Recommend a site to collect regular expressions--regular expressions

A regular expression (regular expression) describes a pattern of string matching that can be used to check whether a string contains a seed string, replaces a matching substring, or extracts a substring from a string that matches a condition. Regular expressions are useful tools for working with text, whether validating user input, searching for patterns within a string, or reformatting text in various effective ways.
As we all know, there is a RegularExpressionValidator validation control in ASP.net, and one of the properties is to fill in the regular expression that you write as a standard for validation.
I recommend to you this foreign website, collected from the world's programmers to provide regular expressions, can be categorized query, for each of the regular expression for a class, there are title,expression,description,matches,non-matches, There are also users using ratings. Very convenient. The project I'm working on is usually used to look at the regular expression.

URL is http://regexlib.com
Hope to help you.