if (tagStart < 0)
if (tagStart < 0) { _output.append(_input.substring(_index));
    private String getNextTag()    {      int tagStart = _input.indexOf('<', _index);      if (tagStart < 0)        return null;      // consume everything upto the tag opening      _output.append(_input.substring(_index, tagStart + 1));      // skip the '<'      _index = tagStart + 1;            consumeNonWhiteSpace();      return _input.substring(tagStart + 1, _index);    }