_parser.py 文件源码

def parse(self, ping_message):
        headline, packet_info_line, body_line_list = self._preprocess_parse(
            line_list=ping_message)
        packet_pattern = (
            pp.Word(pp.nums) +
            pp.Literal("packets transmitted,") +
            pp.Word(pp.nums) +
            pp.Literal("packets received,")
        )

        self._destination = self._parse_destination(headline)

        parse_list = packet_pattern.parseString(_to_unicode(packet_info_line))
        self._packet_transmit = int(parse_list[0])
        self._packet_receive = int(parse_list[2])

        try:
            rtt_line = body_line_list[1]
        except IndexError:
            return

        if typepy.is_null_string(rtt_line):
            return

        rtt_pattern = (
            pp.Literal("round-trip min/avg/max/stddev =") +
            pp.Word(pp.nums + ".") + "/" +
            pp.Word(pp.nums + ".") + "/" +
            pp.Word(pp.nums + ".") + "/" +
            pp.Word(pp.nums + ".") +
            pp.Word(pp.nums + "ms")
        )
        parse_list = rtt_pattern.parseString(_to_unicode(rtt_line))
        self._rtt_min = float(parse_list[1])
        self._rtt_avg = float(parse_list[3])
        self._rtt_max = float(parse_list[5])
        self._rtt_mdev = float(parse_list[7])