Tests the syntax of a string to see whether it may be an IPv4 address.
Tests the syntax of a string to see whether it may be an IPv4 address. This does not confirm whether it is a valid address, just that the syntax is valid.
Tests the syntax of a string to see whether it may be an IPv6 address.
Tests the syntax of a string to see whether it may be an IPv6 address. This does not confirm whether it is a valid address, just that the syntax is valid.
Tests the syntax of a string to see whether it may be an IPv4 or IPv6 address.
Tests the syntax of a string to see whether it may be an IPv4 or IPv6 address. This does not confirm whether it is a valid address, just that the syntax is valid.
Provides utilities for internet addresses.