lots of regex in a module(set)
150 configurable regex
132225 tests! holy crap

numbers	
	int
	real
	decimal
	square
	roman
strings
	delim
	balance
lists
comments (lots of languages)
palindromes
whitespace
zip code
URIs (lots of schemas)
network addresses
profanity
US SSNs

in the works:
	.uk and .ca postal codes
	ISBNs
	dutch ssns
	more URI schemes

synopsis
	print $_, /^$RE{num}{int}$/ ? " is integer"
	                            : " isn't an integer";

	print $_, /^$RE{num}{int}{-sep => ","} $/ ? " is integer"
	                                          : " isn't an integer";

	print $_, /^$RE{num}{int}{-sep => ","}{-group => 4} $/ ? " is integer"
	                                                       : " isn't an integer";

RE::C's can be curried -- that's how they work

lots of stuff that was just examples followed. it was totally awesome, but too
hard to transcribe.

RE::C?  It's cool as hell.