Regular Expressions 101

Matches publicly available IPv4 addresses (excludes 10., 172.16-32, and 192.168 blocks).

socket io ipv6 and ipv4 to ipv4 convector

Match an IPv4 address and its description delimited by a 'newline' paragraph

matches valid ipv4 addresses

This will match valid IP addresses which are listed in RFC1918. 127.0.0.0 - 127.255.255.255 10.0.0.0 - 10.255.255.255 192.168.0.0 - 192.168.255.255 172.16.0.0 - 172.31.255.255

Given a string, the regex would match if it is a valid IPv4 address.

allows for all legal IPv4 addresses

Validate IPv4 addresses using PCRE's recursion patterns.

(!-\~][aeiou)

This performs a non-rigorous validation of IPv6 addresses. Should be used before handing off the value to a better parser/validator.

Check IPV6

Matches iOS device names. Groups and example matches: 0: Full device name ("iPhone 6s Plus") 1: Device name+class ("iPad Air") 2: Device name ("iPad") 3: Device class with preceding whitespace (" Mini")...

Allows exaclty 4 groups of digits in the range 0..255 seperated by . characters

Verbose IP4 simple address re N.B. You need to ensure that the re is in trebble quotes r""" .... """