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marijnhmarijnh
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Improve epub generation
1 parent cd4147f commit d793cbc

6 files changed

Lines changed: 75 additions & 17 deletions

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‎.gitignore‎

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Original file line numberDiff line numberDiff line change
@@ -20,4 +20,5 @@
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/img/cover.xcf
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/epub/[012]*.xhtml
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/epub/img/*
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/epub/content.opf
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/Eloquent_JavaScript.epub

‎Makefile‎

Lines changed: 7 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -84,10 +84,13 @@ ejs_tex.zip: nostarch/book.tex $(foreach CHAP,$(CHAPTERS),nostarch/$(CHAP).tex)
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mv /tmp/ejs_tex.zip $@
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rm -rf $(TMPDIR)
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Eloquent_JavaScript.epub: epub/titlepage.xhtml epub/toc.xhtml $(foreach CHAP,$(CHAPTERS),epub/$(CHAP).xhtml) epub/content.opf epub/style.css
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Eloquent_JavaScript.epub: epub/titlepage.xhtml epub/toc.xhtml $(foreach CHAP,$(CHAPTERS),epub/$(CHAP).xhtml) \
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epub/content.opf.src epub/style.css bin/add_images_to_epub.js
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rm -f $@
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grep '<img' epub/*.xhtml | sed -e 's/.*src="\([^"]*\)".*/\1/' | xargs -I{} cp --parents "{}" epub
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node bin/add_images_to_epub.js
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cd epub; zip -X ../$@ mimetype
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cd epub; zip -X ../$@ -r * -x mimetype
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cd epub; zip -X ../$@ -r * -x mimetype -x content.opf.src
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92-
epub/%.xhtml: %.txt asciidoc_epub.conf
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asciidoc -f asciidoc_epub.conf --backend=xhtml11 -o $@ $<
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epub/%.xhtml: %.txt asciidoc_epub.conf bin/pre_epub.js
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node bin/pre_epub.js $< | asciidoc -f asciidoc_epub.conf --backend=xhtml11 -o $@ -

‎asciidoc_epub.conf‎

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Original file line numberDiff line numberDiff line change
@@ -63,7 +63,7 @@ template::[source-filter-style]
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<body>
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<article>
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<h1{id? id="{id}"}>{chap_num?<span class="chap_num">Chapter {chap_num}</span>}{doctitle}</h1>
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<h1 id="{docid}">{chap_num?<span class="chap_num">Chapter {chap_num}</span>}{doctitle}</h1>
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[footer]
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</article>

‎bin/add_images_to_epub.js‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,24 @@
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var fs = require("fs"), path = require("path");
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var images = [];
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function scanDir(dir) {
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fs.readdirSync(dir).forEach(function(file) {
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var full = path.resolve(dir, file), type;
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if (fs.lstatSync(full).isDirectory())
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return scanDir(full);
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if (/\.svg$/.test(file))
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type = "image/svg+xml";
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else if (/\.png$/.test(file))
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type = "image/png";
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else if (/\.jpg$/.test(file))
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type = "image/jpeg";
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else
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throw new Error("Unknown image type: " + full);
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var local = full.slice(full.indexOf("/img/") + 1);
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images.push(" <item id=\"image." + file + "\" href=\"" + local + "\" media-type=\"" + type + "\"/>");
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});
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}
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scanDir("epub/img");
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var out = fs.readFileSync("epub/content.opf.src", "utf8").replace("{{images}}", images.join("\n"));
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fs.writeFileSync("epub/content.opf", out);

‎bin/pre_epub.js‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,30 @@
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// Script to pre-process the asciidoc sources for generating EPUB.
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var fs = require("fs"), child = require("child_process");
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var infile = process.argv[2];
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var instream;
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if (infile == "-") {
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instream = process.stdin;
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instream.resume();
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} else {
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instream = fs.createReadStream(infile);
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}
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var input = "";
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instream.on("data", function(chunk) {
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input += chunk;
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});
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instream.on("end", function() {
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if (infile != "-")
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input = ":docid: " + infile.match(/^\d{2}_(.*?)\.txt/)[1] + "\n" + input;
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process.stdout.write(input.replace(/\blink:([^\.]+)\.html#(.*?)\[|!!(hint)!![^]+?!!hint!!(?:\n|$)/g,
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function(match, linkFile, linkID, hint) {
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if (linkFile) {
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return "link:" + linkFile + ".xhtml#" + linkID + "[";
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} else if (hint) {
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return "";
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}
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}));
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});

epub/content.opf renamed to epub/content.opf.src

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Original file line numberDiff line numberDiff line change
@@ -18,30 +18,30 @@
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<item id="titlepage" href="titlepage.xhtml" media-type="application/xhtml+xml"/>
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<item id="c00_intro" href="00_intro.xhtml" media-type="application/xhtml+xml"/>
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<item id="c01_values" href="01_values.xhtml" media-type="application/xhtml+xml"/>
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<item id="c02_program_structure" href="02_program_structure.xhtml" media-type="application/xhtml+xml"/>
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<item id="c02_program_structure" href="02_program_structure.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c03_functions" href="03_functions.xhtml" media-type="application/xhtml+xml"/>
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<item id="c04_data" href="04_data.xhtml" media-type="application/xhtml+xml"/>
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<item id="c04_data" href="04_data.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c05_higher_order" href="05_higher_order.xhtml" media-type="application/xhtml+xml"/>
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<item id="c06_object" href="06_object.xhtml" media-type="application/xhtml+xml"/>
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<item id="c06_object" href="06_object.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c07_elife" href="07_elife.xhtml" media-type="application/xhtml+xml"/>
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<item id="c08_error" href="08_error.xhtml" media-type="application/xhtml+xml"/>
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<item id="c09_regexp" href="09_regexp.xhtml" media-type="application/xhtml+xml"/>
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<item id="c09_regexp" href="09_regexp.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c10_modules" href="10_modules.xhtml" media-type="application/xhtml+xml"/>
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<item id="c11_language" href="11_language.xhtml" media-type="application/xhtml+xml"/>
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<item id="c11_language" href="11_language.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c12_browser" href="12_browser.xhtml" media-type="application/xhtml+xml"/>
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<item id="c13_dom" href="13_dom.xhtml" media-type="application/xhtml+xml"/>
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<item id="c13_dom" href="13_dom.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c14_event" href="14_event.xhtml" media-type="application/xhtml+xml"/>
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<item id="c15_game" href="15_game.xhtml" media-type="application/xhtml+xml"/>
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<item id="c16_canvas" href="16_canvas.xhtml" media-type="application/xhtml+xml"/>
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<item id="c15_game" href="15_game.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c16_canvas" href="16_canvas.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c17_http" href="17_http.xhtml" media-type="application/xhtml+xml"/>
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<item id="c18_forms" href="18_forms.xhtml" media-type="application/xhtml+xml"/>
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<item id="c19_paint" href="19_paint.xhtml" media-type="application/xhtml+xml"/>
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<item id="c20_node" href="20_node.xhtml" media-type="application/xhtml+xml"/>
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<item id="c21_skillsharing" href="21_skillsharing.xhtml" media-type="application/xhtml+xml"/>
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<item id="c19_paint" href="19_paint.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c20_node" href="20_node.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="c21_skillsharing" href="21_skillsharing.xhtml" media-type="application/xhtml+xml" properties="svg"/>
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<item id="style" href="style.css" media-type="text/css"/>
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<item id="font.cinzel.bold" href="font/cinzel_bold.otf" media-type="application/vnd.ms-opentype"/>
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<item id="font.pt.regular" href="font/pt_mono.otf" media-type="application/vnd.ms-opentype"/>
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<item id="cover-image" properties="cover-image" href="img/cover.png" media-type="image/png"/>
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{{images}}
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</manifest>
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<spine>
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<itemref idref="titlepage" linear="yes"/>

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