Add a command-line code highlighting tool

addon/runmode/runmode.node.js

@@ -60,7 +60,13 @@ exports.startState = function(mode, a1, a2) {
 };
 
 var modes = exports.modes = {}, mimeModes = exports.mimeModes = {};
-exports.defineMode = function(name, mode) { modes[name] = mode; };
+exports.defineMode = function(name, mode) {
+  if (arguments.length > 2) {
+    mode.dependencies = [];
+    for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
+  }
+  modes[name] = mode;
+};
 exports.defineMIME = function(mime, spec) { mimeModes[mime] = spec; };
 exports.getMode = function(options, spec) {
   if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))

bin/source-highlight

+#!/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");
+
+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;
+CodeMirror.modeInfo.forEach(function(info) {
+  if (info.mime == lang) {
+    modeName = info.mode;
+  } else if (info.name.toLowerCase() == lang) {
+    modeName = info.mode;
+    lang = info.mime;
+  }
+});
+
+function ensureMode(name) {
+  if (CodeMirror.modes[name]) return;
+  try {
+    require("../mode/" + name + "/" + name + ".js");
+  } catch(e) {
+    console.error("Could not load mode " + name + ".");
+    process.exit(1);
+  }
+  var obj = CodeMirror.modes[name];
+  if (obj.dependencies) obj.dependencies.forEach(ensureMode);
+}
+ensureMode(modeName);
+
+function esc(str) {
+  return str.replace(/[<&]/, 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();

mode/javascript/javascript.js

@@ -463,5 +463,6 @@ CodeMirror.defineMIME("text/ecmascript", "javascript");
 CodeMirror.defineMIME("application/javascript", "javascript");
 CodeMirror.defineMIME("application/ecmascript", "javascript");
 CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
 CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
 CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });

mode/meta.js

@@ -27,6 +27,7 @@ CodeMirror.modeInfo = [
   {name: 'HTML', mime: 'text/html', mode: 'htmlmixed'},
   {name: 'HTTP', mime: 'message/http', mode: 'http'},
   {name: 'JavaScript', mime: 'text/javascript', mode: 'javascript'},
+  {name: 'JSON', mime: 'application/x-json', mode: 'javascript'},
   {name: 'JSON', mime: 'application/json', mode: 'javascript'},
   {name: 'TypeScript', mime: 'application/typescript', mode: 'javascript'},
   {name: 'Jinja2', mime: 'jinja2', mode: 'jinja2'},