doc object metainfo consolidation

1 files changed, 142 insertions, 142 deletions

diff --git a/org/output_xmls.org b/org/output_xmls.org
index 894f329..3742975 100644
--- a/org/output_xmls.org
+++ b/org/output_xmls.org
@@ -107,7 +107,7 @@ string special_characters(O)(
     .replaceAll(rgx.xhtml_less_than,    "<")
     .replaceAll(rgx.xhtml_greater_than, ">")
     .replaceAll(rgx.nbsp_char,          " ");
-  if (!(obj.typeinfo.is_a == "code")) {
+  if (!(obj.metainfo.is_a == "code")) {
     _txt = (_txt)
       .replaceAll(rgx.xhtml_line_break,   "<br />");
   }
@@ -478,7 +478,7 @@ auto inline_links(O)(
       writeln(__LINE__,
         " (missed) markup link identified (",
         obj.has.inline_links,
-        "): ", obj.typeinfo.is_a, ": ",
+        "): ", obj.metainfo.is_a, ": ",
         obj.text
       );
     }
@@ -488,7 +488,7 @@ auto inline_links(O)(
       writeln(__LINE__,
         " (missed) markup link identified (",
         obj.has.inline_links,
-        "): ", obj.typeinfo.is_a, ": ",
+        "): ", obj.metainfo.is_a, ": ",
         obj.text
       );
     }
@@ -514,12 +514,12 @@ auto inline_notes_scroll(O)(
   }
   debug(markup_endnotes) {
     if (_txt.match(rgx.inline_notes_delimiter_al_regular_number_note)) {
-      writeln(__LINE__, " (missed) markup endnote: ", obj.typeinfo.is_a, ": ", obj.text);
+      writeln(__LINE__, " (missed) markup endnote: ", obj.metainfo.is_a, ": ", obj.text);
     }
   }
   debug(markup) {
     if (_txt.match(rgx.inline_notes_delimiter_al_regular_number_note)) {
-      writeln(__LINE__, " (missed) markup endnote: ", obj.typeinfo.is_a, ": ", obj.text);
+      writeln(__LINE__, " (missed) markup endnote: ", obj.metainfo.is_a, ": ", obj.text);
     }
   }
   return _txt;
@@ -560,7 +560,7 @@ auto inline_notes_seg(O)(
     );
   } else if (_txt.match(rgx.inline_notes_delimiter_al_regular_number_note)) {
     debug(markup) {
-      writeln(__LINE__, " endnote: ", obj.typeinfo.is_a, ": ", obj.text);
+      writeln(__LINE__, " endnote: ", obj.metainfo.is_a, ": ", obj.text);
     }
   }
   auto t = tuple(
@@ -733,12 +733,12 @@ auto heading(O)(
   auto tags = _xhtml_anchor_tags(obj.tags.anchor_tags);
   string _horizontal_rule = "<hr />";
   if ((_xml_type != "html")
-  || (obj.node.heading_lev_markup == 0 || obj.node.heading_lev_markup > 4)) {
+  || (obj.metainfo.heading_lev_markup == 0 || obj.metainfo.heading_lev_markup > 4)) {
     _horizontal_rule = "";
   }
   _txt = font_face(_txt);
   string o;
-  if (obj.node.object_number.empty) {
+  if (obj.metainfo.object_number.empty) {
     o = format(q"¶%s
   <div class="substance">
     <h%s class="%s">%s
@@ -746,11 +746,11 @@ auto heading(O)(
     </h%s>
   </div>¶",
       _horizontal_rule,
-      obj.node.heading_lev_markup,
-      obj.typeinfo.is_a,
+      obj.metainfo.heading_lev_markup,
+      obj.metainfo.is_a,
       tags,
       _txt,
-      obj.node.heading_lev_markup,
+      obj.metainfo.heading_lev_markup,
     );
   } else {
     o = format(q"¶%s
@@ -761,15 +761,15 @@ auto heading(O)(
     </h%s>
   </div>¶",
     _horizontal_rule,
-    obj.node.object_number,
-    obj.node.object_number,
-    obj.node.heading_lev_markup,
-    obj.typeinfo.is_a,
-    obj.node.object_number,
-    obj.node.object_number,
+    obj.metainfo.object_number,
+    obj.metainfo.object_number,
+    obj.metainfo.heading_lev_markup,
+    obj.metainfo.is_a,
+    obj.metainfo.object_number,
+    obj.metainfo.object_number,
     tags,
     _txt,
-    obj.node.heading_lev_markup,
+    obj.metainfo.heading_lev_markup,
     );
   }
   return o;
@@ -827,13 +827,13 @@ auto para(O)(
   _txt = font_face(_txt);
   string o;
   _txt = (obj.attrib.bullet) ? ("●&#160;&#160;" ~ _txt) : _txt;
-  if (obj.node.object_number.empty) {
+  if (obj.metainfo.object_number.empty) {
     o = format(q"¶  <div class="substance">
   <p class="%s" indent="h%si%s">%s
     %s
   </p>
 </div>¶",
-      obj.typeinfo.is_a,
+      obj.metainfo.is_a,
       obj.attrib.indent_hang,
       obj.attrib.indent_base,
       tags,
@@ -846,12 +846,12 @@ auto para(O)(
     %s
   </p>
 </div>¶",
-      obj.node.object_number,
-      obj.node.object_number,
-      obj.typeinfo.is_a,
+      obj.metainfo.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.is_a,
       obj.attrib.indent_hang,
       obj.attrib.indent_base,
-      obj.node.object_number,
+      obj.metainfo.object_number,
       tags,
       _txt
     );
@@ -909,13 +909,13 @@ auto quote(O)(
 ) {
   _txt = font_face(_txt);
   string o;
-  if (obj.node.object_number.empty) {
+  if (obj.metainfo.object_number.empty) {
     o = format(q"¶  <div class="substance">
   <p class="%s">
     %s
   </p>
 </div>¶",
-      obj.typeinfo.is_a,
+      obj.metainfo.is_a,
       _txt
     );
   } else {
@@ -925,10 +925,10 @@ auto quote(O)(
     %s
   </p>
 </div>¶",
-      obj.node.object_number,
-      obj.node.object_number,
-      obj.typeinfo.is_a,
-      obj.node.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.is_a,
+      obj.metainfo.object_number,
       _txt
     );
   }
@@ -985,13 +985,13 @@ auto group(O)(
 ) {
   _txt = font_face(_txt);
   string o;
-  if (obj.node.object_number.empty) {
+  if (obj.metainfo.object_number.empty) {
     o = format(q"¶  <div class="substance">
   <p class="%s">
     %s
   </p>
 </div>¶",
-      obj.typeinfo.is_a,
+      obj.metainfo.is_a,
       _txt
     );
   } else {
@@ -1001,10 +1001,10 @@ auto group(O)(
     %s
   </p>
 </div>¶",
-      obj.node.object_number,
-      obj.node.object_number,
-      obj.typeinfo.is_a,
-      obj.node.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.is_a,
+      obj.metainfo.object_number,
       _txt
     );
   }
@@ -1062,11 +1062,11 @@ auto block(O)(
 ) {
   _txt = font_face(_txt);
   string o;
-  if (obj.node.object_number.empty) {
+  if (obj.metainfo.object_number.empty) {
     o = format(q"¶  <div class="substance">
   <p class="%s">%s</p>
 </div>¶",
-      obj.typeinfo.is_a,
+      obj.metainfo.is_a,
       _txt.stripRight
     );
   } else {
@@ -1074,10 +1074,10 @@ auto block(O)(
   <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
   <p class="%s" id="%s">%s</p>
 </div>¶",
-      obj.node.object_number,
-      obj.node.object_number,
-      obj.typeinfo.is_a,
-      obj.node.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.is_a,
+      obj.metainfo.object_number,
       _txt.stripRight
     );
   }
@@ -1135,11 +1135,11 @@ auto verse(O)(
 ) {
   _txt = font_face(_txt);
   string o;
-  if (obj.node.object_number.empty) {
+  if (obj.metainfo.object_number.empty) {
       o = format(q"¶  <div class="substance">
         <p class="%s">%s</p>
     </div>¶",
-      obj.typeinfo.is_a,
+      obj.metainfo.is_a,
       _txt
     );
   } else {
@@ -1147,10 +1147,10 @@ auto verse(O)(
       <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
       <p class="%s" id="%s">%s</p>
     </div>¶",
-      obj.node.object_number,
-      obj.node.object_number,
-      obj.typeinfo.is_a,
-      obj.node.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.is_a,
+      obj.metainfo.object_number,
       _txt
     );
   }
@@ -1206,11 +1206,11 @@ auto code(O)(
   string                   _txt,
 ) {
   string o;
-  if (obj.node.object_number.empty) {
+  if (obj.metainfo.object_number.empty) {
       o = format(q"¶  <div class="substance">
     <p class="%s">%s</p>
 </div>¶",
-      obj.typeinfo.is_a,
+      obj.metainfo.is_a,
       _txt
     );
   } else {
@@ -1218,10 +1218,10 @@ auto code(O)(
   <label class="ocn"><a href="#%s" class="lnkocn">%s</a></label>
   <p class="%s" id="%s">%s</p>
 </div>¶",
-      obj.node.object_number,
-      obj.node.object_number,
-      obj.typeinfo.is_a,
-      obj.node.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.object_number,
+      obj.metainfo.is_a,
+      obj.metainfo.object_number,
       _txt
     );
   }
@@ -1300,10 +1300,10 @@ auto table(O)(
     %s
   </p>
 </div>¶",
-    obj.node.object_number,
-    obj.node.object_number,
-    obj.typeinfo.is_a,
-    obj.node.object_number,
+    obj.metainfo.object_number,
+    obj.metainfo.object_number,
+    obj.metainfo.is_a,
+    obj.metainfo.object_number,
     tags,
     _txt,
     _note
@@ -1324,7 +1324,7 @@ auto endnote(O)(
   o = format(q"¶    <p class="%s" indent="h%si%s">
   %s
 </p>¶",
-    obj.typeinfo.is_a,
+    obj.metainfo.is_a,
     obj.attrib.indent_hang,
     obj.attrib.indent_base,
     _txt
@@ -1369,11 +1369,11 @@ void scroll(D,I)(
     foreach (obj; doc_abstraction[part]) {
       delimit = xhtml_format.div_delimit(part, previous_part);
       string _txt = xhtml_format.special_characters(obj, obj.text);
-      switch (obj.typeinfo.is_of_part) {
+      switch (obj.metainfo.is_of_part) {
       case "frontmatter":              assert(part == "head" || "toc_scroll");
-        switch (obj.typeinfo.is_of_type) {
+        switch (obj.metainfo.is_of_type) {
         case "para":
-          switch (obj.typeinfo.is_a) {
+          switch (obj.metainfo.is_a) {
           case "heading":
             doc_html ~= delimit ~ xhtml_format.heading_scroll(obj, _txt, suffix);
             break;
@@ -1382,22 +1382,22 @@ void scroll(D,I)(
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
             }
             break;
           }
           break;
         default:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
           }
           break;
         }
         break;
       case "body":                     assert(part == "body" || "head"); // surprise
-        switch (obj.typeinfo.is_of_type) {
+        switch (obj.metainfo.is_of_type) {
         case "para":
-          switch (obj.typeinfo.is_a) {
+          switch (obj.metainfo.is_a) {
           case "heading":
             doc_html ~= delimit ~ xhtml_format.heading_scroll(obj, _txt, suffix);
             break;
@@ -1406,13 +1406,13 @@ void scroll(D,I)(
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
             }
             break;
           }
           break;
         case "block":
-          switch (obj.typeinfo.is_a) {
+          switch (obj.metainfo.is_a) {
           case "quote":
             doc_html ~= xhtml_format.quote_scroll(obj, _txt);
             break;
@@ -1435,23 +1435,23 @@ void scroll(D,I)(
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
             }
             break;
           }
           break;
         default:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
           }
           break;
         }
         break;
       case "backmatter":
         assert(part == "endnotes" || "glossary" || "bibliography" || "bookindex_scroll" || "blurb" || "tail");
-        switch (obj.typeinfo.is_of_type) {
+        switch (obj.metainfo.is_of_type) {
         case "para":
-          switch (obj.typeinfo.is_a) {
+          switch (obj.metainfo.is_a) {
           case "heading":
             doc_html ~= delimit ~ xhtml_format.heading_scroll(obj, _txt, suffix);
             break;
@@ -1472,14 +1472,14 @@ void scroll(D,I)(
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
             }
             break;
           }
           break;
         default:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
           }
           break;
         }
@@ -1488,8 +1488,8 @@ void scroll(D,I)(
         break;
       default:
         if ((doc_matters.opt.action.debug_do)) {
-          writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_part);
-          writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+          writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
+          writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
           writeln(__FILE__, ":", __LINE__, ": ", obj.text);
         }
         break;
@@ -1554,12 +1554,12 @@ void seg(D,M)(
     foreach (obj; doc_abstraction[part]) {
       delimit = xhtml_format.div_delimit(part, previous_part);
       string _txt = xhtml_format.special_characters(obj, obj.text);
-      if (obj.typeinfo.is_a == "heading") {
+      if (obj.metainfo.is_a == "heading") {
         assert(part == "head" || "toc_seg" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex_seg" || "blurb" || "tail");
-        switch (obj.node.heading_lev_markup) {
+        switch (obj.metainfo.heading_lev_markup) {
         case 0: .. case 3:
           /+ fill buffer, and replace with new levels from 1 to 3 +/
-          switch (obj.node.heading_lev_markup) {
+          switch (obj.metainfo.heading_lev_markup) {
           case 0:
             top_level_headings[0] = "";
             top_level_headings[1] = "";
@@ -1580,7 +1580,7 @@ void seg(D,M)(
             goto default;
           default:
             auto t = xhtml_format.heading_seg(obj, _txt, suffix, "seg");
-            top_level_headings[obj.node.heading_lev_markup] = t[0];
+            top_level_headings[obj.metainfo.heading_lev_markup] = t[0];
             break;
           }
           break;
@@ -1606,45 +1606,45 @@ void seg(D,M)(
           break;
         case 8: .. case 9:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a, ": ", obj.node.heading_lev_markup);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
             writeln(__FILE__, ":", __LINE__, ": ", obj.text);
           }
           break;
         default:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a, ": ", obj.node.heading_lev_markup);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
           }
           break;
         }
       } else {
         assert(part == "head" || "toc_seg" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex_seg" || "blurb" || "tail");
-        switch (obj.typeinfo.is_of_part) {
+        switch (obj.metainfo.is_of_part) {
         case "frontmatter":             assert(part == "head" || "toc_seg");
-          switch (obj.typeinfo.is_of_type) {
+          switch (obj.metainfo.is_of_type) {
           case "para":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "toc":
               auto t = xhtml_format.para_seg(obj, _txt, suffix, "seg");
               doc_html[segment_filename] ~= t[0].to!string;
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
             }
             break;
           }
           break;
         case "body":                    assert(part == "body");
-          switch (obj.typeinfo.is_of_type) {
+          switch (obj.metainfo.is_of_type) {
           case "para":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "para":
               auto t = xhtml_format.para_seg(obj, _txt, suffix, "seg");
               doc_html[segment_filename] ~= t[0].to!string;
@@ -1652,13 +1652,13 @@ void seg(D,M)(
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           case "block":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "quote":
               auto t = xhtml_format.quote_seg(obj, _txt, suffix, "seg");
               doc_html[segment_filename] ~= t[0].to!string;
@@ -1690,23 +1690,23 @@ void seg(D,M)(
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
             }
             break;
           }
           break;
         case "backmatter":
           assert(part == "endnotes" || "glossary" || "bibliography" || "bookindex_seg" || "blurb" || "tail");
-          switch (obj.typeinfo.is_of_type) {
+          switch (obj.metainfo.is_of_type) {
           case "para":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "endnote":             assert(part == "endnotes");
               auto t = xhtml_format.para_seg(obj, _txt, suffix, "seg");
               doc_html[segment_filename] ~= t[0];
@@ -1733,14 +1733,14 @@ void seg(D,M)(
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
             }
             break;
           }
@@ -1749,7 +1749,7 @@ void seg(D,M)(
           break;
         default:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_part);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
           }
           break;
         }
@@ -2004,20 +2004,20 @@ string epub3_oebps_content(D,M,P)(D doc_abstraction, M doc_matters, P parts) {
   debug(epubmanifest) {
     foreach (s; doc_matters.xml.keys_seq.seg) {
       foreach (obj; doc_abstraction[s]) {
-        if (obj.typeinfo.is_a == "heading") {
-          if (obj.node.heading_lev_markup == 4) {
+        if (obj.metainfo.is_a == "heading") {
+          if (obj.metainfo.heading_lev_markup == 4) {
             writefln(
               "%s~ [%s.xhtml] %s",
               obj.marked_up_level,
               obj.tags.segment_anchor_tag,
               obj.text
             );
-          } else if (obj.node.heading_lev_markup > 4) {
+          } else if (obj.metainfo.heading_lev_markup > 4) {
             writefln(
               "%s~ [%s.xhtml#%s] %s",
               obj.marked_up_level,
               obj.tags.segment_anchor_tag,
-              obj.node.object_number,
+              obj.metainfo.object_number,
               obj.text
             );
           }
@@ -2054,27 +2054,27 @@ string epub3_oebps_toc_nav_xhtml(D,I)(D doc_abstraction, I doc_matters) {
   );
   foreach (sect; doc_matters.xml.keys_seq.seg) {
     foreach (obj; doc_abstraction[sect]) {
-      if (obj.typeinfo.is_a == "heading") {
+      if (obj.metainfo.is_a == "heading") {
         string _txt = obj.text.replaceAll(rgx.inline_notes_al_gen, "").strip;
         foreach_reverse (n; 0 .. 7) {
           string k = n.to!string;
-          switch (obj.node.dom_collapsed[n]) {
+          switch (obj.metainfo.dom_collapsed[n]) {
           case DomTags.close :
             toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "</li>" ~ "\n";
             toc ~= markup.indent_by_spaces_provided(n, "  ") ~ "</ol>" ~ "\n";
             break;
           case DomTags.close_and_open :
             toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "</li>" ~ "\n";
-            if  (obj.node.heading_lev_markup < 4) {
+            if  (obj.metainfo.heading_lev_markup < 4) {
               toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
               ~ markup.indent_by_spaces_provided((n + 2), "  ")
               ~ "<a href=\"" ~ obj.tags.segment_anchor_tag ~ ".xhtml" ~ "\">"
               ~ _txt
               ~ "</a>" ~ "\n";
             } else {
-              string hashtag =(obj.node.heading_lev_markup == 4)
+              string hashtag =(obj.metainfo.heading_lev_markup == 4)
               ? ""
-              : ("#" ~ obj.node.ocn.to!string);
+              : ("#" ~ obj.metainfo.ocn.to!string);
               toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
               ~ markup.indent_by_spaces_provided((n + 2), "  ")
               ~ "<a href=\"" ~ obj.tags.segment_anchor_tag ~ ".xhtml" ~ hashtag ~ "\">"
@@ -2084,16 +2084,16 @@ string epub3_oebps_toc_nav_xhtml(D,I)(D doc_abstraction, I doc_matters) {
             break;
           case DomTags.open :
             toc ~= markup.indent_by_spaces_provided(n, "  ") ~ "<ol>" ~ "\n";
-            if  (obj.node.heading_lev_markup < 4) {
+            if  (obj.metainfo.heading_lev_markup < 4) {
               toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
               ~ markup.indent_by_spaces_provided((n + 2), "  ")
               ~ "<a href=\"" ~ obj.tags.segment_anchor_tag ~ ".xhtml" ~ "\">"
               ~ _txt
               ~ "</a>" ~ "\n";
             } else {
-              string hashtag =(obj.node.heading_lev_markup == 4)
+              string hashtag =(obj.metainfo.heading_lev_markup == 4)
               ? ""
-              : ("#" ~ obj.node.ocn.to!string);
+              : ("#" ~ obj.metainfo.ocn.to!string);
               toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
               ~ markup.indent_by_spaces_provided((n + 2), "  ")
               ~ "<a href=\"" ~ obj.tags.segment_anchor_tag ~ ".xhtml" ~ hashtag ~ "\">"
@@ -2160,11 +2160,11 @@ string epub2_oebps_toc_ncx(D,I)(D doc_abstraction, I doc_matters) {
   );
   foreach (sect; doc_matters.xml.keys_seq.seg) {
     foreach (obj; doc_abstraction[sect]) {
-      if (obj.typeinfo.is_a == "heading") {
+      if (obj.metainfo.is_a == "heading") {
         string _txt = obj.text.replaceAll(rgx.inline_notes_al_gen, "").strip;
-        string hashtag =(obj.node.heading_lev_markup <= 4) ? "" : ("#" ~ obj.node.ocn.to!string);
+        string hashtag =(obj.metainfo.heading_lev_markup <= 4) ? "" : ("#" ~ obj.metainfo.ocn.to!string);
         foreach_reverse (k; 0 .. 7) {
-          switch (obj.node.dom_markedup[k]) {
+          switch (obj.metainfo.dom_markedup[k]) {
           case DomTags.close :
             toc ~= "\n    </navPoint>";
             break;
@@ -2233,12 +2233,12 @@ void outputEPub3(D,I)(
   foreach (part; doc_matters.xml.keys_seq.seg) {
     foreach (obj; doc_abstraction[part]) {
       string _txt = xhtml_format.special_characters(obj, obj.text);
-      if (obj.typeinfo.is_a == "heading") {
+      if (obj.metainfo.is_a == "heading") {
         assert(part == "head" || "toc_seg" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex_seg" || "blurb" || "tail");
-        switch (obj.node.heading_lev_markup) {
+        switch (obj.metainfo.heading_lev_markup) {
         case 0: .. case 3:
           /+ fill buffer, and replace with new levels from 1 to 3 +/
-          switch (obj.node.heading_lev_markup) {
+          switch (obj.metainfo.heading_lev_markup) {
           case 0:
             top_level_headings[0] = "";
             top_level_headings[1] = "";
@@ -2280,23 +2280,23 @@ void outputEPub3(D,I)(
           break;
         case 8: .. case 9:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a, ": ", obj.node.heading_lev_markup);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
             writeln(__FILE__, ":", __LINE__, ": ", obj.text);
           }
           break;
         default:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a, ": ", obj.node.heading_lev_markup);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup);
           }
           break;
         }
       } else {
         assert(part == "head" || "toc_seg" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex_seg" || "blurb" || "tail");
-        switch (obj.typeinfo.is_of_part) {
+        switch (obj.metainfo.is_of_part) {
         case "frontmatter":             assert(part == "head" || "toc_seg");
-          switch (obj.typeinfo.is_of_type) {
+          switch (obj.metainfo.is_of_type) {
           case "para":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "toc":
               auto t = xhtml_format.para_seg(obj, _txt, suffix, "epub");
               doc_epub3[segment_filename] ~= t[0];
@@ -2304,22 +2304,22 @@ void outputEPub3(D,I)(
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
             }
             break;
           }
           break;
         case "body":                    assert(part == "body");
-          switch (obj.typeinfo.is_of_type) {
+          switch (obj.metainfo.is_of_type) {
           case "para":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "para":
               auto t = xhtml_format.para_seg(obj, _txt, suffix, "epub");
               doc_epub3[segment_filename] ~= t[0];
@@ -2327,13 +2327,13 @@ void outputEPub3(D,I)(
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           case "block":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "quote":
               auto t = xhtml_format.quote_seg(obj, _txt, suffix, "epub");
               doc_epub3[segment_filename] ~= t[0].to!string;
@@ -2365,23 +2365,23 @@ void outputEPub3(D,I)(
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
             }
             break;
           }
           break;
         case "backmatter":
           assert(part == "endnotes" || "glossary" || "bibliography" || "bookindex_seg" || "blurb" || "tail");
-          switch (obj.typeinfo.is_of_type) {
+          switch (obj.metainfo.is_of_type) {
           case "para":
-            switch (obj.typeinfo.is_a) {
+            switch (obj.metainfo.is_a) {
             case "endnote":             assert(part == "endnotes");
               auto t = xhtml_format.para_seg(obj, _txt, suffix, "epub");
               doc_epub3[segment_filename] ~= t[0];
@@ -2408,14 +2408,14 @@ void outputEPub3(D,I)(
               break;
             default:
               if ((doc_matters.opt.action.debug_do)) {
-                writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_a);
+                writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
               }
               break;
             }
             break;
           default:
             if ((doc_matters.opt.action.debug_do)) {
-              writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_type);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type);
             }
             break;
           }
@@ -2424,14 +2424,14 @@ void outputEPub3(D,I)(
           break;
         default:
           if ((doc_matters.opt.action.debug_do)) {
-            writeln(__FILE__, ":", __LINE__, ": ", obj.typeinfo.is_of_part);
+            writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part);
           }
           break;
         }
       }
-      if (obj.typeinfo.is_a == "heading") {
+      if (obj.metainfo.is_a == "heading") {
         assert(obj.text.length > 0);
-        if (obj.node.heading_lev_markup <= 4) {
+        if (obj.metainfo.heading_lev_markup <= 4) {
           oepbs_content_parts["manifest_documents"] ~=
             format(q"¶      <item id="%s.xhtml" href="%s.xhtml" media-type="application/xhtml+xml" />
 ¶",
@@ -2449,28 +2449,28 @@ void outputEPub3(D,I)(
             obj.tags.segment_anchor_tag,
             obj.tags.segment_anchor_tag,
           );
-        } else if (obj.node.heading_lev_markup > 4) {
+        } else if (obj.metainfo.heading_lev_markup > 4) {
           oepbs_content_parts["manifest_documents"] ~=
             format(q"¶      <item id="%s.xhtml#%s" href="%s.xhtml#%s" media-type="application/xhtml+xml" />
 ¶",
             obj.tags.segment_anchor_tag,
-            obj.node.object_number,
+            obj.metainfo.object_number,
             obj.tags.segment_anchor_tag,
-            obj.node.object_number,
+            obj.metainfo.object_number,
           );
           oepbs_content_parts["spine"] ~=
             format(q"¶    <itemref idref="%s.xhtml#%s" linear="yes" />
 ¶",
             obj.tags.segment_anchor_tag,
-            obj.node.object_number,
+            obj.metainfo.object_number,
           );
           oepbs_content_parts["guide"] ~=
             format(q"¶      <reference type="%s#%s" href="%s#%s" />
 ¶",
             obj.tags.segment_anchor_tag,
-            obj.node.object_number,
+            obj.metainfo.object_number,
             obj.tags.segment_anchor_tag,
-            obj.node.object_number,
+            obj.metainfo.object_number,
           );
         }
       }