0.13.6 dlang function calls, syntax (ufcs related), logic should be retained

1 files changed, 284 insertions, 292 deletions

diff --git a/org/ao_doc_abstraction.org b/org/ao_doc_abstraction.org
index 2188e94..aac99f7 100644
--- a/org/ao_doc_abstraction.org
+++ b/org/ao_doc_abstraction.org
@@ -136,7 +136,7 @@ template SiSUdocAbstraction() {
         } else {
           /+ not within a block group +/
           <<abs_in_loop_body_open_block_obj_assert>>
-          if (matchFirst(line, rgx.block_open)) {
+          if (line.matchFirst(rgx.block_open)) {
             <<abs_in_loop_body_open_block_obj>>
           } else if (!line.empty) {
             /+ line not empty +/
@@ -319,47 +319,47 @@ void heading_ancestors(O)(
 ) {
   switch (obj.heading_lev_markup) {
   case 0:
-    lv_ancestors[0] = to!string(obj.text);
+    lv_ancestors[0] = obj.text.to!string;
     foreach(k; 1..8) {
       lv_ancestors[k] = "";
     }
     goto default;
   case 1:
-    lv_ancestors[1] = to!string(obj.text);
+    lv_ancestors[1] = obj.text.to!string;
     foreach(k; 2..8) {
       lv_ancestors[k] = "";
     }
     goto default;
   case 2:
-    lv_ancestors[2] = to!string(obj.text);
+    lv_ancestors[2] = obj.text.to!string;
     foreach(k; 3..8) {
       lv_ancestors[k] = "";
     }
     goto default;
   case 3:
-    lv_ancestors[3] = to!string(obj.text);
+    lv_ancestors[3] = obj.text.to!string;
     foreach(k; 4..8) {
       lv_ancestors[k] = "";
     }
     goto default;
   case 4:
-    lv_ancestors[4] = to!string(obj.text);
+    lv_ancestors[4] = obj.text.to!string;
     foreach(k; 5..8) {
       lv_ancestors[k] = "";
     }
     goto default;
   case 5:
-    lv_ancestors[5] = to!string(obj.text);
+    lv_ancestors[5] = obj.text.to!string;
     foreach(k; 6..8) {
       lv_ancestors[k] = "";
     }
     goto default;
   case 6:
-    lv_ancestors[6] = to!string(obj.text);
+    lv_ancestors[6] = obj.text.to!string;
     lv_ancestors[7] = "";
     goto default;
   case 7:
-    lv_ancestors[7] = to!string(obj.text);
+    lv_ancestors[7] = obj.text.to!string;
     goto default;
   default:
     obj.heading_ancestors_text = lv_ancestors.dup;
@@ -647,11 +647,11 @@ continue;
 
 #+name: abs_in_loop_body_non_code_obj
 #+BEGIN_SRC d
-if ((matchFirst(line, rgx.heading_biblio)
+if (line.matchFirst(rgx.heading_biblio)
 || (type["biblio_section"] == State.on
-&& (!matchFirst(line, rgx.heading_blurb_glossary))))
-&& (!matchFirst(line, rgx.heading))
-&& (!matchFirst(line, rgx.comment))) {
+&& (!(line.matchFirst(rgx.heading_blurb_glossary)))
+&& (!(line.matchFirst(rgx.heading)))
+&& (!(line.matchFirst(rgx.comment))))) {
   /+ within section (block object): biblio +/
   type["glossary_section"] = State.off;
   type["biblio_section"] = State.on;
@@ -677,11 +677,11 @@ if there is a glossary section you need to:
 
 #+name: abs_in_loop_body_non_code_obj
 #+BEGIN_SRC d
-} else if ((matchFirst(line, rgx.heading_glossary)
+} else if (line.matchFirst(rgx.heading_glossary)
 || (type["glossary_section"] == State.on
-&& (!matchFirst(line, rgx.heading_biblio_blurb))))
-&& (!matchFirst(line, rgx.heading))
-&& (!matchFirst(line, rgx.comment))) {
+&& (!(line.matchFirst(rgx.heading_biblio_blurb)))
+&& (!(line.matchFirst(rgx.heading)))
+&& (!(line.matchFirst(rgx.comment))))) {
   /+ within section (block object): glossary +/
   debug(glossary) {
     writeln(__LINE__);
@@ -700,7 +700,7 @@ if there is a glossary section you need to:
     type["para"] = State.on;
     line_occur["para"] = State.off;
     an_object_key="glossary_nugget"; //
-    if (matchFirst(line, rgx.heading_glossary)) {
+    if (line.matchFirst(rgx.heading_glossary)) {
       comp_obj_heading_                       = comp_obj_heading_.init;
       comp_obj_heading_.use                   = "backmatter";
       comp_obj_heading_.is_of                 = "para";
@@ -735,7 +735,7 @@ if there is a glossary section you need to:
       comp_obj_para.use                   = "backmatter";
       comp_obj_para.is_of                 = "para";
       comp_obj_para.is_a                  = "glossary";
-      comp_obj_para.text                  = to!string(line).strip;
+      comp_obj_para.text                  = line.to!string.strip;
       comp_obj_para.ocn                   = 0;
       comp_obj_para.obj_cite_number       = "";
       comp_obj_para.indent_hang           = indent["hang_position"];
@@ -759,11 +759,11 @@ if there is a blurb section you need to:
 
 #+name: abs_in_loop_body_non_code_obj
 #+BEGIN_SRC d
-} else if ((matchFirst(line, rgx.heading_blurb)
+} else if (line.matchFirst(rgx.heading_blurb)
 || (type["blurb_section"] == State.on
-&& (!matchFirst(line, rgx.heading_biblio_glossary))))
-&& (!matchFirst(line, rgx.heading))
-&& (!matchFirst(line, rgx.comment))) {
+&& (!(line.matchFirst(rgx.heading_biblio_glossary)))
+&& (!(line.matchFirst(rgx.heading)))
+&& (!(line.matchFirst(rgx.comment))))) {
   /+ within section (block object): blurb +/
   debug(blurb) {
     writeln(__LINE__);
@@ -781,7 +781,7 @@ if there is a blurb section you need to:
     type["para"] = State.on;
     line_occur["para"] = State.off;
     an_object_key="blurb_nugget";
-    if (matchFirst(line, rgx.heading_blurb)) {
+    if (line.matchFirst(rgx.heading_blurb)) {
       comp_obj_heading_                       = comp_obj_heading_.init;
       comp_obj_heading_.use                   = "backmatter";
       comp_obj_heading_.is_of                 = "para";
@@ -810,19 +810,19 @@ if there is a blurb section you need to:
       comp_obj_heading_.parent_lev_markup     = 0;
       comp_obj_heading_.anchor_tags           = ["blurb"];
       the_blurb_section                       ~= comp_obj_heading_;
-    } else if ((matchFirst(line, rgx.heading))
+    } else if (line.matchFirst(rgx.heading)
     && (opt_action_bool["backmatter"] && opt_action_bool["section_blurb"])) {
       comp_obj_heading_                       = comp_obj_heading_.init;
       comp_obj_heading_.use                   = "backmatter";
       comp_obj_heading_.is_of                 = "para";
       comp_obj_heading_.is_a                  = "heading";
-      comp_obj_heading_.text                  = to!string(line);
+      comp_obj_heading_.text                  = line.to!string;
       comp_obj_heading_.ocn                   = 0;
       comp_obj_heading_.obj_cite_number       = "";
       comp_obj_heading_.segment_anchor_tag    = "blurb";
-      comp_obj_heading_.marked_up_level       = to!string(an_object["lev"]);
-      comp_obj_heading_.heading_lev_markup    = to!int(an_object["lev_markup_number"]);    // make int, remove need to conv
-      comp_obj_heading_.heading_lev_collapsed = to!int(an_object["lev_collapsed_number"]); // make int, remove need to conv
+      comp_obj_heading_.marked_up_level       = an_object["lev"].to!string;
+      comp_obj_heading_.heading_lev_markup    = an_object["lev_markup_number"].to!int;    // make int, remove need to conv
+      comp_obj_heading_.heading_lev_collapsed = an_object["lev_collapsed_number"].to!int; // make int, remove need to conv
       comp_obj_heading_.parent_ocn            = 1;
       comp_obj_heading_.parent_lev_markup     = 0;
       the_blurb_section                   ~= comp_obj_heading_;
@@ -832,7 +832,7 @@ if there is a blurb section you need to:
       comp_obj_para.use                   = "backmatter";
       comp_obj_para.is_of                 = "para";
       comp_obj_para.is_a                  = "blurb";
-      comp_obj_para.text                  = to!string(line).strip;
+      comp_obj_para.text                  = line.to!string.strip;
       comp_obj_para.ocn                   = 0;
       comp_obj_para.obj_cite_number       = "";
       comp_obj_para.indent_hang           = indent["hang_position"];
@@ -914,11 +914,11 @@ assertions_flag_types_block_status_none_or_closed(type);
 
 #+name: abs_in_loop_body_open_block_obj
 #+BEGIN_SRC d
-if (matchFirst(line, (rgx.block_poem_open))) {
+if (line.matchFirst(rgx.block_poem_open)) {
   /+ poem to verse exceptions! +/
   object_reset(an_object);
   processing.remove("verse");
-  obj_cite_number_poem["start"] = to!string(obj_cite_number);
+  obj_cite_number_poem["start"] = obj_cite_number.to!string;
 }
 _start_block_(line, type, obj_cite_number_poem);
 continue;
@@ -945,8 +945,8 @@ if (type["blocks"] == TriState.closing) {
     writeln(line);
   }
   assert(
-    matchFirst(line, rgx.book_index)
-    || matchFirst(line, rgx.book_index_open)
+    line.matchFirst(rgx.book_index)
+    || line.matchFirst(rgx.book_index_open)
     || type["book_index"] == State.on
   );
 }
@@ -956,9 +956,9 @@ if (type["blocks"] == TriState.closing) {
 
 #+name: abs_in_loop_body_not_block_obj
 #+BEGIN_SRC d
-if ((matchFirst(line, rgx.book_index))
-|| (matchFirst(line, rgx.book_index_open))
-|| (type["book_index"] == State.on ))  {
+if (line.matchFirst(rgx.book_index)
+|| line.matchFirst(rgx.book_index_open)
+|| type["book_index"] == State.on )  {
   /+ book_index +/
   _book_index_(line, book_idx_tmp, an_object, type, opt_action_bool);
 #+END_SRC
@@ -1022,7 +1022,7 @@ if ((matchFirst(line, rgx.book_index))
        - should happen before endnote links set (they need to be moved down?)
       // node_construct.node_emitter_heading segment anchor tag
     +/
-    if (matchFirst(line, rgx.heading)) {
+    if (line.matchFirst(rgx.heading)) {
       /+ heading match +/
       _heading_matched_(line, line_occur, an_object, an_object_key, lv, collapsed_lev, type, dochead_meta_aa);
     } else if (line_occur["para"] == State.off) {
@@ -1101,7 +1101,7 @@ assert(
 if ((type["heading"] == State.on)
 && (line_occur["heading"] > State.off)) {
   /+ heading object (current line empty) +/
-  obj_cite_number = (to!int(an_object["lev_markup_number"]) == 0)
+  obj_cite_number = (an_object["lev_markup_number"].to!int == 0)
   ? (ocn_emit(3))
   : (obj_cite_number = ocn_emit(type["ocn_status"]));
   an_object["is"] = "heading";
@@ -1110,14 +1110,14 @@ if ((type["heading"] == State.on)
     obj_im.obj_inline_markup_and_anchor_tags_and_misc(an_object, an_object_key, dochead_make_aa);
   an_object["substantive"] = substantive_object_and_anchor_tags_tuple[sObj.content];
   anchor_tags = substantive_object_and_anchor_tags_tuple[sObj.anchor_tags];
-  if (to!int(an_object["lev_markup_number"]) == 4) {
+  if (an_object["lev_markup_number"].to!int == 4) {
     segment_anchor_tag_that_object_belongs_to = anchor_tags[0];
     segment_anchor_tag_that_object_belongs_to_uri = anchor_tags[0] ~ ".fnSuffix";
     anchor_tag_ = anchor_tags[0];
-  } else if (to!int(an_object["lev_markup_number"]) > 4) {
+  } else if (an_object["lev_markup_number"].to!int > 4) {
     segment_anchor_tag_that_object_belongs_to = anchor_tag_;
-    segment_anchor_tag_that_object_belongs_to_uri = anchor_tag_ ~ ".fnSuffix#" ~ to!string(obj_cite_number);
-  } else if (to!int(an_object["lev_markup_number"]) < 4) {
+    segment_anchor_tag_that_object_belongs_to_uri = anchor_tag_ ~ ".fnSuffix#" ~ obj_cite_number.to!string;
+  } else if (an_object["lev_markup_number"].to!int < 4) {
     segment_anchor_tag_that_object_belongs_to = "";
     segment_anchor_tag_that_object_belongs_to_uri = "";
   }
@@ -1204,9 +1204,9 @@ if ((type["heading"] == State.on)
   comp_obj_para.use                   = "body";
   comp_obj_para.is_of                 = "para";
   comp_obj_para.is_a                  = "para";
-  comp_obj_para.text                  = to!string(an_object["substantive"]).strip;
+  comp_obj_para.text                  = an_object["substantive"].to!string.strip;
   comp_obj_para.ocn                   = obj_cite_number;
-  comp_obj_para.obj_cite_number       = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+  comp_obj_para.obj_cite_number       = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
   comp_obj_para.indent_hang           = indent["hang_position"];
   comp_obj_para.indent_base           = indent["base_position"];
   comp_obj_para.bullet                = bullet;
@@ -1248,12 +1248,11 @@ if (the_document_body_section.length > 0) {
       type["glossary_section"] = State.off;
       type["blurb_section"] = State.off;
     }
-    previous_length = to!int(the_document_body_section.length);
-    if (match(
-      the_document_body_section[$-1].text,
+    previous_length = the_document_body_section.length.to!int;
+    if ((the_document_body_section[$-1].text).match(
       rgx.inline_notes_delimiter_al_regular_number_note
     )) {
-      previous_count=to!int(the_document_body_section.length -1);
+      previous_count=(the_document_body_section.length -1).to!int;
       note_section.gather_notes_for_endnote_section(
         the_document_body_section,
         segment_anchor_tag_that_object_belongs_to,
@@ -1409,7 +1408,7 @@ foreach (entry; biblio_ordered) {
   comp_obj_para.use                   = "backmatter";
   comp_obj_para.is_of                 = "para";
   comp_obj_para.is_a                  = "bibliography";
-  comp_obj_para.text                  = to!string(out_).strip;
+  comp_obj_para.text                  = out_.to!string.strip;
   comp_obj_para.ocn                   = 0;
   comp_obj_para.obj_cite_number       = "";
   comp_obj_para.indent_hang           = 0;
@@ -1536,7 +1535,7 @@ if (the_endnotes_section.length > 1) {
     ".fnSuffix",
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["seg"]    ~= comp_obj_toc;
 }
@@ -1549,7 +1548,7 @@ if (the_glossary_section.length > 1) {
     ".fnSuffix",
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["seg"]    ~= comp_obj_toc;
   toc_txt_ = format(
@@ -1558,7 +1557,7 @@ if (the_glossary_section.length > 1) {
     "glossary",               // _anchor_tag
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["scroll"] ~= comp_obj_toc;
 }
@@ -1571,7 +1570,7 @@ if (the_bibliography_section.length > 1){
     ".fnSuffix",
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["seg"]    ~= comp_obj_toc;
 
@@ -1581,7 +1580,7 @@ if (the_bibliography_section.length > 1){
     "bibliography",           // _anchor_tag
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["scroll"] ~= comp_obj_toc;
 }
@@ -1594,7 +1593,7 @@ if (the_bookindex_section["seg"].length > 1) {
     ".fnSuffix",
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["seg"]    ~= comp_obj_toc;
 }
@@ -1605,7 +1604,7 @@ if (the_bookindex_section["scroll"].length > 1) {
     "bookindex",              // _anchor_tag
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["scroll"] ~= comp_obj_toc;
 }
@@ -1618,7 +1617,7 @@ if (the_blurb_section.length > 1) {
     ".fnSuffix",
   );
   toc_txt_= munge.url_links(toc_txt_);
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   comp_obj_toc.inline_links               = true;
   the_table_of_contents_section["seg"]    ~= comp_obj_toc;
   toc_txt_ = format(
@@ -1628,7 +1627,7 @@ if (the_blurb_section.length > 1) {
   );
   toc_txt_= munge.url_links(toc_txt_);
   comp_obj_toc.inline_links               = true;
-  comp_obj_toc.text                       = to!string(toc_txt_).strip;
+  comp_obj_toc.text                       = toc_txt_.to!string.strip;
   the_table_of_contents_section["scroll"] ~= comp_obj_toc;
 }
 debug(toc) {
@@ -1763,7 +1762,7 @@ next are not yet known for backmatter during the second pass
 string[] _images;
 auto extract_images(S)(S content_block) {
   string[] images_;
-  if (auto m = matchAll(content_block, rgx.image)) {
+  if (auto m = content_block.matchAll(rgx.image)) {
     images_ ~= m.captures[1];
   }
   return images_;
@@ -2221,15 +2220,15 @@ void _check_ocn_status_(L,T)(
   auto rgx = Rgx();
   if ((!line.empty) && (type["ocn_status_multi_obj"] == TriState.off)) {
     /+ not multi-line object, check whether obj_cite_number is on or turned off +/
-    if (matchFirst(line, rgx.obj_cite_number_block_marks)) {
+    if (line.matchFirst(rgx.obj_cite_number_block_marks)) {
       /+ switch off obj_cite_number +/
-      if (matchFirst(line, rgx.obj_cite_number_off_block)) {
+      if (line.matchFirst(rgx.obj_cite_number_off_block)) {
         type["ocn_status_multi_obj"] = TriState.on;
         debug(ocnoff) {
           writeln(line);
         }
       }
-      if (matchFirst(line, rgx.obj_cite_number_off_block_dh)) {
+      if (line.matchFirst(rgx.obj_cite_number_off_block_dh)) {
         type["ocn_status_multi_obj"] = TriState.closing;
         debug(ocnoff) {
           writeln(line);
@@ -2237,9 +2236,9 @@ void _check_ocn_status_(L,T)(
       }
     } else {
       if (type["ocn_status_multi_obj"] == TriState.off) {
-        if (matchFirst(line, rgx.obj_cite_number_off)) {
+        if (line.matchFirst(rgx.obj_cite_number_off)) {
           type["ocn_status"] = TriState.on;
-        } else if (matchFirst(line, rgx.obj_cite_number_off_dh)) {
+        } else if (line.matchFirst(rgx.obj_cite_number_off_dh)) {
           type["ocn_status"] = TriState.closing;
         } else {
           type["ocn_status"] = TriState.off;
@@ -2250,7 +2249,7 @@ void _check_ocn_status_(L,T)(
       }
     }
   } else if ((!line.empty) && (type["ocn_status_multi_obj"] > TriState.off)) {
-    if (matchFirst(line, rgx.obj_cite_number_off_block_close)) {
+    if (line.matchFirst(rgx.obj_cite_number_off_block_close)) {
       type["ocn_status_multi_obj"] = TriState.off;
       type["ocn_status"] = TriState.off;
       debug(ocnoff) {
@@ -2284,7 +2283,7 @@ void _start_block_(L,T,N)(
 #+name: abs_functions_block
 #+BEGIN_SRC d
   auto rgx = Rgx();
-  if (matchFirst(line, rgx.block_curly_code_open)) {
+  if (line.matchFirst(rgx.block_curly_code_open)) {
     /+ curly code open +/
     debug(code) {                              // code (curly) open
       writefln(
@@ -2295,7 +2294,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["code"] = TriState.on;
     type["curly_code"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_curly_poem_open)) {
+  } else if (line.matchFirst(rgx.block_curly_poem_open)) {
     /+ curly poem open +/
     debug(poem) {                              // poem (curly) open
       writefln(
@@ -2304,12 +2303,12 @@ void _start_block_(L,T,N)(
       );
     }
     obj_cite_number_poem["start"] =
-      to!string(obj_cite_number);
+      obj_cite_number.to!string;
     type["blocks"] = TriState.on;
     type["verse_new"] = State.on;
     type["poem"] = TriState.on;
     type["curly_poem"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_curly_group_open)) {
+  } else if (line.matchFirst(rgx.block_curly_group_open)) {
     /+ curly group open +/
     debug(group) {                             // group (curly) open
       writefln(
@@ -2320,7 +2319,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["group"] = TriState.on;
     type["curly_group"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_curly_block_open)) {
+  } else if (line.matchFirst(rgx.block_curly_block_open)) {
     /+ curly block open +/
     debug(block) {                             // block (curly) open
       writefln(
@@ -2331,7 +2330,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["block"] = TriState.on;
     type["curly_block"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_curly_quote_open)) {
+  } else if (line.matchFirst(rgx.block_curly_quote_open)) {
     /+ curly quote open +/
     debug(quote) {                             // quote (curly) open
       writefln(
@@ -2342,7 +2341,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["quote"] = TriState.on;
     type["curly_quote"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_curly_table_open)) {
+  } else if (line.matchFirst(rgx.block_curly_table_open)) {
     /+ curly table open +/
     debug(table) {                             // table (curly) open
       writefln(
@@ -2359,7 +2358,7 @@ void _start_block_(L,T,N)(
 
 #+name: abs_functions_block
 #+BEGIN_SRC d
-  } else if (matchFirst(line, rgx.block_tic_code_open)) {
+  } else if (line.matchFirst(rgx.block_tic_code_open)) {
     /+ tic code open +/
     debug(code) {                              // code (tic) open
       writefln(
@@ -2370,7 +2369,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["code"] = TriState.on;
     type["tic_code"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_tic_poem_open)) {
+  } else if (line.matchFirst(rgx.block_tic_poem_open)) {
     /+ tic poem open +/
     debug(poem) {                              // poem (tic) open
       writefln(
@@ -2378,12 +2377,12 @@ void _start_block_(L,T,N)(
         line
       );
     }
-    obj_cite_number_poem["start"] = to!string(obj_cite_number);
+    obj_cite_number_poem["start"] = obj_cite_number.to!string;
     type["blocks"] = TriState.on;
     type["verse_new"] = State.on;
     type["poem"] = TriState.on;
     type["tic_poem"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_tic_group_open)) {
+  } else if (line.matchFirst(rgx.block_tic_group_open)) {
     /+ tic group open +/
     debug(group) {                             // group (tic) open
       writefln(
@@ -2394,7 +2393,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["group"] = TriState.on;
     type["tic_group"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_tic_block_open)) {
+  } else if (line.matchFirst(rgx.block_tic_block_open)) {
     /+ tic block open +/
     debug(block) {                             // block (tic) open
       writefln(
@@ -2405,7 +2404,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["block"] = TriState.on;
     type["tic_block"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_tic_quote_open)) {
+  } else if (line.matchFirst(rgx.block_tic_quote_open)) {
     /+ tic quote open +/
     debug(quote) {                             // quote (tic) open
       writefln(
@@ -2416,7 +2415,7 @@ void _start_block_(L,T,N)(
     type["blocks"] = TriState.on;
     type["quote"] = TriState.on;
     type["tic_quote"] = TriState.on;
-  } else if (matchFirst(line, rgx.block_tic_table_open)) {
+  } else if (line.matchFirst(rgx.block_tic_table_open)) {
     /+ tic table open +/
     debug(table) {                             // table (tic) open
       writefln(
@@ -2454,7 +2453,7 @@ void _code_block_(L,O,T)(
   }
   auto rgx = Rgx();
   if (type["curly_code"] == TriState.on) {
-    if (matchFirst(line, rgx.block_curly_code_close)) {
+    if (line.matchFirst(rgx.block_curly_code_close)) {
       debug(code) {                                    // code (curly) close
         writeln(line);
       }
@@ -2468,7 +2467,7 @@ void _code_block_(L,O,T)(
       an_object[an_object_key] ~= line ~= "\n";        // code (curly) line
     }
   } else if (type["tic_code"] == TriState.on) {
-    if (matchFirst(line, rgx.block_tic_close)) {
+    if (line.matchFirst(rgx.block_tic_close)) {
       debug(code) {                                    // code (tic) close
         writeln(line);
       }
@@ -2588,7 +2587,7 @@ void _biblio_block_(
   mixin SiSUbiblio;
   auto jsn = BibJsnStr();
   auto rgx = Rgx();
-  if (matchFirst(line, rgx.heading_biblio)) {
+  if (line.matchFirst(rgx.heading_biblio)) {
     type["biblio_section"] = TriState.on;
     type["blurb_section"] = State.off;
     type["glossary_section"] = State.off;
@@ -2623,16 +2622,16 @@ void _biblio_block_(
       writeln("?? 2. ERROR ", biblio_entry_str_json, "??");
       biblio_entry_str_json = "";
     }
-  } else if (matchFirst(line, rgx.biblio_tags)) {
+  } else if (line.matchFirst(rgx.biblio_tags)) {
     debug(biblioblock) {
       writeln(line);
     }
-    auto bt = match(line, rgx.biblio_tags);
+    auto bt = line.match(rgx.biblio_tags);
     bib_entry = State.off;
-    st=to!string(bt.captures[1]);
-    auto header_tag_value=to!string(bt.captures[2]);
+    st = bt.captures[1].to!string;
+    auto header_tag_value=(bt.captures[2]).to!string;
     JSONValue j = parseJSON(biblio_entry_str_json);
-    biblio_tag_name = (match(st, rgx.biblio_abbreviations))
+    biblio_tag_name = (st.match(rgx.biblio_abbreviations))
       ? (biblio_tag_map(st))
       : st;
     j.object[biblio_tag_name] = header_tag_value;
@@ -2643,11 +2642,11 @@ void _biblio_block_(
     switch (biblio_tag_name) {
     case "author_raw": // author_arr author (fn sn)
       j["author_arr"] =
-        split(header_tag_value, rgx.arr_delimiter);
+       header_tag_value.split(rgx.arr_delimiter);
       string tmp;
       biblioAuthorLoop:
       foreach (au; j["author_arr"].array) {
-        if (auto x = match(au.str, rgx.name_delimiter)) {
+        if (auto x = au.str.match(rgx.name_delimiter)) {
           tmp ~= x.captures[2] ~ " " ~ x.captures[1] ~ ", ";
         } else {
           tmp ~= au.str;
@@ -2658,11 +2657,11 @@ void _biblio_block_(
       goto default;
     case "editor_raw": // editor_arr editor (fn sn)
       j["editor_arr"] =
-        split(header_tag_value, rgx.arr_delimiter);
+        header_tag_value.split(rgx.arr_delimiter);
       string tmp;
       biblioEditorLoop:
       foreach (ed; j["editor_arr"].array) {
-        if (auto x = match(ed.str, rgx.name_delimiter)) {
+        if (auto x = ed.str.match(rgx.name_delimiter)) {
           tmp ~= x.captures[2] ~ " " ~ x.captures[1] ~ ", ";
         } else {
           tmp ~= ed.str;
@@ -2685,7 +2684,7 @@ void _biblio_block_(
         j[biblio_tag_name]
       );
     }
-    if ((match(line, rgx.comment))) {
+    if (line.match(rgx.comment)) {
       writeln("ERROR", line, "COMMENT");
       writeln("ERROR", s, "%%");
     }
@@ -2718,7 +2717,7 @@ void _group_block_(L,O,T)(
   }
   auto rgx = Rgx();
   if (type["curly_group"] == State.on) {
-    if (matchFirst(line, rgx.block_curly_group_close)) {
+    if (line.matchFirst(rgx.block_curly_group_close)) {
       debug(group) {
         writeln(line);
       }
@@ -2732,7 +2731,7 @@ void _group_block_(L,O,T)(
       an_object[an_object_key] ~= line ~= "\n";   // build group array (or string)
     }
   } else if (type["tic_group"] == TriState.on) {
-    if (matchFirst(line, rgx.block_tic_close)) {
+    if (line.matchFirst(rgx.block_tic_close)) {
       debug(group) {
         writeln(line);
       }
@@ -2765,7 +2764,7 @@ void _block_block_(L,O,T)(
   }
   auto rgx = Rgx();
   if (type["curly_block"] == TriState.on) {
-    if (matchFirst(line, rgx.block_curly_block_close)) {
+    if (line.matchFirst(rgx.block_curly_block_close)) {
       debug(block) {                             // block (curly) close
         writeln(line);
       }
@@ -2779,7 +2778,7 @@ void _block_block_(L,O,T)(
       an_object[an_object_key] ~= line ~= "\n";   // build block array (or string)
     }
   } else if (type["tic_block"] == TriState.on) {
-    if (matchFirst(line, rgx.block_tic_close)) {
+    if (line.matchFirst(rgx.block_tic_close)) {
       debug(block) {
         writeln(line);
       }
@@ -2820,7 +2819,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
   }
   auto rgx = Rgx();
   if (type["curly_poem"] == TriState.on) {
-    if (matchFirst(line, rgx.block_curly_poem_close)) {
+    if (line.matchFirst(rgx.block_curly_poem_close)) {
       an_object[an_object_key]="verse";
       debug(poem) {                               // poem (curly) close
         writefln(
@@ -2856,7 +2855,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
         comp_obj_block.is_of                      = "block";
         comp_obj_block.is_a                       = "verse";
         comp_obj_block.ocn                        = obj_cite_number;
-        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
         comp_obj_block.text                       = an_object["substantive"];
         comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
         comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
@@ -2867,7 +2866,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
         ++cntr;
       }
       obj_cite_number_poem["end"] =
-        to!string(obj_cite_number);
+        obj_cite_number.to!string;
       type["blocks"] = TriState.closing;
       type["poem"] = TriState.closing;
       type["curly_poem"] = TriState.off;
@@ -2877,7 +2876,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
         obj_cite_number =
           ocn_emit(type["ocn_status"]);
         type["verse_new"] = State.off;
-      } else if (matchFirst(line, rgx.newline_eol_delimiter_only)) {
+      } else if (line.matchFirst(rgx.newline_eol_delimiter_only)) {
         verse_line = TriState.off;
         type["verse_new"] = State.on;
       }
@@ -2910,7 +2909,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
         comp_obj_block.is_of                      = "block";
         comp_obj_block.is_a                       = "verse";
         comp_obj_block.ocn                        = obj_cite_number;
-        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
         comp_obj_block.text                       = an_object["substantive"];
         comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
         comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
@@ -2922,7 +2921,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
       }
     }
   } else if (type["tic_poem"] == TriState.on) {
-    if (auto m = matchFirst(line, rgx.block_tic_close)) { // tic_poem_close
+    if (auto m = line.matchFirst(rgx.block_tic_close)) { // tic_poem_close
       an_object[an_object_key]="verse";
       debug(poem) {                                       // poem (curly) close
         writefln(
@@ -2949,13 +2948,13 @@ void _poem_block_(L,O,T,C,N,Ma)(
         comp_obj_block.is_of                      = "block";
         comp_obj_block.is_a                       = "verse";
         comp_obj_block.ocn                        = obj_cite_number;
-        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
         comp_obj_block.text                       = an_object["substantive"];
         comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
         comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
         comp_obj_block.inline_links               = substantive_obj_misc_tuple[sObj.links];
         the_document_body_section                 ~= comp_obj_block;
-        obj_cite_number_poem["end"]               = to!string(obj_cite_number);
+        obj_cite_number_poem["end"]               = obj_cite_number.to!string;
         object_reset(an_object);
         processing.remove("verse");
         ++cntr;
@@ -2969,7 +2968,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
         obj_cite_number =
           ocn_emit(type["ocn_status"]);
         type["verse_new"] = State.off;
-      } else if (matchFirst(line, rgx.newline_eol_delimiter_only)) {
+      } else if (line.matchFirst(rgx.newline_eol_delimiter_only)) {
         type["verse_new"] = State.on;
         verse_line = TriState.off;
       }
@@ -3003,7 +3002,7 @@ void _poem_block_(L,O,T,C,N,Ma)(
         comp_obj_block.is_of                      = "block";
         comp_obj_block.is_a                       = "verse";
         comp_obj_block.ocn                        = obj_cite_number;
-        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+        comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
         comp_obj_block.text                       = an_object["substantive"];
         comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
         comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
@@ -3034,7 +3033,7 @@ void _quote_block_(L,O,T)(
   }
   auto rgx = Rgx();
   if (type["curly_quote"] == TriState.on) {
-    if (matchFirst(line, rgx.block_curly_quote_close)) {
+    if (line.matchFirst(rgx.block_curly_quote_close)) {
       debug(quote) {                              // quote (curly) close
         writeln(line);
       }
@@ -3048,7 +3047,7 @@ void _quote_block_(L,O,T)(
       an_object[an_object_key] ~= line ~= "\n";   // build quote array (or string)
     }
   } else if (type["tic_quote"] == TriState.on) {
-    if (matchFirst(line, rgx.block_tic_close)) {
+    if (line.matchFirst(rgx.block_tic_close)) {
       debug(quote) {                              // quote (tic) close
         writeln(line);
       }
@@ -3081,7 +3080,7 @@ void _table_block_(L,O,T)(
   }
   auto rgx = Rgx();
   if (type["curly_table"] == TriState.on) {
-    if (matchFirst(line, rgx.block_curly_table_close)) {
+    if (line.matchFirst(rgx.block_curly_table_close)) {
       debug(table) {                           // table (curly) close
         writeln(line);
       }
@@ -3095,7 +3094,7 @@ void _table_block_(L,O,T)(
       an_object[an_object_key] ~= line ~= "\n";           // build table array (or string)
     }
   } else if (type["tic_table"] == TriState.on) {
-    if (matchFirst(line, rgx.block_tic_close)) {
+    if (line.matchFirst(rgx.block_tic_close)) {
       debug(table) {                           // table (tic) close
         writeln(line);
       }
@@ -3177,7 +3176,7 @@ void _block_flag_line_empty_(B)(
     comp_obj_block.is_of                      = "block";
     comp_obj_block.is_a                       = "group";
     comp_obj_block.ocn                        = obj_cite_number;
-    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
     comp_obj_block.text                       = an_object["substantive"];
     comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
     comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
@@ -3223,7 +3222,7 @@ void _block_flag_line_empty_(B)(
     comp_obj_block.is_of                      = "block";
     comp_obj_block.is_a                       = "block";
     comp_obj_block.ocn                        = obj_cite_number;
-    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
     comp_obj_block.text                       = an_object["substantive"];
     comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
     comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
@@ -3270,7 +3269,7 @@ void _block_flag_line_empty_(B)(
     comp_obj_code.is_of                       = "block";
     comp_obj_code.is_a                        = "code";
     comp_obj_code.ocn                         = obj_cite_number;
-    comp_obj_code.obj_cite_number             = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+    comp_obj_code.obj_cite_number             = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
     comp_obj_code.text                        = an_object["substantive"];
     comp_obj_code.inline_notes_reg            = substantive_obj_misc_tuple[sObj.notes_reg];
     comp_obj_code.inline_notes_star           = substantive_obj_misc_tuple[sObj.notes_star];
@@ -3354,7 +3353,7 @@ void _block_flag_line_empty_(B)(
     comp_obj_block.is_of                      = "block";
     comp_obj_block.is_a                       = "quote";
     comp_obj_block.ocn                        = obj_cite_number;
-    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
     comp_obj_block.text                       = an_object["substantive"];
     comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
     comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
@@ -3401,7 +3400,7 @@ void _block_flag_line_empty_(B)(
     comp_obj_block.is_of                      = "block";
     comp_obj_block.is_a                       = "table";
     comp_obj_block.ocn                        = obj_cite_number;
-    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
+    comp_obj_block.obj_cite_number            = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
     comp_obj_block.text                       = an_object["substantive"];
     comp_obj_block.inline_notes_reg           = substantive_obj_misc_tuple[sObj.notes_reg];
     comp_obj_block.inline_notes_star          = substantive_obj_misc_tuple[sObj.notes_star];
@@ -3441,20 +3440,20 @@ auto _book_index_(L,I,O,T,B)(
     static assert(is(typeof(opt_action_bool) == bool[string]));
   }
   auto rgx = Rgx();
-  if (auto m = match(line, rgx.book_index)) {
+  if (auto m = line.match(rgx.book_index)) {
     /+ match book_index +/
     debug(bookindexmatch) {                       // book index
       writefln(
         "* [bookindex] %s\n",
-        to!string(m.captures[1]),
+        m.captures[1].to!string,
       );
     }
-    an_object["bookindex_nugget"] = to!string(m.captures[1]);
-  } else if (auto m = match(line, rgx.book_index_open))  {
+    an_object["bookindex_nugget"] = m.captures[1].to!string;
+  } else if (auto m = line.match(rgx.book_index_open))  {
     /+ match open book_index +/
     type["book_index"] = State.on;
     if (opt_action_bool["backmatter"] && opt_action_bool["section_bookindex"]) {
-      book_idx_tmp = to!string(m.captures[1]);
+      book_idx_tmp = m.captures[1].to!string;
       debug(bookindexmatch) {                       // book index
         writefln(
           "* [bookindex] %s\n",
@@ -3464,11 +3463,11 @@ auto _book_index_(L,I,O,T,B)(
     }
   } else if (type["book_index"] == State.on )  {
     /+ book_index flag set +/
-    if (auto m = match(line, rgx.book_index_close))  {
+    if (auto m = line.match(rgx.book_index_close))  {
       type["book_index"] = State.off;
       if (opt_action_bool["backmatter"]
       && opt_action_bool["section_bookindex"]) {
-        an_object["bookindex_nugget"] = book_idx_tmp ~ to!string(m.captures[1]);
+        an_object["bookindex_nugget"] = book_idx_tmp ~ m.captures[1].to!string;
         debug(bookindexmatch) {                     // book index
           writefln(
             "* [bookindex] %s\n",
@@ -3514,9 +3513,8 @@ auto _heading_found_(L,X,H,R,T)(
       writeln(dochead_make_identify_unmarked_headings);
     }
     char[][] make_headings_spl =
-      split(
-        cast(char[]) dochead_make_identify_unmarked_headings,
-        rgx.make_heading_delimiter);
+      (cast(char[]) dochead_make_identify_unmarked_headings)
+        .split(rgx.make_heading_delimiter);
     debug(headingsfound) {
       writeln(make_headings_spl.length);
       writeln(make_headings_spl);
@@ -3525,7 +3523,7 @@ auto _heading_found_(L,X,H,R,T)(
     case 7 :
       if (!empty(make_headings_spl[6])) {
         heading_match_str["h_4"] =
-          "^(" ~ to!string(make_headings_spl[6]) ~ ")";
+          "^(" ~ make_headings_spl[6].to!string ~ ")";
         heading_match_rgx["h_4"] =
           regex(heading_match_str["h_4"]);
       }
@@ -3533,7 +3531,7 @@ auto _heading_found_(L,X,H,R,T)(
     case 6 :
       if (!empty(make_headings_spl[5])) {
         heading_match_str["h_3"] =
-          "^(" ~ to!string(make_headings_spl[5]) ~ ")";
+          "^(" ~ make_headings_spl[5].to!string ~ ")";
         heading_match_rgx["h_3"] =
           regex(heading_match_str["h_3"]);
       }
@@ -3541,7 +3539,7 @@ auto _heading_found_(L,X,H,R,T)(
     case 5 :
       if (!empty(make_headings_spl[4])) {
         heading_match_str["h_2"] =
-          "^(" ~ to!string(make_headings_spl[4]) ~ ")";
+          "^(" ~ make_headings_spl[4].to!string ~ ")";
         heading_match_rgx["h_2"] =
           regex(heading_match_str["h_2"]);
       }
@@ -3549,7 +3547,7 @@ auto _heading_found_(L,X,H,R,T)(
     case 4 :
       if (!empty(make_headings_spl[3])) {
         heading_match_str["h_1"] =
-          "^(" ~ to!string(make_headings_spl[3]) ~ ")";
+          "^(" ~ make_headings_spl[3].to!string ~ ")";
         heading_match_rgx["h_1"] =
           regex(heading_match_str["h_1"]);
       }
@@ -3557,7 +3555,7 @@ auto _heading_found_(L,X,H,R,T)(
     case 3 :
       if (!empty(make_headings_spl[2])) {
         heading_match_str["h_D"] =
-          "^(" ~ to!string(make_headings_spl[2]) ~ ")";
+          "^(" ~ make_headings_spl[2].to!string ~ ")";
         heading_match_rgx["h_D"] =
           regex(heading_match_str["h_D"]);
       }
@@ -3565,7 +3563,7 @@ auto _heading_found_(L,X,H,R,T)(
     case 2 :
       if (!empty(make_headings_spl[1])) {
         heading_match_str["h_C"] =
-          "^(" ~ to!string(make_headings_spl[1]) ~ ")";
+          "^(" ~ make_headings_spl[1].to!string ~ ")";
         heading_match_rgx["h_C"] =
           regex(heading_match_str["h_C"]);
       }
@@ -3573,7 +3571,7 @@ auto _heading_found_(L,X,H,R,T)(
     case 1 :
       if (!empty(make_headings_spl[0])) {
         heading_match_str["h_B"] =
-          "^(" ~ to!string(make_headings_spl[0]) ~ ")";
+          "^(" ~ make_headings_spl[0].to!string ~ ")";
         heading_match_rgx["h_B"] =
           regex(heading_match_str["h_B"]);
       }
@@ -3608,43 +3606,43 @@ auto _heading_make_set_(L,C,R,T)(
   && ((type["para"] == State.off)
   && (type["heading"] == State.off))) {
     /+ heading make set +/
-    if (matchFirst(line, heading_match_rgx["h_B"])) {
+    if (line.matchFirst(heading_match_rgx["h_B"])) {
       line = "B~ " ~ line;
       debug(headingsfound) {
         writeln(line);
       }
     }
-    if (matchFirst(line, heading_match_rgx["h_C"])) {
+    if (line.matchFirst(heading_match_rgx["h_C"])) {
       line = "C~ " ~ line;
       debug(headingsfound) {
         writeln(line);
       }
     }
-    if (matchFirst(line, heading_match_rgx["h_D"])) {
+    if (line.matchFirst(heading_match_rgx["h_D"])) {
       line = "D~ " ~ line;
       debug(headingsfound) {
         writeln(line);
       }
     }
-    if (matchFirst(line, heading_match_rgx["h_1"])) {
+    if (line.matchFirst(heading_match_rgx["h_1"])) {
       line = "1~ " ~ line;
       debug(headingsfound) {
         writeln(line);
       }
     }
-    if (matchFirst(line, heading_match_rgx["h_2"])) {
+    if (line.matchFirst(heading_match_rgx["h_2"])) {
       line = "2~ " ~ line;
       debug(headingsfound) {
         writeln(line);
       }
     }
-    if (matchFirst(line, heading_match_rgx["h_3"])) {
+    if (line.matchFirst(heading_match_rgx["h_3"])) {
       line = "3~ " ~ line;
       debug(headingsfound) {
         writeln(line);
       }
     }
-    if (matchFirst(line, heading_match_rgx["h_4"])) {
+    if (line.matchFirst(heading_match_rgx["h_4"])) {
       line = "4~ " ~ line;
       debug(headingsfound) {
         writeln(line);
@@ -3679,10 +3677,10 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
     static assert(is(typeof(dochead_meta_aa) == string[string][string]));
   }
   auto rgx = Rgx();
-  if (auto m = match(line, rgx.heading)) {
+  if (auto m = line.match(rgx.heading)) {
     /+ heading match +/
     type["heading"] = State.on;
-    if (match(line, rgx.heading_seg_and_above)) {
+    if (line.match(rgx.heading_seg_and_above)) {
       type["biblio_section"] = State.off;
       type["glossary_section"] = State.off;
       type["blurb_section"] = State.off;
@@ -3701,7 +3699,7 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
           dochead_meta_aa["creator"]["author"]);
       collapsed_lev["h0"] = 0;
       an_object["lev_collapsed_number"] =
-        to!string(collapsed_lev["h0"]);
+        collapsed_lev["h0"].to!string;
       lv["lv"] = DocStructMarkupHeading.h_sect_A;
       ++lv["h0"];
       lv["h1"] = State.off;
@@ -3715,7 +3713,7 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
     case "B":
       collapsed_lev["h1"] = collapsed_lev["h0"] + 1;
       an_object["lev_collapsed_number"] =
-        to!string(collapsed_lev["h1"]);
+        collapsed_lev["h1"].to!string;
       lv["lv"] = DocStructMarkupHeading.h_sect_B;
       ++lv["h1"];
       lv["h2"] = State.off;
@@ -3728,7 +3726,7 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
     case "C":
       collapsed_lev["h2"] = collapsed_lev["h1"] + 1;
       an_object["lev_collapsed_number"] =
-        to!string(collapsed_lev["h2"]);
+        collapsed_lev["h2"].to!string;
       lv["lv"] = DocStructMarkupHeading.h_sect_C;
       ++lv["h2"];
       lv["h3"] = State.off;
@@ -3740,7 +3738,7 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
     case "D":
       collapsed_lev["h3"] = collapsed_lev["h2"] + 1;
       an_object["lev_collapsed_number"] =
-        to!string(collapsed_lev["h3"]);
+        collapsed_lev["h3"].to!string;
       lv["lv"] = DocStructMarkupHeading.h_sect_D;
       ++lv["h3"];
       lv["h4"] = State.off;
@@ -3759,7 +3757,7 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
         collapsed_lev["h4"] = collapsed_lev["h0"] + 1;
       }
       an_object["lev_collapsed_number"] =
-        to!string(collapsed_lev["h4"]);
+        collapsed_lev["h4"].to!string;
       lv["lv"] = DocStructMarkupHeading.h_text_1;
       ++lv["h4"];
       lv["h5"] = State.off;
@@ -3769,11 +3767,11 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
     case "2":
       if (lv["h5"] > State.off) {
         an_object["lev_collapsed_number"] =
-          to!string(collapsed_lev["h5"]);
+          collapsed_lev["h5"].to!string;
       } else if (lv["h4"] > State.off) {
         collapsed_lev["h5"] = collapsed_lev["h4"] + 1;
         an_object["lev_collapsed_number"] =
-          to!string(collapsed_lev["h5"]);
+          collapsed_lev["h5"].to!string;
       }
       lv["lv"] = DocStructMarkupHeading.h_text_2;
       ++lv["h5"];
@@ -3783,11 +3781,11 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
     case "3":
       if (lv["h6"] > State.off) {
         an_object["lev_collapsed_number"] =
-          to!string(collapsed_lev["h6"]);
+          collapsed_lev["h6"].to!string;
       } else if (lv["h5"] > State.off) {
         collapsed_lev["h6"] = collapsed_lev["h5"] + 1;
         an_object["lev_collapsed_number"] =
-          to!string(collapsed_lev["h6"]);
+          collapsed_lev["h6"].to!string;
       }
       lv["lv"] = DocStructMarkupHeading.h_text_3;
       ++lv["h6"];
@@ -3796,20 +3794,20 @@ auto _heading_matched_(L,C,O,K,Lv,Lc,T,Me)(
     case "4":
       if (lv["h7"] > State.off) {
         an_object["lev_collapsed_number"] =
-          to!string(collapsed_lev["h7"]);
+          collapsed_lev["h7"].to!string;
       } else if (lv["h6"] > State.off) {
         collapsed_lev["h7"] = collapsed_lev["h6"] + 1;
         an_object["lev_collapsed_number"] =
-          to!string(collapsed_lev["h7"]);
+          collapsed_lev["h7"].to!string;
       }
       lv["lv"] = DocStructMarkupHeading.h_text_4;
       ++lv["h7"];
       goto default;
     default:
-      an_object["lev_markup_number"] = to!string(lv["lv"]);
+      an_object["lev_markup_number"] = lv["lv"].to!string;
     }
     debug(heading) {                         // heading
-      writeln(strip(line));
+      writeln(line.strip);
     }
   }
 }
@@ -3848,31 +3846,31 @@ void _para_match_(L,O,K,I,B,T,C)(
       "base_position" : 0,
     ];
     bullet = false;
-    if (auto m = matchFirst(line, rgx.para_indent)) {
+    if (auto m = line.matchFirst(rgx.para_indent)) {
       debug(paraindent) {                    // para indent
         writeln(line);
       }
-      indent["hang_position"] = to!int(m.captures[1]);
+      indent["hang_position"] = (m.captures[1]).to!int;
       indent["base_position"] = 0;
-    } else if (matchFirst(line, rgx.para_bullet)) {
+    } else if (line.matchFirst(rgx.para_bullet)) {
       debug(parabullet) {                    // para bullet
         writeln(line);
       }
       bullet = true;
-    } else if (auto m = matchFirst(line, rgx.para_indent_hang)) {
+    } else if (auto m = line.matchFirst(rgx.para_indent_hang)) {
       debug(paraindenthang) {                // para indent hang
         writeln(line);
       }
       indent=[
-        "hang_position" : to!int(m.captures[1]),
-        "base_position" : to!int(m.captures[2]),
+        "hang_position" : (m.captures[1]).to!int,
+        "base_position" : (m.captures[2]).to!int,
       ];
-    } else if (auto m = matchFirst(line, rgx.para_bullet_indent)) {
+    } else if (auto m = line.matchFirst(rgx.para_bullet_indent)) {
       debug(parabulletindent) {              // para bullet indent
         writeln(line);
       }
       indent=[
-        "hang_position" : to!int(m.captures[1]),
+        "hang_position" : (m.captures[1]).to!int,
         "base_position" : 0,
       ];
       bullet = true;
@@ -3890,7 +3888,7 @@ auto font_faces_line(T)(
   return ref T  textline,
 ) {
   auto rgx = Rgx();
-  if (match(textline, rgx.inline_faces_line)) {
+  if (textline.match(rgx.inline_faces_line)) {
     textline = (textline)
       .replaceFirst(rgx.inline_emphasis_line,   ("*{$1}*$2"))
       .replaceFirst(rgx.inline_bold_line,       ("!{$1}!$2"))
@@ -3958,9 +3956,9 @@ struct ObjInlineMarkupMunge {
       static assert(is(typeof(obj_txt_in) == string));
     }
     /+ url matched +/
-    if (match(obj_txt_in, rgx.inline_url_generic)) {
+    if (obj_txt_in.match(rgx.inline_url_generic)) {
       /+ link: naked url: http://url +/
-      if (match(obj_txt_in, rgx.inline_link_naked_url)) {
+      if (obj_txt_in.match(rgx.inline_link_naked_url)) {
         obj_txt_in = (obj_txt_in).replaceAll(
             rgx.inline_link_naked_url,
             ("$1"
@@ -3974,7 +3972,7 @@ struct ObjInlineMarkupMunge {
          maps to:
            { link which includes url as footnote }http://url~{ { http://url }http://url }~
       +/
-      if (match(obj_txt_in, rgx.inline_link_endnote_url_helper)) {
+      if (obj_txt_in.match(rgx.inline_link_endnote_url_helper)) {
         obj_txt_in = (obj_txt_in).replaceAll(
           rgx.inline_link_endnote_url_helper_punctuated,
           (mkup.lnk_o ~ "$1" ~ mkup.lnk_c
@@ -3995,7 +3993,7 @@ struct ObjInlineMarkupMunge {
       /+ link with regular markup:
          { linked text or image }http://url
       +/
-      if (match(obj_txt_in, rgx.inline_link_markup_regular)) {
+      if (obj_txt_in.match(rgx.inline_link_markup_regular)) {
         obj_txt_in = (obj_txt_in).replaceAll(
           rgx.inline_link_markup_regular,
           ("$1"
@@ -4027,8 +4025,8 @@ struct ObjInlineMarkupMunge {
     if (!(stage_reset_note_numbers) && reset_note_numbers) {
       stage_reset_note_numbers = true;
     }
-    if (match(obj_txt_in, rgx.inline_notes_al_gen)) {
-      if (auto m = matchAll(obj_txt_in, rgx.inline_text_and_note_al_)) {
+    if (obj_txt_in.match(rgx.inline_notes_al_gen)) {
+      if (auto m = obj_txt_in.matchAll(rgx.inline_text_and_note_al_)) {
         if (stage_reset_note_numbers) {
           n_foot = 0;
           n_foot_reg = 0;
@@ -4037,25 +4035,25 @@ struct ObjInlineMarkupMunge {
         }
         stage_reset_note_numbers = false;
         foreach(n; m) {
-          if (match(to!string(n.hit), rgx.inline_al_delimiter_open_symbol_star)) {
+          if (n.hit.to!string.match(rgx.inline_al_delimiter_open_symbol_star)) {
             flg_notes_star =  true;
             ++n_foot_sp_asterisk;
             asterisks_ = "*";
             n_foot=n_foot_sp_asterisk;
-            obj_txt_out ~= (to!string(n.hit)).replaceFirst(
+            obj_txt_out ~= n.hit.to!string.replaceFirst(
               rgx.inline_al_delimiter_open_symbol_star,
               (mkup.en_a_o ~ replicate(asterisks_, n_foot_sp_asterisk) ~ " ")
             ) ~ "\n";
-          } else if (match(to!string(n.hit), rgx.inline_al_delimiter_open_regular)) {
+          } else if (n.hit.to!string.match(rgx.inline_al_delimiter_open_regular)) {
             flg_notes_reg =  true;
             ++n_foot_reg;
             n_foot=n_foot_reg;
-            obj_txt_out ~= (to!string(n.hit)).replaceFirst(
+            obj_txt_out ~= n.hit.to!string.replaceFirst(
               rgx.inline_al_delimiter_open_regular,
               (mkup.en_a_o ~ to!string(n_foot) ~ " ")
             ) ~ "\n";
           } else {
-            obj_txt_out ~= to!string(n.hit) ~ "\n";
+            obj_txt_out ~= n.hit.to!string ~ "\n";
           }
         }
       }
@@ -4086,19 +4084,16 @@ struct ObjInlineMarkupMunge {
     bool urls = false;
     tail = "";
     /+ special endnotes +/
-    obj_txt_in = replaceAll(
-      obj_txt_in,
+    obj_txt_in = obj_txt_in.replaceAll(
       rgx.inline_notes_curly_sp_asterisk,
       (mkup.en_a_o ~ "*" ~ " $1" ~ mkup.en_a_c)
     );
-    obj_txt_in =
-      replaceAll(
-        obj_txt_in,
-        rgx.inline_notes_curly_sp_plus,
-        (mkup.en_a_o ~ "+" ~ " $1" ~ mkup.en_a_c)
-      );
+    obj_txt_in = obj_txt_in.replaceAll(
+      rgx.inline_notes_curly_sp_plus,
+      (mkup.en_a_o ~ "+" ~ " $1" ~ mkup.en_a_c)
+    );
     /+ url matched +/
-    if (match(obj_txt_in, rgx.inline_url)) {
+    if (obj_txt_in.match(rgx.inline_url)) {
       urls = true;
       obj_txt_in = url_links(obj_txt_in);
     }
@@ -4116,7 +4111,7 @@ struct ObjInlineMarkupMunge {
       }
     }
     auto t = tuple(
-      to!string(obj_txt_out),
+      obj_txt_out,
       ftn[1],
       ftn[2],
       urls,
@@ -4155,7 +4150,7 @@ struct ObjInlineMarkupMunge {
       writeln(__LINE__);
       writeln(obj_txt_in);
       writeln(__LINE__);
-      writeln(to!string(obj_txt["munge"]));
+      writeln(obj_txt["munge"].to!string);
     }
     return t;
   }
@@ -4188,7 +4183,7 @@ struct ObjInlineMarkupMunge {
       writeln(__LINE__);
       writeln(obj_txt_in);
       writeln(__LINE__);
-      writeln(to!string(obj_txt["munge"]));
+      writeln(obj_txt["munge"].to!string);
     }
     return t;
   }
@@ -4385,7 +4380,7 @@ struct ObjInlineMarkup {
   }
   body {
     obj_txt["munge"] = obj_[obj_key_].dup;
-    obj_txt["munge"] = (match(obj_["is"], ctRegex!(`verse|code`)))
+    obj_txt["munge"] = (obj_["is"].match(ctRegex!(`verse|code`)))
     ? obj_txt["munge"]
     : strip(obj_txt["munge"]);
     static __gshared string[] anchor_tags_ = [];
@@ -4400,7 +4395,7 @@ struct ObjInlineMarkup {
       // TODO WORK ON, you still need to ensure that level 1 anchor_tags are unique
       obj_txt["munge"]=_configured_auto_heading_numbering_and_segment_anchor_tags(obj_txt["munge"], obj_, dochead_make_aa);
       obj_txt["munge"]=_make_segment_anchor_tags_if_none_provided(obj_txt["munge"], obj_["lev"]);
-      if (auto m = match(obj_txt["munge"], rgx.heading_anchor_tag)) {
+      if (auto m = obj_txt["munge"].match(rgx.heading_anchor_tag)) {
         anchor_tag = m.captures[1];
         anchor_tags_ ~= anchor_tag;
       } else if (obj_["lev"] == "1") {
@@ -4468,7 +4463,7 @@ struct ObjInlineMarkup {
    debug(asserts) {
      static assert(is(typeof(heading_toc_) == char[]));
    }
-   auto m = matchFirst(cast(char[]) heading_toc_, rgx.heading);
+   auto m = (cast(char[]) heading_toc_).matchFirst(rgx.heading);
    heading_toc_ = (m.post).replaceAll(
      rgx.inline_notes_curly_gen,
      "");
@@ -4501,10 +4496,10 @@ struct ObjInlineMarkup {
     auto attrib="";
     string toc_txt_, subtoc_txt_;
     int[string] indent;
-    if (to!int(obj_["lev_markup_number"]) > 0) {
+    if (obj_["lev_markup_number"].to!int > 0) {
       indent=[
-        "hang_position" : to!int(obj_["lev_markup_number"]),
-        "base_position" : to!int(obj_["lev_markup_number"]),
+        "hang_position" : obj_["lev_markup_number"].to!int,
+        "base_position" : obj_["lev_markup_number"].to!int,
       ];
       toc_txt_ = format(
         "{ %s }#%s",
@@ -4521,7 +4516,7 @@ struct ObjInlineMarkup {
       comp_obj_toc.indent_hang           = indent["hang_position"];
       comp_obj_toc.indent_base           = indent["base_position"];
       comp_obj_toc.bullet                = false;
-      comp_obj_toc.text                  = to!string(toc_txt_).strip;
+      comp_obj_toc.text                  = toc_txt_.to!string.strip;
       comp_obj_toc.inline_links          = true;
       the_table_of_contents_section["scroll"] ~= comp_obj_toc;
     } else {
@@ -4550,7 +4545,7 @@ struct ObjInlineMarkup {
     comp_obj_toc.obj_cite_number       = "";
     comp_obj_toc.bullet                = false;
     comp_obj_toc.inline_links          = true;
-    switch (to!int(obj_["lev_markup_number"])) {
+    switch (obj_["lev_markup_number"].to!int) {
     case 0:
       indent=[
         "hang_position" : 0,
@@ -4560,14 +4555,14 @@ struct ObjInlineMarkup {
       toc_txt_= munge.url_links(toc_txt_);
       comp_obj_toc.indent_hang             = indent["hang_position"];
       comp_obj_toc.indent_base             = indent["base_position"];
-      comp_obj_toc.text                    = to!string(toc_txt_).strip;
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
       comp_obj_toc.inline_links            = true;
       the_table_of_contents_section["seg"] ~= comp_obj_toc;
       break;
     case 1: .. case 3:
       indent=[
-        "hang_position" : to!int(obj_["lev_markup_number"]),
-        "base_position" : to!int(obj_["lev_markup_number"]),
+        "hang_position" : obj_["lev_markup_number"].to!int,
+        "base_position" : obj_["lev_markup_number"].to!int,
       ];
       toc_txt_ = format(
         "%s",
@@ -4576,7 +4571,7 @@ struct ObjInlineMarkup {
       toc_txt_= munge.url_links(toc_txt_);
       comp_obj_toc.indent_hang             = indent["hang_position"];
       comp_obj_toc.indent_base             = indent["base_position"];
-      comp_obj_toc.text                    = to!string(toc_txt_).strip;
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
       comp_obj_toc.inline_links            = true;
       the_table_of_contents_section["seg"] ~= comp_obj_toc;
       break;
@@ -4591,12 +4586,12 @@ struct ObjInlineMarkup {
       lev4_subtoc[segment_anchor_tag_that_object_belongs_to] = [];
       toc_txt_= munge.url_links(toc_txt_);
       indent=[
-        "hang_position" : to!int(obj_["lev_markup_number"]),
-        "base_position" : to!int(obj_["lev_markup_number"]),
+        "hang_position" : obj_["lev_markup_number"].to!int,
+        "base_position" : obj_["lev_markup_number"].to!int,
       ];
       comp_obj_toc.indent_hang             = indent["hang_position"];
       comp_obj_toc.indent_base             = indent["base_position"];
-      comp_obj_toc.text                    = to!string(toc_txt_).strip;
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
       comp_obj_toc.inline_links            = true;
       the_table_of_contents_section["seg"] ~= comp_obj_toc;
       break;
@@ -4615,15 +4610,15 @@ struct ObjInlineMarkup {
         _anchor_tag,
       );
       lev4_subtoc[segment_anchor_tag_that_object_belongs_to]
-      ~= obj_["lev_markup_number"] ~ "~ " ~ to!string(subtoc_txt_).strip;
+      ~= obj_["lev_markup_number"] ~ "~ " ~ subtoc_txt_.to!string.strip;
       toc_txt_= munge.url_links(toc_txt_);
       indent=[
-        "hang_position" : to!int(obj_["lev_markup_number"]),
-        "base_position" : to!int(obj_["lev_markup_number"]),
+        "hang_position" : obj_["lev_markup_number"].to!int,
+        "base_position" : obj_["lev_markup_number"].to!int,
       ];
       comp_obj_toc.indent_hang             = indent["hang_position"];
       comp_obj_toc.indent_base             = indent["base_position"];
-      comp_obj_toc.text                    = to!string(toc_txt_).strip;
+      comp_obj_toc.text                    = toc_txt_.to!string.strip;
       comp_obj_toc.inline_links            = true;
       the_table_of_contents_section["seg"] ~= comp_obj_toc;
       break;
@@ -4667,7 +4662,7 @@ private:
       static __gshared string heading_number_auto_composite = "";
       if (heading_num_top_level==9) {
         if (dochead_make_aa["make"]["num_depth"].length > 0) {
-          heading_num_depth = to!uint(dochead_make_aa["make"]["num_depth"]);
+          heading_num_depth = dochead_make_aa["make"]["num_depth"].to!uint;
         }
         switch (dochead_make_aa["make"]["num_top"]) {
         case "A":
@@ -4700,7 +4695,7 @@ private:
       /+ num_depth minimum 0 (1.) default 2 (1.1.1) max 3 (1.1.1.1) implement +/
       if (
         heading_num_top_level
-        > to!uint(obj_["lev_markup_number"])
+        > obj_["lev_markup_number"].to!uint
       ) {
         heading_num_0 = 0;
         heading_num_1 = 0;
@@ -4708,7 +4703,7 @@ private:
         heading_num_3 = 0;
       } else if (
         heading_num_top_level
-        == to!uint(obj_["lev_markup_number"])
+        == obj_["lev_markup_number"].to!uint
       ) {
         heading_num_0 ++;
         heading_num_1 = 0;
@@ -4716,54 +4711,54 @@ private:
         heading_num_3 = 0;
       } else if (
         heading_num_top_level
-        == (to!uint(obj_["lev_markup_number"]) - 1)
+        == (obj_["lev_markup_number"].to!uint - 1)
       ) {
         heading_num_1 ++;
         heading_num_2 = 0;
         heading_num_3 = 0;
       } else if (
         heading_num_top_level
-        == (to!uint(obj_["lev_markup_number"]) - 2)
+        == (obj_["lev_markup_number"].to!uint - 2)
       ) {
         heading_num_2 ++;
         heading_num_3 = 0;
       } else if (
         heading_num_top_level
-        == (to!uint(obj_["lev_markup_number"]) - 3)
+        == (obj_["lev_markup_number"].to!uint - 3)
       ) {
         heading_num_3 ++;
       }
       if (heading_num_3 > 0) {
         heading_number_auto_composite =
           (heading_num_depth == 3)
-          ? ( to!string(heading_num_0) ~ "."
-              ~ to!string(heading_num_1) ~ "."
-              ~ to!string(heading_num_2) ~ "."
-              ~ to!string(heading_num_3)
+          ? ( heading_num_0.to!string ~ "."
+              ~ heading_num_1.to!string ~ "."
+              ~ heading_num_2.to!string ~ "."
+              ~ heading_num_3.to!string
             )
           : "";
       } else if (heading_num_2 > 0) {
         heading_number_auto_composite =
           ((heading_num_depth >= 2)
           && (heading_num_depth <= 3))
-          ?  ( to!string(heading_num_0) ~ "."
-               ~ to!string(heading_num_1) ~ "."
-               ~ to!string(heading_num_2)
+          ?  ( heading_num_0.to!string ~ "."
+               ~ heading_num_1.to!string ~ "."
+               ~ heading_num_2.to!string
              )
           : "";
       } else if (heading_num_1 > 0) {
         heading_number_auto_composite =
           ((heading_num_depth >= 1)
           && (heading_num_depth <= 3))
-          ? ( to!string(heading_num_0) ~ "."
-               ~ to!string(heading_num_1)
+          ? ( heading_num_0.to!string ~ "."
+               ~ heading_num_1.to!string
              )
           : "";
       } else if (heading_num_0 > 0) {
         heading_number_auto_composite =
           ((heading_num_depth >= 0)
           && (heading_num_depth <= 3))
-          ?  (to!string(heading_num_0))
+          ?  (heading_num_0.to!string)
           : "";
       } else {
         heading_number_auto_composite = "";
@@ -4771,7 +4766,7 @@ private:
       debug(heading_number_auto) {
         writeln(heading_number_auto_composite);
       }
-      if (!(match(munge_, rgx.heading_anchor_tag))
+      if (!(munge_.match(rgx.heading_anchor_tag))
       && !empty(heading_number_auto_composite)) {
         munge_=(munge_)
         .replaceFirst(rgx.heading,
@@ -4800,13 +4795,13 @@ private:
       static assert(is(typeof(munge_) == string));
       static assert(is(typeof(lev_)   == string));
     }
-    if (!(match(munge_, rgx.heading_anchor_tag))) { // if (anchor_tags_.length == 0) {
-      if (match(munge_, rgx.heading_identify_anchor_tag)) {
-        if (auto m = match(munge_, rgx.heading_extract_named_anchor_tag)) {
+    if (!(munge_.match(rgx.heading_anchor_tag))) {
+      if (munge_.match(rgx.heading_identify_anchor_tag)) {
+        if (auto m = munge_.match(rgx.heading_extract_named_anchor_tag)) {
           munge_=(munge_).replaceFirst(
             rgx.heading_marker_missing_tag,
-            "$1~" ~ toLower(m.captures[1]) ~ "_"  ~ m.captures[2] ~ " ");
-        } else if (auto m = match(munge_, rgx.heading_extract_unnamed_anchor_tag)) {
+            "$1~" ~ m.captures[1].toLower ~ "_"  ~ m.captures[2] ~ " ");
+        } else if (auto m = munge_.match(rgx.heading_extract_unnamed_anchor_tag)) {
           munge_=(munge_).replaceFirst(
             rgx.heading_marker_missing_tag,
             "$1~" ~ "s" ~ m.captures[1] ~ " ");
@@ -4816,7 +4811,7 @@ private:
         heading_num_lev1 ++;
         munge_=(munge_).replaceFirst(
           rgx.heading_marker_missing_tag,
-          "$1~" ~ "x" ~ to!string(heading_num_lev1) ~ " ");
+          "$1~" ~ "x" ~ heading_num_lev1.to!string ~ " ");
       }
     }
     return munge_;
@@ -4984,22 +4979,22 @@ struct ObjAttributes {
     }
   }
   body {
-    if (matchFirst(obj_txt_in, rgx.para_bullet)) {
+    if (obj_txt_in.matchFirst(rgx.para_bullet)) {
       _obj_attributes =" \"bullet\": \"true\","
       ~ " \"indent_hang\": 0,"
       ~ " \"indent_base\": 0,";
-    } else if (auto m = matchFirst(obj_txt_in, rgx.para_bullet_indent)) {
+    } else if (auto m = obj_txt_in.matchFirst(rgx.para_bullet_indent)) {
       _obj_attributes =" \"bullet\": \"true\","
-      ~ " \"indent_hang\": " ~ to!string(m.captures[1]) ~ ","
-      ~ " \"indent_base\": " ~ to!string(m.captures[1]) ~ ",";
-    } else if (auto m = matchFirst(obj_txt_in, rgx.para_indent_hang)) {
+      ~ " \"indent_hang\": " ~ m.captures[1].to!string ~ ","
+      ~ " \"indent_base\": " ~ m.captures[1].to!string ~ ",";
+    } else if (auto m = obj_txt_in.matchFirst(rgx.para_indent_hang)) {
       _obj_attributes =" \"bullet\": \"false\","
-      ~ " \"indent_hang\": " ~ to!string(m.captures[1]) ~ ","
-      ~ " \"indent_base\": " ~  to!string(m.captures[2]) ~ ",";
-    } else if (auto m = matchFirst(obj_txt_in, rgx.para_indent)) {
+      ~ " \"indent_hang\": " ~ m.captures[1].to!string ~ ","
+      ~ " \"indent_base\": " ~  m.captures[2].to!string ~ ",";
+    } else if (auto m = obj_txt_in.matchFirst(rgx.para_indent)) {
       _obj_attributes =" \"bullet\": \"false\","
-      ~ " \"indent_hang\": " ~ to!string(m.captures[1]) ~ ","
-      ~ " \"indent_base\": " ~ to!string(m.captures[1]) ~ ",";
+      ~ " \"indent_hang\": " ~ m.captures[1].to!string ~ ","
+      ~ " \"indent_base\": " ~ m.captures[1].to!string ~ ",";
     } else {
       _obj_attributes =" \"bullet\": \"false\","
       ~ " \"indent_hang\": 0,"
@@ -5256,7 +5251,7 @@ struct BookIndexNuggetHash {
       if (!bookindex_section.empty) {
         writeln(
           "* [bookindex] ",
-          "[", to!string(obj_cite_number), ": ", segment_anchor_tag, "] ", bookindex_section
+          "[", obj_cite_number.to!string, ": ", segment_anchor_tag, "] ", bookindex_section
         );
       }
     }
@@ -5265,41 +5260,39 @@ struct BookIndexNuggetHash {
     auto rgx = Rgx();
     if (!bookindex_section.empty) {
       auto bi_main_terms_split_arr =
-        split(bookindex_section, rgx.bi_main_terms_split);
+        bookindex_section.split(rgx.bi_main_terms_split);
       foreach (bi_main_terms_content; bi_main_terms_split_arr) {
         auto bi_main_term_and_rest =
-          split(bi_main_terms_content, rgx.bi_main_term_plus_rest_split);
-        if (auto m = match(
-          bi_main_term_and_rest[0],
+          bi_main_terms_content.split(rgx.bi_main_term_plus_rest_split);
+        if (auto m = bi_main_term_and_rest[0].match(
           rgx.bi_term_and_obj_cite_numbers_match)
         ) {
-          main_term = strip(m.captures[1]);
-          obj_cite_number_offset = to!int(m.captures[2]);
+          main_term = m.captures[1].strip;
+          obj_cite_number_offset = m.captures[2].to!int;
           obj_cite_number_endpoint=(obj_cite_number + obj_cite_number_offset);
-          obj_cite_numbers ~= (to!string(obj_cite_number) ~ "-" ~ to!string(obj_cite_number_endpoint)
+          obj_cite_numbers ~= (obj_cite_number.to!string ~ "-" ~ to!string(obj_cite_number_endpoint)
           ~ ":" ~ segment_anchor_tag);
         } else {
-          main_term = strip(bi_main_term_and_rest[0]);
-          obj_cite_numbers ~= to!string(obj_cite_number)
+          main_term = bi_main_term_and_rest[0].strip;
+          obj_cite_numbers ~= obj_cite_number.to!string
           ~ ":" ~ segment_anchor_tag;
         }
         bi[main_term]["_a"] ~= obj_cite_numbers;
         obj_cite_numbers=null;
         if (bi_main_term_and_rest.length > 1) {
           auto bi_sub_terms_split_arr =
-            split(
-              bi_main_term_and_rest[1],
+            bi_main_term_and_rest[1].split(
               rgx.bi_sub_terms_plus_obj_cite_number_offset_split
             );
           foreach (sub_terms_bits; bi_sub_terms_split_arr) {
-            if (auto m = match(sub_terms_bits, rgx.bi_term_and_obj_cite_numbers_match)) {
-              sub_term = strip(m.captures[1]);
-              obj_cite_number_offset = to!int(m.captures[2]);
+            if (auto m = sub_terms_bits.match(rgx.bi_term_and_obj_cite_numbers_match)) {
+              sub_term = m.captures[1].strip;
+              obj_cite_number_offset = m.captures[2].to!int;
               obj_cite_number_endpoint=(obj_cite_number + obj_cite_number_offset);
-              obj_cite_numbers ~= (to!string(obj_cite_number) ~ " - " ~ to!string(obj_cite_number_endpoint)
+              obj_cite_numbers ~= (obj_cite_number.to!string ~ " - " ~ to!string(obj_cite_number_endpoint)
               ~ ":" ~ segment_anchor_tag);
             } else {
-              sub_term = strip(sub_terms_bits);
+              sub_term = sub_terms_bits.strip;
               obj_cite_numbers ~= to!string(obj_cite_number)
               ~ ":" ~ segment_anchor_tag;
             }
@@ -5480,7 +5473,7 @@ struct BookIndexReportSection {
         bi_tmp_seg = "!{" ~ mainkey ~ "}! ";
         auto bkidx_lnk_seg(string locs) {
           string markup = "";
-          if (auto m = matchFirst(locs, rgx.book_index_go_seg)) {
+          if (auto m = locs.matchFirst(rgx.book_index_go_seg)) {
             markup =
               munge.url_links("{ " ~ m["link"] ~ " }"
               ~ mkup.mark_internal_site_lnk ~ m["seg"] ~ ".fnSuffix"
@@ -5492,7 +5485,7 @@ struct BookIndexReportSection {
         }
         auto bkidx_lnk_scroll(string locs) {
           string markup = "";
-          if (auto m = matchFirst(locs, rgx.book_index_go)) {
+          if (auto m = locs.matchFirst(rgx.book_index_go)) {
             markup =
               munge.url_links("{ " ~ m["link"] ~ " }"
               ~ mkup.mark_internal_site_lnk
@@ -5530,7 +5523,7 @@ struct BookIndexReportSection {
         comp_obj_para.use                   = "backmatter";
         comp_obj_para.is_of                 = "para";
         comp_obj_para.is_a                  = "bookindex";
-        comp_obj_para.text                  = to!string(bi_tmp_scroll).strip;
+        comp_obj_para.text                  = bi_tmp_scroll.to!string.strip;
         comp_obj_para.ocn                   = obj_cite_number;
         comp_obj_para.obj_cite_number       = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
         comp_obj_para.anchor_tags           = bi_tmp_tags;
@@ -5539,7 +5532,7 @@ struct BookIndexReportSection {
         comp_obj_para.bullet                = false;
         comp_obj_para.inline_links          = true;
         bookindex_section["scroll"]         ~= comp_obj_para;
-        comp_obj_para.text                  = to!string(bi_tmp_seg).strip;
+        comp_obj_para.text                  = bi_tmp_seg.to!string.strip;
         bookindex_section["seg"]            ~= comp_obj_para;
         ++obj_cite_number;
         ++mkn;
@@ -5596,7 +5589,7 @@ struct NotesSection {
     assert(cntr >= previous_count);
     previous_count=cntr;
     assert(
-      match(contents_am[cntr].text,
+      (contents_am[cntr].text).match(
       rgx.inline_notes_delimiter_al_regular_number_note)
     );
   }
@@ -5606,8 +5599,7 @@ struct NotesSection {
     auto munge = ObjInlineMarkupMunge();
     foreach(
       m;
-      matchAll(
-        contents_am[cntr].text,
+      (contents_am[cntr].text).matchAll(
         rgx.inline_notes_delimiter_al_regular_number_note
       )
     ) {
@@ -5650,8 +5642,8 @@ struct NotesSection {
   body {
     string[][string] endnotes_;
     if (object_notes.length > 1) {
-      endnotes_["notes"] = (split(object_notes["notes"], rgx.break_string))[0..$-1];
-      endnotes_["anchor"] = (split(object_notes["anchor"], rgx.break_string))[0..$-1];
+      endnotes_["notes"] = (object_notes["notes"].split(rgx.break_string))[0..$-1];
+      endnotes_["anchor"] = (object_notes["anchor"].split(rgx.break_string))[0..$-1];
     } else {
       endnotes_["notes"] = [];
       endnotes_["anchor"] = [];
@@ -5740,8 +5732,8 @@ struct NotesSection {
       comp_obj_endnote_.indent_base           = 0;
       comp_obj_endnote_.bullet                = false;
       foreach (i, endnote; endnotes_["notes"]) {
-        auto     m                            = (matchFirst(endnote, rgx.note_ref));
-        string   notenumber                   = to!string(m.captures[1]);
+        auto     m                            = endnote.matchFirst(rgx.note_ref);
+        string   notenumber                   = m.captures[1].to!string;
         string   anchor_tag                   = "note_" ~ notenumber;
         comp_obj_endnote_.anchor_tags         = [ endnotes_["anchor"][i] ];
         comp_obj_endnote_.inline_links        = true;
@@ -5930,12 +5922,12 @@ struct NodeStructureMetadata {
       static assert(is(typeof(is_)                == string));
     }
     assert(is_ != "heading");
-    assert(to!int(obj_cite_number_) >= 0);
+    assert(obj_cite_number_.to!int >= 0);
   }
   body {
     assert(is_ != "heading"); // should not be necessary
-    assert(to!int(obj_cite_number_) >= 0); // should not be necessary
-    int obj_cite_number=to!int(obj_cite_number_);
+    assert(obj_cite_number_.to!int >= 0); // should not be necessary
+    int obj_cite_number = obj_cite_number_.to!int;
     if (lv7 > State.off) {
       p_["lev_markup_number"] = DocStructMarkupHeading.h_text_4;
       p_["obj_cite_number"] = lv7;
@@ -5953,14 +5945,14 @@ struct NodeStructureMetadata {
     comp_obj_location                       = comp_obj_location.init;
     comp_obj_location.is_a                  = is_;
     comp_obj_location.ocn                   = obj_cite_number_;
-    comp_obj_location.segment_anchor_tag    = to!string(segment_anchor_tag);
+    comp_obj_location.segment_anchor_tag    = segment_anchor_tag.to!string;
     comp_obj_location.parent_ocn            = p_["obj_cite_number"];
     comp_obj_location.parent_lev_markup     = p_["lev_markup_number"];
     debug(node) {
-      if (match(lev_markup_number, rgx.levels_numbered_headings)) {
-        writeln("x ", to!string(_node));
+      if (lev_markup_number.match(rgx.levels_numbered_headings)) {
+        writeln("x ", _node.to!string);
       } else {
-        writeln("- ", to!string(_node));
+        writeln("- ", _node.to!string);
       }
     }
     assert(comp_obj_location.parent_lev_markup >= 4);
@@ -6009,18 +6001,18 @@ struct NodeStructureMetadata {
     assert(is_ == "heading");
     assert(to!int(obj_cite_number_) >= 0);
     assert(
-      match(lev_markup_number, rgx.levels_numbered),
-      ("not a valid heading level: " ~ lev_markup_number ~ " at " ~ to!string(obj_cite_number_))
+      lev_markup_number.match(rgx.levels_numbered),
+      ("not a valid heading level: " ~ lev_markup_number ~ " at " ~ obj_cite_number_.to!string)
     );
-    if (match(lev_markup_number, rgx.levels_numbered)) {
-      if (to!int(lev_markup_number) == 0) {
-        assert(to!int(obj_cite_number_) == 1);
+    if (lev_markup_number.match(rgx.levels_numbered)) {
+      if (lev_markup_number.to!int == 0) {
+        assert(obj_cite_number_.to!int == 1);
       }
     }
   }
   body {
-    int obj_cite_number = to!int(obj_cite_number_);
-    switch (to!int(lev_markup_number)) {
+    int obj_cite_number = obj_cite_number_.to!int;
+    switch (lev_markup_number.to!int) {
     case 0:
       lv = DocStructMarkupHeading.h_sect_A;
       lv0 = obj_cite_number;
@@ -6105,13 +6097,13 @@ struct NodeStructureMetadata {
     _comp_obj_heading_.use                       = "body";
     _comp_obj_heading_.is_of                     = "para";
     _comp_obj_heading_.is_a                      = "heading";
-    _comp_obj_heading_.text                      = to!string(_text).strip;
+    _comp_obj_heading_.text                      = _text.to!string.strip;
     _comp_obj_heading_.ocn                       = obj_cite_number_;
-    _comp_obj_heading_.obj_cite_number           = (obj_cite_number==0) ? "" : to!string(obj_cite_number);
-    _comp_obj_heading_.segment_anchor_tag        = to!string(segment_anchor_tag);
+    _comp_obj_heading_.obj_cite_number           = (obj_cite_number==0) ? "" : obj_cite_number.to!string;
+    _comp_obj_heading_.segment_anchor_tag        = segment_anchor_tag.to!string;
     _comp_obj_heading_.marked_up_level           = lev;
-    _comp_obj_heading_.heading_lev_markup        = (!(lev_markup_number.empty) ? to!int(lev_markup_number) : 0);
-    _comp_obj_heading_.heading_lev_collapsed     = (!(lev_collapsed_number.empty) ? to!int(lev_collapsed_number) : 0);
+    _comp_obj_heading_.heading_lev_markup        = (!(lev_markup_number.empty) ? lev_markup_number.to!int : 0);
+    _comp_obj_heading_.heading_lev_collapsed     = (!(lev_collapsed_number.empty) ? lev_collapsed_number.to!int : 0);
     _comp_obj_heading_.parent_ocn                = p_["obj_cite_number"];
     _comp_obj_heading_.parent_lev_markup         = p_["lev_markup_number"];
     _comp_obj_heading_.heading_ancestors_text    = lv_ancestors;
@@ -6122,18 +6114,18 @@ struct NodeStructureMetadata {
     _comp_obj_heading_.inline_notes_star         = flag_notes_star;
     _comp_obj_heading_.inline_links              = flag_links;
     debug(node) {
-      if (match(lev_markup_number, rgx.levels_numbered_headings)) {
-        writeln("* ", to!string(_node));
+      if (lev_markup_number.match(rgx.levels_numbered_headings)) {
+        writeln("* ", _node.to!string);
       }
     }
     debug(nodeheading) {
-      if (match(lev_markup_number, rgx.levels_numbered_headings)) {
-        writeln("* ", to!string(_node));
+      if (lev_markup_number.match(rgx.levels_numbered_headings)) {
+        writeln("* ", _node.to!string);
       }
     }
     assert(_comp_obj_heading_.parent_lev_markup <= 7);
     assert(_comp_obj_heading_.parent_ocn >= 0);
-    if (match(lev_markup_number, rgx.levels_numbered_headings)) {
+    if (lev_markup_number.match(rgx.levels_numbered_headings)) {
       assert(_comp_obj_heading_.heading_lev_markup <= 7);
       assert(_comp_obj_heading_.ocn >= 0);
       if (_comp_obj_heading_.parent_lev_markup > 0) {
@@ -6263,7 +6255,7 @@ auto assertions_doc_structure(O,Lv)(
   }
   if (lv["h7"] == State.off) {
   }
-  switch (to!string(an_object["lev"])) {
+  switch ((an_object["lev"]).to!string) {
   case "A":
     if (lv["h0"] == State.off) {
       assert(lv["h1"] == State.off);