def _PopLine(self):
    while len(self._current_line) <= self._column:
      if not self._lines:
        self._current_line = ''
        return
      self._line += 1
      self._column = 0
      self._current_line = self._lines.popleft()
dataset/ETHPy150Open AppScale/appscale/AppServer/google/net/proto2/python/public/text_format.py/_Tokenizer._PopLine/original