diff --git a/lib/ace/mode/text_highlight_rules.js b/lib/ace/mode/text_highlight_rules.js
index 466778aa..e342c355 100644
--- a/lib/ace/mode/text_highlight_rules.js
+++ b/lib/ace/mode/text_highlight_rules.js
@@ -71,32 +71,22 @@ var TextHighlightRules = function() {
     this.embedRules = function (HighlightRules, prefix, escapeRules, states, append) {
         var embedRules = new HighlightRules().getRules();
         if (states) {
-            for (var i = 0; i < states.length; i++) {
+            for (var i = 0; i < states.length; i++)
                 states[i] = prefix + states[i];
-            }
         } else {
             states = [];
-            for (var key in embedRules) {
+            for (var key in embedRules)
                 states.push(prefix + key);
-            }
         }
         
         this.addRules(embedRules, prefix);
 
-        if (append) {
-            for (var i = 0; i < states.length; i++) {
-                Array.prototype.push.apply(this.$rules[states[i]], lang.deepCopy(escapeRules));
-            }
-        }
-        else {
-            for (var i = 0; i < states.length; i++) {
-                Array.prototype.unshift.apply(this.$rules[states[i]], lang.deepCopy(escapeRules));
-            }
-        }
+        var addRules = Array.prototype[append ? "push" : "unshift"];
+        for (var i = 0; i < states.length; i++)
+            addRules.apply(this.$rules[states[i]], lang.deepCopy(escapeRules));       
 
-        if (!this.$embeds) {
+        if (!this.$embeds)
             this.$embeds = [];
-        }
         this.$embeds.push(prefix);
     }