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52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
#!/usr/bin/env node
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// Simple command-line code highlighting tool. Reads code from stdin,
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// spits html to stdout. For example:
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//
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// echo 'function foo(a) { return a; }' | bin/source-highlight -s javascript
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// bin/source-highlight -s
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var fs = require("fs");
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var CodeMirror = require("../addon/runmode/runmode.node.js");
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require("../mode/meta.js");
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var sPos = process.argv.indexOf("-s");
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if (sPos == -1 || sPos == process.argv.length - 1) {
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console.error("Usage: source-highlight -s language");
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process.exit(1);
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}
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var lang = process.argv[sPos + 1].toLowerCase(), modeName = lang;
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CodeMirror.modeInfo.forEach(function(info) {
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if (info.mime == lang) {
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modeName = info.mode;
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} else if (info.name.toLowerCase() == lang) {
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modeName = info.mode;
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lang = info.mime;
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}
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});
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if (!CodeMirror.modes[modeName])
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require("../mode/" + modeName + "/" + modeName + ".js");
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function esc(str) {
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return str.replace(/[<&]/g, function(ch) { return ch == "&" ? "&" : "<"; });
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}
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var code = fs.readFileSync("/dev/stdin", "utf8");
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var curStyle = null, accum = "";
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function flush() {
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if (curStyle) process.stdout.write("<span class=\"" + curStyle.replace(/(^|\s+)/g, "$1cm-") + "\">" + esc(accum) + "</span>");
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else process.stdout.write(esc(accum));
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}
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CodeMirror.runMode(code, lang, function(text, style) {
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if (style != curStyle) {
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flush();
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curStyle = style; accum = text;
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} else {
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accum += text;
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}
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});
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flush();
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