add json5 mode

demo/kitchen-sink/docs/json5.json5

@@ -0,0 +1,25 @@
+{
+  foo: 'bar',
+  while: true,
+
+  this: 'is a \
+multi-line string',
+
+  // this is an inline comment
+  here: 'is another', // inline comment
+
+  /* this is a block comment
+     that continues on another line */
+
+  hex: 0xDEADbeef,
+  half: .5,
+  delta: +10,
+  to: Infinity,   // and beyond!
+
+  finally: 'a trailing comma',
+  oh: [
+    "we shouldn't forget",
+    'arrays can have',
+    'trailing commas too',
+  ],
+}

lib/ace/ext/modelist.js

@@ -109,6 +109,7 @@ var supportedModes = {
     Jade:        ["jade|pug"],
     Java:        ["java"],
     JavaScript:  ["js|jsm|jsx"],
+    JSON5:       ["json5"],
     JSON:        ["json"],
     JSONiq:      ["jq"],
     JSP:         ["jsp"],

lib/ace/mode/json5.js

@@ -0,0 +1,65 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Distributed under the BSD license:
+ *
+ * Copyright (c) 2010, Ajax.org B.V.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Ajax.org B.V. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+define(function(require, exports, module) {
+"use strict";
+
+var oop = require("../lib/oop");
+var TextMode = require("./text").Mode;
+var HighlightRules = require("./json5_highlight_rules").Json5HighlightRules;
+var MatchingBraceOutdent = require("./matching_brace_outdent").MatchingBraceOutdent;
+var CstyleBehaviour = require("./behaviour/cstyle").CstyleBehaviour;
+var CStyleFoldMode = require("./folding/cstyle").FoldMode;
+
+var Mode = function() {
+    this.HighlightRules = HighlightRules;
+    this.$outdent = new MatchingBraceOutdent();
+    this.$behaviour = new CstyleBehaviour();
+    this.foldingRules = new CStyleFoldMode();
+};
+oop.inherits(Mode, TextMode);
+
+(function() {
+    this.lineCommentStart = "//";
+    this.blockComment = {start: "/*", end: "*/"};
+
+    this.checkOutdent = function(state, line, input) {
+        return this.$outdent.checkOutdent(line, input);
+    };
+
+    this.autoOutdent = function(state, doc, row) {
+        this.$outdent.autoOutdent(doc, row);
+    };
+
+    this.$id = "ace/mode/json5";
+}).call(Mode.prototype);
+
+exports.Mode = Mode;
+});

lib/ace/mode/json5_highlight_rules.js

@@ -0,0 +1,91 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Distributed under the BSD license:
+ *
+ * Copyright (c) 2010, Ajax.org B.V.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Ajax.org B.V. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+define(function(require, exports, module) {
+"use strict";
+
+var oop = require("../lib/oop");
+var JsonHighlightRules = require("./json_highlight_rules").JsonHighlightRules;
+
+var Json5HighlightRules = function() {
+    JsonHighlightRules.call(this);
+
+    var startRules = [{
+        token : "variable",
+        regex : /[a-zA-Z$_\u00a1-\uffff][\w$\u00a1-\uffff]*\s*(?=:)/
+    }, {
+        token : "variable",
+        regex : /['](?:(?:\\.)|(?:[^'\\]))*?[']\s*(?=:)/
+    }, {
+        token : "constant.language.boolean",
+        regex : /(?:null)\b/
+    }, {
+        token : "string",
+        regex : /'/,
+        next  : [{
+            token : "constant.language.escape",
+            regex : /\\(?:x[0-9a-fA-F]{2}|u[0-9a-fA-F]{4}|["\/bfnrt]|$)/,
+            consumeLineEnd  : true
+        }, {
+            token : "string",
+            regex : /'|$/,
+            next  : "start"
+        }, {
+            defaultToken : "string"
+        }]
+    }, {
+        token : "string",
+        regex : /"(?![^"]*":)/,
+        next  : [{
+            token : "constant.language.escape",
+            regex : /\\(?:x[0-9a-fA-F]{2}|u[0-9a-fA-F]{4}|["\/bfnrt]|$)/,
+            consumeLineEnd  : true
+        }, {
+            token : "string",
+            regex : /"|$/,
+            next  : "start"
+        }, {
+            defaultToken : "string"
+        }]
+    }, {
+        token : "constant.numeric",
+        regex : /[+-]?(?:Infinity|NaN)\b/
+    }];
+
+    for (var key in this.$rules)
+        this.$rules[key].unshift.apply(this.$rules[key], startRules);
+
+    this.normalizeRules();
+};
+
+oop.inherits(Json5HighlightRules, JsonHighlightRules);
+
+exports.Json5HighlightRules = Json5HighlightRules;
+});