xmls, epub3 toc_nav.xhtml toc.ncx

1 files changed, 170 insertions, 127 deletions

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,    "&")  // "&"
+      .replaceAll(rgx.xhtml_quotation,    """) // """
+      .replaceAll(rgx.xhtml_less_than,    "<")   // "<"
+      .replaceAll(rgx.xhtml_greater_than, ">")   // ">"
+      .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() {
       }
     }
   }
-  
 }