module doc_reform.output.epub3; template outputEPub3() { import doc_reform.output; import std.digest.sha, std.file, std.outbuffer, std.uri, std.zip, std.conv : to; import doc_reform.output.create_zip_file, doc_reform.output.xmls, doc_reform.output.xmls_css; 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"¶¶") ~ "\n"; o ~= format(q"¶ ¶") ~ "\n\n"; return o; } string epub3_oebps_content(D,M,P)(D doc_abstraction, M doc_matters, P parts) { auto xhtml_format = outputXHTMLs(); auto pth_epub3 = DocReformPathsEPUB!()(doc_matters.output_path, doc_matters.src.language); string _uuid = "18275d951861c77f78acd05672c9906924c59f18a2e0ba06dad95959693e9bd8"; // TODO sort uuid in doc_matters! string content = format(q"¶ %s main %s subtitle %s %s %s Copyright: %s %s urn:uuid:%s ¶", _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), (doc_matters.conf_make_meta.meta.creator_author.empty) ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.creator_author), (doc_matters.conf_make_meta.meta.creator_author.empty) ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.creator_author), doc_matters.src.language, // language, fix (needed in dochead metadata) (doc_matters.conf_make_meta.meta.date_published.empty) ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.date_published), (doc_matters.conf_make_meta.meta.rights_copyright.empty) ? "" : xhtml_format.special_characters_text(doc_matters.conf_make_meta.meta.rights_copyright), _uuid, _uuid, _uuid, (pth_epub3.fn_oebps_css(doc_matters.src.filename)).chompPrefix("OEBPS/"), ); content ~= " " ~ "" ~ "\n "; content ~= parts["manifest_documents"]; // TODO sort jpg & png content ~= " " ~ "" ~ "\n "; foreach (image; doc_matters.srcs.image_list) { content ~= format(q"¶ ¶", image.baseName.stripExtension, (pth_epub3.doc_oebps_image(doc_matters.src.filename)).chompPrefix("OEBPS/"), image, image.extension.chompPrefix("."), ); } content ~= " " ~ "" ~ "\n "; content ~= " " ~ "" ~ "\n "; content ~= parts["spine"]; content ~= " " ~ "" ~ "\n "; content ~= " " ~ "" ~ "\n "; content ~= parts["guide"]; content ~= " " ~ "" ~ "\n "; content ~= "" ~ ""; debug(epubmanifest) { foreach (part; doc_matters.xml.keys_seq.seg) { // TODO foreach (obj; doc_abstraction[part]) { if (obj.metainfo.is_a == "heading") { if (obj.metainfo.heading_lev_markup == 4) { writefln( "%s~ [%s.xhtml] %s", obj.marked_up_level, obj.tags.segment_anchor_tag_epub, obj.text ); } else if (obj.metainfo.heading_lev_markup > 4) { writefln( "%s~ [%s.xhtml#%s] %s", obj.marked_up_level, obj.tags.segment_anchor_tag_epub, obj.metainfo.object_number, obj.text ); } } } } } 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(); auto rgx = Rgx(); string toc =format(" %s

Contents

\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(); auto rgx = Rgx(); enum DomTags { none, open, close, close_and_open, open_still, } string toc = format(q"¶ %s%s %s %s ¶", doc_matters.conf_make_meta.meta.title_full, // title (doc_matters.conf_make_meta.meta.creator_author.empty) ? "" : " by " ~ doc_matters.conf_make_meta.meta.creator_author, // author _uuid, // uuid "3", // content depth doc_matters.conf_make_meta.meta.title_full, // title (doc_matters.conf_make_meta.meta.creator_author.empty) ? "" : doc_matters.conf_make_meta.meta.creator_author, // author ); foreach (sect; doc_matters.xml.keys_seq.seg) { foreach (obj; doc_abstraction[sect]) { 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); foreach_reverse (k; 0 .. 7) { switch (obj.metainfo.dom_structure_markedup_tags_status[k]) { case DomTags.close : toc ~= "\n "; break; case DomTags.close_and_open : ++counter; toc ~= "\n "; toc ~= format(q"¶ %s ¶", counter, _txt, obj.tags.segment_anchor_tag_epub, hashtag, ); break; case DomTags.open : ++counter; toc ~= format(q"¶ %s ¶", counter, _txt, obj.tags.segment_anchor_tag_epub, hashtag, ); break; default : break; } } } } } toc ~= format(q"¶ ¶"); return toc; } void outputEPub3(D,I)( const D doc_abstraction, I doc_matters, ) { mixin DocReformOutputRgxInit; auto xhtml_format = outputXHTMLs(); auto rgx = Rgx(); string[] doc; string segment_filename; string[] top_level_headings = ["","","",""]; string[string] oepbs_content_parts; string suffix = ".xhtml"; struct writeOut { /+ epub specific documents +/ /+ fixed output +/ string mimetypes; string meta_inf_container_xml; string oebps_toc_ncx; string oebps_toc_nav_xhtml; /+ variable output +/ string oebps_content_opf; string[][string] doc_epub3; string[][string] doc_epub3_endnotes; string[] doc_parts; } auto epubWrite = writeOut(); // writeln(doc_matters.xml.keys_seq.seg); foreach (part; doc_matters.xml.keys_seq.seg) { foreach (obj; doc_abstraction[part]) { string _txt = xhtml_format.special_characters(obj); if (obj.metainfo.is_a == "heading") { assert(part == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail"); switch (obj.metainfo.heading_lev_markup) { case 0: .. case 3: /+ fill buffer, and replace with new levels from 1 to 3 +/ switch (obj.metainfo.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: 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"); epubWrite.doc_epub3[obj.tags.segment_anchor_tag_epub] ~= t[0]; epubWrite.doc_epub3_endnotes[obj.tags.segment_anchor_tag_epub] ~= t[1]; break; } break; 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"); 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"); epubWrite.doc_epub3[segment_filename] ~= t[0]; epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1]; break; case 8: .. case 9: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup); writeln(__FILE__, ":", __LINE__, ": ", obj.text); } } break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a, ": ", obj.metainfo.heading_lev_markup); } } break; } } else { assert(part == "head" || "toc" || "body" || "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail"); 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"); epubWrite.doc_epub3[segment_filename] ~= t[0]; epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1]; break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a); } } break; } break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type); } } break; } break; case "body": assert(part == "body"); switch (obj.metainfo.is_of_type) { case "para": switch (obj.metainfo.is_a) { case "para": auto 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; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a); } } break; } break; case "block": switch (obj.metainfo.is_a) { case "quote": auto 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"); 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"); 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"); epubWrite.doc_epub3[segment_filename] ~= t[0].to!string; epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1]; break; case "code": epubWrite.doc_epub3[segment_filename] ~= xhtml_format.code(_txt, obj); break; case "table": epubWrite.doc_epub3[segment_filename] ~= xhtml_format.table(_txt, obj); epubWrite.doc_epub3_endnotes[segment_filename] ~= ""; break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a); } } break; } break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type); } } break; } break; case "backmatter": assert(part == "endnotes" || "glossary" || "bibliography" || "bookindex" || "blurb" || "tail"); switch (obj.metainfo.is_of_type) { case "para": switch (obj.metainfo.is_a) { case "endnote": assert(part == "endnotes"); auto 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"); 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"); 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"); 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"); epubWrite.doc_epub3[segment_filename] ~= t[0]; epubWrite.doc_epub3_endnotes[segment_filename] ~= t[1]; break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_a); } } break; } break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_type); } } break; } break; case "comment": break; default: { /+ debug +/ if (doc_matters.opt.action.debug_do && doc_matters.opt.action.verbose) { writeln(__FILE__, ":", __LINE__, ": ", obj.metainfo.is_of_part); } } break; } } if (obj.metainfo.is_a == "heading") { assert(obj.text.length > 0); if (obj.metainfo.heading_lev_markup <= 4) { oepbs_content_parts["manifest_documents"] ~= format(q"¶ ¶", obj.tags.segment_anchor_tag_epub, obj.tags.segment_anchor_tag_epub, ); oepbs_content_parts["spine"] ~= format(q"¶ ¶", obj.tags.segment_anchor_tag_epub, ); oepbs_content_parts["guide"] ~= format(q"¶ ¶", 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"¶ ¶", obj.tags.segment_anchor_tag_epub, obj.metainfo.object_number, obj.tags.segment_anchor_tag_epub, obj.metainfo.object_number, ); oepbs_content_parts["spine"] ~= format(q"¶ ¶", obj.tags.segment_anchor_tag_epub, obj.metainfo.object_number, ); oepbs_content_parts["guide"] ~= format(q"¶ ¶", obj.tags.segment_anchor_tag_epub, obj.metainfo.object_number, obj.tags.segment_anchor_tag_epub, obj.metainfo.object_number, ); } } } } /+ epub specific documents +/ epubWrite.mimetypes = epub3_mimetypes; epubWrite.meta_inf_container_xml = epub3_container_xml; epubWrite.oebps_toc_ncx = doc_abstraction.epub2_oebps_toc_ncx(doc_matters); epubWrite.oebps_toc_nav_xhtml = doc_abstraction.epub3_oebps_toc_nav_xhtml(doc_matters); epubWrite.oebps_content_opf = doc_abstraction.epub3_oebps_content(doc_matters, oepbs_content_parts); epubWrite.epub3_write_output_files(doc_matters); } void epub3_write_output_files(W,I)( W epub_write, I doc_matters, ) { debug(asserts) { static assert(is(typeof(epub_write.doc_epub3) == string[][string])); static assert(is(typeof(epub_write.mimetypes) == string)); static assert(is(typeof(epub_write.meta_inf_container_xml) == string)); static assert(is(typeof(epub_write.oebps_toc_nav_xhtml) == string)); static assert(is(typeof(epub_write.oebps_toc_ncx) == string)); static assert(is(typeof(epub_write.oebps_content_opf) == string)); } static auto rgx = Rgx(); auto pth_epub3 = DocReformPathsEPUB!()(doc_matters.output_path, doc_matters.src.language); auto xhtml_format = outputXHTMLs(); /+ zip file +/ auto fn_epub = pth_epub3.epub_file(doc_matters.src.filename); auto zip = new ZipArchive(); // ZipArchive zip = new ZipArchive(); /+ zip archive member files +/ void EPUBzip()(string contents, string fn) { auto zip_arc_member_file = new ArchiveMember(); zip_arc_member_file.name = fn; auto zip_data = new OutBuffer(); (doc_matters.opt.action.debug_do) ? zip_data.write(contents.dup) : zip_data.write(contents.dup .replaceAll(rgx.spaces_line_start, "") .replaceAll(rgx.newline, "") .strip ); zip_arc_member_file.expandedData = zip_data.toBytes(); zip.addMember(zip_arc_member_file); createZipFile!()(fn_epub, zip.build()); } try { if (!exists(pth_epub3.base)) { pth_epub3.base.mkdirRecurse; } { /+ debug +/ if (doc_matters.opt.action.debug_do) { if (!exists(pth_epub3.dbg_doc_meta_inf(doc_matters.src.filename))) { pth_epub3.dbg_doc_meta_inf(doc_matters.src.filename).mkdirRecurse; } if (!exists(pth_epub3.dbg_doc_oebps_css(doc_matters.src.filename))) { pth_epub3.dbg_doc_oebps_css(doc_matters.src.filename).mkdirRecurse; } if (!exists(pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename))) { pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename).mkdirRecurse; } } } { /+ OEBPS/[segments].xhtml (the document contents) +/ foreach (seg_filename; doc_matters.xml.segnames_lv_0_to_4) { string fn = pth_epub3.fn_oebps_content_xhtml(doc_matters.src.filename, seg_filename); auto zip_arc_member_file = new ArchiveMember(); zip_arc_member_file.name = fn; auto zip_data = new OutBuffer(); { /+ debug +/ if (doc_matters.opt.action.debug_do) { string fn_dbg = pth_epub3.dbg_fn_oebps_content_xhtml(doc_matters.src.filename, seg_filename); auto f = File(fn_dbg, "w"); foreach (docseg; epub_write.doc_epub3[seg_filename]) { f.writeln(docseg); } foreach (docseg; epub_write.doc_epub3_endnotes[seg_filename]) { f.writeln(docseg); } f.writeln(xhtml_format.tail); } } foreach (docseg; epub_write.doc_epub3[seg_filename]) { zip_data.write(docseg.dup); } foreach (docseg; epub_write.doc_epub3_endnotes[seg_filename]) { zip_data.write(docseg.dup); } zip_data.write(xhtml_format.tail.dup); 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; string fn_dbg; File f; { /+ mimetypes (identify zip file type) +/ { /+ debug +/ if (doc_matters.opt.action.debug_do) { fn_dbg = pth_epub3.dbg_fn_mimetypes(doc_matters.src.filename); File(fn_dbg, "w").writeln(epub_write.mimetypes); } } fn = pth_epub3.fn_mimetypes(doc_matters.src.filename); EPUBzip(epub_write.mimetypes, fn); } { /+ META-INF/container.xml (identify doc root) +/ { /+ debug +/ if (doc_matters.opt.action.debug_do) { fn_dbg = pth_epub3.dbg_fn_dmi_container_xml(doc_matters.src.filename); File(fn_dbg, "w").writeln(epub_write.meta_inf_container_xml); } } fn = pth_epub3.fn_dmi_container_xml(doc_matters.src.filename); EPUBzip(epub_write.meta_inf_container_xml, fn); } { /+ OEBPS/toc_nav.xhtml (navigation toc epub3) +/ { /+ debug +/ if (doc_matters.opt.action.debug_do) { fn_dbg = pth_epub3.dbg_fn_oebps_toc_nav_xhtml(doc_matters.src.filename); File(fn_dbg, "w").writeln(epub_write.oebps_toc_nav_xhtml); } } fn = pth_epub3.fn_oebps_toc_nav_xhtml(doc_matters.src.filename); EPUBzip(epub_write.oebps_toc_nav_xhtml, fn); } { /+ OEBPS/toc.ncx (navigation toc epub2) +/ { /+ debug +/ if (doc_matters.opt.action.debug_do) { fn_dbg = pth_epub3.dbg_fn_oebps_toc_ncx(doc_matters.src.filename); File(fn_dbg, "w").writeln(epub_write.oebps_toc_ncx); } } fn = pth_epub3.fn_oebps_toc_ncx(doc_matters.src.filename); EPUBzip(epub_write.oebps_toc_ncx, fn); } { /+ OEBPS/content.opf (doc manifest) +/ { /+ debug +/ if (doc_matters.opt.action.debug_do) { fn_dbg = pth_epub3.dbg_fn_oebps_content_opf(doc_matters.src.filename); File(fn_dbg, "w").writeln(epub_write.oebps_content_opf); } } fn = pth_epub3.fn_oebps_content_opf(doc_matters.src.filename); EPUBzip(epub_write.oebps_content_opf, fn); } { /+ OEBPS/_sisu/image (images) +/ foreach (image; doc_matters.srcs.image_list) { { /+ debug +/ if (doc_matters.opt.action.debug_do) { if (doc_matters.opt.action.very_verbose) { writeln( doc_matters.src.image_dir_path, "/", image, " -> ", pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename), "/", image ); } if (exists(doc_matters.src.image_dir_path ~ "/" ~ image)) { (doc_matters.src.image_dir_path ~ "/" ~ image) .copy((pth_epub3.dbg_doc_oebps_image(doc_matters.src.filename)) ~ "/" ~ image); } } } auto fn_src = doc_matters.src.image_dir_path ~ "/" ~ image; auto fn_out = pth_epub3.doc_oebps_image(doc_matters.src.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()); } } } } { /+ OEBPS/epub.css +/ auto css = DocReformCss(); { /+ debug +/ if (doc_matters.opt.action.debug_do) { fn_dbg = pth_epub3.dbg_fn_oebps_css(doc_matters.src.filename); (doc_matters.opt.action.css_theme_default) ? File(fn_dbg, "w").writeln(css.light.epub) : File(fn_dbg, "w").writeln(css.dark.epub); } } fn = pth_epub3.fn_oebps_css(doc_matters.src.filename); auto zip_arc_member_file = new ArchiveMember(); zip_arc_member_file.name = fn; auto zip_data = new OutBuffer(); (doc_matters.opt.action.css_theme_default) ? zip_data.write(css.light.epub.dup) : zip_data.write(css.dark.epub.dup); zip_arc_member_file.expandedData = zip_data.toBytes(); zip.addMember(zip_arc_member_file); createZipFile!()(fn_epub, zip.build()); } } catch (ErrnoException ex) { // Handle error } if (!(doc_matters.opt.action.quiet)) { writeln(" ", fn_epub); } 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); } } catch (ZipException ex) { // Handle errors } } } } }