':return: the given file(s) as a list of words
and punctuation symbols.
:rtype: list(str)
:param strip_space: If true, then strip trailing spaces from
word tokens.  Otherwise, leave the spaces on the tokens.
:param stem: If true, then use word stems instead of word strings.'

def words(self, fileids=None, strip_space=True, stem=False):

    return self._views(fileids, False, None, strip_space, stem)
