anchor.diff:  		    && c != _CLOSE_MUSTACHE
   		    && c != _EOF);
   
  -String _readLine() => _r.readWhile(
  +	String _readLine() => _r.readWhile(
   		(c) => c != _OPEN_MUSTACHE
   		    && c != _CLOSE_MUSTACHE
   		    && c != _EOF
  
positive.code: const int _EOF = -1;
  const int _TAB = 9;
  const int _NEWLINE = 10;
  const int _SPACE = 32;
  const int _EXCLAIM = 33;
  const int _QUOTE = 34;
  
negative.code: 					_read();
  					_addCharToken(_TEXT, _CLOSE_MUSTACHE);
  					break;
  				case _RETURN:
  					_read();
  					if (_peek() == _NEWLINE) {
  						_read();
  						_tokens.add(new _Token(_LINE_END, '\r\n', _r.line, _r.column));
  					} else {
  						_addCharToken(_TEXT, _RETURN);
  					}
  					break;
  				case _NEWLINE:
  					_read();
  					_addCharToken(_LINE_END, _NEWLINE); //TODO handle \r\n
  