highlight js identifiers with unicode characters.

fix #148

lib/ace/mode/javascript_highlight_rules.js

@@ -40,6 +40,7 @@ define(function(require, exports, module) {
 
 var oop = require("pilot/oop");
 var lang = require("pilot/lang");
+var regexp = require("ace/regexp");
 var DocCommentHighlightRules = require("ace/mode/doc_comment_highlight_rules").DocCommentHighlightRules;
 var TextHighlightRules = require("ace/mode/text_highlight_rules").TextHighlightRules;
 
@@ -60,6 +61,13 @@ var JavaScriptHighlightRules = function() {
         "public|interface|package|protected|static").split("|")
     );
 
+    // TODO: Unicode escape sequences
+    var identifierRe = "[" + regexp.unicode.L + "\\$_][" 
+        + regexp.unicode.L
+        + regexp.unicode.Mn + regexp.unicode.Mc
+        + regexp.unicode.Nd
+        + regexp.unicode.Pc + "\\$_]*\\b";
+        
     // regexp must not have capturing parentheses. Use (?:) instead.
     // regexps are ordered -> the first match is used
 
@@ -115,9 +123,7 @@ var JavaScriptHighlightRules = function() {
                     else
                         return "identifier";
                 },
-                // TODO: Unicode escape sequences
-                // TODO: Unicode identifiers
-                regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
+                regex : identifierRe
             }, {
                 token : "keyword.operator",
                 regex : "!|\\$|%|&|\\*|\\-\\-|\\-|\\+\\+|\\+|~|===|==|=|!=|!==|<=|>=|<<=|>>=|>>>=|<>|<|>|!|&&|\\|\\||\\?\\:|\\*=|%=|\\+=|\\-=|&=|\\^=|\\b(?:in|instanceof|new|delete|typeof|void)"