This module provides a number IP address validation subs that both validate and untaint their input. This includes both basic validation ("is_ipv4()" and "is_ipv6()") and special cases like checking whether an address belongs to a specific network or...

A lot of CPAN modules have a common purpose: reporting if data has some "characteristics". Email::Valid is an illustrous example: reporting if a string has characteristics of an email address. The "address()" method reports this via returning 'yes' o...

There are various distributions on CPAN dealing with data that has semantics attached them. For example, an IP address is not just a string, but it has a format the can be checked. There is Data::Domain. It does not store the values to be tested, it ...

This module is a Perl Port for PyConstructs http://construct.wikispaces.com/ This module enables writing declarations for simple and complex binary structures, parsing binary to hash/array data structure, and building binary data from hash/array data...

This module validates a config hash reference against a given hash structure in contrast to Data::Validate in which you have to check each value separately using certain methods. This hash could be the result of a config parser or just any hash struc...

This module offers a few subroutines for validating domain and host names....

These are the builtin constraints that can be specified by name in the input profiles. Be sure to check out the SEE ALSO section for even more pre-packaged constraints you can use....