我们从Python开源项目中，提取了以下19个代码示例，用于说明如何使用email.message.find()。
def _install_message(self, message): """Format a message and blindly write to self._file.""" from_line = None if isinstance(message, str) and message.startswith('From '): newline = message.find('\n') if newline != -1: from_line = message[:newline] message = message[newline + 1:] else: from_line = message message = '' elif isinstance(message, _mboxMMDFMessage): from_line = 'From ' + message.get_from() elif isinstance(message, email.message.Message): from_line = message.get_unixfrom() # May be None. if from_line is None: from_line = 'From MAILER-DAEMON %s' % time.asctime(time.gmtime()) start = self._file.tell() self._file.write(from_line + os.linesep) self._dump_message(message, self._file, self._mangle_from_) stop = self._file.tell() return (start, stop)
def _search_end(self): self.fp.readline() # Throw away header line while 1: pos = self.fp.tell() line = self.fp.readline() if not line: return if line[:5] == 'From ' and self._isrealfromline(line): self.fp.seek(pos) return # An overridable mechanism to test for From-line-ness. You can either # specify a different regular expression or define a whole new # _isrealfromline() method. Note that this only gets called for lines # starting with the 5 characters "From ". # # BAW: According to #http://home.netscape.com/eng/mozilla/2.0/relnotes/demo/content-length.html # the only portable, reliable way to find message delimiters in a BSD (i.e # Unix mailbox) style folder is to search for "\n\nFrom .*\n", or at the # beginning of the file, "^From .*\n". While _fromlinepattern below seems # like a good idea, in practice, there are too many variations for more # strict parsing of the line to be completely accurate. # # _strict_isrealfromline() is the old version which tries to do stricter # parsing of the From_ line. _portable_isrealfromline() simply returns # true, since it's never called if the line doesn't already start with # "From ". # # This algorithm, and the way it interacts with _search_start() and # _search_end() may not be completely correct, because it doesn't check # that the two characters preceding "From " are \n\n or the beginning of # the file. Fixing this would require a more extensive rewrite than is # necessary. For convenience, we've added a PortableUnixMailbox class # which does no checking of the format of the 'From' line.
def _install_message(self, message): """Format a message and blindly write to self._file.""" from_line = None if isinstance(message, str): message = self._string_to_bytes(message) if isinstance(message, bytes) and message.startswith(b'From '): newline = message.find(b'\n') if newline != -1: from_line = message[:newline] message = message[newline + 1:] else: from_line = message message = b'' elif isinstance(message, _mboxMMDFMessage): author = message.get_from().encode('ascii') from_line = b'From ' + author elif isinstance(message, email.message.Message): from_line = message.get_unixfrom() # May be None. if from_line is not None: from_line = from_line.encode('ascii') if from_line is None: from_line = b'From MAILER-DAEMON ' + time.asctime(time.gmtime()).encode() start = self._file.tell() self._file.write(from_line + linesep) self._dump_message(message, self._file, self._mangle_from_) stop = self._file.tell() return (start, stop)
