improve coffee script error messages

lib/ace/mode/coffee/lexer.js

@@ -225,6 +225,7 @@ define(function(require, exports, module) {
         return 0;
       }
       if (match = HEREGEX.exec(this.chunk)) {
+        this.line += count(match[0], '\n');        
         return this.heregexToken(match);
       }
       prev = last(this.tokens);

lib/ace/mode/coffee_worker.js

@@ -55,6 +55,7 @@ oop.inherits(Worker, Mirror);
     
     this.onUpdate = function() {
         var value = this.doc.getValue();
+        
         try {
             coffee.parse(value);
         } catch(e) {
@@ -66,6 +67,19 @@ oop.inherits(Worker, Mirror);
                     text: m[2],
                     type: "error"
                 });
+                return;
+            }
+            
+            if (e instanceof SyntaxError) {
+                var m = e.message.match(/ on line (\d+)/);
+                if (m) {                    
+                    this.sender.emit("error", {
+                        row: parseInt(m[1]) - 1,
+                        column: null,
+                        text: e.message.replace(m[0], ""),
+                        type: "error"
+                    });
+                }
             }
             return;
         }