Online Regular Expression Testing
Regular expressions are an incredibly powerful tool, but can be rather tricky to get exactly right. This is a website that I wrote so I could quickly and easily test regular expressions during development.
Pick which programming language you are using:
Pick which programming language you are using:
Sharing
Share codes are an easy way to share regexes. If you have a share code, enter it here:
Status
A badly formed regular expression can run forever, making it very useful for denial of services attacks. Some of the engines/hosts are susceptible to these.
Regex Zone
The Regex Zone is the place to share regular expressions and find common regex patterns.
One last thing
Some people, when confronted with a problem, think “I know, I’ll use regular expressions.” Now they have two problems.
-- Jamie Zawinski in comp.lang.emacs (or somewhere else).
-- Jamie Zawinski in comp.lang.emacs (or somewhere else).
I define UNIX as “30 definitions of regular expressions living under one roof”.
-- Donald Knuth in Digital Typography, ch. 33, p. 649 (1999) via re2.
-- Donald Knuth in Digital Typography, ch. 33, p. 649 (1999) via re2.