0.18.0 rename meta from ao (considered adr)

1 files changed, 6997 insertions, 0 deletions

diff --git a/org/meta_abstraction.org b/org/meta_abstraction.org
new file mode 100644
index 0000000..afc5eb1
--- /dev/null
+++ b/org/meta_abstraction.org
@@ -0,0 +1,6997 @@
+#+TITLE: sdp document abstraction
+#+AUTHOR: Ralph Amissah
+#+EMAIL: [[mailto:ralph.amissah@gmail.com][ralph.amissah@gmail.com]]
+#+DESCRIPTION for documents - structuring, publishing in multiple formats and search
+#+KEYWORDS
+#+LANGUAGE: en
+#+STARTUP: indent content
+#+OPTIONS: H:3 num:nil toc:t \n:nil @:t ::t |:t ^:nil _:nil -:t f:t *:t <:t
+#+OPTIONS: TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
+#+OPTIONS: author:nil email:nil creator:nil timestamp:nil
+#+PROPERTY: header-args :padline no :exports code :noweb yes
+#+EXPORT_SELECT_TAGS: export
+#+EXPORT_EXCLUDE_TAGS: noexport
+#+FILETAGS: :sdp:rel:meta:
+#+TAGS: assert(a) class(c) debug(d) mixin(m) sdp(s) tangle(T) template(t) WEB(W) noexport(n)
+
+[[./sdp.org][sdp]]  [[./][org/]]
+* 1. Document Abstraction                 :module:sdp:meta_metadoc_from_src:
+Process markup document, create document abstraction.
+
+** 0. module template
+
+#+BEGIN_SRC d :tangle ../src/sdp/meta/metadoc_from_src.d
+/++
+  document abstraction:
+  abstraction of sisu markup for downstream processing
+  meta_metadoc_from_src.d
++/
+module sdp.meta.metadoc_from_src;
+template SiSUdocAbstraction() {
+  /+ ↓ abstraction imports +/
+  <<abs_top_imports>>
+  /+ ↓ abstraction mixins +/
+  <<abs_top_mixins>>
+  /+ ↓ abstraction struct init +/
+  <<abs_top_init_struct>>
+  /+ ↓ abstract marked up document +/
+  auto SiSUdocAbstraction(Src,Make,Meta,Opt)(
+    Src                  markup_sourcefile_content,
+    Make                 dochead_make_aa,
+    Meta                 dochead_meta_aa,
+    Opt                  opt_action,
+  ) {
+    auto rgx = Rgx();
+    debug(asserts) {
+      static assert(is(typeof(markup_sourcefile_content) == char[][]));
+      static assert(is(typeof(dochead_make_aa)           == string[string][string]));
+      static assert(is(typeof(dochead_meta_aa)           == string[string][string]));
+      static assert(is(typeof(opt_action)                == bool[string]));
+    }
+    /+ ↓ abstraction init +/
+    <<abs_init_rest>>
+    /+ abstraction init ↑ +/
+    /+ ↓ loop markup document/text line by line +/
+    srcDocLoop:
+    foreach (line; markup_sourcefile_content) {
+      /+ ↓ markup document/text line by line +/
+      <<abs_in_loop_body_00>>
+      if (type["code"] == TriState.on) {
+        <<abs_in_loop_body_00_code_block>>
+      } 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 +/
+        <<abs_in_loop_body_non_code_obj>>
+        } else {
+          /+ not within a block group +/
+          <<abs_in_loop_body_open_block_obj_assert>>
+          if (line.matchFirst(rgx.block_open)) {
+            <<abs_in_loop_body_open_block_obj>>
+          } else if (!line.empty) {
+            /+ line not empty +/
+            /+ non blocks (headings, paragraphs) & closed blocks +/
+            <<abs_in_loop_body_not_block_obj>>
+          } else if (type["blocks"] == TriState.closing) {
+            /+ line empty, with blocks flag +/
+            <<abs_in_loop_body_not_block_obj_line_empty_blocks_flags>>
+          } else {
+            /+ line.empty, post contents, empty variables: +/
+            <<abs_in_loop_body_not_block_obj_line_empty>>
+          } // close else for line empty
+        } // close else for not the above
+      } // close after non code, other blocks or regular text
+      <<abs_in_loop_body_01>>
+    } /+ ← closed: loop markup document/text line by line +/
+    /+ ↓ post loop markup document/text +/
+    <<abs_post>>
+    /+ post loop markup document/text ↑ +/
+  } /+ ← closed: abstract doc source +/
+  /+ ↓ abstraction functions +/
+  <<abs_functions_object_reset>>
+  <<abs_functions_header_set_common>>
+  <<abs_functions_ocn_status>>
+  <<abs_functions_block>>
+  <<abs_functions_block_quote>>
+  <<abs_functions_block_group>>
+  <<abs_functions_block_block>>
+  <<abs_functions_block_poem>>
+  <<abs_functions_block_code>>
+  <<abs_functions_block_table>>
+  <<abs_functions_block_biblio>>
+  <<abs_functions_block_line_status_empty>>
+  <<abs_functions_book_index>>
+  <<abs_functions_heading>>
+  <<abs_functions_para>>
+  <<abs_functions_table>>
+  /+ abstraction functions ↑ +/
+  /+ ↓ abstraction function emitters +/
+  <<meta_emitters_ocn>>
+  /+ +/
+  <<meta_emitters_obj_inline_markup_munge>>
+  <<meta_emitters_obj_inline_markup>>
+  <<meta_emitters_obj_inline_markup_and_anchor_tags_and_misc>>
+  <<meta_emitters_obj_inline_markup_table_of_contents>>
+  <<meta_emitters_obj_inline_markup_private>>
+  <<meta_emitters_obj_inline_markup_heading_numbering_segment_anchor_tags>>
+  <<meta_emitters_obj_inline_markup_close>>
+  /+ +/
+  <<meta_emitters_obj_attributes>>
+  <<meta_emitters_obj_attributes_public>>
+  <<meta_emitters_obj_attributes_private>>
+  <<meta_emitters_obj_attributes_private_an_attribute>>
+  <<meta_emitters_obj_attributes_private_json>>
+  <<meta_emitters_obj_attributes_private_close>>
+  /+ +/
+  <<meta_emitters_book_index_nugget>>
+  <<meta_emitters_book_index_report_indented>>
+  <<meta_emitters_book_index_report_section>>
+  /+ +/
+  <<meta_emitters_endnotes>>
+  /+ +/
+  <<meta_emitters_bibliography>>
+  /+ +/
+  <<meta_emitters_metadata>>
+  /+ abstraction functions emitters ↑ +/
+  /+ ↓ abstraction functions assertions +/
+  <<abs_functions_assertions>>
+  /+ abstraction functions assertions ↑ +/
+} /+ ← closed: template SiSUdocAbstraction +/
+<<template_doc_sect_keys_seq>>
+#+END_SRC
+
+** 1. _pre loop processing_                                              :pre:
+*** imports                                                       :imports:
+[[./meta_defaults.org][meta_defaults]]
+
+#+name: abs_top_imports
+#+BEGIN_SRC d
+import sdp.meta;
+import
+  std.algorithm,
+  std.container,
+  std.file,
+  std.json,
+  std.path;
+import
+  sdp.meta.defaults,
+  sdp.meta.object_setter,
+  sdp.meta.rgx;
+#+END_SRC
+
+*** mixins                                                         :mixins:
+
+#+name: abs_top_mixins
+#+BEGIN_SRC d
+mixin ObjectSetter;
+mixin InternalMarkup;
+mixin SiSUrgxInit;
+#+END_SRC
+
+*** initialize                                                 :initialize:
+**** initialize general
+
+#+name: abs_top_init_struct
+#+BEGIN_SRC d
+/+ initialize +/
+ObjGenericComposite[][string] the_table_of_contents_section;
+ObjGenericComposite[] the_document_head_section, the_document_body_section, the_bibliography_section, the_glossary_section, the_blurb_section;
+ObjGenericComposite[] the_dom_tail_section;
+string[string] an_object, processing;
+string an_object_key;
+string[] anchor_tags;
+string anchor_tag_;
+string segment_anchor_tag_that_object_belongs_to;
+string segment_anchor_tag_that_object_belongs_to_uri;
+/+ enum +/
+enum State { off, on }
+enum TriState { off, on, closing }
+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
+/+ 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";
+auto obj_im = ObjInlineMarkup();
+auto obj_att = ObjAttributes();
+/+ ocn +/
+int obj_cite_number, obj_cite_number_;
+auto object_citation_number = OCNemitter();
+int[] dom_markedup = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+int[] dom_markedup_buffer = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+int[] dom_collapsed = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+int[] dom_collapsed_buffer = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+enum DomTags { none, open, close, close_and_open, open_still, }
+#+END_SRC
+
+**** initialize heading ancestors
+
+#+name: abs_top_init_struct
+#+BEGIN_SRC d
+auto obj_heading_ancestors(O)(
+  O          obj,
+  string[]   lv_ancestors_txt,
+) {
+  switch (obj.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.heading_ancestors_text = lv_ancestors_txt.dup;
+  }
+  return obj;
+}
+#+END_SRC
+
+**** initialize dom markup tags
+
+#+name: abs_top_init_struct
+#+BEGIN_SRC d
+auto obj_dom_set_markup_tags(O)(
+  O           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.dom_markedup = dom.dup;
+  return obj;
+}
+#+END_SRC
+
+**** initialize dom collapsed tags
+
+#+name: abs_top_init_struct
+#+BEGIN_SRC d
+auto obj_dom_set_collapsed_tags(O)(
+  O           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.dom_collapsed = dom.dup;
+  return obj;
+}
+#+END_SRC
+
+**** initialize ocn emit
+
+#+name: abs_top_init_struct
+#+BEGIN_SRC d
+int ocn_emit(int ocn_status_flag) {
+  return object_citation_number.ocn_emitter(ocn_status_flag);
+}
+/+ book index variables +/
+string book_idx_tmp;
+string[][string][string] bookindex_unordered_hashes;
+/+ node +/
+ObjGenericComposite comp_obj_heading, comp_obj_location, comp_obj_block, comp_obj_code, comp_obj_poem_ocn, comp_obj_comment;
+auto node_construct = NodeStructureMetadata();
+enum sObj { content, anchor_tags, notes_reg, notes_star, links }
+#+END_SRC
+
+*** scope
+
+#+name: abs_init_rest
+#+BEGIN_SRC d
+scope(success) {
+}
+scope(failure) {
+}
+scope(exit) {
+  destroy(the_document_head_section);
+  destroy(the_table_of_contents_section);
+  destroy(the_document_body_section);
+  destroy(the_bibliography_section);
+  destroy(an_object);
+  destroy(processing);
+  destroy(biblio_arr_json);
+  previous_length=0;
+  reset_note_numbers=true;
+}
+#+END_SRC
+
+*** init rest
+
+#+name: abs_init_rest
+#+BEGIN_SRC d
+mixin SiSUrgxInitFlags;
+mixin SiSUnode;
+auto node_para_int_    = node_metadata_para_int;
+auto node_para_str_    = node_metadata_para_str;
+ObjGenericComposite comp_obj_heading_, comp_obj_para, comp_obj_toc;
+line_occur = [
+  "heading"  : 0,
+  "para"     : 0,
+  "glossary" : 0,
+  "blurb"    : 0,
+];
+auto type = flags_type_init;
+string[string] obj_cite_number_poem = [
+  "start" : "",
+  "end"   : ""
+];
+string[] lv_ancestors_txt = [ "", "", "", "", "", "", "", "", ];
+int[string] lv = [
+  "lv" : State.off,
+  "h0" : State.off,
+  "h1" : State.off,
+  "h2" : State.off,
+  "h3" : State.off,
+  "h4" : State.off,
+  "h5" : State.off,
+  "h6" : State.off,
+  "h7" : State.off,
+  "lev_int_collapsed" : 0,
+];
+int[string] collapsed_lev = [
+  "h0" : State.off,
+  "h1" : State.off,
+  "h2" : State.off,
+  "h3" : State.off,
+  "h4" : State.off,
+  "h5" : State.off,
+  "h6" : State.off,
+  "h7" : State.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)"
+];
+auto 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_heading_                       = comp_obj_heading_.init;
+comp_obj_heading_.use                   = "frontmatter";
+comp_obj_heading_.is_of                 = "para";
+comp_obj_heading_.is_a                  = "heading";
+comp_obj_heading_.text                  = "Table of Contents";
+comp_obj_heading_.ocn                   = 0;
+comp_obj_heading_.obj_cite_number       = "";
+comp_obj_heading_.segment_anchor_tag    = "toc";
+comp_obj_heading_.marked_up_level       = "1";
+comp_obj_heading_.heading_lev_markup    = 4;
+comp_obj_heading_.heading_lev_collapsed = 1;
+comp_obj_heading_.parent_ocn            = 1;
+comp_obj_heading_.parent_lev_markup     = 0;
+comp_obj_heading_.ptr_html_segnames     = html_segnames_ptr;
+comp_obj_heading_.anchor_tags           = ["toc"];
+comp_obj_heading_.dom_markedup          = [ 1, 1, 0, 0, 1, 0, 0, 0];
+comp_obj_heading_.dom_collapsed         = [ 1, 1, 1, 0, 0, 0, 0, 0];
+auto toc_head                           = comp_obj_heading_;
+html_segnames_ptr_cntr++;
+the_table_of_contents_section = [
+  "seg": [toc_head],
+  "scroll": [toc_head],
+];
+auto mkup = InlineMarkup();
+auto munge = ObjInlineMarkupMunge();
+auto note_section = NotesSection();
+auto bookindex_extract_hash = BookIndexNuggetHash();
+string[][string] lev4_subtoc;
+string[] html_segnames=["toc"];
+int cnt1 = 1; int cnt2 = 1; int cnt3 = 1;
+#+END_SRC
+
+** 2. _loop: process document body_ [+6]                                :loop:
+*** loop scope                                                      :scope:
+
+#+name: abs_in_loop_body_00
+#+BEGIN_SRC d
+/+ scope +/
+scope(exit) {
+}
+scope(failure) {
+  stderr.writefln(
+    "%s\n%s\n%s:%s failed here:\n  line: %s",
+    __MODULE__, __FUNCTION__,
+    __FILE__, __LINE__,
+    line,
+  );
+}
+line = (line).replaceAll(rgx.true_dollar, "$$$$");
+  /+ dollar represented as $$ needed to stop submatching on $
+     (substitutions using ${identifiers} must take into account (i.e. happen earlier))
+   +/
+debug(source) {                                  // source lines
+  writeln(line);
+}
+debug(srclines) {
+  if (!line.empty) {                             // source lines, not empty
+    writefln(
+      "* %s",
+      line
+    );
+  }
+}
+#+END_SRC
+
+*** check whether obj_cite_number is on or turned off                 :ocn:
+
+#+name: abs_in_loop_body_00
+#+BEGIN_SRC d
+if (!line.empty) {
+  _check_ocn_status_(line, type);
+}
+#+END_SRC
+
+*** [#A] separate _code blocks_ from _other markup text_ [+5]
+**** _code blocks_                                            :block:code:
+
+#+name: abs_in_loop_body_00_code_block
+#+BEGIN_SRC d
+/+ block object: code +/
+_code_block_(line, an_object, type);
+continue;
+#+END_SRC
+
+**** _non code objects_ (other blocks or regular text) [+4]     :non_code:
+***** in section (biblio, glossary, blurb) +(block group)+ [+1] :block:active:
+****** in section: biblio                                       :biblio:
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+if (line.matchFirst(rgx.heading_biblio)
+|| (type["biblio_section"] == State.on
+&& (!(line.matchFirst(rgx.heading_blurb_glossary)))
+&& (!(line.matchFirst(rgx.heading)))
+&& (!(line.matchFirst(rgx.comment))))) {
+  /+ within section (block object): biblio +/
+  type["glossary_section"] = State.off;
+  type["biblio_section"] = State.on;
+  type["blurb_section"] = State.off;
+  if (opt_action["backmatter"] && opt_action["section_biblio"]) {
+    _biblio_block_(line, type, bib_entry, biblio_entry_str_json, biblio_arr_json);
+    debug(bibliobuild) {
+      writeln("-  ", biblio_entry_str_json);
+      writeln("-> ", biblio_arr_json.length);
+    }
+  }
+  continue;
+#+END_SRC
+
+****** in section: glossary                                   :glossary:
+
+if there is a glossary section you need to:
+- extract it
+- create standard headings
+- markup contents in standard way like regular paragraphs
+  - need indentation and regular paragraph inline markup
+- reconstitute the document with the glossary section following the endnotes
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+} else if (line.matchFirst(rgx.heading_glossary)
+|| (type["glossary_section"] == State.on
+&& (!(line.matchFirst(rgx.heading_biblio_blurb)))
+&& (!(line.matchFirst(rgx.heading)))
+&& (!(line.matchFirst(rgx.comment))))) {
+  /+ within section (block object): glossary +/
+  debug(glossary) {
+    writeln(__LINE__);
+    writeln(line);
+  }
+  type["glossary_section"] = State.on;
+  type["biblio_section"] = State.off;
+  type["blurb_section"] = State.off;
+  if (opt_action["backmatter"] && opt_action["section_glossary"]) {
+    indent=[
+      "hang_position" : 0,
+      "base_position" : 0,
+    ];
+    bullet = false;
+    type["para"] = State.on;
+    line_occur["para"] = State.off;
+    an_object_key="glossary_nugget"; //
+    if (line.matchFirst(rgx.heading_glossary)) {
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Glossary";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "_part_glossary";
+      comp_obj_heading_.marked_up_level       = "B";
+      comp_obj_heading_.heading_lev_markup    = 1;
+      comp_obj_heading_.heading_lev_collapsed = 1;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      comp_obj_heading_.dom_markedup          = [ 1, 1, 0, 0, 0, 0, 0, 0];
+      comp_obj_heading_.dom_collapsed         = [ 1, 1, 0, 0, 0, 0, 0, 0];
+      the_glossary_section                    ~= comp_obj_heading_;
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Glossary";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "glossary";
+      comp_obj_heading_.marked_up_level       = "1";
+      comp_obj_heading_.heading_lev_markup    = 4;
+      comp_obj_heading_.heading_lev_collapsed = 2;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      comp_obj_heading_.dom_markedup          = [ 1, 1, 0, 0, 1, 0, 0, 0];
+      comp_obj_heading_.dom_collapsed         = [ 1, 1, 1, 0, 0, 0, 0, 0];
+      comp_obj_heading_.anchor_tags           = ["glossary"];
+      the_glossary_section                    ~= comp_obj_heading_;
+    } else {
+      _para_match_(line, an_object, an_object_key, indent, bullet, type, line_occur);
+      comp_obj_para                       = comp_obj_para.init;
+      comp_obj_para.use                   = "backmatter";
+      comp_obj_para.is_of                 = "para";
+      comp_obj_para.is_a                  = "glossary";
+      comp_obj_para.text                  = line.to!string.strip;
+      comp_obj_para.ocn                   = 0;
+      comp_obj_para.obj_cite_number       = "";
+      comp_obj_para.indent_hang           = indent["hang_position"];
+      comp_obj_para.indent_base           = indent["base_position"];
+      comp_obj_para.bullet                = bullet;
+      the_glossary_section                ~= comp_obj_para;
+    }
+    type["ocn_status"] = TriState.off;
+  }
+  continue;
+#+END_SRC
+
+****** in section: blurb                                         :blurb:
+
+if there is a blurb section you need to:
+- extract it
+- create standard headings (or use line provided in 1~ heading)
+- markup contents in standard way like regular paragraphs
+  - need regular paragraph inline markup
+- reconstitute the document with the blurb section at the very end of the doucment
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+} else if (line.matchFirst(rgx.heading_blurb)
+|| (type["blurb_section"] == State.on
+&& (!(line.matchFirst(rgx.heading_biblio_glossary)))
+&& (!(line.matchFirst(rgx.heading)))
+&& (!(line.matchFirst(rgx.comment))))) {
+  /+ within section (block object): blurb +/
+  debug(blurb) {
+    writeln(__LINE__);
+    writeln(line);
+  }
+  type["glossary_section"] = State.off;
+  type["biblio_section"] = State.off;
+  type["blurb_section"] = State.on;
+  if (opt_action["backmatter"] && opt_action["section_blurb"]) {
+    indent=[
+      "hang_position" : 0,
+      "base_position" : 0,
+    ];
+    bullet = false;
+    type["para"] = State.on;
+    line_occur["para"] = State.off;
+    an_object_key="blurb_nugget";
+    if (line.matchFirst(rgx.heading_blurb)) {
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Blurb";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "_part_blurb";
+      comp_obj_heading_.marked_up_level       = "B";
+      comp_obj_heading_.heading_lev_markup    = 1;
+      comp_obj_heading_.heading_lev_collapsed = 1;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      comp_obj_heading_.dom_markedup          = [ 1, 1, 0, 0, 0, 0, 0, 0];
+      comp_obj_heading_.dom_collapsed         = [ 1, 1, 0, 0, 0, 0, 0, 0];
+      the_blurb_section                       ~= comp_obj_heading_;
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Blurb";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "blurb";
+      comp_obj_heading_.marked_up_level       = "1";
+      comp_obj_heading_.heading_lev_markup    = 4;
+      comp_obj_heading_.heading_lev_collapsed = 2;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      comp_obj_heading_.anchor_tags           = ["blurb"];
+      comp_obj_heading_.dom_markedup          = [ 1, 1, 0, 0, 1, 0, 0, 0];
+      comp_obj_heading_.dom_collapsed         = [ 1, 1, 1, 0, 0, 0, 0, 0];
+      the_blurb_section                       ~= comp_obj_heading_;
+    } else if (line.matchFirst(rgx.heading)
+    && (opt_action["backmatter"] && opt_action["section_blurb"])) {
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = line.to!string;
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "blurb";
+      comp_obj_heading_.marked_up_level       = an_object["lev"].to!string;
+      comp_obj_heading_.heading_lev_markup    = an_object["lev_markup_number"].to!int;    // make int, remove need to conv
+      comp_obj_heading_.heading_lev_collapsed = an_object["lev_collapsed_number"].to!int; // make int, remove need to conv
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      the_blurb_section                   ~= comp_obj_heading_;
+    } else {
+      _para_match_(line, an_object, an_object_key, indent, bullet, type, line_occur);
+      comp_obj_para                       = comp_obj_para.init;
+      comp_obj_para.use                   = "backmatter";
+      comp_obj_para.is_of                 = "para";
+      comp_obj_para.is_a                  = "blurb";
+      comp_obj_para.text                  = line.to!string.strip;
+      comp_obj_para.ocn                   = 0;
+      comp_obj_para.obj_cite_number       = "";
+      comp_obj_para.indent_hang           = indent["hang_position"];
+      comp_obj_para.indent_base           = indent["base_position"];
+      comp_obj_para.bullet                = bullet;
+      the_blurb_section                   ~= comp_obj_para;
+    }
+    type["ocn_status"] = TriState.off;
+  }
+  continue;
+#+END_SRC
+
+***** in blocks [+1]                                       :block:active:
+****** in block: quote                                           :quote:
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+} else if (type["quote"] == TriState.on) {
+  /+ within block object: quote +/
+  _quote_block_(line, an_object, type);
+  continue;
+#+END_SRC
+
+****** in block: group                                           :group:
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+/+ within block object: group +/
+} else if (type["group"] == TriState.on) {
+  /+ within block object: group +/
+  line = (line)
+    .replaceAll(rgx.para_delimiter, mkup.br_paragraph ~ "$1");
+  _group_block_(line, an_object, type);
+  continue;
+#+END_SRC
+
+****** in block: block                                           :block:
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+} else if (type["block"] == TriState.on) {
+  /+ within block object: block +/
+  if (auto m = line.match(rgx.spaces_line_start)) {
+    line = (line)
+      .replaceAll(rgx.spaces_line_start, (m.captures[1]).translate([ ' ' : mkup.nbsp ]));
+  }
+  if (auto m = line.match(rgx.spaces_multiple)) {
+    line = (line)
+      .replaceAll(rgx.spaces_multiple, (m.captures[1]).translate([ ' ' : mkup.nbsp ]));
+  }
+  _block_block_(line, an_object, type);
+  continue;
+#+END_SRC
+
+****** in block: poem                                             :poem:
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+} else if (type["poem"] == TriState.on) {
+  /+ within block object: poem +/
+  _poem_block_(line, an_object, type, cntr, obj_cite_number_poem, dochead_make_aa);
+  continue;
+#+END_SRC
+
+****** in block: table                                           :table:
+
+#+name: abs_in_loop_body_non_code_obj
+#+BEGIN_SRC d
+} else if (type["table"] == TriState.on) {
+  /+ within block object: table +/
+  _table_block_(line, an_object, type, dochead_make_aa);
+  continue;
+#+END_SRC
+
+***** not identified as being within block group (could still be, or not) [+3]
+****** assert
+
+#+name: abs_in_loop_body_open_block_obj_assert
+#+BEGIN_SRC d
+assert(
+  (type["blocks"] == TriState.off)
+  || (type["blocks"] == TriState.closing),
+  "block status: none or closed"
+);
+assertions_flag_types_block_status_none_or_closed(type);
+#+END_SRC
+
+****** catch misc +block open+
+
+#+name: abs_in_loop_body_open_block_obj
+#+BEGIN_SRC d
+if (line.matchFirst(rgx.block_poem_open)) {
+  /+ poem to verse exceptions! +/
+  object_reset(an_object);
+  processing.remove("verse");
+  obj_cite_number_poem["start"] = obj_cite_number.to!string;
+}
+_start_block_(line, type, obj_cite_number_poem);
+continue;
+#+END_SRC
+
+****** line not empty [+2]
+******* asserts                                                :assert:
+
+#+name: abs_in_loop_body_not_block_obj
+#+BEGIN_SRC d
+assert(
+  !line.empty,
+  "line tested, line not empty surely:\n  \"" ~ line ~ "\""
+);
+assert(
+  (type["blocks"] == TriState.off)
+  || (type["blocks"] == TriState.closing),
+  "code block status: none or closed"
+);
+if (type["blocks"] == TriState.closing) {
+  debug(check) {                           // block
+    writeln(__LINE__);
+    writeln(line);
+  }
+  assert(
+    line.matchFirst(rgx.book_index)
+    || line.matchFirst(rgx.book_index_open)
+    || type["book_index"] == State.on,
+    "\nblocks closed, unless followed by book index, non-matching line:\n  \""
+    ~ line ~ "\""
+  );
+}
+#+END_SRC
+
+******* book index                                          :bookindex:
+
+#+name: abs_in_loop_body_not_block_obj
+#+BEGIN_SRC d
+if (line.matchFirst(rgx.book_index)
+|| line.matchFirst(rgx.book_index_open)
+|| type["book_index"] == State.on )  {
+  /+ book_index +/
+  _book_index_(line, book_idx_tmp, an_object, type, opt_action);
+#+END_SRC
+
+******* not book index [+1]
+
+#+name: abs_in_loop_body_not_block_obj
+#+BEGIN_SRC d
+} else {
+  /+ not book_index +/
+#+END_SRC
+
+******** matched: comment                              :comment:match:
+
+#+name: abs_in_loop_body_not_block_obj
+#+BEGIN_SRC d
+  an_object_key="body_nugget";
+  if (auto m = matchFirst(line, 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.use               = "comment";
+    comp_obj_comment.is_of             = "comment";
+    comp_obj_comment.is_a              = "comment";
+    comp_obj_comment.text              = an_object[an_object_key].strip;
+    the_document_body_section          ~= comp_obj_comment;
+    _common_reset_(line_occur, an_object, type);
+    processing.remove("verse");
+    ++cntr;
+#+END_SRC
+
+******** flag !set & line !exist: heading or para  :heading:paragraph:
+
+#+name: abs_in_loop_body_not_block_obj
+#+BEGIN_SRC d
+  } else if (((line_occur["para"] == State.off)
+  && (line_occur["heading"] == State.off))
+  && ((type["para"] == State.off)
+  && (type["heading"] == State.off))) {
+    /+ heading or para but neither flag nor line exists +/
+    if ((dochead_make_aa["make"]["headings"].length > 2)
+    && (type["make_headings"] == State.off)) {
+      /+ heading found +/
+      _heading_found_(line, dochead_make_aa["make"]["headings"], heading_match_str, heading_match_rgx, type);
+    }
+    if ((type["make_headings"] == State.on)
+    && ((line_occur["para"] == State.off)
+    && (line_occur["heading"] == State.off))
+    && ((type["para"] == State.off)
+    && (type["heading"] == State.off))) {
+      /+ heading make set +/
+      line = _heading_make_set_(line, line_occur, heading_match_rgx, type);
+    }
+    /+ 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.heading)) {
+      /+ heading match +/
+      _heading_matched_(line, line_occur, an_object, an_object_key, lv, collapsed_lev, type, dochead_meta_aa);
+    } else if (line_occur["para"] == State.off) {
+      /+ para match +/
+      an_object_key="body_nugget";
+      _para_match_(line, an_object, an_object_key, indent, bullet, type, line_occur);
+    }
+#+END_SRC
+
+******** line exist: heading                                 :heading:
+
+#+name: abs_in_loop_body_not_block_obj
+#+BEGIN_SRC d
+  } else if (line_occur["heading"] > State.off) {
+    /+ heading +/
+    debug(heading) {
+      writeln(line);
+    }
+    an_object[an_object_key] ~= line ~= "\n";
+    ++line_occur["heading"];
+#+END_SRC
+
+******** line exist: para                                       :para:
+
+#+name: abs_in_loop_body_not_block_obj
+#+BEGIN_SRC d
+  } else if (line_occur["para"] > State.off) {
+    /+ paragraph +/
+    debug(para) {
+      writeln(an_object_key, "-> ", line);
+    }
+    an_object[an_object_key] ~= " " ~ line;
+    ++line_occur["para"];
+  }
+}
+#+END_SRC
+
+****** line empty, with block flag
+
+#+name: abs_in_loop_body_not_block_obj_line_empty_blocks_flags
+#+BEGIN_SRC d
+_block_flag_line_empty_(
+  bookindex_extract_hash,
+  line,
+  an_object,
+  the_document_body_section,
+  bookindex_unordered_hashes,
+  obj_cite_number,
+  comp_obj_heading,
+  cntr,
+  type,
+  obj_cite_number_poem,
+  dochead_make_aa
+);
+#+END_SRC
+
+****** line empty [+1]
+******* assert line empty                                      :assert:
+
+#+name: abs_in_loop_body_not_block_obj_line_empty
+#+BEGIN_SRC d
+assert(
+  line.empty,
+  "\nline should be empty:\n  \""
+  ~ line ~ "\""
+);
+assert(
+  (type["blocks"] == State.off),
+  "code block status: none"
+);
+#+END_SRC
+
+******* heading object                                 :heading:object:
+
+#+name: abs_in_loop_body_not_block_obj_line_empty
+#+BEGIN_SRC d
+if ((type["heading"] == State.on)
+&& (line_occur["heading"] > State.off)) {
+  /+ heading object (current line empty) +/
+  obj_cite_number = (an_object["lev_markup_number"].to!int == 0)
+  ? (ocn_emit(3))
+  : (obj_cite_number = ocn_emit(type["ocn_status"]));
+  an_object["is"] = "heading";
+  an_object_key="body_nugget";
+  auto substantive_object_and_anchor_tags_tuple =
+    obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+  an_object["substantive"] = substantive_object_and_anchor_tags_tuple[sObj.content];
+  anchor_tags = substantive_object_and_anchor_tags_tuple[sObj.anchor_tags];
+  if (an_object["lev_markup_number"].to!int == 4) {
+    segment_anchor_tag_that_object_belongs_to = anchor_tags[0];
+    segment_anchor_tag_that_object_belongs_to_uri = anchor_tags[0] ~ ".fnSuffix";
+    anchor_tag_ = anchor_tags[0];
+  } else if (an_object["lev_markup_number"].to!int > 4) {
+    segment_anchor_tag_that_object_belongs_to = anchor_tag_;
+    segment_anchor_tag_that_object_belongs_to_uri = anchor_tag_ ~ ".fnSuffix#" ~ obj_cite_number.to!string;
+  } else if (an_object["lev_markup_number"].to!int < 4) {
+  string segn;
+    switch (an_object["lev_markup_number"].to!int) {
+    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:
+      segment_anchor_tag_that_object_belongs_to = segn;
+      segment_anchor_tag_that_object_belongs_to_uri = segn ~ ".fnSuffix";
+      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_number, segment_anchor_tag_that_object_belongs_to);
+  /+ (incrementally build toc) table of contents here! +/
+  _anchor_tag=to!string(obj_cite_number);
+  the_table_of_contents_section = obj_im.table_of_contents_gather_headings(
+    an_object,
+    dochead_make_aa,
+    segment_anchor_tag_that_object_belongs_to,
+    _anchor_tag,
+    lev4_subtoc,
+    the_table_of_contents_section,
+  );
+  if (an_object["lev_markup_number"] == "4") {
+    html_segnames ~= segment_anchor_tag_that_object_belongs_to;
+    html_segnames_ptr = html_segnames_ptr_cntr;
+    html_segnames_ptr_cntr++;
+  }
+  auto comp_obj_heading =
+    node_construct.node_emitter_heading(
+      an_object["substantive"],                     // string
+      an_object["lev"],                             // string
+      an_object["lev_markup_number"],               // string
+      an_object["lev_collapsed_number"],            // string
+      segment_anchor_tag_that_object_belongs_to,    // string
+      obj_cite_number,                              // int
+      cntr,                                         // int
+      heading_ptr,                                  // int
+      lv_ancestors_txt,                             // string[]
+      an_object["is"],                              // string
+      html_segnames_ptr,                            // int
+      substantive_object_and_anchor_tags_tuple[sObj.notes_reg],
+      substantive_object_and_anchor_tags_tuple[sObj.notes_star],
+      substantive_object_and_anchor_tags_tuple[sObj.links],
+    );
+  ++heading_ptr;
+  debug(segments) {
+    writeln(an_object["lev_markup_number"]);
+    writeln(segment_anchor_tag_that_object_belongs_to);
+  }
+  the_document_body_section ~= comp_obj_heading;
+  debug(objectrelated1) { // check
+    writeln(line);
+  }
+  _common_reset_(line_occur, an_object, type);
+  an_object.remove("lev");
+  an_object.remove("lev_markup_number");
+  processing.remove("verse");
+  ++cntr;
+#+END_SRC
+
+******* paragraph object                             :paragraph:object:
+
+#+name: abs_in_loop_body_not_block_obj_line_empty
+#+BEGIN_SRC d
+} else if ((type["para"] == State.on)
+&& (line_occur["para"] > State.off)) {
+  /+ paragraph object (current line empty) +/
+  obj_cite_number = ocn_emit(type["ocn_status"]);
+  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_number, segment_anchor_tag_that_object_belongs_to);
+  an_object["is"] = "para";
+  auto comp_obj_heading =
+    node_construct.node_location_emitter(
+      content_non_header,
+      segment_anchor_tag_that_object_belongs_to,
+      obj_cite_number,
+      cntr,
+      heading_ptr-1,
+      an_object["is"],
+    );
+  auto substantive_obj_misc_tuple =
+    obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+  an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+  anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+  comp_obj_para                       = comp_obj_para.init;
+  comp_obj_para.use                   = "body";
+  comp_obj_para.is_of                 = "para";
+  comp_obj_para.is_a                  = "para";
+  comp_obj_para.text                  = an_object["substantive"].to!string.strip;
+  comp_obj_para.ocn                   = obj_cite_number;
+  comp_obj_para.obj_cite_number       = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+  comp_obj_para.indent_hang           = indent["hang_position"];
+  comp_obj_para.indent_base           = indent["base_position"];
+  comp_obj_para.bullet                = bullet;
+  comp_obj_para.anchor_tags           = anchor_tags;
+  comp_obj_para.inline_notes_reg      = substantive_obj_misc_tuple[sObj.notes_reg];
+  comp_obj_para.inline_notes_star     = substantive_obj_misc_tuple[sObj.notes_star];
+  comp_obj_para.inline_links          = substantive_obj_misc_tuple[sObj.links];
+  the_document_body_section           ~= comp_obj_para;
+  _common_reset_(line_occur, an_object, type);
+  indent=[
+    "hang_position" : 0,
+    "base_position" : 0,
+  ];
+  bullet = false;
+  processing.remove("verse");
+  ++cntr;
+} else {
+  assert(
+    line == null,
+    "line variable should be empty, should not occur"
+  );
+}
+#+END_SRC
+
+*** regular text objects                                   :text:paragraph:
+
+#+name: abs_in_loop_body_01
+#+BEGIN_SRC d
+/+ unless (the_document_body_section.length == 0) ? +/
+if (the_document_body_section.length > 0) {
+  if (((the_document_body_section[$-1].is_a == "para")
+    || (the_document_body_section[$-1].is_a == "heading")
+    || (the_document_body_section[$-1].is_a == "quote")
+    || (the_document_body_section[$-1].is_a == "group")
+    || (the_document_body_section[$-1].is_a == "block")
+    || (the_document_body_section[$-1].is_a == "verse"))
+  && (the_document_body_section.length > previous_length)) {
+    if ((the_document_body_section[$-1].is_a == "heading")
+    && (the_document_body_section[$-1].heading_lev_markup < 5)) {
+      type["biblio_section"] = State.off;
+      type["glossary_section"] = State.off;
+      type["blurb_section"] = State.off;
+    }
+    if (the_document_body_section[$-1].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].is_a == "verse") {
+          if ((the_document_body_section[i].text).match(
+            rgx.inline_notes_delimiter_al_regular_number_note
+          )) {
+            note_section.gather_notes_for_endnote_section(
+              the_document_body_section,
+              segment_anchor_tag_that_object_belongs_to,
+              to!int(i),
+            );
+          }
+        }
+      }
+    } 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_delimiter_al_regular_number_note
+      )) {
+        previous_count=(the_document_body_section.length -1).to!int;
+        note_section.gather_notes_for_endnote_section(
+          the_document_body_section,
+          segment_anchor_tag_that_object_belongs_to,
+          to!int(the_document_body_section.length-1),
+        );
+      }
+    }
+    previous_length = the_document_body_section.length.to!int;
+  }
+}
+#+END_SRC
+
+** 3. _post main-loop processing_                                       :post:
+*** misc
+
+/+
+  Backmatter:
+  - endnotes
+  - glossary
+  - bibliography / references
+  - book index
+  - blurb
++/
+
+*** tie up preparation of document sections
+**** endnotes section (scroll & seg)                            :endnotes:
+
+#+name: abs_post
+#+BEGIN_SRC d
+auto en_tuple =
+  note_section.endnote_objects(obj_cite_number, opt_action);
+static assert(!isTypeTuple!(en_tuple));
+auto the_endnotes_section = en_tuple[0];
+obj_cite_number = en_tuple[1];
+debug(endnotes) {
+  writefln(
+    "%s %s",
+    __LINE__,
+    the_endnotes_section.length
+  );
+  foreach (o; the_endnotes_section) {
+    writeln(o);
+  }
+}
+#+END_SRC
+
+**** no glossary section?                                       :glossary:
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (an_object["glossary_nugget"].length == 0) {
+  comp_obj_heading_                       = comp_obj_heading_.init;
+  comp_obj_heading_.use                   = "empty";
+  comp_obj_heading_.is_of                 = "para";
+  comp_obj_heading_.is_a                  = "heading";
+  comp_obj_heading_.text                  = "(skip) there is no Glossary section";
+  comp_obj_heading_.ocn                   = 0;
+  comp_obj_heading_.obj_cite_number       = "";
+  comp_obj_heading_.marked_up_level       = "B";
+  comp_obj_heading_.heading_lev_markup    = 1;
+  comp_obj_heading_.heading_lev_collapsed = 1;
+  comp_obj_heading_.parent_ocn            = 1;
+  comp_obj_heading_.parent_lev_markup     = 0;
+  the_glossary_section                    ~= comp_obj_heading_;
+} else {
+  writeln("gloss");
+}
+debug(glossary) {
+  foreach (gloss; the_glossary_section) {
+    writeln(gloss.text);
+  }
+}
+#+END_SRC
+
+**** bibliography section (objects)                         :bibliography:
+
+#+name: abs_post
+#+BEGIN_SRC d
+auto biblio_unsorted_incomplete = biblio_arr_json.dup;
+auto biblio = Bibliography();
+auto biblio_ordered =
+  biblio._bibliography_(biblio_unsorted_incomplete, bib_arr_json);
+#+END_SRC
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (biblio_ordered.length > 0) {
+  comp_obj_heading_                       = comp_obj_heading_.init;
+  comp_obj_heading_.use                   = "backmatter";
+  comp_obj_heading_.is_of                 = "para";
+  comp_obj_heading_.is_a                  = "heading";
+  comp_obj_heading_.text                  = "Bibliography";
+  comp_obj_heading_.ocn                   = 0;
+  comp_obj_heading_.obj_cite_number       = "";
+  comp_obj_heading_.segment_anchor_tag    = "_part_bibliography";
+  comp_obj_heading_.marked_up_level       = "B";
+  comp_obj_heading_.heading_lev_markup    = 1;
+  comp_obj_heading_.heading_lev_collapsed = 1;
+  comp_obj_heading_.parent_ocn            = 1;
+  comp_obj_heading_.parent_lev_markup     = 0;
+  the_bibliography_section                ~= comp_obj_heading_;
+  comp_obj_heading_                       = comp_obj_heading_.init;
+  comp_obj_heading_.use                   = "backmatter";
+  comp_obj_heading_.is_of                 = "para";
+  comp_obj_heading_.is_a                  = "heading";
+  comp_obj_heading_.text                  = "Bibliography";
+  comp_obj_heading_.ocn                   = 0;
+  comp_obj_heading_.obj_cite_number       = "";
+  comp_obj_heading_.segment_anchor_tag    = "bibliography";
+  comp_obj_heading_.marked_up_level       = "1";
+  comp_obj_heading_.heading_lev_markup    = 4;
+  comp_obj_heading_.heading_lev_collapsed = 2;
+  comp_obj_heading_.parent_ocn            = 1;
+  comp_obj_heading_.parent_lev_markup     = 0;
+  comp_obj_heading_.anchor_tags           = ["bibliography"];
+  the_bibliography_section                ~= comp_obj_heading_;
+} else {
+  comp_obj_heading_                       = comp_obj_heading_.init;
+  comp_obj_heading_.use                   = "empty";
+  comp_obj_heading_.is_of                 = "para";
+  comp_obj_heading_.is_a                  = "heading";
+  comp_obj_heading_.text                  = "(skip) there is no Bibliography";
+  comp_obj_heading_.ocn                   = 0;
+  comp_obj_heading_.obj_cite_number       = "";
+  comp_obj_heading_.marked_up_level       = "B";
+  comp_obj_heading_.heading_lev_markup    = 1;
+  comp_obj_heading_.heading_lev_collapsed = 1;
+  comp_obj_heading_.parent_ocn            = 1;
+  comp_obj_heading_.parent_lev_markup     = 0;
+  the_bibliography_section                ~= comp_obj_heading_;
+}
+#+END_SRC
+
+***** format biblio string
+
+#+name: abs_post
+#+BEGIN_SRC d
+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) ? "" : ", /{" ~ entry["journal"].str ~ "}/"),
+    ((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_para                       = comp_obj_para.init;
+  comp_obj_para.use                   = "backmatter";
+  comp_obj_para.is_of                 = "para";
+  comp_obj_para.is_a                  = "bibliography";
+  comp_obj_para.text                  = out_.to!string.strip;
+  comp_obj_para.ocn                   = 0;
+  comp_obj_para.obj_cite_number       = "";
+  comp_obj_para.indent_hang           = 0;
+  comp_obj_para.indent_base           = 1;
+  comp_obj_para.bullet                = bullet;
+  comp_obj_para.anchor_tags           = anchor_tags;
+  the_bibliography_section            ~= comp_obj_para;
+}
+#+END_SRC
+
+#+name: abs_post
+#+BEGIN_SRC d
+debug(bibliosection) {
+  foreach (o; the_bibliography_section) {
+    writeln(o.text);
+  }
+}
+#+END_SRC
+
+***** bibliography components
+
+auto biblio_entry_tags_jsonstr =  `{
+  "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
+
+**** bookindex section (scroll & seg)                         :book:index:
+
+#+name: abs_post
+#+BEGIN_SRC d
+auto bi = BookIndexReportSection();
+auto bi_tuple =
+  bi.bookindex_build_abstraction_section(
+    bookindex_unordered_hashes,
+    obj_cite_number,
+    opt_action,
+  );
+destroy(bookindex_unordered_hashes);
+static assert(!isTypeTuple!(bi_tuple));
+auto the_bookindex_section = bi_tuple[0];
+obj_cite_number = bi_tuple[1];
+debug(bookindex) {
+  foreach (bi_entry; the_bookindex_section["seg"]) {
+    writeln(bi_entry);
+  }
+}
+#+END_SRC
+
+**** no blurb section?                                             :blurb:
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (an_object["blurb_nugget"].length == 0) {
+  comp_obj_heading_                       = comp_obj_heading_.init;
+  comp_obj_heading_.use                   = "empty";
+  comp_obj_heading_.is_of                 = "para";
+  comp_obj_heading_.is_a                  = "heading";
+  comp_obj_heading_.text                  = "(skip) there is no Blurb section";
+  comp_obj_heading_.ocn                   = 0;
+  comp_obj_para.obj_cite_number           = "";
+  comp_obj_heading_.segment_anchor_tag    = "";
+  comp_obj_heading_.marked_up_level       = "B";
+  comp_obj_heading_.heading_lev_markup    = 1;
+  comp_obj_heading_.heading_lev_collapsed = 1;
+  comp_obj_heading_.parent_ocn            = 1;
+  comp_obj_heading_.parent_lev_markup     = 0;
+  the_blurb_section                       ~= comp_obj_heading_;
+}
+debug(blurb) {
+  foreach (blurb; the_blurb_section) {
+    writeln(blurb.text);
+  }
+}
+#+END_SRC
+
+**** toc backmatter, table of contents backmatter (scroll & seg) :contents:
+
+#+name: abs_post
+#+BEGIN_SRC d
+indent=[
+  "hang_position" : 1,
+  "base_position" : 1,
+];
+comp_obj_toc                       = comp_obj_toc.init;
+comp_obj_toc.use                   = "frontmatter";
+comp_obj_toc.is_of                 = "para";
+comp_obj_toc.is_a                  = "toc";
+comp_obj_toc.ocn                   = 0;
+comp_obj_toc.obj_cite_number       = "";
+comp_obj_toc.indent_hang           = indent["hang_position"];
+comp_obj_toc.indent_base           = indent["base_position"];
+comp_obj_toc.bullet                = false;
+if (the_endnotes_section.length > 1) {
+  toc_txt_ = format(
+    "{ %s }%s%s%s",
+    "Endnotes",
+    mkup.mark_internal_site_lnk,
+    "endnotes",               // segment_anchor_tag_that_object_belongs_to
+    ".fnSuffix",
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["seg"]    ~= comp_obj_toc;
+}
+if (the_glossary_section.length > 1) {
+  toc_txt_ = format(
+    "{ %s }%s%s%s",
+    "Glossary",
+    mkup.mark_internal_site_lnk,
+    "glossary",               // segment_anchor_tag_that_object_belongs_to
+    ".fnSuffix",
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["seg"]    ~= comp_obj_toc;
+  toc_txt_ = format(
+    "{ %s }#%s",
+    "Glossary",
+    "glossary",               // _anchor_tag
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["scroll"] ~= comp_obj_toc;
+}
+if (the_bibliography_section.length > 1){
+  toc_txt_ = format(
+    "{ %s }%s%s%s",
+    "Bibliography",
+    mkup.mark_internal_site_lnk,
+    "bibliography",           // segment_anchor_tag_that_object_belongs_to
+    ".fnSuffix",
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["seg"]    ~= comp_obj_toc;
+
+  toc_txt_ = format(
+    "{ %s }#%s",
+    "Bibliography",
+    "bibliography",           // _anchor_tag
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["scroll"] ~= comp_obj_toc;
+}
+if (the_bookindex_section["seg"].length > 1) {
+  toc_txt_ = format(
+    "{ %s }%s%s%s",
+    "Book Index",
+    mkup.mark_internal_site_lnk,
+    "bookindex",              // segment_anchor_tag_that_object_belongs_to
+    ".fnSuffix",
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["seg"]    ~= comp_obj_toc;
+}
+if (the_bookindex_section["scroll"].length > 1) {
+  toc_txt_ = format(
+    "{ %s }#%s",
+    "Book Index",
+    "bookindex",              // _anchor_tag
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["scroll"] ~= comp_obj_toc;
+}
+if (the_blurb_section.length > 1) {
+  toc_txt_ = format(
+    "{ %s }%s%s%s",
+    "Blurb",
+    mkup.mark_internal_site_lnk,
+    "blurb",                  // segment_anchor_tag_that_object_belongs_to
+    ".fnSuffix",
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  comp_obj_toc.inline_links               = true;
+  the_table_of_contents_section["seg"]    ~= comp_obj_toc;
+  toc_txt_ = format(
+    "{ %s }#%s",
+    "Blurb",
+    "blurb",                  // _anchor_tag
+  );
+  toc_txt_= munge.url_links(toc_txt_);
+  comp_obj_toc.inline_links               = true;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
+  the_table_of_contents_section["scroll"] ~= comp_obj_toc;
+}
+debug(toc) {
+  writefln(
+    "%s %s",
+    __LINE__,
+    the_table_of_contents_section["seg"].length
+  );
+  foreach (toc_linked_heading; the_table_of_contents_section["seg"]) {
+    writeln(mkup.indent_by_spaces_provided(toc_linked_heading.indent_hang), toc_linked_heading.text);
+  }
+}
+debug(tocscroll) {
+  writefln(
+    "%s %s",
+    __LINE__,
+    the_table_of_contents_section["seg"].length
+  );
+  foreach (toc_linked_heading; the_table_of_contents_section["scroll"]) {
+    writeln(mkup.indent_by_spaces_provided(toc_linked_heading.indent_hang), toc_linked_heading.text);
+  }
+}
+#+END_SRC
+
+**** doc head (separate document head from body, make space for toc)
+
+#+name: abs_post
+#+BEGIN_SRC d
+the_document_head_section ~= the_document_body_section[0];
+the_document_body_section=the_document_body_section[1..$];
+#+END_SRC
+
+*** _post main-loop loops_                                           :post:
+**** 1. _loop backmatter:_ loop up to lev4, extract html_segnames, set pointers
+
+this extra loop is needed to determine pre and (in particular) next segment for
+html, that is then used in a subsequent loop
+
+NOTE there are issues attempting to do this on first pass as:
+  - backmatter is created out of sequence and
+  - it is not certain which are present
+
+  - it is quite neat to have all in one place as we have here
+
+  - could optimise a bit by
+    - skipping second (and third) loop unless the html seg or epub output is
+      selected
+
+***** section: endnotes
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (the_endnotes_section.length > 1) {
+  html_segnames ~= "endnotes";
+  html_segnames_ptr = html_segnames_ptr_cntr;
+  foreach (ref section; the_endnotes_section) {
+    if (section.heading_lev_markup == 4) {
+      section.ptr_html_segnames = html_segnames_ptr;
+      break;
+    }
+  }
+  html_segnames_ptr_cntr++;
+}
+#+END_SRC
+
+***** section: glossary
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (the_glossary_section.length > 1) {
+  html_segnames ~= "glossary";
+  html_segnames_ptr = html_segnames_ptr_cntr;
+  foreach (ref section; the_glossary_section) {
+    if (section.heading_lev_markup == 4) {
+      section.ptr_html_segnames = html_segnames_ptr;
+      break;
+    }
+  }
+  html_segnames_ptr_cntr++;
+}
+#+END_SRC
+
+***** section: bibliography
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (the_bibliography_section.length > 1) {
+  html_segnames ~= "bibliography";
+  html_segnames_ptr = html_segnames_ptr_cntr;
+  foreach (ref section; the_bibliography_section) {
+    if (section.heading_lev_markup == 4) {
+      section.ptr_html_segnames = html_segnames_ptr;
+      break;
+    }
+  }
+  html_segnames_ptr_cntr++;
+}
+#+END_SRC
+
+***** section: book index
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (the_bookindex_section["scroll"].length > 1) {
+  html_segnames ~= "bookindex";
+  html_segnames_ptr = html_segnames_ptr_cntr;
+  foreach (ref section; the_bookindex_section["scroll"]) {
+    if (section.heading_lev_markup == 4) {
+      section.ptr_html_segnames = html_segnames_ptr;
+      break;
+    }
+  }
+  foreach (ref section; the_bookindex_section["seg"]) {
+    if (section.heading_lev_markup == 4) {
+      section.ptr_html_segnames = html_segnames_ptr;
+      break;
+    }
+  }
+  html_segnames_ptr_cntr++;
+}
+#+END_SRC
+
+***** section: blurb
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (the_blurb_section.length > 1) {
+  html_segnames ~= "blurb";
+  html_segnames_ptr = html_segnames_ptr_cntr;
+  foreach (ref section; the_blurb_section) {
+    if (section.heading_lev_markup == 4) {
+      section.ptr_html_segnames = html_segnames_ptr;
+      break;
+    }
+  }
+  html_segnames_ptr_cntr++;
+}
+#+END_SRC
+
+**** 2. _loop all objects:_ encode _structural relationships_ (sections, segments, objects)
+
+needed for DOM structure, segnames & subtoc, backmatter pointers & unique image
+list
+
+if used minimally only for DOM structure, segnames, subtoc, could optimise by
+- skipping second and third pass unless the output html seg or epub is being
+  made!
+
+or could conveniently be used more extensively for ancestors as well (though
+this can be extracted earlier)
+
+Build here:
+- DOM structure
+- ancestors and decendants
+  - ancestors could be determined earlier, but convenient to have here
+  - descendants could be in the form of: headings contained under current
+    heading, and/or; the range of objects under the current heading
+- you could decide on a sequential object list, containing all objects (both
+  substantive and non-substantive objects), in addition to ocn, which are for
+  substantive/ citable objects within the document
+
+(as needed) up to document heading 1~, lev4 html:
+
+during the third pass all previous and next segment names are known
+next are not yet known for backmatter during the second pass
+
+***** images
+
+#+name: abs_post
+#+BEGIN_SRC d
+string[] _images;
+auto extract_images(S)(S content_block) {
+  string[] images_;
+  if (auto m = content_block.matchAll(rgx.image)) {
+    images_ ~= m.captures[1];
+  }
+  return images_;
+}
+string[] segnames_0_4;
+#+END_SRC
+
+***** section: head
+
+#+name: abs_post
+#+BEGIN_SRC d
+foreach (ref obj; the_document_head_section) {
+  if (obj.is_a == "heading") {
+    debug(dom) {
+      writeln(obj.text);
+    }
+    if (obj.heading_lev_markup <= 4) {
+      segnames_0_4 ~= obj.segment_anchor_tag;
+    }
+    /+ dom structure (marked up & collapsed) +/
+    if ((opt_action["html"])
+    || (opt_action["html-scroll"])
+    || (opt_action["html-seg"])
+    || (opt_action["epub"])
+    || (opt_action["sqlite"])
+    || (opt_action["postgresql"])) {
+      obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+      obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+    }
+    obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+  }
+}
+#+END_SRC
+
+***** section: toc
+
+#+name: abs_post
+#+BEGIN_SRC d
+if (the_table_of_contents_section["scroll"].length > 1) {
+  /+ scroll +/
+  dom_markedup_buffer = dom_markedup.dup;
+  dom_collapsed_buffer = dom_collapsed.dup;
+  foreach (ref obj; the_table_of_contents_section["scroll"]) {
+    if (obj.is_a == "heading") {
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+  /+ seg +/
+  dom_markedup = dom_markedup_buffer.dup;
+  dom_collapsed = dom_collapsed_buffer.dup;
+  foreach (ref obj; the_table_of_contents_section["seg"]) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+        writeln(obj.text);
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+}
+#+END_SRC
+
+***** section: document body
+
+#+name: abs_post
+#+BEGIN_SRC d
+/+ multiple 1~ levels, loop through document body +/
+if (the_document_body_section.length > 1) {
+  foreach (ref obj; the_document_body_section) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+        writeln(obj.text);
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.lev4_subtoc = lev4_subtoc[obj.segment_anchor_tag];
+          obj.segname_prev = html_segnames[obj.ptr_html_segnames - 1];
+          if (html_segnames.length > obj.ptr_html_segnames + 1) {
+            obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          }
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    } else if (obj.is_a == "para") {
+       _images ~= extract_images(obj.text);
+    }
+  }
+}
+auto images=uniq(_images.sort());
+#+END_SRC
+
+***** section: endnotes
+
+#+name: abs_post
+#+BEGIN_SRC d
+/+ optional only one 1~ level +/
+if (the_endnotes_section.length > 1) {
+  dom_markedup_buffer = dom_markedup.dup;
+  dom_collapsed_buffer = dom_collapsed.dup;
+  dom_markedup = dom_markedup_buffer.dup;
+  dom_collapsed = dom_collapsed_buffer.dup;
+  foreach (ref obj; the_endnotes_section) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+        writeln(obj.text);
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_prev = html_segnames[obj.ptr_html_segnames - 1];
+          if (html_segnames.length > obj.ptr_html_segnames + 1) {
+            obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          }
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+}
+#+END_SRC
+
+***** section: glossary
+
+#+name: abs_post
+#+BEGIN_SRC d
+/+ optional only one 1~ level +/
+if (the_glossary_section.length > 1) {
+  foreach (ref obj; the_glossary_section) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+        writeln(obj.text);
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_prev = html_segnames[obj.ptr_html_segnames - 1];
+          if (html_segnames.length > obj.ptr_html_segnames + 1) {
+            obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          }
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+}
+#+END_SRC
+
+***** section: bibliography
+
+#+name: abs_post
+#+BEGIN_SRC d
+/+ optional only one 1~ level +/
+if (the_bibliography_section.length > 1) {
+  foreach (ref obj; the_bibliography_section) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+        writeln(obj.text);
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_prev = html_segnames[obj.ptr_html_segnames - 1];
+          if (html_segnames.length > obj.ptr_html_segnames + 1) {
+            obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          }
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+}
+#+END_SRC
+
+***** section: book index (scroll, seg)
+
+#+name: abs_post
+#+BEGIN_SRC d
+/+ optional only one 1~ level +/
+if (the_bookindex_section["scroll"].length > 1) {
+  /+ scroll +/
+  dom_markedup_buffer = dom_markedup.dup;
+  dom_collapsed_buffer = dom_collapsed.dup;
+  foreach (ref obj; the_bookindex_section["scroll"]) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_prev = html_segnames[obj.ptr_html_segnames - 1];
+          if (html_segnames.length > obj.ptr_html_segnames + 1) {
+            obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          }
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+  /+ seg +/
+  dom_markedup = dom_markedup_buffer.dup;
+  dom_collapsed = dom_collapsed_buffer.dup;
+  foreach (ref obj; the_bookindex_section["seg"]) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+        writeln(obj.text);
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_prev = html_segnames[obj.ptr_html_segnames - 1];
+          if (html_segnames.length > obj.ptr_html_segnames + 1) {
+            obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          }
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+}
+#+END_SRC
+
+***** section: blurb
+
+#+name: abs_post
+#+BEGIN_SRC d
+/+ optional only one 1~ level +/
+if (the_blurb_section.length > 1) {
+  foreach (ref obj; the_blurb_section) {
+    if (obj.is_a == "heading") {
+      debug(dom) {
+        writeln(obj.text);
+      }
+      if (obj.heading_lev_markup <= 4) {
+        segnames_0_4 ~= obj.segment_anchor_tag;
+        if (obj.heading_lev_markup == 4) {
+          obj.segname_prev = html_segnames[obj.ptr_html_segnames - 1];
+          if (html_segnames.length > obj.ptr_html_segnames + 1) {
+            obj.segname_next = html_segnames[obj.ptr_html_segnames + 1];
+          }
+          assert(obj.segment_anchor_tag == html_segnames[obj.ptr_html_segnames]);
+        }
+      }
+      /+ dom structure (marked up & collapsed) +/
+      if ((opt_action["html"])
+      || (opt_action["html-scroll"])
+      || (opt_action["html-seg"])
+      || (opt_action["epub"])
+      || (opt_action["sqlite"])
+      || (opt_action["postgresql"])) {
+        obj = obj_dom_set_markup_tags(obj, dom_markedup, obj.heading_lev_markup);
+        obj = obj_dom_set_collapsed_tags(obj, dom_collapsed, obj.heading_lev_collapsed);
+      }
+      obj = obj_heading_ancestors(obj, lv_ancestors_txt);
+    }
+  }
+}
+#+END_SRC
+
+**** TODO update BUG?
+
+#+name: abs_post
+#+BEGIN_SRC d
+  /+ TODO
+    - note create/insert heading object sole purpose eof close all open tags
+      sort out:
+      - obj.dom_markedup = dom_markedup;
+      - obj.dom_collapsed = dom_collapsed;
+  +/
+comp_obj_heading_                       = comp_obj_heading_.init;
+comp_obj_heading_.use                   = "empty";
+comp_obj_heading_.is_of                 = "para";
+comp_obj_heading_.is_a                  = "heading";
+comp_obj_heading_.ocn                   = 0;
+comp_obj_para.obj_cite_number           = "";
+comp_obj_heading_.segment_anchor_tag    = "";
+comp_obj_heading_.marked_up_level       = "";
+comp_obj_heading_.heading_lev_markup    = 9;
+comp_obj_heading_.heading_lev_collapsed = 9;
+comp_obj_heading_.parent_ocn            = 0;
+comp_obj_heading_.parent_lev_markup     = 0;
+comp_obj_heading_.dom_markedup          = dom_markedup.dup;
+comp_obj_heading_.dom_collapsed         = dom_collapsed.dup;
+obj_dom_set_markup_tags(comp_obj_heading_, dom_markedup, 0);
+obj_dom_set_collapsed_tags(comp_obj_heading_, dom_collapsed, 0);
+obj_heading_ancestors(comp_obj_heading_, lv_ancestors_txt);
+comp_obj_heading_ = obj_dom_set_markup_tags(comp_obj_heading_, dom_markedup, 0);
+comp_obj_heading_ = obj_dom_set_collapsed_tags(comp_obj_heading_, dom_collapsed, 0);
+comp_obj_heading_ = obj_heading_ancestors(comp_obj_heading_, lv_ancestors_txt);
+the_dom_tail_section                    ~= comp_obj_heading_;
+#+END_SRC
+
+** 4. _return document tuple_                                           :post:
+*** _the document_                                                 :document:
+
+#+name: abs_post
+#+BEGIN_SRC d
+auto document_the = [
+  "head":             the_document_head_section,
+  "toc_seg":          the_table_of_contents_section["seg"],
+  "toc_scroll":       the_table_of_contents_section["scroll"],
+  /+ substantive/body: +/
+  "body":             the_document_body_section,
+  /+ backmatter: +/
+  "endnotes":         the_endnotes_section,
+  "glossary":         the_glossary_section,
+  "bibliography":     the_bibliography_section,
+  "bookindex_scroll": the_bookindex_section["scroll"],
+  "bookindex_seg":    the_bookindex_section["seg"],
+  "blurb":            the_blurb_section,
+  /+ dom tail only +/
+  "tail":             the_dom_tail_section,
+];
+#+END_SRC
+
+*** document _section keys_ sequence
+
+#+name: abs_post
+#+BEGIN_SRC d
+string[][string] document_section_keys_sequenced = [
+  "seg":    ["head", "toc_seg", "body",],
+  "scroll": ["head", "toc_scroll", "body",],
+  "sql":    ["head", "body",]
+];
+if (document_the["endnotes"].length > 1) {
+  document_section_keys_sequenced["seg"]    ~= "endnotes";
+  document_section_keys_sequenced["scroll"] ~= "endnotes";
+}
+if (document_the["glossary"].length > 1) {
+  document_section_keys_sequenced["seg"]    ~= "glossary";
+  document_section_keys_sequenced["scroll"] ~= "glossary";
+  document_section_keys_sequenced["sql"]    ~= "glossary";
+}
+if (document_the["bibliography"].length > 1) {
+  document_section_keys_sequenced["seg"]    ~= "bibliography";
+  document_section_keys_sequenced["scroll"] ~= "bibliography";
+  document_section_keys_sequenced["sql"]    ~= "bibliography";
+}
+if (document_the["bookindex_seg"].length > 1) {
+  document_section_keys_sequenced["seg"]    ~= "bookindex_seg";
+  document_section_keys_sequenced["sql"]    ~= "bookindex_seg";
+}
+if (document_the["bookindex_scroll"].length > 1) {
+  document_section_keys_sequenced["scroll"] ~= "bookindex_scroll";
+}
+if (document_the["blurb"].length > 1) {
+  document_section_keys_sequenced["seg"]    ~= "blurb";
+  document_section_keys_sequenced["scroll"] ~= "blurb";
+  document_section_keys_sequenced["sql"]    ~= "blurb";
+}
+if ((opt_action["html"])
+|| (opt_action["html-scroll"])
+|| (opt_action["html-seg"])
+|| (opt_action["epub"])) {
+  document_section_keys_sequenced["seg"]    ~= "tail";
+  document_section_keys_sequenced["scroll"] ~= "tail";
+}
+#+END_SRC
+
+*** dup
+
+#+name: abs_post
+#+BEGIN_SRC d
+auto segnames = html_segnames.dup;
+#+END_SRC
+
+*** clean out structure
+
+#+name: abs_post
+#+BEGIN_SRC d
+destroy(the_document_head_section);
+destroy(the_table_of_contents_section);
+destroy(the_document_body_section);
+destroy(the_endnotes_section);
+destroy(the_glossary_section);
+destroy(the_bibliography_section);
+destroy(the_bookindex_section);
+destroy(the_blurb_section);
+destroy(html_segnames);
+destroy(bookindex_unordered_hashes);
+destroy(an_object);
+biblio_arr_json = [];
+obj_cite_number=0;
+obj_cite_number_=0;
+html_segnames_ptr=0;
+html_segnames_ptr_cntr=0;
+content_non_header = "8";
+dom_markedup = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+dom_markedup_buffer = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+dom_collapsed = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+dom_collapsed_buffer = [ 0, 0, 0, 0, 0, 0, 0, 0, 0,];
+#+END_SRC
+
+*** [#A] _return document tuple_                               :return:tuple:
+
+#+name: abs_post
+#+BEGIN_SRC d
+auto t = tuple(
+  document_the,
+  docSectKeysSeq!()(document_section_keys_sequenced),
+  segnames,
+  segnames_0_4,
+  images,
+);
+return t;
+#+END_SRC
+
+** 5. Functions                                          :abstract:function:
+
+functions used in document abstraction
+
+*** set & resets                                                    :reset:
+**** object reset: remove (clean)                          :object:remove:
+
+#+name: abs_functions_object_reset
+#+BEGIN_SRC d
+auto object_reset(O)(ref O an_object) {
+  debug(asserts) {
+    static assert(is(typeof(an_object) == string[string]));
+  }
+  an_object.remove("body_nugget");
+  an_object.remove("substantive");
+  an_object.remove("is");
+  an_object.remove("attrib");
+  an_object.remove("bookindex_nugget");
+}
+#+END_SRC
+
+**** set, initialize or re-initialize                                :set:
+
+#+name: abs_functions_header_set_common
+#+BEGIN_SRC d
+auto _common_reset_(L,O,T)(
+  return ref L line_occur,
+  return ref O an_object,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line_occur) == int[string]));
+    static assert(is(typeof(an_object)  == string[string]));
+    static assert(is(typeof(type)       == int[string]));
+  }
+  line_occur["heading"] = State.off;
+  line_occur["para"]    = State.off;
+  type["heading"]       = State.off;
+  type["para"]          = State.off;
+  object_reset(an_object);
+}
+#+END_SRC
+
+*** check obj_cite_number status in document                          :ocn:
+
+#+name: abs_functions_ocn_status
+#+BEGIN_SRC d
+void _check_ocn_status_(L,T)(
+  L            line,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line) == char[]));
+    static assert(is(typeof(type) == int[string]));
+  }
+  auto rgx = Rgx();
+  if ((!line.empty) && (type["ocn_status_multi_obj"] == TriState.off)) {
+    /+ not multi-line object, check whether obj_cite_number is on or turned off +/
+    if (line.matchFirst(rgx.obj_cite_number_block_marks)) {
+      /+ switch off obj_cite_number +/
+      if (line.matchFirst(rgx.obj_cite_number_off_block)) {
+        type["ocn_status_multi_obj"] = TriState.on;
+        debug(ocnoff) {
+          writeln(line);
+        }
+      }
+      if (line.matchFirst(rgx.obj_cite_number_off_block_dh)) {
+        type["ocn_status_multi_obj"] = TriState.closing;
+        debug(ocnoff) {
+          writeln(line);
+        }
+      }
+    } else {
+      if (type["ocn_status_multi_obj"] == TriState.off) {
+        if (line.matchFirst(rgx.obj_cite_number_off)) {
+          type["ocn_status"] = TriState.on;
+        } else if (line.matchFirst(rgx.obj_cite_number_off_dh)) {
+          type["ocn_status"] = TriState.closing;
+        } else {
+          type["ocn_status"] = TriState.off;
+        }
+      } else {
+        type["ocn_status"] =
+          type["ocn_status_multi_obj"];
+      }
+    }
+  } else if ((!line.empty) && (type["ocn_status_multi_obj"] > TriState.off)) {
+    if (line.matchFirst(rgx.obj_cite_number_off_block_close)) {
+      type["ocn_status_multi_obj"] = TriState.off;
+      type["ocn_status"] = TriState.off;
+      debug(ocnoff) {
+        writeln(line);
+      }
+    }
+  }
+}
+#+END_SRC
+
+*** block                                                           :block:
+**** block start (open) block                                      :start:
+***** { block starts function
+
+#+name: abs_functions_block
+#+BEGIN_SRC d
+void _start_block_(L,T,N)(
+  L            line,
+  return ref T type,
+  N            obj_cite_number_poem
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)                 == char[]));
+    static assert(is(typeof(type)                 == int[string]));
+    static assert(is(typeof(obj_cite_number_poem) == string[string]));
+  }
+#+END_SRC
+
+***** block (various) curly open                                  :curly:
+
+#+name: abs_functions_block
+#+BEGIN_SRC d
+  auto rgx = Rgx();
+  string code_block_syntax = "";
+  bool code_block_numbered = false;
+  if (auto m = line.matchFirst(rgx.block_curly_code_open)) {
+    /+ curly code open +/
+    code_block_syntax = (m.captures[1]) ? m.captures[1].to!string : "";
+    code_block_numbered = (m.captures[2] == "#") ? true : false;
+    debug(code) {                              // code (curly) open
+      writefln(
+        "* [code curly] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["code"] = TriState.on;
+    type["curly_code"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_curly_poem_open)) {
+    /+ curly poem open +/
+    debug(poem) {                              // poem (curly) open
+      writefln(
+        "* [poem curly] %s",
+        line
+      );
+    }
+    obj_cite_number_poem["start"] =
+      obj_cite_number.to!string;
+    type["blocks"] = TriState.on;
+    type["verse_new"] = State.on;
+    type["poem"] = TriState.on;
+    type["curly_poem"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_curly_group_open)) {
+    /+ curly group open +/
+    debug(group) {                             // group (curly) open
+      writefln(
+        "* [group curly] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["group"] = TriState.on;
+    type["curly_group"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_curly_block_open)) {
+    /+ curly block open +/
+    debug(block) {                             // block (curly) open
+      writefln(
+        "* [block curly] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["block"] = TriState.on;
+    type["curly_block"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_curly_quote_open)) {
+    /+ curly quote open +/
+    debug(quote) {                             // quote (curly) open
+      writefln(
+        "* [quote curly] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["quote"] = TriState.on;
+    type["curly_quote"] = TriState.on;
+  } else if (auto m = line.matchFirst(rgx.block_curly_table_open)) {
+    /+ curly table open +/
+    debug(table) {                             // table (curly) open
+      writefln(
+        "* [table curly] %s",
+        line
+      );
+    }
+    an_object["table_head"]            = m.captures[1].to!string;
+    an_object["block_type"]            = "curly";
+    type["blocks"]                     = TriState.on;
+    type["table"]                      = TriState.on;
+    type["curly_table"]                = TriState.on;
+  } else if (auto m = line.matchFirst(rgx.block_curly_table_special_markup)) {
+    /+ table: special table block markup syntax! +/
+    an_object["table_head"]            = m.captures[1].to!string;
+    an_object["block_type"]            = "special";
+    type["blocks"]                     = TriState.on;
+    type["table"]                      = TriState.on;
+    type["curly_table_special_markup"] = TriState.on;
+#+END_SRC
+
+***** block (various) tic open                                      :tic:
+
+#+name: abs_functions_block
+#+BEGIN_SRC d
+  } else if (auto m = line.matchFirst(rgx.block_tic_code_open)) {
+    /+ tic code open +/
+    code_block_syntax = (m.captures[1]) ? m.captures[1].to!string : "";
+    code_block_numbered = (m.captures[2] == "#") ? true : false;
+    debug(code) {                              // code (tic) open
+      writefln(
+        "* [code tic] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["code"] = TriState.on;
+    type["tic_code"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_tic_poem_open)) {
+    /+ tic poem open +/
+    debug(poem) {                              // poem (tic) open
+      writefln(
+        "* [poem tic] %s",
+        line
+      );
+    }
+    obj_cite_number_poem["start"] = obj_cite_number.to!string;
+    type["blocks"] = TriState.on;
+    type["verse_new"] = State.on;
+    type["poem"] = TriState.on;
+    type["tic_poem"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_tic_group_open)) {
+    /+ tic group open +/
+    debug(group) {                             // group (tic) open
+      writefln(
+        "* [group tic] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["group"] = TriState.on;
+    type["tic_group"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_tic_block_open)) {
+    /+ tic block open +/
+    debug(block) {                             // block (tic) open
+      writefln(
+        "* [block tic] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["block"] = TriState.on;
+    type["tic_block"] = TriState.on;
+  } else if (line.matchFirst(rgx.block_tic_quote_open)) {
+    /+ tic quote open +/
+    debug(quote) {                             // quote (tic) open
+      writefln(
+        "* [quote tic] %s",
+        line
+      );
+    }
+    type["blocks"] = TriState.on;
+    type["quote"] = TriState.on;
+    type["tic_quote"] = TriState.on;
+  } else if (auto m = line.matchFirst(rgx.block_tic_table_open)) {
+    /+ tic table open +/
+    debug(table) {                             // table (tic) open
+      writefln(
+        "* [table tic] %s",
+        line
+      );
+    }
+    an_object["table_head"]            = m.captures[1].to!string;
+    an_object["block_type"]            = "tic";
+    type["blocks"]                     = TriState.on;
+    type["table"]                      = TriState.on;
+    type["tic_table"]                  = TriState.on;
+  }
+#+END_SRC
+
+***** }
+
+#+name: abs_functions_block
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+**** block continue (an open block)                             :continue:
+***** _code block_ (special status, deal with first)                 :code:
+
+#+name: abs_functions_block_code
+#+BEGIN_SRC d
+void _code_block_(L,O,T)(
+  return ref L line,
+  return ref O an_object,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)      == char[]));
+    static assert(is(typeof(an_object) == string[string]));
+    static assert(is(typeof(type)      == int[string]));
+  }
+  auto rgx = Rgx();
+  if (type["curly_code"] == TriState.on) {
+    if (line.matchFirst(rgx.block_curly_code_close)) {
+      debug(code) {                                    // code (curly) close
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key]
+        .replaceFirst(rgx.newline_eol_delimiter_only, "")
+        .stripRight;
+      type["blocks"] = TriState.closing;
+      type["code"] = TriState.closing;
+      type["curly_code"] = TriState.off;
+    } else {
+      debug(code) {                                    // code (curly) line
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";        // code (curly) line
+    }
+  } else if (type["tic_code"] == TriState.on) {
+    if (line.matchFirst(rgx.block_tic_close)) {
+      debug(code) {                                    // code (tic) close
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key]
+        .replaceFirst(rgx.newline_eol_delimiter_only, "")
+        .stripRight;
+      type["blocks"] = TriState.closing;
+      type["code"] = TriState.closing;
+      type["tic_code"] = TriState.off;
+    } else {
+      debug(code) {                                    // code (tic) line
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";        // code (tic) line
+    }
+  }
+}
+#+END_SRC
+
+***** biblio block                                               :biblio:
+****** biblio tag map
+
+#+name: abs_functions_block_biblio
+#+BEGIN_SRC d
+final string biblio_tag_map(A)(A abr) {
+  debug(asserts) {
+    static assert(is(typeof(abr) == string));
+  }
+  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];
+}
+#+END_SRC
+
+******* +consider+
+
+#+name: none
+#+BEGIN_SRC d
+final string biblio_tag_map_(A)(A abr) {
+  debug(asserts) {
+    static assert(is(typeof(abr) == string));
+  }
+  string name;
+  switch (abr) {
+  case "au":
+    name="author_raw";
+    break;
+  case "ed":
+    name="editor_raw";
+    break;
+  case "ti":
+    name="fulltitle";
+    break;
+  case "lng":
+    name="language";
+    break;
+  case "jo":
+    name="journal";
+    break;
+  case "vol":
+    name="volume";
+    break;
+  case "edn":
+    name="edition";
+    break;
+  case "yr":
+    name="year";
+    break;
+  case "pl":
+    name="place";
+    break;
+  case "pb":
+    name="publisher";
+    break;
+  case "pub":
+    name="publisher";
+    break;
+  case "pg":
+    name="pages";
+    break;
+  case "pgs":
+    name="pages";
+    break;
+  case "sn":
+    name="short_name";
+    break;
+  default:
+    name=abr;
+    break;
+  }
+  return name;
+}
+#+END_SRC
+
+****** biblio block
+
+#+name: abs_functions_block_biblio
+#+BEGIN_SRC d
+void _biblio_block_(
+  char[]                 line,
+  return ref int[string] type,
+  return ref int         bib_entry,
+  return ref string      biblio_entry_str_json,
+  return ref string[]    biblio_arr_json
+) {
+  mixin SiSUbiblio;
+  auto jsn = BibJsnStr();
+  auto rgx = Rgx();
+  if (line.matchFirst(rgx.heading_biblio)) {
+    type["biblio_section"] = TriState.on;
+    type["blurb_section"] = State.off;
+    type["glossary_section"] = State.off;
+  }
+  if (line.empty) {
+    debug {
+      debug(biblioblock) {
+        writeln("---");
+      }
+      debug(biblioblockinclude) {
+        writeln(biblio_entry_str_json.length);
+      }
+    }
+    if ((bib_entry == State.off)
+    && (biblio_entry_str_json.empty)) {
+      bib_entry = State.on;
+      biblio_entry_str_json = jsn.biblio_entry_tags_jsonstr;
+    } else if (!(biblio_entry_str_json.empty)) {
+      bib_entry = State.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 { // CHECK ERROR
+      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 = State.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="";
+  }
+}
+#+END_SRC
+
+***** quote block                                                 :quote:
+
+#+name: abs_functions_block_quote
+#+BEGIN_SRC d
+void _quote_block_(L,O,T)(
+  return ref L line,
+  return ref O an_object,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)      == char[]));
+    static assert(is(typeof(an_object) == string[string]));
+    static assert(is(typeof(type)      == int[string]));
+  }
+  auto rgx = Rgx();
+  if (type["curly_quote"] == TriState.on) {
+    if (line.matchFirst(rgx.block_curly_quote_close)) {
+      debug(quote) {                              // quote (curly) close
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key].stripRight;
+      type["blocks"]      = TriState.closing;
+      type["quote"]       = TriState.closing;
+      type["curly_quote"] = TriState.off;
+    } else {
+      debug(quote) {
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";   // build quote array (or string)
+    }
+  } else if (type["tic_quote"] == TriState.on) {
+    if (line.matchFirst(rgx.block_tic_close)) {
+      debug(quote) {                              // quote (tic) close
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key].stripRight;
+      type["blocks"]    = TriState.closing;
+      type["quote"]     = TriState.closing;
+      type["tic_quote"] = TriState.off;
+    } else {
+      debug(quote) {
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";   // build quote array (or string)
+    }
+  }
+}
+#+END_SRC
+
+***** group block                                                 :group:
+
+- apply inline markup
+- discard leading and newline whitespace
+
+#+name: abs_functions_block_group
+#+BEGIN_SRC d
+void _group_block_(L,O,T)(
+  return ref L line,
+  return ref O an_object,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)      == char[]));
+    static assert(is(typeof(an_object) == string[string]));
+    static assert(is(typeof(type)      == int[string]));
+  }
+  auto rgx = Rgx();
+  if (type["curly_group"] == State.on) {
+    if (line.matchFirst(rgx.block_curly_group_close)) {
+      debug(group) {
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key].stripRight;
+      type["blocks"]      = TriState.closing;
+      type["group"]       = TriState.closing;
+      type["curly_group"] = TriState.off;
+    } else {
+      debug(group) {
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";   // build group array (or string)
+    }
+  } else if (type["tic_group"] == TriState.on) {
+    if (line.matchFirst(rgx.block_tic_close)) {
+      debug(group) {
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key].stripRight;
+      type["blocks"]    = TriState.closing;
+      type["group"]     = TriState.closing;
+      type["tic_group"] = TriState.off;
+    } else {
+      debug(group) {                              // group
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";   // build group array (or string)
+    }
+  }
+}
+#+END_SRC
+
+***** block block                                                 :block:
+
+- apply inline markup
+- keep whitespace indentation
+- keep newlines
+
+#+name: abs_functions_block_block
+#+BEGIN_SRC d
+void _block_block_(L,O,T)(
+  return ref L line,
+  return ref O an_object,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)      == char[]));
+    static assert(is(typeof(an_object) == string[string]));
+    static assert(is(typeof(type)      == int[string]));
+  }
+  auto rgx = Rgx();
+  if (type["curly_block"] == TriState.on) {
+    if (line.matchFirst(rgx.block_curly_block_close)) {
+      debug(block) {                             // block (curly) close
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key].stripRight;
+      type["blocks"]      = TriState.closing;
+      type["block"]       = TriState.closing;
+      type["curly_block"] = TriState.off;
+    } else {
+      debug(block) {
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";   // build block array (or string)
+    }
+  } else if (type["tic_block"] == TriState.on) {
+    if (line.matchFirst(rgx.block_tic_close)) {
+      debug(block) {
+        writeln(line);
+      }
+      an_object[an_object_key] = an_object[an_object_key].stripRight;
+      type["blocks"]    = TriState.closing;
+      type["block"]     = TriState.closing;
+      type["tic_block"] = TriState.off;
+    } else {
+      debug(block) {
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";   // build block array (or string)
+    }
+  }
+}
+#+END_SRC
+
+***** poem block, verse objects                              :poem:verse:
+
+why extra object stuff only in poem/verse?
+
+#+name: abs_functions_block_poem
+#+BEGIN_SRC d
+void _poem_block_(L,O,T,C,N,Ma)(
+  L     line,
+  return ref O an_object,
+  return ref T type,
+  return ref C cntr,
+  N            obj_cite_number_poem,
+  Ma           dochead_make_aa,
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)                 == char[]));
+    static assert(is(typeof(an_object)            == string[string]));
+    static assert(is(typeof(type)                 == int[string]));
+    static assert(is(typeof(cntr)                 == int));
+    static assert(is(typeof(obj_cite_number_poem) == string[string]));
+    static assert(is(typeof(dochead_make_aa)      == string[string][string]));
+  }
+  auto rgx = Rgx();
+  if (type["curly_poem"] == TriState.on) {
+    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) {                               // poem (curly) close
+          writefln(
+            "* [poem curly] %s",
+            line
+          );
+        }
+        if (processing.length > 0) {
+          an_object[an_object_key] = processing["verse"];
+        }
+        debug(poem) {                               // poem (curly) close
+          writeln(__LINE__);
+          writefln(
+            "* %s %s",
+            obj_cite_number,
+            line
+          );
+        }
+        if (an_object.length > 0) {
+          debug(poem) {                             // poem (curly) close
+            writeln(
+              obj_cite_number,
+              an_object[an_object_key]
+            );
+          }
+          an_object["is"]                           = "verse";
+          auto substantive_obj_misc_tuple =
+            obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+          an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+          anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+          comp_obj_block                            = comp_obj_block.init;
+          comp_obj_block.use                        = "body";
+          comp_obj_block.is_of                      = "block";
+          comp_obj_block.is_a                       = "verse";
+          comp_obj_block.ocn                        = obj_cite_number;
+          comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+          comp_obj_block.text                       = an_object["substantive"];
+          comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
+          comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
+          comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
+          the_document_body_section                 ~= comp_obj_block;
+        }
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      }
+      obj_cite_number_poem["end"] =
+        obj_cite_number.to!string;
+      type["blocks"] = TriState.closing;
+      type["poem"] = TriState.closing;
+      type["curly_poem"] = TriState.off;
+    } else {
+      processing["verse"] ~= line ~= "\n";
+      if (type["verse_new"] == State.on) {
+        obj_cite_number =
+          ocn_emit(type["ocn_status"]);
+        type["verse_new"] = State.off;
+      } else if (line.matchFirst(rgx.newline_eol_delimiter_only)) {
+        processing["verse"] = processing["verse"].stripRight;
+        verse_line = TriState.off;
+        type["verse_new"] = State.on;
+      }
+      if (type["verse_new"] == State.on) {
+        verse_line=1;
+        an_object[an_object_key] = processing["verse"];
+        debug(poem) {                          // poem verse
+          writefln(
+            "* %s curly\n%s",
+            obj_cite_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,
+          segment_anchor_tag_that_object_belongs_to,
+          obj_cite_number,
+          cntr,
+          heading_ptr-1,
+          an_object["is"]
+        );
+        auto substantive_obj_misc_tuple =
+          obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+        an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+        anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+        comp_obj_block                            = comp_obj_block.init;
+        comp_obj_block.use                        = "body";
+        comp_obj_block.is_of                      = "block";
+        comp_obj_block.is_a                       = "verse";
+        comp_obj_block.ocn                        = obj_cite_number;
+        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+        comp_obj_block.text                       = an_object["substantive"];
+        comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
+        comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
+        comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
+        the_document_body_section                 ~= comp_obj_block;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      }
+    }
+  } else if (type["tic_poem"] == TriState.on) {
+    if (auto m = line.matchFirst(rgx.block_tic_close)) { // tic_poem_close
+      an_object[an_object_key]="verse";
+      debug(poem) {                                       // poem (curly) close
+        writefln(
+          "* [poem tic] %s",
+          line
+        );
+      }
+      if (processing.length > 0) {
+        an_object[an_object_key] = processing["verse"];
+      }
+      if (an_object.length > 0) {
+        debug(poem) {                                     // poem (tic) close
+          writeln(__LINE__);
+          writeln(obj_cite_number, line);
+        }
+        processing.remove("verse");
+        an_object["is"]                           = "verse";
+        auto substantive_obj_misc_tuple =
+          obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+        an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+        anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+        comp_obj_block                            = comp_obj_block.init;
+        comp_obj_block.use                        = "body";
+        comp_obj_block.is_of                      = "block";
+        comp_obj_block.is_a                       = "verse";
+        comp_obj_block.ocn                        = obj_cite_number;
+        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+        comp_obj_block.text                       = an_object["substantive"];
+        comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
+        comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
+        comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
+        the_document_body_section                 ~= comp_obj_block;
+        obj_cite_number_poem["end"]               = obj_cite_number.to!string;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      }
+      type["blocks"] = TriState.closing;
+      type["poem"] = TriState.closing;
+      type["tic_poem"] = TriState.off;
+    } else {
+      processing["verse"] ~= line ~= "\n";
+      if (type["verse_new"] == State.on) {
+        obj_cite_number =
+          ocn_emit(type["ocn_status"]);
+        type["verse_new"] = State.off;
+      } else if (line.matchFirst(rgx.newline_eol_delimiter_only)) {
+        processing["verse"] = processing["verse"].stripRight;
+        type["verse_new"] = State.on;
+        verse_line = TriState.off;
+      }
+      if (type["verse_new"] == State.on) {
+        verse_line=1;
+        an_object[an_object_key] = processing["verse"];
+        debug(poem) {                            // poem (tic) close
+          writefln(
+            "* %s tic\n%s",
+            obj_cite_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,
+            segment_anchor_tag_that_object_belongs_to,
+            obj_cite_number,
+            cntr,
+            heading_ptr-1,
+            an_object["is"]
+          );
+        auto substantive_obj_misc_tuple =
+          obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+        an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+        anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+        comp_obj_block                            = comp_obj_block.init;
+        comp_obj_block.use                        = "body";
+        comp_obj_block.is_of                      = "block";
+        comp_obj_block.is_a                       = "verse";
+        comp_obj_block.ocn                        = obj_cite_number;
+        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+        comp_obj_block.text                       = an_object["substantive"];
+        comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
+        comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
+        comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
+        the_document_body_section                 ~= comp_obj_block;
+        object_reset(an_object);
+        processing.remove("verse");
+        ++cntr;
+      }
+    }
+  }
+}
+#+END_SRC
+
+***** table block                                                 :table:
+
+there are 3 types of table markup that need to be nomalized (given a single representation) here
+
+- curly brace block
+- tic block
+- special notation block
+
+you need:
+- identify the type for the munging to create uniform presentation
+  - curly, tick, special
+  - table heading row, bool
+- present table header info in uniform way
+  - table_number_of_columns, int (count)
+  - table_column_widths, int[] column widths (as given or calculate average)
+  - show table walls, bool
+- table content marked up in uniform way
+
+#+name: abs_functions_block_table
+#+BEGIN_SRC d
+void _table_block_(L,O,T,Ma)(
+  return ref L line,
+  return ref O an_object,
+  return ref T type,
+  return ref Ma dochead_make_aa
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)      == char[]));
+    static assert(is(typeof(an_object) == string[string]));
+    static assert(is(typeof(type)      == int[string]));
+  }
+  auto rgx = Rgx();
+  if (type["curly_table"] == TriState.on) {
+    if (line.matchFirst(rgx.block_curly_table_close)) {
+      debug(table) {                           // table (curly) close
+        writeln(line);
+      }
+      type["blocks"] = TriState.closing;
+      type["table"] = TriState.closing;
+      type["curly_table"] = TriState.off;
+    } else {
+      debug(table) {                           // table
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";           // build table array (or string)
+    }
+  } else if (type["curly_table_special_markup"] == TriState.on) {
+    if (line.empty) {
+      type["blocks"]                     = TriState.off;
+      type["table"]                      = TriState.off;
+      type["curly_table_special_markup"] = TriState.off;
+      _table_closed_make_special_notation_table_(
+        line,
+        an_object,
+        the_document_body_section,
+        obj_cite_number,
+        comp_obj_heading,
+        cntr,
+        type,
+        dochead_make_aa
+      );
+    } else {
+      debug(table) {
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";
+    }
+  } else if (type["tic_table"] == TriState.on) {
+    if (line.matchFirst(rgx.block_tic_close)) {
+      debug(table) {                           // table (tic) close
+        writeln(line);
+      }
+      type["blocks"] = TriState.closing;
+      type["table"] = TriState.closing;
+      type["tic_table"] = TriState.off;
+    } else {
+      debug(table) {                           // table
+        writeln(line);
+      }
+      an_object[an_object_key] ~= line ~= "\n";           // build table array (or string)
+    }
+  }
+}
+#+END_SRC
+
+**** special table notation, make: table
+
+process and use an_object["table_head"] (then empty it)
+- present table header info in uniform way
+  - table_number_of_columns, int (count)
+  - table_column_widths, int[] column widths (as given or calculate average)
+  - show table walls, bool
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+void _table_closed_make_special_notation_table_(
+  char[]                           line,
+  return ref string[string]        an_object,
+  return ref ObjGenericComposite[] the_document_body_section,
+  return ref int                   obj_cite_number,
+  return ref ObjGenericComposite   _comp_obj_heading,
+  return ref int                   cntr,
+  return ref int[string]           type,
+  string[string][string]           dochead_make_aa,
+) {
+    comp_obj_block = comp_obj_block.init;
+    obj_cite_number =
+      ocn_emit(type["ocn_status"]);
+    auto comp_obj_location =
+      node_construct.node_location_emitter(
+        content_non_header,
+        segment_anchor_tag_that_object_belongs_to,
+        obj_cite_number,
+        cntr,
+        heading_ptr-1,
+        "table"
+      );
+    an_object["is"] = "table";
+    auto substantive_obj_misc_tuple =
+      obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, "body_nugget", dochead_make_aa);
+    an_object["substantive"]         = substantive_obj_misc_tuple[sObj.content];
+    comp_obj_block.ocn               = obj_cite_number;
+    comp_obj_block.obj_cite_number   = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    comp_obj_block                   = table_instructions(comp_obj_block, an_object["table_head"]);
+    comp_obj_block                   = table_substantive_munge_special(comp_obj_block, an_object["substantive"]);
+    the_document_body_section        ~= comp_obj_block;
+    object_reset(an_object);
+    processing.remove("verse");
+    ++cntr;
+}
+#+END_SRC
+
+**** block end (close an open block): line empty, block flag _makes_ :close:
+
+***** { line empty, _make block_
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+void _block_flag_line_empty_(B)(
+  B                                   bookindex_extract_hash,
+  char[]                              line,
+  return ref string[string]           an_object,
+  return ref ObjGenericComposite[]    the_document_body_section,
+  return ref string[][string][string] bookindex_unordered_hashes,
+  return ref int                      obj_cite_number,
+  return ref ObjGenericComposite      _comp_obj_heading,
+  return ref int                      cntr,
+  return ref int[string]              type,
+  string[string]                      obj_cite_number_poem,
+  string[string][string]              dochead_make_aa,
+) {
+  assert(
+    line.empty,
+    "\nline should be empty:\n  \""
+    ~ line ~ "\""
+  );
+  assert(
+    (type["blocks"] == TriState.closing),
+    "code block status: closed"
+  );
+  assertions_flag_types_block_status_none_or_closed(type);
+#+END_SRC
+
+***** make: quote block
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+  if (type["quote"] == TriState.closing) {
+    obj_cite_number =
+      ocn_emit(type["ocn_status"]);
+    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_number,
+        segment_anchor_tag_that_object_belongs_to
+      );
+    an_object["is"] = "quote";
+    auto comp_obj_location =
+      node_construct.node_location_emitter(
+        content_non_header,
+        segment_anchor_tag_that_object_belongs_to,
+        obj_cite_number,
+        cntr,
+        heading_ptr-1,
+        an_object["is"]
+      );
+    auto substantive_obj_misc_tuple =
+      obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+    an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+    anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+    comp_obj_block                            = comp_obj_block.init;
+    comp_obj_block.use                        = "body";
+    comp_obj_block.is_of                      = "block";
+    comp_obj_block.is_a                       = "quote";
+    comp_obj_block.ocn                        = obj_cite_number;
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    comp_obj_block.text                       = an_object["substantive"];
+    comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
+    comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
+    comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
+    the_document_body_section                 ~= comp_obj_block;
+    type["blocks"]                            = TriState.off;
+    type["quote"]                             = TriState.off;
+    object_reset(an_object);
+    processing.remove("verse");
+    ++cntr;
+#+END_SRC
+
+***** make: group block
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+  } else if (type["group"] == TriState.closing) {
+    obj_cite_number =
+      ocn_emit(type["ocn_status"]);
+    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_number,
+        segment_anchor_tag_that_object_belongs_to
+      );
+    an_object["is"] = "group";
+    auto comp_obj_location =
+      node_construct.node_location_emitter(
+        content_non_header,
+        segment_anchor_tag_that_object_belongs_to,
+        obj_cite_number,
+        cntr,
+        heading_ptr-1,
+        an_object["is"]
+      );
+    auto substantive_obj_misc_tuple =
+      obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+    an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+    anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+    comp_obj_block                            = comp_obj_block.init;
+    comp_obj_block.use                        = "body";
+    comp_obj_block.is_of                      = "block";
+    comp_obj_block.is_a                       = "group";
+    comp_obj_block.ocn                        = obj_cite_number;
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    comp_obj_block.text                       = an_object["substantive"];
+    comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
+    comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
+    comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
+    the_document_body_section                 ~= comp_obj_block;
+    type["blocks"]                            = TriState.off;
+    type["group"]                             = TriState.off;
+    object_reset(an_object);
+    processing.remove("verse");
+    ++cntr;
+#+END_SRC
+
+***** make: block
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+  } else if (type["block"] == TriState.closing) {
+    obj_cite_number = ocn_emit(type["ocn_status"]);
+    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_number,
+        segment_anchor_tag_that_object_belongs_to
+      );
+    an_object["is"] = "block";
+    auto comp_obj_location =
+      node_construct.node_location_emitter(
+        content_non_header,
+        segment_anchor_tag_that_object_belongs_to,
+        obj_cite_number,
+        cntr,
+        heading_ptr-1,
+        an_object["is"]
+      );
+    auto substantive_obj_misc_tuple =
+      obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+    an_object["substantive"]                  = substantive_obj_misc_tuple[sObj.content];
+    comp_obj_block                            = comp_obj_block.init;
+    comp_obj_block.use                        = "body";
+    comp_obj_block.is_of                      = "block";
+    comp_obj_block.is_a                       = "block";
+    comp_obj_block.ocn                        = obj_cite_number;
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    comp_obj_block.text                       = an_object["substantive"];
+    comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
+    comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
+    comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
+    the_document_body_section                 ~= comp_obj_block;
+    type["blocks"]                            = TriState.off;
+    type["block"]                             = TriState.off;
+    object_reset(an_object);
+    processing.remove("verse");
+    ++cntr;
+#+END_SRC
+
+***** make: poem
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+  } else if (type["poem"] == TriState.closing) {
+    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_number,
+        segment_anchor_tag_that_object_belongs_to
+      );
+    an_object["is"]                           = "verse";
+    auto comp_obj_location =
+      node_construct.node_location_emitter(
+        content_non_header,
+        segment_anchor_tag_that_object_belongs_to,
+        obj_cite_number,
+        cntr,
+        heading_ptr-1,
+        an_object["is"]
+      );
+    comp_obj_poem_ocn                         = comp_obj_poem_ocn.init;
+    comp_obj_poem_ocn.use                     = "body";
+    comp_obj_poem_ocn.is_of                   = "block";
+    comp_obj_poem_ocn.is_a                    = "poem";
+    comp_obj_poem_ocn.ocn                     = obj_cite_number;
+    comp_obj_poem_ocn.obj_cite_number         = (obj_cite_number_poem["start"], obj_cite_number_poem["end"]);
+    comp_obj_poem_ocn.text                    = "";
+    the_document_body_section                 ~= comp_obj_poem_ocn;
+    type["blocks"]                            = TriState.off;
+    type["poem"]                              = TriState.off;
+    object_reset(an_object);
+    processing.remove("verse");
+#+END_SRC
+
+***** make: code block
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+  } else if (type["code"] == TriState.closing) {
+    obj_cite_number =
+      ocn_emit(type["ocn_status"]);
+    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_number,
+        segment_anchor_tag_that_object_belongs_to
+      );
+    an_object["is"] = "code";
+    auto comp_obj_location =
+      node_construct.node_location_emitter(
+        content_non_header,
+        segment_anchor_tag_that_object_belongs_to,
+        obj_cite_number,
+        cntr,
+        heading_ptr-1,
+        an_object["is"]
+      );
+    auto substantive_obj_misc_tuple =
+      obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+    an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+    anchor_tags = substantive_obj_misc_tuple[sObj.anchor_tags];
+    comp_obj_code                             = comp_obj_code.init;
+    comp_obj_code.use                         = "body";
+    comp_obj_code.is_of                       = "block";
+    comp_obj_code.is_a                        = "code";
+    comp_obj_code.ocn                         = obj_cite_number;
+    comp_obj_code.obj_cite_number             = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    comp_obj_code.text                        = an_object["substantive"];
+    comp_obj_code.inline_notes_reg            = substantive_obj_misc_tuple[sObj.notes_reg];
+    comp_obj_code.inline_notes_star           = substantive_obj_misc_tuple[sObj.notes_star];
+    comp_obj_code.inline_links                = substantive_obj_misc_tuple[sObj.links];
+    the_document_body_section                 ~= comp_obj_code;
+    type["blocks"]                            = TriState.off;
+    type["code"]                              = TriState.off;
+    object_reset(an_object);
+    processing.remove("verse");
+    ++cntr;
+#+END_SRC
+
+***** make: table
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+  } else if (type["table"] == TriState.closing) {
+    comp_obj_block = comp_obj_block.init;
+    obj_cite_number =
+      ocn_emit(type["ocn_status"]);
+    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_number,
+        segment_anchor_tag_that_object_belongs_to
+      );
+    an_object["is"] = "table";
+    auto comp_obj_location =
+      node_construct.node_location_emitter(
+        content_non_header,
+        segment_anchor_tag_that_object_belongs_to,
+        obj_cite_number,
+        cntr,
+        heading_ptr-1,
+        an_object["is"]
+      );
+    auto substantive_obj_misc_tuple =
+      obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
+    an_object["substantive"] = substantive_obj_misc_tuple[sObj.content];
+    comp_obj_block                            = comp_obj_block.init;
+    comp_obj_block.ocn                        = obj_cite_number;
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    comp_obj_block = table_instructions(comp_obj_block, an_object["table_head"]);
+    comp_obj_block = table_substantive_munge(comp_obj_block, an_object["substantive"]);
+    the_document_body_section                 ~= comp_obj_block;
+    type["blocks"]                            = TriState.off;
+    type["table"]                             = TriState.off;
+    object_reset(an_object);
+    processing.remove("verse");
+    ++cntr;
+  }
+#+END_SRC
+
+***** }
+
+#+name: abs_functions_block_line_status_empty
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+*** book index                                                  :bookindex:
+
+#+name: abs_functions_book_index
+#+BEGIN_SRC d
+auto _book_index_(L,I,O,T,B)(
+  L      line,
+  return ref I  book_idx_tmp,
+  return ref O  an_object,
+  return ref T  type,
+  B             opt_action,
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)            == char[]));
+    static assert(is(typeof(book_idx_tmp)    == string));
+    static assert(is(typeof(an_object)       == string[string]));
+    static assert(is(typeof(type)            == int[string]));
+    static assert(is(typeof(opt_action)      == bool[string]));
+  }
+  auto rgx = Rgx();
+  if (auto m = line.match(rgx.book_index)) {
+    /+ match book_index +/
+    debug(bookindexmatch) {                       // book index
+      writefln(
+        "* [bookindex] %s\n",
+        m.captures[1].to!string,
+      );
+    }
+    an_object["bookindex_nugget"] = m.captures[1].to!string;
+  } else if (auto m = line.match(rgx.book_index_open))  {
+    /+ match open book_index +/
+    type["book_index"] = State.on;
+    if (opt_action["backmatter"] && opt_action["section_bookindex"]) {
+      book_idx_tmp = m.captures[1].to!string;
+      debug(bookindexmatch) {                       // book index
+        writefln(
+          "* [bookindex] %s\n",
+          book_idx_tmp,
+        );
+      }
+    }
+  } else if (type["book_index"] == State.on )  {
+    /+ book_index flag set +/
+    if (auto m = line.match(rgx.book_index_close))  {
+      type["book_index"] = State.off;
+      if (opt_action["backmatter"]
+      && opt_action["section_bookindex"]) {
+        an_object["bookindex_nugget"] = book_idx_tmp ~ m.captures[1].to!string;
+        debug(bookindexmatch) {                     // book index
+          writefln(
+            "* [bookindex] %s\n",
+            book_idx_tmp,
+          );
+        }
+      }
+      book_idx_tmp = "";
+    } else {
+      if (opt_action["backmatter"]
+      && opt_action["section_bookindex"]) {
+        book_idx_tmp ~= line;
+      }
+    }
+  }
+}
+#+END_SRC
+
+*** heading or paragraph                                :heading:paragraph:
+**** heading found                                               :heading:
+
+#+name: abs_functions_heading
+#+BEGIN_SRC d
+auto _heading_found_(L,X,H,R,T)(
+  L     line,
+  X     dochead_make_identify_unmarked_headings,
+  return ref H heading_match_str,
+  return ref R heading_match_rgx,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)                                    == char[]));
+    static assert(is(typeof(dochead_make_identify_unmarked_headings) == string));
+    static assert(is(typeof(heading_match_str)                       == string[string]));
+    static assert(is(typeof(heading_match_rgx)                       == Regex!(char)[string]));
+    static assert(is(typeof(type)                                    == int[string]));
+  }
+  auto rgx = Rgx();
+  if ((dochead_make_identify_unmarked_headings.length > 2)
+  && (type["make_headings"] == State.off)) {
+    /+ headings found +/
+    debug(headingsfound) {
+      writeln(dochead_make_identify_unmarked_headings);
+    }
+    char[][] make_headings_spl =
+      (cast(char[]) dochead_make_identify_unmarked_headings)
+        .split(rgx.make_heading_delimiter);
+    debug(headingsfound) {
+      writeln(make_headings_spl.length);
+      writeln(make_headings_spl);
+    }
+    switch (make_headings_spl.length) {
+    case 7 :
+      if (!empty(make_headings_spl[6])) {
+        heading_match_str["h_4"] =
+          "^(" ~ make_headings_spl[6].to!string ~ ")";
+        heading_match_rgx["h_4"] =
+          regex(heading_match_str["h_4"]);
+      }
+      goto case;
+    case 6 :
+      if (!empty(make_headings_spl[5])) {
+        heading_match_str["h_3"] =
+          "^(" ~ make_headings_spl[5].to!string ~ ")";
+        heading_match_rgx["h_3"] =
+          regex(heading_match_str["h_3"]);
+      }
+      goto case;
+    case 5 :
+      if (!empty(make_headings_spl[4])) {
+        heading_match_str["h_2"] =
+          "^(" ~ make_headings_spl[4].to!string ~ ")";
+        heading_match_rgx["h_2"] =
+          regex(heading_match_str["h_2"]);
+      }
+      goto case;
+    case 4 :
+      if (!empty(make_headings_spl[3])) {
+        heading_match_str["h_1"] =
+          "^(" ~ make_headings_spl[3].to!string ~ ")";
+        heading_match_rgx["h_1"] =
+          regex(heading_match_str["h_1"]);
+      }
+      goto case;
+    case 3 :
+      if (!empty(make_headings_spl[2])) {
+        heading_match_str["h_D"] =
+          "^(" ~ make_headings_spl[2].to!string ~ ")";
+        heading_match_rgx["h_D"] =
+          regex(heading_match_str["h_D"]);
+      }
+      goto case;
+    case 2 :
+      if (!empty(make_headings_spl[1])) {
+        heading_match_str["h_C"] =
+          "^(" ~ make_headings_spl[1].to!string ~ ")";
+        heading_match_rgx["h_C"] =
+          regex(heading_match_str["h_C"]);
+      }
+      goto case;
+    case 1 :
+      if (!empty(make_headings_spl[0])) {
+        heading_match_str["h_B"] =
+          "^(" ~ make_headings_spl[0].to!string ~ ")";
+        heading_match_rgx["h_B"] =
+          regex(heading_match_str["h_B"]);
+      }
+      break;
+    default:
+      break;
+    }
+    type["make_headings"] = State.on;
+  }
+}
+#+END_SRC
+
+**** heading make set                                            :heading:
+
+#+name: abs_functions_heading
+#+BEGIN_SRC d
+auto _heading_make_set_(L,C,R,T)(
+  L     line,
+  C     line_occur,
+  return ref R heading_match_rgx,
+  return ref T type
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)              == char[]));
+    static assert(is(typeof(line_occur)        == int[string]));
+    static assert(is(typeof(heading_match_rgx) == Regex!(char)[string]));
+    static assert(is(typeof(type)              == int[string]));
+  }
+  if ((type["make_headings"] == State.on)
+  && ((line_occur["para"] == State.off)
+  && (line_occur["heading"] == State.off))
+  && ((type["para"] == State.off)
+  && (type["heading"] == State.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);
+      }
+    }
+  }
+  return line;
+}
+#+END_SRC
+
+**** heading match                                               :heading:
+
+#+name: abs_functions_heading
+#+BEGIN_SRC d
+auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
+  return ref L  line,
+  return ref C  line_occur,
+  return ref O  an_object,
+  return ref K  an_object_key,
+  return ref Lv lv,
+  return ref Lc collapsed_lev,
+  return ref T  type,
+  return ref Me dochead_meta_aa,
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)            == char[]));
+    static assert(is(typeof(line_occur)      == int[string]));
+    static assert(is(typeof(an_object)       == string[string]));
+    static assert(is(typeof(an_object_key)   == string));
+    static assert(is(typeof(lv)              == int[string]));
+    static assert(is(typeof(collapsed_lev)   == int[string]));
+    static assert(is(typeof(type)            == int[string]));
+    static assert(is(typeof(dochead_meta_aa) == string[string][string]));
+  }
+  auto rgx = Rgx();
+  if (auto m = line.match(rgx.heading)) {
+    /+ heading match +/
+    type["heading"] = State.on;
+    if (line.match(rgx.heading_seg_and_above)) {
+      type["biblio_section"] = State.off;
+      type["glossary_section"] = State.off;
+      type["blurb_section"] = State.off;
+    }
+    type["para"] = State.off;
+    ++line_occur["heading"];
+    an_object[an_object_key] ~= line ~= "\n";
+    an_object["lev"] ~= m.captures[1];
+    assertions_doc_structure(an_object, lv); // includes most of the logic for collapsed levels
+    switch (an_object["lev"]) {
+    case "A":
+      an_object[an_object_key]=(an_object[an_object_key])
+        .replaceFirst(rgx.variable_doc_title,
+          (dochead_meta_aa["title"]["full"] ~ ","))
+        .replaceFirst(rgx.variable_doc_author,
+          dochead_meta_aa["creator"]["author"]);
+      collapsed_lev["h0"] = 0;
+      an_object["lev_collapsed_number"] =
+        collapsed_lev["h0"].to!string;
+      lv["lv"] = DocStructMarkupHeading.h_sect_A;
+      ++lv["h0"];
+      lv["h1"] = State.off;
+      lv["h2"] = State.off;
+      lv["h3"] = State.off;
+      lv["h4"] = State.off;
+      lv["h5"] = State.off;
+      lv["h6"] = State.off;
+      lv["h7"] = State.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"] = State.off;
+      lv["h3"] = State.off;
+      lv["h4"] = State.off;
+      lv["h5"] = State.off;
+      lv["h6"] = State.off;
+      lv["h7"] = State.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"] = State.off;
+      lv["h4"] = State.off;
+      lv["h5"] = State.off;
+      lv["h6"] = State.off;
+      lv["h7"] = State.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"] = State.off;
+      lv["h5"] = State.off;
+      lv["h6"] = State.off;
+      lv["h7"] = State.off;
+      goto default;
+    case "1":
+      if (lv["h3"] > State.off) {
+        collapsed_lev["h4"] = collapsed_lev["h3"] + 1;
+      } else if (lv["h2"] > State.off) {
+        collapsed_lev["h4"] = collapsed_lev["h2"] + 1;
+      } else if (lv["h1"] > State.off) {
+        collapsed_lev["h4"] = collapsed_lev["h1"] + 1;
+      } else if (lv["h0"] > State.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"] = State.off;
+      lv["h6"] = State.off;
+      lv["h7"] = State.off;
+      goto default;
+    case "2":
+      if (lv["h5"] > State.off) {
+        an_object["lev_collapsed_number"] =
+          collapsed_lev["h5"].to!string;
+      } else if (lv["h4"] > State.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"] = State.off;
+      lv["h7"] = State.off;
+      goto default;
+    case "3":
+      if (lv["h6"] > State.off) {
+        an_object["lev_collapsed_number"] =
+          collapsed_lev["h6"].to!string;
+      } else if (lv["h5"] > State.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"] = State.off;
+      goto default;
+    case "4":
+      if (lv["h7"] > State.off) {
+        an_object["lev_collapsed_number"] =
+          collapsed_lev["h7"].to!string;
+      } else if (lv["h6"] > State.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;
+    }
+    debug(heading) {                         // heading
+      writeln(line.strip);
+    }
+  }
+}
+#+END_SRC
+
+**** para match                                                     :para:
+
+#+name: abs_functions_para
+#+BEGIN_SRC d
+void _para_match_(L,O,K,I,B,T,C)(
+  return ref L  line,
+  return ref O  an_object,
+  return ref K  an_object_key,
+  return ref I  indent,
+  return ref B  bullet,
+  return ref T  type,
+  return ref C  line_occur,
+) {
+  debug(asserts) {
+    static assert(is(typeof(line)          == char[]));
+    static assert(is(typeof(an_object)     == string[string]));
+    static assert(is(typeof(an_object_key) == string));
+    static assert(is(typeof(indent)        == int[string]));
+    static assert(is(typeof(bullet)        == bool));
+    static assert(is(typeof(type)          == int[string]));
+    static assert(is(typeof(line_occur)    == int[string]));
+  }
+  auto rgx = Rgx();
+  if (line_occur["para"] == State.off) {
+    line = font_faces_line(line);
+    /+ para matches +/
+    type["para"] = State.on;
+    an_object[an_object_key] ~= line;        // body_nugget
+    indent=[
+      "hang_position" : 0,
+      "base_position" : 0,
+    ];
+    bullet = false;
+    if (auto m = line.matchFirst(rgx.para_indent)) {
+      debug(paraindent) {                    // para indent
+        writeln(line);
+      }
+      indent["hang_position"] = (m.captures[1]).to!int;
+      indent["base_position"] = 0;
+    } else if (line.matchFirst(rgx.para_bullet)) {
+      debug(parabullet) {                    // para bullet
+        writeln(line);
+      }
+      bullet = true;
+    } else if (auto m = line.matchFirst(rgx.para_indent_hang)) {
+      debug(paraindenthang) {                // para indent hang
+        writeln(line);
+      }
+      indent=[
+        "hang_position" : (m.captures[1]).to!int,
+        "base_position" : (m.captures[2]).to!int,
+      ];
+    } else if (auto m = line.matchFirst(rgx.para_bullet_indent)) {
+      debug(parabulletindent) {              // para bullet indent
+        writeln(line);
+      }
+      indent=[
+        "hang_position" : (m.captures[1]).to!int,
+        "base_position" : 0,
+      ];
+      bullet = true;
+    }
+    ++line_occur["para"];
+  }
+}
+#+END_SRC
+
+**** text font face
+
+#+name: abs_functions_para
+#+BEGIN_SRC d
+auto font_faces_line(T)(
+  return ref T  textline,
+) {
+  auto rgx = Rgx();
+  if (textline.match(rgx.inline_faces_line)) {
+    textline = (textline)
+      .replaceFirst(rgx.inline_emphasis_line,   ("*{$1}*$2"))
+      .replaceFirst(rgx.inline_bold_line,       ("!{$1}!$2"))
+      .replaceFirst(rgx.inline_underscore_line, ("_{$1}_$2"))
+      .replaceFirst(rgx.inline_italics_line,    ("/{$1}/$2"));
+  }
+  return textline;
+}
+#+END_SRC
+
+**** tables
+
+- number of columns
+- column widths (either as given or uniform, first often different from rest)
+- column aligns (as given else default left for text, check whether can default right for digits)
+- table heading (auto align left)
+- table walls
+- TODO need to be able to align columns left or right (digits)
+
+***** table instructions
+
+#+name: abs_functions_table
+#+BEGIN_SRC d
+auto table_instructions(O,H)(
+  return ref O  table_object,
+  return ref H  table_head,
+) {
+  auto rgx = Rgx();
+  table_object.use               = "body";
+  table_object.is_of             = "block";
+  table_object.is_a              = "table";
+  table_object.inline_notes_reg  = false;
+  table_object.inline_notes_star = false;
+  table_object.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; // double check, may be obsolete
+    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;
+}
+#+END_SRC
+
+***** table array munge
+
+#+name: abs_functions_table
+#+BEGIN_SRC d
+auto table_array_munge(O,T)(
+  return ref O  table_object,
+  return ref T  table_array,
+) {
+  auto rgx = Rgx();
+  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 && comp_obj_block.table_heading) {
+      } else if (idx_r == 1 && col.match(rgx.numeric_col)) {
+        if ((comp_obj_block.table_column_aligns.length > idx_c)
+        && (comp_obj_block.table_column_aligns[idx_c].matchFirst(rgx.table_col_align_match))) {
+          comp_obj_block.table_column_aligns[idx_c]
+            = comp_obj_block.table_column_aligns[idx_c];
+        } else if (comp_obj_block.table_column_aligns.length > idx_c) {
+          comp_obj_block.table_column_aligns[idx_c] = "r";
+        } else {
+          comp_obj_block.table_column_aligns ~= "r";
+        }
+      } else if (idx_r == 1) {
+        if ((comp_obj_block.table_column_aligns.length > idx_c)
+        && (comp_obj_block.table_column_aligns[idx_c].matchFirst(rgx.table_col_align_match))) {
+          comp_obj_block.table_column_aligns[idx_c]
+            = comp_obj_block.table_column_aligns[idx_c];
+        } else if (comp_obj_block.table_column_aligns.length > idx_c) {
+          comp_obj_block.table_column_aligns[idx_c] = "l";
+        } else {
+          comp_obj_block.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 (comp_obj_block.table_number_of_columns != col_num) {
+    if (comp_obj_block.table_number_of_columns == 0) {
+      comp_obj_block.table_number_of_columns = (col_num).to!int;
+    } else {
+      debug(table_dev) {
+        writeln(comp_obj_block.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: ", comp_obj_block.table_column_aligns, "\n",
+      "no. of columns: ", comp_obj_block.table_number_of_columns, "\n",
+      "col widths: ", comp_obj_block.table_column_widths,
+        " sum: ", comp_obj_block.table_column_widths.sum, "\n",
+      _table_substantive);
+  }
+  comp_obj_block.text = _table_substantive;
+  return table_object;
+}
+#+END_SRC
+
+****** table array munge simple open & close
+
+#+name: abs_functions_table
+#+BEGIN_SRC d
+auto table_array_munge_open_close(O,T)(
+  return ref O  table_object,
+  return ref T  table_array,
+) {
+  auto rgx = Rgx();
+  auto mng = InlineMarkup();
+  string _table_substantive;
+  foreach(row; table_array) {
+    foreach(col; row) {
+      _table_substantive ~= mng.tc_o ~ col ~ mng.tc_c;
+    }
+    _table_substantive ~= "\n";
+  }
+  debug(table_dev) {
+    writeln(_table_substantive);
+  }
+  comp_obj_block.text = _table_substantive;
+  return table_object;
+}
+#+END_SRC
+
+***** table substantive munge
+
+#+name: abs_functions_table
+#+BEGIN_SRC d
+auto table_substantive_munge(O,T)(
+  return ref O  table_object,
+  return ref T  table_substantive,
+) {
+  auto rgx = Rgx();
+  auto munge = ObjInlineMarkupMunge();
+  string[] _table_rows = (table_substantive).split(rgx.table_row_delimiter);
+  string[] _table_cols;
+  string[][] _table;
+  foreach(col; _table_rows) {
+    _table_cols = col.split(rgx.table_col_delimiter);
+    _table ~= _table_cols;
+  }
+  table_object = table_array_munge(table_object, _table);
+  return table_object;
+}
+#+END_SRC
+
+***** table substantive munge special
+
+#+name: abs_functions_table
+#+BEGIN_SRC d
+auto table_substantive_munge_special(O,T)(
+  return ref O  table_object,
+  return ref T  table_substantive,
+) {
+  auto rgx = Rgx();
+  auto munge = ObjInlineMarkupMunge();
+  string[] _table_rows = (table_substantive).split(rgx.table_row_delimiter_special);
+  string[] _table_cols;
+  string[][] _table;
+  foreach(col; _table_rows) {
+    _table_cols = col.split(rgx.table_col_delimiter_special);
+    _table ~= _table_cols;
+  }
+  table_object = table_array_munge(table_object, _table);
+  return table_object;
+}
+#+END_SRC
+
+*** function emitters                                            :emitters:
+**** object                                                       :object:
+***** ocn                                                           :ocn:
+
+#+name: meta_emitters_ocn
+#+BEGIN_SRC d
+struct OCNemitter {
+  int obj_cite_number, obj_cite_number_;
+  int ocn_emitter(int ocn_status_flag)
+  in { assert(ocn_status_flag <= 3); }
+  body {
+    if (ocn_status_flag == 3) {
+      obj_cite_number = obj_cite_number_ = 1;
+    } else {
+      obj_cite_number=(ocn_status_flag == 0)
+      ? ++obj_cite_number_
+      : 0;
+    }
+    assert(obj_cite_number >= 0);
+    return obj_cite_number;
+  }
+  invariant() {
+  }
+}
+#+END_SRC
+
+***** object inline markup munge                          :markup:inline:
+
+****** { struct, inline markup munge
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+struct ObjInlineMarkupMunge {
+  string[string] obj_txt;
+  int n_foot, n_foot_reg, n_foot_sp_asterisk, n_foot_sp_plus;
+  string asterisks_;
+  string obj_txt_out, tail, note;
+  auto rgx = Rgx();
+  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;
+  }
+#+END_SRC
+
+****** url links
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  string url_links(Ot)(Ot obj_txt_in) {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+    auto mng = InlineMarkup();
+    obj_txt_in = obj_txt_in.replaceAll(rgx.inline_mono, (mng.mono ~ "{$1}" ~ mng.mono));
+    /+ url matched +/
+    if (obj_txt_in.match(rgx.inline_url_generic)) {
+      /+ link: naked url: http://url +/
+      if (obj_txt_in.match(rgx.inline_link_naked_url)) {
+        obj_txt_in = (obj_txt_in).replaceAll(
+            rgx.inline_link_naked_url,
+            ("$1"
+              ~ mkup.lnk_o ~ "$2" ~ mkup.lnk_c
+              ~  mkup.url_o ~ "$2" ~  mkup.url_c
+              ~ "$3")            // ("$1{ $2 }$2$3")
+          );
+      }
+      /+ link with helper for endnote including the url:
+           {~^ link which includes url as footnote }http://url
+         maps to:
+           { link which includes url as footnote }http://url~{ { http://url }http://url }~
+      +/
+      if (obj_txt_in.match(rgx.inline_link_endnote_url_helper)) {
+        obj_txt_in = (obj_txt_in).replaceAll(
+          rgx.inline_link_endnote_url_helper_punctuated,
+          (mkup.lnk_o ~ "$1" ~ mkup.lnk_c
+            ~ mkup.url_o ~ "$2" ~ mkup.url_c
+            ~ "~{ " ~ mkup.lnk_o ~ " $2 " ~ mkup.lnk_c
+            ~ mkup.url_o ~ "$2" ~ mkup.url_c
+            ~  " }~$3") // ("{ $1 }$2~{ { $2 }$2 }~$3")
+        );
+        obj_txt_in = (obj_txt_in).replaceAll(
+          rgx.inline_link_endnote_url_helper,
+          (mkup.lnk_o ~ "$1" ~ mkup.lnk_c
+            ~ mkup.url_o ~ "$2" ~ mkup.url_c
+            ~ "~{ " ~ mkup.lnk_o ~ " $2 " ~ mkup.lnk_c
+            ~ mkup.url_o ~ "$2" ~ mkup.url_c
+            ~  " }~") // ("{ $1 }$2~{ { $2 }$2 }~")
+        );
+      }
+      /+ link with regular markup:
+         { linked text or image }http://url
+      +/
+      if (obj_txt_in.match(rgx.inline_link_markup_regular)) {
+        obj_txt_in = (obj_txt_in).replaceAll(
+          rgx.inline_link_markup_regular,
+          ("$1"
+            ~ mkup.lnk_o ~ "$2" ~ mkup.lnk_c
+            ~  mkup.url_o ~ "$3" ~  mkup.url_c
+            ~ "$4")            // ("$1{ $2 }$3$4")
+        );
+      }
+    }
+    obj_txt_in = obj_txt_in.replaceAll(rgx.inline_mono_box, ("#{$1}#"));
+    return obj_txt_in;
+  }
+#+END_SRC
+
+****** footnotes endnotes markup
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  auto footnotes_endnotes_markup_and_number_or_stars(Ot)(Ot obj_txt_in, bool reset_note_numbers) {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+    /+ endnotes (regular) +/
+    bool flg_notes_reg  = false;
+    bool flg_notes_star = 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;
+    }
+    if (obj_txt_in.match(rgx.inline_notes_al_gen)) {
+      if (auto m = obj_txt_in.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;
+            obj_txt_out ~= n.hit.to!string.replaceFirst(
+              rgx.inline_al_delimiter_open_symbol_star,
+              (mkup.en_a_o ~ replicate(asterisks_, n_foot_sp_asterisk) ~ " ")
+            ) ~ "\n";
+          } else if (n.hit.to!string.match(rgx.inline_al_delimiter_open_regular)) {
+            flg_notes_reg =  true;
+            ++n_foot_reg;
+            n_foot=n_foot_reg;
+            obj_txt_out ~= n.hit.to!string.replaceFirst(
+              rgx.inline_al_delimiter_open_regular,
+              (mkup.en_a_o ~ to!string(n_foot) ~ " ")
+            ) ~ "\n";
+          } else {
+            obj_txt_out ~= n.hit.to!string ~ "\n";
+          }
+        }
+      }
+    } else {
+      obj_txt_out = obj_txt_in;
+    }
+    auto t = tuple(
+      obj_txt_out,
+      flg_notes_reg,
+      flg_notes_star,
+    );
+    return t;
+  }
+#+END_SRC
+
+****** object notes and links
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  private auto object_notes_and_links_(Ot)(Ot obj_txt_in, bool reset_note_numbers=false)
+  in {
+    debug(asserts) {
+      assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt_out = "";
+    bool urls = 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)
+      );
+    /+ url matched +/
+    if (obj_txt_in.match(rgx.inline_url)) {
+      urls = true;
+      obj_txt_in = url_links(obj_txt_in);
+    }
+    auto ftn = footnotes_endnotes_markup_and_number_or_stars(obj_txt_in, reset_note_numbers);
+    obj_txt_out = ftn[0];
+    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.captures[1]);
+        writeln(m.hit);
+      }
+    }
+    auto t = tuple(
+      obj_txt_out,
+      ftn[1],
+      ftn[2],
+      urls,
+    );
+    return t;
+  }
+  auto init()
+  in { }
+  body {
+    auto t = object_notes_and_links_("");
+    return t;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** heading
+- identified text by heading level marker followed by text until two new lines
+- general markup
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  auto munge_heading(Ot)(Ot obj_txt_in, bool reset_note_numbers=false)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt["munge"]=(obj_txt_in)
+     .replaceFirst(rgx.heading, "")
+     .replaceFirst(rgx.obj_cite_number_off_all, "")
+     .strip;
+    auto t = 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 t;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** para
+- paragraph text without other identification until two new lines
+- general markup
+  - paragraph attributes
+  - font faces (bold, italics, underscore etc.)
+  - footnotes/endnotes
+  - links
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  auto munge_para(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt["munge"]=(obj_txt_in)
+      .replaceFirst(rgx.para_attribs, "")
+      .replaceFirst(rgx.obj_cite_number_off_all, "");
+    auto t = object_notes_and_links_(obj_txt["munge"]);
+    debug(munge) {
+      writeln(__LINE__);
+      writeln(obj_txt_in);
+      writeln(__LINE__);
+      writeln(obj_txt["munge"].to!string);
+    }
+    return t;
+  }
+#+END_SRC
+
+****** quote
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  string munge_quote(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt["munge"]=obj_txt_in;
+    return obj_txt["munge"];
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** group
+- group block identified by open an close tags
+- general markup
+  - paragraph attributes
+  - font faces (bold, italics, underscore etc.)
+  - footnotes/endnotes
+  - links
+- newlines detected and kept?
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  auto munge_group(string obj_txt_in)
+  in { }
+  body {
+    obj_txt["munge"]=obj_txt_in;
+    auto t = object_notes_and_links_(obj_txt["munge"]);
+    return t;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** block
+- group block identified by open an close tags
+- general markup
+  - paragraph attributes
+  - font faces (bold, italics, underscore etc.)
+  - footnotes/endnotes
+  - links
+- newlines detected and kept?
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  auto munge_block(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt["munge"]=obj_txt_in;
+    auto t = object_notes_and_links_(obj_txt["munge"]);
+    return t;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** verse (poem)
+- sub part of poem block which is identified by open an close tags, separated from other verse by double newline
+- newlines
+- indentation
+- what part of general markup?
+  - font faces (bold, italics, underscore etc.)
+  - footnotes/endnotes
+  - links?
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  auto munge_verse(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt["munge"]=obj_txt_in;
+    auto t = object_notes_and_links_(obj_txt["munge"]);
+    return t;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** code
+- newlines
+- indentation
+- possibly identify syntax for coloring (obj attribute)
+- numbered code blocks (markup/obj attribute?)
+- no general markup
+- one special character represented by mkup.nbsp ░
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  string munge_code(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt_in = (obj_txt_in).replaceAll(rgx.space, mkup.nbsp);
+    obj_txt["munge"] = obj_txt_in;
+    return obj_txt["munge"];
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** table
+- table block identified by open an close tags
+- table markup
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  string munge_table(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt["munge"]=obj_txt_in;
+    return obj_txt["munge"];
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** comment
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+  string munge_comment(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    obj_txt["munge"]=obj_txt_in;
+    return obj_txt["munge"];
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** }
+
+#+name: meta_emitters_obj_inline_markup_munge
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+***** toc, tags, object inline markup                     :markup:inline:
+****** {
+
+#+name: meta_emitters_obj_inline_markup
+#+BEGIN_SRC d
+struct ObjInlineMarkup {
+  auto rgx = Rgx();
+  auto munge = ObjInlineMarkupMunge();
+  string[string] obj_txt;
+#+END_SRC
+
+****** object inline markup and anchor tags              :markup:inline:
+
+#+name: meta_emitters_obj_inline_markup_and_anchor_tags_and_misc
+#+BEGIN_SRC d
+  auto obj_inline_markup_and_anchor_tags_and_misc(O,K,Ma)(
+    O  obj_,
+    K  obj_key_,
+    Ma dochead_make_aa
+  )
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_)            == string[string]));
+      static assert(is(typeof(obj_key_)        == string));
+      static assert(is(typeof(dochead_make_aa) == string[string][string]));
+    }
+  }
+  body {
+    obj_txt["munge"] = obj_[obj_key_].dup;
+    obj_txt["munge"] = (obj_["is"].match(ctRegex!(`verse|code`)))
+    ? obj_txt["munge"]
+    : strip(obj_txt["munge"]);
+    static __gshared string[] anchor_tags_ = [];
+    auto x = munge.init;
+    bool[string] obj_notes_and_links;
+    obj_notes_and_links["notes_reg"]  = false;
+    obj_notes_and_links["notes_star"] = false;
+    obj_notes_and_links["links"]      = false;
+    switch (obj_["is"]) {
+    case "heading":
+      static __gshared string anchor_tag = "";
+      obj_txt["munge"]=_configured_auto_heading_numbering_and_segment_anchor_tags(obj_txt["munge"], obj_, dochead_make_aa);
+      obj_txt["munge"]=_make_segment_anchor_tags_if_none_provided(obj_txt["munge"], obj_["lev"]);
+      if (auto m = obj_txt["munge"].match(rgx.heading_anchor_tag)) {
+        anchor_tag = m.captures[1];
+        anchor_tags_ ~= anchor_tag;
+      } 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 "verse":
+      x = munge.munge_verse(obj_txt["munge"]);
+      goto default;
+    case "code":
+      obj_txt["munge"] = munge.munge_code(obj_txt["munge"]);
+      break;
+    case "table":
+      obj_txt["munge"] = munge.munge_table(obj_txt["munge"]);
+      break;
+    case "quote":
+      obj_txt["munge"] = munge.munge_quote(obj_txt["munge"]);
+      break;
+    case "comment":
+      obj_txt["munge"] = munge.munge_comment(obj_txt["munge"]);
+      break;
+    case "doc_end_reset":
+      munge.initialize_note_numbers();
+      break;
+    default:
+      /+ para, heading, group, block, verse +/
+      obj_txt["munge"]                  = x[0];
+      obj_notes_and_links["notes_reg"]  = x[1];
+      obj_notes_and_links["notes_star"] = x[2];
+      obj_notes_and_links["links"]      = x[3];
+      break;
+    }
+    auto t = tuple(
+      obj_txt["munge"],
+      anchor_tags_,
+      obj_notes_and_links["notes_reg"],
+      obj_notes_and_links["notes_star"],
+      obj_notes_and_links["links"],
+    );
+    anchor_tags_=[];
+    return t;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** toc (table of contents), build, gather headings   :markup:inline:
+
+#+name: meta_emitters_obj_inline_markup_table_of_contents
+#+BEGIN_SRC d
+  auto _clean_heading_toc_(Toc)(
+    Toc heading_toc_,
+  ) {
+   debug(asserts) {
+     static assert(is(typeof(heading_toc_) == char[]));
+   }
+   auto m = (cast(char[]) heading_toc_).matchFirst(rgx.heading);
+   heading_toc_ = (m.post).replaceAll(
+     rgx.inline_notes_curly_gen,
+     "");
+   return heading_toc_;
+  };
+  auto table_of_contents_gather_headings(O,Ma,Ts,Ta,X,Toc)(
+    O            obj_,
+    Ma           dochead_make_aa,
+    Ts           segment_anchor_tag_that_object_belongs_to,
+    Ta           _anchor_tag,
+    return ref X lev4_subtoc,
+    Toc          the_table_of_contents_section,
+  )
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_)                                      == string[string]));
+      static assert(is(typeof(dochead_make_aa)                           == string[string][string]));
+      static assert(is(typeof(segment_anchor_tag_that_object_belongs_to) == string));
+      static assert(is(typeof(_anchor_tag)                               == string));
+      static assert(is(typeof(lev4_subtoc)                               == string[][string]));
+      static assert(is(typeof(the_table_of_contents_section)             == ObjGenericComposite[][string]));
+    }
+  }
+  body {
+    ObjGenericComposite comp_obj_toc;
+    mixin InternalMarkup;
+    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",
+        heading_toc_,
+        _anchor_tag,
+      );
+      toc_txt_= munge.url_links(toc_txt_);
+      comp_obj_toc                       = comp_obj_toc.init;
+      comp_obj_toc.use                   = "frontmatter";
+      comp_obj_toc.is_of                 = "para";
+      comp_obj_toc.is_a                  = "toc";
+      comp_obj_toc.ocn                   = 0;
+      comp_obj_toc.obj_cite_number       = "";
+      comp_obj_toc.indent_hang           = indent["hang_position"];
+      comp_obj_toc.indent_base           = indent["base_position"];
+      comp_obj_toc.bullet                = false;
+      comp_obj_toc.text                  = toc_txt_.to!string.strip;
+      comp_obj_toc.inline_links          = true;
+      the_table_of_contents_section["scroll"] ~= comp_obj_toc;
+    } else {
+      indent=[
+        "hang_position" : 0,
+        "base_position" : 0,
+      ];
+      comp_obj_toc                       = comp_obj_toc.init;
+      comp_obj_toc.use                   = "frontmatter";
+      comp_obj_toc.is_of                 = "para";
+      comp_obj_toc.is_a                  = "toc";
+      comp_obj_toc.ocn                   = 0;
+      comp_obj_toc.obj_cite_number       = "";
+      comp_obj_toc.indent_hang           = indent["hang_position"];
+      comp_obj_toc.indent_base           = indent["base_position"];
+      comp_obj_toc.bullet                = false;
+      comp_obj_toc.text                  = "Table of Contents";
+      comp_obj_toc.inline_links          = true;
+      the_table_of_contents_section["scroll"] ~= comp_obj_toc;
+    }
+    comp_obj_toc                       = comp_obj_toc.init;
+    comp_obj_toc.use                   = "frontmatter";
+    comp_obj_toc.is_of                 = "para";
+    comp_obj_toc.is_a                  = "toc";
+    comp_obj_toc.ocn                   = 0;
+    comp_obj_toc.obj_cite_number       = "";
+    comp_obj_toc.bullet                = false;
+    comp_obj_toc.inline_links          = true;
+    switch (obj_["lev_markup_number"].to!int) {
+    case 0:
+      indent=[
+        "hang_position" : 0,
+        "base_position" : 0,
+      ];
+      toc_txt_ = "{ Table of Contents }" ~ mkup.mark_internal_site_lnk ~ "toc.fnSuffix";
+      toc_txt_= munge.url_links(toc_txt_);
+      comp_obj_toc.indent_hang             = indent["hang_position"];
+      comp_obj_toc.indent_base             = indent["base_position"];
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
+      comp_obj_toc.inline_links            = true;
+      the_table_of_contents_section["seg"] ~= comp_obj_toc;
+      break;
+    case 1: .. case 3:
+      indent=[
+        "hang_position" : obj_["lev_markup_number"].to!int,
+        "base_position" : obj_["lev_markup_number"].to!int,
+      ];
+      toc_txt_ = format(
+        "%s",
+        heading_toc_,
+      );
+      toc_txt_= munge.url_links(toc_txt_);
+      comp_obj_toc.indent_hang             = indent["hang_position"];
+      comp_obj_toc.indent_base             = indent["base_position"];
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
+      comp_obj_toc.inline_links            = true;
+      the_table_of_contents_section["seg"] ~= comp_obj_toc;
+      break;
+    case 4:
+      toc_txt_ = format(
+        "{ %s }%s%s%s",
+        heading_toc_,
+        mkup.mark_internal_site_lnk,
+        segment_anchor_tag_that_object_belongs_to,
+        ".fnSuffix",
+      );
+      lev4_subtoc[segment_anchor_tag_that_object_belongs_to] = [];
+      toc_txt_= munge.url_links(toc_txt_);
+      indent=[
+        "hang_position" : obj_["lev_markup_number"].to!int,
+        "base_position" : obj_["lev_markup_number"].to!int,
+      ];
+      comp_obj_toc.indent_hang             = indent["hang_position"];
+      comp_obj_toc.indent_base             = indent["base_position"];
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
+      comp_obj_toc.inline_links            = true;
+      the_table_of_contents_section["seg"] ~= comp_obj_toc;
+      break;
+    case 5: .. case 7:
+      toc_txt_ = format(
+        "{ %s }%s%s%s#%s",
+        heading_toc_,
+        mkup.mark_internal_site_lnk,
+        segment_anchor_tag_that_object_belongs_to,
+        ".fnSuffix",
+        _anchor_tag,
+      );
+      subtoc_txt_ = format(
+        "{ %s }#%s",
+        heading_toc_,
+        _anchor_tag,
+      );
+      lev4_subtoc[segment_anchor_tag_that_object_belongs_to]
+      ~= munge.url_links(obj_["lev_markup_number"]
+           ~ "~ " ~ subtoc_txt_.to!string.strip
+         );
+      toc_txt_= munge.url_links(toc_txt_);
+      indent=[
+        "hang_position" : obj_["lev_markup_number"].to!int,
+        "base_position" : obj_["lev_markup_number"].to!int,
+      ];
+      comp_obj_toc.indent_hang             = indent["hang_position"];
+      comp_obj_toc.indent_base             = indent["base_position"];
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
+      comp_obj_toc.inline_links            = true;
+      the_table_of_contents_section["seg"] ~= comp_obj_toc;
+      break;
+    default:
+      break;
+    }
+    return the_table_of_contents_section;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** private:
+
+#+name: meta_emitters_obj_inline_markup_private
+#+BEGIN_SRC d
+private:
+#+END_SRC
+
+******* make heading number & segment anchor tags if instructed :markup:inline:segment:anchor:tags:
+
+#+name: meta_emitters_obj_inline_markup_heading_numbering_segment_anchor_tags
+#+BEGIN_SRC d
+  static string _configured_auto_heading_numbering_and_segment_anchor_tags(M,O,Ma)(
+    M  munge_,
+    O  obj_,
+    Ma dochead_make_aa
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(munge_)          == string));
+      static assert(is(typeof(obj_)            == string[string]));
+      static assert(is(typeof(dochead_make_aa) == string[string][string]));
+    }
+    if (dochead_make_aa["make"]["num_top"].length > 0) {
+      static __gshared int heading_num_top_level=9;
+      static __gshared int heading_num_depth=2;
+      static __gshared int heading_num_0 = 0;
+      static __gshared int heading_num_1 = 0;
+      static __gshared int heading_num_2 = 0;
+      static __gshared int heading_num_3 = 0;
+      static __gshared string heading_number_auto_composite = "";
+      if (heading_num_top_level==9) {
+        if (dochead_make_aa["make"]["num_depth"].length > 0) {
+          heading_num_depth = dochead_make_aa["make"]["num_depth"].to!uint;
+        }
+        switch (dochead_make_aa["make"]["num_top"]) {
+        case "A":
+          break;
+        case "B":
+          heading_num_top_level=1;
+          break;
+        case "C":
+          heading_num_top_level=2;
+          break;
+        case "D":
+          heading_num_top_level=3;
+          break;
+        case "1":
+          heading_num_top_level=4;
+          break;
+        case "2":
+          heading_num_top_level=5;
+          break;
+        case "3":
+          heading_num_top_level=6;
+          break;
+        case "4":
+          heading_num_top_level=7;
+          break;
+        default:
+          break;
+        }
+      }
+      /+ num_depth minimum 0
+         (1.) default 2 (1.1.1) max 3 (1.1.1.1) implement +/
+      if (
+        heading_num_top_level
+        > obj_["lev_markup_number"].to!uint
+      ) {
+        heading_num_1 = 0;
+        heading_num_2 = 0;
+        heading_num_3 = 0;
+      } else if (
+        heading_num_top_level
+        == obj_["lev_markup_number"].to!uint
+      ) {
+        heading_num_0 ++;
+        heading_num_1 = 0;
+        heading_num_2 = 0;
+        heading_num_3 = 0;
+      } else if (
+        heading_num_top_level
+        == (obj_["lev_markup_number"].to!uint - 1)
+      ) {
+        heading_num_1 ++;
+        heading_num_2 = 0;
+        heading_num_3 = 0;
+      } else if (
+        heading_num_top_level
+        == (obj_["lev_markup_number"].to!uint - 2)
+      ) {
+        heading_num_2 ++;
+        heading_num_3 = 0;
+      } else if (
+        heading_num_top_level
+        == (obj_["lev_markup_number"].to!uint - 3)
+      ) {
+        heading_num_3 ++;
+      }
+      if (heading_num_3 > 0) {
+        heading_number_auto_composite =
+          (heading_num_depth == 3)
+          ? ( 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 =
+          ((heading_num_depth >= 2)
+          && (heading_num_depth <= 3))
+          ?  ( 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 =
+          ((heading_num_depth >= 1)
+          && (heading_num_depth <= 3))
+          ? ( heading_num_0.to!string ~ "."
+               ~ heading_num_1.to!string
+             )
+          : "";
+      } else if (heading_num_0 > 0) {
+        heading_number_auto_composite =
+          ((heading_num_depth >= 0)
+          && (heading_num_depth <= 3))
+          ?  (heading_num_0.to!string)
+          : "";
+      } else {
+        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 >= heading_num_top_level)) {
+        munge_=(munge_)
+        .replaceFirst(rgx.heading,
+          "$1~$2 " ~ heading_number_auto_composite ~ ". ")
+        .replaceFirst(rgx.heading_marker_missing_tag,
+          "$1~" ~ heading_number_auto_composite ~ " ");
+      }
+    }
+    return munge_;
+  }
+#+END_SRC
+
+******* make segment anchor tags if not provided :markup:inline:segment:anchor:tags:
+
+#+name: meta_emitters_obj_inline_markup_heading_numbering_segment_anchor_tags
+#+BEGIN_SRC d
+  static string _make_segment_anchor_tags_if_none_provided(M,Lv)(M munge_, Lv lev_) {
+    debug(asserts) {
+      static assert(is(typeof(munge_) == string));
+      static assert(is(typeof(lev_)   == string));
+    }
+    if (!(munge_.match(rgx.heading_anchor_tag))) {
+      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] ~ " ");
+        } 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"
+        static __gshared int heading_num_lev1 = 0;
+        heading_num_lev1 ++;
+        munge_=(munge_).replaceFirst(
+          rgx.heading_marker_missing_tag,
+          "$1~" ~ "x" ~ heading_num_lev1.to!string ~ " ");
+      }
+    }
+    return munge_;
+  }
+#+END_SRC
+
+******** unittests
+
+#+name: meta_emitters_obj_inline_markup_heading_numbering_segment_anchor_tags
+#+BEGIN_SRC d
+  unittest {
+    string txt_lev="1";
+    string txt_in, txt_out;
+
+    txt_in = "1~copyright Copyright";
+    txt_out ="1~copyright Copyright";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in = "1~ 6. Writing Copyright Licenses";
+    txt_out ="1~s6 6. Writing Copyright Licenses";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in= "1~ 1. Reinforcing trends";
+    txt_out= "1~s1 1. Reinforcing trends";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in= "1~ 11 SCIENCE AS A COMMONS";
+    txt_out= "1~s11 11 SCIENCE AS A COMMONS";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in= "1~ Chapter 1";
+    txt_out="1~chapter_1 Chapter 1";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in= "1~ Chapter 1.";
+    txt_out="1~chapter_1 Chapter 1.";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in= "1~ Chapter 1: Done";
+    txt_out="1~chapter_1 Chapter 1: Done";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in=  "1~ Chapter 11 - The Battle Over the Institutional Ecology of the Digital Environment";
+    txt_out= "1~chapter_11 Chapter 11 - The Battle Over the Institutional Ecology of the Digital Environment";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in= "1~ CHAPTER I.";
+    txt_out="1~x1 CHAPTER I.";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+
+    txt_in= "1~ CHAPTER II.";
+    txt_out="1~x2 CHAPTER II.";
+    assert(_make_segment_anchor_tags_if_none_provided(txt_in, txt_lev) == txt_out);
+  }
+#+END_SRC
+
+****** }
+
+#+name: meta_emitters_obj_inline_markup_close
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+***** object attrib                                          :attributes:
+****** { attributes structure open, public
+
+#+name: meta_emitters_obj_attributes
+#+BEGIN_SRC d
+struct ObjAttributes {
+  string[string] _obj_attrib;
+#+END_SRC
+
+****** emitter obj attributes, public
+
+#+name: meta_emitters_obj_attributes_public
+#+BEGIN_SRC d
+  string obj_attributes(Oi,OR,OH)(
+    Oi obj_is_,
+    OR obj_raw,
+    OH _comp_obj_heading,
+  )
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_is_)           == string));
+      static assert(is(typeof(obj_raw)           == string));
+      static assert(is(typeof(_comp_obj_heading) == ObjGenericComposite));
+    }
+  }
+  body {
+    scope(exit) {
+      destroy(obj_is_);
+      destroy(obj_raw);
+      destroy(_comp_obj_heading);
+    }
+    _obj_attrib["json"] ="{";
+    switch (obj_is_) {
+    case "heading":
+      _obj_attrib["json"] ~= _heading(obj_raw);
+      break;
+    case "para":
+      _obj_attrib["json"] ~= _para_and_blocks(obj_raw)
+      ~ _para(obj_raw);
+      break;
+    case "code":
+      _obj_attrib["json"] ~= _code(obj_raw);
+      break;
+    case "group":
+      _obj_attrib["json"] ~= _para_and_blocks(obj_raw)
+      ~ _group(obj_raw);
+      break;
+    case "block":
+      _obj_attrib["json"] ~= _para_and_blocks(obj_raw)
+      ~ _block(obj_raw);
+      break;
+    case "verse":
+      _obj_attrib["json"] ~= _verse(obj_raw);
+      break;
+    case "quote":
+      _obj_attrib["json"] ~= _quote(obj_raw);
+      break;
+    case "table":
+      _obj_attrib["json"] ~= _table(obj_raw);
+      break;
+    case "comment":
+      _obj_attrib["json"] ~= _comment(obj_raw);
+      break;
+    default:
+      _obj_attrib["json"] ~= _para(obj_raw);
+      break;
+    }
+    _obj_attrib["json"] ~=" }";
+    _obj_attrib["json"]=_set_additional_values_parse_as_json(_obj_attrib["json"], obj_is_, _comp_obj_heading);
+    debug(structattrib) {
+      if (oa_j["is"].str() == "heading") {
+        writeln(_obj_attrib["json"]);
+        writeln(
+          "is: ", oa_j["is"].str(),
+          "; obj_cite_number: ", oa_j["obj_cite_number"].integer()
+        );
+      }
+    }
+    return _obj_attrib["json"];
+  }
+  invariant() {
+  }
+#+END_SRC
+
+****** private
+
+#+name: meta_emitters_obj_attributes_private
+#+BEGIN_SRC d
+  private:
+  string _obj_attributes;
+#+END_SRC
+
+******* attrubutes
+******** para & blocks
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _para_and_blocks(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    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.captures[1].to!string ~ ","
+      ~ " \"indent_base\": " ~ m.captures[1].to!string ~ ",";
+    } else if (auto m = obj_txt_in.matchFirst(rgx.para_indent_hang)) {
+      _obj_attributes =" \"bullet\": \"false\","
+      ~ " \"indent_hang\": " ~ m.captures[1].to!string ~ ","
+      ~ " \"indent_base\": " ~  m.captures[2].to!string ~ ",";
+    } else if (auto m = obj_txt_in.matchFirst(rgx.para_indent)) {
+      _obj_attributes =" \"bullet\": \"false\","
+      ~ " \"indent_hang\": " ~ m.captures[1].to!string ~ ","
+      ~ " \"indent_base\": " ~ m.captures[1].to!string ~ ",";
+    } else {
+      _obj_attributes =" \"bullet\": \"false\","
+      ~ " \"indent_hang\": 0,"
+      ~ " \"indent_base\": 0,";
+    }
+    return _obj_attributes;
+  }
+#+END_SRC
+
+******** heading
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _heading(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"para\","
+    ~ " \"is\": \"heading\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** para
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _para(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"para\","
+    ~ " \"is\": \"para\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** quote
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _quote(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"block\","
+    ~ " \"is\": \"quote\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** group
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _group(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"block\","
+    ~ " \"is\": \"group\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** block
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _block(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"block\","
+    ~ " \"is\": \"block\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** verse
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _verse(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"block\","
+    ~ " \"is\": \"verse\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** code
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _code(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"block\","
+    ~ " \"is\": \"code\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** table
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _table(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"content\","
+    ~ " \"of\": \"block\","
+    ~ " \"is\": \"table\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******** comment
+
+#+name: meta_emitters_obj_attributes_private_an_attribute
+#+BEGIN_SRC d
+  string _comment(Ot)(Ot obj_txt_in)
+  in {
+    debug(asserts) {
+      static assert(is(typeof(obj_txt_in) == string));
+    }
+  }
+  body {
+    _obj_attributes = " \"use\": \"comment\","
+    ~ " \"of\": \"comment\","
+    ~ " \"is\": \"comment\"";
+    return _obj_attributes;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+******* set additional attribute values, parse as json
+
+#+name: meta_emitters_obj_attributes_private_json
+#+BEGIN_SRC d
+  string _set_additional_values_parse_as_json(OA,Oi,OH)(
+    OA _obj_attrib,
+    Oi obj_is_,
+    OH _comp_obj_heading,
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(_obj_attrib)       == string));
+      static assert(is(typeof(obj_is_)           == string));
+      static assert(is(typeof(_comp_obj_heading) == ObjGenericComposite));
+    }
+    JSONValue oa_j = parseJSON(_obj_attrib);
+    assert(
+      (oa_j.type == JSON_TYPE.OBJECT)
+    );
+    if (obj_is_ == "heading") {
+      oa_j.object["obj_cite_number"] = _comp_obj_heading.ocn;
+      oa_j.object["lev_markup_number"] = _comp_obj_heading.heading_lev_markup;
+      oa_j.object["lev_collapsed_number"] = _comp_obj_heading.heading_lev_collapsed;
+      oa_j.object["heading_ptr"] =
+        _comp_obj_heading.ptr_heading;
+      oa_j.object["doc_object_ptr"] =
+        _comp_obj_heading.ptr_doc_object;
+    }
+    oa_j.object["parent_obj_cite_number"] = _comp_obj_heading.parent_ocn;
+    oa_j.object["parent_lev_markup_number"] = _comp_obj_heading.parent_lev_markup;
+    _obj_attrib = oa_j.toString();
+    return _obj_attrib;
+  }
+#+END_SRC
+
+****** }
+
+#+name: meta_emitters_obj_attributes_private_close
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+**** book index                                               :book:index:
+***** book index nugget hash                                :hash:nugget:
+
+#+name: meta_emitters_book_index_nugget
+#+BEGIN_SRC d
+struct BookIndexNuggetHash {
+  string main_term, sub_term, sub_term_bits;
+  int obj_cite_number_offset, obj_cite_number_endpoint;
+  string[] obj_cite_numbers;
+  string[][string][string] bi;
+  string[][string][string] hash_nugget;
+  string[] bi_main_terms_split_arr;
+  string[][string][string] bookindex_nugget_hash(BI,N,S)(
+    BI bookindex_section,
+    N  obj_cite_number,
+    S  segment_anchor_tag,
+  )
+  in {
+    debug(asserts) {
+      static assert(is(typeof(bookindex_section) == string));
+      static assert(is(typeof(obj_cite_number)   == int));
+    }
+    debug(bookindexraw) {
+      if (!bookindex_section.empty) {
+        writeln(
+          "* [bookindex] ",
+          "[", obj_cite_number.to!string, ": ", segment_anchor_tag, "] ", bookindex_section
+        );
+      }
+    }
+  }
+  body {
+    auto rgx = Rgx();
+    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_obj_cite_numbers_match)
+        ) {
+          main_term = m.captures[1].strip;
+          obj_cite_number_offset = m.captures[2].to!int;
+          obj_cite_number_endpoint=(obj_cite_number + obj_cite_number_offset);
+          obj_cite_numbers ~= (obj_cite_number.to!string ~ "-" ~ to!string(obj_cite_number_endpoint)
+          ~ ":" ~ segment_anchor_tag);
+        } else {
+          main_term = bi_main_term_and_rest[0].strip;
+          obj_cite_numbers ~= obj_cite_number.to!string
+          ~ ":" ~ segment_anchor_tag;
+        }
+        bi[main_term]["_a"] ~= obj_cite_numbers;
+        obj_cite_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_obj_cite_number_offset_split
+            );
+          foreach (sub_terms_bits; bi_sub_terms_split_arr) {
+            if (auto m = sub_terms_bits.match(rgx.bi_term_and_obj_cite_numbers_match)) {
+              sub_term = m.captures[1].strip;
+              obj_cite_number_offset = m.captures[2].to!int;
+              obj_cite_number_endpoint=(obj_cite_number + obj_cite_number_offset);
+              obj_cite_numbers ~= (obj_cite_number.to!string ~ " - " ~ to!string(obj_cite_number_endpoint)
+              ~ ":" ~ segment_anchor_tag);
+            } else {
+              sub_term = sub_terms_bits.strip;
+              obj_cite_numbers ~= to!string(obj_cite_number)
+              ~ ":" ~ segment_anchor_tag;
+            }
+            if (!empty(sub_term)) {
+              bi[main_term][sub_term] ~= obj_cite_numbers;
+            }
+            obj_cite_numbers=null;
+          }
+        }
+      }
+    }
+    hash_nugget = bi;
+    return hash_nugget;
+  }
+  invariant() {
+  }
+}
+#+END_SRC
+
+***** book index (sort &) report indented               :report:indented:
+
+#+name: meta_emitters_book_index_report_indented
+#+BEGIN_SRC d
+struct BookIndexReportIndent {
+  int mkn, skn;
+  auto bookindex_report_indented(BI)(
+    BI bookindex_unordered_hashes
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(bookindex_unordered_hashes) == string[][string][string]));
+    }
+    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;
+    }
+  }
+}
+#+END_SRC
+
+***** book index (sort &) report section                 :report:section:
+****** { book index struct open
+
+#+name: meta_emitters_book_index_report_section
+#+BEGIN_SRC d
+struct BookIndexReportSection {
+  int  mkn, skn;
+  auto rgx = Rgx();
+  auto munge = ObjInlineMarkupMunge();
+#+END_SRC
+
+****** bookindex write section
+
+#+name: meta_emitters_book_index_report_section
+#+BEGIN_SRC d
+  auto bookindex_write_section(BI)(
+    BI bookindex_unordered_hashes
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(bookindex_unordered_hashes) == string[][string][string]));
+    }
+    auto mainkeys=bookindex_unordered_hashes.byKey.array.sort().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().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;
+    }
+  }
+#+END_SRC
+
+****** book index (sort &) build section                :report:section:
+
+#+name: meta_emitters_book_index_report_section
+#+BEGIN_SRC d
+  auto bookindex_build_abstraction_section(BI,N,B)(
+    BI bookindex_unordered_hashes,
+    N  obj_cite_number,
+    B  opt_action,
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(bookindex_unordered_hashes)                == string[][string][string]));
+      static assert(is(typeof(obj_cite_number)                           == int));
+      static assert(is(typeof(opt_action)                                == bool[string]));
+    }
+    mixin SiSUnode;
+    mixin InternalMarkup;
+    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().release;
+    ObjGenericComposite[][string] bookindex_section;
+    ObjGenericComposite comp_obj_heading_, comp_obj_para;
+    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_seg, bi_tmp_scroll;
+      string[] bi_tmp_tags;
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Book Index";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "_part_book_index";
+      comp_obj_heading_.marked_up_level       = "B";
+      comp_obj_heading_.heading_lev_markup    = 1;
+      comp_obj_heading_.heading_lev_collapsed = 1;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      comp_obj_heading.inline_links           = true;
+      bookindex_section["scroll"]             ~= comp_obj_heading_;
+      bookindex_section["seg"]                ~= comp_obj_heading_;
+      ++obj_cite_number;
+      ++mkn;
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Index";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "bookindex";
+      comp_obj_heading_.marked_up_level       = "1";
+      comp_obj_heading_.heading_lev_markup    = 4;
+      comp_obj_heading_.heading_lev_collapsed = 2;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      comp_obj_heading.inline_links           = false;
+      comp_obj_heading_.anchor_tags           = ["bookindex"];
+      bookindex_section["scroll"]             ~= comp_obj_heading_;
+      bookindex_section["seg"]                ~= comp_obj_heading_;
+      ++obj_cite_number;
+      ++mkn;
+      import std.array : appender;
+      auto buffer = appender!(char[])();
+      string[dchar] transTable = [' ' : "_"];
+      foreach (mainkey; mainkeys) {
+        bi_tmp_tags = [""];
+        bi_tmp_scroll = "!{" ~ mainkey ~ "}! ";
+        buffer.clear();
+        bi_tmp_tags ~= translate(mainkey, transTable);
+        bi_tmp_seg = "!{" ~ mainkey ~ "}! ";
+        auto bkidx_lnk_seg(string locs) {
+          string markup = "";
+          if (auto m = locs.matchFirst(rgx.book_index_go_seg)) {
+            markup =
+              munge.url_links("{ " ~ m["link"] ~ " }"
+              ~ mkup.mark_internal_site_lnk ~ m["seg"] ~ ".fnSuffix"
+              ~ "#" ~ m["ocn"] ~ ", ");
+          } else {
+            writeln(__LINE__, ": ", locs);
+          }
+          return markup;
+        }
+        auto bkidx_lnk_scroll(string locs) {
+          string markup = "";
+          if (auto m = locs.matchFirst(rgx.book_index_go)) {
+            markup =
+              munge.url_links("{ " ~ m["link"] ~ " }"
+              ~ mkup.mark_internal_site_lnk
+              ~ "#" ~ m["ocn"] ~ ", ");
+          } else {
+            writeln(__LINE__, ": ", locs);
+          }
+          return markup;
+        }
+        foreach (ref_; bookindex_unordered_hashes[mainkey]["_a"]) {
+          bi_tmp_scroll ~= bkidx_lnk_scroll(ref_);
+          bi_tmp_seg ~= bkidx_lnk_seg(ref_);
+        }
+        bi_tmp_scroll ~= " \\\\\n    ";
+        bi_tmp_seg ~= " \\\\\n    ";
+        bookindex_unordered_hashes[mainkey].remove("_a");
+        auto subkeys =
+          bookindex_unordered_hashes[mainkey].byKey.array.sort().release;
+        foreach (subkey; subkeys) {
+          bi_tmp_scroll ~= subkey ~ ", ";
+          buffer.clear();
+          bi_tmp_tags ~= translate(subkey, transTable);
+          bi_tmp_seg ~= subkey ~ ", ";
+          foreach (ref_; bookindex_unordered_hashes[mainkey][subkey]) {
+            bi_tmp_scroll ~= bkidx_lnk_scroll(ref_);
+            bi_tmp_seg ~= bkidx_lnk_seg(ref_);
+          }
+          bi_tmp_scroll ~= " \\\\\n    ";
+          bi_tmp_seg ~= " \\\\\n    ";
+          ++skn;
+        }
+        bi_tmp_scroll                       = (bi_tmp_scroll).replaceFirst(rgx.trailing_linebreak, "");
+        bi_tmp_seg                          = (bi_tmp_seg).replaceFirst(rgx.trailing_linebreak, "");
+        comp_obj_para                       = comp_obj_para.init;
+        comp_obj_para.use                   = "backmatter";
+        comp_obj_para.is_of                 = "para";
+        comp_obj_para.is_a                  = "bookindex";
+        comp_obj_para.text                  = bi_tmp_scroll.to!string.strip;
+        comp_obj_para.ocn                   = obj_cite_number;
+        comp_obj_para.obj_cite_number       = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+        comp_obj_para.anchor_tags           = bi_tmp_tags;
+        comp_obj_para.indent_hang           = 0;
+        comp_obj_para.indent_base           = 1;
+        comp_obj_para.bullet                = false;
+        comp_obj_para.inline_links          = true;
+        bookindex_section["scroll"]         ~= comp_obj_para;
+        comp_obj_para.text                  = bi_tmp_seg.to!string.strip;
+        bookindex_section["seg"]            ~= comp_obj_para;
+        ++obj_cite_number;
+        ++mkn;
+      }
+    } else {                              // no book index, (figure out what to do here)
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.text                  = "(skip) there is no Book Index";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.marked_up_level       = "B";
+      comp_obj_heading_.heading_lev_markup    = 1;
+      comp_obj_heading_.heading_lev_collapsed = 1;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      bookindex_section["scroll"]             ~= comp_obj_heading_;
+      bookindex_section["seg"]                ~= comp_obj_heading_;
+    }
+    auto t = tuple(bookindex_section, obj_cite_number);
+    return t;
+  }
+#+END_SRC
+
+****** }
+
+#+name: meta_emitters_book_index_report_section
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+**** (end)notes section                                 :endnotes:section:
+
+#+name: meta_emitters_endnotes
+#+BEGIN_SRC d
+struct NotesSection {
+  string[string] object_notes;
+  int previous_count;
+  int mkn;
+  auto rgx = Rgx();
+#+END_SRC
+
+***** { gather notes for endnote section struct open
+
+#+name: meta_emitters_endnotes
+#+BEGIN_SRC d
+  private auto gather_notes_for_endnote_section(
+    ObjGenericComposite[] contents_am,
+    string                segment_anchor_tag_that_object_belongs_to,
+    int                   cntr,
+  )
+  in {
+    assert((contents_am[cntr].is_a == "para")
+    || (contents_am[cntr].is_a == "heading")
+    || (contents_am[cntr].is_a == "quote")
+    || (contents_am[cntr].is_a == "group")
+    || (contents_am[cntr].is_a == "block")
+    || (contents_am[cntr].is_a == "verse"));
+    assert(cntr >= previous_count);
+    previous_count=cntr;
+    assert(
+      (contents_am[cntr].text).match(
+      rgx.inline_notes_delimiter_al_regular_number_note)
+    );
+  }
+  body {
+    mixin InternalMarkup;
+    auto mkup = InlineMarkup();
+    auto munge = ObjInlineMarkupMunge();
+    foreach(
+      m;
+      (contents_am[cntr].text).matchAll(
+        rgx.inline_notes_delimiter_al_regular_number_note
+      )
+    ) {
+      debug(endnotes_build) {
+        writeln(
+          "{^{", m.captures[1], ".}^}"
+          ~ mkup.mark_internal_site_lnk,
+          segment_anchor_tag_that_object_belongs_to,
+            ".fnSuffix#noteref_\n  ", m.captures[1], " ",
+          m.captures[2]); // sometimes need segment name (segmented html & epub)
+      }
+      // TODO NEXT you need anchor for segments at this point ->
+      object_notes["anchor"] ~= "note_" ~ m.captures[1] ~ "』";
+      object_notes["notes"] ~= (segment_anchor_tag_that_object_belongs_to.empty)
+      ? (munge.url_links(
+          "{^{" ~ m.captures[1] ~ ".}^}#noteref_"
+          ~ m.captures[1]) ~ " "
+          ~ m.captures[2] ~ "』"
+        )
+      : (munge.url_links(
+          "{^{" ~ m.captures[1] ~ ".}^}"
+           ~ mkup.mark_internal_site_lnk
+           ~ segment_anchor_tag_that_object_belongs_to
+           ~ ".fnSuffix#noteref_"
+           ~ m.captures[1]) ~ " "
+           ~ m.captures[2] ~ "』"
+        );
+    }
+    return object_notes;
+  }
+#+END_SRC
+
+***** gathered notes
+
+#+name: meta_emitters_endnotes
+#+BEGIN_SRC d
+  private auto gathered_notes()
+  in {
+  }
+  body {
+    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_;
+  }
+#+END_SRC
+
+***** endnote objects
+
+#+name: meta_emitters_endnotes
+#+BEGIN_SRC d
+  private auto endnote_objects(
+    int            obj_cite_number,
+    bool[string]   opt_action,
+  )
+  in {
+  }
+  body {
+    mixin SiSUnode;
+    ObjGenericComposite[] the_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_heading_;
+    if ((endnotes_["notes"].length > 0)
+    && (opt_action["backmatter"] && opt_action["section_endnotes"])) {
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Endnotes";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "_part_endnotes";
+      comp_obj_heading_.marked_up_level       = "B";
+      comp_obj_heading_.heading_lev_markup    = 1;
+      comp_obj_heading_.heading_lev_collapsed = 1;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      the_endnotes_section                    ~= comp_obj_heading_;
+      ++obj_cite_number;
+      ++mkn;
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "backmatter";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "Endnotes";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.segment_anchor_tag    = "endnotes";
+      comp_obj_heading_.marked_up_level       = "1";
+      comp_obj_heading_.heading_lev_markup    = 4;
+      comp_obj_heading_.heading_lev_collapsed = 2;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      comp_obj_heading_.anchor_tags           = ["endnotes"];
+      the_endnotes_section                    ~= comp_obj_heading_;
+      ++obj_cite_number;
+      ++mkn;
+    } else {
+      comp_obj_heading_                       = comp_obj_heading_.init;
+      comp_obj_heading_.use                   = "empty";
+      comp_obj_heading_.is_of                 = "para";
+      comp_obj_heading_.is_a                  = "heading";
+      comp_obj_heading_.text                  = "(skip) there are no Endnotes";
+      comp_obj_heading_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_heading_.marked_up_level       = "B";
+      comp_obj_heading_.heading_lev_markup    = 1;
+      comp_obj_heading_.heading_lev_collapsed = 1;
+      comp_obj_heading_.parent_ocn            = 1;
+      comp_obj_heading_.parent_lev_markup     = 0;
+      the_endnotes_section                    ~= comp_obj_heading_;
+    }
+    if (opt_action["backmatter"] && opt_action["section_endnotes"]) {
+      ObjGenericComposite comp_obj_endnote_;
+      comp_obj_endnote_                       = comp_obj_endnote_.init;
+      comp_obj_endnote_.use                   = "backmatter";
+      comp_obj_endnote_.is_of                 = "para";
+      comp_obj_endnote_.is_a                  = "endnote";
+      comp_obj_endnote_.ocn                   = 0;
+      comp_obj_heading_.obj_cite_number       = "";
+      comp_obj_endnote_.indent_hang           = 0;
+      comp_obj_endnote_.indent_base           = 0;
+      comp_obj_endnote_.bullet                = false;
+      foreach (i, endnote; endnotes_["notes"]) {
+        auto     m                            = endnote.matchFirst(rgx.note_ref);
+        string   notenumber                   = m.captures[1].to!string;
+        string   anchor_tag                   = "note_" ~ notenumber;
+        comp_obj_endnote_.anchor_tags         = [ endnotes_["anchor"][i] ];
+        comp_obj_endnote_.inline_links        = true;
+        comp_obj_endnote_.text                = endnote.strip;
+        the_endnotes_section                  ~= comp_obj_endnote_;
+      }
+    }
+    auto t = tuple(the_endnotes_section, obj_cite_number);
+    return t;
+  }
+#+END_SRC
+
+***** }
+
+#+name: meta_emitters_endnotes
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+**** bibliography                                           :bibliography:
+***** { biblio struct
+
+#+name: meta_emitters_bibliography
+#+BEGIN_SRC d
+struct Bibliography {
+#+END_SRC
+
+***** biblio
+
+#+name: meta_emitters_bibliography
+#+BEGIN_SRC d
+  public JSONValue[] _bibliography_(Bi,BJ)(
+    return ref Bi biblio_unsorted_incomplete,
+    return ref BJ bib_arr_json
+  )
+  in {
+    debug(asserts) {
+      static assert(is(typeof(biblio_unsorted_incomplete) == string[]));
+      static assert(is(typeof(bib_arr_json)               == JSONValue[]));
+    }
+ }
+  body {
+    JSONValue[] biblio_unsorted =
+      _biblio_unsorted_complete_(biblio_unsorted_incomplete, bib_arr_json);
+    biblio_arr_json = [];
+    biblio_unsorted_incomplete = [];
+    JSONValue[] biblio_sorted__ = biblio_sort(biblio_unsorted);
+    biblio_debug(biblio_sorted__);
+    debug(biblio0) {
+      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++;
+      }
+    }
+    return biblio_sorted__;
+  }
+#+END_SRC
+
+***** biblio unsorted complete
+
+#+name: meta_emitters_bibliography
+#+BEGIN_SRC d
+  final private JSONValue[] _biblio_unsorted_complete_(Bi,BJ)(
+    Bi            biblio_unordered,
+    return ref BJ bib_arr_json
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(biblio_unordered) == string[]));
+      static assert(is(typeof(bib_arr_json)     == JSONValue[]));
+    }
+    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;
+    }
+    JSONValue[] biblio_unsorted_array_of_json_objects =
+      bib_arr_json.dup;
+      destroy(bib_arr_json);
+    return biblio_unsorted_array_of_json_objects;
+  }
+#+END_SRC
+
+***** biblio sort
+
+#+name: meta_emitters_bibliography
+#+BEGIN_SRC d
+  final private JSONValue[] biblio_sort(BJ)(BJ biblio_unordered) {
+    debug(asserts) {
+      static assert(is(typeof(biblio_unordered) == JSONValue[]));
+    }
+    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_;
+  }
+#+END_SRC
+
+***** biblio debug
+
+#+name: meta_emitters_bibliography
+#+BEGIN_SRC d
+  void biblio_debug(BJ)(BJ biblio_sorted) {
+    debug(asserts) {
+      static assert(is(typeof(biblio_sorted) == JSONValue[]));
+    }
+    debug(biblio0) {
+      foreach (j; biblio_sorted) {
+        if (!empty(j["fulltitle"].str)) {
+          writeln(j["sortby_deemed_author_year_title"]);
+        }
+      }
+    }
+  }
+#+END_SRC
+
+***** }
+
+#+name: meta_emitters_bibliography
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+**** node structure metadata                     :structure:metadata:node:
+***** { metadata node struct
+
+#+name: meta_emitters_metadata
+#+BEGIN_SRC d
+struct NodeStructureMetadata {
+  int lv, lv0, lv1, lv2, lv3, lv4, lv5, lv6, lv7;
+  int obj_cite_number;
+  int[string] p_; // p_ parent_
+  auto rgx = Rgx();
+#+END_SRC
+
+***** node metadata emitter
+
+#+name: meta_emitters_metadata
+#+BEGIN_SRC d
+  ObjGenericComposite node_location_emitter(Lv,Ta,N,C,P,I)(
+    Lv lev_markup_number,
+    Ta segment_anchor_tag,
+    N  obj_cite_number_,
+    C  cntr_,
+    P  ptr_,
+    I  is_
+  )
+  in {
+    debug(asserts) {
+      static assert(is(typeof(lev_markup_number)  == string));
+      static assert(is(typeof(segment_anchor_tag) == string));
+      static assert(is(typeof(obj_cite_number_)   == int));
+      static assert(is(typeof(cntr_)              == int));
+      static assert(is(typeof(ptr_)               == int));
+      static assert(is(typeof(is_)                == string));
+    }
+    assert(is_ != "heading");
+    assert(obj_cite_number_.to!int >= 0);
+  }
+  body {
+    assert(is_ != "heading"); // should not be necessary
+    assert(obj_cite_number_.to!int >= 0); // should not be necessary
+    int obj_cite_number = obj_cite_number_.to!int;
+    if (lv7 > State.off) {
+      p_["lev_markup_number"] = DocStructMarkupHeading.h_text_4;
+      p_["obj_cite_number"] = lv7;
+    } else if (lv6 > State.off) {
+      p_["lev_markup_number"] = DocStructMarkupHeading.h_text_3;
+      p_["obj_cite_number"] = lv6;
+    } else if (lv5 > State.off) {
+      p_["lev_markup_number"] = DocStructMarkupHeading.h_text_2;
+      p_["obj_cite_number"] = lv5;
+    } else {
+      p_["lev_markup_number"] = DocStructMarkupHeading.h_text_1;
+      p_["obj_cite_number"] = lv4;
+    }
+    ObjGenericComposite comp_obj_location;
+    comp_obj_location                       = comp_obj_location.init;
+    comp_obj_location.is_a                  = is_;
+    comp_obj_location.ocn                   = obj_cite_number_;
+    comp_obj_location.segment_anchor_tag    = segment_anchor_tag.to!string;
+    comp_obj_location.parent_ocn            = p_["obj_cite_number"];
+    comp_obj_location.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.parent_lev_markup >= 4);
+    assert(comp_obj_location.parent_lev_markup <= 7);
+    assert(comp_obj_location.parent_ocn >= 0);
+    return comp_obj_location;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+***** node metadata emitter heading, (including most segnames & their pointers)
+
+#+name: meta_emitters_metadata
+#+BEGIN_SRC d
+  ObjGenericComposite node_emitter_heading(T,L,Lm,Lc,Ta,N,C,P,LA,I,PSn,fNr,fNs,fL)(
+    T   _text,
+    L   lev,
+    Lm  lev_markup_number,
+    Lc  lev_collapsed_number,
+    Ta  segment_anchor_tag,
+    N   obj_cite_number_,
+    C   cntr_,
+    P   ptr_,
+    LA  lv_ancestors_txt,
+    I   is_,
+    PSn html_segnames_ptr,
+    fNr flag_notes_reg,
+    fNs flag_notes_star,
+    fL  flag_links,
+  )
+  in {
+    debug(asserts) {
+      static assert(is(typeof(_text)                == string));
+      static assert(is(typeof(lev)                  == string));
+      static assert(is(typeof(lev_markup_number)    == string));
+      static assert(is(typeof(lev_collapsed_number) == string));
+      static assert(is(typeof(segment_anchor_tag)   == string));
+      static assert(is(typeof(obj_cite_number_)     == int));
+      static assert(is(typeof(cntr_)                == int));
+      static assert(is(typeof(ptr_)                 == int));
+      static assert(is(typeof(lv_ancestors_txt)     == string[]));
+      static assert(is(typeof(is_)                  == string));
+      static assert(is(typeof(html_segnames_ptr)    == int));
+    }
+    assert(is_ == "heading");
+    assert(to!int(obj_cite_number_) >= 0);
+    assert(
+      lev_markup_number.match(rgx.levels_numbered),
+      ("not a valid heading level: " ~ lev_markup_number ~ " at " ~ obj_cite_number_.to!string)
+    );
+    if (lev_markup_number.match(rgx.levels_numbered)) {
+      if (lev_markup_number.to!int == 0) {
+        assert(obj_cite_number_.to!int == 1);
+      }
+    }
+  }
+  body {
+    int obj_cite_number = obj_cite_number_.to!int;
+    switch (lev_markup_number.to!int) {
+    case 0:
+      lv = DocStructMarkupHeading.h_sect_A;
+      lv0 = obj_cite_number;
+      lv1=0; lv2=0; lv3=0; lv4=0; lv5=0; lv6=0; lv7=0;
+      p_["lev_markup_number"] = 0;
+      p_["obj_cite_number"] = 0;
+      break;
+    case 1:
+      lv = DocStructMarkupHeading.h_sect_B;
+      lv1 = obj_cite_number;
+      lv2=0; lv3=0; lv4=0; lv5=0; lv6=0; lv7=0;
+      p_["lev_markup_number"] =
+        DocStructMarkupHeading.h_sect_A;
+      p_["obj_cite_number"] = lv0;
+      break;
+    case 2:
+      lv = DocStructMarkupHeading.h_sect_C;
+      lv2 = obj_cite_number;
+      lv3=0; lv4=0; lv5=0; lv6=0; lv7=0;
+      p_["lev_markup_number"] =
+        DocStructMarkupHeading.h_sect_B;
+      p_["obj_cite_number"] = lv1;
+      break;
+    case 3:
+      lv = DocStructMarkupHeading.h_sect_D;
+      lv3=obj_cite_number;
+      lv4=0; lv5=0; lv6=0; lv7=0;
+      p_["lev_markup_number"] =
+        DocStructMarkupHeading.h_sect_C;
+      p_["obj_cite_number"] = lv2;
+      break;
+    case 4:
+      lv = DocStructMarkupHeading.h_text_1;
+      lv4 = obj_cite_number;
+      lv5=0; lv6=0; lv7=0;
+      if (lv3 > State.off) {
+        p_["lev_markup_number"] =
+          DocStructMarkupHeading.h_sect_D;
+        p_["obj_cite_number"] = lv3;
+      } else if (lv2 > State.off) {
+        p_["lev_markup_number"] =
+          DocStructMarkupHeading.h_sect_C;
+        p_["obj_cite_number"] = lv2;
+      } else if (lv1 > State.off) {
+        p_["lev_markup_number"] =
+          DocStructMarkupHeading.h_sect_B;
+        p_["obj_cite_number"] = lv1;
+      } else {
+        p_["lev_markup_number"] =
+          DocStructMarkupHeading.h_sect_A;
+        p_["obj_cite_number"] = lv0;
+      }
+      break;
+    case 5:
+      lv = DocStructMarkupHeading.h_text_2;
+      lv5 = obj_cite_number;
+      lv6=0; lv7=0;
+      p_["lev_markup_number"] =
+        DocStructMarkupHeading.h_text_1;
+      p_["obj_cite_number"] = lv4;
+      break;
+    case 6:
+      lv = DocStructMarkupHeading.h_text_3;
+      lv6 = obj_cite_number;
+      lv7=0;
+      p_["lev_markup_number"] =
+        DocStructMarkupHeading.h_text_2;
+      p_["obj_cite_number"] = lv5;
+      break;
+    case 7:
+      lv = DocStructMarkupHeading.h_text_4;
+      lv7 = obj_cite_number;
+      p_["lev_markup_number"] =
+        DocStructMarkupHeading.h_text_3;
+      p_["obj_cite_number"] = lv6;
+      break;
+    default:
+      break;
+    }
+    ObjGenericComposite _comp_obj_heading_;
+    _comp_obj_heading_                           = _comp_obj_heading_.init;
+    _comp_obj_heading_.use                       = "body";
+    _comp_obj_heading_.is_of                     = "para";
+    _comp_obj_heading_.is_a                      = "heading";
+    _comp_obj_heading_.text                      = _text.to!string.strip;
+    _comp_obj_heading_.ocn                       = obj_cite_number_;
+    _comp_obj_heading_.obj_cite_number           = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    _comp_obj_heading_.segment_anchor_tag        = segment_anchor_tag.to!string;
+    _comp_obj_heading_.marked_up_level           = lev;
+    _comp_obj_heading_.heading_lev_markup        = (!(lev_markup_number.empty) ? lev_markup_number.to!int : 0);
+    _comp_obj_heading_.heading_lev_collapsed     = (!(lev_collapsed_number.empty) ? lev_collapsed_number.to!int : 0);
+    _comp_obj_heading_.parent_ocn                = p_["obj_cite_number"];
+    _comp_obj_heading_.parent_lev_markup         = p_["lev_markup_number"];
+    _comp_obj_heading_.heading_ancestors_text    = lv_ancestors_txt;
+    _comp_obj_heading_.ptr_doc_object            = cntr_;
+    _comp_obj_heading_.ptr_html_segnames         = ((lev_markup_number == "4") ? html_segnames_ptr : 0);
+    _comp_obj_heading_.ptr_heading               = ptr_;
+    _comp_obj_heading_.inline_notes_reg          = flag_notes_reg;
+    _comp_obj_heading_.inline_notes_star         = flag_notes_star;
+    _comp_obj_heading_.inline_links              = flag_links;
+    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_heading_.parent_lev_markup <= 7);
+    assert(_comp_obj_heading_.parent_ocn >= 0);
+    if (lev_markup_number.match(rgx.levels_numbered_headings)) {
+      assert(_comp_obj_heading_.heading_lev_markup <= 7);
+      assert(_comp_obj_heading_.ocn >= 0);
+      if (_comp_obj_heading_.parent_lev_markup > 0) {
+        assert(_comp_obj_heading_.parent_lev_markup < _comp_obj_heading_.heading_lev_markup);
+        if (_comp_obj_heading_.ocn != 0) {
+          assert(_comp_obj_heading_.parent_ocn < _comp_obj_heading_.ocn);
+        }
+      }
+      if (_comp_obj_heading_.heading_lev_markup == 0) {
+        assert(_comp_obj_heading_.parent_lev_markup == DocStructMarkupHeading.h_sect_A);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_sect_B) {
+        assert(_comp_obj_heading_.parent_lev_markup == DocStructMarkupHeading.h_sect_A);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_sect_C) {
+        assert(_comp_obj_heading_.parent_lev_markup == DocStructMarkupHeading.h_sect_B);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_sect_D) {
+        assert(_comp_obj_heading_.parent_lev_markup == DocStructMarkupHeading.h_sect_C);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_text_1) {
+        assert(_comp_obj_heading_.parent_lev_markup <= DocStructMarkupHeading.h_sect_D);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_text_2) {
+        assert(_comp_obj_heading_.parent_lev_markup == DocStructMarkupHeading.h_text_1);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_text_3) {
+        assert(_comp_obj_heading_.parent_lev_markup == DocStructMarkupHeading.h_text_2);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_text_4) {
+        assert(_comp_obj_heading_.parent_lev_markup == DocStructMarkupHeading.h_text_3);
+      } else if  (_comp_obj_heading_.heading_lev_markup == DocStructMarkupHeading.h_text_5) {
+      }
+    }
+    return _comp_obj_heading_;
+  }
+  invariant() {
+  }
+#+END_SRC
+
+***** }
+
+#+name: meta_emitters_metadata
+#+BEGIN_SRC d
+}
+#+END_SRC
+
+*** function assertions                                        :assertions:
+**** assertions on markup document structure               :doc_structure:
+
+#+name: abs_functions_assertions
+#+BEGIN_SRC d
+auto assertions_doc_structure(O,Lv)(
+  O  an_object,
+  Lv lv
+) {
+  debug(asserts) {
+    static assert(is(typeof(an_object) == string[string]));
+    static assert(is(typeof(lv)        == int[string]));
+  }
+  if (lv["h3"] > State.off) {
+    assert(lv["h0"] > State.off);
+    assert(lv["h1"] > State.off);
+    assert(lv["h2"] > State.off);
+  } else if (lv["h2"] > State.off) {
+    assert(lv["h0"] > State.off);
+    assert(lv["h1"] > State.off);
+    assert(lv["h3"] == State.off);
+  } else if (lv["h1"] > State.off) {
+    assert(lv["h0"] > State.off);
+    assert(lv["h2"] == State.off);
+    assert(lv["h3"] == State.off);
+  } else if (lv["h0"] > State.off) {
+    assert(lv["h1"] == State.off);
+    assert(lv["h2"] == State.off);
+    assert(lv["h3"] == State.off);
+  } else {
+    assert(lv["h0"] == State.off);
+    assert(lv["h1"] == State.off);
+    assert(lv["h2"] == State.off);
+    assert(lv["h3"] == State.off);
+  }
+  if (lv["h7"] > State.off) {
+    assert(lv["h4"] > State.off);
+    assert(lv["h5"] > State.off);
+    assert(lv["h6"] > State.off);
+  } else if (lv["h6"] > State.off) {
+    assert(lv["h4"] > State.off);
+    assert(lv["h5"] > State.off);
+    assert(lv["h7"] == State.off);
+  } else if (lv["h5"] > State.off) {
+    assert(lv["h4"] > State.off);
+    assert(lv["h6"] == State.off);
+    assert(lv["h7"] == State.off);
+  } else if (lv["h4"] > State.off) {
+    assert(lv["h5"] == State.off);
+    assert(lv["h6"] == State.off);
+    assert(lv["h7"] == State.off);
+  } else {
+    assert(lv["h4"] == State.off);
+    assert(lv["h5"] == State.off);
+    assert(lv["h6"] == State.off);
+    assert(lv["h7"] == State.off);
+  }
+  if (lv["h0"] == State.off) {
+    assert(lv["h1"] == State.off);
+    assert(lv["h2"] == State.off);
+    assert(lv["h3"] == State.off);
+    assert(lv["h4"] == State.off);
+    assert(lv["h5"] == State.off);
+    assert(lv["h6"] == State.off);
+    assert(lv["h7"] == State.off);
+  }
+  if (lv["h1"] == State.off) {
+    assert(lv["h2"] == State.off);
+    assert(lv["h3"] == State.off);
+  }
+  if (lv["h2"] == State.off) {
+    assert(lv["h3"] == State.off);
+  }
+  if (lv["h3"] == State.off) {
+  }
+  if (lv["h4"] == State.off) {
+    assert(lv["h5"] == State.off);
+    assert(lv["h6"] == State.off);
+    assert(lv["h7"] == State.off);
+  }
+  if (lv["h5"] == State.off) {
+    assert(lv["h6"] == State.off);
+    assert(lv["h7"] == State.off);
+  }
+  if (lv["h6"] == State.off) {
+    assert(lv["h7"] == State.off);
+  }
+  if (lv["h7"] == State.off) {
+  }
+  switch ((an_object["lev"]).to!string) {
+  case "A":
+    if (lv["h0"] == State.off) {
+      assert(lv["h1"] == State.off);
+      assert(lv["h2"] == State.off);
+      assert(lv["h3"] == State.off);
+      assert(lv["h4"] == State.off);
+      assert(lv["h5"] == State.off);
+      assert(lv["h6"] == State.off);
+      assert(lv["h7"] == State.off);
+    } else {                       // (lv["h0"] > State.off)
+      assert(lv["h0"] == State.off,"error should not enter level A a second time");
+    }
+    break;
+  case "B":
+    if (lv["h1"] == State.off) {
+      assert(lv["h0"] > State.off);
+      assert(lv["h2"] == State.off);
+      assert(lv["h3"] == State.off);
+    } else {                       // (lv["h1"] > State.off)
+      assert(lv["h0"] > State.off);
+      assert(lv["h1"] > State.off);
+    }
+    break;
+  case "C":
+    if (lv["h2"] == State.off) {
+      assert(lv["h0"] > State.off);
+      assert(lv["h1"] > State.off);
+      assert(lv["h3"] == State.off);
+    } else {                       // (lv["h2"] > State.off)
+      assert(lv["h0"] > State.off);
+      assert(lv["h1"] > State.off);
+      assert(lv["h2"] > State.off);
+    }
+    break;
+  case "D":
+    if (lv["h3"] == State.off) {
+      assert(lv["h0"] > State.off);
+      assert(lv["h1"] > State.off);
+      assert(lv["h2"] > State.off);
+    } else {                      // (lv["h3"] > State.off)
+      assert(lv["h0"] > State.off);
+      assert(lv["h1"] > State.off);
+      assert(lv["h2"] > State.off);
+      assert(lv["h3"] > State.off);
+    }
+    break;
+  case "1":
+    if (lv["h4"] == State.off) {
+      assert(lv["h0"] > State.off);
+    } else {                      // (lv["h4"] > State.off)
+      assert(lv["h0"] > State.off);
+      assert(lv["h4"] > State.off);
+    }
+    break;
+  case "2":
+    if (lv["h5"] == State.off) {
+      assert(lv["h0"] > State.off);
+      assert(lv["h4"] > State.off);
+    } else {                      // (lv["h5"] > State.off)
+      assert(lv["h0"] > State.off);
+      assert(lv["h4"] > State.off);
+      assert(lv["h5"] > State.off);
+    }
+    break;
+  case "3":
+    if (lv["h6"] == State.off) {
+      assert(lv["h0"] > State.off);
+      assert(lv["h4"] > State.off);
+      assert(lv["h5"] > State.off);
+    } else {                      // (lv["h6"] > State.off)
+      assert(lv["h0"] > State.off);
+      assert(lv["h4"] > State.off);
+      assert(lv["h5"] > State.off);
+      assert(lv["h6"] > State.off);
+    }
+    break;
+  case "4":
+    if (lv["h7"] == State.off) {
+      assert(lv["h0"] > State.off);
+      assert(lv["h4"] > State.off);
+      assert(lv["h5"] > State.off);
+      assert(lv["h6"] > State.off);
+    } else {                      // (lv["h7"] > State.off)
+      assert(lv["h0"] > State.off);
+      assert(lv["h4"] > State.off);
+      assert(lv["h5"] > State.off);
+      assert(lv["h6"] > State.off);
+      assert(lv["h7"] > State.off);
+    }
+    break;
+  default:
+    break;
+  }
+}
+#+END_SRC
+
+**** assertions on blocks                                         :blocks:
+
+#+name: abs_functions_assertions
+#+BEGIN_SRC d
+auto assertions_flag_types_block_status_none_or_closed(T)(T type) {
+  debug(asserts) {
+    static assert(is(typeof(type) == int[string]));
+  }
+  assert(
+    (type["code"] == TriState.off)
+    || (type["code"] == TriState.closing),
+    "code block status: off or closing");
+  assert(
+    (type["poem"] == TriState.off)
+    || (type["poem"] == TriState.closing),
+    "poem status: off or closing");
+  assert(
+    (type["table"] == TriState.off)
+    || (type["table"] == TriState.closing),
+    "table status: off or closing");
+  assert(
+    (type["group"] == TriState.off)
+    || (type["group"] == TriState.closing),
+    "group block status: off or closing");
+  assert(
+    (type["block"] == TriState.off)
+    || (type["block"] == TriState.closing),
+    "block status: off or closing");
+}
+#+END_SRC
+
+*** doc sect keys seq
+
+#+name: template_doc_sect_keys_seq
+#+BEGIN_SRC d
+template docSectKeysSeq() {
+  auto docSectKeysSeq(string[][string] document_section_keys_sequenced) {
+    struct doc_sect_keys_seq {
+      auto seg() {
+        return document_section_keys_sequenced["seg"];
+      }
+      auto scroll() {
+        return document_section_keys_sequenced["scroll"];
+      }
+      auto sql() {
+        return document_section_keys_sequenced["sql"];
+      }
+    }
+    return doc_sect_keys_seq();
+  }
+}
+#+END_SRC
+
+* 2. Object Setter (Set Abstract Object)        :module:sdp:meta_object_setter:
+
+set abstracted objects for downstream processing
+
+** 0. module template
+
+#+BEGIN_SRC d :tangle ../src/sdp/meta/object_setter.d
+/++
+  object setter:
+  setting of sisu objects for downstream processing
+  meta_object_setter.d
++/
+module sdp.meta.object_setter;
+template ObjectSetter() {
+  /+ structs +/
+  <<meta_structs_init>>
+}
+#+END_SRC
+
+** 1. initialize structs                                            :struct:
+*** heading attribute
+
+#+name: meta_structs_init
+#+BEGIN_SRC d
+struct HeadingAttrib {
+  string lev                            = "9";
+  int    heading_lev_markup             = 9;
+  int    heading_lev_collapsed          = 9;
+  int[]  closes_lev_collapsed           = [];
+  int[]  closes_lev_markup              = [];
+  int    array_ptr                      = 0;
+  int    heading_array_ptr_segments     = 0;
+}
+#+END_SRC
+
+*** [#A] _composite object_
+
+#+name: meta_structs_init
+#+BEGIN_SRC d
+struct ObjGenericComposite {
+  // size_t id;
+  string                 use                          = "";
+  string                 is_of                        = "";
+  string                 is_a                         = "";
+  string                 text                         = "";
+  string                 obj_cite_number              = "";
+  string[]               anchor_tags                  = [];
+  int                    indent_base                  = 0;
+  int                    indent_hang                  = 0;
+  bool                   bullet                       = false;
+  bool                   inline_links                 = false;
+  bool                   inline_notes_reg             = false;
+  bool                   inline_notes_star            = false;
+  string                 language                     = ""; // not implemented, consider
+  string                 code_block_syntax            = "";
+  int                    table_number_of_columns      = 0;
+  double[]               table_column_widths          = [];
+  string[]               table_column_aligns          = [];
+  bool                   table_heading                = false;
+  bool                   table_walls                  = false; // not implemented
+  int                    ocn                          = 0;
+  string                 segment_anchor_tag           = "";
+  string                 segname_prev                 = "";
+  string                 segname_next                 = "";
+  int                    parent_lev_markup            = 0;
+  int                    parent_ocn                   = 0;
+  int[]                  ancestors                    = [];
+  string                 marked_up_level              = "9";
+  int                    heading_lev_markup           = 9;
+  int                    heading_lev_collapsed        = 9;
+  int[]                  dom_markedup                 = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+  int[]                  dom_collapsed                = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+  int[]                  heading_ancestors            = [ 0, 0, 0, 0, 0, 0, 0, 0,];
+  string[]               heading_ancestors_text       = [ "", "", "", "", "", "", "", "", ];
+  string[]               lev4_subtoc                  = [];
+  int                    heading_array_ptr            = 0;
+  int                    ptr_doc_object               = 0;
+  int                    ptr_html_segnames            = 0;
+  int                    ptr_heading                  = 0;
+  int                    array_ptr                    = 0;
+  int                    heading_array_ptr_segments   = 0;
+  string[string][string] node;
+}
+#+END_SRC
+
+*** The Objects: generic composite object array
+
+#+name: meta_structs_init
+#+BEGIN_SRC d
+struct TheObjects {
+  ObjGenericComposite[] oca;
+}
+#+END_SRC