step3

8 files changed, 304 insertions, 263 deletions

diff --git a/lib/sdp/ao_abstract_doc_source.d b/lib/sdp/ao_abstract_doc_source.d
index 74d1baa..00cff5c 100644
--- a/lib/sdp/ao_abstract_doc_source.d
+++ b/lib/sdp/ao_abstract_doc_source.d
@@ -25,7 +25,8 @@ template SiSUdocAbstraction() {
     /+ initialize +/
     
     auto rgx = Rgx();
-    string[string][] contents_the_objects;
+    ObjComposite[] contents_the_objects;
+    
     string[string] an_object, processing;
     auto set_abstract_object = ObjectAbstractSet();
     auto set_header = HeaderDocMetadataMakeJson();
@@ -212,7 +213,8 @@ template SiSUdocAbstraction() {
         }
         scope(failure) {
           stderr.writefln(
-            "%s:%s failed here:\n  line: %s",
+            "%s\n%s\n%s:%s failed here:\n  line: %s",
+            __MODULE__, __FUNCTION__,
             __FILE__, __LINE__,
             line,
           );
@@ -458,12 +460,11 @@ template SiSUdocAbstraction() {
                 ++heading_pointer;
                 contents_the_objects ~=
                   set_abstract_object.contents_heading(
-                    type["obj_cite_number_status"],
                     an_object["substantive"],
                     an_object["attrib"],
-                    obj_cite_number, an_object["lev"],
-                    an_object["lev_markup_number"],
-                    an_object["lev_collapsed_number"]
+                    obj_cite_number,
+                    to!int(an_object["lev_markup_number"]),
+                    to!int(an_object["lev_collapsed_number"])
                   );
                 // track previous heading and make assertions
                 debug(objectrelated1) { // check
@@ -534,10 +535,10 @@ template SiSUdocAbstraction() {
             } // close else for line empty
           } // close else for not the above
         } // close after non code, other blocks or regular text
-        if (((contents_the_objects[$-1]["is"] == "para")
-        || (contents_the_objects[$-1]["is"] == "heading"))
+        if (((contents_the_objects[$-1].is_a == "para")
+        || (contents_the_objects[$-1].is_a == "heading"))
         && (counter-1 > previous_count)) {
-          if (match(contents_the_objects[$-1]["obj"],
+          if (match(contents_the_objects[$-1].object,
           rgx.inline_notes_delimiter_al_regular_number_note)) {
             // endnotes/ footnotes for
             // doc objects other than paragraphs & headings
@@ -1408,7 +1409,7 @@ template SiSUdocAbstraction() {
     auto block_flag_line_empty(
       char[] line,
       ref string[string] an_object,
-      ref string[string][] contents_the_objects,
+      ref ObjComposite[] contents_the_objects,
       ref string[][string][string] bookindex_unordered_hashes,
       ref int obj_cite_number,
       ref string node,
@@ -2948,7 +2949,6 @@ template SiSUdocAbstraction() {
       }
     }
     struct BookIndexReportSection {
-      mixin ObjectSetter;
       int mkn, skn;
       auto rgx = Rgx();
       auto bookindex_write_section(
@@ -2982,7 +2982,6 @@ template SiSUdocAbstraction() {
         int obj_cite_number
       ) {
         string type;
-        int type_heading;
         string lev, lev_markup_number, lev_collapsed_number;
         string attrib;
         string[string] indent;
@@ -2990,43 +2989,35 @@ template SiSUdocAbstraction() {
         auto mainkeys =
           bookindex_unordered_hashes.byKey.array.sort().release;
         string bi_tmp;
-        string[string][] bookindex_section;
+        ObjComposite[] bookindex_section;
         // writeln(mainkeys.length);
         // B~ Book Index
-        type_heading=1;
-        bi_tmp = "Book Index";
         attrib="";
         lev="B";
         lev_markup_number="1";
         lev_collapsed_number="1";
         bookindex_section ~=
           set_abstract_object.contents_heading(
-            type_heading,
-            bi_tmp,
+            "Book Index",
             attrib,
             obj_cite_number,
-            lev,
-            lev_markup_number,
-            lev_collapsed_number
+            to!int(lev_markup_number),
+            to!int(lev_collapsed_number)
           );
         ++obj_cite_number;
         ++mkn;
         // 1~ Index
-        type_heading=1;
-        bi_tmp = "Index";
         attrib="";
         lev="1";
         lev_markup_number="4";
         lev_collapsed_number="2";
         bookindex_section ~=
           set_abstract_object.contents_heading(
-            type_heading,
-            bi_tmp,
+            "Index",
             attrib,
             obj_cite_number,
-            lev,
-            lev_markup_number,
-            lev_collapsed_number
+            to!int(lev_markup_number),
+            to!int(lev_collapsed_number)
           );
         ++obj_cite_number;
         ++mkn;
@@ -3115,31 +3106,30 @@ template SiSUdocAbstraction() {
       }
     }
     struct NotesSection {
-      mixin ObjectSetter;
       string object_notes;
       long previous_count;
       int mkn;
       auto rgx = Rgx();
       private auto gather_notes_for_endnote_section(
-        string[string][] contents_am,
-        long counter
+        ObjComposite[] contents_am,
+        ulong counter
       )
       in {
         // endnotes/ footnotes for
         // doc objects other than paragraphs & headings
         // various forms of grouped text
-        assert((contents_am[counter]["is"] == "para")
-        || (contents_am[counter]["is"] == "heading"));
+        assert((contents_am[counter].is_a == "para")
+        || (contents_am[counter].is_a == "heading"));
         assert(counter > previous_count);
         previous_count=counter;
         assert(
-          match(contents_am[counter]["obj"],
+          match(contents_am[counter].object,
           rgx.inline_notes_delimiter_al_regular_number_note)
         );
       }
       body {
         foreach(m;
-        matchAll(contents_am[counter]["obj"],
+        matchAll(contents_am[counter].object,
         rgx.inline_notes_delimiter_al_regular_number_note)) {
           debug(endnotes_build) {
             writeln(
@@ -3168,47 +3158,40 @@ template SiSUdocAbstraction() {
       }
       body {
         auto set_abstract_object = ObjectAbstractSet();
-        string[string][] endnotes_section;
+        ObjComposite[] endnotes_section;
         auto endnotes_ = gathered_notes();
         // auto endnotes_ = (split(object_notes, rgx.break_string))[0..$-1];
         string type;
-        int type_heading;
         string lev, lev_markup_number, lev_collapsed_number;
         string attrib;
         string[string] indent;
         // B~ Endnotes
-        type_heading=1;
         attrib="";
         lev="B";
         lev_markup_number="1";
         lev_collapsed_number="1";
         endnotes_section ~=
           set_abstract_object.contents_heading(
-            type_heading,
             "Endnotes",
             attrib,
             obj_cite_number,
-            lev,
-            lev_markup_number,
-            lev_collapsed_number
+            to!int(lev_markup_number),
+            to!int(lev_collapsed_number)
           );
         ++obj_cite_number;
         ++mkn;
         // 1~ Endnotes
-        type_heading=1;
         attrib="";
         lev="1";
         lev_markup_number="4";
         lev_collapsed_number="2";
         endnotes_section ~=
           set_abstract_object.contents_heading(
-            type_heading,
             "Endnotes",
             attrib,
             obj_cite_number,
-            lev,
-            lev_markup_number,
-            lev_collapsed_number
+            to!int(lev_markup_number),
+            to!int(lev_collapsed_number)
           );
         ++obj_cite_number;
         ++mkn;
diff --git a/lib/sdp/ao_object_setter.d b/lib/sdp/ao_object_setter.d
index a44aeb0..4492e8a 100644
--- a/lib/sdp/ao_object_setter.d
+++ b/lib/sdp/ao_object_setter.d
@@ -3,42 +3,74 @@
   ao_object_setter.d
 +/
 template ObjectSetter() {
+  /+ structs +/
+  struct HeadingAttrib {
+    int lev                   = 9;   // use of enum should make this redundant, remove
+    int lev_markup_number     = 9;
+    int lev_collapsed_number  = 9;
+  }
+  struct ParaAttrib {
+    int indent_first          = 0;
+    int indent_second         = 0;
+    bool bullet               = false;
+  }
+  struct BlockAttrib {
+  }
+  struct Comment {
+    // no .attrib and no .obj_cite_number
+  }
+  struct Node {
+    int ocn                    = 0;
+    int parent_lev             = 0;
+    int parent_ocn             = 0;
+    string node                = "";
+  }
+  struct ObjComposite {
+    // size_t id;
+    string use                 = "";
+    string of                  = "";
+    string is_a                = "";
+    string object              = "";
+    string obj_cite_number     = "";  // not used for calculations? output only? else int
+    HeadingAttrib heading_attrib;
+    ParaAttrib para_attrib;
+    BlockAttrib block_attrib;
+    Node node_structure;
+  }
+  struct ObjCompositeArr {
+    ObjComposite[] oca;
+  }
+
+  /+ structs setter +/
   struct ObjectAbstractSet {
     import std.conv : to;
-    string[string] contents_comment(in string object) {
-      string[string] object_set;
-      object_set["use"]           = "comment";
-      object_set["of"]            = "comment";
-      object_set["is"]            = "comment";
-      object_set["obj"]           = object;
-      // object_set["attrib"]     = attrib;
+    auto contents_comment(in string object) {
+      ObjComposite object_set;
+      object_set.use                  = "comment";
+      object_set.of                   = "comment";
+      object_set.is_a                 = "comment";
+      object_set.object               = object;
       return object_set;
     }
-    string[string] contents_heading(
-      in int type,
+    auto contents_heading(
       in string object,
       in string attrib,
       in int obj_cite_number,
-      in string lev,
-      in string lev_markup_number,
-      in string lev_collapsed_number,
+      in int lev_markup_number,
+      in int lev_collapsed_number,
     ) {
-      string[string] object_set;
-      object_set["use"]                  = "content";
-      object_set["of"]                   = "para";
-      object_set["is"]                   = "heading";
-      object_set["type"]                 = to!string(type);
-      // object_set["is"]                = type; // "heading" "heading_dummy"
-      object_set["obj"]                  = object;
-      object_set["obj_cite_number"]      = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
-      object_set["lev"]                  = to!string(lev);
-      object_set["lev_markup_number"]    = to!string(lev_markup_number);
-      object_set["lev_collapsed_number"] = to!string(lev_collapsed_number);
-      object_set["attrib"]               = attrib;
-      // object_set["children"]          = children;
+      ObjComposite object_set;
+      object_set.use                                 = "content";
+      object_set.of                                  = "para";
+      object_set.is_a                                = "heading";
+      object_set.object                              = object;
+      object_set.obj_cite_number                     = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+      object_set.heading_attrib.lev_markup_number    = lev_markup_number;
+      object_set.heading_attrib.lev_collapsed_number = lev_collapsed_number;
+      // object_set.node_structure.node               = node;
       return object_set;
     }
-    string[string] contents_para(
+    auto contents_para(
       in string is_a,
       in string object,
       in string attrib,
@@ -46,48 +78,46 @@ template ObjectSetter() {
       in string[string] indent,
       in bool bullet
     ) {
-      string[string] object_set;
-      object_set["use"]              = "content";
-      object_set["of"]               = "para";
-      object_set["is"]               = is_a;
-      // object_set["status"]        = status;
-      object_set["obj"]              = object;
-      object_set["obj_cite_number"]  = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
-      object_set["indent_first"]     = indent["first"];
-      object_set["indent_second"]    = indent["second"];
-      object_set["bullet"]           = to!string(bullet);
-      object_set["attrib"]           = attrib;
+      ObjComposite object_set;
+      object_set.use                 = "content";
+      object_set.of                  = "para";
+      object_set.is_a                = "para";
+      object_set.object              = object;
+      object_set.obj_cite_number     = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+      object_set.para_attrib.indent_first   = 0; // indent["first"];
+      object_set.para_attrib.indent_second  = 0; // indent["second"];
+      object_set.para_attrib.bullet         = false;
+      // object_set.node_structure.node               = node;
       return object_set;
     }
-    string[string] contents_block(
+    auto contents_block(
       in string type,
       in string object,
       in string attrib,
       in int obj_cite_number
     ) {
-      string[string] object_set;
-      object_set["use"]             = "content";
-      object_set["of"]              = "block";
-      object_set["is"]              = type;
-      object_set["obj"]             = object;
-      object_set["obj_cite_number"] = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
-      object_set["attrib"]          = attrib;
+      ObjComposite object_set;
+      object_set.use                 = "content";
+      object_set.of                  = "block";
+      object_set.is_a                = type;
+      object_set.object              = object;
+      object_set.obj_cite_number     = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+      // object_set.node_structure.node               = node;
       return object_set;
     }
-    string[string] contents_block_obj_cite_number_string(
+    auto contents_block_obj_cite_number_string(
       in string type,
       in string object,
       in string obj_cite_number,
       in string node
     ) {
-      string[string] object_set;
-      object_set["use"]             = "content";
-      object_set["of"]              = "block";
-      object_set["is"]              = type;
-      object_set["obj"]             = object;
-      object_set["obj_cite_number"] = obj_cite_number;
-      object_set["node"]            = node;
-      // object_set["attrib"]       = "";
+      ObjComposite object_set;
+      object_set.use                               = "content";
+      object_set.of                                = "block";
+      object_set.is_a                              = type;
+      object_set.object                            = object;
+      object_set.obj_cite_number                   = obj_cite_number;
+      object_set.node_structure.node               = node;
       return object_set;
     }
   }
diff --git a/lib/sdp/ao_output_debugs.d b/lib/sdp/ao_output_debugs.d
index 020474e..9c66312 100644
--- a/lib/sdp/ao_output_debugs.d
+++ b/lib/sdp/ao_output_debugs.d
@@ -4,14 +4,18 @@
 +/
 template SiSUoutputDebugs() {
   struct SDPoutputDebugs {
-    auto abstract_doc_source_debugs(
-      string[string][] contents,
-      JSONValue[string] docmake,
-      JSONValue[string] dochead,
+    auto tst_debugs(S)(auto ref const S s) {
+      mixin RgxInit;
+      mixin ScreenTxtColors;
+      auto rgx = Rgx();
+    }
+    auto abstract_doc_source_debugs(S)(auto ref const S contents,
+      JSONValue[string]        docmake,
+      JSONValue[string]        dochead,
       string[][string][string] bookindex_unordered_hashes,
-      JSONValue[] biblio,
-      string fn_src,
-      bool[string] opt_action_bool
+      JSONValue[]              biblio,
+      string                   fn_src,
+      bool[string]             opt_action_bool
     ) {
       mixin RgxInit;
       mixin ScreenTxtColors;
@@ -23,15 +27,15 @@ template SiSUoutputDebugs() {
           __LINE__,
         );
         foreach (obj; contents) {
-          if (obj["use"] == "content") {
-            if (obj["is"] == "heading") {
+          if (obj.use == "content") {
+            if (obj.is_a == "heading") {
               writefln(
                 "%s%s node: %s heading: %s %s",
                 scr_txt_marker["cyan"],
-                obj["obj_cite_number"],
-                obj["node"],
-                obj["lev_markup_number"],
-                obj["obj"],
+                obj.obj_cite_number,
+                obj.node,
+                obj.lev_markup_number,
+                obj.object,
               );
             } else {
             }
@@ -46,12 +50,12 @@ template SiSUoutputDebugs() {
           __LINE__,
         );
         foreach (obj; contents) {
-          if (obj["use"] == "content") {
+          if (obj.use == "content") {
             writefln(
               "[%s][%s]\n%s",
-              obj["obj_cite_number"],
-              obj["is"],
-              obj["obj"]
+              obj.obj_cite_number,
+              obj.is_a,
+              obj.object
             );
           }
         }
@@ -64,14 +68,14 @@ template SiSUoutputDebugs() {
           __LINE__,
         );
         foreach (obj; contents) {
-          if (obj["use"] == "content") {
+          if (obj.use == "content") {
             writefln(
               "%s* [%s][%s] %s%s",
               scr_txt_color["green"],
-              obj["obj_cite_number"],
-              obj["is"],
+              obj.obj_cite_number,
+              obj.is_a,
               scr_txt_color["off"],
-              obj["obj"]
+              obj.object
             );
           }
         }
@@ -240,9 +244,9 @@ template SiSUoutputDebugs() {
         ];
         debug(checkdoc) {
           foreach (obj; contents) {
-            if (obj["use"] == "content") {
-              if (!empty(obj["obj_cite_number"])) {
-                check["last_obj_cite_number"] = obj["obj_cite_number"];
+            if (obj.use == "content") {
+              if (!empty(obj.obj_cite_number)) {
+                check["last_obj_cite_number"] = obj.obj_cite_number;
               }
             }
           }
@@ -255,14 +259,14 @@ template SiSUoutputDebugs() {
             __LINE__,
           );
           foreach (obj; contents) {
-            if (obj["is"] == "heading") {
+            if (obj.is_a == "heading") {
               writefln(
                 "%s%s~ [%s] %s",
                 scr_txt_marker["yellow"],
-                obj["lev"],
-                obj["obj_cite_number"],
+                obj.heading_attrib.lev,
+                obj.obj_cite_number,
                 // "[", obj["is"], "] ",
-                obj["obj"]
+                obj.object
               );
             }
           }
diff --git a/makefile b/makefile
index a066fba..430ca1a 100644
--- a/makefile
+++ b/makefile
@@ -15,7 +15,7 @@ GDC_FLAG_BINOF=-o
 RDMD=rdmd
 RDMD_FLAGS=--build-only --compiler=
 # SET_D_COMPILER=(one of: DMD LDC or GDC):
-SET_D_COMPILER=LDC
+SET_D_COMPILER=DMD
 SET_DC_FLAGS_DEBUG_EXTRA=-debug=dumpdoc
 DC=$($(SET_D_COMPILER))
 DC_FLAGS=$($(shell echo $(SET_D_COMPILER)_FLAGS))
diff --git a/maker.org b/maker.org
index 74b8291..b2b7ba0 100644
--- a/maker.org
+++ b/maker.org
@@ -61,10 +61,10 @@ RDMD_FLAGS=--build-only --compiler=
 [[http://dlang.org/download.html][D Compilers download]]
 Set D_COMPILER one of DMD, LDC or GDC e.g.: SET_D_COMPILER=DMD
 
-***** TODO set compiler
+***** TODO [#A] set compiler
 #+BEGIN_SRC makefile :tangle makefile
 # SET_D_COMPILER=(one of: DMD LDC or GDC):
-SET_D_COMPILER=LDC
+SET_D_COMPILER=DMD
 #+END_SRC
 
 ***** +note+
@@ -78,7 +78,7 @@ Set debug flags using DMD standard flag -debug= e.g.:
   SET_DC_FLAGS_DEBUG_EXTRA=-debug=headings -debug=bookindex
   SET_DC_FLAGS_DEBUG_EXTRA=-debug=headings -debug=footnotes -debug=endnotes
 
-***** TODO set debug flags
+***** TODO [#A] set debug flags
 #+BEGIN_SRC makefile :tangle makefile
 SET_DC_FLAGS_DEBUG_EXTRA=-debug=dumpdoc
 #+END_SRC
diff --git a/org/ao_abstract_doc_source.org b/org/ao_abstract_doc_source.org
index cf0efd2..cc4fd47 100644
--- a/org/ao_abstract_doc_source.org
+++ b/org/ao_abstract_doc_source.org
@@ -49,7 +49,8 @@ mixin InternalMarkup;
 /+ initialize +/
 
 auto rgx = Rgx();
-string[string][] contents_the_objects;
+ObjComposite[] contents_the_objects;
+
 string[string] an_object, processing;
 auto set_abstract_object = ObjectAbstractSet();
 auto set_header = HeaderDocMetadataMakeJson();
@@ -235,7 +236,8 @@ scope(exit) {
 }
 scope(failure) {
   stderr.writefln(
-    "%s:%s failed here:\n  line: %s",
+    "%s\n%s\n%s:%s failed here:\n  line: %s",
+    __MODULE__, __FUNCTION__,
     __FILE__, __LINE__,
     line,
   );
@@ -638,12 +640,11 @@ if ((type["header_make"] == State.on)
   ++heading_pointer;
   contents_the_objects ~=
     set_abstract_object.contents_heading(
-      type["obj_cite_number_status"],
       an_object["substantive"],
       an_object["attrib"],
-      obj_cite_number, an_object["lev"],
-      an_object["lev_markup_number"],
-      an_object["lev_collapsed_number"]
+      obj_cite_number,
+      to!int(an_object["lev_markup_number"]),
+      to!int(an_object["lev_collapsed_number"])
     );
   // track previous heading and make assertions
   debug(objectrelated1) { // check
@@ -732,10 +733,10 @@ if ((type["header_make"] == State.on)
 
 #+name: abs_in_loop_body_01
 #+BEGIN_SRC d
-if (((contents_the_objects[$-1]["is"] == "para")
-|| (contents_the_objects[$-1]["is"] == "heading"))
+if (((contents_the_objects[$-1].is_a == "para")
+|| (contents_the_objects[$-1].is_a == "heading"))
 && (counter-1 > previous_count)) {
-  if (match(contents_the_objects[$-1]["obj"],
+  if (match(contents_the_objects[$-1].object,
   rgx.inline_notes_delimiter_al_regular_number_note)) {
     // endnotes/ footnotes for
     // doc objects other than paragraphs & headings
@@ -1805,7 +1806,7 @@ auto table_block(char[] line, ref string[string] an_object, ref int[string] type
 auto block_flag_line_empty(
   char[] line,
   ref string[string] an_object,
-  ref string[string][] contents_the_objects,
+  ref ObjComposite[] contents_the_objects,
   ref string[][string][string] bookindex_unordered_hashes,
   ref int obj_cite_number,
   ref string node,
@@ -3449,7 +3450,6 @@ struct BookIndexReportIndent {
 #+name: ao_emitters
 #+BEGIN_SRC d
 struct BookIndexReportSection {
-  mixin ObjectSetter;
   int mkn, skn;
   auto rgx = Rgx();
   auto bookindex_write_section(
@@ -3483,7 +3483,6 @@ struct BookIndexReportSection {
     int obj_cite_number
   ) {
     string type;
-    int type_heading;
     string lev, lev_markup_number, lev_collapsed_number;
     string attrib;
     string[string] indent;
@@ -3491,43 +3490,35 @@ struct BookIndexReportSection {
     auto mainkeys =
       bookindex_unordered_hashes.byKey.array.sort().release;
     string bi_tmp;
-    string[string][] bookindex_section;
+    ObjComposite[] bookindex_section;
     // writeln(mainkeys.length);
     // B~ Book Index
-    type_heading=1;
-    bi_tmp = "Book Index";
     attrib="";
     lev="B";
     lev_markup_number="1";
     lev_collapsed_number="1";
     bookindex_section ~=
       set_abstract_object.contents_heading(
-        type_heading,
-        bi_tmp,
+        "Book Index",
         attrib,
         obj_cite_number,
-        lev,
-        lev_markup_number,
-        lev_collapsed_number
+        to!int(lev_markup_number),
+        to!int(lev_collapsed_number)
       );
     ++obj_cite_number;
     ++mkn;
     // 1~ Index
-    type_heading=1;
-    bi_tmp = "Index";
     attrib="";
     lev="1";
     lev_markup_number="4";
     lev_collapsed_number="2";
     bookindex_section ~=
       set_abstract_object.contents_heading(
-        type_heading,
-        bi_tmp,
+        "Index",
         attrib,
         obj_cite_number,
-        lev,
-        lev_markup_number,
-        lev_collapsed_number
+        to!int(lev_markup_number),
+        to!int(lev_collapsed_number)
       );
     ++obj_cite_number;
     ++mkn;
@@ -3622,31 +3613,30 @@ struct BookIndexReportSection {
 #+name: ao_emitters
 #+BEGIN_SRC d
 struct NotesSection {
-  mixin ObjectSetter;
   string object_notes;
   long previous_count;
   int mkn;
   auto rgx = Rgx();
   private auto gather_notes_for_endnote_section(
-    string[string][] contents_am,
-    long counter
+    ObjComposite[] contents_am,
+    ulong counter
   )
   in {
     // endnotes/ footnotes for
     // doc objects other than paragraphs & headings
     // various forms of grouped text
-    assert((contents_am[counter]["is"] == "para")
-    || (contents_am[counter]["is"] == "heading"));
+    assert((contents_am[counter].is_a == "para")
+    || (contents_am[counter].is_a == "heading"));
     assert(counter > previous_count);
     previous_count=counter;
     assert(
-      match(contents_am[counter]["obj"],
+      match(contents_am[counter].object,
       rgx.inline_notes_delimiter_al_regular_number_note)
     );
   }
   body {
     foreach(m;
-    matchAll(contents_am[counter]["obj"],
+    matchAll(contents_am[counter].object,
     rgx.inline_notes_delimiter_al_regular_number_note)) {
       debug(endnotes_build) {
         writeln(
@@ -3675,47 +3665,40 @@ struct NotesSection {
   }
   body {
     auto set_abstract_object = ObjectAbstractSet();
-    string[string][] endnotes_section;
+    ObjComposite[] endnotes_section;
     auto endnotes_ = gathered_notes();
     // auto endnotes_ = (split(object_notes, rgx.break_string))[0..$-1];
     string type;
-    int type_heading;
     string lev, lev_markup_number, lev_collapsed_number;
     string attrib;
     string[string] indent;
     // B~ Endnotes
-    type_heading=1;
     attrib="";
     lev="B";
     lev_markup_number="1";
     lev_collapsed_number="1";
     endnotes_section ~=
       set_abstract_object.contents_heading(
-        type_heading,
         "Endnotes",
         attrib,
         obj_cite_number,
-        lev,
-        lev_markup_number,
-        lev_collapsed_number
+        to!int(lev_markup_number),
+        to!int(lev_collapsed_number)
       );
     ++obj_cite_number;
     ++mkn;
     // 1~ Endnotes
-    type_heading=1;
     attrib="";
     lev="1";
     lev_markup_number="4";
     lev_collapsed_number="2";
     endnotes_section ~=
       set_abstract_object.contents_heading(
-        type_heading,
         "Endnotes",
         attrib,
         obj_cite_number,
-        lev,
-        lev_markup_number,
-        lev_collapsed_number
+        to!int(lev_markup_number),
+        to!int(lev_collapsed_number)
       );
     ++obj_cite_number;
     ++mkn;
@@ -4293,19 +4276,59 @@ auto assertions_flag_types_block_status_none_or_closed(int[string] type) {
 * object setter                                             :abstract:object:
 set abstracted objects for downstream processing
 
+** structs                                                           :struct:
+#+name: ao_structs
+#+BEGIN_SRC d
+struct HeadingAttrib {
+  int lev                   = 9;   // use of enum should make this redundant, remove
+  int lev_markup_number     = 9;
+  int lev_collapsed_number  = 9;
+}
+struct ParaAttrib {
+  int indent_first          = 0;
+  int indent_second         = 0;
+  bool bullet               = false;
+}
+struct BlockAttrib {
+}
+struct Comment {
+  // no .attrib and no .obj_cite_number
+}
+struct Node {
+  int ocn                    = 0;
+  int parent_lev             = 0;
+  int parent_ocn             = 0;
+  string node                = "";
+}
+struct ObjComposite {
+  // size_t id;
+  string use                 = "";
+  string of                  = "";
+  string is_a                = "";
+  string object              = "";
+  string obj_cite_number     = "";  // not used for calculations? output only? else int
+  HeadingAttrib heading_attrib;
+  ParaAttrib para_attrib;
+  BlockAttrib block_attrib;
+  Node node_structure;
+}
+struct ObjCompositeArr {
+  ObjComposite[] oca;
+}
+#+END_SRC
+
 ** object setter                                                        :set:
 
 *** comment                                                         :comment:
 
 #+name: ao_object_setter
 #+BEGIN_SRC d
-string[string] contents_comment(in string object) {
-  string[string] object_set;
-  object_set["use"]           = "comment";
-  object_set["of"]            = "comment";
-  object_set["is"]            = "comment";
-  object_set["obj"]           = object;
-  // object_set["attrib"]     = attrib;
+auto contents_comment(in string object) {
+  ObjComposite object_set;
+  object_set.use                  = "comment";
+  object_set.of                   = "comment";
+  object_set.is_a                 = "comment";
+  object_set.object               = object;
   return object_set;
 }
 #+END_SRC
@@ -4314,28 +4337,22 @@ string[string] contents_comment(in string object) {
 
 #+name: ao_object_setter
 #+BEGIN_SRC d
-string[string] contents_heading(
-  in int type,
+auto contents_heading(
   in string object,
   in string attrib,
   in int obj_cite_number,
-  in string lev,
-  in string lev_markup_number,
-  in string lev_collapsed_number,
+  in int lev_markup_number,
+  in int lev_collapsed_number,
 ) {
-  string[string] object_set;
-  object_set["use"]                  = "content";
-  object_set["of"]                   = "para";
-  object_set["is"]                   = "heading";
-  object_set["type"]                 = to!string(type);
-  // object_set["is"]                = type; // "heading" "heading_dummy"
-  object_set["obj"]                  = object;
-  object_set["obj_cite_number"]      = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
-  object_set["lev"]                  = to!string(lev);
-  object_set["lev_markup_number"]    = to!string(lev_markup_number);
-  object_set["lev_collapsed_number"] = to!string(lev_collapsed_number);
-  object_set["attrib"]               = attrib;
-  // object_set["children"]          = children;
+  ObjComposite object_set;
+  object_set.use                                 = "content";
+  object_set.of                                  = "para";
+  object_set.is_a                                = "heading";
+  object_set.object                              = object;
+  object_set.obj_cite_number                     = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+  object_set.heading_attrib.lev_markup_number    = lev_markup_number;
+  object_set.heading_attrib.lev_collapsed_number = lev_collapsed_number;
+  // object_set.node_structure.node               = node;
   return object_set;
 }
 #+END_SRC
@@ -4344,7 +4361,7 @@ string[string] contents_heading(
 
 #+name: ao_object_setter
 #+BEGIN_SRC d
-string[string] contents_para(
+auto contents_para(
   in string is_a,
   in string object,
   in string attrib,
@@ -4352,17 +4369,16 @@ string[string] contents_para(
   in string[string] indent,
   in bool bullet
 ) {
-  string[string] object_set;
-  object_set["use"]              = "content";
-  object_set["of"]               = "para";
-  object_set["is"]               = is_a;
-  // object_set["status"]        = status;
-  object_set["obj"]              = object;
-  object_set["obj_cite_number"]  = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
-  object_set["indent_first"]     = indent["first"];
-  object_set["indent_second"]    = indent["second"];
-  object_set["bullet"]           = to!string(bullet);
-  object_set["attrib"]           = attrib;
+  ObjComposite object_set;
+  object_set.use                 = "content";
+  object_set.of                  = "para";
+  object_set.is_a                = "para";
+  object_set.object              = object;
+  object_set.obj_cite_number     = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+  object_set.para_attrib.indent_first   = 0; // indent["first"];
+  object_set.para_attrib.indent_second  = 0; // indent["second"];
+  object_set.para_attrib.bullet         = false;
+  // object_set.node_structure.node               = node;
   return object_set;
 }
 #+END_SRC
@@ -4371,19 +4387,19 @@ string[string] contents_para(
 
 #+name: ao_object_setter
 #+BEGIN_SRC d
-string[string] contents_block(
+auto contents_block(
   in string type,
   in string object,
   in string attrib,
   in int obj_cite_number
 ) {
-  string[string] object_set;
-  object_set["use"]             = "content";
-  object_set["of"]              = "block";
-  object_set["is"]              = type;
-  object_set["obj"]             = object;
-  object_set["obj_cite_number"] = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
-  object_set["attrib"]          = attrib;
+  ObjComposite object_set;
+  object_set.use                 = "content";
+  object_set.of                  = "block";
+  object_set.is_a                = type;
+  object_set.object              = object;
+  object_set.obj_cite_number     = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+  // object_set.node_structure.node               = node;
   return object_set;
 }
 #+END_SRC
@@ -4392,20 +4408,19 @@ string[string] contents_block(
 
 #+name: ao_object_setter
 #+BEGIN_SRC d
-string[string] contents_block_obj_cite_number_string(
+auto contents_block_obj_cite_number_string(
   in string type,
   in string object,
   in string obj_cite_number,
   in string node
 ) {
-  string[string] object_set;
-  object_set["use"]             = "content";
-  object_set["of"]              = "block";
-  object_set["is"]              = type;
-  object_set["obj"]             = object;
-  object_set["obj_cite_number"] = obj_cite_number;
-  object_set["node"]            = node;
-  // object_set["attrib"]       = "";
+  ObjComposite object_set;
+  object_set.use                               = "content";
+  object_set.of                                = "block";
+  object_set.is_a                              = type;
+  object_set.object                            = object;
+  object_set.obj_cite_number                   = obj_cite_number;
+  object_set.node_structure.node               = node;
   return object_set;
 }
 #+END_SRC
@@ -4482,6 +4497,10 @@ template SiSUdocAbstraction() {
   ao_object_setter.d
 +/
 template ObjectSetter() {
+  /+ structs +/
+  <<ao_structs>>
+
+  /+ structs setter +/
   struct ObjectAbstractSet {
     import std.conv : to;
     <<ao_object_setter>>
diff --git a/org/ao_output_debugs.org b/org/ao_output_debugs.org
index c5f4482..72ca80e 100644
--- a/org/ao_output_debugs.org
+++ b/org/ao_output_debugs.org
@@ -24,15 +24,15 @@ debug(parent) {
     __LINE__,
   );
   foreach (obj; contents) {
-    if (obj["use"] == "content") {
-      if (obj["is"] == "heading") {
+    if (obj.use == "content") {
+      if (obj.is_a == "heading") {
         writefln(
           "%s%s node: %s heading: %s %s",
           scr_txt_marker["cyan"],
-          obj["obj_cite_number"],
-          obj["node"],
-          obj["lev_markup_number"],
-          obj["obj"],
+          obj.obj_cite_number,
+          obj.node,
+          obj.lev_markup_number,
+          obj.object,
         );
       } else {
       }
@@ -51,12 +51,12 @@ debug(dumpdoc) {
     __LINE__,
   );
   foreach (obj; contents) {
-    if (obj["use"] == "content") {
+    if (obj.use == "content") {
       writefln(
         "[%s][%s]\n%s",
-        obj["obj_cite_number"],
-        obj["is"],
-        obj["obj"]
+        obj.obj_cite_number,
+        obj.is_a,
+        obj.object
       );
     }
   }
@@ -73,14 +73,14 @@ debug(objects) {
     __LINE__,
   );
   foreach (obj; contents) {
-    if (obj["use"] == "content") {
+    if (obj.use == "content") {
       writefln(
         "%s* [%s][%s] %s%s",
         scr_txt_color["green"],
-        obj["obj_cite_number"],
-        obj["is"],
+        obj.obj_cite_number,
+        obj.is_a,
         scr_txt_color["off"],
-        obj["obj"]
+        obj.object
       );
     }
   }
@@ -269,9 +269,9 @@ debug(summary) {
 #+BEGIN_SRC d
 debug(checkdoc) {
   foreach (obj; contents) {
-    if (obj["use"] == "content") {
-      if (!empty(obj["obj_cite_number"])) {
-        check["last_obj_cite_number"] = obj["obj_cite_number"];
+    if (obj.use == "content") {
+      if (!empty(obj.obj_cite_number)) {
+        check["last_obj_cite_number"] = obj.obj_cite_number;
       }
     }
   }
@@ -288,14 +288,14 @@ debug(headings) {
     __LINE__,
   );
   foreach (obj; contents) {
-    if (obj["is"] == "heading") {
+    if (obj.is_a == "heading") {
       writefln(
         "%s%s~ [%s] %s",
         scr_txt_marker["yellow"],
-        obj["lev"],
-        obj["obj_cite_number"],
+        obj.heading_attrib.lev,
+        obj.obj_cite_number,
         // "[", obj["is"], "] ",
-        obj["obj"]
+        obj.object
       );
     }
   }
@@ -456,14 +456,18 @@ debug(checkdoc) {
 +/
 template SiSUoutputDebugs() {
   struct SDPoutputDebugs {
-    auto abstract_doc_source_debugs(
-      string[string][] contents,
-      JSONValue[string] docmake,
-      JSONValue[string] dochead,
+    auto tst_debugs(S)(auto ref const S s) {
+      mixin RgxInit;
+      mixin ScreenTxtColors;
+      auto rgx = Rgx();
+    }
+    auto abstract_doc_source_debugs(S)(auto ref const S contents,
+      JSONValue[string]        docmake,
+      JSONValue[string]        dochead,
       string[][string][string] bookindex_unordered_hashes,
-      JSONValue[] biblio,
-      string fn_src,
-      bool[string] opt_action_bool
+      JSONValue[]              biblio,
+      string                   fn_src,
+      bool[string]             opt_action_bool
     ) {
       mixin RgxInit;
       mixin ScreenTxtColors;
diff --git a/org/sdp.org b/org/sdp.org
index e218b5c..a48fbfa 100644
--- a/org/sdp.org
+++ b/org/sdp.org
@@ -39,7 +39,7 @@ enum ver = Version(1, 0, 0);
 [[./ao_output_debugs.org][ao_output_debugs]]
 [[./ao_read_source_files.org][ao_read_source_files]]
 
-**** std                                                      :import:std:
+**** std                                                         :import:std:
 #+NAME: sdp_imports
 #+BEGIN_SRC d
 /+ sdp  sisu document parser +/
@@ -274,7 +274,8 @@ auto doc_ao_biblio = t[4];
 // destroy(t);
 #+END_SRC
 
-**** debug document parts (checkdoc)                                  :debug:
+**** TODO debug                                                       :debug:
+***** [#A] debug document parts (checkdoc)                         :checkdoc:
 #+NAME: sdp_each_file_do
 #+BEGIN_SRC d
 /+ ↓ document parts +/
@@ -424,7 +425,7 @@ void main(string[] args) {
 | - metadata          |                                          |                        |        |
 | - make instructions |                                          |                        |        |
 |---------------------+------------------------------------------+------------------------+--------|
-| table of contents   | markup of headings                       |                        | output |
+| table of contents   | markup of headings                       | (regular content)      | output |
 |---------------------+------------------------------------------+------------------------+--------|
 | substantive content | sisu /content markup/                      | markup                 | output |
 |                     | headings (providing document structure), | (regular content)      |        |