Regular Expressions 101 Aug. 16, 2016, 3:22 p.m.

Online regex tester and debugger

regex programming tools

Liberal, Accurate Regex Pattern for Matching URLs July 28, 2010, 10:11 a.m.

Attempts to solve: identify the URLs in an arbitrary string of text, where by “arbitrary” let’s agree we mean something unstructured such as an email message or a tweet.

code email howto tips web regex web development