anchor.diff:      List<Lexeme> output                          = [];
       
       @protected int position                      = 0;
  -    @protected int length                        = 1;
   
       @protected int line                          = 1;
       @protected int column                        = 1;
  -
  -    @protected bool inText                       = false;
   
       @protected static const identifierBegin      = const
       [
  
positive.code:                 output.add(new Lexeme(type: LexemeType.parenthesisOpen, line: line, column: column));
              else if (nextIs(")", jump: true))
                  output.add(new Lexeme(type: LexemeType.parenthesisClose, line: line, column: column));
              else if (nextIs(",", jump: true))
                  output.add(new Lexeme(type: LexemeType.listSeparator, line: line, column: column));
              else if (nextIs("+", jump: true))
  
negative.code:         }
      }
  }
  