From 2cdc5d2a7c62e54009e915d6f6a9da87905e2699 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph.amissah@gmail.com>
Date: Sun, 29 Aug 2021 19:06:01 -0400
Subject: xmls, epub3 toc_nav.xhtml toc.ncx

---
 src/doc_reform/io_out/epub3.d        | 297 ++++++++++++++++++++---------------
 src/doc_reform/io_out/html.d         |  56 +++----
 src/doc_reform/io_out/paths_output.d |   2 +-
 src/doc_reform/io_out/xmls.d         |  76 ++++-----
 4 files changed, 237 insertions(+), 194 deletions(-)

(limited to 'src/doc_reform/io_out')

diff --git a/src/doc_reform/io_out/epub3.d b/src/doc_reform/io_out/epub3.d
index 1a8d924..b38fe3e 100644
--- a/src/doc_reform/io_out/epub3.d
+++ b/src/doc_reform/io_out/epub3.d
@@ -63,6 +63,16 @@ template outputEPub3() {
     doc_reform.io_out.xmls_css;
   mixin InternalMarkup;
   mixin outputXHTMLs;
+  static auto rgx = RgxO();
+  @safe string special_characters_text(string _txt) {
+    _txt = _txt
+      .replaceAll(rgx.xhtml_ampersand,    "&amp;")  // "&#38;"
+      .replaceAll(rgx.xhtml_quotation,    "&quot;") // "&#34;"
+      .replaceAll(rgx.xhtml_less_than,    "&lt;")   // "&#60;"
+      .replaceAll(rgx.xhtml_greater_than, "&gt;")   // "&#62;"
+      .replaceAll(rgx.nbsp_char,          " ");
+    return _txt;
+  }
   @safe string epub3_mimetypes() {
     string o;
     o = format(q"┃application/epub+zip┃") ~ "\n";
@@ -70,7 +80,7 @@ template outputEPub3() {
   }
   @safe string epub3_container_xml() {
     string o;
-    o = format(q"┃<?xml version="1.0" encoding="UTF-8"?>┃") ~ "\n";
+    o = format(q"┃<?xml version="1.0" encoding="utf-8"?>┃") ~ "\n";
     o ~= format(q"┃<container version="1.0"
   xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
   <rootfiles>
@@ -83,14 +93,13 @@ template outputEPub3() {
     auto xhtml_format = outputXHTMLs();
     auto pth_epub3 = spinePathsEPUB!()(doc_matters.output_path, doc_matters.src.language);
     string _uuid = "18275d951861c77f78acd05672c9906924c59f18a2e0ba06dad95959693e9bd8"; // TODO sort uuid in doc_matters!
-    string content = format(q"┃  <?xml version="1.0" encoding="UTF-8"?>
-  <package version="2.0" xmlns="http://www.idpf.org/2007/opf" unique-identifier="EPB-UUID">
+    string content = format(q"┃<?xml version="1.0" encoding="utf-8"?>
+  <package version="3.0" xmlns="http://www.idpf.org/2007/opf" unique-identifier="uid" prefix="rendition: http://www.idpf.org/vocab/rendition/#">
     <metadata
       xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
       xmlns:dcterms="https://purl.org/dc/terms/"
       xmlns:dc="https://purl.org/dc/elements/1.1/"
       unique-identifier="urn:uuid:%s" version="2.0">
-      <!-- <dc:title id="title">%s</dc:title> -->
       <dc:title id="title">%s</dc:title>
       <meta refines="#title" property="title-type">main</meta>
       <dc:title id="subtitle">%s</dc:title>
@@ -101,18 +110,13 @@ template outputEPub3() {
       <dc:rights>Copyright: %s</dc:rights>
       <dc:identifier scheme="URI">%s</dc:identifier>
       <dc:identifier id="bookid">urn:uuid:%s</dc:identifier>
-      <!-- <dc:identifier id="EPB-UUID">urn:uuid:%s</dc:identifier> -->
     </metadata>
     <manifest>
-      <!-- NCX epub2 navigation -->
-        <item id="ncx" href="toc.ncx" media-type="application/x-dtbncx+xml" />
-      <!-- CSS Style Sheets -->
-        <link rel="stylesheet" href="%s" type="text/css" id="main-css" />
-      <!-- nav epub3 navigation -->
-        <item id="nav" href="toc_nav.xhtml" media-type="application/xhtml+xml" properties="nav" />
+      <item id="ncx" href="toc.ncx" media-type="application/x-dtbncx+xml" />
+      <link rel="stylesheet" href="%s" type="text/css" id="main-css" />
+      <item id="nav" href="toc_nav.xhtml" media-type="application/xhtml+xml" properties="nav" />
   ┃",
       _uuid,
-      xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.title_full),
       xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.title_main),
       (doc_matters.conf_make_meta.meta.title_sub.empty)
         ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.title_sub),
@@ -127,13 +131,10 @@ template outputEPub3() {
         ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
       _uuid,
       _uuid,
-      _uuid,
       (pth_epub3.fn_oebps_css).chompPrefix("OEBPS/"),
     );
-    content ~= "    " ~ "<!-- Content Documents -->" ~ "\n  ";
     content ~= parts["manifest_documents"];
     // TODO sort jpg & png
-    content ~= "    " ~ "<!-- Images -->" ~ "\n  ";
     foreach (image; doc_matters.srcs.image_list) {
       content ~= format(q"┃      <item id="%s" href="%s/%s" media-type="image/%s" />
   ┃",
@@ -181,88 +182,111 @@ template outputEPub3() {
     enum DomTags { none, open, close, close_and_open, open_still, }
     auto markup = InlineMarkup();
     static auto rgx = RgxO();
-    string toc =format("<html xmlns=\"https://www.w3.org/1999/xhtml\"
-      xmlns:epub=\"http://www.idpf.org/2007/ops\">
+    string toc;
+    string toc_head = format(q"┃<html xmlns="https://www.w3.org/1999/xhtml"
+      xmlns:epub="http://www.idpf.org/2007/ops">
   <head>
     <title>%s</title>
   </head>
   <body>
-    <section epub:type=\"frontmatter toc\">
-      <header>
-        <h1>Contents</h1>
-      </header>
-      <nav epub:type=\"toc\" id=\"toc\">\n",
-      doc_matters.conf_make_meta.meta.title_full,
-    );
+  <section epub:type="frontmatter toc">
+    <header>
+      <h1>Contents</h1>
+    </header>
+    <nav epub:type="toc" id="toc">
+    <ol>
+      <li>┃",
+            (doc_matters.conf_make_meta.meta.title_full).special_characters_text,
+          );
+    string _toc_nav_tail = "";
+    // writeln(doc_matters.has.keys_seq.seg); // DEBUG line
     foreach (sect; doc_matters.has.keys_seq.seg) {
       foreach (obj; doc_abstraction[sect]) {
-        if (obj.metainfo.is_a == "heading") {
+        if ((sect == "head") && (obj.metainfo.is_a == "heading")) {
+          toc = format(q"┃%s
+        <a href="_the_title.xhtml">%s</a>
+      </li>
+  ┃",
+            toc_head,
+            obj.text.replaceAll(rgx.inline_notes_al_gen, "").strip,
+          );
+        } else if (sect == "tail") { // skip
+        } else if ((sect != "tail") && (obj.metainfo.is_a == "heading")) {
           string _txt = obj.text.replaceAll(rgx.inline_notes_al_gen, "").strip;
           foreach_reverse (n; 0 .. 7) {
             string k = n.to!string;
             switch (obj.metainfo.dom_structure_collapsed_tags_status[n]) {
+            case DomTags.none :
+              break;
             case DomTags.close :
-              toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "</li>" ~ "\n";
-              toc ~= markup.indent_by_spaces_provided(n, "  ") ~ "</ol>" ~ "\n";
+              toc ~= markup.indent_by_spaces_provided((n + 1), "    ") ~ "</li>" ~ "\n";
+              toc ~= markup.indent_by_spaces_provided(n, "    ") ~ "</ol>" ~ "\n";
               break;
             case DomTags.close_and_open :
-              toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "</li>" ~ "\n";
-              if  (obj.metainfo.heading_lev_markup < 4) {
-                toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
-                ~ markup.indent_by_spaces_provided((n + 2), "  ")
-                ~ "<a href=\"" ~ obj.tags.segment_anchor_tag_epub ~ ".xhtml" ~ "\">"
-                ~ _txt
-                ~ "</a>" ~ "\n";
-              } else {
-                string hashtag =(obj.metainfo.heading_lev_markup == 4)
-                ? ""
-                : ("#" ~ obj.metainfo.ocn.to!string);
-                toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
-                ~ markup.indent_by_spaces_provided((n + 2), "  ")
-                ~ "<a href=\"" ~ obj.tags.segment_anchor_tag_epub ~ ".xhtml" ~ hashtag ~ "\">"
-                ~ _txt
-                ~ "</a>" ~ "\n";
-              }
-              break;
+              toc ~= markup.indent_by_spaces_provided((n + 1), "    ") ~ "</li>" ~ "\n";
+              goto default;
             case DomTags.open :
-              toc ~= markup.indent_by_spaces_provided(n, "  ") ~ "<ol>" ~ "\n";
-              if  (obj.metainfo.heading_lev_markup < 4) {
-                toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
-                ~ markup.indent_by_spaces_provided((n + 2), "  ")
-                ~ "<a href=\"" ~ obj.tags.segment_anchor_tag_epub ~ ".xhtml" ~ "\">"
-                ~ _txt
-                ~ "</a>" ~ "\n";
-              } else {
-                string hashtag =(obj.metainfo.heading_lev_markup == 4)
-                ? ""
-                : ("#" ~ obj.metainfo.ocn.to!string);
-                toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
-                ~ markup.indent_by_spaces_provided((n + 2), "  ")
-                ~ "<a href=\"" ~ obj.tags.segment_anchor_tag_epub ~ ".xhtml" ~ hashtag ~ "\">"
-                ~ _txt
-                ~ "</a>" ~ "\n";
-              }
-              break;
+              toc ~= markup.indent_by_spaces_provided(n, "    ") ~ "<ol>" ~ "\n";
+              goto default;
             default :
+              if ((obj.metainfo.dom_structure_collapsed_tags_status[n] == DomTags.close_and_open ||
+                   obj.metainfo.dom_structure_collapsed_tags_status[n] == DomTags.open
+              )) {
+                string _hashtag = "";
+                if ((obj.metainfo.heading_lev_markup <= 4) && (obj.metainfo.ocn == 0)) {
+                  _hashtag = "#" ~ obj.metainfo.ocn.to!string;
+                }
+                string _href = "<a href=\""
+                  ~ obj.tags.segment_anchor_tag_epub ~ ".xhtml"
+                  ~ _hashtag
+                  ~ "\">";
+                toc ~= markup.indent_by_spaces_provided((n + 1), "    ") ~ "<li>" ~ "\n"
+                ~ markup.indent_by_spaces_provided((n + 2), "    ")
+                ~ _href ~ _txt.special_characters_text ~ "</a>" ~ "\n";
+              }
               break;
             }
+            if (doc_matters.has.keys_seq.seg[doc_matters.has.keys_seq.seg.length - 2] == sect) {
+              // writeln(n, ": ", sect, ": ", _txt, " - ", obj.metainfo.dom_structure_collapsed_tags_status); // DEBUG
+              // read last heading (heading prior to closing) and determine what those instructions imply still need to be done
+              // CLOSE // DomTags { 0 none, 1 open, 2 close, 3 close_and_open, 4 open_still, }
+              if (n == 6) {_toc_nav_tail = "";}
+              switch (obj.metainfo.dom_structure_collapsed_tags_status[n]) {
+              case 0: case 2:
+              // case DomTags.none: case DomTags.close:
+                break;
+              case 1: case 3: case 4:
+              // case DomTags.open: case DomTags.close_and_open: case DomTags.open_still:
+                if (n != 0) {
+                  _toc_nav_tail ~= "   " ~ markup.indent_by_spaces_provided((n + 1), "  ") ~ "</li>" ~ "\n";
+                }
+                _toc_nav_tail ~= "   " ~ markup.indent_by_spaces_provided(n, "  ") ~ "</ol>" ~ "\n";
+                break;
+              default :
+                break;
+              }
+              if (n == 0) {
+                _toc_nav_tail ~="</nav>
+  </section>
+  </body>
+  </html>\n";
+              }
+            }
           }
         }
       }
     }
-    toc ~="</nav>
-      </section>
-    </body>
-  </html>\n";
+    toc ~= _toc_nav_tail;
     return toc;
   }
   @safe string epub2_oebps_toc_ncx(D,I)(D doc_abstraction, I doc_matters) {
-    int counter = 0;
+    int counter_play_order = 0;
     string _uuid = "18275d951861c77f78acd05672c9906924c59f18a2e0ba06dad95959693e9bd8"; // TODO shared elsewhere
     auto markup = InlineMarkup();
     static auto rgx = RgxO();
     enum DomTags { none, open, close, close_and_open, open_still, }
-    string toc = format(q"┃<?xml version="1.0" encoding="UTF-8"?>
+    string toc;
+    string toc_ = format(q"┃<?xml version="1.0" encoding="utf-8"?>
   <ncx xmlns="https://www.daisy.org/z3986/2005/ncx/" version="2005-1">
   <head>
     <!-- four required metadata items (for all NCX documents,
@@ -281,70 +305,89 @@ template outputEPub3() {
     <text>%s</text>
   </docAuthor>
   <navMap>┃",
-      doc_matters.conf_make_meta.meta.title_full,                          // title
+      (doc_matters.conf_make_meta.meta.title_full).special_characters_text,                          // title
       (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
-        : " by " ~ doc_matters.conf_make_meta.meta.creator_author,         // author
+        : " by " ~ (doc_matters.conf_make_meta.meta.creator_author).special_characters_text,         // author
       _uuid,                                                                // uuid
       "3",                                                                 // content depth
-      doc_matters.conf_make_meta.meta.title_full,                          // title
+      (doc_matters.conf_make_meta.meta.title_full).special_characters_text,                          // title
       (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
-        : doc_matters.conf_make_meta.meta.creator_author,                  // author
+        : (doc_matters.conf_make_meta.meta.creator_author).special_characters_text,                  // author
     );
+    string _toc_ncx_tail = "";
     foreach (sect; doc_matters.has.keys_seq.seg) {
       foreach (obj; doc_abstraction[sect]) {
+        if (sect == "head") { toc = toc_;
+        }
         if (obj.metainfo.is_a == "heading") {
-          string _txt = obj.text.replaceAll(rgx.inline_notes_al_gen, "").strip;
-          string hashtag =(obj.metainfo.heading_lev_markup <= 4) ? "" : ("#" ~ obj.metainfo.ocn.to!string);
+          string _txt = obj.text.replaceAll(rgx.inline_notes_al_gen, "").strip.special_characters_text;
+          // writeln(_txt, " --- ", obj.metainfo.dom_structure_collapsed_tags_status); // DEBUG line
+          string hashtag = (obj.metainfo.heading_lev_markup <= 4) ? "" : ("#" ~ obj.metainfo.ocn.to!string);
           foreach_reverse (k; 0 .. 7) {
-            switch (obj.metainfo.dom_structure_markedup_tags_status[k]) {
+            switch (obj.metainfo.dom_structure_collapsed_tags_status[k]) { // for epub may need to construct for levels 1 to 4 only
             case DomTags.close :
-              toc ~= "\n    </navPoint>";
+              if (sect != "head") {
+                toc ~= "\n    </navPoint>"; // issue at start of some documents
+              }
               break;
             case DomTags.close_and_open :
-              ++counter;
               toc ~= "\n    </navPoint>";
-              toc ~= format(q"┃
-    <navPoint class="chapter" id="navpoint" playOrder="%s">
-      <navLabel>
-        <text>%s</text>
-      </navLabel>
-      <content src="%s.xhtml%s" />┃",
-                counter,
-                _txt,
-                obj.tags.segment_anchor_tag_epub,
-                hashtag,
-              );
-              break;
+              goto default;
             case DomTags.open :
-              ++counter;
-              toc ~= format(q"┃
+              goto default;
+            default :
+              string _toc;
+              if ((obj.metainfo.dom_structure_collapsed_tags_status[k] == DomTags.open
+                || obj.metainfo.dom_structure_collapsed_tags_status[k] == DomTags.close_and_open
+                // || obj.metainfo.dom_structure_collapsed_tags_status[k] == DomTags.open_still
+              )) {
+                ++counter_play_order;
+                _toc = format(q"┃
     <navPoint class="chapter" id="navpoint" playOrder="%s">
       <navLabel>
         <text>%s</text>
       </navLabel>
       <content src="%s.xhtml%s" />┃",
-                counter,
-                _txt,
-                obj.tags.segment_anchor_tag_epub,
-                hashtag,
-              );
-              break;
-            default :
+                  counter_play_order,
+                  _txt,
+                  obj.tags.segment_anchor_tag_epub,
+                  hashtag,
+                );
+              }
+              if (obj.metainfo.dom_structure_collapsed_tags_status[k] == DomTags.close_and_open) {
+                toc ~= _toc;
+              } else if (obj.metainfo.dom_structure_collapsed_tags_status[k] == DomTags.open) {
+                toc ~= _toc;
+              }
               break;
             }
+            if (doc_matters.has.keys_seq.seg[doc_matters.has.keys_seq.seg.length - 2] == sect) {
+              if (k == 6) {_toc_ncx_tail = "";}
+              switch (obj.metainfo.dom_structure_collapsed_tags_status[k]) {
+              case 0: case 2:
+              // case DomTags.none: case DomTags.close:
+                break;
+              case 1: case 3: case 4:
+              // case DomTags.open: case DomTags.close_and_open: case DomTags.open_still:
+                if (k != 0) {
+                }
+                _toc_ncx_tail ~= "   " ~ markup.indent_by_spaces_provided(k, "  ") ~ "</navPoint>" ~ "\n";
+                break;
+              default :
+                break;
+              }
+              if (k == 0) {
+                _toc_ncx_tail ~= format(q"┃  </navMap>
+  </ncx>┃");
+              }
+            }
           }
         }
       }
     }
-    toc ~= format(q"┃
-      </navPoint>
-      </navPoint>
-      </navPoint>
-    </navMap>
-  </ncx>┃");
+    toc ~= _toc_ncx_tail;
     return toc;
   }
-  
   @system void outputEPub3(D,I)(
     const D    doc_abstraction,
           I    doc_matters,
@@ -400,7 +443,7 @@ template outputEPub3() {
             default:
               epubWrite.doc_parts ~= obj.tags.segment_anchor_tag_epub;
               epubWrite.doc_epub3[obj.tags.segment_anchor_tag_epub] ~= xhtml_format.epub3_seg_head(doc_matters);
-              auto t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
+              Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
               epubWrite.doc_epub3[obj.tags.segment_anchor_tag_epub] ~= t[0];
               epubWrite.doc_epub3_endnotes[obj.tags.segment_anchor_tag_epub] ~= t[1];
               break;
@@ -409,12 +452,12 @@ template outputEPub3() {
           case 4:
             segment_filename = obj.tags.segment_anchor_tag_epub;
             epubWrite.doc_epub3[segment_filename] ~= xhtml_format.epub3_seg_head(doc_matters);
-            auto t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
             epubWrite.doc_epub3[segment_filename] ~= t[0];
             epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
             break;
           case 5: .. case 7:
-            auto t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "epub");
             epubWrite.doc_epub3[segment_filename] ~= t[0];
             epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
             break;
@@ -438,13 +481,14 @@ template outputEPub3() {
           }
         } else {
           assert(part == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          Tuple!(string, string[]) t;
           switch (obj.metainfo.is_of_part) {
           case "frontmatter":             assert(part == "head" || "toc");
             switch (obj.metainfo.is_of_type) {
             case "para":
               switch (obj.metainfo.is_a) {
               case "toc":
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0];
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
@@ -473,7 +517,7 @@ template outputEPub3() {
             case "para":
               switch (obj.metainfo.is_a) {
               case "para":
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0];
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
@@ -490,24 +534,24 @@ template outputEPub3() {
             case "block":
               switch (obj.metainfo.is_a) {
               case "quote":
-                auto t = xhtml_format.quote_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.quote_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
               case "group":
-                auto t = xhtml_format.group_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.group_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
               case "block":
-                auto t = xhtml_format.block_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.block_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
               case "poem":
                 break;
               case "verse":
-                auto t = xhtml_format.verse_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.verse_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0].to!string;
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
@@ -544,26 +588,26 @@ template outputEPub3() {
             case "para":
               switch (obj.metainfo.is_a) {
               case "endnote":             assert(part == "endnotes");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0];
                 break;
               case "glossary":            assert(part == "glossary");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0];
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
               case "bibliography":        assert(part == "bibliography");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0];
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
               case "bookindex":           assert(part == "bookindex");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0];
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
               case "blurb":               assert(part == "blurb");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "epub");
                 epubWrite.doc_epub3[segment_filename] ~= t[0];
                 epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1];
                 break;
@@ -604,25 +648,25 @@ template outputEPub3() {
           if (obj.metainfo.heading_lev_markup <= 4) {
             oepbs_content_parts["manifest_documents"] ~=
               format(q"┃      <item id="%s.xhtml" href="%s.xhtml" media-type="application/xhtml+xml" />
-  ┃",
+              ┃",
               obj.tags.segment_anchor_tag_epub,
               obj.tags.segment_anchor_tag_epub,
             );
             oepbs_content_parts["spine"] ~=
               format(q"┃    <itemref idref="%s.xhtml" linear="yes" />
-  ┃",
+              ┃",
               obj.tags.segment_anchor_tag_epub,
             );
             oepbs_content_parts["guide"] ~=
               format(q"┃      <reference type="%s" href="%s" />
-  ┃",
+              ┃",
               obj.tags.segment_anchor_tag_epub,
               obj.tags.segment_anchor_tag_epub,
             );
           } else if (obj.metainfo.heading_lev_markup > 4) {
             oepbs_content_parts["manifest_documents"] ~=
               format(q"┃      <item id="%s.xhtml#%s" href="%s.xhtml#%s" media-type="application/xhtml+xml" />
-  ┃",
+              ┃",
               obj.tags.segment_anchor_tag_epub,
               obj.metainfo.object_number,
               obj.tags.segment_anchor_tag_epub,
@@ -630,13 +674,13 @@ template outputEPub3() {
             );
             oepbs_content_parts["spine"] ~=
               format(q"┃    <itemref idref="%s.xhtml#%s" linear="yes" />
-  ┃",
+              ┃",
               obj.tags.segment_anchor_tag_epub,
               obj.metainfo.object_number,
             );
             oepbs_content_parts["guide"] ~=
               format(q"┃      <reference type="%s#%s" href="%s#%s" />
-  ┃",
+              ┃",
               obj.tags.segment_anchor_tag_epub,
               obj.metainfo.object_number,
               obj.tags.segment_anchor_tag_epub,
@@ -858,5 +902,4 @@ template outputEPub3() {
       }
     }
   }
-  
 }
diff --git a/src/doc_reform/io_out/html.d b/src/doc_reform/io_out/html.d
index ceaf9f9..5c55bd7 100644
--- a/src/doc_reform/io_out/html.d
+++ b/src/doc_reform/io_out/html.d
@@ -299,7 +299,7 @@ template outputHTML() {
               top_level_headings[3] = "";
               goto default;
             default:
-              auto t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
+              Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
               top_level_headings[obj.metainfo.heading_lev_markup] = t[0];
               break;
             }
@@ -313,13 +313,13 @@ template outputHTML() {
             foreach (top_level_heading; top_level_headings) {
               doc_html[segment_filename] ~= top_level_heading;
             }
-            auto t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
             doc_html[segment_filename] ~= t[0].to!string;
             doc_html[segment_filename] ~= xhtml_format.lev4_heading_subtoc(obj, doc_matters);
             doc_html_endnotes[segment_filename] ~= t[1];
             break;
           case 5: .. case 7:
-            auto t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
+            Tuple!(string, string[]) t = xhtml_format.heading_seg(_txt, obj, doc_matters, suffix, "seg");
             doc_html[segment_filename] ~= t[0].to!string;
             doc_html_endnotes[segment_filename] ~= t[1];
             break;
@@ -343,13 +343,14 @@ template outputHTML() {
           }
         } else {
           assert(part == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail");
+          Tuple!(string, string[]) t;
           switch (obj.metainfo.is_of_part) {
           case "frontmatter":             assert(part == "head" || "toc");
             switch (obj.metainfo.is_of_type) {
             case "para":
               switch (obj.metainfo.is_a) {
               case "toc":
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
                 doc_html[segment_filename] ~= t[0].to!string;
                 break;
               default:
@@ -377,7 +378,7 @@ template outputHTML() {
             case "para":
               switch (obj.metainfo.is_a) {
               case "para":
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
                 doc_html[segment_filename] ~= t[0].to!string;
                 doc_html_endnotes[segment_filename] ~= t[1];
                 break;
@@ -394,27 +395,19 @@ template outputHTML() {
             case "block":
               switch (obj.metainfo.is_a) {
               case "quote":
-                auto t = xhtml_format.quote_seg(_txt, obj, doc_matters, suffix, "seg");
-                doc_html[segment_filename] ~= t[0].to!string;
-                doc_html_endnotes[segment_filename] ~= t[1];
-                break;
+                t = xhtml_format.quote_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
               case "group":
-                auto t = xhtml_format.group_seg(_txt, obj, doc_matters, suffix, "seg");
-                doc_html[segment_filename] ~= t[0].to!string;
-                doc_html_endnotes[segment_filename] ~= t[1];
-                break;
+                t = xhtml_format.group_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
               case "block":
-                auto t = xhtml_format.block_seg(_txt, obj, doc_matters, suffix, "seg");
-                doc_html[segment_filename] ~= t[0].to!string;
-                doc_html_endnotes[segment_filename] ~= t[1];
-                break;
+                t = xhtml_format.block_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
               case "poem":
                 break;
               case "verse":
-                auto t = xhtml_format.verse_seg(_txt, obj, doc_matters, suffix, "seg");
-                doc_html[segment_filename] ~= t[0].to!string;
-                doc_html_endnotes[segment_filename] ~= t[1];
-                break;
+                t = xhtml_format.verse_seg(_txt, obj, doc_matters, suffix, "seg");
+                goto default;
               case "code":
                 doc_html[segment_filename] ~= xhtml_format.code(_txt, obj, doc_matters);
                 break;
@@ -423,7 +416,14 @@ template outputHTML() {
                 doc_html_endnotes[segment_filename] ~= "";
                 break;
               default:
-                { /+ debug +/
+                if ((obj.metainfo.is_a == "quote"
+                  || obj.metainfo.is_a == "group"
+                  || obj.metainfo.is_a == "block"
+                  || obj.metainfo.is_a == "verse"
+                )) {
+                  doc_html[segment_filename] ~= t[0].to!string;
+                  doc_html_endnotes[segment_filename] ~= t[1];
+                } else { /+ debug +/
                   if (doc_matters.opt.action.debug_do
                   && doc_matters.opt.action.verbose) {
                     writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a);
@@ -448,26 +448,26 @@ template outputHTML() {
             case "para":
               switch (obj.metainfo.is_a) {
               case "endnote":             assert(part == "endnotes");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
                 doc_html[segment_filename] ~= t[0];
                 break;
               case "glossary":            assert(part == "glossary");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
                 doc_html[segment_filename] ~= t[0];
                 doc_html_endnotes[segment_filename] ~= t[1];
                 break;
               case "bibliography":        assert(part == "bibliography");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
                 doc_html[segment_filename] ~= t[0];
                 doc_html_endnotes[segment_filename] ~= t[1];
                 break;
               case "bookindex":           assert(part == "bookindex");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
                 doc_html[segment_filename] ~= t[0];
                 doc_html_endnotes[segment_filename] ~= t[1];
                 break;
               case "blurb":               assert(part == "blurb");
-                auto t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
+                t = xhtml_format.para_seg(_txt, obj, doc_matters, suffix, "seg");
                 doc_html[segment_filename] ~= t[0];
                 doc_html_endnotes[segment_filename] ~= t[1];
                 break;
@@ -560,7 +560,7 @@ template outputHTML() {
     M    doc_matters,
   ) {
     { /+ (copy html images) +/
-  
+
       auto pth_html = spinePathsHTML!()(doc_matters.output_path, doc_matters.src.language);
       if (!exists(pth_html.image)) {
         pth_html.image.mkdirRecurse;
diff --git a/src/doc_reform/io_out/paths_output.d b/src/doc_reform/io_out/paths_output.d
index 96ef12d..86f418a 100644
--- a/src/doc_reform/io_out/paths_output.d
+++ b/src/doc_reform/io_out/paths_output.d
@@ -445,7 +445,7 @@ template spinePathsEPUB() {
         return dbg_docdir(fn_src).chainPath("OEBPS").array;
       }
       string dbg_doc_oebps_css(string fn_src) {
-        return dbg_doc_oebps(fn_src).chainPath("css").array;
+        return dbg_doc_oebps(fn_src).chainPath("Styles").array;
       }
       string dbg_doc_oebps_image(string fn_src) {
         return dbg_doc_oebps(fn_src).chainPath("image").array;
diff --git a/src/doc_reform/io_out/xmls.d b/src/doc_reform/io_out/xmls.d
index 703df3d..ab80a09 100644
--- a/src/doc_reform/io_out/xmls.d
+++ b/src/doc_reform/io_out/xmls.d
@@ -95,10 +95,10 @@ template outputXHTMLs() {
     }
     @safe string special_characters_text(string _txt) {
       _txt = _txt
-        .replaceAll(rgx.xhtml_ampersand,    "&#38;")
-        .replaceAll(rgx.xhtml_quotation,    "&#34;")
-        .replaceAll(rgx.xhtml_less_than,    "&#60;")
-        .replaceAll(rgx.xhtml_greater_than, "&#62;")
+        .replaceAll(rgx.xhtml_ampersand,    "&amp;")  // "&#38;"
+        .replaceAll(rgx.xhtml_quotation,    "&quot;") // "&#34;"
+        .replaceAll(rgx.xhtml_less_than,    "&lt;")   // "&#60;"
+        .replaceAll(rgx.xhtml_greater_than, "&gt;")   // "&#62;"
         .replaceAll(rgx.nbsp_char,          " ");
       return _txt;
     }
@@ -131,7 +131,7 @@ template outputXHTMLs() {
       if (obj.tags.anchor_tags.length > 0) {
         foreach (tag; obj.tags.anchor_tags) {
           if (!(tag.empty)) {
-            tags ~= "<a name=\"" ~ tag ~ "\"></a>";
+            tags ~= "<a name=\"" ~ special_characters_text(tag) ~ "\"></a>";
           }
         }
       }
@@ -158,19 +158,19 @@ template outputXHTMLs() {
     <meta name="generator" content="%s" />
     <link rel="generator" href="%s" />
     <!-- spine DocReform header metadata -->┃",
-        doc_matters.conf_make_meta.meta.title_full.replaceAll(regex("\""),    "&quot;"),
-        doc_matters.conf_make_meta.meta.creator_author,
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
+        special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
         _publisher,
-        doc_matters.conf_make_meta.meta.date_published,
-        doc_matters.conf_make_meta.meta.date_created,
-        doc_matters.conf_make_meta.meta.date_issued,
-        doc_matters.conf_make_meta.meta.date_available,
-        doc_matters.conf_make_meta.meta.date_valid,
-        doc_matters.conf_make_meta.meta.date_modified,
+        special_characters_text(doc_matters.conf_make_meta.meta.date_published),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_created),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_issued),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_available),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_valid),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_modified),
         doc_matters.src.language,
-        doc_matters.conf_make_meta.meta.rights_copyright,
-        doc_matters.opt.action.debug_do ? "" : doc_matters.generator_program.name_and_version,
-        doc_matters.generator_program.url_home,
+        special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
+        doc_matters.opt.action.debug_do ? "" : special_characters_text(doc_matters.generator_program.name_and_version),
+        special_characters_text(doc_matters.generator_program.url_home),
       );
       return o;
     }
@@ -266,9 +266,9 @@ template outputXHTMLs() {
         <div class="flex-menu-option">
           %s
         </div>%s%s┃",
-        doc_matters.conf_make_meta.meta.title_full,
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
         (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
-          : ", " ~ doc_matters.conf_make_meta.meta.creator_author,
+          : ", " ~ special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
         header_metadata(doc_matters),
         ((type == "seg") ? "../" : ""),
         ((type == "seg")
@@ -330,22 +330,22 @@ template outputXHTMLs() {
     <body lang="%s">
     <a name="top" id="top"></a>┃",
         html_simple,
-        doc_matters.conf_make_meta.meta.title_full.replaceAll(regex("\""),    "&quot;"),
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
         (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
-          : ", " ~ doc_matters.conf_make_meta.meta.creator_author,
-        doc_matters.conf_make_meta.meta.title_full,
+          : ", " ~ special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+        special_characters_text(doc_matters.conf_make_meta.meta.title_full),
         (doc_matters.conf_make_meta.meta.creator_author.empty) ? ""
-          : ", " ~ doc_matters.conf_make_meta.meta.creator_author,
-        doc_matters.conf_make_meta.meta.date_published,
-        doc_matters.conf_make_meta.meta.date_created,
-        doc_matters.conf_make_meta.meta.date_issued,
-        doc_matters.conf_make_meta.meta.date_available,
-        doc_matters.conf_make_meta.meta.date_valid,
-        doc_matters.conf_make_meta.meta.date_modified,
+          : ", " ~ special_characters_text(doc_matters.conf_make_meta.meta.creator_author),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_published),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_created),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_issued),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_available),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_valid),
+        special_characters_text(doc_matters.conf_make_meta.meta.date_modified),
         doc_matters.src.language,
-        doc_matters.conf_make_meta.meta.rights_copyright,
-        doc_matters.generator_program.name_and_version,
-        doc_matters.generator_program.url_home,
+        special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright),
+        special_characters_text(doc_matters.generator_program.name_and_version),
+        special_characters_text(doc_matters.generator_program.url_home),
         doc_matters.src.language,
       );
       return o;
@@ -587,7 +587,7 @@ template outputXHTMLs() {
       }
       return _txt;
     }
-    @safe auto inline_markup_seg(O,M)(
+    @safe Tuple!(string, string[]) inline_markup_seg(O,M)(
       string          _txt,
       const        O  obj,
                    M  doc_matters,
@@ -792,7 +792,7 @@ template outputXHTMLs() {
       string          _suffix = ".html",
       string          _xml_type = "html",
     ) {
-      auto t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
       _txt = t[0];
       string[] _endnotes = t[1];
       string o = heading(_txt, obj, doc_matters, _xml_type);
@@ -872,7 +872,7 @@ template outputXHTMLs() {
       string          _suffix = ".html",
       string          _xml_type = "html",
     ) {
-      auto t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
       _txt = t[0].to!string;
       string[] _endnotes = t[1];
       string o = para(_txt, obj, doc_matters);
@@ -935,7 +935,7 @@ template outputXHTMLs() {
       string          _suffix = ".html",
       string          _xml_type = "html",
     ) {
-      auto t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
       _txt = t[0].to!string;
       string[] _endnotes = t[1];
       string o = quote(_txt, obj, doc_matters);
@@ -1001,7 +1001,7 @@ template outputXHTMLs() {
       string          _suffix = ".html",
       string          _xml_type = "html",
     ) {
-      auto t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
       _txt = t[0].to!string;
       string[] _endnotes = t[1];
       string o = group(_txt, obj, doc_matters);
@@ -1063,7 +1063,7 @@ template outputXHTMLs() {
       string          _suffix = ".html",
       string          _xml_type = "html",
     ) {
-      auto t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
       _txt = t[0].to!string;
       string[] _endnotes = t[1];
       string o = block(_txt, obj, doc_matters);
@@ -1123,7 +1123,7 @@ template outputXHTMLs() {
       string          _suffix = ".html",
       string          _xml_type = "html",
     ) {
-      auto t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
+      Tuple!(string, string[]) t = inline_markup_seg(_txt, obj, doc_matters, _suffix, _xml_type);
       _txt = t[0].to!string;
       string[] _endnotes = t[1];
       string o = verse(_txt, obj, doc_matters);
-- 
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