0.13.9 sisupod & epub3, zipped output

1 files changed, 717 insertions, 0 deletions

diff --git a/src/sdp/output_epub3.d b/src/sdp/output_epub3.d
new file mode 100644
index 0000000..f0ac2c3
--- /dev/null
+++ b/src/sdp/output_epub3.d
@@ -0,0 +1,717 @@
+template outputEPub3() {
+  private import
+    std.algorithm,
+    std.array,
+    std.container,
+    std.digest.sha,
+    std.exception,
+    std.file,
+    std.getopt,
+    std.json,
+    std.outbuffer,
+    std.path,
+    std.process,
+    std.range,
+    std.regex,
+    std.stdio,
+    std.string,
+    std.traits,
+    std.typecons,
+    std.uni,
+    std.utf,
+    std.zip,
+    std.conv : to;
+  import
+    create_zip_file,
+    defaults,
+    output_rgx,
+    output_xhtmls;
+  mixin InternalMarkup;
+  mixin outputXHTMLs;
+  string epub3_mimetypes() {
+    string o;
+    o = format(q"¶application/epub+zip¶") ~ "\n";
+    return o;
+  }
+  string epub3_container_xml() {
+    string o;
+    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>
+    <rootfile full-path="OEBPS/content.opf"
+      media-type="application/oebps-package+xml" />
+  </rootfiles>¶") ~ "\n</container>\n";
+    return o;
+  }
+  string epub3_oebps_content(D,I,P)(D doc_abstraction, I doc_matters, P parts) {
+    string uuid = "18275d951861c77f78acd05672c9906924c59f18a2e0ba06dad95959693e9bd8"; // TODO sort uuid in doc_matters!
+    string content = format(q"¶  <?xml version='1.0' encoding='utf-8'?>
+  <package xmlns="http://www.idpf.org/2007/opf" version="2.0" unique-identifier="EPB-UUID">
+    <metadata
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xmlns:dcterms="http://purl.org/dc/terms/"
+      xmlns:dc="http://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>
+      <meta refines="#subtitle" property="title-type">subtitle</meta>
+      <dc:creator file-as="%s" id="aut">%s</dc:creator>
+      <dc:language>%s</dc:language>
+      <dc:date id="published">%s</dc:date>
+      <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 -->
+        <item id="main-css" href="css/xhtml.css" media-type="text/css" />
+      <!-- nav epub3 navigation -->
+        <item id="nav" href="toc_nav.xhtml" media-type="application/xhtml+xml" properties="nav" />
+  ¶",
+      uuid,
+      doc_matters.dochead_meta["title"]["full"],
+      doc_matters.dochead_meta["title"]["main"],
+      (doc_matters.dochead_meta["title"]["sub"].empty)
+        ? "" : doc_matters.dochead_meta["title"]["sub"],
+      (doc_matters.dochead_meta["creator"]["author"].empty)
+        ? "" : doc_matters.dochead_meta["creator"]["author"],
+      (doc_matters.dochead_meta["creator"]["author"].empty)
+        ? "" : doc_matters.dochead_meta["creator"]["author"],
+      doc_matters.language,
+      (doc_matters.dochead_meta["date"]["published"].empty)
+        ? "" : doc_matters.dochead_meta["date"]["published"],
+      (doc_matters.dochead_meta["rights"]["copyright"].empty)
+        ? "" : doc_matters.dochead_meta["rights"]["copyright"],
+      uuid,
+      uuid,
+      uuid,
+    );
+    content ~= "    " ~ "<!-- Content Documents -->" ~ "\n  ";
+    content ~= parts["manifest_documents"];
+    // TODO sort jpg & png
+    content ~= "    " ~ "<!-- Images -->" ~ "\n  ";
+    foreach (image; doc_matters.image_list) {
+      content ~= format(q"¶      <item id="%s" href="image/%s" media-type="image/png" />
+  ¶",
+        image,                        // strip image type, remove .png .jpg suffix, use in media-type="image/"
+        image,
+      );
+    }
+    content ~= "  " ~ "</manifest>"         ~ "\n  ";
+    content ~= "  " ~ "<spine toc=\"ncx\">" ~ "\n  ";
+    content ~= parts["spine"];
+    content ~= "  " ~ "</spine>"            ~ "\n  ";
+    content ~= "  " ~ "<guide>"             ~ "\n  ";
+    content ~= parts["guide"];
+    content ~= "  " ~ "</guide>"            ~ "\n  ";
+    content ~= ""   ~ "</package>";
+    return content;
+  }
+  string epub3_oebps_toc_nav_xhtml(D,I)(D doc_abstraction, I doc_matters) {
+    enum DomTags { none, open, close, close_and_open, open_still, }
+    auto markup = InlineMarkup();
+    string toc ="<nav epub:type=\"toc\" id=\"toc\">\n";
+    foreach (sect; doc_matters.keys_seq_seg) {
+      foreach (obj; doc_abstraction[sect]) {
+        if (obj.is_a == "heading") {
+          foreach_reverse (n; 0 .. 7) {
+            string k = n.to!string;
+            switch (obj.dom_collapsed[n]) {
+            case DomTags.close :
+              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.dom_markedup[n] < 4) {
+                toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
+                ~ markup.indent_by_spaces_provided((n + 2), "  ")
+                ~ "<span class=\"navhd\">" ~ obj.text ~ "</span>" ~ "\n";
+              } else {
+                string hashtag =(obj.heading_lev_markup == 4)
+                ? ""
+                : ("#" ~ obj.ocn.to!string);
+                toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
+                ~ markup.indent_by_spaces_provided((n + 2), "  ")
+                ~ "<a href=\"" ~ obj.segment_anchor_tag ~ ".xhtml" ~ hashtag ~ "\">"
+                ~ obj.text
+                ~ "</a>" ~ "\n";
+              }
+              break;
+            case DomTags.open :
+              toc ~= markup.indent_by_spaces_provided(n, "  ") ~ "<ol>" ~ "\n";
+              if  (obj.dom_markedup[n] < 4) {
+                toc ~= markup.indent_by_spaces_provided(n, "  ")
+                ~ "<li><span class=\"navhd\">" ~ obj.text ~ "</span>" ~ "\n";
+              } else {
+                string hashtag =(obj.heading_lev_markup == 4)
+                ? ""
+                : ("#" ~ obj.ocn.to!string);
+                toc ~= markup.indent_by_spaces_provided((n + 1), "  ") ~ "<li>" ~ "\n"
+                ~ markup.indent_by_spaces_provided((n + 2), "  ")
+                ~ "<a href=\"" ~ obj.segment_anchor_tag ~ ".xhtml" ~ hashtag ~ "\">"
+                ~ obj.text
+                ~ "</a>" ~ "\n";
+              }
+              break;
+            default :
+              break;
+            }
+          }
+        }
+      }
+    }
+    toc ~="</nav>\n";
+    return toc;
+  }
+  string epub2_oebps_toc_ncx(D,I)(D doc_abstraction, I doc_matters) {
+    int counter = 0;
+    string uuid = "18275d951861c77f78acd05672c9906924c59f18a2e0ba06dad95959693e9bd8"; // TODO shared elsewhere
+    auto markup = InlineMarkup();
+    enum DomTags { none, open, close, close_and_open, open_still, }
+    string toc = format(q"¶<?xml version='1.0' encoding='utf-8'?>
+  <ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" version="2005-1">
+    <head>
+      <!-- four required metadata items (for all NCX documents,
+        (including the relaxed constraints of OPS 2.0) -->
+      <title>%s%s</title>
+      <link href="css/xhtml.css" rel="stylesheet" type="text/css" id="main-css" />
+      <meta name="dtb:uid" content="urn:uuid:%s" />
+      <!-- <meta name="epub-creator" content="SiSU http://www.jus.uio.no/sisu (this copy)" /> -->
+      <meta name="dtb:depth" content="%s" />
+      <meta name="dtb:totalPageCount" content="0" />
+      <meta name="dtb:maxPageNumber" content="0" />
+    </head>
+    <docTitle>
+      <text>%s</text>
+    </docTitle>
+    <docAuthor>
+      <text>%s</text>
+    </docAuthor>
+    <navMap>¶",
+      doc_matters.dochead_meta["title"]["full"],                                                               // title
+      (doc_matters.dochead_meta["creator"]["author"].empty) ? "" : " by " ~ doc_matters.dochead_meta["creator"]["author"], // author
+      uuid,                                                                                        // uuid
+      "3",                                                                                         // content depth
+      doc_matters.dochead_meta["title"]["full"],                                                               // title
+      (doc_matters.dochead_meta["creator"]["author"].empty) ? "" : doc_matters.dochead_meta["creator"]["author"],          // author
+    );
+    foreach (sect; doc_matters.keys_seq_seg) {
+      foreach (obj; doc_abstraction[sect]) {
+        if (obj.is_a == "heading") {
+          foreach_reverse (k; 0 .. 7) {
+            switch (obj.dom_markedup[k]) {
+            case DomTags.close :
+  toc ~= "</navPoint>";
+              break;
+            case DomTags.close_and_open :
+              ++counter;
+  toc ~= "</navPoint>";
+  toc ~= format(q"¶<navPoint class="chapter" id="navpoint" playOrder="%s">
+  <navLabel>
+    <text>%s</text>
+  </navLabel>
+  <content src="%s" />¶",
+  counter,
+  obj.text,
+  obj.segment_anchor_tag,   // lev < 4 [no link]; lev == 4 [filename] markup.xhtml; lev > 4 [filename#ocn] (links done in segment_anchor_tag)
+  );
+              break;
+            case DomTags.open :
+              ++counter;
+  toc ~= format(q"¶<navPoint class="chapter" id="navpoint" playOrder="%s">
+  <navLabel>
+    <text>%s</text>
+  </navLabel>
+  <content src="%s" />¶",
+  counter,
+  obj.text,
+  obj.segment_anchor_tag,   // lev < 4 [no link]; lev == 4 [filename] markup.xhtml; lev > 4 [filename#ocn] (fix links in segment_anchor_tag)
+  );
+              break;
+            default :
+              break;
+            }
+          }
+        }
+      }
+    }
+    toc ~= format(q"¶  </navMap>
+  </ncx>¶");
+    return toc;
+  }
+  
+  void outputEPub3(D,I)(
+    auto return ref const D    doc_abstraction,
+    auto return ref I          doc_matters,
+  ) {
+    mixin SiSUoutputRgxInit;
+    auto xhtml_format = outputXHTMLs();
+    auto rgx = Rgx();
+    string[][string] doc_epub3;
+    string[][string] doc_epub3_endnotes;
+    string[] doc;
+    string segment_filename;
+    string[] top_level_headings = ["","","",""];
+    string[string] oepbs_content_parts;
+    string suffix = ".xhtml";
+    foreach (part; doc_matters.keys_seq_seg) {
+      foreach (obj; doc_abstraction[part]) {
+        if (obj.is_a == "heading") {
+          switch (obj.heading_lev_markup) {
+          case 0: .. case 3:
+            /+ fill buffer, and replace with new levels from 1 to 3 +/
+            switch (obj.heading_lev_markup) {
+            case 0:
+              top_level_headings[0] = "";
+              top_level_headings[1] = "";
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 1:
+              top_level_headings[1] = "";
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 2:
+              top_level_headings[2] = "";
+              top_level_headings[3] = "";
+              goto default;
+            case 3:
+              top_level_headings[3] = "";
+              goto default;
+            default:
+              auto t = xhtml_format.heading_seg(obj, suffix);
+              top_level_headings[obj.heading_lev_markup] = t[0];
+              break;
+            }
+            break;
+          case 4:
+            segment_filename = obj.segment_anchor_tag;
+            doc_epub3[segment_filename] ~= xhtml_format.seg_head(doc_matters.dochead_meta);
+            foreach (top_level_heading; top_level_headings) {
+              doc_epub3[segment_filename] ~= top_level_heading;
+            }
+            auto t = xhtml_format.heading_seg(obj, suffix);
+            doc_epub3[segment_filename] ~= t[0];
+            doc_epub3_endnotes[segment_filename] ~= t[1];
+            break;
+          case 5: .. case 7:
+            auto t = xhtml_format.heading_seg(obj, suffix);
+            doc_epub3[segment_filename] ~= t[0];
+            doc_epub3_endnotes[segment_filename] ~= t[1];
+            break;
+          case 8: .. case 9: // unused numbers, if remain check
+            if ((doc_matters.opt_action_bool["debug"])) {
+              writeln(__FILE__, ":", __LINE__, ": ", obj.is_a, ": ", obj.heading_lev_markup);
+              writeln(__FILE__, ":", __LINE__, ": ", obj.text); // check
+            }
+            break;
+          default:
+            if ((doc_matters.opt_action_bool["debug"])) {
+              writeln(__FILE__, ":", __LINE__, ": ", obj.is_a, ": ", obj.heading_lev_markup);
+            }
+            break;
+          }
+        } else {
+          switch (obj.use) {
+          case "frontmatter":
+            switch (obj.is_of) {
+            case "para":
+              switch (obj.is_a) {
+              case "toc":
+                doc_epub3[segment_filename] ~= xhtml_format.toc(obj);
+                break;
+              default:
+                if ((doc_matters.opt_action_bool["debug"])) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.is_a);
+                }
+                break;
+              }
+              break;
+            default:
+              if ((doc_matters.opt_action_bool["debug"])) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.is_of);
+              }
+              break;
+            }
+            break;
+          case "body":
+            switch (obj.is_of) {
+            case "para":
+              switch (obj.is_a) {
+              case "para":
+                auto t = xhtml_format.para_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= t[0];
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                if ((doc_matters.opt_action_bool["debug"])) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.is_a);
+                }
+                break;
+              }
+              break;
+            case "block":
+              switch (obj.is_a) {
+              case "quote":
+                auto t = xhtml_format.quote_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= to!string(t[0]);
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "group":
+                auto t = xhtml_format.group_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= to!string(t[0]);
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "block":
+                auto t = xhtml_format.block_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= to!string(t[0]);
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "poem":
+                break;
+              case "verse":
+                auto t = xhtml_format.verse_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= to!string(t[0]);
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "code":
+                doc_epub3[segment_filename] ~= xhtml_format.code(obj);
+                break;
+              case "table":
+                auto t = xhtml_format.para_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= t[0];
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                if ((doc_matters.opt_action_bool["debug"])) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.is_a);
+                }
+                break;
+              }
+              break;
+            default:
+              if ((doc_matters.opt_action_bool["debug"])) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.is_of);
+              }
+              break;
+            }
+            break;
+          case "backmatter":
+            switch (obj.is_of) {
+            case "para":
+              switch (obj.is_a) {
+              case "endnote":
+                auto t = xhtml_format.para_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= t[0];
+                break;
+              case "glossary":
+                auto t = xhtml_format.para_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= t[0];
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "bibliography":
+                auto t = xhtml_format.para_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= t[0];
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "bookindex":
+                auto t = xhtml_format.para_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= t[0];
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              case "blurb":
+                auto t = xhtml_format.para_seg(obj, suffix);
+                doc_epub3[segment_filename] ~= t[0];
+                doc_epub3_endnotes[segment_filename] ~= t[1];
+                break;
+              default:
+                if ((doc_matters.opt_action_bool["debug"])) {
+                  writeln(__FILE__, ":", __LINE__, ": ", obj.is_a);
+                }
+                break;
+              }
+              break;
+            default:
+              if ((doc_matters.opt_action_bool["debug"])) {
+                writeln(__FILE__, ":", __LINE__, ": ", obj.is_of);
+              }
+              break;
+            }
+            break;
+          case "comment":
+            break;
+          default:
+            if ((doc_matters.opt_action_bool["debug"])) {
+              writeln(__FILE__, ":", __LINE__, ": ", obj.use);
+            }
+            break;
+          }
+        }
+        if (obj.is_a == "heading") {
+          if (obj.heading_lev_markup == 4) {
+            oepbs_content_parts["manifest_documents"] ~= format(q"¶      <item id="%s.xhtml" href="%s.xhtml" media-type="application/xhtml+xml" />
+  ¶",
+              obj.segment_anchor_tag,
+              obj.segment_anchor_tag,
+            );
+            oepbs_content_parts["spine"] ~= format(q"¶    <itemref idref="%s.xhtml" linear="yes" />
+  ¶",
+              obj.segment_anchor_tag,
+            );
+            oepbs_content_parts["guide"] ~= format(q"¶      <reference type="%s" href="%s" />
+  ¶",
+              obj.segment_anchor_tag,
+              obj.segment_anchor_tag,
+            );
+          } else if (obj.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.segment_anchor_tag,
+              obj.obj_cite_number,
+              obj.segment_anchor_tag,
+              obj.obj_cite_number,
+            );
+            oepbs_content_parts["spine"] ~= format(q"¶    <itemref idref="%s.xhtml#%s" linear="yes" />
+  ¶",
+              obj.segment_anchor_tag,
+              obj.obj_cite_number,
+            );
+            oepbs_content_parts["guide"] ~= format(q"¶      <reference type="%s#%s" href="%s#%s" />
+  ¶",
+              obj.segment_anchor_tag,
+              obj.obj_cite_number,
+              obj.segment_anchor_tag,
+              obj.obj_cite_number,
+            );
+          }
+        }
+      }
+    }
+    /+ epub specific documents +/
+    auto mimetypes = epub3_mimetypes;
+    auto meta_inf_container_xml = epub3_container_xml;
+    auto oebps_toc_ncx = epub2_oebps_toc_ncx(doc_abstraction, doc_matters);
+    auto oebps_toc_nav_xhtml = epub3_oebps_toc_nav_xhtml(doc_abstraction, doc_matters);
+    auto oebps_content_opf = epub3_oebps_content(doc_abstraction, doc_matters, oepbs_content_parts);
+    epub3_write_output_files(
+      doc_matters,
+      doc_epub3,
+      doc_epub3_endnotes,
+      mimetypes,
+      meta_inf_container_xml,
+      oebps_toc_nav_xhtml,
+      oebps_toc_ncx,
+      oebps_content_opf,
+    );
+  }
+  void epub3_write_output_files(M,D,E,Mt,Mic,Otnx,Otn,Oc)(
+    M    doc_matters,
+    D    doc_epub3,
+    E    doc_epub3_endnotes,
+    Mt   mimetypes,
+    Mic  meta_inf_container_xml,
+    Otnx oebps_toc_nav_xhtml,
+    Otn  oebps_toc_ncx,
+    Oc   oebps_content_opf,
+  ) {
+    debug(asserts) {
+      static assert(is(typeof(doc_epub3)              == string[][string]));
+      static assert(is(typeof(mimetypes)              == string));
+      static assert(is(typeof(meta_inf_container_xml) == string));
+      static assert(is(typeof(oebps_toc_nav_xhtml)    == string));
+      static assert(is(typeof(oebps_toc_ncx)          == string));
+      static assert(is(typeof(oebps_content_opf)      == string));
+    }
+    mixin SiSUpaths;
+    auto pth_epub3 = Epub3paths();
+    auto xhtml_format = outputXHTMLs();
+    /+ zip file +/
+    auto fn_epub = pth_epub3.epub_file(doc_matters.source_filename);
+    auto zip = new ZipArchive(); // ZipArchive zip = new ZipArchive();
+    /+ zip archive member files +/
+    try {
+      if (!exists(pth_epub3.doc_meta_inf(doc_matters.source_filename))) {
+        pth_epub3.doc_meta_inf(doc_matters.source_filename).mkdirRecurse;
+      }
+      if (!exists(pth_epub3.doc_oebps_css(doc_matters.source_filename))) {
+        pth_epub3.doc_oebps_css(doc_matters.source_filename).mkdirRecurse;
+      }
+      if (!exists(pth_epub3.doc_oebps_image(doc_matters.source_filename))) {
+        pth_epub3.doc_oebps_image(doc_matters.source_filename).mkdirRecurse;
+      }
+      { /+ OEBPS/[segments].xhtml (the document contents) +/
+        foreach (seg_filename; doc_matters.segnames) {
+          string fn = pth_epub3.fn_oebps_content_xhtml(doc_matters.source_filename, seg_filename);
+          /+ add zip archive file members (with their content) +/
+          auto zip_arc_member_file = new ArchiveMember();
+          // add seg fn to zip archive
+          zip_arc_member_file.name = fn;
+          auto zip_data = new OutBuffer();
+          debug(epub_output) {
+            string fn_dbg = pth_epub3.dbg_fn_oebps_content_xhtml(doc_matters.source_filename, seg_filename);
+            auto f = File(fn_dbg, "w");
+          }
+          /+ // f.writeln(seg_head); // not needed built and inserted earlier +/
+          foreach (docseg; doc_epub3[seg_filename]) {
+            debug(epub_output) { f.writeln(docseg); }
+            zip_data.write(docseg.dup); // cast as: char[]
+          }
+          foreach (docseg; doc_epub3_endnotes[seg_filename]) {
+            debug(epub_output) { f.writeln(docseg); }
+            zip_data.write(docseg.dup); // cast as: char[]
+          }
+          debug(epub_output) { f.writeln(xhtml_format.tail); } // needed for each lev4
+          zip_data.write(xhtml_format.tail.dup); // cast as: char[]
+          zip_arc_member_file.expandedData = zip_data.toBytes();
+          zip.addMember(zip_arc_member_file);
+          /+ create the zip file +/
+          createZipFile!()(fn_epub, zip.build());
+        }
+      }
+      string fn;
+      debug(epub_output) { string fn_dbg; }
+      File f;
+      { /+ mimetypes (identify zip file type) +/
+        debug(epub_output) {
+          fn_dbg = pth_epub3.dbg_fn_mimetypes(doc_matters.source_filename);
+          File(fn_dbg, "w").writeln(mimetypes);
+        }
+        fn = pth_epub3.fn_mimetypes(doc_matters.source_filename);
+        /+ add zip archive file members (with their content) +/
+        auto zip_arc_member_file = new ArchiveMember();
+        // add mimetypes to zip archive
+        zip_arc_member_file.name = fn;
+        auto zip_data = new OutBuffer();
+        zip_data.write(mimetypes.dup); // cast as: char[]
+        zip_arc_member_file.expandedData = zip_data.toBytes();
+        zip.addMember(zip_arc_member_file);
+        /+ create the zip file +/
+        createZipFile!()(fn_epub, zip.build());
+      }
+      { /+  META-INF/container.xml (identify doc root) +/
+        debug(epub_output) {
+          fn_dbg = pth_epub3.dbg_fn_dmi_container_xml(doc_matters.source_filename);
+          File(fn_dbg, "w").writeln(meta_inf_container_xml);
+        }
+        fn = pth_epub3.fn_dmi_container_xml(doc_matters.source_filename);
+        /+ add zip archive file members (with their content) +/
+        auto zip_arc_member_file = new ArchiveMember();
+        // add META-INF/container.xml to zip archive
+        zip_arc_member_file.name = fn;
+        auto zip_data = new OutBuffer();
+        zip_data.write(meta_inf_container_xml.dup); // cast as: char[]
+        zip_arc_member_file.expandedData = zip_data.toBytes();
+        zip.addMember(zip_arc_member_file);
+        /+ create the zip file +/
+        createZipFile!()(fn_epub, zip.build());
+      }
+      { /+ OEBPS/toc_nav.xhtml (navigation toc epub3) +/
+        debug(epub_output) {
+          fn_dbg = pth_epub3.dbg_fn_oebps_toc_nav_xhtml(doc_matters.source_filename);
+          File(fn_dbg, "w").writeln(oebps_toc_nav_xhtml);
+        }
+        fn = pth_epub3.fn_oebps_toc_nav_xhtml(doc_matters.source_filename);
+        /+ add zip archive file members (with their content) +/
+        auto zip_arc_member_file = new ArchiveMember();
+        // add OEBPS/toc_nav.xhtml to zip archive
+        zip_arc_member_file.name = fn;
+        auto zip_data = new OutBuffer();
+        zip_data.write(oebps_toc_nav_xhtml.dup); // cast as: char[]
+        zip_arc_member_file.expandedData = zip_data.toBytes();
+        zip.addMember(zip_arc_member_file);
+        /+ create the zip file +/
+        createZipFile!()(fn_epub, zip.build());
+      }
+      { /+ TODO OEBPS/toc.ncx (navigation toc epub2) +/
+        debug(epub_output) {
+          fn_dbg = pth_epub3.dbg_fn_oebps_toc_ncx(doc_matters.source_filename);
+          File(fn_dbg, "w").writeln(oebps_toc_ncx);
+        }
+        fn = pth_epub3.fn_oebps_toc_ncx(doc_matters.source_filename);
+        /+ add zip archive file members (with their content) +/
+        auto zip_arc_member_file = new ArchiveMember();
+        // add OEBPS/toc.ncx to zip archive
+        zip_arc_member_file.name = fn;
+        auto zip_data = new OutBuffer();
+        zip_data.write(oebps_toc_ncx.dup); // cast as: char[]
+        zip_arc_member_file.expandedData = zip_data.toBytes();
+        zip.addMember(zip_arc_member_file);
+        /+ create the zip file +/
+        createZipFile!()(fn_epub, zip.build());
+      }
+      { /+ TODO OEBPS/content.opf (doc manifest) +/
+        debug(epub_output) {
+          fn_dbg = pth_epub3.dbg_fn_oebps_content_opf(doc_matters.source_filename);
+          File(fn_dbg, "w").writeln(oebps_content_opf);
+        }
+        fn = pth_epub3.fn_oebps_content_opf(doc_matters.source_filename);
+        /+ add zip archive file members (with their content) +/
+        auto zip_arc_member_file = new ArchiveMember();
+        // add OEBPS/content.opf to zip archive
+        zip_arc_member_file.name = fn;
+        auto zip_data = new OutBuffer();
+        zip_data.write(oebps_content_opf.dup); // cast as: char[]
+        zip_arc_member_file.expandedData = zip_data.toBytes();
+        zip.addMember(zip_arc_member_file);
+        /+ create the zip file +/
+        createZipFile!()(fn_epub, zip.build());
+      }
+      { /+ OEBPS/_sisu/image (images) +/
+        foreach (image; doc_matters.image_list) {
+          if (exists("_sisu/image/"~ image)) {
+            ("_sisu/image/"~ image)
+            .copy((pth_epub3.doc_oebps_image(doc_matters.source_filename)) ~ "/" ~ image);
+          }
+        }
+        foreach (image; doc_matters.image_list) {
+          debug(epub_images) {
+            writeln(
+              "_sisu/image/", image, " -> ",
+              pth_epub3.doc_oebps_image(doc_matters.source_filename), "/", image
+            );
+          }
+          auto fn_src = "_sisu/image/"~ image;
+          auto fn_out =  pth_epub3.doc_oebps_image(doc_matters.source_filename).to!string ~ "/" ~ image;
+          if (exists(fn_src)) {
+            {
+              auto zip_arc_member_file = new ArchiveMember();
+              zip_arc_member_file.name = fn_out;
+              auto zip_data = new OutBuffer();
+              zip_data.write(cast(char[]) ((fn_src).read));
+              zip_arc_member_file.expandedData = zip_data.toBytes();
+              zip.addMember(zip_arc_member_file);
+              createZipFile!()(fn_epub, zip.build());
+            }
+          }
+        }
+      }
+    }
+    catch (ErrnoException ex) {
+      // Handle error
+    }
+    debug(epub_archive) {
+      if (exists(fn_epub)) {
+        try {
+          auto zipped = new ZipArchive((fn_epub).read);
+          foreach (filename, member; zipped.directory) {
+            auto data = zipped.expand(member);
+            writeln(filename, " length ", data.length); // member.name
+            // Use data
+          }
+        }
+        catch (ZipException ex) {
+          // Handle errors
+        }
+      }
+    }
+  }
+  
+}