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executable file 49 lines (40 sloc) 1.36 KB
#!/usr/bin/env node
// Simple command-line code highlighting tool. Reads code from stdin,
// spits html to stdout. For example:
//
// echo 'function foo(a) { return a; }' | bin/source-highlight -s javascript
// bin/source-highlight -s
var fs = require("fs");
var CodeMirror = require("../addon/runmode/runmode.node.js");
require("../mode/meta.js");
var sPos = process.argv.indexOf("-s");
if (sPos == -1 || sPos == process.argv.length - 1) {
console.error("Usage: source-highlight -s language");
process.exit(1);
}
var lang = process.argv[sPos + 1].toLowerCase(), modeName = lang;
var found = CodeMirror.findModeByMIME(lang) || CodeMirror.findModeByName(lang)
if (found) {
modeName = found.mode
lang = found.mime
}
if (!CodeMirror.modes[modeName])
require("../mode/" + modeName + "/" + modeName + ".js");
function esc(str) {
return str.replace(/[<&]/g, function(ch) { return ch == "&" ? "&amp;" : "&lt;"; });
}
var code = fs.readFileSync("/dev/stdin", "utf8");
var curStyle = null, accum = "";
function flush() {
if (curStyle) process.stdout.write("<span class=\"" + curStyle.replace(/(^|\s+)/g, "$1cm-") + "\">" + esc(accum) + "</span>");
else process.stdout.write(esc(accum));
}
CodeMirror.runMode(code, lang, function(text, style) {
if (style != curStyle) {
flush();
curStyle = style; accum = text;
} else {
accum += text;
}
});
flush();