class_docstr: A feed-style parser of email.
class_docstr_tok: ["A","feed-style","parser","of","email","."]
docstr: _factory is called with no arguments to create a new message obj
docstr_tok: ["_factory","is","called","with","no","arguments","to","create","a","new","message","obj"]
code: def __init__(self, _factory=message.Message):
      """_factory is called with no arguments to create a new message obj"""
      self._factory = _factory
      self._input = BufferedSubFile()
      self._msgstack = []
      self._parse = self._parsegen().next
      self._cur = None
      self._last = None
      self._headersonly = False
  
imports: import re
  from email import errors
  from email import message
label_desc: Use image node_id 1 to create a new FeedParser object  with example: obj = FeedParser(_factory)