468. 验证IP地址

import re


class Solution:
    @staticmethod
    def is_ipv4(queryIP: str) -> bool:
        m = re.fullmatch(r'(\d+)\.(\d+)\.(\d+)\.(\d+)', queryIP)
        if m is None:
            return False

        return all(0 <= int(i) <= 255 and str(int(i)) == i for i in m.groups())

    @staticmethod
    def is_ipv6(queryIP: str) -> bool:
        return re.fullmatch(r'[\da-fA-F]{1,4}(:[\da-fA-F]{1,4}){7}', queryIP) is not None

    def validIPAddress(self, queryIP: str) -> str:
        if self.is_ipv4(queryIP):
            return 'IPv4'

        if self.is_ipv6(queryIP):
            return 'IPv6'

        return 'Neither'