Regular expression to find URLs within a string

Question

Does anyone know of a regular expression I could use to find URLs within a string? I\'ve found a lot of regular expressions on Google for determining if an entire string is

Answer 1

(?:vnc|s3|ssh|scp|sftp|ftp|http|https)\:\/\/[\w\.]+(?:\:?\d{0,5})|(?:mailto|)\:[\w\.]+\@[\w\.]+

If you want an explanation of each part, try in regexr[.]com where you will get a great explanation of every character.

This is split by an "|" or "OR" because not all useable URI have "//" so this is where you can create a list of schemes as or conditions that you would be interested in matching.