naming is_of_ (is_ of_)

3 files changed, 260 insertions, 252 deletions

diff --git a/org/meta_abstraction.org b/org/meta_abstraction.org
index 3b21446..7e99504 100644
--- a/org/meta_abstraction.org
+++ b/org/meta_abstraction.org
@@ -503,9 +503,9 @@ string toc_txt_;
 an_object["glossary_nugget"]                 = "";
 an_object["blurb_nugget"]                    = "";
 comp_obj_heading_                            = comp_obj_heading_.init;
-comp_obj_heading_.typeinfo.of_part           = "frontmatter";
-comp_obj_heading_.typeinfo.of_section        = "toc";
-comp_obj_heading_.typeinfo.is_of             = "para";
+comp_obj_heading_.typeinfo.is_of_part        = "frontmatter";
+comp_obj_heading_.typeinfo.is_of_section     = "toc";
+comp_obj_heading_.typeinfo.is_of_type        = "para";
 comp_obj_heading_.typeinfo.is_a              = "heading";
 comp_obj_heading_.text                       = "Table of Contents";
 comp_obj_heading_.node.ocn                   = 0;
@@ -679,9 +679,9 @@ if there is a glossary section you need to:
     an_object_key="glossary_nugget"; //
     if (line.matchFirst(rgx.heading_glossary)) {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "glossary";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "glossary";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Glossary";
       comp_obj_heading_.node.ocn                   = 0;
@@ -697,9 +697,9 @@ if there is a glossary section you need to:
       comp_obj_heading_.node.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_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "glossary";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "glossary";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Glossary";
       comp_obj_heading_.node.ocn                   = 0;
@@ -718,9 +718,9 @@ if there is a glossary section you need to:
     } else {
       _para_match_(line, an_object, an_object_key, indent, bullet, obj_type_status, line_occur);
       comp_obj_para                           = comp_obj_para.init;
-      comp_obj_para.typeinfo.of_part          = "backmatter";
-      comp_obj_para.typeinfo.of_section       = "glossary";
-      comp_obj_para.typeinfo.is_of            = "para";
+      comp_obj_para.typeinfo.is_of_part       = "backmatter";
+      comp_obj_para.typeinfo.is_of_section    = "glossary";
+      comp_obj_para.typeinfo.is_of_type       = "para";
       comp_obj_para.typeinfo.is_a             = "glossary";
       comp_obj_para.text                      = line.to!string.strip;
       comp_obj_para.node.ocn                  = 0;
@@ -800,9 +800,9 @@ if there is a blurb section you need to:
     an_object_key="blurb_nugget";
     if (line.matchFirst(rgx.heading_blurb)) {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "blurb";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "blurb";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Blurb";
       comp_obj_heading_.node.ocn                   = 0;
@@ -818,9 +818,9 @@ if there is a blurb section you need to:
       comp_obj_heading_.node.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_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "blurb";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "blurb";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Blurb";
       comp_obj_heading_.node.ocn                   = 0;
@@ -839,9 +839,9 @@ if there is a blurb section you need to:
     } else if (line.matchFirst(rgx.heading)
     && (opt_action.backmatter && opt_action.section_blurb)) {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "blurb";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "blurb";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = line.to!string;
       comp_obj_heading_.node.ocn                   = 0;
@@ -857,9 +857,9 @@ if there is a blurb section you need to:
     } else {
       _para_match_(line, an_object, an_object_key, indent, bullet, obj_type_status, line_occur);
       comp_obj_para                           = comp_obj_para.init;
-      comp_obj_para.typeinfo.of_part          = "backmatter";
-      comp_obj_para.typeinfo.of_section       = "blurb";
-      comp_obj_para.typeinfo.is_of            = "para";
+      comp_obj_para.typeinfo.is_of_part       = "backmatter";
+      comp_obj_para.typeinfo.is_of_section    = "blurb";
+      comp_obj_para.typeinfo.is_of_type       = "para";
       comp_obj_para.typeinfo.is_a             = "blurb";
       comp_obj_para.text                      = munge.url_links(line.to!string.strip).replaceFirst(rgx.para_attribs, "");
       comp_obj_para.node.ocn                  = 0;
@@ -1029,14 +1029,14 @@ if (line.matchFirst(rgx.book_index)
     debug(comment) {
       writeln(line);
     }
-    an_object[an_object_key]             ~= line ~= "\n";
-    comp_obj_comment                     = comp_obj_comment.init;
-    comp_obj_comment.typeinfo.of_part    = "comment"; // breaks flow
-    comp_obj_comment.typeinfo.of_section = "comment"; // breaks flow
-    comp_obj_comment.typeinfo.is_of      = "comment";
-    comp_obj_comment.typeinfo.is_a       = "comment";
-    comp_obj_comment.text                = an_object[an_object_key].strip;
-    the_document_body_section            ~= comp_obj_comment;
+    an_object[an_object_key]                ~= line ~= "\n";
+    comp_obj_comment                        = comp_obj_comment.init;
+    comp_obj_comment.typeinfo.is_of_part    = "comment"; // breaks flow
+    comp_obj_comment.typeinfo.is_of_section = "comment"; // breaks flow
+    comp_obj_comment.typeinfo.is_of_type    = "comment";
+    comp_obj_comment.typeinfo.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, obj_type_status);
     processing.remove("verse");
     ++cntr;
@@ -1274,9 +1274,9 @@ if ((obj_type_status["heading"] == State.on)
   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.typeinfo.of_part                            = "body";
-  comp_obj_para.typeinfo.of_section                         = "body";
-  comp_obj_para.typeinfo.is_of                              = "para";
+  comp_obj_para.typeinfo.is_of_part                         = "body";
+  comp_obj_para.typeinfo.is_of_section                      = "body";
+  comp_obj_para.typeinfo.is_of_type                         = "para";
   comp_obj_para.typeinfo.is_a                               = "para";
   comp_obj_para.text                                        = an_object["substantive"].to!string.strip;
   comp_obj_para.node.ocn                                    = obj_cite_digits.digit;
@@ -1398,9 +1398,9 @@ debug(endnotes) {
 #+BEGIN_SRC d
 if (an_object["glossary_nugget"].length == 0) {
   comp_obj_heading_                            = comp_obj_heading_.init;
-  comp_obj_heading_.typeinfo.of_part           = "empty";
-  comp_obj_heading_.typeinfo.of_section        = "empty";
-  comp_obj_heading_.typeinfo.is_of             = "para";
+  comp_obj_heading_.typeinfo.is_of_part        = "empty";
+  comp_obj_heading_.typeinfo.is_of_section     = "empty";
+  comp_obj_heading_.typeinfo.is_of_type        = "para";
   comp_obj_heading_.typeinfo.is_a              = "heading";
   comp_obj_heading_.text                       = "(skip) there is no Glossary section";
   comp_obj_heading_.node.ocn                   = 0;
@@ -1436,9 +1436,9 @@ auto biblio_ordered
 #+BEGIN_SRC d
 if (biblio_ordered.length > 0) {
   comp_obj_heading_                            = comp_obj_heading_.init;
-  comp_obj_heading_.typeinfo.of_part           = "backmatter";
-  comp_obj_heading_.typeinfo.of_section        = "bibliography";
-  comp_obj_heading_.typeinfo.is_of             = "para";
+  comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+  comp_obj_heading_.typeinfo.is_of_section     = "bibliography";
+  comp_obj_heading_.typeinfo.is_of_type        = "para";
   comp_obj_heading_.typeinfo.is_a              = "heading";
   comp_obj_heading_.text                       = "Bibliography";
   comp_obj_heading_.node.ocn                   = 0;
@@ -1452,9 +1452,9 @@ if (biblio_ordered.length > 0) {
   comp_obj_heading_.node.parent_lev_markup     = 0;
   the_bibliography_section                     ~= comp_obj_heading_;
   comp_obj_heading_                            = comp_obj_heading_.init;
-  comp_obj_heading_.typeinfo.of_part           = "backmatter";
-  comp_obj_heading_.typeinfo.of_section        = "bibliography";
-  comp_obj_heading_.typeinfo.is_of             = "para";
+  comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+  comp_obj_heading_.typeinfo.is_of_section     = "bibliography";
+  comp_obj_heading_.typeinfo.is_of_type        = "para";
   comp_obj_heading_.typeinfo.is_a              = "heading";
   comp_obj_heading_.text                       = "Bibliography";
   comp_obj_heading_.node.ocn                   = 0;
@@ -1470,9 +1470,9 @@ if (biblio_ordered.length > 0) {
   the_bibliography_section                     ~= comp_obj_heading_;
 } else {
   comp_obj_heading_                            = comp_obj_heading_.init;
-  comp_obj_heading_.typeinfo.of_part           = "empty";
-  comp_obj_heading_.typeinfo.of_section        = "empty";
-  comp_obj_heading_.typeinfo.is_of             = "para";
+  comp_obj_heading_.typeinfo.is_of_part        = "empty";
+  comp_obj_heading_.typeinfo.is_of_section     = "empty";
+  comp_obj_heading_.typeinfo.is_of_type        = "para";
   comp_obj_heading_.typeinfo.is_a              = "heading";
   comp_obj_heading_.text                       = "(skip) there is no Bibliography";
   comp_obj_heading_.node.ocn                   = 0;
@@ -1508,9 +1508,9 @@ foreach (entry; biblio_ordered) {
     ((entry["url"].str.empty) ? "" : ", [" ~ entry["url"].str ~ "]"),
   );
   comp_obj_para                           = comp_obj_para.init;
-  comp_obj_para.typeinfo.of_part          = "backmatter";
-  comp_obj_para.typeinfo.of_section       = "bibliography";
-  comp_obj_para.typeinfo.is_of            = "para";
+  comp_obj_para.typeinfo.is_of_part       = "backmatter";
+  comp_obj_para.typeinfo.is_of_section    = "bibliography";
+  comp_obj_para.typeinfo.is_of_type       = "para";
   comp_obj_para.typeinfo.is_a             = "bibliography";
   comp_obj_para.text                      = out_.to!string.strip;
   comp_obj_para.node.ocn                  = 0;
@@ -1593,9 +1593,9 @@ debug(bookindex) {
 #+BEGIN_SRC d
 if (an_object["blurb_nugget"].length == 0) {
   comp_obj_heading_                            = comp_obj_heading_.init;
-  comp_obj_heading_.typeinfo.of_part           = "empty";
-  comp_obj_heading_.typeinfo.of_section        = "empty";
-  comp_obj_heading_.typeinfo.is_of             = "para";
+  comp_obj_heading_.typeinfo.is_of_part        = "empty";
+  comp_obj_heading_.typeinfo.is_of_section     = "empty";
+  comp_obj_heading_.typeinfo.is_of_type        = "para";
   comp_obj_heading_.typeinfo.is_a              = "heading";
   comp_obj_heading_.text                       = "(skip) there is no Blurb section";
   comp_obj_heading_.node.ocn                   = 0;
@@ -1625,9 +1625,9 @@ indent=[
   "base_position" : 1,
 ];
 comp_obj_toc                           = comp_obj_toc.init;
-comp_obj_toc.typeinfo.of_part          = "frontmatter";
-comp_obj_toc.typeinfo.of_section       = "toc";
-comp_obj_toc.typeinfo.is_of            = "para";
+comp_obj_toc.typeinfo.is_of_part       = "frontmatter";
+comp_obj_toc.typeinfo.is_of_section    = "toc";
+comp_obj_toc.typeinfo.is_of_type       = "para";
 comp_obj_toc.typeinfo.is_a             = "toc";
 comp_obj_toc.node.ocn                  = 0;
 comp_obj_toc.misc.object_number_off    = "";
@@ -2399,9 +2399,9 @@ if (the_blurb_section.length > 1) {
       - obj.node.dom_collapsed = dom_collapsed;
   +/
 comp_obj_heading_                            = comp_obj_heading_.init;
-comp_obj_heading_.typeinfo.of_part           = "empty";
-comp_obj_heading_.typeinfo.of_section        = "empty";
-comp_obj_heading_.typeinfo.is_of             = "para";
+comp_obj_heading_.typeinfo.is_of_part        = "empty";
+comp_obj_heading_.typeinfo.is_of_section     = "empty";
+comp_obj_heading_.typeinfo.is_of_type        = "para";
 comp_obj_heading_.typeinfo.is_a              = "heading";
 comp_obj_heading_.node.ocn                   = 0;
 comp_obj_para.misc.object_number_off         = "";
@@ -3369,9 +3369,9 @@ void _poem_block_(L,O,T,C,N,CMM)(
           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.typeinfo.of_part              = "body";
-          comp_obj_block.typeinfo.of_section           = "body";
-          comp_obj_block.typeinfo.is_of                = "block";
+          comp_obj_block.typeinfo.is_of_part           = "body";
+          comp_obj_block.typeinfo.is_of_section        = "body";
+          comp_obj_block.typeinfo.is_of_type           = "block";
           comp_obj_block.typeinfo.is_a                 = "verse";
           comp_obj_block.node.ocn                      = obj_cite_digits.on;
           comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3426,9 +3426,9 @@ void _poem_block_(L,O,T,C,N,CMM)(
         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.typeinfo.of_part              = "body";
-        comp_obj_block.typeinfo.of_section           = "body";
-        comp_obj_block.typeinfo.is_of                = "block";
+        comp_obj_block.typeinfo.is_of_part           = "body";
+        comp_obj_block.typeinfo.is_of_section        = "body";
+        comp_obj_block.typeinfo.is_of_type           = "block";
         comp_obj_block.typeinfo.is_a                 = "verse";
         comp_obj_block.node.ocn                      = obj_cite_digits.on;
         comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3468,9 +3468,9 @@ void _poem_block_(L,O,T,C,N,CMM)(
         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.typeinfo.of_part              = "body";
-        comp_obj_block.typeinfo.of_section           = "body";
-        comp_obj_block.typeinfo.is_of                = "block";
+        comp_obj_block.typeinfo.is_of_part           = "body";
+        comp_obj_block.typeinfo.is_of_section        = "body";
+        comp_obj_block.typeinfo.is_of_type           = "block";
         comp_obj_block.typeinfo.is_a                 = "verse";
         comp_obj_block.node.ocn                      = obj_cite_digits.on;
         comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3525,9 +3525,9 @@ void _poem_block_(L,O,T,C,N,CMM)(
         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.typeinfo.of_part              = "body";
-        comp_obj_block.typeinfo.of_section           = "body";
-        comp_obj_block.typeinfo.is_of                = "block";
+        comp_obj_block.typeinfo.is_of_part           = "body";
+        comp_obj_block.typeinfo.is_of_section        = "body";
+        comp_obj_block.typeinfo.is_of_type           = "block";
         comp_obj_block.typeinfo.is_a                 = "verse";
         comp_obj_block.node.ocn                      = obj_cite_digits.on;
         comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3740,9 +3740,9 @@ void _block_flag_line_empty_(B,N,CMM)(
     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.typeinfo.of_part              = "body";
-    comp_obj_block.typeinfo.of_section           = "body";
-    comp_obj_block.typeinfo.is_of                = "block";
+    comp_obj_block.typeinfo.is_of_part           = "body";
+    comp_obj_block.typeinfo.is_of_section        = "body";
+    comp_obj_block.typeinfo.is_of_type           = "block";
     comp_obj_block.typeinfo.is_a                 = "quote";
     comp_obj_block.node.ocn                      = obj_cite_digits.on;
     comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3789,9 +3789,9 @@ void _block_flag_line_empty_(B,N,CMM)(
     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.typeinfo.of_part              = "body";
-    comp_obj_block.typeinfo.of_section           = "body";
-    comp_obj_block.typeinfo.is_of                = "block";
+    comp_obj_block.typeinfo.is_of_part           = "body";
+    comp_obj_block.typeinfo.is_of_section        = "body";
+    comp_obj_block.typeinfo.is_of_type           = "block";
     comp_obj_block.typeinfo.is_a                 = "group";
     comp_obj_block.node.ocn                      = obj_cite_digits.on;
     comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3837,9 +3837,9 @@ void _block_flag_line_empty_(B,N,CMM)(
       = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta);
     an_object["substantive"]                     = substantive_obj_misc_tuple[sObj.content];
     comp_obj_block                               = comp_obj_block.init;
-    comp_obj_block.typeinfo.of_part              = "body";
-    comp_obj_block.typeinfo.of_section           = "body";
-    comp_obj_block.typeinfo.is_of                = "block";
+    comp_obj_block.typeinfo.is_of_part           = "body";
+    comp_obj_block.typeinfo.is_of_section        = "body";
+    comp_obj_block.typeinfo.is_of_type           = "block";
     comp_obj_block.typeinfo.is_a                 = "block";
     comp_obj_block.node.ocn                      = obj_cite_digits.on;
     comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3881,9 +3881,9 @@ void _block_flag_line_empty_(B,N,CMM)(
         an_object["is"]
       );
     comp_obj_poem_ocn                               = comp_obj_poem_ocn.init;
-    comp_obj_poem_ocn.typeinfo.of_part              = "body";
-    comp_obj_poem_ocn.typeinfo.of_section           = "body";
-    comp_obj_poem_ocn.typeinfo.is_of                = "block";
+    comp_obj_poem_ocn.typeinfo.is_of_part           = "body";
+    comp_obj_poem_ocn.typeinfo.is_of_section        = "body";
+    comp_obj_poem_ocn.typeinfo.is_of_type           = "block";
     comp_obj_poem_ocn.typeinfo.is_a                 = "poem";
     comp_obj_poem_ocn.node.ocn                      = obj_cite_digits.on;
     comp_obj_poem_ocn.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string; //
@@ -3926,9 +3926,9 @@ void _block_flag_line_empty_(B,N,CMM)(
     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.typeinfo.of_part               = "body";
-    comp_obj_code.typeinfo.of_section            = "body";
-    comp_obj_code.typeinfo.is_of                 = "block";
+    comp_obj_code.typeinfo.is_of_part            = "body";
+    comp_obj_code.typeinfo.is_of_section         = "body";
+    comp_obj_code.typeinfo.is_of_type            = "block";
     comp_obj_code.typeinfo.is_a                  = "code";
     comp_obj_code.node.ocn                       = obj_cite_digits.on;
     comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -4489,9 +4489,9 @@ auto table_instructions(O,H)(
   return ref H  table_head,
 ) {
   static auto rgx = Rgx();
-  table_object.typeinfo.of_part         = "body";
-  table_object.typeinfo.of_section      = "body";
-  table_object.typeinfo.is_of           = "block";
+  table_object.typeinfo.is_of_part      = "body";
+  table_object.typeinfo.is_of_section   = "body";
+  table_object.typeinfo.is_of_type      = "block";
   table_object.typeinfo.is_a            = "table";
   table_object.has.inline_notes_reg     = false;
   table_object.has.inline_notes_star    = false;
@@ -5404,9 +5404,9 @@ static struct ObjInlineMarkup {
       );
       toc_txt_= munge.url_links(toc_txt_);
       comp_obj_toc                            = comp_obj_toc.init;
-      comp_obj_toc.typeinfo.of_part           = "frontmatter";
-      comp_obj_toc.typeinfo.of_section        = "toc";
-      comp_obj_toc.typeinfo.is_of             = "para";
+      comp_obj_toc.typeinfo.is_of_part        = "frontmatter";
+      comp_obj_toc.typeinfo.is_of_section     = "toc";
+      comp_obj_toc.typeinfo.is_of_type        = "para";
       comp_obj_toc.typeinfo.is_a              = "toc";
       comp_obj_toc.node.ocn                   = 0;
       comp_obj_toc.misc.object_number_off     = "";
@@ -5423,9 +5423,9 @@ static struct ObjInlineMarkup {
         "base_position" : 0,
       ];
       comp_obj_toc                            = comp_obj_toc.init;
-      comp_obj_toc.typeinfo.of_part           = "frontmatter";
-      comp_obj_toc.typeinfo.of_section        = "toc";
-      comp_obj_toc.typeinfo.is_of             = "para";
+      comp_obj_toc.typeinfo.is_of_part        = "frontmatter";
+      comp_obj_toc.typeinfo.is_of_section     = "toc";
+      comp_obj_toc.typeinfo.is_of_type        = "para";
       comp_obj_toc.typeinfo.is_a              = "toc";
       comp_obj_toc.node.ocn                   = 0;
       comp_obj_toc.misc.object_number_off     = "";
@@ -5438,9 +5438,9 @@ static struct ObjInlineMarkup {
       the_table_of_contents_section["scroll"] ~= comp_obj_toc;
     }
     comp_obj_toc                              = comp_obj_toc.init;
-    comp_obj_toc.typeinfo.of_part             = "frontmatter";
-    comp_obj_toc.typeinfo.of_section          = "toc";
-    comp_obj_toc.typeinfo.is_of               = "para";
+    comp_obj_toc.typeinfo.is_of_part          = "frontmatter";
+    comp_obj_toc.typeinfo.is_of_section       = "toc";
+    comp_obj_toc.typeinfo.is_of_type          = "para";
     comp_obj_toc.typeinfo.is_a                = "toc";
     comp_obj_toc.node.ocn                     = 0;
     comp_obj_toc.misc.object_number_off       = "";
@@ -6291,9 +6291,9 @@ struct BookIndexReportSection {
       string bi_tmp_seg, bi_tmp_scroll;
       string[] bi_tmp_tags;
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "bookindex";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "bookindex";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Book Index";
       comp_obj_heading_.node.ocn                   = 0;
@@ -6310,9 +6310,9 @@ struct BookIndexReportSection {
       bookindex_section["seg"]                     ~= comp_obj_heading_;
       ++mkn;
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "bookindex";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "bookindex";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Index";
       comp_obj_heading_.node.ocn                   = 0;
@@ -6387,9 +6387,9 @@ struct BookIndexReportSection {
         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.typeinfo.of_part          = "backmatter";
-        comp_obj_para.typeinfo.of_section       = "bookindex";
-        comp_obj_para.typeinfo.is_of            = "para";
+        comp_obj_para.typeinfo.is_of_part       = "backmatter";
+        comp_obj_para.typeinfo.is_of_section    = "bookindex";
+        comp_obj_para.typeinfo.is_of_type       = "para";
         comp_obj_para.typeinfo.is_a             = "bookindex";
         comp_obj_para.text                      = bi_tmp_scroll.to!string.strip;
         comp_obj_para.node.ocn                  = 0;
@@ -6546,9 +6546,9 @@ struct NotesSection {
     if ((endnotes_["notes"].length > 0)
     && (opt_action.backmatter && opt_action.section_endnotes)) {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "endnotes";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "endnotes";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Endnotes";
       comp_obj_heading_.node.ocn                   = 0;
@@ -6563,9 +6563,9 @@ struct NotesSection {
       the_endnotes_section                         ~= comp_obj_heading_;
       ++mkn;
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "endnotes";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "endnotes";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Endnotes";
       comp_obj_heading_.node.ocn                   = 0;
@@ -6582,9 +6582,9 @@ struct NotesSection {
       ++mkn;
     } else {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "empty";
-      comp_obj_heading_.typeinfo.of_section        = "empty";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "empty";
+      comp_obj_heading_.typeinfo.is_of_section     = "empty";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "(skip) there are no Endnotes";
       comp_obj_heading_.node.ocn                   = 0;
@@ -6600,9 +6600,9 @@ struct NotesSection {
     if (opt_action.backmatter && opt_action.section_endnotes) {
       ObjGenericComposite comp_obj_endnote_;
       comp_obj_endnote_                            = comp_obj_endnote_.init;
-      comp_obj_endnote_.typeinfo.of_part           = "backmatter";
-      comp_obj_endnote_.typeinfo.of_section        = "endnote";
-      comp_obj_endnote_.typeinfo.is_of             = "para";
+      comp_obj_endnote_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_endnote_.typeinfo.is_of_section     = "endnote";
+      comp_obj_endnote_.typeinfo.is_of_type        = "para";
       comp_obj_endnote_.typeinfo.is_a              = "endnote";
       comp_obj_endnote_.node.ocn                   = 0;
       comp_obj_heading_.misc.object_number_off     = "";
@@ -6979,9 +6979,9 @@ struct NodeStructureMetadata {
     }
     ObjGenericComposite _comp_obj_heading_;
     _comp_obj_heading_                                  = _comp_obj_heading_.init;
-    _comp_obj_heading_.typeinfo.of_part                 = "body";
-    _comp_obj_heading_.typeinfo.of_section              = "body";
-    _comp_obj_heading_.typeinfo.is_of                   = "para";
+    _comp_obj_heading_.typeinfo.is_of_part              = "body";
+    _comp_obj_heading_.typeinfo.is_of_section           = "body";
+    _comp_obj_heading_.typeinfo.is_of_type              = "para";
     _comp_obj_heading_.typeinfo.is_a                    = "heading";
     _comp_obj_heading_.text                             = _text.to!string.strip;
     _comp_obj_heading_.node.ocn                         = obj_cite_digits.on;
@@ -7331,10 +7331,13 @@ struct HeadingAttrib {
 #+name: meta_structs_init
 #+BEGIN_SRC d
 struct DocObj_TypeInfo_ {                                   // typeinfo
-  string                 of_part                            = ""; // frontmatter, body, backmatter
-  string                 of_section                         = ""; // toc, body, glossary, biography, book index, blurb
-  string                 is_of                              = ""; // para, block ?
+  string                 is_of_part                         = ""; // frontmatter, body, backmatter
+  string                 is_of_section                      = ""; // toc, body, glossary, biography, book index, blurb
+  string                 is_of_type                         = ""; // para, block ?
   string                 is_a                               = ""; // heading, para, table, code block, group, ...
+  alias                  of_part                            = is_of_part;
+  alias                  of_section                         = is_of_section;
+  alias                  is_of                              = is_of_type;
 }
 struct DocObj_TxtAttrib_ {                                  // attrib
   int                    indent_base                        = 0;
@@ -7349,6 +7352,7 @@ struct DocObj_Has_ {                                        // has
   bool                   contains_image_without_dimensions  = false;
 }
 struct DocObj_Node_ {                                       // node
+  enum ONtype { none, substantive, non_substantive, glossary, bibliography, book_index, blurb, comment }
   string[string][string] node;
   int                    ocn                                = 0;
   string object_number() const @property {
@@ -7356,7 +7360,7 @@ struct DocObj_Node_ {                                       // node
       ? ""
       : ocn.to!string;
   }
-  string                 ocn_type                           = ""; // code duplicated typeinfo is_a
+  int                    o_n_type                           = 0;
   string                 marked_up_level                    = "9";
   int                    heading_lev_markup                 = 9;
   int                    heading_lev_collapsed              = 9;
diff --git a/src/sdp/meta/metadoc_from_src.d b/src/sdp/meta/metadoc_from_src.d
index cc9cffa..e9f930c 100644
--- a/src/sdp/meta/metadoc_from_src.d
+++ b/src/sdp/meta/metadoc_from_src.d
@@ -326,9 +326,9 @@ template SiSUdocAbstraction() {
     an_object["glossary_nugget"]                 = "";
     an_object["blurb_nugget"]                    = "";
     comp_obj_heading_                            = comp_obj_heading_.init;
-    comp_obj_heading_.typeinfo.of_part           = "frontmatter";
-    comp_obj_heading_.typeinfo.of_section        = "toc";
-    comp_obj_heading_.typeinfo.is_of             = "para";
+    comp_obj_heading_.typeinfo.is_of_part        = "frontmatter";
+    comp_obj_heading_.typeinfo.is_of_section     = "toc";
+    comp_obj_heading_.typeinfo.is_of_type        = "para";
     comp_obj_heading_.typeinfo.is_a              = "heading";
     comp_obj_heading_.text                       = "Table of Contents";
     comp_obj_heading_.node.ocn                   = 0;
@@ -466,9 +466,9 @@ template SiSUdocAbstraction() {
             an_object_key="glossary_nugget"; //
             if (line.matchFirst(rgx.heading_glossary)) {
               comp_obj_heading_                            = comp_obj_heading_.init;
-              comp_obj_heading_.typeinfo.of_part           = "backmatter";
-              comp_obj_heading_.typeinfo.of_section        = "glossary";
-              comp_obj_heading_.typeinfo.is_of             = "para";
+              comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+              comp_obj_heading_.typeinfo.is_of_section     = "glossary";
+              comp_obj_heading_.typeinfo.is_of_type        = "para";
               comp_obj_heading_.typeinfo.is_a              = "heading";
               comp_obj_heading_.text                       = "Glossary";
               comp_obj_heading_.node.ocn                   = 0;
@@ -484,9 +484,9 @@ template SiSUdocAbstraction() {
               comp_obj_heading_.node.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_.typeinfo.of_part           = "backmatter";
-              comp_obj_heading_.typeinfo.of_section        = "glossary";
-              comp_obj_heading_.typeinfo.is_of             = "para";
+              comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+              comp_obj_heading_.typeinfo.is_of_section     = "glossary";
+              comp_obj_heading_.typeinfo.is_of_type        = "para";
               comp_obj_heading_.typeinfo.is_a              = "heading";
               comp_obj_heading_.text                       = "Glossary";
               comp_obj_heading_.node.ocn                   = 0;
@@ -505,9 +505,9 @@ template SiSUdocAbstraction() {
             } else {
               _para_match_(line, an_object, an_object_key, indent, bullet, obj_type_status, line_occur);
               comp_obj_para                           = comp_obj_para.init;
-              comp_obj_para.typeinfo.of_part          = "backmatter";
-              comp_obj_para.typeinfo.of_section       = "glossary";
-              comp_obj_para.typeinfo.is_of            = "para";
+              comp_obj_para.typeinfo.is_of_part       = "backmatter";
+              comp_obj_para.typeinfo.is_of_section    = "glossary";
+              comp_obj_para.typeinfo.is_of_type       = "para";
               comp_obj_para.typeinfo.is_a             = "glossary";
               comp_obj_para.text                      = line.to!string.strip;
               comp_obj_para.node.ocn                  = 0;
@@ -574,9 +574,9 @@ template SiSUdocAbstraction() {
             an_object_key="blurb_nugget";
             if (line.matchFirst(rgx.heading_blurb)) {
               comp_obj_heading_                            = comp_obj_heading_.init;
-              comp_obj_heading_.typeinfo.of_part           = "backmatter";
-              comp_obj_heading_.typeinfo.of_section        = "blurb";
-              comp_obj_heading_.typeinfo.is_of             = "para";
+              comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+              comp_obj_heading_.typeinfo.is_of_section     = "blurb";
+              comp_obj_heading_.typeinfo.is_of_type        = "para";
               comp_obj_heading_.typeinfo.is_a              = "heading";
               comp_obj_heading_.text                       = "Blurb";
               comp_obj_heading_.node.ocn                   = 0;
@@ -592,9 +592,9 @@ template SiSUdocAbstraction() {
               comp_obj_heading_.node.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_.typeinfo.of_part           = "backmatter";
-              comp_obj_heading_.typeinfo.of_section        = "blurb";
-              comp_obj_heading_.typeinfo.is_of             = "para";
+              comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+              comp_obj_heading_.typeinfo.is_of_section     = "blurb";
+              comp_obj_heading_.typeinfo.is_of_type        = "para";
               comp_obj_heading_.typeinfo.is_a              = "heading";
               comp_obj_heading_.text                       = "Blurb";
               comp_obj_heading_.node.ocn                   = 0;
@@ -613,9 +613,9 @@ template SiSUdocAbstraction() {
             } else if (line.matchFirst(rgx.heading)
             && (opt_action.backmatter && opt_action.section_blurb)) {
               comp_obj_heading_                            = comp_obj_heading_.init;
-              comp_obj_heading_.typeinfo.of_part           = "backmatter";
-              comp_obj_heading_.typeinfo.of_section        = "blurb";
-              comp_obj_heading_.typeinfo.is_of             = "para";
+              comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+              comp_obj_heading_.typeinfo.is_of_section     = "blurb";
+              comp_obj_heading_.typeinfo.is_of_type        = "para";
               comp_obj_heading_.typeinfo.is_a              = "heading";
               comp_obj_heading_.text                       = line.to!string;
               comp_obj_heading_.node.ocn                   = 0;
@@ -631,9 +631,9 @@ template SiSUdocAbstraction() {
             } else {
               _para_match_(line, an_object, an_object_key, indent, bullet, obj_type_status, line_occur);
               comp_obj_para                           = comp_obj_para.init;
-              comp_obj_para.typeinfo.of_part          = "backmatter";
-              comp_obj_para.typeinfo.of_section       = "blurb";
-              comp_obj_para.typeinfo.is_of            = "para";
+              comp_obj_para.typeinfo.is_of_part       = "backmatter";
+              comp_obj_para.typeinfo.is_of_section    = "blurb";
+              comp_obj_para.typeinfo.is_of_type       = "para";
               comp_obj_para.typeinfo.is_a             = "blurb";
               comp_obj_para.text                      = munge.url_links(line.to!string.strip).replaceFirst(rgx.para_attribs, "");
               comp_obj_para.node.ocn                  = 0;
@@ -740,14 +740,14 @@ template SiSUdocAbstraction() {
                 debug(comment) {
                   writeln(line);
                 }
-                an_object[an_object_key]             ~= line ~= "\n";
-                comp_obj_comment                     = comp_obj_comment.init;
-                comp_obj_comment.typeinfo.of_part    = "comment"; // breaks flow
-                comp_obj_comment.typeinfo.of_section = "comment"; // breaks flow
-                comp_obj_comment.typeinfo.is_of      = "comment";
-                comp_obj_comment.typeinfo.is_a       = "comment";
-                comp_obj_comment.text                = an_object[an_object_key].strip;
-                the_document_body_section            ~= comp_obj_comment;
+                an_object[an_object_key]                ~= line ~= "\n";
+                comp_obj_comment                        = comp_obj_comment.init;
+                comp_obj_comment.typeinfo.is_of_part    = "comment"; // breaks flow
+                comp_obj_comment.typeinfo.is_of_section = "comment"; // breaks flow
+                comp_obj_comment.typeinfo.is_of_type    = "comment";
+                comp_obj_comment.typeinfo.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, obj_type_status);
                 processing.remove("verse");
                 ++cntr;
@@ -946,9 +946,9 @@ template SiSUdocAbstraction() {
               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.typeinfo.of_part                            = "body";
-              comp_obj_para.typeinfo.of_section                         = "body";
-              comp_obj_para.typeinfo.is_of                              = "para";
+              comp_obj_para.typeinfo.is_of_part                         = "body";
+              comp_obj_para.typeinfo.is_of_section                      = "body";
+              comp_obj_para.typeinfo.is_of_type                         = "para";
               comp_obj_para.typeinfo.is_a                               = "para";
               comp_obj_para.text                                        = an_object["substantive"].to!string.strip;
               comp_obj_para.node.ocn                                    = obj_cite_digits.digit;
@@ -1044,9 +1044,9 @@ template SiSUdocAbstraction() {
     }
     if (an_object["glossary_nugget"].length == 0) {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "empty";
-      comp_obj_heading_.typeinfo.of_section        = "empty";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "empty";
+      comp_obj_heading_.typeinfo.is_of_section     = "empty";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "(skip) there is no Glossary section";
       comp_obj_heading_.node.ocn                   = 0;
@@ -1072,9 +1072,9 @@ template SiSUdocAbstraction() {
       = biblio._bibliography_(biblio_unsorted_incomplete, bib_arr_json);
     if (biblio_ordered.length > 0) {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "bibliography";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "bibliography";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Bibliography";
       comp_obj_heading_.node.ocn                   = 0;
@@ -1088,9 +1088,9 @@ template SiSUdocAbstraction() {
       comp_obj_heading_.node.parent_lev_markup     = 0;
       the_bibliography_section                     ~= comp_obj_heading_;
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "backmatter";
-      comp_obj_heading_.typeinfo.of_section        = "bibliography";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+      comp_obj_heading_.typeinfo.is_of_section     = "bibliography";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "Bibliography";
       comp_obj_heading_.node.ocn                   = 0;
@@ -1106,9 +1106,9 @@ template SiSUdocAbstraction() {
       the_bibliography_section                     ~= comp_obj_heading_;
     } else {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "empty";
-      comp_obj_heading_.typeinfo.of_section        = "empty";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "empty";
+      comp_obj_heading_.typeinfo.is_of_section     = "empty";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "(skip) there is no Bibliography";
       comp_obj_heading_.node.ocn                   = 0;
@@ -1138,9 +1138,9 @@ template SiSUdocAbstraction() {
         ((entry["url"].str.empty) ? "" : ", [" ~ entry["url"].str ~ "]"),
       );
       comp_obj_para                           = comp_obj_para.init;
-      comp_obj_para.typeinfo.of_part          = "backmatter";
-      comp_obj_para.typeinfo.of_section       = "bibliography";
-      comp_obj_para.typeinfo.is_of            = "para";
+      comp_obj_para.typeinfo.is_of_part       = "backmatter";
+      comp_obj_para.typeinfo.is_of_section    = "bibliography";
+      comp_obj_para.typeinfo.is_of_type       = "para";
       comp_obj_para.typeinfo.is_a             = "bibliography";
       comp_obj_para.text                      = out_.to!string.strip;
       comp_obj_para.node.ocn                  = 0;
@@ -1175,9 +1175,9 @@ template SiSUdocAbstraction() {
     }
     if (an_object["blurb_nugget"].length == 0) {
       comp_obj_heading_                            = comp_obj_heading_.init;
-      comp_obj_heading_.typeinfo.of_part           = "empty";
-      comp_obj_heading_.typeinfo.of_section        = "empty";
-      comp_obj_heading_.typeinfo.is_of             = "para";
+      comp_obj_heading_.typeinfo.is_of_part        = "empty";
+      comp_obj_heading_.typeinfo.is_of_section     = "empty";
+      comp_obj_heading_.typeinfo.is_of_type        = "para";
       comp_obj_heading_.typeinfo.is_a              = "heading";
       comp_obj_heading_.text                       = "(skip) there is no Blurb section";
       comp_obj_heading_.node.ocn                   = 0;
@@ -1201,9 +1201,9 @@ template SiSUdocAbstraction() {
       "base_position" : 1,
     ];
     comp_obj_toc                           = comp_obj_toc.init;
-    comp_obj_toc.typeinfo.of_part          = "frontmatter";
-    comp_obj_toc.typeinfo.of_section       = "toc";
-    comp_obj_toc.typeinfo.is_of            = "para";
+    comp_obj_toc.typeinfo.is_of_part       = "frontmatter";
+    comp_obj_toc.typeinfo.is_of_section    = "toc";
+    comp_obj_toc.typeinfo.is_of_type       = "para";
     comp_obj_toc.typeinfo.is_a             = "toc";
     comp_obj_toc.node.ocn                  = 0;
     comp_obj_toc.misc.object_number_off    = "";
@@ -1812,9 +1812,9 @@ template SiSUdocAbstraction() {
           - obj.node.dom_collapsed = dom_collapsed;
       +/
     comp_obj_heading_                            = comp_obj_heading_.init;
-    comp_obj_heading_.typeinfo.of_part           = "empty";
-    comp_obj_heading_.typeinfo.of_section        = "empty";
-    comp_obj_heading_.typeinfo.is_of             = "para";
+    comp_obj_heading_.typeinfo.is_of_part        = "empty";
+    comp_obj_heading_.typeinfo.is_of_section     = "empty";
+    comp_obj_heading_.typeinfo.is_of_type        = "para";
     comp_obj_heading_.typeinfo.is_a              = "heading";
     comp_obj_heading_.node.ocn                   = 0;
     comp_obj_para.misc.object_number_off         = "";
@@ -2388,9 +2388,9 @@ template SiSUdocAbstraction() {
             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.typeinfo.of_part              = "body";
-            comp_obj_block.typeinfo.of_section           = "body";
-            comp_obj_block.typeinfo.is_of                = "block";
+            comp_obj_block.typeinfo.is_of_part           = "body";
+            comp_obj_block.typeinfo.is_of_section        = "body";
+            comp_obj_block.typeinfo.is_of_type           = "block";
             comp_obj_block.typeinfo.is_a                 = "verse";
             comp_obj_block.node.ocn                      = obj_cite_digits.on;
             comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -2445,9 +2445,9 @@ template SiSUdocAbstraction() {
           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.typeinfo.of_part              = "body";
-          comp_obj_block.typeinfo.of_section           = "body";
-          comp_obj_block.typeinfo.is_of                = "block";
+          comp_obj_block.typeinfo.is_of_part           = "body";
+          comp_obj_block.typeinfo.is_of_section        = "body";
+          comp_obj_block.typeinfo.is_of_type           = "block";
           comp_obj_block.typeinfo.is_a                 = "verse";
           comp_obj_block.node.ocn                      = obj_cite_digits.on;
           comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -2487,9 +2487,9 @@ template SiSUdocAbstraction() {
           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.typeinfo.of_part              = "body";
-          comp_obj_block.typeinfo.of_section           = "body";
-          comp_obj_block.typeinfo.is_of                = "block";
+          comp_obj_block.typeinfo.is_of_part           = "body";
+          comp_obj_block.typeinfo.is_of_section        = "body";
+          comp_obj_block.typeinfo.is_of_type           = "block";
           comp_obj_block.typeinfo.is_a                 = "verse";
           comp_obj_block.node.ocn                      = obj_cite_digits.on;
           comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -2544,9 +2544,9 @@ template SiSUdocAbstraction() {
           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.typeinfo.of_part              = "body";
-          comp_obj_block.typeinfo.of_section           = "body";
-          comp_obj_block.typeinfo.is_of                = "block";
+          comp_obj_block.typeinfo.is_of_part           = "body";
+          comp_obj_block.typeinfo.is_of_section        = "body";
+          comp_obj_block.typeinfo.is_of_type           = "block";
           comp_obj_block.typeinfo.is_a                 = "verse";
           comp_obj_block.node.ocn                      = obj_cite_digits.on;
           comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -2902,9 +2902,9 @@ template SiSUdocAbstraction() {
       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.typeinfo.of_part              = "body";
-      comp_obj_block.typeinfo.of_section           = "body";
-      comp_obj_block.typeinfo.is_of                = "block";
+      comp_obj_block.typeinfo.is_of_part           = "body";
+      comp_obj_block.typeinfo.is_of_section        = "body";
+      comp_obj_block.typeinfo.is_of_type           = "block";
       comp_obj_block.typeinfo.is_a                 = "quote";
       comp_obj_block.node.ocn                      = obj_cite_digits.on;
       comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -2945,9 +2945,9 @@ template SiSUdocAbstraction() {
       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.typeinfo.of_part              = "body";
-      comp_obj_block.typeinfo.of_section           = "body";
-      comp_obj_block.typeinfo.is_of                = "block";
+      comp_obj_block.typeinfo.is_of_part           = "body";
+      comp_obj_block.typeinfo.is_of_section        = "body";
+      comp_obj_block.typeinfo.is_of_type           = "block";
       comp_obj_block.typeinfo.is_a                 = "group";
       comp_obj_block.node.ocn                      = obj_cite_digits.on;
       comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -2987,9 +2987,9 @@ template SiSUdocAbstraction() {
         = obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, conf_make_meta);
       an_object["substantive"]                     = substantive_obj_misc_tuple[sObj.content];
       comp_obj_block                               = comp_obj_block.init;
-      comp_obj_block.typeinfo.of_part              = "body";
-      comp_obj_block.typeinfo.of_section           = "body";
-      comp_obj_block.typeinfo.is_of                = "block";
+      comp_obj_block.typeinfo.is_of_part           = "body";
+      comp_obj_block.typeinfo.is_of_section        = "body";
+      comp_obj_block.typeinfo.is_of_type           = "block";
       comp_obj_block.typeinfo.is_a                 = "block";
       comp_obj_block.node.ocn                      = obj_cite_digits.on;
       comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3025,9 +3025,9 @@ template SiSUdocAbstraction() {
           an_object["is"]
         );
       comp_obj_poem_ocn                               = comp_obj_poem_ocn.init;
-      comp_obj_poem_ocn.typeinfo.of_part              = "body";
-      comp_obj_poem_ocn.typeinfo.of_section           = "body";
-      comp_obj_poem_ocn.typeinfo.is_of                = "block";
+      comp_obj_poem_ocn.typeinfo.is_of_part           = "body";
+      comp_obj_poem_ocn.typeinfo.is_of_section        = "body";
+      comp_obj_poem_ocn.typeinfo.is_of_type           = "block";
       comp_obj_poem_ocn.typeinfo.is_a                 = "poem";
       comp_obj_poem_ocn.node.ocn                      = obj_cite_digits.on;
       comp_obj_poem_ocn.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string; //
@@ -3064,9 +3064,9 @@ template SiSUdocAbstraction() {
       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.typeinfo.of_part               = "body";
-      comp_obj_code.typeinfo.of_section            = "body";
-      comp_obj_code.typeinfo.is_of                 = "block";
+      comp_obj_code.typeinfo.is_of_part            = "body";
+      comp_obj_code.typeinfo.is_of_section         = "body";
+      comp_obj_code.typeinfo.is_of_type            = "block";
       comp_obj_code.typeinfo.is_a                  = "code";
       comp_obj_code.node.ocn                       = obj_cite_digits.on;
       comp_obj_block.misc.object_number_off        = (obj_cite_digits.off==0)   ? "" : obj_cite_digits.off.to!string;
@@ -3563,9 +3563,9 @@ template SiSUdocAbstraction() {
     return ref H  table_head,
   ) {
     static auto rgx = Rgx();
-    table_object.typeinfo.of_part         = "body";
-    table_object.typeinfo.of_section      = "body";
-    table_object.typeinfo.is_of           = "block";
+    table_object.typeinfo.is_of_part      = "body";
+    table_object.typeinfo.is_of_section   = "body";
+    table_object.typeinfo.is_of_type      = "block";
     table_object.typeinfo.is_a            = "table";
     table_object.has.inline_notes_reg     = false;
     table_object.has.inline_notes_star    = false;
@@ -4303,9 +4303,9 @@ template SiSUdocAbstraction() {
         );
         toc_txt_= munge.url_links(toc_txt_);
         comp_obj_toc                            = comp_obj_toc.init;
-        comp_obj_toc.typeinfo.of_part           = "frontmatter";
-        comp_obj_toc.typeinfo.of_section        = "toc";
-        comp_obj_toc.typeinfo.is_of             = "para";
+        comp_obj_toc.typeinfo.is_of_part        = "frontmatter";
+        comp_obj_toc.typeinfo.is_of_section     = "toc";
+        comp_obj_toc.typeinfo.is_of_type        = "para";
         comp_obj_toc.typeinfo.is_a              = "toc";
         comp_obj_toc.node.ocn                   = 0;
         comp_obj_toc.misc.object_number_off     = "";
@@ -4322,9 +4322,9 @@ template SiSUdocAbstraction() {
           "base_position" : 0,
         ];
         comp_obj_toc                            = comp_obj_toc.init;
-        comp_obj_toc.typeinfo.of_part           = "frontmatter";
-        comp_obj_toc.typeinfo.of_section        = "toc";
-        comp_obj_toc.typeinfo.is_of             = "para";
+        comp_obj_toc.typeinfo.is_of_part        = "frontmatter";
+        comp_obj_toc.typeinfo.is_of_section     = "toc";
+        comp_obj_toc.typeinfo.is_of_type        = "para";
         comp_obj_toc.typeinfo.is_a              = "toc";
         comp_obj_toc.node.ocn                   = 0;
         comp_obj_toc.misc.object_number_off     = "";
@@ -4337,9 +4337,9 @@ template SiSUdocAbstraction() {
         the_table_of_contents_section["scroll"] ~= comp_obj_toc;
       }
       comp_obj_toc                              = comp_obj_toc.init;
-      comp_obj_toc.typeinfo.of_part             = "frontmatter";
-      comp_obj_toc.typeinfo.of_section          = "toc";
-      comp_obj_toc.typeinfo.is_of               = "para";
+      comp_obj_toc.typeinfo.is_of_part          = "frontmatter";
+      comp_obj_toc.typeinfo.is_of_section       = "toc";
+      comp_obj_toc.typeinfo.is_of_type          = "para";
       comp_obj_toc.typeinfo.is_a                = "toc";
       comp_obj_toc.node.ocn                     = 0;
       comp_obj_toc.misc.object_number_off       = "";
@@ -5039,9 +5039,9 @@ template SiSUdocAbstraction() {
         string bi_tmp_seg, bi_tmp_scroll;
         string[] bi_tmp_tags;
         comp_obj_heading_                            = comp_obj_heading_.init;
-        comp_obj_heading_.typeinfo.of_part           = "backmatter";
-        comp_obj_heading_.typeinfo.of_section        = "bookindex";
-        comp_obj_heading_.typeinfo.is_of             = "para";
+        comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+        comp_obj_heading_.typeinfo.is_of_section     = "bookindex";
+        comp_obj_heading_.typeinfo.is_of_type        = "para";
         comp_obj_heading_.typeinfo.is_a              = "heading";
         comp_obj_heading_.text                       = "Book Index";
         comp_obj_heading_.node.ocn                   = 0;
@@ -5058,9 +5058,9 @@ template SiSUdocAbstraction() {
         bookindex_section["seg"]                     ~= comp_obj_heading_;
         ++mkn;
         comp_obj_heading_                            = comp_obj_heading_.init;
-        comp_obj_heading_.typeinfo.of_part           = "backmatter";
-        comp_obj_heading_.typeinfo.of_section        = "bookindex";
-        comp_obj_heading_.typeinfo.is_of             = "para";
+        comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+        comp_obj_heading_.typeinfo.is_of_section     = "bookindex";
+        comp_obj_heading_.typeinfo.is_of_type        = "para";
         comp_obj_heading_.typeinfo.is_a              = "heading";
         comp_obj_heading_.text                       = "Index";
         comp_obj_heading_.node.ocn                   = 0;
@@ -5135,9 +5135,9 @@ template SiSUdocAbstraction() {
           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.typeinfo.of_part          = "backmatter";
-          comp_obj_para.typeinfo.of_section       = "bookindex";
-          comp_obj_para.typeinfo.is_of            = "para";
+          comp_obj_para.typeinfo.is_of_part       = "backmatter";
+          comp_obj_para.typeinfo.is_of_section    = "bookindex";
+          comp_obj_para.typeinfo.is_of_type       = "para";
           comp_obj_para.typeinfo.is_a             = "bookindex";
           comp_obj_para.text                      = bi_tmp_scroll.to!string.strip;
           comp_obj_para.node.ocn                  = 0;
@@ -5265,9 +5265,9 @@ template SiSUdocAbstraction() {
       if ((endnotes_["notes"].length > 0)
       && (opt_action.backmatter && opt_action.section_endnotes)) {
         comp_obj_heading_                            = comp_obj_heading_.init;
-        comp_obj_heading_.typeinfo.of_part           = "backmatter";
-        comp_obj_heading_.typeinfo.of_section        = "endnotes";
-        comp_obj_heading_.typeinfo.is_of             = "para";
+        comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+        comp_obj_heading_.typeinfo.is_of_section     = "endnotes";
+        comp_obj_heading_.typeinfo.is_of_type        = "para";
         comp_obj_heading_.typeinfo.is_a              = "heading";
         comp_obj_heading_.text                       = "Endnotes";
         comp_obj_heading_.node.ocn                   = 0;
@@ -5282,9 +5282,9 @@ template SiSUdocAbstraction() {
         the_endnotes_section                         ~= comp_obj_heading_;
         ++mkn;
         comp_obj_heading_                            = comp_obj_heading_.init;
-        comp_obj_heading_.typeinfo.of_part           = "backmatter";
-        comp_obj_heading_.typeinfo.of_section        = "endnotes";
-        comp_obj_heading_.typeinfo.is_of             = "para";
+        comp_obj_heading_.typeinfo.is_of_part        = "backmatter";
+        comp_obj_heading_.typeinfo.is_of_section     = "endnotes";
+        comp_obj_heading_.typeinfo.is_of_type        = "para";
         comp_obj_heading_.typeinfo.is_a              = "heading";
         comp_obj_heading_.text                       = "Endnotes";
         comp_obj_heading_.node.ocn                   = 0;
@@ -5301,9 +5301,9 @@ template SiSUdocAbstraction() {
         ++mkn;
       } else {
         comp_obj_heading_                            = comp_obj_heading_.init;
-        comp_obj_heading_.typeinfo.of_part           = "empty";
-        comp_obj_heading_.typeinfo.of_section        = "empty";
-        comp_obj_heading_.typeinfo.is_of             = "para";
+        comp_obj_heading_.typeinfo.is_of_part        = "empty";
+        comp_obj_heading_.typeinfo.is_of_section     = "empty";
+        comp_obj_heading_.typeinfo.is_of_type        = "para";
         comp_obj_heading_.typeinfo.is_a              = "heading";
         comp_obj_heading_.text                       = "(skip) there are no Endnotes";
         comp_obj_heading_.node.ocn                   = 0;
@@ -5319,9 +5319,9 @@ template SiSUdocAbstraction() {
       if (opt_action.backmatter && opt_action.section_endnotes) {
         ObjGenericComposite comp_obj_endnote_;
         comp_obj_endnote_                            = comp_obj_endnote_.init;
-        comp_obj_endnote_.typeinfo.of_part           = "backmatter";
-        comp_obj_endnote_.typeinfo.of_section        = "endnote";
-        comp_obj_endnote_.typeinfo.is_of             = "para";
+        comp_obj_endnote_.typeinfo.is_of_part        = "backmatter";
+        comp_obj_endnote_.typeinfo.is_of_section     = "endnote";
+        comp_obj_endnote_.typeinfo.is_of_type        = "para";
         comp_obj_endnote_.typeinfo.is_a              = "endnote";
         comp_obj_endnote_.node.ocn                   = 0;
         comp_obj_heading_.misc.object_number_off     = "";
@@ -5638,9 +5638,9 @@ template SiSUdocAbstraction() {
       }
       ObjGenericComposite _comp_obj_heading_;
       _comp_obj_heading_                                  = _comp_obj_heading_.init;
-      _comp_obj_heading_.typeinfo.of_part                 = "body";
-      _comp_obj_heading_.typeinfo.of_section              = "body";
-      _comp_obj_heading_.typeinfo.is_of                   = "para";
+      _comp_obj_heading_.typeinfo.is_of_part              = "body";
+      _comp_obj_heading_.typeinfo.is_of_section           = "body";
+      _comp_obj_heading_.typeinfo.is_of_type              = "para";
       _comp_obj_heading_.typeinfo.is_a                    = "heading";
       _comp_obj_heading_.text                             = _text.to!string.strip;
       _comp_obj_heading_.node.ocn                         = obj_cite_digits.on;
diff --git a/src/sdp/meta/object_setter.d b/src/sdp/meta/object_setter.d
index 967f9ec..77e44e0 100644
--- a/src/sdp/meta/object_setter.d
+++ b/src/sdp/meta/object_setter.d
@@ -7,10 +7,13 @@ module sdp.meta.object_setter;
 template ObjectSetter() {
   /+ structs +/
   struct DocObj_TypeInfo_ {                                   // typeinfo
-    string                 of_part                            = ""; // frontmatter, body, backmatter
-    string                 of_section                         = ""; // toc, body, glossary, biography, book index, blurb
-    string                 is_of                              = ""; // para, block ?
+    string                 is_of_part                         = ""; // frontmatter, body, backmatter
+    string                 is_of_section                      = ""; // toc, body, glossary, biography, book index, blurb
+    string                 is_of_type                         = ""; // para, block ?
     string                 is_a                               = ""; // heading, para, table, code block, group, ...
+    alias                  of_part                            = is_of_part;
+    alias                  of_section                         = is_of_section;
+    alias                  is_of                              = is_of_type;
   }
   struct DocObj_TxtAttrib_ {                                  // attrib
     int                    indent_base                        = 0;
@@ -25,6 +28,7 @@ template ObjectSetter() {
     bool                   contains_image_without_dimensions  = false;
   }
   struct DocObj_Node_ {                                       // node
+    enum ONtype { none, substantive, non_substantive, glossary, bibliography, book_index, blurb, comment }
     string[string][string] node;
     int                    ocn                                = 0;
     string object_number() const @property {
@@ -32,7 +36,7 @@ template ObjectSetter() {
         ? ""
         : ocn.to!string;
     }
-    string                 ocn_type                           = ""; // code duplicated typeinfo is_a
+    int                    o_n_type                           = 0;
     string                 marked_up_level                    = "9";
     int                    heading_lev_markup                 = 9;
     int                    heading_lev_collapsed              = 9;