Regular expression for validating web site url
Regular expressions are a good way to validate text fields such as date,names, addresses, phone numbers, and other user information. Regex class for validate any input string for any specific format.
NET there are controls that rely on the language of regular expressions.This article covers the basics and recommends where to go to learn more. I hope it will also make a handy reference/refresher for developers who have used regular expressions before, in conjunction with my regular expression cheat sheet.This article is designed for beginners with little or no experience with regular expressions, but who are familiar with ASP. In this article, I will discuss: If you have questions about this article or regular expressions in general, I invite you to ask them on the regex mailing list at which as I'm writing this has over 350 subscribers.Regular expressions as they exist today were invented in the 1950s.Regular expressions were originally used to describe "regular sets," which were patterns under study by neurophysiologists.
Credit for the first regular expressions is given to the mathematician Stephen Kleene.