Regular Expressions 101

Community Patterns

URL check

1

Regular Expression
ECMAScript (JavaScript)

/
^(?:tcp|ip|udp|pop|smpt|t?ftp|https?):\/\/(?:[a-zA-Z]+:[a-zA-Z\.=%#\-_&]+@)?(?![\.\-])(?:(?:[a-z-A-Z0-9\-](?!\-{2,})){1,63}\.(?:[a-zA-Z0-9\-](?!\-{2,})){1,63}\.?(?:[a-zA-Z0-9\-](?!\-{2,})){1,63}?\.?(?:[a-zA-Z0-9\-](?!\-{2,})){1,63}?)(?:\:(?:[0-9]{1,4}|[0-6][0-5]{1,2}[0-3][0-5]))?(?:\/|\/(?!\/)(?:[a-zA-Z0-9\-\/](?!\/{2,}))+)?(?:\?(?:(?:[a-zA-Z0-9\-\_\=\&\:\+]|%(?:[A-Z0-9]){2})(?!%{2,}|={2,}|&{2,}|\+{2,}))+)(?:#(?:(?:[a-zA-Z0-9\=\-\_\:\~]|%[A-Z0-9]{2})(?!\={2,}|~{2,}|:{2,}|\-{2,}|\_{2,}))*)?$
/

Description

What it does?

The `RegExp tries to test if a url is valid or not according to Guildness for URL Display

Submitted by javalsai - 3 years ago