_notes_reg;
+        comp_obj_.has.inline_notes_star                         = substantive_obj_misc_struct.has_notes_star;
+        comp_obj_.has.inline_links                              = substantive_obj_misc_struct.has_links;
+        the_document_body_section                               ~= comp_obj_;
+        tag_assoc                                               = an_object.inline_para_link_anchor(tag_in_seg, tag_assoc);
+        pith["block_is"]                                        = eN.blk_is.quote;
+        pith["block_state"]                                     = eN.blk_state.off;
+        pith["block_delim"]                                     = eN.blk_delim.off;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      } else if (pith["block_is"] == eN.blk_is.group) {
+        obj_cite_digits = ocn_emit(pith["ocn"]);
+        an_object["bookindex_nugget"]
+          = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+        bookindex_unordered_hashes
+          = bookindex_extract_hash.bookindex_nugget_hash(
+            an_object["bookindex_nugget"],
+            obj_cite_digits,
+            tag_in_seg
+          );
+        an_object["is"]                                         = "group";
+        auto comp_obj_location
+          = node_construct.node_location_emitter(
+            content_non_header,
+            tag_in_seg,
+            lev_anchor_tag,
+            tag_assoc,
+            obj_cite_digits,
+            cntr,
+            heading_ptr-1,
+            an_object["is"]
+          );
+        ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+          = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+        an_object["substantive"]                                = substantive_obj_misc_struct.obj_txt;
+        anchor_tag                                              = substantive_obj_misc_struct.anchor_tag;
+        comp_obj_                                               = set_object_generic("body", "body", "block", "group", an_object["substantive"], obj_cite_digits.object_number);
+        comp_obj_.metainfo.identifier                           = obj_cite_digits.identifier;
+        comp_obj_.metainfo.object_number_off                    = obj_cite_digits.off;
+        comp_obj_.metainfo.o_n_book_index                       = obj_cite_digits.bkidx;
+        comp_obj_.metainfo.object_number_type                   = obj_cite_digits.type;
+        comp_obj_.metainfo.lang                                 = an_object["lang"];
+        comp_obj_.metainfo.attrib                               = an_object["attrib"];
+        comp_obj_.tags.html_segment_anchor_tag_is               = tag_in_seg["seg_lv4"];
+        comp_obj_.tags.epub_segment_anchor_tag_is               = tag_in_seg["seg_lv1to4"];
+        comp_obj_.has.inline_notes_reg                          = substantive_obj_misc_struct.has_notes_reg;
+        comp_obj_.has.inline_notes_star                         = substantive_obj_misc_struct.has_notes_star;
+        comp_obj_.has.inline_links                              = substantive_obj_misc_struct.has_links;
+        the_document_body_section                               ~= comp_obj_;
+        tag_assoc                                               = an_object.inline_para_link_anchor(tag_in_seg, tag_assoc);
+        pith["block_is"]                                        = eN.blk_is.poem;
+        pith["block_state"]                                     = eN.blk_state.off;
+        pith["block_delim"]                                     = eN.blk_delim.off;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      } else if (pith["block_is"] == eN.blk_is.block) {
+        obj_cite_digits = ocn_emit(pith["ocn"]);
+        an_object["bookindex_nugget"]
+          = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+        bookindex_unordered_hashes
+          = bookindex_extract_hash.bookindex_nugget_hash(
+            an_object["bookindex_nugget"],
+            obj_cite_digits,
+            tag_in_seg
+          );
+        an_object["is"]                                         = "block";
+        auto comp_obj_location
+          = node_construct.node_location_emitter(
+            content_non_header,
+            tag_in_seg,
+            lev_anchor_tag,
+            tag_assoc,
+            obj_cite_digits,
+            cntr,
+            heading_ptr-1,
+            an_object["is"]
+          );
+        ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+          = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+        an_object["substantive"]                                = substantive_obj_misc_struct.obj_txt;
+        // anchor_tag                                           = substantive_obj_misc_struct.anchor_tag; // check
+        comp_obj_                                               = set_object_generic("body", "body", "block", "block", an_object["substantive"], obj_cite_digits.object_number);
+        comp_obj_.metainfo.identifier                           = obj_cite_digits.identifier;
+        comp_obj_.metainfo.object_number_off                    = obj_cite_digits.off;
+        comp_obj_.metainfo.o_n_book_index                       = obj_cite_digits.bkidx;
+        comp_obj_.metainfo.object_number_type                   = obj_cite_digit_type;
+        comp_obj_.metainfo.lang                                 = an_object["lang"];
+        comp_obj_.metainfo.attrib                               = an_object["attrib"];
+        comp_obj_.tags.html_segment_anchor_tag_is               = tag_in_seg["seg_lv4"];
+        comp_obj_.tags.epub_segment_anchor_tag_is               = tag_in_seg["seg_lv1to4"];
+        comp_obj_.has.inline_notes_reg                          = substantive_obj_misc_struct.has_notes_reg;
+        comp_obj_.has.inline_notes_star                         = substantive_obj_misc_struct.has_notes_star;
+        comp_obj_.has.inline_links                              = substantive_obj_misc_struct.has_links;
+        the_document_body_section                               ~= comp_obj_;
+        pith["block_is"]                                        = eN.blk_is.block;
+        pith["block_state"]                                     = eN.blk_state.off;
+        pith["block_delim"]                                     = eN.blk_delim.off;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      } else if (pith["block_is"] == eN.blk_is.poem) {
+        an_object["bookindex_nugget"]
+          = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+        bookindex_unordered_hashes
+          = bookindex_extract_hash.bookindex_nugget_hash(
+            an_object["bookindex_nugget"],
+            obj_cite_digits,
+            tag_in_seg
+          );
+        an_object["is"]                                         = "verse";
+        auto comp_obj_location
+          = node_construct.node_location_emitter(
+            content_non_header,
+            tag_in_seg,
+            lev_anchor_tag,
+            tag_assoc,
+            obj_cite_digits,
+            cntr,
+            heading_ptr-1,
+            an_object["is"]
+          );
+        comp_obj_poem_ocn                                       = set_object_generic("body", "body", "block", "poem", "", obj_cite_digits.object_number);
+        comp_obj_poem_ocn.metainfo.identifier                   = obj_cite_digits.identifier;
+        comp_obj_poem_ocn.metainfo.object_number_off            = obj_cite_digits.off;
+        comp_obj_poem_ocn.metainfo.o_n_book_index               = obj_cite_digits.bkidx;
+        comp_obj_poem_ocn.metainfo.object_number_type           = obj_cite_digits.type;
+        the_document_body_section                               ~= comp_obj_poem_ocn;
+        pith["block_is"]                                        = eN.blk_is.poem;
+        pith["block_state"]                                     = eN.blk_state.off;
+        pith["block_delim"]                                     = eN.blk_delim.off;
+        object_reset(an_object);
+        processing.remove("verse");
+      } else if (pith["block_is"] == eN.blk_is.code) {
+        obj_cite_digits = ocn_emit(pith["ocn"]);
+        an_object["bookindex_nugget"]
+          = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+        bookindex_unordered_hashes
+          = bookindex_extract_hash.bookindex_nugget_hash(
+            an_object["bookindex_nugget"],
+            obj_cite_digits,
+            tag_in_seg
+          );
+        an_object["is"]                                         = "code";
+        auto comp_obj_location
+          = node_construct.node_location_emitter(
+            content_non_header,
+            tag_in_seg,
+            lev_anchor_tag,
+            tag_assoc,
+            obj_cite_digits,
+            cntr,
+            heading_ptr-1,
+            an_object["is"]
+          );
+        ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+          = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+        an_object["substantive"]                                = substantive_obj_misc_struct.obj_txt;
+        anchor_tag                                              = substantive_obj_misc_struct.anchor_tag;
+        comp_obj_                                               = set_object_generic("body", "body", "block", "code", an_object["substantive"], obj_cite_digits.object_number);
+        comp_obj_.metainfo.identifier                           = obj_cite_digits.identifier;
+        comp_obj_.metainfo.object_number_off                    = obj_cite_digits.off;
+        comp_obj_.metainfo.o_n_book_index                       = obj_cite_digits.bkidx;
+        comp_obj_.metainfo.object_number_type                   = obj_cite_digits.type;
+        comp_obj_.metainfo.syntax                               = an_object["syntax"];
+        comp_obj_.metainfo.attrib                               = an_object["attrib"];
+        comp_obj_.code_block.linenumbers                        = (an_object["attrib"].match(rgx.code_numbering)) ? true : false;
+        comp_obj_.tags.html_segment_anchor_tag_is               = tag_in_seg["seg_lv4"];
+        comp_obj_.tags.epub_segment_anchor_tag_is               = tag_in_seg["seg_lv1to4"];
+        comp_obj_.has.inline_notes_reg                          = substantive_obj_misc_struct.has_notes_reg;
+        comp_obj_.has.inline_notes_star                         = substantive_obj_misc_struct.has_notes_star;
+        comp_obj_.has.inline_links                              = substantive_obj_misc_struct.has_links;
+        the_document_body_section                               ~= comp_obj_;
+        pith["block_is"]                                        = eN.blk_is.code;
+        pith["block_state"]                                     = eN.blk_state.off;
+        pith["block_delim"]                                     = eN.blk_delim.off;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      } else if (pith["block_is"]    == eN.blk_is.table) {
+        comp_obj_ = comp_obj_.init;
+        obj_cite_digits = ocn_emit(pith["ocn"]);
+        an_object["bookindex_nugget"]
+          = ("bookindex_nugget" in an_object) ? an_object["bookindex_nugget"] : "";
+        bookindex_unordered_hashes
+          = bookindex_extract_hash.bookindex_nugget_hash(
+            an_object["bookindex_nugget"],
+            obj_cite_digits,
+            tag_in_seg
+          );
+        an_object["is"]                                         = "table";
+        auto comp_obj_location
+          = node_construct.node_location_emitter(
+            content_non_header,
+            tag_in_seg,
+            lev_anchor_tag,
+            tag_assoc,
+            obj_cite_digits,
+            cntr,
+            heading_ptr-1,
+            an_object["is"]
+          );
+        ST_txtAndAnchorTagPlusHasFootnotesUrlsImages substantive_obj_misc_struct
+          = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta, No._new_doc);
+        an_object["substantive"]                                = substantive_obj_misc_struct.obj_txt;
+        comp_obj_                                               = comp_obj_.init;
+        comp_obj_.metainfo.ocn                                  = obj_cite_digits.object_number;
+        comp_obj_.metainfo.identifier                           = obj_cite_digits.identifier;
+        comp_obj_.metainfo.object_number_off                    = obj_cite_digits.off;
+        comp_obj_.tags.html_segment_anchor_tag_is               = tag_in_seg["seg_lv4"];
+        comp_obj_.tags.epub_segment_anchor_tag_is               = tag_in_seg["seg_lv1to4"];
+        comp_obj_.metainfo.o_n_book_index                       = obj_cite_digits.bkidx;
+        comp_obj_.metainfo.object_number_type                   = obj_cite_digits.type;
+        comp_obj_                                               = comp_obj_.flow_table_instructions(an_object["table_head"]);
+        {
+          auto _get = comp_obj_.flow_table_substantive_munge(an_object["substantive"]);
+          {
+            comp_obj_           = _get.table_object;
+            an_object["substantive"] = _get.table_substantive;
+          }
+        }
+        the_document_body_section                               ~= comp_obj_;
+        pith["block_is"]                                        = eN.blk_is.table;
+        pith["block_state"]                                     = eN.blk_state.off;
+        pith["block_delim"]                                     = eN.blk_delim.off;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      }
+    }
+    ST_flow_block_flag_line_empty ret;
+    {
+      ret.this_object                = an_object;
+      ret.the_document_body_section  = the_document_body_section;
+      ret.bookindex_unordered_hashes = bookindex_unordered_hashes;
+      ret.obj_cite_digits            = obj_cite_digits;
+      ret.comp_obj_                  = comp_obj_; //
+      ret.cntr                       = cntr;
+      ret.pith                       = pith;
+    }
+    return ret;
+  }
+  // ↓ - object set
+  ObjGenericComposite set_object_heading()(
+    string level,
+    string part,
+    string section,
+    string text,
+  ) {
+    ObjGenericComposite comp_obj;
+    {
+      comp_obj                                                = comp_obj.init;
+      comp_obj.metainfo.is_of_part                            = part;
+      comp_obj.metainfo.is_of_section                         = section;
+      comp_obj.metainfo.is_of_type                            = "para";
+      comp_obj.metainfo.is_a                                  = "heading";
+      comp_obj.text                                           = text;
+      comp_obj.metainfo.ocn                                   = 0;
+      if (level == "lev1") {
+        comp_obj.metainfo.heading_lev_markup                  = 1;
+        comp_obj.metainfo.heading_lev_collapsed               = 1;
+        comp_obj.metainfo.parent_ocn                          = 1;
+        comp_obj.metainfo.parent_lev_markup                   = 0;
+      } else if (level == "lev4") {
+        comp_obj.metainfo.heading_lev_markup                  = 4;
+        comp_obj.metainfo.heading_lev_collapsed               = 1;
+        comp_obj.metainfo.parent_ocn                          = 1;
+        comp_obj.metainfo.parent_lev_markup                   = 0;
+        comp_obj.metainfo.dom_structure_markedup_tags_status  = [ 1, 1, 0, 0, 1, 0, 0, 0];
+        comp_obj.metainfo.dom_structure_collapsed_tags_status = [ 1, 1, 1, 0, 0, 0, 0, 0];
+      }
+    }
+    return comp_obj;
+  }
+  ObjGenericComposite set_object_generic()(
+    string part,
+    string section,
+    string type,
+    string is_a,
+    string text,
+    int ocn,
+  ) {
+    ObjGenericComposite comp_obj;
+    {
+      comp_obj                                                = comp_obj.init;
+      comp_obj.metainfo.is_of_part                            = part;
+      comp_obj.metainfo.is_of_section                         = section;
+      comp_obj.metainfo.is_of_type                            = type;
+      comp_obj.metainfo.is_a                                  = is_a;
+      comp_obj.text                                           = text;
+      comp_obj.metainfo.ocn                                   = ocn;
+    }
+    return comp_obj;
+  }
+  // ↑ - object set
+  // ↓ - object inline munge
+  static struct ObjInlineMarkupMunge {
+    string[string] obj_txt;
+    int n_foot, n_foot_reg, n_foot_sp_asterisk, n_foot_sp_plus;
+    string asterisks_, plus_;
+    string obj_txt_out, tail, note;
+    static auto rgx = RgxI();
+    static auto mkup = InlineMarkup();
+    int stage_reset_note_numbers = true;
+    private auto initialize_note_numbers() {
+      n_foot                          = 0;
+      n_foot_reg                      = 0;
+      n_foot_sp_asterisk              = 0;
+      n_foot_sp_plus                  = 0;
+    }
+    static auto images()(string obj_txt_in) {
+      static auto mng = InlineMarkup();
+      // url matched
+      obj_txt_in = obj_txt_in.replaceAll(rgx.inline_notes_al_special, ""); // TODO reinstate when special footnotes are implemented
+      if (obj_txt_in.match(rgx.smid_image_generic)) {                            // images with and without links
+        debug(images) { writeln("Image: ", obj_txt_in); }
+        if (obj_txt_in.match(rgx.smid_image_with_dimensions)) {
+          obj_txt_in = obj_txt_in
+            .replaceAll(rgx.smid_image_with_dimensions, ("$1" ~ mkup.img ~ "$2,w$3h$4 " ~ "$5"))
+            .replaceAll(rgx.smid_image_delimit, ("$1"
+              ~ mkup.lnk_o ~ "$2".strip ~ mkup.lnk_c
+              ~ mkup.url_o ~ mkup.url_c));
+          debug(images) { writeln("IMAGE with size: ", obj_txt_in); }
+        } else if (obj_txt_in.match(rgx.smid_image)) {
+          obj_txt_in = obj_txt_in
+            .replaceAll(rgx.smid_image, ("$1" ~ mkup.img ~ "$2,w0h0" ~ "$3"))
+            .replaceAll(rgx.smid_image_delimit, ("$1"
+              ~ mkup.lnk_o ~ "$2".strip ~ mkup.lnk_c
+              ~ mkup.url_o ~ mkup.url_c));
+          debug(images) { writeln("IMAGE: ", obj_txt_in); } // decide on representation
+        }
+      }
+      return obj_txt_in;
+    }
+    ST_txtPlusHasFootnotes footnotes_endnotes_markup_and_number_or_stars()(string obj_txt_in, bool reset_note_numbers) {
+      // endnotes (regular)
+      bool flg_notes_reg  = false;
+      bool flg_notes_star = false;
+      bool flg_notes_plus = false;
+      obj_txt_in = obj_txt_in.replaceAll(
+        rgx.inline_notes_curly,
+        (mkup.en_a_o ~ " $1" ~ mkup.en_a_c)
+      );
+      if (!(stage_reset_note_numbers) && reset_note_numbers) {
+        stage_reset_note_numbers = true;
+      }
+      obj_txt_out = "";
+      if (obj_txt_in.match(rgx.inline_notes_al_gen)) {
+        string[] _tmp_txt;
+        foreach (x; obj_txt_in.split("\n")) {
+          if (auto m = x.matchAll(rgx.inline_text_and_note_al_)) {
+            if (stage_reset_note_numbers) {
+              n_foot                  = 0;
+              n_foot_reg              = 0;
+              n_foot_sp_asterisk      = 0;
+              n_foot_sp_plus          = 0;
+            }
+            stage_reset_note_numbers = false;
+            foreach(n; m) {
+              if (n.hit.to!string.match(rgx.inline_al_delimiter_open_symbol_star)) {
+                flg_notes_star =  true;
+                ++n_foot_sp_asterisk;
+                asterisks_ = "*";
+                n_foot = n_foot_sp_asterisk;
+                _tmp_txt ~= n.hit.to!string.replaceFirst(
+                  rgx.inline_al_delimiter_open_symbol_star,
+                  (mkup.en_a_o ~ replicate(asterisks_, n_foot_sp_asterisk) ~ " ")
+                );
+              } else if (n.hit.to!string.match(rgx.inline_al_delimiter_open_symbol_plus)) {
+                flg_notes_plus =  true;
+                ++n_foot_sp_plus;
+                plus_ = "*";
+                n_foot = n_foot_sp_plus;
+                _tmp_txt ~= n.hit.to!string.replaceFirst(
+                  rgx.inline_al_delimiter_open_symbol_plus,
+                  (mkup.en_a_o ~ replicate(plus_, n_foot_sp_plus) ~ " ")
+                );
+              } else if (n.hit.to!string.matchFirst(rgx.inline_al_delimiter_open_regular)) {
+                string _tmp_str = n.hit.to!string;
+                flg_notes_reg =  true;
+                foreach (q; n.hit.to!string.matchAll(rgx.inline_al_delimiter_open_regular)) {
+                  ++n_foot_reg;
+                  n_foot = n_foot_reg;
+                  _tmp_str = replaceFirst!(m => mkup.en_a_o ~ n_foot.to!string ~ " ")
+                    (_tmp_str, rgx.inline_al_delimiter_open_regular);
+                }
+                _tmp_txt ~= _tmp_str;
+              } else {
+                _tmp_txt ~= n.hit.to!string;
+              }
+            }
+            obj_txt_out = _tmp_txt.join("\n");
+          }
+        }
+      } else {
+        obj_txt_out = obj_txt_in;
+      }
+      ST_txtPlusHasFootnotes ret;
+      {
+        ret.obj_txt            = obj_txt_out;
+        ret.has_notes_reg      = flg_notes_reg;
+        ret.has_notes_star     = flg_notes_star;
+        ret.has_notes_plus     = flg_notes_plus;
+      }
+      return ret;
+    }
+    private ST_txtPlusHasFootnotesUrlsImages object_notes_and_links_()(
+      string obj_txt_in,
+      bool reset_note_numbers = false
+    ) {
+      obj_txt_out = "";
+      bool urls = false;
+      bool images_without_dimensions = false;
+      tail = "";
+      // special endnotes
+      obj_txt_in = obj_txt_in.replaceAll(
+        rgx.inline_notes_curly_sp_asterisk,
+        (mkup.en_a_o ~ "*" ~ " $1" ~ mkup.en_a_c)
+      );
+      obj_txt_in
+        = obj_txt_in.replaceAll(
+          rgx.inline_notes_curly_sp_plus,
+          (mkup.en_a_o ~ "+" ~ " $1" ~ mkup.en_a_c)
+        );
+      // image matched
+      if (obj_txt_in.match(rgx.smid_image_generic)) {
+        obj_txt_in = images(obj_txt_in);
+        if (obj_txt_in.match(rgx.smid_mod_image_without_dimensions)) {
+          images_without_dimensions = true;
+        }
+      }
+      // url matched
+      if (obj_txt_in.match(rgx.smid_inline_url)) {
+        urls = true;
+        obj_txt_in = obj_txt_in.links_and_images;
+      }
+      if (auto m = obj_txt_in.match(rgx.para_inline_link_anchor)) {
+        obj_txt_in = obj_txt_in
+          .replaceAll(rgx.para_inline_link_anchor, "┃$1┃");
+      }
+      ST_txtPlusHasFootnotes ftn = footnotes_endnotes_markup_and_number_or_stars(obj_txt_in, reset_note_numbers);
+      obj_txt_out = ftn.obj_txt;
+      debug(footnotes) { writeln(obj_txt_out, tail); }
+      obj_txt_out = obj_txt_out ~ tail;
+      debug(footnotesdone) {
+        foreach(m; matchAll(obj_txt_out, (mkup.en_a_o ~ `\s*(.+?)` ~ mkup.en_a_c))) {
+          writeln(m[1]);
+          writeln(m.hit);
+        }
+      }
+      ST_txtPlusHasFootnotesUrlsImages ret;
+      {
+        ret.obj_txt                       = obj_txt_out;
+        ret.has_notes_reg                 = ftn.has_notes_reg;
+        ret.has_notes_star                = ftn.has_notes_star;
+        ret.has_notes_plus                = ftn.has_notes_plus;
+        ret.has_urls                      = urls;
+        ret.has_images_without_dimensions = images_without_dimensions;
+      }
+      return ret;
+    }
+    private ST_txtPlusHasFootnotesUrlsImages object_only_()(
+      string obj_txt_in,
+      bool reset_note_numbers = false
+    ) {
+      ST_txtPlusHasFootnotesUrlsImages ret;
+      {
+        ret.obj_txt                       = obj_txt_in;
+        ret.has_notes_reg                 = false;
+        ret.has_notes_star                = false;
+        ret.has_notes_plus                = false;
+        ret.has_urls                      = false;
+        ret.has_images_without_dimensions = false;
+      }
+      return ret;
+    }
+    ST_txtPlusHasFootnotesUrlsImages init() {
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_("");
+      return ret;
+    }
+    invariant() {
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_heading()(
+      string obj_txt_in,
+      bool reset_note_numbers = false
+    ) {
+      obj_txt["munge"] = obj_txt_in
+       .replaceFirst(rgx.headings, "")
+       .replaceFirst(rgx.object_number_off_all, "")
+       .replaceFirst(rgx.markup_inline_linebreak, mkup.br_line_inline)
+       .strip;
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt["munge"], reset_note_numbers);
+      debug(munge) { writeln(__LINE__); writeln(obj_txt_in); writeln(__LINE__); writeln(obj_txt["munge"].to!string); }
+      return ret;
+    }
+    invariant() {
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_para()(string obj_txt_in) {
+      obj_txt["munge"] = (obj_txt_in)
+        .replaceFirst(rgx.para_attribs, "")
+        .replaceFirst(rgx.object_number_off_all, "")
+        .replaceFirst(rgx.markup_inline_linebreak, mkup.br_line_inline);
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt["munge"]);
+      debug(munge) { writeln(__LINE__); writeln(obj_txt_in);
+        writeln(__LINE__);
+        writeln(obj_txt["munge"].to!string);
+      }
+      return ret;
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_quote()(string obj_txt_in) {
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in.split("\n\n").join(" \\\\\n \\\\\n"));
+      return ret;
+    }
+    invariant() {
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_group(string obj_txt_in) {
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in.split("\n\n").join("\n" ~ mkup.br_line_spaced ~ "\n"));
+      return ret;
+    }
+    invariant() {
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_block()(string obj_txt_in) {
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in);
+      return ret;
+    }
+    invariant() {
+    }
+    auto munge_verse()(string obj_txt_in) {
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in);
+      return ret;
+    }
+    invariant() {
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_code()(string obj_txt_in) {
+      obj_txt_in = obj_txt_in.replaceAll(rgx.space, mkup.nbsp);
+      ST_txtPlusHasFootnotesUrlsImages ret = object_only_(obj_txt_in);
+      return ret;
+    }
+    invariant() {
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_table()(string obj_txt_in) {
+      ST_txtPlusHasFootnotesUrlsImages ret = object_notes_and_links_(obj_txt_in);
+      return ret;
+    }
+    invariant() {
+    }
+    ST_txtPlusHasFootnotesUrlsImages munge_comment()(string obj_txt_in) {
+      ST_txtPlusHasFootnotesUrlsImages ret = object_only_(obj_txt_in);
+      return ret;
+    }
+    invariant() {
+    }
+  }
+  // ↑ - object inline munge
+  // ↓ - object inline markup
+  static struct ObjInlineMarkup {
+    static auto rgx = RgxI();
+    static auto munge = ObjInlineMarkupMunge();
+    string[string] obj_txt;
+    string anchor_tag = "";
+    ST_txtAndAnchorTagPlusHasFootnotesUrlsImages obj_inline_markup_and_anchor_tags_and_misc(CMM)(
+      string[string]   obj_,
+      string           obj_key_,
+      CMM              conf_make_meta,
+      Flag!"_new_doc"  _new_doc
+    ) {
+      obj_txt["munge"]                                = obj_[obj_key_].dup;
+      obj_txt["munge"]                                = (obj_["is"].match(ctRegex!(`verse|code`)))
+      ? obj_txt["munge"]
+      : obj_txt["munge"].strip;
+      if (_new_doc) {
+        anchor_tag = "";
+      }
+      auto x = munge.init;
+      ST_txtAndAnchorTagPlusHasFootnotesUrlsImages ret;
+      ret.obj_txt                       = "";
+      ret.anchor_tag                    = "";
+      ret.has_notes_reg                 = false;
+      ret.has_notes_star                = false;
+      ret.has_notes_plus                = false;
+      ret.has_links                     = false;
+      ret.has_images_without_dimensions = false;
+      if ((obj_["is"] == "para")
+        || (obj_["is"] == "heading")
+        || (obj_["is"] == "quote")
+        || (obj_["is"] == "group")
+        || (obj_["is"] == "block")
+        || (obj_["is"] == "verse")) {
+        obj_txt["munge"]                              = (obj_txt["munge"]).inline_markup_faces;
+        obj_txt["munge"]                              = (obj_txt["munge"]).links_and_images;
+      }
+      switch (obj_["is"]) {
+      case "heading":
+        if (_new_doc) {
+          anchor_tag                                  = "";
+        }
+        obj_txt["munge"] = _configured_auto_heading_numbering_and_segment_anchor_tags(obj_txt["munge"], obj_, conf_make_meta, _new_doc);
+        obj_txt["munge"] = _make_segment_anchor_tags_if_none_provided(obj_txt["munge"], obj_["lev"], _new_doc);
+        if (auto m = obj_txt["munge"].match(rgx.heading_anchor_tag)) {
+          anchor_tag                                  = m.captures[1];
+        } else if (obj_["lev"] == "1") {
+          writeln("heading anchor tag missing: ", obj_txt["munge"]);
+        }
+        x                                             = munge.munge_heading(obj_txt["munge"], reset_note_numbers);
+        reset_note_numbers = false;
+        goto default;
+      case "para":
+        x                                             = munge.munge_para(obj_txt["munge"]);
+        goto default;
+      case "group":
+        x                                             = munge.munge_group(obj_txt["munge"]);
+        goto default;
+      case "block":
+        x                                             = munge.munge_block(obj_txt["munge"]);
+        goto default;
+      case "quote":
+        x                                             = munge.munge_quote(obj_txt["munge"]);
+        goto default;
+      case "verse":
+        x                                             = munge.munge_verse(obj_txt["munge"]);
+        goto default;
+      case "code":
+        x                                             = munge.munge_code(obj_txt["munge"]);
+        goto default;
+      case "table":
+        x                                             = munge.munge_table(obj_txt["munge"]);
+        goto default;
+      case "comment":
+        x                                             = munge.munge_comment(obj_txt["munge"]);
+        goto default;
+      case "doc_end_reset":
+        munge.initialize_note_numbers();
+        break;
+      default:
+        // para, heading, group, block, verse
+        ret.obj_txt                       = x.obj_txt;
+        ret.anchor_tag                    = anchor_tag;
+        ret.has_notes_reg                 = x.has_notes_reg;
+        ret.has_notes_star                = x.has_notes_star;
+        ret.has_notes_plus                = x.has_notes_plus;
+        ret.has_links                     = x.has_urls;
+        ret.has_images_without_dimensions = x.has_images_without_dimensions;
+        break;
+      }
+      anchor_tag = "";
+      return ret;
+    }
+    invariant() {
+    }
+    auto _clean_heading_toc_()(
+      char[] heading_toc_,
+    ) {
+     auto m = (cast(char[]) heading_toc_).matchFirst(rgx.heading);
+     heading_toc_ = (m.post).replaceAll(rgx.inline_notes_curly_gen, "");
+     return heading_toc_;
+    };
+    ST_flow_table_of_contents_gather_headings flow_table_of_contents_gather_headings(CMM)( //
+      string[string]         obj_,
+      CMM                    conf_make_meta,
+      string[string]         tag_in_seg,
+      string                 _anchor_tag,
+      string[][string]       lev4_subtoc,
+      ObjGenericComposite[]  the_document_toc_section,
+    ) {
+      ObjGenericComposite comp_obj_;
+      mixin InternalMarkup;
+      static auto mkup = InlineMarkup();
+      char[] heading_toc_                             = (obj_["substantive"].dup.strip.to!(char[]))
+        .replaceAll(rgx.inline_notes_al, "");
+      heading_toc_                                    = _clean_heading_toc_(heading_toc_);
+      auto attrib = "";
+      string toc_txt_, subtoc_txt_;
+      int[string] indent;
+      if (obj_["lev_markup_number"].to!int > 0) {
+        indent = [
+          "hang_position" : obj_["lev_markup_number"].to!int,
+          "base_position" : obj_["lev_markup_number"].to!int,
+        ];
+        toc_txt_ = format("%s%s%s%s#%s%s",
+          mkup.lnk_o,
+          heading_toc_.strip,
+          mkup.lnk_c,
+          mkup.url_o,
+          _anchor_tag,
+          mkup.url_c,
+        );
+        toc_txt_= toc_txt_.links_and_images;
+        comp_obj_                                  = set_object_generic("frontmatter", "toc", "para", "toc", toc_txt_.to!string.strip, 0);
+        comp_obj_.metainfo.identifier              = "";
+        comp_obj_.metainfo.object_number_off       = true;
+        comp_obj_.metainfo.object_number_type      = 0;
+        comp_obj_.metainfo.dummy_heading           = (an_object["dummy_heading_status"] == "t") ? true: false;
+        comp_obj_.attrib.indent_hang               = indent["hang_position"];
+        comp_obj_.attrib.indent_base               = indent["base_position"];
+        comp_obj_.attrib.bullet                    = false;
+        comp_obj_.has.inline_links                 = true;
+        the_document_toc_section                   ~= comp_obj_;
+      }
+      comp_obj_                                    = comp_obj_.init;
+      comp_obj_.metainfo.is_of_part                = "frontmatter";
+      comp_obj_.metainfo.is_of_section             = "toc";
+      comp_obj_.metainfo.is_of_type                = "para";
+      comp_obj_.metainfo.is_a                      = "toc";
+      comp_obj_.metainfo.ocn                       = 0;
+      comp_obj_.metainfo.identifier                = "";
+      comp_obj_.metainfo.object_number_off         = true;
+      comp_obj_.metainfo.object_number_type        = 0;
+      comp_obj_.metainfo.dummy_heading             = (an_object["dummy_heading_status"] == "t") ? true: false;
+      comp_obj_.attrib.bullet                      = false;
+      comp_obj_.has.inline_links                   = true;
+      switch (obj_["lev_markup_number"].to!int) {
+      case 0: .. case 3:
+        break;
+      case 4:
+        lev4_subtoc[tag_in_seg["seg_lv4"]] = [];
+        break;
+      case 5: .. case 7:
+        subtoc_txt_ = format("%s%s%s%s#%s%s",
+          mkup.lnk_o,
+          heading_toc_.strip,
+          mkup.lnk_c,
+          mkup.url_o,
+          _anchor_tag,
+          mkup.url_c,
+        );
+        lev4_subtoc[tag_in_seg["seg_lv4"]]
+        ~= links_and_images(obj_["lev_markup_number"]
+             ~ "~ " ~ subtoc_txt_.to!string.strip
+           );
+        break;
+      default:
+        break;
+      }
+      ST_flow_table_of_contents_gather_headings ret;
+      {
+        ret.the_document_toc_section = the_document_toc_section;
+        ret.lev4_subtoc              = lev4_subtoc;
+      }
+      return ret;
+    }
+    invariant() {
+    }
+  private:
+    static int[] heading_num = [ 0, 0, 0, 0 ];
+    static string heading_number_auto_composite = "";
+    static string heading_number_auto_composite_segname = "";
+    static bool[] auto_heading_numbering = [ true, true, true, true];
+    static string _configured_auto_heading_numbering_and_segment_anchor_tags(CMM)(
+      string           munge_,
+      string[string]   obj_,
+      CMM              conf_make_meta,
+      bool             _new_doc,
+    ) {
+      if (_new_doc) {
+        heading_num                         = [ 0, 0, 0, 0 ];
+        heading_number_auto_composite       = "";
+        auto_heading_numbering              = [ true, true, true, true];
+      }
+      if (conf_make_meta.make.auto_num_top_lv) {
+        if (obj_["lev_markup_number"].to!int == 0) {
+          heading_num[0]                    = 0;
+          heading_num[1]                    = 0;
+          heading_num[2]                    = 0;
+          heading_num[3]                    = 0;
+          heading_number_auto_composite     = "";
+        }
+        // auto_num_depth minimum 0
+        // (1.) default 2 (1.1.1) max 3 (1.1.1.1) implement
+        if (
+          conf_make_meta.make.auto_num_top_lv
+          > obj_["lev_markup_number"].to!uint
+        ) {
+          heading_num[1]                    = 0;
+          heading_num[2]                    = 0;
+          heading_num[3]                    = 0;
+        } else if (
+          conf_make_meta.make.auto_num_top_lv
+            == obj_["lev_markup_number"].to!uint
+        ) {
+          auto_heading_numbering[0] =
+            (munge_.match(rgx.auto_heading_numbering_off_lv1)) ? false : true;
+          if (auto_heading_numbering[0]) {
+            heading_num[0] ++;
+          }
+          heading_num[1]                    = 0;
+          heading_num[2]                    = 0;
+          heading_num[3]                    = 0;
+        } else if (
+          conf_make_meta.make.auto_num_top_lv
+            == (obj_["lev_markup_number"].to!uint - 1)
+        ) {
+          auto_heading_numbering[1] =
+            (munge_.match(rgx.auto_heading_numbering_off_lv2)) ? false : true;
+          if (auto_heading_numbering[0]
+          && auto_heading_numbering[1]) {
+            heading_num[1] ++;
+          }
+          heading_num[2]                    = 0;
+          heading_num[3]                    = 0;
+        } else if (
+          conf_make_meta.make.auto_num_top_lv
+            == (obj_["lev_markup_number"].to!uint - 2)
+        ) {
+          auto_heading_numbering[2] =
+            (munge_.match(rgx.auto_heading_numbering_off_lv3)) ? false : true;
+          if (auto_heading_numbering[0]
+          && auto_heading_numbering[1]
+          && auto_heading_numbering[2]) {
+            heading_num[2] ++;
+          }
+          heading_num[3]                    = 0;
+        } else if (
+          conf_make_meta.make.auto_num_top_lv
+            == (obj_["lev_markup_number"].to!uint - 3)
+        ) {
+          auto_heading_numbering[3] =
+            (munge_.match(rgx.auto_heading_numbering_off_lv4)) ? false : true;
+          if (auto_heading_numbering[0]
+          && auto_heading_numbering[1]
+          && auto_heading_numbering[2]
+          && auto_heading_numbering[3]) {
+            heading_num[3] ++;
+          }
+        }
+        if (auto_heading_numbering[0]) {
+          if (heading_num[3] > 0) {
+            heading_number_auto_composite
+              = (conf_make_meta.make.auto_num_depth.to!uint == 3
+                && auto_heading_numbering[3])
+              ? (format(q"┃%s.%s.%s.%s┃",
+                  heading_num[0].to!string,
+                  heading_num[1].to!string,
+                  heading_num[2].to!string,
+                  heading_num[3].to!string
+                ))
+              : "";
+          } else if (heading_num[2] > 0) {
+            heading_number_auto_composite
+              = ((conf_make_meta.make.auto_num_depth.to!uint >= 2)
+                && (conf_make_meta.make.auto_num_depth.to!uint <= 3)
+                && auto_heading_numbering[2])
+              ? (format(q"┃%s.%s.%s┃",
+                  heading_num[0].to!string,
+                  heading_num[1].to!string,
+                  heading_num[2].to!string
+                ))
+              : "";
+          } else if (heading_num[1] > 0) {
+            heading_number_auto_composite
+              = ((conf_make_meta.make.auto_num_depth.to!uint >= 1)
+                && (conf_make_meta.make.auto_num_depth.to!uint <= 3)
+                && auto_heading_numbering[1])
+              ? (format(q"┃%s.%s┃",
+                  heading_num[0].to!string,
+                  heading_num[1].to!string
+                ))
+              : "";
+          } else if (heading_num[0] > 0
+            && munge_.match(rgx.auto_heading_numbering_lv1)
+          ) {
+            heading_number_auto_composite
+              = ((conf_make_meta.make.auto_num_depth.to!uint >= 0)
+                && (conf_make_meta.make.auto_num_depth.to!uint <= 3)
+                && auto_heading_numbering[0])
+              ? (format(q"┃%s┃",
+                  heading_num[0].to!string
+                ))
+              : "";
+          } else {
+            heading_number_auto_composite = "";
+          }
+        }
+        heading_number_auto_composite_segname =
+          (heading_number_auto_composite.empty)
+            ? ""
+            : "seg_" ~ heading_number_auto_composite;
+        debug(heading_number_auto) { writeln(heading_number_auto_composite); }
+        if ((!empty(heading_number_auto_composite))
+        && (obj_["lev_markup_number"].to!uint >= conf_make_meta.make.auto_num_top_lv)) {
+          munge_ = munge_
+          .replaceFirst(rgx.heading,
+            "$1~$2 " ~ heading_number_auto_composite ~ ". ")
+          .replaceFirst(rgx.heading_marker_missing_tag,
+            "$1~" ~ heading_number_auto_composite_segname ~ " ");
+        }
+      }
+      return munge_;
+    }
+    static int heading_num_lev1 = 0;
+    static string _make_segment_anchor_tags_if_none_provided()(
+      string munge_,
+      string lev_,
+      bool   _new_doc
+    ) {
+      if (!(munge_.match(rgx.heading_anchor_tag))) {
+        if (lev_ == "A") { // (_new_doc)
+          heading_num_lev1 = 0;
+        }
+        if (munge_.match(rgx.heading_identify_anchor_tag)) {
+          if (auto m = munge_.match(rgx.heading_extract_named_anchor_tag)) {
+            munge_ = munge_.replaceFirst(
+              rgx.heading_marker_missing_tag,
+              "$1~" ~ m.captures[1].toLower ~ "_"  ~ m.captures[2] ~ " ");
+            if (auto n = munge_.match(rgx.heading_anchor_tag_plus_colon)) {
+              auto tag_remunge_ = n.captures[2]
+                .replaceAll(rgx.heading_marker_tag_has_colon, "..");
+              munge_ = munge_.replaceFirst(rgx.heading_anchor_tag_plus_colon, n.captures[1] ~ tag_remunge_ ~ " ");
+            }
+          } else if (auto m = munge_.match(rgx.heading_extract_unnamed_anchor_tag)) {
+            munge_ = munge_.replaceFirst(
+              rgx.heading_marker_missing_tag,
+              "$1~" ~ "s" ~ m.captures[1] ~ " ");
+          }
+        } else if (lev_ == "1") { // (if not successful) manufacture a unique anchor tag for lev == "1"
+          heading_num_lev1 ++;
+          munge_ = munge_.replaceFirst(
+            rgx.heading_marker_missing_tag,
+            "$1~" ~ "x" ~ heading_num_lev1.to!string ~ " ");
+        }
+      }
+      return munge_;
+    }
+  }
+  // ↑ - object inline markup
+  // ↓ - object attributes
+  struct ObjAttributes {
+    string[string] _obj_attrib;
+    string obj_attributes()(
+      string              obj_is_,
+      string              obj_raw,
+      ObjGenericComposite comp_obj_,
+    ) {
+      scope(exit) {
+        destroy(obj_is_);
+        destroy(obj_raw);
+        destroy(comp_obj_);
+      }
+      _obj_attrib["json"] ="{";
+      switch (obj_is_) {
+      case "heading":
+        _obj_attrib["json"] ~= txt_heading(obj_raw);
+        break;
+      case "para":
+        _obj_attrib["json"] ~= txt_para_and_blocks(obj_raw)
+        ~ txt_para(obj_raw);
+        break;
+      case "code":
+        _obj_attrib["json"] ~= txt_code(obj_raw);
+        break;
+      case "group":
+        _obj_attrib["json"] ~= txt_para_and_blocks(obj_raw)
+        ~ txt_group(obj_raw);
+        break;
+      case "block":
+        _obj_attrib["json"] ~= txt_para_and_blocks(obj_raw)
+        ~ txt_block(obj_raw);
+        break;
+      case "verse":
+        _obj_attrib["json"] ~= txt_verse(obj_raw);
+        break;
+      case "quote":
+        _obj_attrib["json"] ~= txt_quote(obj_raw);
+        break;
+      case "table":
+        _obj_attrib["json"] ~= txt_table(obj_raw);
+        break;
+      case "comment":
+        _obj_attrib["json"] ~= txt_comment(obj_raw);
+        break;
+      default:
+        _obj_attrib["json"] ~= txt_para(obj_raw);
+        break;
+      }
+      _obj_attrib["json"] ~= " }";
+      _obj_attrib["json"] = _set_additional_values_parse_as_json(_obj_attrib["json"], obj_is_, comp_obj_);
+      debug(structattrib) {
+        if (oa_j["is"].str() == "heading") {
+          writeln(_obj_attrib["json"]);
+          writeln(
+            "is: ", oa_j["is"].str(),
+            "; object_number: ", oa_j["object_number"].integer()
+          );
+        }
+      }
+      return _obj_attrib["json"];
+    }
+    invariant() {
+    }
+    private:
+    string _obj_attributes;
+    string txt_para_and_blocks()(string obj_txt_in) {
+      if (obj_txt_in.matchFirst(rgx.para_bullet)) {
+        _obj_attributes =" \"bullet\": \"true\","
+        ~ " \"indent_hang\": 0,"
+        ~ " \"indent_base\": 0,";
+      } else if (auto m = obj_txt_in.matchFirst(rgx.para_bullet_indent)) {
+        _obj_attributes =" \"bullet\": \"true\","
+        ~ " \"indent_hang\": " ~ m["indent"].to!string ~ ","
+        ~ " \"indent_base\": " ~ m["indent"].to!string ~ ",";
+      } else if (auto m = obj_txt_in.matchFirst(rgx.para_indent_hang)) {
+        _obj_attributes =" \"bullet\": \"false\","
+        ~ " \"indent_hang\": " ~ m["hang"].to!string ~ ","
+        ~ " \"indent_base\": " ~ m["indent"].to!string ~ ",";
+      } else if (auto m = obj_txt_in.matchFirst(rgx.para_indent)) {
+        _obj_attributes =" \"bullet\": \"false\","
+        ~ " \"indent_hang\": " ~ m["indent"].to!string ~ ","
+        ~ " \"indent_base\": " ~ m["indent"].to!string ~ ",";
+      } else {
+        _obj_attributes =" \"bullet\": \"false\","
+        ~ " \"indent_hang\": 0,"
+        ~ " \"indent_base\": 0,";
+      }
+      return _obj_attributes;
+    }
+    string txt_heading()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"para\","
+      ~ " \"is\": \"heading\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_para()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"para\","
+      ~ " \"is\": \"para\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_quote()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"block\","
+      ~ " \"is\": \"quote\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_group()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"block\","
+      ~ " \"is\": \"group\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_block()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"block\","
+      ~ " \"is\": \"block\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_verse()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"block\","
+      ~ " \"is\": \"verse\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_code()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"block\","
+      ~ " \"is\": \"code\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_table()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"content\","
+      ~ " \"of\": \"block\","
+      ~ " \"is\": \"table\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string txt_comment()(string obj_txt_in) {
+      _obj_attributes = " \"use\": \"comment\","
+      ~ " \"of\": \"comment\","
+      ~ " \"is\": \"comment\"";
+      return _obj_attributes;
+    }
+    invariant() {
+    }
+    string _set_additional_values_parse_as_json()(
+      string              _obj_attrib,
+      string              obj_is_,
+      ObjGenericComposite comp_obj_,
+    ) {
+      JSONValue oa_j = parseJSON(_obj_attrib);
+      assert(
+        (oa_j.type == JSON_TYPE.OBJECT)
+      );
+      if (obj_is_ == "heading") {
+        oa_j.object["object_number"]              = comp_obj_.metainfo.ocn;
+        oa_j.object["lev_markup_number"]          = comp_obj_.metainfo.heading_lev_markup;
+        oa_j.object["lev_collapsed_number"]       = comp_obj_.metainfo.heading_lev_collapsed;
+        oa_j.object["heading_ptr"]                = comp_obj_.ptr.heading;
+        oa_j.object["doc_object_ptr"]             = comp_obj_.ptr.doc_object;
+      }
+      oa_j.object["parent_object_number"]         = comp_obj_.metainfo.parent_ocn;
+      oa_j.object["parent_lev_markup_number"]     = comp_obj_.metainfo.parent_lev_markup;
+      _obj_attrib                                 = oa_j.toString();
+      return _obj_attrib;
+    }
+  }
+  // ↑ - object attributes
+  // ↓ - object tags
+  pure ObjGenericComposite obj_dom_structure_set_markup_tags()(
+    ObjGenericComposite  obj,
+    int[]                dom,
+    int                  lev
+  ) {
+    foreach (i; 0 .. 8) {
+      if (i < lev) {
+        if (dom[i] == DomTags.open
+           || dom[i] == DomTags.close_and_open
+        ) {
+          dom[i] = DomTags.open_still;
+        } else if (dom[i] == DomTags.close) {
+          dom[i] = DomTags.none;
+        }
+      } else if (i == lev) {
+        if (lev  == 0
+          && dom[i] == DomTags.open_still
+        ) {
+          dom[i] = DomTags.close;
+        } else if (dom[i] == DomTags.open
+          || dom[i] == DomTags.open_still
+          || dom[i] == DomTags.close_and_open
+        ) {
+          dom[i] = DomTags.close_and_open;
+        } else {
+          dom[i] = DomTags.open;
+        }
+      } else if (i > lev) {
+        if (dom[i] == DomTags.close) {
+          dom[i] = DomTags.none;
+        } else if (dom[i] == DomTags.open
+          || dom[i] == DomTags.open_still
+          || dom[i] == DomTags.close_and_open
+        ) {
+          dom[i] = DomTags.close;
+        }
+      }
+    }
+    debug(dom_magic_numbers) { writeln("marked up: ", lev, ": ", dom); }
+    obj.metainfo.dom_structure_markedup_tags_status = dom.dup;
+    return obj;
+  }
+  pure ObjGenericComposite obj_dom_set_collapsed_tags()(
+    ObjGenericComposite  obj,
+    int[]                dom,
+    int                  lev
+  ) {
+    foreach (i; 0 .. 8) {
+      if (i < lev) {
+        if (dom[i] == DomTags.open
+           || dom[i] == DomTags.close_and_open
+        ) {
+          dom[i] = DomTags.open_still;
+        } else if (dom[i] == DomTags.close) {
+          dom[i] = DomTags.none;
+        }
+      } else if (i == lev) {
+        if (lev  == 0
+          && dom[i] == DomTags.open_still
+        ) {
+          dom[i] = DomTags.close;
+        } else if (dom[i] == DomTags.open
+          || dom[i] == DomTags.open_still
+          || dom[i] == DomTags.close_and_open
+        ) {
+          dom[i] = DomTags.close_and_open;
+        } else {
+          dom[i] = DomTags.open;
+        }
+      } else if (i > lev) {
+        if (dom[i] == DomTags.close) {
+          dom[i] = DomTags.none;
+        } else if (dom[i] == DomTags.open
+          || dom[i] == DomTags.open_still
+          || dom[i] == DomTags.close_and_open
+        ) {
+          dom[i] = DomTags.close;
+        }
+      }
+    }
+    debug(dom_magic_numbers) { writeln("collapsed: ", lev, ": ", dom); }
+    obj.metainfo.dom_structure_collapsed_tags_status = dom.dup;
+    return obj;
+  }
+  // ↑ - object tags
+  // ↓ - table of contents
+  @system ObjGenericComposite[] backmatter_gather_table_of_contents(
+    ObjGenericComposite[] the_document_endnotes_section,
+    ObjGenericComposite[] the_document_glossary_section,
+    ObjGenericComposite[] the_document_bibliography_section,
+    ObjGenericComposite[] the_document_bookindex_section,
+    ObjGenericComposite[] the_document_blurb_section,
+  ) {
+    ObjGenericComposite[] toc_section_backmatter;
+    string toc_txt_;
+    static auto mkup = InlineMarkup();
+    ObjGenericComposite   comp_obj_;
+    int[string] indent = [
+      "hang_position" : 1,
+      "base_position" : 1,
+    ];
+    comp_obj_                                          = set_object_generic("frontmatter", "toc", "para", "toc", "", 0);
+    comp_obj_.metainfo.identifier                      = "";
+    comp_obj_.metainfo.object_number_off               = true;
+    comp_obj_.metainfo.object_number_type              = 0;
+    comp_obj_.attrib.indent_hang                       = indent["hang_position"];
+    comp_obj_.attrib.indent_base                       = indent["base_position"];
+    comp_obj_.attrib.bullet                            = false;
+    if (the_document_endnotes_section.length > 1) {
+      toc_txt_ = format("%s%s%s%s#%s%s",
+        mkup.lnk_o,
+        "Endnotes",
+        mkup.lnk_c,
+        mkup.url_o,
+        "endnotes",
+        mkup.url_c,
+      );
+      toc_txt_= toc_txt_.links_and_images;
+      comp_obj_.text                                   = toc_txt_.to!string.strip;
+      comp_obj_.has.inline_links                       = true;
+      toc_section_backmatter                           ~= comp_obj_;
+    }
+    if (the_document_glossary_section.length > 1) {
+      toc_txt_ = format("%s%s%s%s#%s%s",
+        mkup.lnk_o,
+        "Glossary",
+        mkup.lnk_c,
+        mkup.url_o,
+        "glossary",
+        mkup.url_c,
+      );
+      toc_txt_= toc_txt_.links_and_images;
+      comp_obj_.text                                   = toc_txt_.to!string.strip;
+      comp_obj_.has.inline_links                       = true;
+      toc_section_backmatter                           ~= comp_obj_;
+    }
+    if (the_document_bibliography_section.length > 1){
+      toc_txt_ = format("%s%s%s%s#%s%s",
+        mkup.lnk_o,
+        "Bibliography",
+        mkup.lnk_c,
+        mkup.url_o,
+        "bibliography",
+        mkup.url_c,
+      );
+      toc_txt_= toc_txt_.links_and_images;
+      comp_obj_.text                                   = toc_txt_.to!string.strip;
+      comp_obj_.has.inline_links                       = true;
+      toc_section_backmatter                           ~= comp_obj_;
+    }
+    if (the_document_bookindex_section.length > 1) {
+      toc_txt_ = format("%s%s%s%s#%s%s",
+        mkup.lnk_o,
+        "Book Index",
+        mkup.lnk_c,
+        mkup.url_o,
+        "bookindex",
+        mkup.url_c,
+      );
+      toc_txt_= toc_txt_.links_and_images;
+      comp_obj_.text                                   = toc_txt_.to!string.strip;
+      comp_obj_.has.inline_links                       = true;
+      toc_section_backmatter                           ~= comp_obj_;
+    }
+    if (the_document_blurb_section.length > 1) {
+      toc_txt_ = format("%s%s%s%s#%s%s",
+        mkup.lnk_o,
+        "Blurb",
+        mkup.lnk_c,
+        mkup.url_o,
+        "blurb",
+        mkup.url_c,
+      );
+      toc_txt_= toc_txt_.links_and_images;
+      comp_obj_.has.inline_links                       = true;
+      comp_obj_.text                                   = toc_txt_.to!string.strip;
+      toc_section_backmatter                           ~= comp_obj_;
+    }
+    debug(toc) {
+      writefln( "%s %s", __LINE__,);
+      foreach (toc_linked_heading; toc_section_backmatter) {
+        writeln(mkup.indent_by_spaces_provided(toc_linked_heading.attrib.indent_hang), toc_linked_heading.text);
+      }
+    }
+    return toc_section_backmatter;
+  }
+  // ↑ - table of contents
+  // ↓ - endnotes
+  struct NotesSection {
+    string[string] object_notes;
+    int previous_count;
+    int mkn;
+    static auto rgx = RgxI();
+    private auto gather_notes_for_endnote_section(
+      ObjGenericComposite[] contents_am,
+      string[string]        tag_in_seg,
+      int                   cntr,
+    ) {
+      assert((contents_am[cntr].metainfo.is_a == "para")
+      || (contents_am[cntr].metainfo.is_a     == "heading")
+      || (contents_am[cntr].metainfo.is_a     == "quote")
+      || (contents_am[cntr].metainfo.is_a     == "group")
+      || (contents_am[cntr].metainfo.is_a     == "block")
+      || (contents_am[cntr].metainfo.is_a     == "verse"));
+      assert(cntr >= previous_count);
+      assert(
+        (contents_am[cntr].text).match(
+        rgx.inline_notes_al_all_note)
+      );
+      mixin InternalMarkup;
+      previous_count = cntr;
+      static auto mkup = InlineMarkup();
+      static auto munge = ObjInlineMarkupMunge();
+      foreach(m;
+        (contents_am[cntr].text).matchAll(
+          rgx.inline_notes_al_special_char_note)
+      ) {
+        debug(endnotes_build) { writeln(
+            "{", mkup.ff_i, mkup.superscript, mkup.ff_o, m["char"], ".", mkup.ff_c, mkup.superscript, "}"
+            ~ mkup.mark_internal_site_lnk,
+            tag_in_seg["seg_lv4"],
+              ".fnSuffix#noteref_\n  ", m["char"], " ",
+            m["note"]); // sometimes need segment name (segmented html & epub)
+        }
+        // you need anchor for segments at this point ->
+        object_notes["anchor"] ~= "note_" ~ m["char"] ~ "』";
+        object_notes["notes"]  ~= (tag_in_seg["seg_lv4"].empty)
+        ? (links_and_images(
+            "{" ~ mkup.ff_i ~ mkup.superscript  ~ mkup.ff_o ~ m["char"] ~ "." ~ mkup.ff_c  ~ mkup.superscript  ~ "}#noteref_"
+            ~ m["char"]) ~ " "
+            ~ m["note"] ~ "』"
+          )
+        : (links_and_images(
+            "{" ~ mkup.ff_i ~ mkup.superscript ~ mkup.ff_o ~ m["char"] ~ "." ~ mkup.ff_c  ~ mkup.superscript ~ "}"
+             ~ mkup.mark_internal_site_lnk
+             ~ tag_in_seg["seg_lv4"]
+             ~ ".fnSuffix#noteref_"
+             ~ m["char"]) ~ " "
+             ~ m["note"] ~ "』"
+          );
+      }
+      foreach(m;
+        (contents_am[cntr].text).matchAll(
+          rgx.inline_notes_al_regular_number_note)
+      ) {
+        debug(endnotes_build) { writeln(
+            "{", mkup.ff_i, mkup.superscipt, mkup.ff_o, m["num"], ".", mkup.ff_c, mkup.superscipt, "}"
+            ~ mkup.mark_internal_site_lnk,
+            tag_in_seg["seg_lv4"],
+              ".fnSuffix#noteref_\n  ", m["num"], " ",
+            m["note"]); // sometimes need segment name (segmented html & epub)
+        }
+        // you need anchor for segments at this point ->
+        object_notes["anchor"] ~= "note_" ~ m["num"] ~ "』";
+        object_notes["notes"]  ~= (tag_in_seg["seg_lv4"].empty)
+        ? (links_and_images(
+            "{" ~ mkup.ff_i ~ mkup.superscript  ~ mkup.ff_o ~ m["num"] ~ "." ~ mkup.ff_c  ~ mkup.superscript  ~ "}#noteref_"
+            ~ m["num"]) ~ " "
+            ~ m["note"] ~ "』"
+          )
+        : (links_and_images(
+            "{" ~ mkup.ff_i ~ mkup.superscript ~ mkup.ff_o ~ m["num"] ~ "." ~ mkup.ff_c  ~ mkup.superscript ~ "}"
+             ~ mkup.mark_internal_site_lnk
+             ~ tag_in_seg["seg_lv4"]
+             ~ ".fnSuffix#noteref_"
+             ~ m["num"]) ~ " "
+             ~ m["note"] ~ "』"
+          );
+      }
+      return object_notes;
+    }
+    private auto gathered_notes() {
+      string[][string] endnotes_;
+      if (object_notes.length > 1) {
+        endnotes_["notes"] = (object_notes["notes"].split(rgx.break_string))[0..$-1];
+        endnotes_["anchor"] = (object_notes["anchor"].split(rgx.break_string))[0..$-1];
+      } else {
+        endnotes_["notes"] = [];
+        endnotes_["anchor"] = [];
+      }
+      return endnotes_;
+    }
+    private ST_endnotes backmatter_endnote_objects(O)(
+      OCNset         obj_cite_digits,
+      O              opt_action,
+    ) {
+      mixin spineNode;
+      ObjGenericComposite[] the_document_endnotes_section;
+      auto endnotes_ = gathered_notes();
+      string type_is;
+      string lev, lev_markup_number, lev_collapsed_number;
+      string attrib;
+      int[string] indent;
+      ObjGenericComposite comp_obj_;
+      if ((endnotes_["notes"].length > 0)
+      && (opt_action.backmatter && opt_action.section_endnotes)) {
+        {
+          comp_obj_                                     = set_object_heading("lev1", "backmatter", "endnotes", "Endnotes");
+          comp_obj_.metainfo.identifier                 = "";
+          comp_obj_.metainfo.dummy_heading              = false;
+          comp_obj_.metainfo.object_number_off          = false;
+          comp_obj_.metainfo.object_number_type         = 0;
+          comp_obj_.tags.segment_anchor_tag_epub        = "_part_endnotes";
+          comp_obj_.tags.anchor_tag_html                = comp_obj_.tags.segment_anchor_tag_epub;
+          comp_obj_.tags.in_segment_html                = "endnotes";
+          comp_obj_.tags.anchor_tags                    = ["section_endnotes"];
+          the_document_endnotes_section                 ~= comp_obj_;
+          tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+          tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+          ++mkn;
+        }
+        {
+          comp_obj_                                     = set_object_heading("lev4", "backmatter", "endnotes", "Endnotes");
+          comp_obj_.metainfo.identifier                 = "";
+          comp_obj_.metainfo.dummy_heading              = true;
+          comp_obj_.metainfo.object_number_off          = true;
+          comp_obj_.metainfo.object_number_type         = 0;
+          comp_obj_.tags.segment_anchor_tag_epub        = "endnotes";
+          comp_obj_.tags.anchor_tag_html                = comp_obj_.tags.segment_anchor_tag_epub;
+          comp_obj_.tags.in_segment_html                = comp_obj_.tags.anchor_tag_html;
+          comp_obj_.tags.anchor_tags                    = ["endnotes"];
+          the_document_endnotes_section                 ~= comp_obj_;
+          tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+          tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+          ++mkn;
+        }
+      } else {
+        comp_obj_                                       = set_object_heading("lev1", "empty", "empty", "(skip) there are no Endnotes");
+        comp_obj_.metainfo.identifier                   = "";
+        comp_obj_.metainfo.dummy_heading                = true;
+        comp_obj_.metainfo.object_number_off            = true;
+        comp_obj_.metainfo.object_number_type           = 0;
+        the_document_endnotes_section                   ~= comp_obj_;
+      }
+      if (opt_action.backmatter && opt_action.section_endnotes) {
+        ObjGenericComposite comp_obj_endnote_;
+        comp_obj_endnote_                                       = set_object_generic("backmatter", "endnotes", "para", "endnote", "", 0);
+        comp_obj_endnote_.metainfo.identifier                   = "";
+        // comp_obj_.metainfo.dummy_heading                     = false;
+        comp_obj_.metainfo.object_number_off                    = true;
+        comp_obj_.metainfo.object_number_type                   = 0;
+        comp_obj_endnote_.attrib.indent_hang                    = 0;
+        comp_obj_endnote_.attrib.indent_base                    = 0;
+        comp_obj_endnote_.attrib.bullet                         = false;
+        foreach (i, endnote; endnotes_["notes"]) {
+          auto     m                                            = endnote.matchFirst(rgx.note_ref);
+          string   notenumber                                   = m["ref"].to!string;
+          string   anchor_tag                                   = "note_" ~ notenumber;
+          comp_obj_endnote_.tags.anchor_tags                    = [ endnotes_["anchor"][i] ];
+          comp_obj_endnote_.has.inline_links                    = true;
+          comp_obj_endnote_.text                                = endnote.inline_markup_faces.strip;
+          the_document_endnotes_section                         ~= comp_obj_endnote_;
+        }
+      }
+      ST_endnotes ret;
+      {
+        ret.endnotes = the_document_endnotes_section;
+        ret.ocn      = obj_cite_digits;
+      }
+      return ret;
+    }
+  }
+  // ↑ - endnotes
+  // ↓ - section book index
+  @system ST_flow_book_index flow_book_index_(B)(
+    char[]          line,
+    string[string]  an_object,
+    string          book_idx_tmp,
+    uint[string]    pith,
+    B               opt_action,
+  ) {
+    static auto rgx = RgxI();
+    if (auto m = line.match(rgx.book_index_item)) {                                   // match book_index
+      debug(bookindexmatch) { writefln(
+          "* [bookindex] %s\n",
+          m["bookindex"].to!string,
+        );
+      }
+      an_object["bookindex_nugget"] = m.captures[1].to!string;
+    } else if (auto m = line.match(rgx.book_index_item_open))  {                      // match open book_index
+      pith["section"] = eN.sect.book_index;
+      if (opt_action.backmatter && opt_action.section_bookindex) {
+        book_idx_tmp = m.captures[1].to!string;
+        debug(bookindexmatch) { writefln( "* [bookindex] %s\n", book_idx_tmp,); }
+      }
+    } else if (pith["section"] == eN.sect.book_index)  {                    // book_index flag set
+      if (auto m = line.match(rgx.book_index_item_close))  {
+        pith["section"] = eN.sect.unset;
+        if (opt_action.backmatter
+        && opt_action.section_bookindex) {
+          an_object["bookindex_nugget"] = book_idx_tmp ~ m.captures[1].to!string;
+          debug(bookindexmatch) { writefln( "* [bookindex] %s\n", book_idx_tmp,); }
+        }
+        book_idx_tmp = "";
+      } else {
+        if (opt_action.backmatter
+        && opt_action.section_bookindex) {
+          book_idx_tmp ~= line;
+        }
+      }
+    }
+    ST_flow_book_index ret;
+    {
+      ret.this_object    = an_object;
+      ret.pith           = pith;
+      ret.book_idx_tmp   = book_idx_tmp;
+    }
+    return ret;
+  }
+  struct BookIndexNuggetHash {
+    string main_term, sub_term, sub_term_bits;
+    int object_number_offset, object_number_endpoint;
+    string[] object_numbers;
+    string[][string][string] bi_hash_nugget;
+    string[] bi_main_terms_split_arr;
+    string[][string][string] bookindex_nugget_hash(S)(
+      string bookindex_section,
+      OCNset obj_cite_digits,
+      S      tag_in_seg,
+    ) {
+      debug(asserts) { static assert(is(typeof(obj_cite_digits.object_number) == int)); }
+      debug(bookindexraw) {
+        if (!bookindex_section.empty) {
+          writeln(
+            "* [bookindex] ",
+            "[", obj_cite_digits.object_number.to!string, ": ", tag_in_seg["seg_lv4"], "] ", bookindex_section,
+            "  - - - ",
+            "[", obj_cite_digits.object_number.to!string, "] ", bookindex_section
+          );
+        }
+      }
+      static auto rgx = RgxI();
+      if (!bookindex_section.empty) {
+        auto bi_main_terms_split_arr
+          = bookindex_section.split(rgx.bi_main_terms_split);
+        foreach (bi_main_terms_content; bi_main_terms_split_arr) {
+          auto bi_main_term_and_rest
+            = bi_main_terms_content.split(rgx.bi_main_term_plus_rest_split);
+          if (auto m = bi_main_term_and_rest[0].match(
+            rgx.bi_term_and_object_numbers_match)
+          ) {
+            main_term = m.captures[1].strip;
+            object_number_offset = m.captures[2].to!int;
+            object_number_endpoint = (obj_cite_digits.object_number + object_number_offset);
+            object_numbers ~= (obj_cite_digits.object_number.to!string
+            ~ "-" ~ object_number_endpoint.to!string);
+          } else {
+            main_term = bi_main_term_and_rest[0].strip;
+            object_numbers ~= obj_cite_digits.object_number.to!string;
+          }
+          bi_hash_nugget[main_term]["_a"] ~= object_numbers;
+          object_numbers = null;
+          if (bi_main_term_and_rest.length > 1) {
+            auto bi_sub_terms_split_arr
+              = bi_main_term_and_rest[1].split(
+                rgx.bi_sub_terms_plus_object_number_offset_split
+              );
+            foreach (sub_terms_bits; bi_sub_terms_split_arr) {
+              if (auto m = sub_terms_bits.match(rgx.bi_term_and_object_numbers_match)) {
+                sub_term = m.captures[1].strip;
+                object_number_offset = m.captures[2].to!int;
+                object_number_endpoint = (obj_cite_digits.object_number + object_number_offset);
+                object_numbers ~= (obj_cite_digits.object_number.to!string
+                ~ " - " ~ object_number_endpoint.to!string);
+              } else {
+                sub_term = sub_terms_bits.strip;
+                object_numbers ~= obj_cite_digits.object_number.to!string;
+              }
+              if (!empty(sub_term)) {
+                bi_hash_nugget[main_term][sub_term] ~= object_numbers;
+              }
+              object_numbers = null;
+            }
+          }
+        }
+      }
+      return bi_hash_nugget;
+    }
+    invariant() {
+    }
+  }
+  struct BookIndexReportIndent {
+    int mkn, skn;
+    void bookindex_report_indented()(
+      string[][string][string] bookindex_unordered_hashes
+    ) {
+      auto mainkeys
+        = bookindex_unordered_hashes.byKey.array.sort().release;
+      foreach (mainkey; mainkeys) {
+        debug(bookindex1) { writeln(mainkey); }
+        auto subkeys
+          = bookindex_unordered_hashes[mainkey].byKey.array.sort().release;
+        foreach (subkey; subkeys) {
+          debug(bookindex1) {
+            writeln("  ", subkey);
+            writeln("    ", to!string(
+              bookindex_unordered_hashes[mainkey][subkey]
+            ));
+          }
+          ++skn;
+        }
+        ++mkn;
+      }
+    }
+  }
+  struct BookIndexReportSection {
+    int  mkn, skn;
+    static auto rgx = RgxI();
+    static auto munge = ObjInlineMarkupMunge();
+    void bookindex_write_section()(
+      string[][string][string] bookindex_unordered_hashes
+    ) {
+      auto mainkeys =
+        bookindex_unordered_hashes.byKey.array
+        .sort!("toUpper(a) < toUpper(b)", SwapStrategy.stable).release;
+      foreach (mainkey; mainkeys) {
+        write("_0_1 ⑆!┨", mainkey, "┣! ");
+        foreach (ref_; bookindex_unordered_hashes[mainkey]["_a"]) {
+          auto go = ref_.replaceAll(rgx.book_index_go, "$1");
+          write(" {", ref_, "}#", go, ", ");
+        }
+        writeln(" \\\\");
+        bookindex_unordered_hashes[mainkey].remove("_a");
+        auto subkeys =
+          bookindex_unordered_hashes[mainkey].byKey.array
+          .sort!("toUpper(a) < toUpper(b)", SwapStrategy.stable).release;
+        foreach (subkey; subkeys) {
+          write("  ", subkey, ", ");
+          foreach (ref_; bookindex_unordered_hashes[mainkey][subkey]) {
+            auto go = ref_.replaceAll(rgx.book_index_go, "$1");
+            write(" {", ref_, "}#", go, ", ");
+          }
+          writeln(" \\\\");
+          ++skn;
+        }
+        ++mkn;
+      }
+    }
+    @system ST_bookindex backmatter_bookindex_build_abstraction_section(B)(
+      string[][string][string] bookindex_unordered_hashes,
+      OCNset                   obj_cite_digits,
+      B                        opt_action,
+    ) {
+      debug(asserts) { static assert(is(typeof(obj_cite_digits.object_number) == int)); }
+      mixin spineNode;
+      mixin InternalMarkup;
+      static auto mkup = InlineMarkup();
+      string type_is;
+      string lev;
+      int heading_lev_markup, heading_lev_collapsed;
+      string attrib;
+      int[string] indent;
+      auto mainkeys =
+        bookindex_unordered_hashes.byKey.array
+        .sort!("toUpper(a) < toUpper(b)", SwapStrategy.stable).release;
+      ObjGenericComposite[] bookindex_section;
+      ObjGenericComposite comp_obj_;
+      auto node_para_int_ = node_metadata_para_int;
+      auto node_para_str_ = node_metadata_para_str;
+      if ((mainkeys.length > 0)
+      && (opt_action.backmatter
+      && opt_action.section_bookindex)) {
+        string bi_tmp;
+        string[] bi_tmp_tags;
+        {
+          comp_obj_                                     =  set_object_heading("lev1", "backmatter", "bookindex", "Book Index");
+          comp_obj_.metainfo.identifier                 = "";
+          comp_obj_.metainfo.dummy_heading              = false;
+          comp_obj_.metainfo.object_number_off          = false;
+          comp_obj_.metainfo.object_number_type         = 0;
+          comp_obj_.tags.segment_anchor_tag_epub        = "_part_book_index";
+          comp_obj_.tags.anchor_tag_html                = comp_obj_.tags.segment_anchor_tag_epub;
+          comp_obj_.tags.in_segment_html                = "bookindex";
+          comp_obj_.tags.anchor_tags                    = ["section_bookindex"];
+          comp_obj_.has.inline_links                    = true;
+          bookindex_section                             ~= comp_obj_;
+          tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+          tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+          ++mkn;
+        }
+        {
+          comp_obj_                                     = set_object_heading("lev4", "backmatter", "bookindex", "Index");
+          comp_obj_.metainfo.identifier                 = "";
+          comp_obj_.metainfo.dummy_heading              = true;
+          comp_obj_.metainfo.object_number_off          = true;
+          comp_obj_.metainfo.object_number_type         = 0;
+          comp_obj_.tags.segment_anchor_tag_epub        = "bookindex";
+          comp_obj_.tags.anchor_tag_html                = comp_obj_.tags.segment_anchor_tag_epub;
+          comp_obj_.tags.in_segment_html                = comp_obj_.tags.anchor_tag_html;
+          comp_obj_.metainfo.heading_lev_collapsed      = 2;
+          comp_obj_.has.inline_links                    = false;
+          comp_obj_.tags.anchor_tags                    = ["bookindex"];
+          bookindex_section                             ~= comp_obj_;
+          tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+          tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+          ++mkn;
+        }
+        import std.array : appender;
+        auto buffer = appender!(char[])();
+        string[dchar] transTable = [' ' : "_"];
+        foreach (mainkey; mainkeys) {
+          bi_tmp_tags = [""];
+          bi_tmp = mkup.ff_i ~ mkup.bold ~ mkup.ff_o ~ mainkey ~ mkup.ff_c ~ mkup.bold ~ " ";
+          buffer.clear();
+          bi_tmp_tags ~= translate(mainkey, transTable);
+          auto bkidx_lnk(string locs) {
+            string markup = "";
+            if (auto m = locs.matchFirst(rgx.book_index_go)) {
+              markup
+                = links_and_images("{ " ~ m["link"] ~ " }"
+                ~ "#" ~ m["ocn"] ~ ", ");
+            } else {
+              writeln(__LINE__, ": ", locs);
+            }
+            return markup;
+          }
+          foreach (ref_; bookindex_unordered_hashes[mainkey]["_a"]) {
+            bi_tmp ~= bkidx_lnk(ref_);
+          }
+          bi_tmp ~= " \\\\\n    ";
+          bookindex_unordered_hashes[mainkey].remove("_a");
+          auto subkeys =
+            bookindex_unordered_hashes[mainkey].byKey.array
+            .sort!("toUpper(a) < toUpper(b)", SwapStrategy.stable).release;
+          foreach (subkey; subkeys) {
+            bi_tmp ~= subkey ~ ", ";
+            buffer.clear();
+            bi_tmp_tags ~= translate(subkey, transTable);
+            foreach (ref_; bookindex_unordered_hashes[mainkey][subkey]) {
+              bi_tmp ~= bkidx_lnk(ref_);
+            }
+            bi_tmp ~= " \\\\\n    ";
+            ++skn;
+          }
+          bi_tmp                                             = bi_tmp.replaceFirst(rgx.trailing_linebreak, "");
+          comp_obj_                                          = set_object_generic("backmatter", "bookindex", "para", "bookindex", bi_tmp.to!string.strip, 0);
+          comp_obj_.metainfo.identifier                      = "";
+          comp_obj_.metainfo.object_number_off               = true;
+          comp_obj_.metainfo.object_number_type              = 0;
+          comp_obj_.tags.anchor_tags                         = bi_tmp_tags;
+          comp_obj_.attrib.indent_hang                       = 0;
+          comp_obj_.attrib.indent_base                       = 1;
+          comp_obj_.attrib.bullet                            = false;
+          comp_obj_.has.inline_links                         = true;
+          comp_obj_.text                                     = bi_tmp.to!string.strip;
+          bookindex_section                                  ~= comp_obj_;
+          ++mkn;
+        }
+      } else {                              // no book index, (figure out what to do here)
+        comp_obj_                                       = set_object_heading("lev1", "backmatter", "bookindex", "(skip) there is no Book Index");
+        comp_obj_.metainfo.identifier                   = "";
+        comp_obj_.metainfo.dummy_heading                = true;
+        comp_obj_.metainfo.object_number_off            = true;
+        bookindex_section                               ~= comp_obj_;
+      }
+      ST_bookindex ret;
+      {
+        ret.bookindex = bookindex_section;
+        ret.ocn       = obj_cite_digits;
+      }
+      return ret;
+    }
+  }
+  // ↑ - section book index
+  // ↓ - section glossary
+  // ↓ build
+  ST_the_section build_the_glossary_section(
+    char[]                 line,             // line is immutable, not necessary to return unchanged
+    uint[string]           pith,             // double check, should not be necessary to pass pith
+    string[string][string] tag_assoc,        // only for headings: html & epub
+  ) {
+    static auto rgx = RgxI();
+    ObjGenericComposite comp_obj_;
+    ObjGenericComposite[] add_to_current_document_section;
+    indent = [
+      "hang_position" : 0,
+      "base_position" : 0,
+    ];
+    bullet = false;
+    pith["txt_is"]           = eN.txt_is.para;
+    line_occur["para"]       = eN.bi.off;
+    an_object_key            = "glossary_nugget";
+    ST_the_section ret;
+    if (line.matchFirst(rgx.heading_glossary)) {
+      {
+        comp_obj_                                = set_object_heading("lev1", "backmatter", "glossary", "Glossary");
+        comp_obj_.metainfo.identifier            = "";
+        comp_obj_.metainfo.dummy_heading         = false;
+        comp_obj_.metainfo.object_number_off     = false;
+        comp_obj_.metainfo.object_number_type    = 0;
+        comp_obj_.tags.segment_anchor_tag_epub   = "_part_glossary";
+        comp_obj_.tags.anchor_tag_html           = comp_obj_.tags.segment_anchor_tag_epub;
+        comp_obj_.tags.in_segment_html           = "glossary";
+        comp_obj_.tags.anchor_tags               = ["section_glossary"];
+        comp_obj_.metainfo.dom_structure_markedup_tags_status  = [ 1, 1, 0, 0, 0, 0, 0, 0];
+        comp_obj_.metainfo.dom_structure_collapsed_tags_status = [ 1, 1, 0, 0, 0, 0, 0, 0];
+        add_to_current_document_section           ~= comp_obj_; //
+        tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+        tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+      } {
+        comp_obj_                                = set_object_heading("lev4", "backmatter", "glossary", "Glossary");
+        comp_obj_.metainfo.identifier            = "";
+        comp_obj_.metainfo.dummy_heading         = true;
+        comp_obj_.metainfo.object_number_off     = true;
+        comp_obj_.metainfo.object_number_type    = 0;
+        comp_obj_.tags.segment_anchor_tag_epub   = "glossary";
+        comp_obj_.tags.anchor_tag_html           = comp_obj_.tags.segment_anchor_tag_epub;
+        comp_obj_.tags.in_segment_html           = comp_obj_.tags.anchor_tag_html;
+        comp_obj_.metainfo.heading_lev_collapsed = 2;
+        comp_obj_.tags.anchor_tags               = ["glossary"];
+        add_to_current_document_section          ~= comp_obj_; //
+        tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+        tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+        pith["ocn"] = eN.ocn.on;
+      }
+      {
+        ret.comp_section_obj         ~= add_to_current_document_section;
+        ret.pith                     = pith;
+        ret.tag_assoc                = tag_assoc; // only for headings: html & epub
+      }
+    } else { // para
+      {
+        auto _get = line.flow_para_match_(an_object, an_object_key, indent, bullet, pith, line_occur);
+        {
+          an_object     = _get.this_object;
+          an_object_key = _get.this_object_key;
+          pith          = _get.pith;
+          indent        = _get.indent;
+          bullet        = _get.bullet;
+          line_occur    = _get.line_occur;
+        }
+      }
+      comp_obj_                               = set_object_generic("backmatter", "glossary", "para", "glossary", links_and_images(line.to!string.strip).replaceFirst(rgx.para_attribs, ""), 0);
+      comp_obj_.metainfo.identifier           = "";
+      comp_obj_.metainfo.object_number_off    = true;
+      comp_obj_.metainfo.object_number_type   = 0;
+      comp_obj_.attrib.indent_hang            = indent["hang_position"];
+      comp_obj_.attrib.indent_base            = indent["base_position"];
+      comp_obj_.attrib.bullet                 = bullet;
+      add_to_current_document_section         ~= comp_obj_; //
+      pith["ocn"]                             = eN.ocn.on;
+      {
+        ret.comp_section_obj = add_to_current_document_section;
+        ret.pith             = pith;
+        ret.tag_assoc        = tag_assoc; // NO CHANGE here, only for headings: html & epub
+      }
+    }
+    return ret;
+  }
+  // ↑ - section glossary
+  // ↓ - section bibliography
+  @system ST_biblio_section backmatter_make_the_bibliography_section()(
+    string[]     biblio_unsorted_incomplete,
+    JSONValue[]  bib_arr_json,
+  ) {
+    Bibliography biblio = Bibliography();
+    ObjGenericComposite comp_obj_;
+    static auto mkup = InlineMarkup();
+    ST_flow_bibliography _get = biblio.flow_bibliography_(biblio_unsorted_incomplete, bib_arr_json);
+    JSONValue[] biblio_ordered;
+    biblio_ordered            = _get.biblio_sorted;
+    if (biblio_ordered.length > 0) {
+      {
+        comp_obj_                                 = set_object_heading("lev1", "backmatter", "bibliography", "Bibliography");
+        comp_obj_.metainfo.identifier             = "";
+        comp_obj_.metainfo.dummy_heading          = false;
+        comp_obj_.metainfo.object_number_off      = false;
+        comp_obj_.metainfo.object_number_type     = 0;
+        comp_obj_.tags.segment_anchor_tag_epub    = "_part_bibliography";
+        comp_obj_.tags.anchor_tag_html            = comp_obj_.tags.segment_anchor_tag_epub;
+        comp_obj_.tags.in_segment_html            = "bibliography";
+        comp_obj_.tags.anchor_tags                = ["section_bibliography"];
+        comp_obj_.metainfo.dom_structure_markedup_tags_status  = [ 1, 1, 0, 0, 0, 0, 0, 0];
+        comp_obj_.metainfo.dom_structure_collapsed_tags_status = [ 1, 1, 0, 0, 0, 0, 0, 0];
+        the_document_bibliography_section         ~= comp_obj_;
+        tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+        tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+      }
+      {
+        comp_obj_                                 = set_object_heading("lev4", "backmatter", "bibliography", "Bibliography");
+        comp_obj_.metainfo.identifier             = "";
+        comp_obj_.metainfo.dummy_heading          = true;
+        comp_obj_.metainfo.object_number_off      = true;
+        comp_obj_.metainfo.object_number_type     = 0;
+        comp_obj_.tags.segment_anchor_tag_epub    = "bibliography";
+        comp_obj_.tags.anchor_tag_html            = comp_obj_.tags.segment_anchor_tag_epub;
+        comp_obj_.tags.in_segment_html            = comp_obj_.tags.anchor_tag_html;
+        comp_obj_.tags.anchor_tags                = ["bibliography"];
+        the_document_bibliography_section         ~= comp_obj_;
+        tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+        tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+      }
+      {
+        string out_;
+        foreach (entry; biblio_ordered) {
+          out_ = format("%s \"%s\"%s%s%s%s%s%s%s%s%s.",
+            ((entry["author"].str.empty) ? entry["editor"].str : entry["author"].str),
+            entry["fulltitle"].str,
+            ((entry["journal"].str.empty) ? "" : ", " ~ mkup.ff_i ~ mkup.italic ~ mkup.ff_o ~ entry["journal"].str ~ mkup.ff_c ~ mkup.italic),
+            ((entry["volume"].str.empty) ? "" : ", " ~ entry["volume"].str),
+            ((entry["in"].str.empty) ? "" : ", " ~ entry["in"].str),
+            ((!(entry["author"].str.empty) && (!(entry["editor"].str.empty))) ? entry["editor"].str : ""),
+            ", " ~ entry["year"].str,
+            ((entry["pages"].str.empty) ? "" : ", " ~ entry["pages"].str),
+            ((entry["publisher"].str.empty) ? "" : ", " ~ entry["publisher"].str),
+            ((entry["place"].str.empty) ? "" : ", " ~ entry["place"].str),
+            ((entry["url"].str.empty) ? "" : ", [" ~ entry["url"].str ~ "]"),
+          );
+          comp_obj_                                   = set_object_generic("backmatter", "bibliography", "para", "bibliography", out_.to!string.strip, 0);
+          comp_obj_.metainfo.identifier               = "";
+          comp_obj_.metainfo.object_number_off        = true;
+          comp_obj_.metainfo.object_number_type       = 0;
+          comp_obj_.attrib.indent_hang                = 0;
+          comp_obj_.attrib.indent_base                = 1;
+          comp_obj_.attrib.bullet                     = bullet;
+          comp_obj_.tags.anchor_tags                  = [anchor_tag];
+          the_document_bibliography_section           ~= comp_obj_;
+        }
+      }
+    } else {
+      comp_obj_                                   = set_object_heading("lev1", "empty", "empty", "(skip) there is no Bibliography");
+      comp_obj_.metainfo.identifier               = "";
+      comp_obj_.metainfo.dummy_heading            = true;
+      comp_obj_.metainfo.object_number_off        = true;
+      comp_obj_.metainfo.object_number_type       = 0;
+      the_document_bibliography_section           ~= comp_obj_;
+    }
+    debug(bibliosection) { foreach (o; the_document_bibliography_section) { writeln(o.text); } }
+    ST_biblio_section ret;
+    {
+      ret.bibliography_section = the_document_bibliography_section;
+      ret.tag_assoc            = tag_assoc; //
+    }
+    return ret;
+  }
+  struct Bibliography {
+    @system ST_flow_bibliography flow_bibliography_()(
+      string[]    biblio_unsorted_incomplete,
+      JSONValue[] bib_arr_json
+    ) {
+      JSONValue[] biblio_unsorted
+        = biblio_make_unsorted_array_of_json_objects(biblio_unsorted_incomplete, bib_arr_json); // TODO lookat returns
+      biblio_arr_json = [];
+      biblio_unsorted_incomplete = [];
+      JSONValue[] biblio_sorted__ = biblio_sort(biblio_unsorted);
+      debug(biblio0) {
+        biblio_debug(biblio_sorted__);
+        writeln("---");
+        writeln("unsorted incomplete: ", biblio_unsorted_incomplete.length);
+        writeln("json:                ", bib_arr_json.length);
+        writeln("unsorted:            ", biblio_unsorted.length);
+        writeln("sorted:              ", biblio_sorted__.length);
+        int cntr;
+        int[7] x;
+        while (cntr < x.length) {
+          writeln(cntr, ": ", biblio_sorted__[cntr]["fulltitle"]);
+          cntr++;
+        }
+      }
+      ST_flow_bibliography ret;
+      {
+        ret.biblio_sorted  = biblio_sorted__;
+        ret.bib_arr_json  = bib_arr_json;
+        ret.biblio_unsorted_incomplete  = biblio_unsorted_incomplete;
+      }
+      return ret;
+    }
+    @system final private JSONValue[] biblio_make_unsorted_array_of_json_objects()(
+      string[]      biblio_unordered,
+      JSONValue[]   bib_arr_json
+    ) {
+      foreach (bibent; biblio_unordered) {
+        // update bib to include deemed_author, needed for:
+        // sort_bibliography_array_by_deemed_author_year_title
+        // either: sort on multiple fields, or; create such sort field
+        JSONValue j = parseJSON(bibent);
+        if (!empty(j["fulltitle"].str)) {
+          if (!empty(j["author_raw"].str)) {
+            j["deemed_author"] = j["author_arr"][0];
+          } else if (!empty(j["editor_raw"].str)) {
+            j["deemed_author"] = j["editor_arr"][0];
+          }
+          j["sortby_deemed_author_year_title"] = (
+            j["deemed_author"].str ~
+             "; " ~
+             j["year"].str ~
+             "; "  ~
+             j["fulltitle"].str
+          );
+        }
+        bib_arr_json ~= j;
+      }
+      return bib_arr_json.dup;
+    }
+    @system final private JSONValue[] biblio_sort()(JSONValue[] biblio_unordered) {
+      JSONValue[] biblio_sorted_;
+      biblio_sorted_
+        = sort!((a, b){
+          return ((a["sortby_deemed_author_year_title"].str) < (b["sortby_deemed_author_year_title"].str));
+        })(biblio_unordered).array;
+      debug(bibliosorted) {
+        foreach (j; biblio_sorted_) {
+          if (!empty(j["fulltitle"].str)) { writeln(j["sortby_deemed_author_year_title"]); }
+        }
+      }
+      return biblio_sorted_;
+    }
+    @system void biblio_debug()(JSONValue[] biblio_sorted) {
+      debug(biblio0) {
+        foreach (j; biblio_sorted) {
+          if (!empty(j["fulltitle"].str)) { writeln(j["sortby_deemed_author_year_title"]); }
+        }
+      }
+    }
+  }
+  // ↑ - section bibliography
+  // ↓ - section blurb
+  ST_the_section build_the_blurb_section(Opt) (
+    char[]                 line,             // line is immutable, not necessary to return unchanged
+    uint[string]           pith,             // double check, should not be necessary to pass pith
+    string[string][string] tag_assoc,        // only for headings: html & epub
+    Opt                    opt_action,
+  ) {
+    static auto rgx = RgxI();
+    ObjGenericComposite comp_obj_;
+    ObjGenericComposite[] add_to_current_document_section;
+    // assert (opt_action.backmatter && opt_action.section_blurb);
+    indent = [
+      "hang_position" : 0,
+      "base_position" : 0,
+    ];
+    bullet = false;
+    if (auto m = line.matchFirst(rgx.para_indent)) {
+      debug(paraindent) { writeln(line); }
+      indent["hang_position"] = (m["indent"]).to!int;
+      indent["base_position"] = (m["indent"]).to!int;
+    } else if (line.matchFirst(rgx.para_bullet)) {
+      debug(parabullet) { writeln(line); }
+      bullet = true;
+    } else if (auto m = line.matchFirst(rgx.para_indent_hang)) {
+      debug(paraindenthang) { writeln(line); }
+      indent = [
+        "hang_position" : (m["hang"]).to!int,
+        "base_position" : (m["indent"]).to!int,
+      ];
+    } else if (auto m = line.matchFirst(rgx.para_bullet_indent)) {
+      debug(parabulletindent) { writeln(line); }
+      indent = [
+        "hang_position" : (m["indent"]).to!int,
+        "base_position" : (m["indent"]).to!int,
+      ];
+      bullet = true;
+    }
+    pith["txt_is"]           = eN.txt_is.para;
+    line_occur["para"]       = eN.bi.off;
+    an_object_key = "blurb_nugget";
+    ST_the_section ret;
+    if (line.matchFirst(rgx.heading_blurb)
+    && (opt_action.backmatter && opt_action.section_blurb)) {
+      {
+        comp_obj_                                              = set_object_heading("lev1", "backmatter", "blurb", "Blurb");
+        comp_obj_.metainfo.identifier                          = "";
+        comp_obj_.metainfo.dummy_heading                       = false;
+        comp_obj_.metainfo.object_number_off                   = false;
+        comp_obj_.metainfo.object_number_type                  = 0;
+        comp_obj_.tags.segment_anchor_tag_epub                 = "_part_blurb";
+        comp_obj_.tags.anchor_tag_html                         = comp_obj_.tags.segment_anchor_tag_epub;
+        comp_obj_.tags.in_segment_html                         = "blurb";
+        comp_obj_.tags.anchor_tags                             = ["section_blurb"];
+        comp_obj_.metainfo.dom_structure_markedup_tags_status  = [ 1, 1, 0, 0, 0, 0, 0, 0];
+        comp_obj_.metainfo.dom_structure_collapsed_tags_status = [ 1, 1, 0, 0, 0, 0, 0, 0];
+        add_to_current_document_section                                 ~= comp_obj_;
+        tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+        tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+      }
+      {
+        comp_obj_                                              = set_object_heading("lev4", "backmatter", "blurb", "Blurb");
+        comp_obj_.metainfo.identifier                          = "";
+        comp_obj_.metainfo.dummy_heading                       = true;
+        comp_obj_.metainfo.object_number_off                   = true;
+        comp_obj_.metainfo.object_number_type                  = 0;
+        comp_obj_.tags.segment_anchor_tag_epub                 = "blurb";
+        comp_obj_.tags.anchor_tag_html                         = comp_obj_.tags.segment_anchor_tag_epub;
+        comp_obj_.tags.in_segment_html                         = comp_obj_.tags.anchor_tag_html;
+        comp_obj_.metainfo.heading_lev_collapsed               = 2;
+        comp_obj_.tags.anchor_tags                             = ["blurb"];
+        add_to_current_document_section                                 ~= comp_obj_;
+        tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+        tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+      }
+    } else if (line.matchFirst(rgx.headings)
+    && (opt_action.backmatter && opt_action.section_blurb)) {
+      comp_obj_                                              = comp_obj_.init;
+      comp_obj_.metainfo.is_of_part                          = "backmatter";
+      comp_obj_.metainfo.is_of_section                       = "blurb";
+      comp_obj_.metainfo.is_of_type                          = "para";
+      comp_obj_.metainfo.is_a                                = "heading";
+      comp_obj_.text                                         = line.to!string;
+      comp_obj_.metainfo.ocn                                 = 0;
+      comp_obj_.metainfo.identifier                          = "";
+      comp_obj_.metainfo.dummy_heading                       = false;
+      comp_obj_.metainfo.object_number_off                   = true;
+      comp_obj_.metainfo.object_number_type                  = 0;
+      comp_obj_.tags.segment_anchor_tag_epub                 = "blurb";
+      comp_obj_.tags.anchor_tag_html                         = comp_obj_.tags.segment_anchor_tag_epub;
+      comp_obj_.tags.in_segment_html                         = comp_obj_.tags.anchor_tag_html;
+      comp_obj_.metainfo.heading_lev_markup                  = an_object["lev_markup_number"].to!int;    // make int, remove need to conv
+      comp_obj_.metainfo.heading_lev_collapsed               = an_object["lev_collapsed_number"].to!int; // make int, remove need to conv
+      comp_obj_.metainfo.parent_ocn                          = 1;
+      comp_obj_.metainfo.parent_lev_markup                   = 0;
+      add_to_current_document_section                                 ~= comp_obj_;
+      tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+      tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+    } else if (!(line.empty)) {
+      {
+        auto _get = line.flow_para_match_(an_object, an_object_key, indent, bullet, pith, line_occur);
+        {
+          an_object     = _get.this_object;
+          an_object_key = _get.this_object_key;
+          pith          = _get.pith;
+          indent        = _get.indent;
+          bullet        = _get.bullet;
+          line_occur    = _get.line_occur;
+        }
+      }
+      comp_obj_                               = set_object_generic("backmatter", "blurb", "para", "blurb", links_and_images(line.to!string.strip).replaceFirst(rgx.para_attribs, ""), 0);
+      comp_obj_.metainfo.identifier           = "";
+      comp_obj_.metainfo.object_number_off    = true;
+      comp_obj_.metainfo.object_number_type   = 0;
+      comp_obj_.attrib.indent_hang            = indent["hang_position"];
+      comp_obj_.attrib.indent_base            = indent["base_position"];
+      comp_obj_.has.inline_links              = true;
+      comp_obj_.attrib.bullet                 = bullet;
+      add_to_current_document_section         ~= comp_obj_;
+    }
+    pith["ocn"] = eN.ocn.on;
+    {
+      ret.comp_section_obj = add_to_current_document_section;
+      ret.pith             = pith;
+      ret.tag_assoc        = tag_assoc; // NO CHANGE here, only for headings: html & epub
+    }
+    return ret;
+  }
+  // ↑ - section blurb
+  // ↓ - images
+  string[] extract_images()(string content_block) {
+    static auto rgx = RgxI();
+    string[] images_;
+    if (auto m = content_block.matchAll(rgx.image)) {
+      images_ ~= m.captures[1];
+    }
+    return images_;
+  }
+  @system auto _image_dimensions(O,M)(O obj, M manifested) {
+    static auto rgx = RgxI();
+    if (obj.has.image_without_dimensions) {
+      import std.math;
+      import imageformats;
+      int w, h, chans;
+      real _w, _h;
+      int max_width = 640;
+      foreach (img; obj.text.matchAll(rgx.inline_image_without_dimensions)) {
+        try {
+          read_image_info(manifested.src.image_dir_path ~ "/" ~ img["img"], w, h, chans);
+        } catch (Exception ex) {
+          writeln("WARNING, image not found: ", img["img"], "\n  ", manifested.src.image_dir_path ~ "/" ~ img["img"]);
+        }
+        // calculate, decide max width and proportionally reduce to keep w & h within it
+        debug(images) { writeln("width: ", w, ", height: ", h); }
+        if (w > max_width) {
+          _w = max_width;
+          _h = round((max_width / w.to!real) * h.to!real);
+        } else {
+          _w = w;
+          _h = h;
+        }
+        obj.text = obj.text.replaceFirst(
+          rgx.inline_image_without_dimensions,
+          format(q"┃%s☼%s,w%sh%s %s┃",
+            "$1",
+            "$3",
+            _w.to!string,
+            _h.to!string,
+            "$6",
+          )
+        );
+      }
+      debug(images) { writeln("image without dimensions: ", obj.text); }
+    }
+    return obj;
+  }
+  // ↑ - images
+  // ↓ - links
+  auto _links(O)(O obj) {
+    static auto rgx = RgxI();
+    if (auto m = obj.text.match(rgx.inline_link_stow_uri)) {
+      debug(links) {
+        writeln("number of link matches to stow: ", (obj.text.match(rgx.inline_link_stow_uri)).count);
+        writeln("links to stow: ", (obj.text.match(rgx.inline_link_stow_uri)));
+      }
+      int _n_matches = (obj.text.match(rgx.inline_link_stow_uri)).count.to!int;
+      for(int i = 0; i < _n_matches; ++i) {
+        if (obj.text.match(rgx.inline_link_stow_uri)) {
+          obj.stow.link ~= obj.text.matchFirst(rgx.inline_link_stow_uri)[2];
+          obj.text = obj.text.replaceFirst(
+            rgx.inline_link_stow_uri,
+            format(q"┃┥%s┝┤%s├┃", "$1", i)
+          );
+        }
+      }
+    }
+    return obj;
+  }
+  // ↑ - links
+  // ↓ - segnames
+  @system ST_segnames after_doc_determine_segnames(
+    ObjGenericComposite[] the_document_body_section,
+    ObjGenericComposite[] the_document_endnotes_section,
+    ObjGenericComposite[] the_document_glossary_section,
+    ObjGenericComposite[] the_document_bibliography_section,
+    ObjGenericComposite[] the_document_bookindex_section,
+    ObjGenericComposite[] the_document_blurb_section,
+    string[][string]      segnames,
+    int                   html_segnames_ptr_cntr,
+    int                   html_segnames_ptr,
+  ) {
+    if (the_document_endnotes_section.length > 1) {
+      segnames["html"] ~= "endnotes";
+      segnames["epub"] ~= "endnotes";
+      html_segnames_ptr = html_segnames_ptr_cntr;
+      foreach (ref obj; the_document_endnotes_section) {
+        if (obj.metainfo.is_a == "heading") {
+          obj.metainfo.parent_ocn = obj.metainfo.markedup_ancestors[obj.metainfo.parent_lev_markup];
+        }
+        if (obj.metainfo.heading_lev_markup == 4) {
+          obj.ptr.html_segnames = html_segnames_ptr;
+          break;
+        }
+      }
+      html_segnames_ptr_cntr++;
+    }
+    if (the_document_glossary_section.length > 1) {
+      segnames["html"] ~= "glossary";
+      segnames["epub"] ~= "glossary";
+      html_segnames_ptr = html_segnames_ptr_cntr;
+      foreach (ref obj; the_document_glossary_section) {
+        if (obj.metainfo.is_a == "heading") {
+          obj.metainfo.parent_ocn = obj.metainfo.markedup_ancestors[obj.metainfo.parent_lev_markup];
+        }
+        if (obj.metainfo.heading_lev_markup == 4) {
+          obj.ptr.html_segnames = html_segnames_ptr;
+          break;
+        }
+      }
+      html_segnames_ptr_cntr++;
+    }
+    if (the_document_bibliography_section.length > 1) {
+      segnames["html"] ~= "bibliography";
+      segnames["epub"] ~= "bibliography";
+      html_segnames_ptr = html_segnames_ptr_cntr;
+      foreach (ref obj; the_document_bibliography_section) {
+        if (obj.metainfo.is_a == "heading") {
+          obj.metainfo.parent_ocn = obj.metainfo.markedup_ancestors[obj.metainfo.parent_lev_markup];
+        }
+        if (obj.metainfo.heading_lev_markup == 4) {
+          obj.ptr.html_segnames = html_segnames_ptr;
+          break;
+        }
+      }
+      html_segnames_ptr_cntr++;
+    }
+    if (the_document_bookindex_section.length > 1) {
+      segnames["html"] ~= "bookindex";
+      segnames["epub"] ~= "bookindex";
+      html_segnames_ptr = html_segnames_ptr_cntr;
+      foreach (ref obj; the_document_bookindex_section) {
+        if (obj.metainfo.is_a == "heading") {
+          obj.metainfo.parent_ocn = obj.metainfo.markedup_ancestors[obj.metainfo.parent_lev_markup];
+        }
+        if (obj.metainfo.heading_lev_markup == 4) {
+          obj.ptr.html_segnames = html_segnames_ptr;
+          break;
+        }
+      }
+      html_segnames_ptr_cntr++;
+    }
+    if (the_document_blurb_section.length > 1) {
+      segnames["html"] ~= "blurb";
+      segnames["epub"] ~= "blurb";
+      html_segnames_ptr = html_segnames_ptr_cntr;
+      foreach (ref obj; the_document_blurb_section) {
+        if (obj.metainfo.is_a == "heading") {
+          obj.metainfo.parent_ocn = obj.metainfo.markedup_ancestors[obj.metainfo.parent_lev_markup];
+        }
+        if (obj.metainfo.heading_lev_markup == 4) {
+          obj.ptr.html_segnames = html_segnames_ptr;
+          break;
+        }
+      }
+      html_segnames_ptr_cntr++;
+    }
+    ST_segnames ret;
+    ret.segnames                          = segnames;
+    ret.html_segnames_ptr_cntr            = html_segnames_ptr_cntr;
+    ret.html_segnames_ptr                 = html_segnames_ptr;
+    return ret;
+  }
+  // ↑ - segnames
+  // ↓ - ancestors descendants
+  struct NodeStructureMetadata {
+    int lv, lv0, lv1, lv2, lv3, lv4, lv5, lv6, lv7;
+    int obj_cite_digit;
+    int[string] p_; // p_ parent_
+    static auto rgx = RgxI();
+    ObjGenericComposite node_location_emitter(La,Ta)(
+      string         lev_markup_number,
+      string[string] tag_in_seg,
+      La             lev_anchor_tag,
+      Ta             tag_assoc,
+      OCNset         obj_cite_digits,
+      int            cntr_,
+      int            ptr_,
+      string         is_
+    ) {
+      debug(asserts) { static assert(is(typeof(obj_cite_digits.object_number) == int)); }
+      assert(is_ != "heading");
+      assert(obj_cite_digits.object_number.to!int >= 0);
+      assert(is_ != "heading");                          // should not be necessary
+      assert(obj_cite_digits.object_number.to!int >= 0); // should not be necessary
+      if (lv7 > eN.bi.off) {
+        p_["lev_markup_number"]                       = DocStructMarkupHeading.h_text_4;
+        p_["object_number"]                           = lv7;
+      } else if (lv6 > eN.bi.off) {
+        p_["lev_markup_number"]                       = DocStructMarkupHeading.h_text_3;
+        p_["object_number"]                           = lv6;
+      } else if (lv5 > eN.bi.off) {
+        p_["lev_markup_number"]                       = DocStructMarkupHeading.h_text_2;
+        p_["object_number"]                           = lv5;
+      } else {
+        p_["lev_markup_number"]                       = DocStructMarkupHeading.h_text_1;
+        p_["object_number"]                           = lv4;
+      }
+      ObjGenericComposite comp_obj_location;
+      comp_obj_location                               = comp_obj_location.init;
+      comp_obj_location.metainfo.is_a                 = is_;
+      comp_obj_location.metainfo.ocn                  = obj_cite_digits.object_number;
+      comp_obj_location.metainfo.identifier           = obj_cite_digits.identifier;
+      comp_obj_location.tags.anchor_tag_html          = tag_in_seg["seg_lv4"];
+      comp_obj_location.tags.segment_anchor_tag_epub  = tag_in_seg["seg_lv1to4"];
+      comp_obj_location.tags.heading_lev_anchor_tag   = lev_anchor_tag;
+      comp_obj_location.metainfo.parent_ocn           = p_["object_number"];
+      comp_obj_location.metainfo.parent_lev_markup    = p_["lev_markup_number"];
+      debug(_node) {
+        if (lev_markup_number.match(rgx.levels_numbered_headings)) { writeln("x ", _node.to!string);
+        } else { writeln("- ", _node.to!string); }
+      }
+      assert(comp_obj_location.metainfo.parent_lev_markup >= 4);
+      assert(comp_obj_location.metainfo.parent_lev_markup <= 7);
+      assert(comp_obj_location.metainfo.parent_ocn >= 0);
+      return comp_obj_location;
+    }
+    invariant() {
+    }
+    ObjGenericComposite node_emitter_heading(O,TaL,TA,SOAT)(
+      O              an_object,
+      string[string] tag_in_seg,
+      TaL            lev_anchor_tag,
+      TA             tag_assoc,
+      OCNset         obj_cite_digits,
+      int            cntr_,
+      int            ptr_,
+      string[]       lv_ancestors_txt,
+      int            html_segnames_ptr,
+      SOAT           substantive_object_and_anchor_tags_struct,
+    ) {
+      string _text                = an_object["substantive"];
+      string lev_markup_number    = an_object["lev_markup_number"];
+      string lev_collapsed_number = an_object["lev_collapsed_number"];
+      string dummy_heading_status = an_object["dummy_heading_status"];
+      string is_                  = an_object["is"];
+      debug(asserts) {
+        static assert(is(typeof(lev)                                       == string));
+        static assert(is(typeof(obj_cite_digits.object_number)             == int));
+      }
+      assert(is_ == "heading");
+      assert((obj_cite_digits.object_number).to!int >= 0);
+      assert(
+        lev_markup_number.match(rgx.levels_numbered),
+        ("not a valid heading level: " ~ lev_markup_number ~ " at " ~ obj_cite_digits.object_number.to!string)
+      );
+      if (lev_markup_number.match(rgx.levels_numbered)) {
+        if (lev_markup_number.to!int == 0) {
+          // TODO first hit (of two) with this assertion failure, check, fix & reinstate
+          // assert(obj_cite_digits.object_number.to!int == 1,
+          //   "ERROR header lev markup number is: " ~
+          //   lev_markup_number.to!string ~
+          //   " obj_cite_digits.object_number.to!int should == 1 but is: " ~
+          //    obj_cite_digits.object_number.to!string ~
+          //   "\n" ~ _text);
+        }
+      }
+      switch (lev_markup_number.to!int) {
+      case 0:
+        lv = DocStructMarkupHeading.h_sect_A;
+        lv0 = obj_cite_digit;
+        lv1 = 0; lv2 = 0; lv3 = 0; lv4 = 0; lv5 = 0; lv6 = 0; lv7 = 0;
+        p_["lev_markup_number"] = 0;
+        p_["object_number"] = 0;
+        break;
+      case 1:
+        lv = DocStructMarkupHeading.h_sect_B;
+        lv1 = obj_cite_digit;
+        lv2 = 0; lv3 = 0; lv4 = 0; lv5 = 0; lv6 = 0; lv7 = 0;
+        p_["lev_markup_number"]
+          = DocStructMarkupHeading.h_sect_A;
+        p_["object_number"] = lv0;
+        break;
+      case 2:
+        lv = DocStructMarkupHeading.h_sect_C;
+        lv2 = obj_cite_digit;
+        lv3 = 0; lv4 = 0; lv5 = 0; lv6 = 0; lv7 = 0;
+        p_["lev_markup_number"]
+          = DocStructMarkupHeading.h_sect_B;
+        p_["object_number"] = lv1;
+        break;
+      case 3:
+        lv = DocStructMarkupHeading.h_sect_D;
+        lv3 = obj_cite_digit;
+        lv4 = 0; lv5 = 0; lv6 = 0; lv7 = 0;
+        p_["lev_markup_number"]
+          = DocStructMarkupHeading.h_sect_C;
+        p_["object_number"] = lv2;
+        break;
+      case 4:
+        lv = DocStructMarkupHeading.h_text_1;
+        lv4 = obj_cite_digit;
+        lv5 = 0; lv6 = 0; lv7 = 0;
+        if (lv3 > eN.bi.off) {
+          p_["lev_markup_number"]
+            = DocStructMarkupHeading.h_sect_D;
+          p_["object_number"] = lv3;
+        } else if (lv2 > eN.bi.off) {
+          p_["lev_markup_number"]
+            = DocStructMarkupHeading.h_sect_C;
+          p_["object_number"] = lv2;
+        } else if (lv1 > eN.bi.off) {
+          p_["lev_markup_number"]
+            = DocStructMarkupHeading.h_sect_B;
+          p_["object_number"] = lv1;
+        } else {
+          p_["lev_markup_number"]
+            = DocStructMarkupHeading.h_sect_A;
+          p_["object_number"] = lv0;
+        }
+        break;
+      case 5:
+        lv = DocStructMarkupHeading.h_text_2;
+        lv5 = obj_cite_digit;
+        lv6 = 0; lv7 = 0;
+        p_["lev_markup_number"]
+          = DocStructMarkupHeading.h_text_1;
+        p_["object_number"] = lv4;
+        break;
+      case 6:
+        lv = DocStructMarkupHeading.h_text_3;
+        lv6 = obj_cite_digit;
+        lv7 = 0;
+        p_["lev_markup_number"]
+          = DocStructMarkupHeading.h_text_2;
+        p_["object_number"] = lv5;
+        break;
+      case 7:
+        lv = DocStructMarkupHeading.h_text_4;
+        lv7 = obj_cite_digit;
+        p_["lev_markup_number"]
+          = DocStructMarkupHeading.h_text_3;
+        p_["object_number"] = lv6;
+        break;
+      default:
+        break;
+      }
+      ObjGenericComposite comp_obj_;
+      comp_obj_                                        = comp_obj_.init;
+      comp_obj_.metainfo.is_of_part                    = "body";
+      comp_obj_.metainfo.is_of_section                 = "body";
+      comp_obj_.metainfo.is_of_type                    = "para";
+      comp_obj_.metainfo.is_a                          = "heading";
+      comp_obj_.text                                   = _text.to!string.strip;
+      comp_obj_.metainfo.ocn                           = obj_cite_digits.object_number;
+      comp_obj_.metainfo.identifier                    = obj_cite_digits.identifier;
+      comp_obj_.metainfo.dummy_heading                 = (dummy_heading_status == "t") ? true: false;
+      comp_obj_.metainfo.object_number_off             = obj_cite_digits.off;
+      // comp_obj_.metainfo.o_n_book_index             = obj_cite_digits.bkidx;
+      comp_obj_.metainfo.object_number_type            = obj_cite_digits.type;
+      comp_obj_.tags.segment_anchor_tag_epub           = tag_in_seg["seg_lv1to4"];
+      comp_obj_.tags.anchor_tag_html                   = tag_in_seg["seg_lv4"];
+      comp_obj_.tags.in_segment_html                   = comp_obj_.tags.anchor_tag_html;
+      comp_obj_.tags.heading_lev_anchor_tag            = lev_anchor_tag;
+      comp_obj_.tags.html_segment_anchor_tag_is        = tag_in_seg["seg_lv4"];
+      comp_obj_.tags.epub_segment_anchor_tag_is        = tag_in_seg["seg_lv1to4"];
+      comp_obj_.metainfo.heading_lev_markup            = (!(lev_markup_number.empty) ? lev_markup_number.to!int : 0);
+      comp_obj_.metainfo.heading_lev_collapsed         = (!(lev_collapsed_number.empty) ? lev_collapsed_number.to!int : 0);
+      comp_obj_.metainfo.parent_ocn                    = p_["object_number"];
+      comp_obj_.metainfo.parent_lev_markup             = p_["lev_markup_number"];
+      comp_obj_.tags.heading_ancestors_text            = lv_ancestors_txt;
+      comp_obj_.ptr.doc_object                         = cntr_;
+      comp_obj_.ptr.html_segnames                      = ((lev_markup_number == "4") ? html_segnames_ptr : 0);
+      comp_obj_.ptr.heading                            = ptr_;
+      comp_obj_.has.inline_notes_reg                   = substantive_object_and_anchor_tags_struct.has_notes_reg;
+      comp_obj_.has.inline_notes_star                  = substantive_object_and_anchor_tags_struct.has_notes_star;
+      comp_obj_.has.inline_links                       = substantive_object_and_anchor_tags_struct.has_links;
+      tag_assoc[comp_obj_.tags.anchor_tag_html]["seg_lv4"]            = comp_obj_.tags.in_segment_html;
+      tag_assoc[comp_obj_.tags.segment_anchor_tag_epub]["seg_lv1to4"] = comp_obj_.tags.segment_anchor_tag_epub;
+      debug(_node) {
+        if (lev_markup_number.match(rgx.levels_numbered_headings)) { writeln("* ", _node.to!string); }
+      }
+      debug(nodeheading) {
+        if (lev_markup_number.match(rgx.levels_numbered_headings)) { writeln("* ", _node.to!string); }
+      }
+      assert(comp_obj_.metainfo.parent_lev_markup <= 7);
+      assert(comp_obj_.metainfo.parent_ocn >= 0);
+      if (lev_markup_number.match(rgx.levels_numbered_headings)) {
+        assert(comp_obj_.metainfo.heading_lev_markup <= 7);
+        assert(comp_obj_.metainfo.ocn >= 0);
+        if (comp_obj_.metainfo.parent_lev_markup > 0) {
+          assert(comp_obj_.metainfo.parent_lev_markup < comp_obj_.metainfo.heading_lev_markup);
+          if (comp_obj_.metainfo.ocn != 0) {
+            assert(comp_obj_.metainfo.parent_ocn < comp_obj_.metainfo.ocn);
+          }
+        }
+        if (comp_obj_.metainfo.heading_lev_markup == 0) {
+          assert(comp_obj_.metainfo.parent_lev_markup == DocStructMarkupHeading.h_sect_A);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_sect_B) {
+          assert(comp_obj_.metainfo.parent_lev_markup == DocStructMarkupHeading.h_sect_A);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_sect_C) {
+          assert(comp_obj_.metainfo.parent_lev_markup == DocStructMarkupHeading.h_sect_B);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_sect_D) {
+          assert(comp_obj_.metainfo.parent_lev_markup == DocStructMarkupHeading.h_sect_C);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_text_1) {
+          assert(comp_obj_.metainfo.parent_lev_markup <= DocStructMarkupHeading.h_sect_D);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_text_2) {
+          assert(comp_obj_.metainfo.parent_lev_markup == DocStructMarkupHeading.h_text_1);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_text_3) {
+          assert(comp_obj_.metainfo.parent_lev_markup == DocStructMarkupHeading.h_text_2);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_text_4) {
+          assert(comp_obj_.metainfo.parent_lev_markup == DocStructMarkupHeading.h_text_3);
+        } else if  (comp_obj_.metainfo.heading_lev_markup == DocStructMarkupHeading.h_text_5) {
+        }
+      }
+      return comp_obj_;
+    }
+    invariant() {
+    }
+  }
+  @system ST_ancestors after_doc_determine_ancestors(
+    ObjGenericComposite[] the_document_body_section,
+    ObjGenericComposite[] the_document_endnotes_section,
+    ObjGenericComposite[] the_document_glossary_section,
+    ObjGenericComposite[] the_document_bibliography_section,
+    ObjGenericComposite[] the_document_bookindex_section,
+    ObjGenericComposite[] the_document_blurb_section,
+  ) {
+    int[] _get_ancestors_markup(ObjGenericComposite obj, int[] _ancestors_markup) {
+      if (obj.metainfo.is_a == "heading") {
+        debug(dom) { writeln(obj.text); }
+        if (obj.metainfo.heading_lev_markup == 1) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            0,0,0,0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_markup == 2) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            _ancestors_markup[1],
+            0,0,0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_markup == 3) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            _ancestors_markup[1],
+            _ancestors_markup[2],
+            0,0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_markup == 4) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            _ancestors_markup[1],
+            _ancestors_markup[2],
+            _ancestors_markup[3],
+            0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_markup == 5) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            _ancestors_markup[1],
+            _ancestors_markup[2],
+            _ancestors_markup[3],
+            _ancestors_markup[4],
+            0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_markup == 6) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            _ancestors_markup[1],
+            _ancestors_markup[2],
+            _ancestors_markup[3],
+            _ancestors_markup[4],
+            _ancestors_markup[5],
+            0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_markup == 7) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            _ancestors_markup[1],
+            _ancestors_markup[2],
+            _ancestors_markup[3],
+            _ancestors_markup[4],
+            _ancestors_markup[5],
+            _ancestors_markup[6],
+            0
+          ];
+        }
+        if (obj.metainfo.heading_lev_markup == 8) {
+          _ancestors_markup = [
+            _ancestors_markup[0],
+            _ancestors_markup[1],
+            _ancestors_markup[2],
+            _ancestors_markup[3],
+            _ancestors_markup[4],
+            _ancestors_markup[5],
+            _ancestors_markup[6],
+            _ancestors_markup[7]
+          ];
+        }
+        _ancestors_markup[obj.metainfo.heading_lev_markup] = obj.metainfo.ocn;
+      }
+      debug(ancestor_markup) { writeln("marked up: ", _ancestors_markup); }
+      return _ancestors_markup;
+    }
+    int[] _get_ancestors_collapsed(ObjGenericComposite obj, int[] _ancestors_collapsed) {
+      if (obj.metainfo.is_a == "heading") {
+        if (obj.metainfo.heading_lev_collapsed == 1) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            0,0,0,0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_collapsed == 2) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            _ancestors_collapsed[1],
+            0,0,0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_collapsed == 3) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            _ancestors_collapsed[1],
+            _ancestors_collapsed[2],
+            0,0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_collapsed == 4) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            _ancestors_collapsed[1],
+            _ancestors_collapsed[2],
+            _ancestors_collapsed[3],
+            0,0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_collapsed == 5) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            _ancestors_collapsed[1],
+            _ancestors_collapsed[2],
+            _ancestors_collapsed[3],
+            _ancestors_collapsed[4],
+            0,0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_collapsed == 6) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            _ancestors_collapsed[1],
+            _ancestors_collapsed[2],
+            _ancestors_collapsed[3],
+            _ancestors_collapsed[4],
+            _ancestors_collapsed[5],
+            0,0
+          ];
+        }
+        if (obj.metainfo.heading_lev_collapsed == 7) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            _ancestors_collapsed[1],
+            _ancestors_collapsed[2],
+            _ancestors_collapsed[3],
+            _ancestors_collapsed[4],
+            _ancestors_collapsed[5],
+            _ancestors_collapsed[6],
+            0
+          ];
+        }
+        if (obj.metainfo.heading_lev_collapsed == 8) {
+          _ancestors_collapsed = [
+            _ancestors_collapsed[0],
+            _ancestors_collapsed[1],
+            _ancestors_collapsed[2],
+            _ancestors_collapsed[3],
+            _ancestors_collapsed[4],
+            _ancestors_collapsed[5],
+            _ancestors_collapsed[6],
+            _ancestors_collapsed[7]
+          ];
+        }
+        _ancestors_collapsed[obj.metainfo.heading_lev_collapsed] = obj.metainfo.ocn;
+      }
+      debug(ancestor_collapsed) { writeln("collapsed: ", _ancestors_collapsed); }
+      return _ancestors_collapsed;
+    }
+    // multiple 1~ levels, loop through document body
+    if (the_document_body_section.length > 1) {
+      int[] _ancestors_markup = [0,0,0,0,0,0,0,0];
+      int[][] _ancestors_markup_;
+      _ancestors_markup = [1,0,0,0,0,0,0,0];
+      _ancestors_markup_ ~= _ancestors_markup;
+      int[] _ancestors_collapsed = [0,0,0,0,0,0,0,0];
+      int[][] _ancestors_collapsed_;
+      _ancestors_collapsed = [1,0,0,0,0,0,0,0];
+      _ancestors_collapsed_ ~= _ancestors_collapsed;
+      foreach (ref obj; the_document_body_section) {
+        if (obj.metainfo.is_a == "heading") {
+          obj.metainfo.markedup_ancestors = _get_ancestors_markup(obj, _ancestors_markup);
+          obj.metainfo.collapsed_ancestors = _get_ancestors_collapsed(obj, _ancestors_collapsed);
+          obj.metainfo.parent_ocn = obj.metainfo.markedup_ancestors[obj.metainfo.parent_lev_markup];
+        }
+      }
+      debug(ancestors) {
+        writeln("ancestors markup o_n:    ", obj.metainfo.markedup_ancestors);
+        writeln("ancestors collapsed o_n: ", obj.metainfo.markedup_ancestors);
+      }
+    }
+    ST_ancestors ret;
+    ret.the_document_body_section         = the_document_body_section;
+    ret.the_document_endnotes_section     = the_document_endnotes_section;
+    ret.the_document_glossary_section     = the_document_glossary_section;
+    ret.the_document_bibliography_section = the_document_bibliography_section;
+    ret.the_document_bookindex_section    = the_document_bookindex_section;
+    ret.the_document_blurb_section        = the_document_blurb_section;
+    return ret;
+  }
+  // ↑ - ancestors
+  // ↓ - descendants
+  // descendants
+  auto after_doc_get_descendants()(ObjGenericComposite[] document_sections) {
+    int[string] _heading_ocn_descendants;
+    string[] _ocn_open_key = ["","","","","","","",""];
+    auto _doc_sect_length = document_sections.length - 1;
+    int _last_ocn;
+    foreach (_lg, ref obj; document_sections) {
+      if (obj.metainfo.is_a == "heading") {
+        foreach (_dts_lv, dom_tag_status; obj.metainfo.dom_structure_markedup_tags_status) {
+          switch (dom_tag_status) with (DomTags) {
+          case none: break;
+          case open:
+              _ocn_open_key[_dts_lv] = (obj.metainfo.ocn).to!string;
+              _heading_ocn_descendants[_ocn_open_key[_dts_lv]] = obj.metainfo.ocn;
+            break;
+          case close:
+            if (_ocn_open_key[_dts_lv].empty) {
+              _ocn_open_key[_dts_lv] = "0";
+            }
+            _heading_ocn_descendants[_ocn_open_key[_dts_lv]] = obj.metainfo.ocn - 1;
+            _ocn_open_key[_dts_lv] = (0).to!string;
+            break;
+          case close_and_open:
+            if (_ocn_open_key[_dts_lv].empty) {
+              _ocn_open_key[_dts_lv] = "0";
+            }
+            _heading_ocn_descendants[_ocn_open_key[_dts_lv]] = obj.metainfo.ocn - 1;
+            _ocn_open_key[_dts_lv] = (obj.metainfo.ocn).to!string;
+            _heading_ocn_descendants[_ocn_open_key[_dts_lv]] = obj.metainfo.ocn;
+            break;
+          case open_still: break;
+          default: break;
+          }
+        }
+      }
+      if (obj.metainfo.ocn > 0) {
+        _last_ocn = obj.metainfo.ocn;
+      }
+      if (_lg == _doc_sect_length) {
+        _heading_ocn_descendants["1"] = _last_ocn; // close existing o_n key
+      }
+    }
+    Tuple!(int, int)[] pairs;
+    foreach (pair; _heading_ocn_descendants.byPair) {
+      pairs ~= tuple(pair[0].to!int, pair[1]);
+    }
+    return pairs.sort;
+  }
+  // ↑ - descendants
+  // ↓ - assertions
+  pure void assertions_doc_structure()(
+    string[string]  an_object,
+    string          an_object_key,
+    int[string]     lv
+  ) {
+    string msg_error_doc_struct = "\nERROR in document structure, check markup (heading level relationships):\n";
+    if (lv["h3"] > eN.bi.off) {
+      assert(lv["h0"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h1"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h2"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else if (lv["h2"] > eN.bi.off) {
+      assert(lv["h0"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h1"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h3"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else if (lv["h1"] > eN.bi.off) {
+      assert(lv["h0"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h2"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h3"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else if (lv["h0"] > eN.bi.off) {
+      assert(lv["h1"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h2"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h3"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else {
+      assert(lv["h0"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h1"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h2"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h3"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h7"] > eN.bi.off) {
+      assert(lv["h4"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ "missing segment level 1~\n"
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h5"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h6"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else if (lv["h6"] > eN.bi.off) {
+      assert(lv["h4"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ "missing segment level 1~\n"
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h5"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else if (lv["h5"] > eN.bi.off) {
+      assert(lv["h4"] > eN.bi.off,
+        msg_error_doc_struct
+        ~ "missing segment level 1~\n"
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h6"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else if (lv["h4"] > eN.bi.off) {
+      assert(lv["h5"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h6"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    } else {
+      assert(lv["h4"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ "missing segment level 1~\n"
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h5"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h6"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h0"] == eN.bi.off) {
+      assert(lv["h1"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h2"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h3"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h4"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ "missing segment level 1~\n"
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h5"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h6"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h1"] == eN.bi.off) {
+      assert(lv["h2"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h3"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h2"] == eN.bi.off) {
+      assert(lv["h3"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h3"] == eN.bi.off) {
+    }
+    if (lv["h4"] == eN.bi.off) {
+      assert(lv["h5"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h6"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h5"] == eN.bi.off) {
+      assert(lv["h6"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h6"] == eN.bi.off) {
+      assert(lv["h7"] == eN.bi.off,
+        msg_error_doc_struct
+        ~ an_object[an_object_key]
+      );
+    }
+    if (lv["h7"] == eN.bi.off) {
+    }
+    switch ((an_object["lev"]).to!string) {
+    case "A":
+      if (lv["h0"] == eN.bi.off) {
+        assert(lv["h1"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h2"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h3"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~\n"
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h5"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h6"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h7"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                       // (lv["h0"] > eN.bi.off)
+        assert(lv["h0"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "should not enter level A a second time\n"
+          ~ "at level A~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    case "B":
+      if (lv["h1"] == eN.bi.off) {
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level B~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h2"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level B~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h3"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level B~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                       // (lv["h1"] > eN.bi.off)
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level B~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h1"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level B~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    case "C":
+      if (lv["h2"] == eN.bi.off) {
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level C~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h1"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "level C should not follow level A\n"
+          ~ "at level C~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h3"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level C~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                       // (lv["h2"] > eN.bi.off)
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level C~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h1"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level C~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h2"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level C~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    case "D":
+      if (lv["h3"] == eN.bi.off) {
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level D~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h1"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "level D should not follow level A\n"
+          ~ "at level D~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h2"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level D~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                      // (lv["h3"] > eN.bi.off)
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level D~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h1"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level D~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h2"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level D~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h3"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level D~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    case "1":
+      if (lv["h4"] == eN.bi.off) {
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 1~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h5"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 1~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h6"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 1~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h7"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 1~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                      // (lv["h4"] > eN.bi.off)
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 1~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~ ?\n"
+          ~ "at level 1~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    case "2":
+      if (lv["h5"] == eN.bi.off) {
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 2~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~ ?\n"
+          ~ "at level 2~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h6"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 2~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h7"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 2~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                      // (lv["h5"] > eN.bi.off)
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 2~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~ ?\n"
+          ~ "at level 2~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h5"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 2~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    case "3":
+      if (lv["h6"] == eN.bi.off) {
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~ ?\n"
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h5"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 2~ ?\n"
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h7"] == eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                      // (lv["h6"] > eN.bi.off)
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~ ?\n"
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h5"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h6"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 3~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    case "4":
+      if (lv["h7"] == eN.bi.off) {
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~ ?\n"
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h5"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 2~ ?\n"
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h6"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 3~ ?\n"
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+      } else {                      // (lv["h7"] > eN.bi.off)
+        assert(lv["h0"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h4"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "missing segment level 1~ ?\n"
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h5"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h6"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+        assert(lv["h7"] > eN.bi.off,
+          msg_error_doc_struct
+          ~ "at level 4~\n"
+          ~ an_object[an_object_key]
+        );
+      }
+      break;
+    default:
+      break;
+    }
+  }
+  // ↑ - assertions
+}
+template docSectKeysSeq() {
+  auto docSectKeysSeq(string[][string] document_section_keys_sequenced) {
+    struct doc_sect_keys_seq {
+      string[] scroll() {
+        return document_section_keys_sequenced["scroll"];
+      }
+      string[] seg() {
+        return document_section_keys_sequenced["seg"];
+      }
+      string[] sql() {
+        return document_section_keys_sequenced["sql"];
+      }
+      string[] latex() {
+        return document_section_keys_sequenced["latex"];
+      }
+    }
+    return doc_sect_keys_seq();
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_object_setter.d b/src/sisudoc/meta/metadoc_object_setter.d
new file mode 100644
index 0000000..a2ceff6
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_object_setter.d
@@ -0,0 +1,426 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  object setter:
+  setting of sisu objects for downstream processing
+  metadoc_object_setter.d
++/
+module sisudoc.meta.metadoc_object_setter;
+@safe:
+template ObjectSetter() {
+  /+ structs +/
+  struct DocObj_TxtAttrib_ {
+    int                    indent_base                         = 0;
+    int                    indent_hang                         = 0;
+    bool                   bullet                              = false;
+    string                 language                            = "";
+  }
+  struct DocObj_Has_ {
+    bool                   inline_links                        = false;
+    bool                   inline_notes_reg                    = false;
+    bool                   inline_notes_star                   = false;
+    bool                   images                              = false;
+    bool                   image_without_dimensions            = false;
+  }
+  struct DocObj_Table_ {
+    int                    number_of_columns                   = 0;
+    double[]               column_widths                       = [];
+    string[]               column_aligns                       = [];
+    bool                   heading                             = false;
+    bool                   walls                               = false;
+  }
+  struct DocObj_CodeBlock_ {
+    string                 syntax                              = "";
+    bool                   linenumbers                         = false;
+  }
+  struct DocObj_Stow_ {
+    string[]               link                               = [];
+  }
+  struct DocObj_Pointer_ {
+    int                    doc_object                          = 0;
+    int                    html_segnames                       = 0;
+    int                    heading                             = 0;
+  }
+  struct DocObj_Tags_ {
+    string[]               heading_ancestors_text              = [ "", "", "", "", "", "", "", "", ];
+    string                 anchor_tag_html                     = "";
+    string                 in_segment_html                     = "";
+    string                 segment_anchor_tag_epub             = "";
+    string                 html_segment_anchor_tag_is          = "";
+    string                 epub_segment_anchor_tag_is          = "";
+    string                 heading_lev_anchor_tag              = "";
+    string                 segname_prev                        = "";
+    string                 segname_next                        = "";
+    string[]               lev4_subtoc                         = [];
+    string[]               anchor_tags                         = [];
+  }
+  struct DocObj_MetaInfo_ {
+    string                 is_of_part                           = ""; // frontmatter, body, backmatter
+    string                 is_of_section                        = ""; // toc, body, glossary, biography, book index, blurb
+    string                 is_of_type                           = ""; // para, block ?
+    string                 is_a                                 = ""; // heading, para, table, code block, group, verse/poem ...
+    alias                  of_part                              = is_of_part;
+    alias                  of_section                           = is_of_section;
+    alias                  is_of                                = is_of_type;
+    string                 attrib                               = "";
+    string                 lang                                 = ""; // blocks: group, block, quote; not codeblock;
+    string                 syntax                               = ""; // codeblock only
+    /+ o_n +/
+    int                    o_n_substantive                      = 0;
+    int                    o_n_non_substantive                  = 0;
+    int                    o_n_glossary                         = 0;
+    int                    o_n_bibliography                     = 0;
+    int                    o_n_book_index                       = 0;
+    int                    o_n_blurb                            = 0;
+     string object_number_substantive() const @property {
+      return (o_n_substantive == 0) ? "" : o_n_substantive.to!string;
+    }
+    string object_number_non_substantive() const @property {
+      return (o_n_non_substantive == 0) ? "" : o_n_non_substantive.to!string;
+    }
+    string object_number_glossary() const @property {
+      return (o_n_glossary == 0) ? "" : o_n_glossary.to!string;
+    }
+    string object_number_bibliography() const @property {
+      return (o_n_bibliography == 0) ? "" : o_n_bibliography.to!string;
+    }
+    string object_number_book_index() const @property {
+      return (o_n_book_index == 0) ? "" : o_n_book_index.to!string;
+    }
+    string object_number_blurb() const @property {
+      return (o_n_blurb == 0) ? "" : o_n_blurb.to!string;
+    }
+    string marked_up_level() const @property {
+      string _out;
+      switch (heading_lev_markup) {
+      case 0  : _out = "A"; break;
+      case 1  : _out = "B"; break;
+      case 2  : _out = "C"; break;
+      case 3  : _out = "D"; break;
+      case 4  : _out = "1"; break;
+      case 5  : _out = "2"; break;
+      case 6  : _out = "3"; break;
+      case 7  : _out = "4"; break;
+      default : _out = "";  break; // "9";
+      }
+      return _out;
+    }
+    string object_number() const @property {
+      return (ocn == 0) ? "" : ocn.to!string;
+    }
+    bool                   object_number_off                    = false;
+    bool                   visible_object_number                = false;
+    int                    object_number_type                   = 0; // { ocn, non, bkidx }
+    /+ node +/
+    string[string][string] node;
+    int                    ocn                                  = 0;
+    string                 identifier                           = "";
+    int                    o_n_type                             = 0;
+    int                    heading_lev_markup                   = 9;
+    int                    heading_lev_collapsed                = 9;
+    bool                   dummy_heading                        = false;
+    int[]                  markedup_ancestors                   = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    int[]                  collapsed_ancestors                  = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    int[]                  dom_structure_markedup_tags_status   = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    int[]                  dom_structure_collapsed_tags_status  = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+    int                    parent_lev_markup                    = 0;
+    int                    parent_ocn                           = 0;
+    int                    last_descendant_ocn                  = 0;
+  }
+  struct ObjGenericComposite {
+    string                 text                                = "";
+    DocObj_MetaInfo_       metainfo;
+    DocObj_TxtAttrib_      attrib;
+    DocObj_Tags_           tags;
+    DocObj_Has_            has;
+    DocObj_Table_          table;
+    DocObj_CodeBlock_      code_block;
+    DocObj_Stow_           stow;
+    DocObj_Pointer_        ptr;
+  }
+  struct _theDoc {
+    ObjGenericComposite[] toc;
+    ObjGenericComposite[] head;
+    ObjGenericComposite[] body;
+    ObjGenericComposite[] bibliography;
+    ObjGenericComposite[] glossary;
+    ObjGenericComposite[] bookindex;
+    ObjGenericComposite[] blurb;
+    ObjGenericComposite[] endnotes;
+  }
+  struct TheObjects {
+    ObjGenericComposite[] oca;
+  }
+  ObjGenericComposite comp_obj_, comp_obj_location, comp_obj_poem_ocn, comp_obj_comment;
+  ObjGenericComposite[] the_document_toc_section, the_document_head_section, the_document_body_section, the_document_endnotes_section, the_document_bibliography_section, the_document_bookindex_section, the_document_glossary_section, the_document_blurb_section, the_document_xml_dom_tail_section;
+  struct OCNset {
+    int digit;
+    int object_number;
+    bool off;
+    string identifier;
+    int bkidx;
+    int type;
+  }
+  struct ST_endnotes {
+    ObjGenericComposite[] endnotes;
+    OCNset                ocn;
+  }
+  struct ST_bookindex {
+    ObjGenericComposite[] bookindex;
+    OCNset                ocn;
+  }
+  struct ST_biblio_section {
+    ObjGenericComposite[]  bibliography_section;
+    string[string][string] tag_assoc;
+  }
+  struct ST_ancestors {
+    ObjGenericComposite[] the_document_body_section;
+    ObjGenericComposite[] the_document_endnotes_section;
+    ObjGenericComposite[] the_document_glossary_section;
+    ObjGenericComposite[] the_document_bibliography_section;
+    ObjGenericComposite[] the_document_bookindex_section;
+    ObjGenericComposite[] the_document_blurb_section;
+  }
+  struct ST_segnames {
+    string[][string]      segnames;
+    int                   html_segnames_ptr_cntr;
+    int                   html_segnames_ptr;
+  }
+  struct  ST_txtPlusHasFootnotes {
+    string           obj_txt;
+    bool             has_notes_reg;
+    bool             has_notes_star;
+    bool             has_notes_plus;
+  }
+  struct ST_txtPlusHasFootnotesUrlsImages {
+    string           obj_txt;
+    bool             has_notes_reg;
+    bool             has_notes_star;
+    bool             has_notes_plus;
+    bool             has_urls;
+    bool             has_images_without_dimensions;
+  }
+  struct ST_txtAndAnchorTagPlusHasFootnotesUrlsImages {
+    string           obj_txt;
+    string           anchor_tag;
+    bool             has_notes_reg;
+    bool             has_notes_star;
+    bool             has_notes_plus;
+    bool             has_links; // use same name
+    bool             has_images_without_dimensions;
+  }
+  struct ST_the_section {
+    ObjGenericComposite[]  comp_section_obj; // array: the heading has 2 members inserted, paras just 1
+    uint[string]           pith;
+    string[string][string] tag_assoc;        // only for headings: html & epub
+  }
+  // book index variables
+  string book_idx_tmp;
+  string[][string][string] bookindex_unordered_hashes;
+  // node
+  struct ST_txt_by_line_common_reset {
+    int[string]     line_occur;
+    string[string]  this_object;
+    uint[string]    pith;
+  }
+  struct ST_txt_by_line_block_start {
+    uint[string]    pith;
+    uint[string]    dochas;
+    string[string]  object_number_poem;
+  }
+  struct ST_txt_by_line_block_generic {
+    uint[string]    pith;
+    string[string]  this_object;
+  }
+  struct ST_txt_by_line_block_poem {
+    int             cntr;
+    uint[string]    pith;
+    string[string]  this_object;
+  }
+  struct ST_txt_by_line_block_biblio {
+    uint[string]    pith;
+    int             bib_entry;
+    string          biblio_entry_str_json;
+    string[]        biblio_arr_json;
+  }
+  struct ST_flow_book_index {
+    string[string]  this_object;
+    uint[string]    pith;
+    string          book_idx_tmp;
+  }
+  struct ST_flow_heading_found {
+    string[string]       heading_match_str;
+    Regex!(char)[string] heading_match_rgx;
+    uint[string]         pith;
+  }
+  struct ST_flow_heading_make_set {
+    char[]          line;
+    uint[string]    pith;
+    string[string]  this_object;
+  }
+  struct ST_flow_para_match {
+    uint[string]    pith;
+    string[string]  this_object;
+    string          this_object_key;
+    int[string]     indent;
+    bool            bullet;
+    int[string]     line_occur;
+  }
+  struct ST_flow_table_array_munge {
+    ObjGenericComposite table_object;
+    string[][]          table_array;
+  }
+  struct ST_flow_table_of_contents_gather_headings {
+    ObjGenericComposite[] the_document_toc_section;
+    string[][string]      lev4_subtoc;
+  }
+  struct ST_flow_bibliography {
+    JSONValue[] biblio_sorted;
+    JSONValue[] bib_arr_json;
+    string[]    biblio_unsorted_incomplete;
+  }
+  struct ST_flow_table_closed_make_special_notation_table {
+    string[string]        this_object;
+    ObjGenericComposite[] the_document_body_section;
+    OCNset                obj_cite_digits;
+    ObjGenericComposite   comp_obj_;
+    int                   cntr;
+    uint[string]          pith;
+  }
+  struct ST_flow_block_flag_line_empty {
+    string[string]           this_object;
+    ObjGenericComposite[]    the_document_body_section;
+    string[][string][string] bookindex_unordered_hashes;
+    OCNset                   obj_cite_digits;
+    ObjGenericComposite      comp_obj_;
+    int                      cntr;
+    uint[string]             pith;
+  }
+  struct ST_flow_table_substantive_munge {
+    ObjGenericComposite  table_object;
+    string               table_substantive;
+  }
+  struct _loopMarkupSrcByLineStruct {
+    ObjGenericComposite[] toc;
+    ObjGenericComposite[] body;
+    ObjGenericComposite[] glossary;
+    ObjGenericComposite[] blurb;
+    string[string]        object_notes;
+    string[][string]      segnames;
+  }
+  enum DocStructMarkupHeading {
+    h_sect_A,
+    h_sect_B,
+    h_sect_C,
+    h_sect_D,
+    h_text_1,
+    h_text_2,
+    h_text_3,
+    h_text_4,
+    h_text_5, // extra level, drop
+    content_non_header
+  } // header section A-D; header text 1-4
+  enum Status { off, on, }
+  enum OCNtype { ocn, non, bkidx, }
+  enum DomTags { none, open, close, close_and_open, open_still, }
+  enum Substitute { match, markup, }
+  static auto eN() {
+    struct _e {
+      enum bi {
+        off,
+        on,
+      }
+      enum ocn {
+        off,
+        on,
+        closing,
+        bkidx,
+        reset,
+      }
+      enum sect {
+        unset,
+        head,
+        toc,
+        substantive,
+        bibliography,
+        glossary,
+        book_index,
+        blurb,
+      }
+      enum txt_is {
+        off,
+        para,
+        heading,
+      }
+      enum blk_is {
+        off,
+        code,
+        poem,
+        block,
+        group,
+        table,
+        quote,
+      }
+      enum blk_state {
+        off,
+        on,
+        closing,
+      }
+      enum blk_delim {
+        off,
+        curly,
+        tic,
+        curly_special,
+        tic_special,
+      }
+    }
+    return _e();
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_show_config.d b/src/sisudoc/meta/metadoc_show_config.d
new file mode 100644
index 0000000..8a6af5d
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_show_config.d
@@ -0,0 +1,232 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc_show_config;
+@safe:
+template spineShowSiteConfig() {
+  void spineShowSiteConfig(O,T)(
+    O opt_action,
+    T config,
+  ) {
+    import
+      sisudoc.meta.defaults,
+      sisudoc.meta.rgx;
+    import
+      std.array,
+      std.exception,
+      std.regex,
+      std.stdio,
+      std.string,
+      std.typecons,
+      std.uni,
+      std.utf,
+      std.conv : to;
+    mixin InternalMarkup;
+    auto markup = InlineMarkup();
+    auto char_repeat_number = 66;
+    if (opt_action.show_config) {
+      writefln(
+        "\n%s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n",
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        "- webserv host name:",
+        config.conf.w_srv_host,
+        "- webserv doc root (part):",
+        config.conf.w_srv_data_root_part,
+        "- webserv doc path:",
+        config.conf.w_srv_data_root_path,
+        "- webserv images (location):",
+        config.conf.w_srv_images_root_part,
+        "- webserv doc root url:",
+        config.conf.w_srv_data_root_url,
+        "- webserv cgi host (host):",
+        config.conf.w_srv_cgi_host,
+        "- webserv cgi host path:",
+        config.conf.w_srv_cgi_bin_path,
+        "- webserv cgi host (part):",
+        config.conf.w_srv_cgi_bin_subpath,
+        "- webserv cgi search script:",
+        config.conf.w_srv_cgi_search_script,
+        "- webserv cgi search script in d:",
+        config.conf.w_srv_cgi_search_script_raw_fn_d,
+        "- webserv cgi port:",
+        config.conf.w_srv_cgi_port,
+        "- webserv cgi user:",
+        config.conf.w_srv_cgi_user,
+        "- webserv cgi url:",
+        config.conf.w_srv_cgi_bin_url,
+        "- webserv cgi action:",
+        config.conf.w_srv_cgi_action,
+        "- webserv cgi title:",
+        config.conf.w_srv_cgi_search_form_title,
+        // "- webserv cgi file links:",
+        // config.conf.w_srv_cgi_file_links,
+        "- webserv sqlite db:",
+        config.conf.w_srv_db_sqlite_filename,
+        "- output path:",
+        config.conf.output_path,
+        "- processing concordance max:",
+        config.conf.processing_concord_max,
+        // "- flag act0:",
+        // config.conf.flag_act0,
+        "- default papersize:",
+        config.conf.set_papersize,
+        "- default text wrap:",
+        config.conf.set_text_wrap,
+        "- default emphasis markup symbol:",
+        config.conf.set_emphasis,
+        "- default language:",
+        config.conf.set_language,
+        "- default hash digest:",
+        config.conf.set_digest,
+        "- search flag:",
+        config.conf.search_flag,
+        "- search action:",
+        config.conf.search_action,
+        "- search db:",
+        config.conf.search_db,
+        "- search title:",
+        config.conf.search_title,
+      );
+    }
+  }
+}
+template spineShowConfig() {
+  void spineShowConfig(T)(
+    T  doc_matters,
+  ) {
+    import
+      sisudoc.meta.defaults,
+      sisudoc.meta.rgx;
+    import
+      std.array,
+      std.exception,
+      std.regex,
+      std.stdio,
+      std.string,
+      std.typecons,
+      std.uni,
+      std.utf,
+      std.conv : to;
+    mixin InternalMarkup;
+    auto markup = InlineMarkup();
+    auto min_repeat_number = 66;
+    auto char_repeat_number = (doc_matters.conf_make_meta.meta.title_full.length
+      + doc_matters.conf_make_meta.meta.creator_author.length + 4);
+    char_repeat_number = (char_repeat_number > min_repeat_number)
+    ? char_repeat_number
+    : min_repeat_number;
+    if (doc_matters.opt.action.show_config
+      && doc_matters.opt.action.debug_do
+    ) {
+      writeln(doc_matters.conf_make_meta.conf);
+    }
+    if (doc_matters.opt.action.show_config) {
+      writefln(
+        "%s\n\"%s\", %s\n%s\n%s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n",
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        doc_matters.conf_make_meta.meta.title_full,
+        doc_matters.conf_make_meta.meta.creator_author,
+        doc_matters.src.filename,
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        "- webserv host name:",
+        doc_matters.conf_make_meta.conf.w_srv_host,
+        "- webserv doc root (part):",
+        doc_matters.conf_make_meta.conf.w_srv_data_root_part,
+        "- webserv doc path:",
+        doc_matters.conf_make_meta.conf.w_srv_data_root_path,
+        "- webserv images (location):",
+        doc_matters.conf_make_meta.conf.w_srv_images_root_part,
+        "- webserv doc root url:",
+        doc_matters.conf_make_meta.conf.w_srv_data_root_url,
+        "- webserv cgi host (host):",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_host,
+        "- webserv cgi host path:",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_bin_path,
+        "- webserv cgi host (part):",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_bin_subpath,
+        "- webserv cgi search script:",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_search_script,
+        "- webserv cgi search script in d:",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_search_script_raw_fn_d,
+        "- webserv cgi url:",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_bin_url,
+        "- webserv cgi action:",
+        doc_matters.conf_make_meta.conf.w_srv_cgi_action,
+        // "- webserv cgi file links:",
+        // doc_matters.conf_make_meta.conf.w_srv_cgi_file_links,
+        "- webserv sqlite db:",
+        doc_matters.conf_make_meta.conf.w_srv_db_sqlite_filename,
+        "- output path:",
+        doc_matters.conf_make_meta.conf.output_path,
+        "- processing concordance max:",
+        doc_matters.conf_make_meta.conf.processing_concord_max,
+        // "- flag act0:",
+        // doc_matters.conf_make_meta.conf.flag_act0,
+        "- default papersize:",
+        doc_matters.conf_make_meta.conf.set_papersize,
+        "- default text wrap:",
+        doc_matters.conf_make_meta.conf.set_text_wrap,
+        "- default emphasis markup symbol:",
+        doc_matters.conf_make_meta.conf.set_emphasis,
+        "- default language:",
+        doc_matters.conf_make_meta.conf.set_language,
+        "- default hash digest:",
+        doc_matters.conf_make_meta.conf.set_digest,
+        "- search flag:",
+        doc_matters.conf_make_meta.conf.search_flag,
+        "- search action:",
+        doc_matters.conf_make_meta.conf.search_action,
+        "- search db:",
+        doc_matters.conf_make_meta.conf.search_db,
+        "- search title:",
+        doc_matters.conf_make_meta.conf.search_title,
+      );
+    }
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_show_make.d b/src/sisudoc/meta/metadoc_show_make.d
new file mode 100644
index 0000000..817f5dc
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_show_make.d
@@ -0,0 +1,123 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc_show_make;
+@safe:
+template spineShowMake() {
+  void spineShowMake(T)(
+    T  doc_matters,
+  ) {
+    import
+      sisudoc.meta.defaults,
+      sisudoc.meta.rgx;
+    import
+      std.array,
+      std.exception,
+      std.regex,
+      std.stdio,
+      std.string,
+      std.typecons,
+      std.uni,
+      std.utf,
+      std.conv : to;
+    mixin InternalMarkup;
+    auto markup = InlineMarkup();
+    auto min_repeat_number = 66;
+    auto char_repeat_number = (doc_matters.conf_make_meta.meta.title_full.length
+      + doc_matters.conf_make_meta.meta.creator_author.length + 4);
+    char_repeat_number = (char_repeat_number > min_repeat_number)
+    ? char_repeat_number
+    : min_repeat_number;
+    if (doc_matters.opt.action.show_make
+      && doc_matters.opt.action.debug_do
+    ) {
+      writeln(doc_matters.conf_make_meta.make);
+    }
+    if (doc_matters.opt.action.show_make) {
+      writefln(
+        "%s\n\"%s\", %s\n%s\n%s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n",
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        doc_matters.conf_make_meta.meta.title_full,
+        doc_matters.conf_make_meta.meta.creator_author,
+        doc_matters.src.filename,
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        "- bold:",
+        doc_matters.conf_make_meta.make.bold,
+        "- breaks:",
+        doc_matters.conf_make_meta.make.breaks,
+        "- cover image:",
+        doc_matters.conf_make_meta.make.cover_image,
+        "- css:",
+        doc_matters.conf_make_meta.make.css,
+        "- emphasis:",
+        doc_matters.conf_make_meta.make.emphasis,
+        "- css:",
+        doc_matters.conf_make_meta.make.css,
+        "- footer:",
+        doc_matters.conf_make_meta.make.footer,
+        "- headings:",
+        doc_matters.conf_make_meta.make.headings,
+        "- home button image:",
+        doc_matters.conf_make_meta.make.home_button_image,
+        "- home button text:",
+        doc_matters.conf_make_meta.make.home_button_text,
+        "- italics:",
+        doc_matters.conf_make_meta.make.italics,
+        "- auto num top at level:",
+        doc_matters.conf_make_meta.make.auto_num_top_at_level,
+        "- auto num top level:",
+        doc_matters.conf_make_meta.make.auto_num_top_lv,
+        "- auto num depth:",
+        doc_matters.conf_make_meta.make.auto_num_depth,
+        "- texpdf font:",
+        doc_matters.conf_make_meta.make.texpdf_font,
+      );
+    }
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_show_metadata.d b/src/sisudoc/meta/metadoc_show_metadata.d
new file mode 100644
index 0000000..320f28b
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_show_metadata.d
@@ -0,0 +1,171 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc_show_metadata;
+@safe:
+template spineShowMetaData() {
+  void spineShowMetaData(T)(
+    T  doc_matters,
+  ) {
+    import
+      sisudoc.meta.defaults,
+      sisudoc.meta.rgx;
+    import
+      std.array,
+      std.exception,
+      std.regex,
+      std.stdio,
+      std.string,
+      std.typecons,
+      std.uni,
+      std.utf,
+      std.conv : to;
+    mixin InternalMarkup;
+    auto markup = InlineMarkup();
+    auto min_repeat_number = 66;
+    auto char_repeat_number = (doc_matters.conf_make_meta.meta.title_full.length
+      + doc_matters.conf_make_meta.meta.creator_author.length + 4);
+    char_repeat_number = (char_repeat_number > min_repeat_number)
+    ? char_repeat_number
+    : min_repeat_number;
+    if (doc_matters.opt.action.show_metadata
+      && doc_matters.opt.action.debug_do
+    ) {
+      writeln(doc_matters.conf_make_meta.meta);
+    }
+    if (doc_matters.opt.action.show_metadata) {
+      writefln(
+        "%s\n\"%s\", %s\n%s\n%s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n%40-s%10-s\n",
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        doc_matters.conf_make_meta.meta.title_full,
+        doc_matters.conf_make_meta.meta.creator_author,
+        doc_matters.src.filename,
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        "- author:",
+        doc_matters.conf_make_meta.meta.creator_author,
+        "- author array:",
+        doc_matters.conf_make_meta.meta.creator_author_arr,
+        "- author surname:",
+        doc_matters.conf_make_meta.meta.creator_author_surname,
+        "- author email:",
+        doc_matters.conf_make_meta.meta.creator_author_email,
+        "- illustrator:",
+        doc_matters.conf_make_meta.meta.creator_illustrator,
+        "- translator:",
+        doc_matters.conf_make_meta.meta.creator_translator,
+        "- title full:",
+        doc_matters.conf_make_meta.meta.title_full,
+        "- title main:",
+        doc_matters.conf_make_meta.meta.title_main,
+        "- title sub:",
+        doc_matters.conf_make_meta.meta.title_subtitle,
+        "- title edition:",
+        doc_matters.conf_make_meta.meta.title_edition,
+        "- title language:",
+        doc_matters.conf_make_meta.meta.title_language,
+        "- title note:",
+        doc_matters.conf_make_meta.meta.title_note,
+        "- classify dewey:",
+        doc_matters.conf_make_meta.meta.classify_dewey,
+        "- classify library of congress:",
+        doc_matters.conf_make_meta.meta.classify_loc,
+        "- classify keywords:",
+        doc_matters.conf_make_meta.meta.classify_keywords,
+        "- classify topic register:",
+        doc_matters.conf_make_meta.meta.classify_topic_register,
+        "- date added to site:",
+        doc_matters.conf_make_meta.meta.date_added_to_site,
+        "- date available:",
+        doc_matters.conf_make_meta.meta.date_available,
+        "- date created:",
+        doc_matters.conf_make_meta.meta.date_created,
+        "- date issued:",
+        doc_matters.conf_make_meta.meta.date_issued,
+        "- date modified:",
+        doc_matters.conf_make_meta.meta.date_modified,
+        "- date published:",
+        doc_matters.conf_make_meta.meta.date_published,
+        "- date valid:",
+        doc_matters.conf_make_meta.meta.date_valid,
+        // links
+        "- notes abstract:",
+        doc_matters.conf_make_meta.meta.notes_abstract,
+        "- notes description:",
+        doc_matters.conf_make_meta.meta.notes_description,
+        "- original language:",
+        doc_matters.conf_make_meta.meta.original_language,
+        "- original language character:",
+        doc_matters.conf_make_meta.meta.original_language_char,
+        "- original source:",
+        doc_matters.conf_make_meta.meta.original_source,
+        "- original title:",
+        doc_matters.conf_make_meta.meta.original_title,
+        // publisher
+        "- rights copyright:",
+        doc_matters.conf_make_meta.meta.rights_copyright,
+        "- rights copyright text:",
+        doc_matters.conf_make_meta.meta.rights_copyright_text,
+        "- rights copyright audio:",
+        doc_matters.conf_make_meta.meta.rights_copyright_audio,
+        "- rights copyright cover:",
+        doc_matters.conf_make_meta.meta.rights_copyright_cover,
+        "- rights copyright illustrations:",
+        doc_matters.conf_make_meta.meta.rights_copyright_illustrations,
+        "- rights copyright photographs:",
+        doc_matters.conf_make_meta.meta.rights_copyright_photographs,
+        "- rights copyright translation:",
+        doc_matters.conf_make_meta.meta.rights_copyright_translation,
+        "- rights copyright video:",
+        doc_matters.conf_make_meta.meta.rights_copyright_video,
+        "- rights license:",
+        doc_matters.conf_make_meta.meta.rights_license,
+      );
+    }
+  }
+}
diff --git a/src/sisudoc/meta/metadoc_show_summary.d b/src/sisudoc/meta/metadoc_show_summary.d
new file mode 100644
index 0000000..379a1a7
--- /dev/null
+++ b/src/sisudoc/meta/metadoc_show_summary.d
@@ -0,0 +1,162 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta.metadoc_show_summary;
+@safe:
+template spineMetaDocSummary() {
+  void spineMetaDocSummary(S,T)(
+    const S  doc_abstraction,
+          T  doc_matters,
+  ) {
+    import
+      sisudoc.meta.defaults,
+      sisudoc.meta.rgx;
+    import
+      std.array,
+      std.exception,
+      std.regex,
+      std.stdio,
+      std.string,
+      std.typecons,
+      std.uni,
+      std.utf,
+      std.conv : to;
+    mixin InternalMarkup;
+    auto markup = InlineMarkup();
+    auto min_repeat_number = 66;
+    auto char_repeat_number = (doc_matters.conf_make_meta.meta.title_full.length
+      + doc_matters.conf_make_meta.meta.creator_author.length + 4);
+    char_repeat_number = (char_repeat_number > min_repeat_number)
+    ? char_repeat_number
+    : min_repeat_number;
+    if (doc_matters.opt.action.vox_gt1
+    || doc_matters.opt.action.show_summary) {
+      string[string] check = [
+        "last_object_number" : "NA [debug \"checkdoc\" not run]",
+        "last_object_number_body"  : "0",
+        "last_object_number_book_index" : "0",
+      ];
+      foreach (k; doc_matters.has.keys_seq.seg) {
+        foreach (obj; doc_abstraction[k]) {
+          if (obj.metainfo.is_of_part != "empty") {
+            if (!empty(obj.metainfo.object_number)) {
+              if (k == "body") {
+                check["last_object_number_body"] = obj.metainfo.object_number;
+              }
+              if (!(obj.metainfo.object_number.empty)) {
+                check["last_object_number"] = obj.metainfo.object_number;
+              }
+            }
+            if (k == "bookindex") {
+              if (obj.metainfo.object_number_type == 2) {
+                check["last_object_number_book_index"] = obj.metainfo.object_number_book_index;
+              }
+            }
+          }
+        }
+      }
+      writefln(
+        "%s\n\"%s\", %s\n%s [%s]\n%s\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%40-s%10-d\n%s",
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        doc_matters.conf_make_meta.meta.title_full,
+        doc_matters.conf_make_meta.meta.creator_author,
+        doc_matters.src.filename,
+        doc_matters.src.language,
+        markup.repeat_character_by_number_provided("-", char_repeat_number),
+        "- toc arr length:",
+        to!int(doc_abstraction["toc"].length),
+        "- doc_abstraction arr length:",
+        to!int(doc_abstraction["body"].length),
+        "  doc body last obj on.#:",
+        to!int(check["last_object_number_body"]),
+        "  - number of tables:",
+        doc_matters.has.tables,
+        "  - number of codeblocks:",
+        doc_matters.has.codeblocks,
+        "  - number of poems:",
+        doc_matters.has.poems,
+        "  - number of blocks:",
+        doc_matters.has.blocks,
+        "  - number of groups:",
+        doc_matters.has.groups,
+        "  - number of images:",
+        doc_matters.has.images,
+        "- endnotes length:",                                // subtract headings
+        (doc_abstraction["endnotes"].length > 2)
+        ? (to!int(doc_abstraction["endnotes"].length - 2))
+        : 0,
+        "- glossary length:",
+        (doc_abstraction["glossary"].length > 1)
+        ? (to!int(doc_abstraction["glossary"].length))
+        : 0,
+        "- biblio length:",
+        (doc_abstraction["bibliography"].length > 1)
+        ? (to!int(doc_abstraction["bibliography"].length))
+        : 0,
+        "- bookindex length:",
+        (doc_abstraction["bookindex"].length > 1)
+        ? (to!int(doc_abstraction["bookindex"].length))
+        : 0,
+        "  book idx last obj on.#:",
+        to!int(check["last_object_number_book_index"]),
+        "- blurb length:",
+        (doc_abstraction["blurb"].length > 1)
+        ? (to!int(doc_abstraction["blurb"].length))
+        : 0,
+        "* last obj on.#:",
+        to!int(check["last_object_number"]),
+        "number of segments:",
+        (doc_matters.has.segnames_lv4.length > 1)
+        ? (to!int(doc_matters.has.segnames_lv4.length))
+        : 0,
+        markup.repeat_character_by_number_provided("-", min_repeat_number),
+      );
+    }
+  }
+}
diff --git a/src/sisudoc/meta/package.d b/src/sisudoc/meta/package.d
new file mode 100644
index 0000000..1926eb6
--- /dev/null
+++ b/src/sisudoc/meta/package.d
@@ -0,0 +1,64 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.meta;
+public import
+  sisudoc.meta.defaults;
+/+ std +/
+public import
+  std.array,
+  std.exception,
+  std.range,
+  std.regex,
+  std.stdio,
+  std.string,
+  std.typecons,
+  // std.uni,
+  std.utf,
+  std.conv : to;
diff --git a/src/sisudoc/meta/rgx.d b/src/sisudoc/meta/rgx.d
new file mode 100644
index 0000000..0b5f9f0
--- /dev/null
+++ b/src/sisudoc/meta/rgx.d
@@ -0,0 +1,270 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  regex: regular expressions used in sisu document parser
++/
+module sisudoc.meta.rgx;
+@safe:
+static template spineRgxIn() {
+  static struct RgxI {
+    /+ misc +/
+    static flag_action                                    = ctRegex!(`^(--[a-z][a-z0-9-]+)$`);
+    static within_quotes                                  = ctRegex!(`"(.+?)"`, "m");
+    static make_heading_delimiter                         = ctRegex!(`[;][ ]*`);
+    static arr_delimiter                                  = ctRegex!(`[ ]*[;][ ]*`);
+    static name_delimiter                                 = ctRegex!(`^([^,]+)[ ]*,[ ]+(.+?)$`);
+    static book_index_go                                  = ctRegex!("(?P<link>(?P<ocn>[0-9]+)(?:-[0-9]+)?)");
+    static trailing_comma                                 = ctRegex!(",[ ]*$");
+    static trailing_linebreak                             = ctRegex!(",[ ]{1,2}\\\\\\\\\n[ ]{4}$","m");
+    static newline_eol_strip_preceding                    = ctRegex!("[ ]*\n");
+    static newline_eol_delimiter_only                     = ctRegex!("^\n");
+    static markup_inline_linebreak                        = ctRegex!(`\s*\\\\s*`, "m");
+    static para_delimiter                                 = ctRegex!("\n[ ]*\n+");
+    static table_col_delimiter                            = ctRegex!("[ ]*\n+", "mg");
+    static table_row_delimiter                            = ctRegex!("\n[ ]*\n+", "mg");
+    static table_row_delimiter_special                    = ctRegex!("[ ]*\n", "mg");
+    static table_col_delimiter_special                    = ctRegex!("[ ]*[|][ ]*", "mg");
+    static levels_numbered                                = ctRegex!(`^[0-9]$`);
+    static levels_numbered_headings                       = ctRegex!(`^[0-7]$`);
+    static numeric_col                                    = ctRegex!(`^[ 0-9,.%$£₤Є€€¥()-]+$`);
+    /+ comments +/
+    static comment                                        = ctRegex!(`^%+ `);
+    /+ header +/
+    /+ header +/
+    static variable_doc_title_author_date           = ctRegex!(`@title-author-date`);
+    static variable_doc_title_author                = ctRegex!(`@title-author`);
+    static variable_doc_title                       = ctRegex!(`@title`);
+    static variable_doc_author                      = ctRegex!(`@author|@creator`);
+    static variable_doc_date                        = ctRegex!(`@date`);
+    static raw_author_munge                         = ctRegex!(`(?P<last>\S.+?),\s+(?P<first>.+)`,"i");
+    static yaml_config                              = ctRegex!(`^[a-z]+\s*:\s*(?:"?\w|$)`, "m");
+    /+ heading operators +/
+    static heading_a                                = ctRegex!(`^:?[A][~] `, "m");
+    static heading                                  = ctRegex!(`^:?([A-D1-4])[~]([a-z0-9_.-]*[?]?)\s+`,"i");
+    static headings                                 = ctRegex!(`^:?(?P<level>[A-D1-4])[~](?:[a-z0-9_.-]*[?]?|[!](?:glossary|bibliogrphy|biblio|references?|blurb))(?:\s|$)`,"i");
+    static heading_seg_and_above                    = ctRegex!(`^:?([A-D1])[~]([a-z0-9_.-]*[?]?)\s+`,"i");
+    static heading_anchor_tag                       = ctRegex!(`^:?[A-D1-4][~](?P<anchor>[a-z0-9_.-]+) `,"i");
+    static heading_identify_anchor_tag              = ctRegex!(`^:?[A-D1-4][~]\s+(?:(?:(?:chapter|article|section|clause)\s+[0-9.]+)|(?:[0-9]+))`,"i");
+    static heading_extract_named_anchor_tag         = ctRegex!(`^:?[A-D1-4][~]\s+(chapter|article|section|clause)\s+((?:[0-9]+[.:])*[0-9]+)(?=[.:;, ]|$)`,"i");
+    static heading_extract_unnamed_anchor_tag       = ctRegex!(`^:?[A-D1-4][~]\s+((?:[0-9]+.)*[0-9]+)(?=[.:;, ]|$)`);
+    static heading_marker_missing_tag               = ctRegex!(`^:?([A-D1-4])[~] `);
+    static heading_anchor_tag_plus_colon            = ctRegex!(`^:?([A-D1-4][~])([a-z0-9_.:-]+) `,"i");
+    static heading_marker_tag_has_colon             = ctRegex!(`([:])`);
+    static heading_biblio                           = ctRegex!(`^1[~][!](biblio(?:graphy)?|references?)`);
+    static heading_glossary                         = ctRegex!(`^1[~][!](glossary)`);
+    static heading_blurb                            = ctRegex!(`^1[~][!](blurb)`);
+    /+ paragraph operators +/
+    static para_bullet                              = ctRegex!(`^_[*] `);
+    static para_bullet_indent                       = ctRegex!(`^_(?P<indent>[1-9])[*] `);
+    static para_indent                              = ctRegex!(`^_(?P<indent>[1-9])[ ]`);
+    static para_indent_hang                         = ctRegex!(`^_(?P<hang>[0-9])_(?P<indent>[0-9])[ ]`);
+    static para_attribs                             = ctRegex!(`^_(?:(?:[0-9])(?:_([0-9]))?|(?:[1-9])?[*]) `);
+    static para_inline_link_anchor                  = ctRegex!(`\*[~](?P<anchor>[a-z0-9_.-]+)(?= |$)`,"i");
+    /+ blocked markup +/
+    static block_open                               = ctRegex!("^((code(?:[.][a-z][0-9a-z#+_]+)?|(?:poem|group|block|quote)(?:[.][a-z][0-9a-z_]+)?|table)(?:[(][ a-zA-Z0-9;:,]*[)])?[{][ ]*$)|^`{3} (code(?:[.][a-z][0-9a-z#+_]+)?|(?:poem|group|block|quote)(?:[.][a-z][0-9a-z_]+)?|table)(?:[(][ a-zA-Z0-9;:,]*[)])?|^[{]table[(](?:h;)?(?P<columns>(?:[ ,]+[0-9]+)+)[)][}]");
+    static block_poem_open                          = ctRegex!("^((poem(?:[(][ a-zA-Z0-9;:,]*[)])?[{][ ]*$)|`{3} poem(?:[(][ a-zA-Z0-9;:,]*[)])?)");
+    /+ blocked markup tics +/
+    static block_tic_code_open                      = ctRegex!("^`{3} code(?:[.](?P<syntax>[a-z][0-9a-z#+_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?");
+    static block_tic_poem_open                      = ctRegex!("^`{3} poem(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?");
+    static block_tic_group_open                     = ctRegex!("^`{3} group(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?");
+    static block_tic_block_open                     = ctRegex!("^`{3} block(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?");
+    static block_tic_quote_open                     = ctRegex!("^`{3} quote(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?");
+    static block_tic_table_open                     = ctRegex!("^`{3} table(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?"); // ctRegex!("^`{3} table(?:\(.*?\))?");
+    static block_tic_close                          = ctRegex!("^(`{3})$","m");
+    /+ blocked markup curly +/
+    static block_curly_code_open                    = ctRegex!(`^(?:code(?:[.](?P<syntax>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?[{][ ]*$)`);
+    static block_curly_code_close                   = ctRegex!(`^([}]code)`);
+    static block_curly_poem_open                    = ctRegex!(`^(poem(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?[{][ ]*$)`);
+    static block_curly_poem_close                   = ctRegex!(`^([}]poem)`);
+    static block_curly_group_open                   = ctRegex!(`^(group(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?[{][ ]*$)`);
+    static block_curly_group_close                  = ctRegex!(`^([}]group)`);
+    static block_curly_block_open                   = ctRegex!(`^(block(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?[{][ ]*$)`);
+    static block_curly_block_close                  = ctRegex!(`^([}]block)`);
+    static block_curly_quote_open                   = ctRegex!(`^(quote(?:[.](?P<lang>[a-z][0-9a-z_]+))?(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?[{][ ]*$)`);
+    static block_curly_quote_close                  = ctRegex!(`^([}]quote)`);
+    static block_curly_table_open                   = ctRegex!(`^table(?:[(](?P<attrib>[ a-zA-Z0-9;:,]*)[)])?[{][ ]*$`);
+    static block_curly_table_close                  = ctRegex!(`^([}]table)`);
+    static block_curly_table_special_markup         = ctRegex!(`^[{]table[(](?P<attrib>(?:(h);)?(?P<columns>(?:[, ]+[0-9]+)+))[)][}]`, "mg");
+    static code_numbering                           = ctRegex!(`(?P<number>\blinenumber\b|\bnumber\b|\blnr\b)`);
+    static table_head_instructions                  = ctRegex!(`(?:(?P<c_heading>h);)?(?:[ ]+c(?P<c_num>[0-9]):)?(?P<c_widths>(?:[, ]+[0-9]+[lr]?)+)`);
+    static table_col_widths_and_alignment           = ctRegex!(`(?P<width>[0-9]+)(?P<align>[lr]?)`);
+    static table_col_widths                         = ctRegex!(`(?P<widths>[0-9]+)`);
+    static table_col_align_match                    = ctRegex!(`(?P<align>[lr])`);
+    static table_col_separator_nl                   = ctRegex!(`[┊]$`, "mg");
+    /+ inline markup footnotes endnotes +/
+    static inline_notes_curly_gen                   = ctRegex!(`~\{.+?\}~`, "m");
+    static inline_notes_curly                       = ctRegex!(`~\{\s*(.+?)\}~`, "mg");
+    static inline_notes_curly_sp_asterisk           = ctRegex!(`~\{[*]+\s+(.+?)\}~`, "m");
+    static inline_notes_curly_sp_plus               = ctRegex!(`~\{[+]+\s+(.+?)\}~`, "m");
+    static note_ref                                 = ctRegex!(`^\S+?noteref_(?P<ref>[0-9]+)`, "mg");     // {^{73.}^}#noteref_73
+    static smid_inline_url_generic                        = ctRegex!(`(?:^|[}(\[ ])(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)[a-zA-Z0-9_#]`, "mg");
+    static smid_inline_url                                = ctRegex!(`((?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)[a-zA-Z0-9_]\S*)`, "mg");
+    static smid_inline_link_naked_url                     = ctRegex!(`(?P<pre>^|[ (\[])(?P<link>(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤)\S+?)(?=[.,;:?!'"]?([ )\]]|$))`, "mg");
+    static smid_inline_link_markup_regular                = ctRegex!(`(?P<pre>^|[ (\[])\{\s*(?P<content>.+?)\s*\}(?P<link>(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)\S+?)(?=[;:!,?.]?([ )\]]|$))`, "mg");
+    static smid_inline_link_endnote_url_helper_punctuated = ctRegex!(`\{~\^\s+(?P<content>.+?)\}(?P<link>(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)\S+?)(?=[.,;:?!]?([ ]|$))`, "mg");
+    static smid_inline_link_endnote_url_helper            = ctRegex!(`\{~\^\s+(?P<content>.+?)\}(?P<link>(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)\S+)`, "mg");
+    static image                                    = ctRegex!(`([a-zA-Z0-9._-]+?\.(?:png|gif|jpg))`, "mg");
+    static smid_image                               = ctRegex!(`(?P<pre>(?:^|[ ])[{┥](?:~\^\s+|\s*))(?P<image>[a-zA-Z0-9._-]+?\.(?:png|gif|jpg))(?P<post>(?:.*?)\s*[}┝](?:image|┤.*?├|(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)\S+?)(?=[;:!,?.]?([ )\]]|$)))`, "mg");
+    static smid_image_generic                       = ctRegex!(`(?:^|[ ])[{┥](?:~\^\s+|\s*)\S+\.(?:png|gif|jpg).*?[}┝](?:image|┤.*?├|(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)\S+?)(?=[;:!,?.]?([ )\]]|$))`, "mg");
+    static smid_image_with_dimensions               = ctRegex!(`(?P<pre>(?:^|[ ])[{┥](?:~\^\s+|\s*))(?P<image>[a-zA-Z0-9._-]+?\.(?:png|gif|jpg))\s+(?P<width>\d+)x(?P<height>\d+)\s*(?P<post>(?:.*?)\s*[}┝](?:image|┤.*?├|(?:(?:https?|git):\/\/|¤?\.\.\/|¤?\.\/|¤|#)\S+?)(?=[;:!,?.]?([ )\]]|$)))`, "mg");
+    static smid_mod_image_without_dimensions        = ctRegex!(`[{┥](?:~\^\s+|\s*)☼\S+\.(?:png|gif|jpg),w0h0.*[}┝](?:image|┤.*?├|(?:https?|git):\/\/\S+?)(?=[;:!,?.]?([ )\]]|$))`, "mg");
+    static smid_image_delimit                       = ctRegex!(`(?P<pre>^|[ ])\{\s*(?P<text>.+?)\s*\}(?:image)(?=[;:!,?.]?([ )\]]|$))`, "mg");
+    /+ inline markup book index +/
+    static book_index_item                          = ctRegex!(`^=\{\s*(?P<bookindex>.+?)\}$`, "m");
+    static book_index_item_open                     = ctRegex!(`^=\{\s*([^}]*?)$`);
+    static book_index_item_close                    = ctRegex!(`^(.*?)\}$`, "m");
+    static auto_heading_numbering_lv1               = ctRegex!(`^1~`, "m");
+    static auto_heading_numbering_off_lv1           = ctRegex!(`^1~\S*?-\s`, "m");
+    static auto_heading_numbering_off_lv2           = ctRegex!(`^2~\S*?-\s`, "m");
+    static auto_heading_numbering_off_lv3           = ctRegex!(`^3~\S*?-\s`, "m");
+    static auto_heading_numbering_off_lv4           = ctRegex!(`^4~\S*?-\s`, "m");
+    /+ no object_number object +/
+    static object_number_off                        = ctRegex!(`~#[ ]*$`, "m");
+    static object_number_off_dummy_heading          = ctRegex!(`-#$`, "m");
+    static object_number_off_all                    = ctRegex!(`[~-]#$`, "m");
+    static repeated_character_line_separator        = ctRegex!(`^(?:[ ]*(?:(?:[.][ ]*){4,}|(?:[-][ ]*|[~][ ]*|[*][ ]*|[$][ ]*|[#][ ]*|[\\][ ]*|[/][ ]*){2,})\s*?)+$`);
+    /+ no object_number block +/
+    static object_number_off_block                  = ctRegex!(`^--~#$`);
+    static object_number_off_block_dummy_heading    = ctRegex!(`^---#$`);
+    static object_number_off_block_close            = ctRegex!(`^--\+#$`);
+    static object_number_block_marks                = ctRegex!(`^--[+~-]#$`);
+    /+ ignore outside code blocks +/
+    static skip_from_regular_parse                  = ctRegex!(`^(--[+~-]#|-[\\]{2}-|=[.\\]{2}=)$`);
+    /+ line & page breaks +/
+    static break_string                             = ctRegex!(`』`);
+    /+ biblio tags +/
+    static biblio_tags                              = ctRegex!(`^(is|au|author_raw|author|author_arr|editor_raw|ed|editor_arr|ti|title|subtitle|fulltitle|lng|language|trans|src|jo|journal|in|vol|volume|edn|edition|yr|year|pl|place|pb|pub|publisher|url|pg|pages|note|short_name|id):\s+(.+)`);
+    static biblio_abbreviations                     = ctRegex!(`^(au|ed|ti|lng|jo|vol|edn|yr|pl|pb|pub|pg|pgs|sn)$`);
+    /+ bookindex split +/
+    static bi_main_terms_split                            = ctRegex!(`\s*;\s*`);
+    static bi_main_term_plus_rest_split                   = ctRegex!(`\s*:\s*`);
+    static bi_sub_terms_plus_object_number_offset_split   = ctRegex!(`\s*\|\s*`);
+    static bi_term_and_object_numbers_match               = ctRegex!(`^(.+?)\+(\d+)`);
+    static topic_register_main_terms_split          = ctRegex!(`\s*;\s*`);
+    static topic_register_main_term_plus_rest_split = ctRegex!(`\s*:\s*`);
+    static topic_register_sub_terms_split           = ctRegex!(`\s*\|\s*`);
+    static topic_register_multiple_sub_terms_split  = ctRegex!(`␣([^|␣]+(?:\|[^|␣]+)+)`);
+    static newline                                  = ctRegex!("\n", "mg");
+    static space                                    = ctRegex!(`[ ]`, "mg");
+    static spaces_keep                              = ctRegex!(`(?P<keep_spaces>^[ ]+|[ ]{2,})`, "mg"); // code, verse, block
+    static spaces_line_start                        = ctRegex!(`^(?P<opening_spaces>[ ]+)`, "mg");
+    static nbsp_char                                = ctRegex!(`░`, "mg");
+    static nbsp_chars                               = ctRegex!(`[░]+`, "mg");
+    static middle_dot                               = ctRegex!(`·`, "mg");
+    static src_pth_sst_or_ssm                       = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.](?P<extension>ss[tm]))$`);
+    static src_pth_pod_sst_or_ssm                   = ctRegex!(`^(?P<podpath>[/]?(?:[a-zA-Z0-9._-]+/)*)media/text/[a-z]{2}/(?P<filename>[a-zA-Z0-9][a-zA-Z0-9._-]*?[.]ss[tm])$`);
+    static src_pth_contents                         = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9][a-zA-Z0-9._-]*)/pod[.]manifest$`);
+    static src_pth_zip                              = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]zip)$`);
+    static src_pth_types                            = ctRegex!(`^(?P<path>[/]?[a-zA-Z0-9._-]+/)*(?P<gotfile>(?P<filename>[a-zA-Z0-9._-]+[.]ss[tm])|(?P<filelist>[a-zA-Z0-9._-]+/pod[.]manifest)|(?P<filezip>[a-zA-Z0-9._-]+[.]zip))$`);
+    static src_fn                                   = ctRegex!(`^([/]?(?:[a-zA-Z0-9._-]+/)*)(?P<fn_src>(?P<fn_base>[a-zA-Z0-9._-]+)[.](?P<fn_src_suffix>ss[tm]))$`);
+    static src_fn_master                            = ctRegex!(`^(?P<path>/?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]ssm)$`);
+    static src_fn_find_inserts                      = ctRegex!(`^(?P<path>/?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]ss[im])$`);
+    static insert_src_fn_ssi_or_sst                 = ctRegex!(`^<<\s*(?P<path>[a-zA-Z0-9._-]+/)*(?P<filename>[a-zA-Z0-9._-]+[.]ss[ti])$`);
+    static src_base_parent_dir_name                 = ctRegex!(`[/](?P<dir>(?:[a-zA-Z0-9._-]+))(?:/media/text/[a-z]{2})$`); // formalizes dir structure
+    static src_formalised_file_path_parts           = ctRegex!(`(?P<pth>(?:[/a-zA-Z0-9._-]+?)(?P<dir>[a-zA-Z0-9._-]+))(?:/media/text/[a-z]{2})$`); // formalizes dir structure
+    /+ line breaks +/
+    static br_empty_line                            = ctRegex!(`\n[ ]*\n`, "mg");
+    static br_linebreaks_newlines                   = ctRegex!(`[\n┘┙]`, "mg");
+    static br_linebreaks                            = ctRegex!(`[┘┙]`, "mg");
+    static br_line                                  = ctRegex!(`┘`, "mg");
+    static br_line_inline                           = ctRegex!(`┙`, "mg");
+    static br_line_spaced                           = ctRegex!(`┚`, "mg");
+    /+ inline markup footnotes endnotes +/
+    static inline_notes_al                          = ctRegex!(`【(?:[*+]\s+|\s*)(.+?)】`, "mg");
+    static inline_notes_al_special                  = ctRegex!(`【(?:[*+]\s+)(.+?)】`, "mg"); // TODO remove match when special footnotes are implemented
+    static inline_notes_al_gen                      = ctRegex!(`【.+?】`, "m");
+    static inline_notes_al_gen_text                 = ctRegex!(`【(?P<text>.+?)】`, "m");
+    static inline_notes_al_all_note                 = ctRegex!(`【(?P<num>\d+|(?:[*]|[+])+)\s+(?P<note>.+?)\s*】`, "mg");
+    static inline_notes_al_regular_number_note      = ctRegex!(`【(?P<num>\d+)\s+(?P<note>.+?)\s*】`, "mg");
+    static inline_notes_al_special_char_note        = ctRegex!(`【(?P<char>(?:[*]|[+])+)\s+(?P<note>.+?)】`, "mg");
+    static inline_al_delimiter_open_regular         = ctRegex!(`【\s`, "m");
+    static inline_al_delimiter_open_symbol_star     = ctRegex!(`【[*]\s`, "m");
+    static inline_al_delimiter_open_symbol_plus     = ctRegex!(`【[+]\s`, "m");
+    static inline_text_and_note_al_                 = ctRegex!(`(.+?(?:【[*+]*\s+.+?】|.+))`, "mg");
+    /+ inline markup links +/
+    static inline_image                             = ctRegex!(`(?P<pre>┥)☼(?P<imginf>(?P<img>[a-zA-Z0-9._-]+?\.(?:jpg|gif|png)),w(?P<width>\d+)h(?P<height>\d+))\s*(?P<post>.*?┝┤.*?├)`, "mg");
+    static inline_image_without_dimensions          = ctRegex!(`(?P<pre>┥)☼(?P<imginf>(?P<img>[a-zA-Z0-9._-]+?\.(?:jpg|gif|png)),w(?P<width>0)h(?P<height>0))\s*(?P<post>.*?┝┤.*?├)`, "mg");
+    static inline_image_info                        = ctRegex!(`☼?(?P<img>[a-zA-Z0-9._-]+?\.(?:jpg|gif|png)),w(?P<width>\d+)h(?P<height>\d+)`, "mg");
+    static inline_link_anchor                       = ctRegex!(`┃(?P<anchor>\S+?)┃`, "mg"); // TODO *~text_link_anchor
+    static inline_link                              = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>#?(\S+?))├`, "mg");
+    static inline_link_empty                        = ctRegex!(`┥(?P<text>.+?)┝┤├`, "mg");
+    static inline_link_number                       = ctRegex!(`┥(?P<text>.+?)┝┤(?P<num>[0-9]+)├`, "mg"); // not used
+    static inline_link_number_only                  = ctRegex!(`(?P<linked_text>┥.+?┝)┤(?P<num>[0-9]+)├`, "mg");
+    static inline_link_stow_uri                     = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>[^ 0-9#┥┝┤├][^ 0-9┥┝┤├]+)├`, "mg"); // will not stow (stowed links) or object number internal links
+    static inline_link_hash                         = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>#(?P<hash>\S+?))├`, "mg");
+    static inline_link_seg_and_hash                 = ctRegex!(`┥(?P<text>.+?)┝┤(?P<link>(?P<seg>[^/#├]*)#(?P<hash>.+?))├`, "mg");
+    static inline_link_clean                        = ctRegex!(`┤(?:.+?)├|[┥┝]`, "mg");
+    static inline_link_toc_to_backmatter            = ctRegex!(`┤#(?P<link>endnotes|bibliography|bookindex|glossary|blurb)├`, "mg");
+    static url                                      = ctRegex!(`https?://`, "mg");
+    static uri                                      = ctRegex!(`(?:https?|git)://`, "mg");
+    static uri_identify_components                  = ctRegex!(`(?P<type>(?:https?|git)://)(?P<path>\S+?/)(?P<file>[^/]+)$`, "mg");
+    static inline_link_subtoc                       = ctRegex!(`^(?P<level>[5-7])~ ┥(?P<text>.+?)┝┤(?P<link>.+?)├`, "mg");
+    static inline_link_fn_suffix                    = ctRegex!(`¤(.+?)(\.fnSuffix)`, "mg");
+    static inline_seg_link                          = ctRegex!(`(¤)(?:.+?)\.fnSuffix`, "mg");
+    static mark_internal_site_lnk                   = ctRegex!(`¤`, "mg");
+    static quotation_mark_sql_insert_delimiter      = ctRegex!("[']", "mg");
+    /+ inline markup font face mod +/
+    static inline_mark_emphasis                     = ctRegex!(`(?P<mark>[*])\{(?P<text>.+?)\}[*]`, "mg");
+    static inline_mark_bold                         = ctRegex!(`(?P<mark>[!])\{(?P<text>.+?)\}[!]`, "mg");
+    static inline_mark_underscore                   = ctRegex!(`(?P<mark>[_])\{(?P<text>.+?)\}[_]`, "mg");
+    static inline_mark_italics                      = ctRegex!(`(?P<mark>[/])\{(?P<text>.+?)\}[/]`, "mg");
+    static inline_mark_superscript                  = ctRegex!(`(?P<mark>\^)\{(?P<text>.+?)\}\^`, "mg");
+    static inline_mark_subscript                    = ctRegex!(`(?P<mark>[,])\{(?P<text>.+?)\}[,]`, "mg");
+    static inline_mark_strike                       = ctRegex!(`(?P<mark>[-])\{(?P<text>.+?)\}[-]`, "mg");
+    static inline_mark_insert                       = ctRegex!(`(?P<mark>[+])\{(?P<text>.+?)\}[+]`, "mg");
+    static inline_mark_mono                         = ctRegex!(`(?P<mark>[#])\{(?P<text>.+?)\}[#]`, "mg");
+    static inline_mark_cite                         = ctRegex!(`(?P<mark>["])\{(?P<text>.+?)\}["]`, "mg");
+    static inline_faces_line                        = ctRegex!(`^[*!/_]_ (?P<text>.+?)((?: [\\]{2}|[~]#){0,2}$)`);
+    static inline_emphasis_line                     = ctRegex!(`^\*_ (?P<text>.+?)(?P<tail>(?: [\\]{2}|[~]#){0,2}$)`);
+    static inline_bold_line                         = ctRegex!(`^!_ (?P<text>.+?)(?P<tail>(?: [\\]{2}|[~]#){0,2}$)`);
+    static inline_italics_line                      = ctRegex!(`^/_ (?P<text>.+?)(?P<tail>(?: [\\]{2}|[~]#){0,2}$)`);
+    static inline_underscore_line                   = ctRegex!(`^__ (?P<text>.+?)(?P<tail>(?: [\\]{2}|[~]#){0,2}$)`);
+  }
+}
diff --git a/src/sisudoc/meta/rgx_files.d b/src/sisudoc/meta/rgx_files.d
new file mode 100644
index 0000000..05db651
--- /dev/null
+++ b/src/sisudoc/meta/rgx_files.d
@@ -0,0 +1,72 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  regex: regular expressions used in sisu document parser
++/
+module sisudoc.meta.rgx_files;
+@safe:
+static template spineRgxFiles() {
+  static struct RgxFiles {
+    static src_pth_sst_or_ssm                       = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.](?P<extension>ss[tm]))$`);
+    static src_pth_pod_sst_or_ssm                   = ctRegex!(`^(?P<podpath>[/]?(?:[a-zA-Z0-9._-]+/)*)media/text/[a-z]{2}/(?P<filename>[a-zA-Z0-9][a-zA-Z0-9._-]*?[.]ss[tm])$`);
+    static src_pth_contents                         = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9][a-zA-Z0-9._-]*)/pod[.]manifest$`);
+    static src_pth_zip                              = ctRegex!(`^(?P<path>[/]?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]zip)$`);
+    static src_pth_types                            = ctRegex!(`^(?P<path>[/]?[a-zA-Z0-9._-]+/)*(?P<gotfile>(?P<filename>[a-zA-Z0-9._-]+[.]ss[tm])|(?P<filelist>[a-zA-Z0-9._-]+/pod[.]manifest)|(?P<filezip>[a-zA-Z0-9._-]+[.]zip))$`);
+    static src_fn                                   = ctRegex!(`^([/]?(?:[a-zA-Z0-9._-]+/)*)(?P<fn_src>(?P<fn_base>[a-zA-Z0-9._-]+)[.](?P<fn_src_suffix>ss[tm]))$`);
+    static src_fn_master                            = ctRegex!(`^(?P<path>/?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]ssm)$`);
+    static src_fn_find_inserts                      = ctRegex!(`^(?P<path>/?(?:[a-zA-Z0-9._-]+/)*)(?P<filename>[a-zA-Z0-9._-]+[.]ss[im])$`);
+    static insert_src_fn_ssi_or_sst                 = ctRegex!(`^<<\s*(?P<path>[a-zA-Z0-9._-]+/)*(?P<filename>[a-zA-Z0-9._-]+[.]ss[ti])$`);
+    static src_base_parent_dir_name                 = ctRegex!(`[/](?P<dir>(?:[a-zA-Z0-9._-]+))(?:/media/text/[a-z]{2})$`); // formalizes dir structure
+    static src_formalised_file_path_parts           = ctRegex!(`(?P<pth>(?:[/a-zA-Z0-9._-]+?)(?P<dir>[a-zA-Z0-9._-]+))(?:/media/text/[a-z]{2})$`); // formalizes dir structure
+    /+ language codes +/
+    auto language_code_and_filename                                    =
+       ctRegex!("(?:^|[/])(am|bg|bn|br|ca|cs|cy|da|de|el|en|eo|es|et|eu|fi|fr|ga|gl|he|hi|hr|hy|ia|is|it|ja|ko|la|lo|lt|lv|ml|mr|nl|no|nn|oc|pl|pt|pt_BR|ro|ru|sa|se|sk|sl|sq|sr|sv|ta|te|th|tk|tr|uk|ur|vi|zh)/[A-Za-z0-9._-].+?[.](?:sst|ssm)$");
+  }
+}
diff --git a/src/sisudoc/meta/rgx_yaml_tags.d b/src/sisudoc/meta/rgx_yaml_tags.d
new file mode 100644
index 0000000..6266bac
--- /dev/null
+++ b/src/sisudoc/meta/rgx_yaml_tags.d
@@ -0,0 +1,62 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  regex: regular expressions used in sisu document parser
++/
+module sisudoc.meta.rgx_yaml;
+@safe:
+static template spineRgxYamlTags() {
+  static struct RgxYaml {
+    static yaml_tag_is_str                          = ctRegex!(`:str$`);
+    static yaml_tag_is_int                          = ctRegex!(`:int$`);
+    static yaml_tag_is_map                          = ctRegex!(`:map$`);
+    static yaml_tag_is_seq                          = ctRegex!(`:seq$`);
+  }
+}
diff --git a/src/sisudoc/share/defaults.d b/src/sisudoc/share/defaults.d
new file mode 100644
index 0000000..f6303c8
--- /dev/null
+++ b/src/sisudoc/share/defaults.d
@@ -0,0 +1,72 @@
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  shared default settings
++/
+module sisudoc.share.defaults;
+@safe:
+template Msg() {
+  import std.stdio;
+  auto Msg(I)(I doc_matters) {
+    struct Msg_ {
+      void v()(string message) {
+        if (doc_matters.opt.action.vox_gt1) {
+          writeln(message);
+        }
+      }
+      void vv()(string message) {
+        if (doc_matters.opt.action.vox_gt2) {
+          writeln(message);
+        }
+      }
+    }
+    return Msg_();
+  }
+}
diff --git a/src/sisudoc/spine.d b/src/sisudoc/spine.d
new file mode 100755
index 0000000..b79bc54
--- /dev/null
+++ b/src/sisudoc/spine.d
@@ -0,0 +1,1272 @@
+#!/usr/bin/env rdmd
+/+
+- Name: SisuDoc Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2024 Ralph Amissah, All Rights Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+module sisudoc.sisu_document_parser;
+/++
+name        "spine"
+description "A SiSU inspired document parser written in D."
+homepage    "https://sisudoc.org"
++/
+@safe:
+import
+  std.algorithm,
+  std.datetime,
+  std.getopt,
+  std.file,
+  std.path,
+  std.process;
+import
+  sisudoc.conf.compile_time_info,
+  sisudoc.meta,
+  sisudoc.meta.metadoc,
+  sisudoc.meta.metadoc_curate,
+  sisudoc.meta.metadoc_curate_authors,
+  sisudoc.meta.metadoc_curate_topics,
+  sisudoc.meta.metadoc_from_src,
+  sisudoc.meta.conf_make_meta_structs,
+  sisudoc.meta.conf_make_meta_json,
+  sisudoc.meta.defaults,
+  sisudoc.meta.doc_debugs,
+  sisudoc.meta.rgx,
+  sisudoc.meta.rgx_yaml,
+  sisudoc.meta.rgx_files,
+  sisudoc.io_in.paths_source,
+  sisudoc.io_in.read_config_files,
+  sisudoc.io_in.read_source_files,
+  sisudoc.io_out.hub;
+mixin(import("version.txt"));
+mixin(import("configuration.txt"));
+mixin CompileTimeInfo;
+string project_name = "spine";
+string program_name = "spine";
+@system void main(string[] args) {
+  mixin spineRgxIn;
+  mixin spineRgxYamlTags;
+  mixin spineRgxFiles;
+  mixin spineBiblio;
+  mixin outputHub;
+  auto hvst = spineCurateMetadata!();
+  string flag_action;
+  string arg_unrecognized;
+  enum dAM { abstraction, matters }
+  static auto rgx = RgxI();
+  static auto rgx_y = RgxYaml();
+  static auto rgx_files = RgxFiles();
+  scope(success) {
+    writefln(
+      "~ run complete, ok ~ (%s-%s.%s.%s, %s D:%s, %s %s)",
+      program_name,
+      _ver.major, _ver.minor, _ver.patch,
+      __VENDOR__, __VERSION__,
+      bits, os,
+    );
+  }
+  scope(failure) {
+    debug(checkdoc) {
+      stderr.writefln(
+        "run failure",
+      );
+    }
+  }
+  bool[string] opts = [
+    "abstraction"                 : false,
+    "allow-downloads"             : false,
+    "assertions"                  : false,
+    "concordance"                 : false,
+    "dark"                        : false,
+    "debug"                       : false,
+    "debug-curate"                : false,
+    "debug-curate-authors"        : false,
+    "debug-curate-topics"         : false,
+    "debug-epub"                  : false,
+    "debug-harvest"               : false,
+    "debug-html"                  : false,
+    "debug-latex"                 : false,
+    "debug-manifest"              : false,
+    "debug-metadata"              : false,
+    "debug-pod"                   : false,
+    "debug-sqlite"                : false,
+    "debug-stages"                : false,
+    "digest"                      : false,
+    "epub"                        : false,
+    "generated-by"                : false,
+    "curate"                      : false,
+    "curate-authors"              : false,
+    "curate-topics"               : false,
+    "html"                        : false,
+    "html-link-curate"            : false,
+    "html-link-markup"            : false,
+    "html-link-pdf"               : false,
+    "html-link-pdf-a4"            : false,
+    "html-link-pdf-letter"        : false,
+    "html-link-search"            : false,
+    "html-seg"                    : false,
+    "html-scroll"                 : false,
+    "latex"                       : false,
+    "latex-color-links"           : false,
+    "latex-init"                  : false,
+    "latex-header-sty"            : false,
+    "light"                       : false,
+    "manifest"                    : false,
+    "hide-ocn"                    : false,
+    "ocn-off"                     : false,
+    "odf"                         : false,
+    "odt"                         : false,
+    "parallel"                    : false,
+    "parallel-subprocesses"       : false,
+    "pdf"                         : false,
+    "pdf-color-links"             : false,
+    "pdf-init"                    : false,
+    "pod"                         : false,
+    "serial"                      : false,
+    "show-config"                 : false,
+    "show-curate"                 : false,
+    "show-curate-authors"         : false,
+    "show-curate-topics"          : false,
+    "show-epub"                   : false,
+    "show-html"                   : false,
+    "show-latex"                  : false,
+    "show-make"                   : false,
+    "show-manifest"               : false,
+    "show-metadata"               : false,
+    "show-pod"                    : false,
+    "show-sqlite"                 : false,
+    "show-summary"                : false,
+    "source"                      : false,
+    "sqlite-discrete"             : false,
+    "sqlite-db-create"            : false,
+    "sqlite-db-drop"              : false,
+    "sqlite-db-recreate"          : false,
+    "sqlite-delete"               : false,
+    "sqlite-insert"               : false,
+    "sqlite-update"               : false,
+    "text"                        : false,
+    "vox_is0"                     : false,
+    "vox_gt1"                     : false,
+    "vox_gt2"                     : false,
+    "xhtml"                       : false,
+    "section_toc"                 : true,
+    "section_body"                : true,
+    "section_endnotes"            : true,
+    "section_glossary"            : true,
+    "section_biblio"              : true,
+    "section_bookindex"           : true,
+    "section_blurb"               : true,
+    "backmatter"                  : true,
+    "skip-output"                 : false,
+    "theme-dark"                  : false,
+    "theme-light"                 : false,
+    "workon"                      : false,
+  ];
+  string[string] settings = [
+    "output"                      : "",
+    "www-http"                    : "",
+    "www-host"                    : "",
+    "www-host-doc-root"           : "",
+    "www-url-doc-root"            : "",
+    "cgi-http"                    : "",
+    "cgi-host"                    : "",
+    "cgi-bin-root"                : "",
+    "cgi-sqlite-search-filename"  : "",
+    "cgi-url-root"                : "",
+    "cgi-url-action"              : "",
+    "cgi-search-title"            : "",
+    "config"                      : "",
+    "lang"                        : "all",
+    "set-papersize"               : "",
+    "set-textwrap"                : "",
+    "set-digest"                  : "",
+    "sqlite-db-path"              : "",
+    "sqlite-db-filename"          : "",
+  ];
+  auto helpInfo = getopt(args,
+    std.getopt.config.passThrough,
+    "abstraction",                "document abstraction",                                           &opts["abstraction"],
+    "allow-downloads",            "allow downloads (includes cgi.d from github)",                   &opts["allow-downloads"],
+    "assert",                     "set optional assertions on",                                     &opts["assertions"],
+    "cgi-bin-root",               "path to cgi-bin directory",                                      &settings["cgi-bin-root"],
+    "cgi-url-root",               "url to cgi-bin (to find cgi-bin)",                               &settings["cgi-url-root"],
+    "cgi-url-action",             "url to post to cgi-bin search form",                             &settings["cgi-url-action"],
+    "cgi-search-title",           "if generating a cgi search form the title to use for it",        &settings["cgi-search-title"],
+    "cgi-sqlite-search-filename", "=[filename] default is spine-search",                            &settings["cgi-sqlite-search-filename"],
+    "concordance",                "file for document",                                              &opts["concordance"],
+    "curate",                     "extract info on authors & topics from document header metadata", &opts["curate"],
+    "curate-authors",             "extract info on authors from document header metadata",          &opts["curate-authors"],
+    "curate-topics",              "extract info on topics from document header metadata",           &opts["curate-topics"],
+    "dark",                       "alternative dark theme",                                         &opts["dark"],
+    "digest",                     "hash digest for each object",                                    &opts["digest"],
+    "epub",                       "process epub output",                                            &opts["epub"],
+    "generated-by",               "generated by headers (software version & time)",                 &opts["generated-by"],
+    "hide-ocn",                   "object cite numbers",                                            &opts["hide-ocn"],
+    "html",                       "process html output",                                            &opts["html"],
+    "html-link-curate",           "place links back to curate in segmented html",                   &opts["html-link-curate"],
+    "html-link-markup",           "provide html link to markup source, shared optionally",          &opts["html-link-markup"],
+    "html-link-pdf",              "provide html link to pdf a4 & letter output",                    &opts["html-link-pdf"],
+    "html-link-pdf-a4",           "provide html link to pdf a4 output",                             &opts["html-link-pdf-a4"],
+    "html-link-pdf-letter",       "provide html link to pdf letter size output",                    &opts["html-link-pdf-letter"],
+    "html-link-search",           "html embedded search submission",                                &opts["html-link-search"],
+    "html-seg",                   "process html output",                                            &opts["html-seg"],
+    "html-scroll",                "process html output",                                            &opts["html-scroll"],
+    "lang",                       "=[lang code e.g. =en or =en,es]",                                &settings["lang"],
+    "latex",                      "latex output (for pdfs)",                                        &opts["latex"],
+    "latex-color-links",          "mono or color links for pdfs",                                   &opts["latex-color-links"],
+    "latex-init",                 "initialise latex shared files (see latex-header-sty)",           &opts["latex-init"],
+    "latex-header-sty",           "latex document header sty files",                                &opts["latex-header-sty"],
+    "light",                      "default light theme",                                            &opts["light"],
+    "manifest",                   "process manifest output",                                        &opts["manifest"],
+    "ocn-off",                    "object cite numbers",                                            &opts["ocn-off"],
+    "odf",                        "open document format text (--odt)",                              &opts["odf"],
+    "odt",                        "open document format text",                                      &opts["odt"],
+    "output",                     "=/path/to/output/dir specify where to place output",             &settings["output"],
+    "parallel",                   "parallelisation",                                                &opts["parallel"],
+    "parallel-subprocesses",      "nested parallelisation",                                         &opts["parallel-subprocesses"],
+    "pdf",                        "latex output for pdfs",                                          &opts["pdf"],
+    "pdf-color-links",            "mono or color links for pdfs",                                   &opts["pdf-color-links"],
+    "pdf-init",                   "initialise latex shared files (see latex-header-sty)",           &opts["pdf-init"],
+    "pod",                        "spine (doc reform) pod source content bundled",                  &opts["pod"],
+    "quiet|q",                    "output to terminal",                                             &opts["vox_is0"],
+    "section-backmatter",         "document backmatter (default)" ,                                 &opts["backmatter"],
+    "section-biblio",             "document biblio (default)",                                      &opts["section_biblio"],
+    "section-blurb",              "document blurb (default)",                                       &opts["section_blurb"],
+    "section-body",               "document body (default)",                                        &opts["section_body"],
+    "section-bookindex",          "document bookindex (default)",                                   &opts["section_bookindex"],
+    "section-endnotes",           "document endnotes (default)",                                    &opts["section_endnotes"],
+    "section-glossary",           "document glossary (default)",                                    &opts["section_glossary"],
+    "section-toc",                "table of contents (default)",                                    &opts["section_toc"],
+    "serial",                     "serial processing",                                              &opts["serial"],
+    "skip-output",                "skip output",                                                    &opts["skip-output"],
+    "show-config",                "show config",                                                    &opts["show-config"],
+    "show-curate",                "show curate",                                                    &opts["show-curate"],
+    "show-curate-authors",        "show curate authors",                                            &opts["show-curate-authors"],
+    "show-curate-topics",         "show curate topics",                                             &opts["show-curate-topics"],
+    "show-epub",                  "show epub",                                                      &opts["show-epub"],
+    "show-html",                  "show html",                                                      &opts["show-html"],
+    "show-latex",                 "show latex",                                                     &opts["show-latex"],
+    "show-make",                  "show make",                                                      &opts["show-make"],
+    "show-manifest",              "show manifest",                                                  &opts["show-manifest"],
+    "show-metadata",              "show metadata",                                                  &opts["show-metadata"],
+    "show-pod",                   "show pod",                                                       &opts["show-pod"],
+    "show-sqlite",                "show sqlite",                                                    &opts["show-sqlite"],
+    "show-summary",               "show summary",                                                   &opts["show-summary"],
+    "source",                     "document markup source",                                         &opts["source"],
+    "set-digest",                 "default hash digest type (e.g. sha256)",                         &settings["set-digest"],
+    "set-papersize",              "default papersize (latex pdf eg. a4 or a5 or b4 or letter)",     &settings["set-papersize"],
+    "set-textwrap",               "default textwrap (e.g. 80 (characters)",                         &settings["set-textwrap"],
+    "sqlite-discrete",            "process discrete sqlite output",                                 &opts["sqlite-discrete"],
+    "sqlite-db-create",           "create db, create tables",                                       &opts["sqlite-db-create"],
+    "sqlite-db-drop",             "drop tables & db",                                               &opts["sqlite-db-drop"],
+    "sqlite-db-filename",         "sqlite db to create, populate & make available for search",      &settings["sqlite-db-filename"],
+    "sqlite-db-path",             "sqlite db path",                                                 &settings["sqlite-db-path"],
+    "sqlite-db-recreate",         "create db, create tables",                                       &opts["sqlite-db-recreate"],
+    "sqlite-delete",              "sqlite output",                                                  &opts["sqlite-delete"],
+    "sqlite-insert",              "sqlite output",                                                  &opts["sqlite-insert"],
+    "sqlite-update",              "sqlite output",                                                  &opts["sqlite-update"],
+    "www-http",                   "http or https",                                                  &settings["www-http"],
+    "www-host",                   "web server host (domain) name",                                  &settings["www-host"],
+    "www-host-doc-root",          "web host host (domain) name with path to doc root",              &settings["www-host-doc-root"],
+    "www-url-doc-root",           "e.g. http://localhost",                                          &settings["www-url-doc-root"],
+    "text",                       "text output",                                                    &opts["text"],
+    "theme-dark",                 "alternative dark theme",                                         &opts["theme-dark"],
+    "theme-light",                "default light theme",                                            &opts["theme-light"],
+    "txt",                        "text output",                                                    &opts["text"],
+    "verbose|v",                  "output to terminal",                                             &opts["vox_gt1"],
+    "very-verbose",               "output to terminal",                                             &opts["vox_gt2"],
+    "workon",                     "(reserved for some matters under development & testing)",        &opts["workon"],
+    "xhtml",                      "xhtml output",                                                   &opts["xhtml"],
+    "config",                     "=/path/to/config/file/including/filename",                       &settings["config"],
+    "debug",                      "debug",                                                          &opts["debug"],
+    "debug-curate",               "debug curate",                                                   &opts["debug-curate"],
+    "debug-curate-authors",       "debug curate authors",                                           &opts["debug-curate-authors"],
+    "debug-curate-topics",        "debug curate topics",                                            &opts["debug-curate-topics"],
+    "debug-epub",                 "debug epub",                                                     &opts["debug-epub"],
+    "debug-harvest",              "debug harvest",                                                  &opts["debug-harvest"],
+    "debug-html",                 "debug html",                                                     &opts["debug-html"],
+    "debug-latex",                "debug latex",                                                    &opts["debug-latex"],
+    "debug-manifest",             "debug manifest",                                                 &opts["debug-manifest"],
+    "debug-metadata",             "debug metadata",                                                 &opts["debug-metadata"],
+    "debug-pod",                  "debug pod",                                                      &opts["debug-pod"],
+    "debug-sqlite",               "debug sqlite",                                                   &opts["debug-sqlite"],
+    "debug-stages",               "debug stages",                                                   &opts["debug-stages"],
+    // "sqlite-db-filename",         "=[filename].sql.db",                                             &settings["sqlite-db-filename"],
+  );
+  if (helpInfo.helpWanted) {
+    defaultGetoptPrinter("Some information about the program.", helpInfo.options);
+  }
+  enum outTask { source_or_pod, sqlite, sqlite_multi, latex, odt, epub, html_scroll, html_seg, html_stuff }
+  struct OptActions {
+    @trusted bool allow_downloads() {
+      return opts["allow-downloads"];
+    }
+    @trusted bool assertions() {
+      return opts["assertions"];
+    }
+    @trusted bool concordance() {
+      return opts["concordance"];
+    }
+    @trusted string config_path_set() {
+      return settings["config"];
+    }
+    @trusted bool css_theme_default() {
+      bool _is_light;
+      if (opts["light"] || opts["theme-light"]) {
+        _is_light = true;
+      } else if (opts["dark"] || opts["theme-dark"]) {
+        _is_light = false;
+      } else {
+        _is_light = true;
+      }
+      return _is_light;
+    }
+    @trusted bool debug_do() {
+      bool _dbg;
+      if (opts["debug"]) {
+        _dbg = true;
+      } else { _dbg = false; }
+      return _dbg;
+    }
+    @trusted bool debug_do_curate() {
+      return (opts["debug"] || opts["debug-curate"]) ? true : false;
+    }
+    @trusted bool debug_do_curate_authors() {
+      return (opts["debug"] || opts["debug-curate"] || opts["debug-curate-authors"]) ? true : false;
+    }
+    @trusted bool debug_do_curate_topics() {
+      return (opts["debug"] || opts["debug-curate"] || opts["debug-curate-topics"]) ? true : false;
+    }
+    @trusted bool debug_do_epub() {
+      return (opts["debug"] || opts["debug-epub"]) ? true : false;
+    }
+    @trusted bool debug_do_harvest() {
+      return (opts["debug"] || opts["debug-harvest"]) ? true : false;
+    }
+    @trusted bool debug_do_html() {
+      return (opts["debug"] || opts["debug-html"]) ? true : false;
+    }
+    @trusted bool debug_do_latex() {
+      return (opts["debug"] || opts["debug-latex"]) ? true : false;
+    }
+    @trusted bool debug_do_manifest() {
+      return (opts["debug"] || opts["debug-manifest"]) ? true : false;
+    }
+    @trusted bool debug_do_metadata() {
+      return (opts["debug"] || opts["debug-metadata"]) ? true : false;
+    }
+    @trusted bool debug_do_pod() {
+      return (opts["debug"] || opts["debug-pod"]) ? true : false;
+    }
+    @trusted bool debug_do_sqlite() {
+      return (opts["debug"] || opts["debug-sqlite"]) ? true : false;
+    }
+    @trusted bool debug_do_stages() {
+      return (opts["debug"] || opts["debug-stages"]) ? true : false;
+    }
+    @trusted bool debug_do_xmls() {
+      return (opts["debug"] || opts["debug-html"] || opts["debug-epub"]) ? true : false;
+    }
+    @trusted bool curate() {
+      return (opts["curate"] || opts["curate-authors"] || opts["curate-topics"]) ? true : false;
+    }
+    @trusted bool curate_authors() {
+      return (opts["curate"] || opts["curate-authors"]) ? true : false;
+    }
+    @trusted bool curate_topics() {
+      return (opts["curate"] || opts["curate-topics"]) ? true : false;
+    }
+    @trusted bool digest() {
+      return opts["digest"];
+    }
+    @trusted bool epub() {
+      return opts["epub"];
+    }
+    @trusted bool generated_by() {
+      return opts["generated-by"];
+    }
+    @trusted bool html_link_curate() {
+      return (opts["html-link-curate"]) ? true : false;
+    }
+    @trusted bool html_link_markup_source() {
+      return (opts["html-link-markup"]) ? true : false;
+    }
+    @trusted bool html_link_pdf() {
+      return (opts["html-link-pdf"]) ? true : false;
+    }
+    @trusted bool html_link_pdf_a4() {
+      return (opts["html-link-pdf-a4"]) ? true : false;
+    }
+    @trusted bool html_link_pdf_letter() {
+      return (opts["html-link-pdf-letter"]) ? true : false;
+    }
+    @trusted bool html_link_search() {
+      return (opts["html-link-search"]) ? true : false;
+    }
+    @trusted bool html() {
+      return (opts["html"] || opts["html-seg"] || opts["html-scroll"]) ? true : false;
+    }
+    @trusted bool html_seg() {
+      return (opts["html"] || opts["html-seg"]) ? true : false;
+    }
+    @trusted bool html_scroll() {
+      return (opts["html"] || opts["html-scroll"]) ? true : false;
+    }
+    @trusted bool html_stuff() {
+      return (opts["html"] || opts["html-scroll"] || opts["html-seg"]) ? true : false;
+    }
+    @trusted bool latex() {
+      return (opts["latex"] || opts["pdf"]) ? true : false;
+    }
+    @trusted bool latex_color_links() {
+      return (opts["latex-color-links"] || opts["pdf-color-links"]) ? true : false;
+    }
+    @trusted bool latex_document_header_sty() {
+      return (opts["latex-init"] || opts["latex-header-sty"] || opts["pdf-init"]) ? true : false;
+    }
+    @trusted bool manifest() {
+      return opts["manifest"];
+    }
+    @trusted bool odt() {
+      return (opts["odf"] || opts["odt"]) ? true : false;
+    }
+    @trusted bool ocn_hidden() {
+      return opts["hide-ocn"];
+    }
+    @trusted bool ocn_off() {
+      return opts["ocn-off"];
+    }
+    @trusted bool pod() {
+      return opts["pod"];
+    }
+    @trusted bool show_config() {
+      return opts["show-config"];
+    }
+    @trusted bool show_curate() {
+      return opts["show-curate"];
+    }
+    @trusted bool show_curate_authors() {
+      return (opts["show-curate"] || opts["show-curate-authors"] || opts["vox_gt1"] || opts["vox_gt2"]) ? true : false;
+    }
+    @trusted bool show_curate_topics() {
+      return (opts["show-curate"] || opts["show-curate-topics"] || opts["vox_gt2"]) ? true : false;
+    }
+    @trusted bool show_epub() {
+      return opts["show-epub"];
+    }
+    @trusted bool show_html() {
+      return opts["show-html"];
+    }
+    @trusted bool show_latex() {
+      return opts["show-latex"];
+    }
+    @trusted bool show_make() {
+      return opts["show-make"];
+    }
+    @trusted bool show_manifest() {
+      return opts["show-manifest"];
+    }
+    @trusted bool show_metadata() {
+      return opts["show-metadata"];
+    }
+    @trusted bool show_pod() {
+      return opts["show-pod"];
+    }
+    @trusted bool show_sqlite() {
+      return (opts["show-sqlite"] || opts["vox_gt2"]) ? true : false;
+    }
+    @trusted bool show_summary() {
+      return (opts["show-summary"] || opts["vox_gt1"] || opts["vox_gt2"]) ? true : false;
+    }
+    @trusted bool source() {
+      return opts["source"];
+    }
+    @trusted bool source_or_pod() {
+      return (opts["pod"] || opts["source"]) ? true : false;
+    }
+    @trusted bool sqlite_discrete() {
+      return opts["sqlite-discrete"];
+    }
+    @trusted bool sqlite_db_drop() {
+      return (opts["sqlite-db-recreate"] || opts["sqlite-db-drop"]) ? true : false;
+    }
+    @trusted bool sqlite_db_create() {
+      return (opts["sqlite-db-recreate"] || opts["sqlite-db-create"]) ? true : false;
+    }
+    @trusted bool sqlite_delete() {
+      return opts["sqlite-delete"];
+    }
+    @trusted bool sqlite_update() {
+      return (opts["sqlite-update"] || opts["sqlite-insert"]) ? true : false;
+    }
+    @trusted bool sqlite_shared_db_action() {
+      return (
+        opts["sqlite-db-recreate"]
+        || opts["sqlite-db-create"]
+        || opts["sqlite-delete"]
+        || opts["sqlite-insert"]
+        || opts["sqlite-update"]
+      ) ? true : false;
+    }
+    @trusted bool vox_is0() { // --quiet -q
+      return opts["vox_is0"];
+    }
+    @trusted bool vox_gt0() { // normal, minimal, without flag
+      return (!(opts["vox_is0"]) || opts["vox_gt1"] || opts["vox_gt2"]) ? true : false;
+    }
+    @trusted bool vox_gt1() { // -- verbose -v
+      return (opts["vox_gt1"] || opts["vox_gt2"]) ? true : false;
+    }
+    @trusted bool vox_gt2() { // --very-verbose
+      return opts["vox_gt2"];
+    }
+    @trusted bool text() {
+      return opts["text"];
+    }
+    @trusted bool xhtml() {
+      return opts["xhtml"];
+    }
+    @trusted bool section_toc() {
+      return opts["section_toc"];
+    }
+    @trusted bool section_body() {
+      return opts["section_body"];
+    }
+    @trusted bool section_endnotes() {
+      return opts["section_endnotes"];
+    }
+    @trusted bool section_glossary() {
+      return opts["section_glossary"];
+    }
+    @trusted bool section_biblio() {
+      return opts["section_biblio"];
+    }
+    @trusted bool section_bookindex() {
+      return opts["section_bookindex"];
+    }
+    @trusted bool section_blurb() {
+      return opts["section_blurb"];
+    }
+    @trusted bool backmatter() {
+      return opts["backmatter"];
+    }
+    @trusted bool skip_output() {
+      return opts["skip-output"];
+    }
+    @trusted bool workon() {
+      return opts["workon"];
+    }
+    @trusted string[] languages_set() {
+      return settings["lang"].split(",");
+    }
+    @trusted string output_dir_set() {
+      return settings["output"];
+    }
+    @trusted string sqliteDB_filename() {
+      return settings["sqlite-db-filename"];
+    }
+    @trusted string sqliteDB_path() {
+      return settings["sqlite-db-path"];
+    }
+    @trusted string cgi_bin_root() {
+      return settings["cgi-bin-root"];
+    }
+    @trusted string cgi_search_title() {
+      return settings["cgi-search-title"];
+    }
+    @trusted string cgi_sqlite_search_filename() {
+      return settings["cgi-sqlite-search-filename"];
+    }
+    @trusted string cgi_sqlite_search_filename_d() {
+      return (settings["cgi-sqlite-search-filename"].length > 0)
+      ? (settings["cgi-sqlite-search-filename"].translate(['-' : "_"]) ~ ".d")
+      : "";
+    }
+    @trusted string cgi_url_root() {
+      return settings["cgi-url-root"];
+    }
+    @trusted string cgi_url_action() {
+      return settings["cgi-url-action"];
+    }
+    @trusted string hash_digest_type() {
+      return settings["set-digest"];
+    }
+    @trusted string text_wrap() {
+      return settings["set-textwrap"];
+    }
+    @trusted string latex_papersize() {
+      return settings["set-papersize"];
+    }
+    @trusted string webserver_host_name() {
+      return settings["www-host"];
+    }
+    @trusted string webserver_host_doc_root() {
+      return settings["www-host-doc-root"];
+    }
+    @trusted string webserver_url_doc_root() {
+      return settings["www-url-doc-root"];
+    }
+    @trusted string webserver_http() {
+      return settings["www-http"];
+    }
+    @trusted bool parallelise() {
+      bool _is;
+      if (opts["serial"] == true) {
+        _is = false;
+      } else if (sqlite_shared_db_action) {
+        _is = false;
+      } else if (opts["parallel"] == true) {
+        _is = true;
+        if (sqlite_shared_db_action) { _is = false; }
+      } else if (
+        opts["abstraction"]
+        || concordance
+        || curate
+        || html
+        || epub
+        || odt
+        || latex
+        || manifest
+        || source_or_pod
+        || sqlite_discrete
+      ) {
+        _is = true;
+      } else { _is = false; }
+      return _is;
+    }
+    @trusted bool parallelise_subprocesses() {
+      return opts["parallel-subprocesses"];
+    }
+    auto output_task_scheduler() {
+      int[] schedule;
+      if (source_or_pod) {
+        schedule ~= outTask.source_or_pod;
+      }
+      if (sqlite_discrete) {
+        schedule ~= outTask.sqlite;
+      }
+      if (epub) {
+        schedule ~= outTask.epub;
+      }
+      if (html_scroll) {
+        schedule ~= outTask.html_scroll;
+      }
+      if (html_seg) {
+        schedule ~= outTask.html_seg;
+      }
+      if (html_stuff) {
+        schedule ~= outTask.html_stuff;
+      }
+      if (odt) {
+        schedule ~= outTask.odt;
+      }
+      if (latex) {
+        schedule ~= outTask.latex;
+      }
+      return schedule.sort().uniq;
+    }
+    @trusted bool abstraction() {
+      return (
+        opts["abstraction"]
+        || concordance
+        || source_or_pod
+        || curate
+        || html
+        || epub
+        || odt
+        || latex
+        || manifest
+        || sqlite_discrete
+        || sqlite_delete
+        || sqlite_update
+      ) ? true : false;
+    }
+    @trusted bool require_processing_files() {
+      return (
+        opts["abstraction"]
+        || epub
+        || curate
+        || html
+        || html_seg
+        || html_scroll
+        || latex
+        || odt
+        || manifest
+        || show_make
+        || show_metadata
+        || show_summary
+        || source_or_pod
+        || sqlite_discrete
+        || sqlite_update
+        || text
+        || xhtml
+      ) ? true : false;
+    }
+    @trusted bool meta_processing_general() {
+      return (
+        opts["abstraction"]
+        || curate
+        || html
+        || epub
+        || odt
+        || latex
+        || sqlite_discrete
+        || sqlite_update
+      ) ? true :false;
+    }
+    @trusted bool meta_processing_xml_dom() {
+      return (
+        opts["abstraction"]
+        || html
+        || epub
+        || odt
+        || sqlite_discrete
+        || sqlite_update
+      ) ? true : false;
+    }
+  }
+  OptActions _opt_action = OptActions();
+  auto program_info() {
+    struct ProgramInfo {
+      string project() {
+        return project_name;
+      }
+      string name() {
+        return program_name;
+      }
+      string ver() {
+        return format("%s.%s.%s",
+          _ver.major, _ver.minor, _ver.patch,
+        );
+      }
+      string compiler() {
+        return format ("%s D:%s, %s %s",
+          __VENDOR__, __VERSION__,
+          bits, os,
+        );
+      }
+      @trusted string name_and_version() {
+        return format("%s-%s", name, ver);
+      }
+      @trusted string name_version_and_compiler() {
+        return format("%s-%s (%s)", name, ver, compiler);
+      }
+      auto time_output_generated() {
+        auto _st = Clock.currTime(UTC());
+        auto _t  = TimeOfDay(_st.hour, _st.minute, _st.second);
+        auto _time = _st.year.to!string
+          ~ "-" ~ _st.month.to!int.to!string // prefer as month number
+          ~ "-" ~ _st.day.to!string
+          ~ " [" ~ _st.isoWeek.to!string ~ "/" ~ _st.dayOfWeek.to!int.to!string ~ "]"
+          ~ " - " ~ _t.toISOExtString
+          // ~ " " ~ _st.hour.to!string ~ ":" ~ _st.minute.to!string ~ ":" ~ _st.second.to!string
+          ~ " UTC";
+        return _time;
+        // return _st.toISOExtString();
+      }
+    }
+    return ProgramInfo();
+  }
+  auto _env = [
+    "pwd" :     environment["PWD"],
+    "home" :    environment["HOME"],
+  ];
+  auto _manifested = PathMatters!()(_opt_action, _env, "");
+  auto _manifests = [ _manifested ];
+  auto _conf_file_details = configFilePaths!()(_manifested, _env, _opt_action.config_path_set);
+  ConfComposite _siteConfig;
+  if (
+    _opt_action.require_processing_files
+    && _opt_action.config_path_set.empty
+  ) {
+    foreach(arg; args[1..$]) {
+      if (!(arg.match(rgx.flag_action))) { /+ cli markup source path +/ // get first input markup source file names for processing
+        _manifested = PathMatters!()(_opt_action, _env, arg);
+        { /+ local site config +/
+          _conf_file_details = configFilePaths!()(_manifested, _env, _opt_action.config_path_set);
+          auto _config_local_site_struct = readConfigSite!()(_conf_file_details, _opt_action, _cfg);
+          import sisudoc.meta.conf_make_meta_yaml;
+          _siteConfig = _config_local_site_struct.configParseYAMLreturnSpineStruct!()(_siteConfig, _manifested, _opt_action, _cfg); // - get local site config
+          break;
+        }
+      }
+    }
+  } else { /+ local site config +/
+    auto _config_local_site_struct = readConfigSite!()(_conf_file_details, _opt_action, _cfg);
+    import sisudoc.meta.conf_make_meta_yaml;
+    _siteConfig = _config_local_site_struct.configParseYAMLreturnSpineStruct!()(_siteConfig, _manifested, _opt_action, _cfg); // - get local site config
+  }
+  if (_opt_action.show_config) {
+    import sisudoc.meta.metadoc_show_config;
+    spineShowSiteConfig!()(_opt_action, _siteConfig);
+  }
+  if (!(_opt_action.skip_output)) {
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("step0 commence → (without processing files)");
+    }
+    outputHubOp!()(_env, _opt_action, _siteConfig);
+    if ((_opt_action.debug_do)
+      || (_opt_action.debug_do_stages)
+    ) {
+      writeln("- step0 complete");
+    }
+  }
+  ConfComposite _make_and_meta_struct = _siteConfig;
+  destroy(_siteConfig);
+  foreach(arg; args[1..$]) {
+    if (arg.match(rgx.flag_action)) { /+ cli instruction, flag do +/
+      flag_action ~= " " ~ arg;   // flags not taken by getopt
+    } else if (_opt_action.require_processing_files) { /+ cli, assumed to be path to source files +/
+      auto _manifest_start = PodManifest!()(_opt_action, arg);
+      if ( /+ pod files +/
+        !(arg.match(rgx_files.src_pth_sst_or_ssm))
+        && _manifest_start.pod_manifest_file_with_path
+        && _opt_action.abstraction
+      ) {
+        string pod_manifest_root_content_paths_to_markup_location_raw_;
+        string markup_contents_location_;
+        string sisudoc_txt_ = _manifest_start.pod_manifest_file_with_path;
+        enforce(
+          exists(sisudoc_txt_)!=0,
+          "file not found: «" ~
+          sisudoc_txt_ ~ "»"
+        );
+        if (exists(sisudoc_txt_)) {
+          try {
+            if (exists(sisudoc_txt_)) {
+              import dyaml;
+              try {
+                Node pod_manifest_yaml;
+                try {
+                  pod_manifest_yaml = Loader.fromFile(sisudoc_txt_).load();
+                } catch (ErrnoException ex) {
+                } catch (FileException ex) {
+                  writeln("ERROR failed to read config file");
+                } catch (Throwable) {
+                  writeln("ERROR failed to read config file content, not parsed as yaml");
+                }
+                if ("doc" in pod_manifest_yaml) {
+                  if (pod_manifest_yaml["doc"].type.mapping
+                    && pod_manifest_yaml["doc"].tag.match(rgx_y.yaml_tag_is_map)
+                  ) {
+                    if ("path" in pod_manifest_yaml["doc"]) {
+                      if (pod_manifest_yaml["doc"]["path"].tag.match(rgx_y.yaml_tag_is_seq)) {
+                        foreach (string _path; pod_manifest_yaml["doc"]["path"]) {
+                          markup_contents_location_ ~= _path ~ "\n";
+                          pod_manifest_root_content_paths_to_markup_location_raw_ ~=
+                            _path ~ "\n";
+                        }
+                      } else if (
+                        pod_manifest_yaml["doc"]["path"].type.string
+                        && pod_manifest_yaml["doc"]["path"].tag.match(rgx_y.yaml_tag_is_str)
+                      ) {
+                        markup_contents_location_ = pod_manifest_yaml["doc"]["path"].get!string;
+                        pod_manifest_root_content_paths_to_markup_location_raw_ =
+                          pod_manifest_yaml["doc"]["path"].get!string;
+                      }
+                    }
+                    if ("filename" in pod_manifest_yaml["doc"]) {
+                      if (pod_manifest_yaml["doc"]["filename"].tag.match(rgx_y.yaml_tag_is_seq)) {
+                        foreach (string _filename; pod_manifest_yaml["doc"]["filename"]) {
+                          if ("language" in pod_manifest_yaml["doc"]) {
+                            if (pod_manifest_yaml["doc"]["language"].tag.match(rgx_y.yaml_tag_is_seq)) {
+                              foreach (string _lang; pod_manifest_yaml["doc"]["language"]) {
+                                markup_contents_location_ ~=
+                                  "media/text/"
+                                  ~ _lang ~ "/"
+                                  ~ _filename ~ "\n";
+                              }
+                            } else if (pod_manifest_yaml["doc"]["language"].tag.match(rgx_y.yaml_tag_is_str)
+                            ) {
+                              markup_contents_location_ =
+                                "media/text/"
+                                ~ pod_manifest_yaml["doc"]["language"].get!string
+                                ~ "/" ~ _filename ~ "\n";
+                            } else {
+                              string _lang_default = "en";
+                              markup_contents_location_ ~=
+                                "media/text/"
+                                ~ _lang_default ~ "/"
+                                ~ pod_manifest_yaml["doc"]["filename"].get!string ~ "\n";
+                            }
+                          } else {
+                            string _lang_default = "en";
+                            markup_contents_location_ ~=
+                              "media/text/"
+                              ~ _lang_default ~ "/"
+                              ~ pod_manifest_yaml["doc"]["filename"].get!string ~ "\n";
+                          }
+                        }
+                      } else if (
+                        pod_manifest_yaml["doc"]["filename"].type.string
+                        && pod_manifest_yaml["doc"]["filename"].tag.match(rgx_y.yaml_tag_is_str)
+                      ) {
+                        if ("language" in pod_manifest_yaml["doc"]) {
+                          if (pod_manifest_yaml["doc"]["language"].tag.match(rgx_y.yaml_tag_is_seq)) {
+                            foreach (string _lang; pod_manifest_yaml["doc"]["language"]) {
+                              markup_contents_location_ ~=
+                                "media/text/"
+                                ~ _lang ~ "/"
+                                ~ pod_manifest_yaml["doc"]["filename"].get!string ~ "\n";
+                            }
+                          } else if (pod_manifest_yaml["doc"]["language"].tag.match(rgx_y.yaml_tag_is_str)) {
+                            markup_contents_location_ =
+                              "media/text/"
+                              ~ pod_manifest_yaml["doc"]["language"].get!string
+                              ~ "/" ~ pod_manifest_yaml["doc"]["filename"].get!string ~ "\n";
+                          } else {
+                            string _lang_default = "en";
+                            markup_contents_location_ ~=
+                              "media/text/"
+                              ~ _lang_default ~ "/"
+                              ~ pod_manifest_yaml["doc"]["filename"].get!string ~ "\n";
+                          }
+                        } else {
+                          string _lang_default = "en";
+                          markup_contents_location_ ~=
+                            "media/text/"
+                            ~ _lang_default ~ "/"
+                            ~ pod_manifest_yaml["doc"]["filename"].get!string ~ "\n";
+                        }
+                      }
+                    }
+                  }
+                }
+              } catch (ErrnoException ex) {
+              }
+            }
+          } catch (ErrnoException ex) {
+          } catch (FileException ex) {
+            // Handle errors
+          }
+        } else {
+          writeln("manifest not found: ", sisudoc_txt_);
+        }
+        auto markup_contents_locations_arr
+          = (cast(char[]) markup_contents_location_).split;
+        auto tmp_dir_ = (sisudoc_txt_).dirName.array;
+        foreach (markup_contents_location; markup_contents_locations_arr) {
+          assert(markup_contents_location.match(rgx_files.src_pth_sst_or_ssm),
+            "not a recognised file: «" ~
+            markup_contents_location ~ "»"
+          );
+          auto markup_contents_location_pth_ = (markup_contents_location).to!string;
+          Regex!(char) lang_rgx_ = regex(r"/(" ~ _opt_action.languages_set.join("|") ~ ")/");
+          if (_opt_action.languages_set[0] == "all"
+            || (markup_contents_location_pth_).match(lang_rgx_)
+          ) {
+            auto _fns = (((tmp_dir_).chainPath(markup_contents_location_pth_)).array).to!string;
+            _manifested = PathMatters!()(_opt_action, _env, arg, _fns, markup_contents_locations_arr);
+            _manifests ~= _manifested;
+          }
+        }
+      } else if (arg.match(rgx_files.src_pth_sst_or_ssm)) { /+ markup txt files +/
+        if (exists(arg)==0) {
+          writeln("ERROR >> Processing Skipped! File not found: ", arg);
+        } else {
+          _manifested = PathMatters!()(_opt_action, _env, arg, arg);
+          _manifests ~= _manifested;
+        }
+      } else if (arg.match(rgx_files.src_pth_zip)) {
+        // fns_src ~= arg;          // gather input markup source file names for processing
+      } else {                      // anything remaining, unused
+        arg_unrecognized ~= " " ~ arg;
+      }
+    }
+  }
+  if (_manifests.length > 1                            // _manifests[0] initialized dummy element
+  && _opt_action.abstraction) {
+    /+ ↓ output hub +/
+    if (!(_opt_action.skip_output)) {
+      outputHubInitialize!()(_opt_action, program_info);
+    }
+    if (_opt_action.parallelise) {                     // see else
+      import std.parallelism;
+      foreach(manifest; parallel(_manifests[1..$])) {
+        if (!empty(manifest.src.filename)) {
+          scope(success) {
+            if (_opt_action.vox_gt0) {
+              writefln(
+                "%s",
+                "-- ~ document complete, ok ~ ------------------------------------",
+              );
+            }
+          }
+          scope(failure) {
+            debug(checkdoc) {
+              stderr.writefln(
+                "~ document run failure ~ (%s  v%s)\n\t%s\n%s",
+                __VENDOR__, __VERSION__,
+                manifest.src.filename,
+                "------------------------------------------------------------------",
+              );
+            }
+          }
+          enforce(
+            manifest.src.filename.match(rgx_files.src_pth_types),
+            "not a sisu markup filename: «" ~
+            manifest.src.filename ~ "»"
+          );
+          if ((_opt_action.debug_do)
+            || (_opt_action.debug_do_stages)
+          ) {
+            writeln("--->\nstepX commence → (document abstraction) [", manifest.src.filename, "]");
+          }
+          auto t = spineAbstraction!()(_env, program_info, _opt_action, _cfg, manifest, _make_and_meta_struct);
+          static assert(t.length==2);
+          auto doc_abstraction = t[dAM.abstraction];
+          auto doc_matters = t[dAM.matters];
+          if ((doc_matters.opt.action.debug_do)
+            || (_opt_action.debug_do_stages)
+          ) {
+            writeln("- stepX complete for [", manifest.src.filename, "]");
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_summary) {
+            import sisudoc.meta.metadoc_show_summary;
+            spineMetaDocSummary!()(doc_abstraction, doc_matters);
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_metadata) {
+            import sisudoc.meta.metadoc_show_metadata;
+            spineShowMetaData!()(doc_matters);
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_make) {
+            import sisudoc.meta.metadoc_show_make;
+            spineShowMake!()(doc_matters);
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_config) {
+            import sisudoc.meta.metadoc_show_config;
+            spineShowConfig!()(doc_matters);
+          }
+          if (doc_matters.opt.action.curate) {
+            auto _hvst = spineMetaDocCurate!()(doc_matters, hvst);
+            if (
+              _hvst.title.length > 0
+              && _hvst.author_surname_fn.length > 0
+            ) {
+              hvst.curates ~= _hvst;
+            } else {
+              if ((doc_matters.opt.action.debug_do)
+                || (_opt_action.debug_do_curate)
+                || (doc_matters.opt.action.vox_gt2)
+              ) {
+                writeln("WARNING curate: document header yaml does not contain information related to: title or author: ", _hvst.path_html_segtoc);
+              }
+            }
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.debug_do) {
+            spineDebugs!()(doc_abstraction, doc_matters);
+          }
+          /+ ↓ output hub +/
+          if (!(doc_matters.opt.action.skip_output)) {
+            if ((_opt_action.debug_do)
+              || (_opt_action.debug_do_stages)
+            ) {
+              writeln("step5 commence → (process outputs) [", manifest.src.filename, "]");
+            }
+            doc_abstraction.outputHub!()(doc_matters);
+            if ((_opt_action.debug_do)
+              || (_opt_action.debug_do_stages)
+            ) {
+              writeln("- step5 complete for [", manifest.src.filename, "]");
+            }
+          }
+          scope(exit) {
+            if (_opt_action.vox_gt0) {
+              writefln(
+                "processed file: %s [%s]",
+                manifest.src.filename,
+                manifest.src.language
+              );
+            }
+            destroy(manifest);
+          }
+        } else {
+          /+ no recognized filename provided +/
+          writeln("no recognized filename");
+          break; // terminate, stop
+        }
+      }
+    } else {                                           // note cannot parallelise sqlite shared db
+      foreach(manifest; _manifests[1..$]) {
+        if (_opt_action.vox_gt2) {
+          writeln("parallelisation off: actions include sqlite shared db");
+        }
+        if (!empty(manifest.src.filename)) {
+          scope(success) {
+            if (_opt_action.vox_gt0) {
+              writefln(
+                "%s",
+                "-- ~ document complete, ok ~ ------------------------------------",
+              );
+            }
+          }
+          scope(failure) {
+            debug(checkdoc) {
+              stderr.writefln(
+                "~ document run failure ~ (%s  v%s)\n\t%s\n%s",
+                __VENDOR__, __VERSION__,
+                manifest.src.filename,
+                "------------------------------------------------------------------",
+              );
+            }
+          }
+          enforce(
+            manifest.src.filename.match(rgx_files.src_pth_types),
+            "not a sisu markup filename: «" ~
+            manifest.src.filename ~ "»"
+          );
+          if ((_opt_action.debug_do)
+            || (_opt_action.debug_do_stages)
+          ) {
+            writeln("--->\nstepX commence → (document abstraction) [", manifest.src.filename, "]");
+          }
+          auto t = spineAbstraction!()(_env, program_info, _opt_action, _cfg, manifest, _make_and_meta_struct);
+          static assert(t.length==2);
+          auto doc_abstraction = t[dAM.abstraction];
+          auto doc_matters = t[dAM.matters];
+          if ((doc_matters.opt.action.debug_do)
+            || (_opt_action.debug_do_stages)
+          ) {
+            writeln("- stepX complete for [", manifest.src.filename, "]");
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_summary) {
+            import sisudoc.meta.metadoc_show_summary;
+            spineMetaDocSummary!()(doc_abstraction, doc_matters);
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_metadata) {
+            import sisudoc.meta.metadoc_show_metadata;
+            spineShowMetaData!()(doc_matters);
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_make) {
+            import sisudoc.meta.metadoc_show_make;
+            spineShowMake!()(doc_matters);
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.show_config) {
+            import sisudoc.meta.metadoc_show_config;
+            spineShowConfig!()(doc_matters);
+          }
+          if (doc_matters.opt.action.curate) {
+            auto _hvst = spineMetaDocCurate!()(doc_matters, hvst);
+            if (
+              _hvst.title.length > 0
+              && _hvst.author_surname_fn.length > 0
+            ) {
+              hvst.curates ~= _hvst;
+            } else {
+              if ((doc_matters.opt.action.debug_do)
+                || (_opt_action.debug_do_curate)
+                || (doc_matters.opt.action.vox_gt2)
+              ) {
+                writeln("WARNING curate: document header yaml does not contain information related to: title or author: ", _hvst.path_html_segtoc);
+              }
+            }
+          }
+          /+ ↓ debugs +/
+          if (doc_matters.opt.action.debug_do) {
+            spineDebugs!()(doc_abstraction, doc_matters);
+          }
+          /+ ↓ output hub +/
+          if (!(doc_matters.opt.action.skip_output)) {
+            if ((_opt_action.debug_do)
+              || (_opt_action.debug_do_stages)
+            ) {
+              writeln("step5 commence → (process outputs) [", manifest.src.filename, "]");
+            }
+            doc_abstraction.outputHub!()(doc_matters);
+            if ((_opt_action.debug_do)
+              || (_opt_action.debug_do_stages)
+            ) {
+              writeln("- step5 complete for [", manifest.src.filename, "]");
+            }
+          }
+          scope(exit) {
+            if (_opt_action.vox_gt0) {
+              writefln(
+                "processed file: %s [%s]",
+                manifest.src.filename,
+                manifest.src.language
+              );
+            }
+            destroy(manifest);
+          }
+        } else {
+          /+ no recognized filename provided +/
+          writeln("no recognized filename");
+          break; // terminate, stop
+        }
+      }
+    }
+  }
+  if (hvst.curates.length > 0) {
+    if (_opt_action.curate_topics) {
+      spineMetaDocCuratesTopics!()(hvst, _make_and_meta_struct, _opt_action);
+    }
+    if (_opt_action.curate_authors) {
+      spineMetaDocCuratesAuthors!()(hvst.curates, _make_and_meta_struct, _opt_action);
+    }
+    if (_opt_action.vox_gt0) {
+      import sisudoc.io_out.paths_output;
+      auto out_pth = spinePathsHTML!()(_make_and_meta_struct.conf.output_path, "");
+      if (_opt_action.curate_authors) {
+        writeln("- ", out_pth.curate("authors.html"));
+      }
+      if (_opt_action.curate_topics) {
+        writeln("- ", out_pth.curate("topics.html"));
+      }
+    }
+  } // else { writeln("NO METADATA CURATED"); }
+}