             }
             return .Whitespace
 
-            // Strings.
+        // Strings.
         case "\"".utf8Constant:
             // Scan to the end of the string.
             //

        case "\n".utf8Constant:
            return .Newline
            
            // Comments.
        case "#".utf8Constant:
            // Scan to the end of the line.
            while let c = look() {

                return .Boolean(value: false)
            default:
                return .Identifier(value: value)
            }
            
        // Punctuation.
        case ",".utf8Constant:
            return .Comma
        case "=".utf8Constant:
