Enumeration members
IPv4
IPv4 = "([0-9]{1,3}(\\.[0-9]{1,3}){3})"
IPv4_LOCAL
IPv4_LOCAL = "(192\\.168\\.|169\\.254\\.|10\\.|172\\.(1[6-9]|2\\d|3[01]))"
IPv6
IPv6 = "(?:[A-F0-9]{1,4}:){7}[A-F0-9]{1,4}"
NUMBER_AND_LETTER
NUMBER_AND_LETTER = "^[0-9A-Za-z]*$"