Haskellers:
I run a website for testing regular expressions and just added support for Haskell and wanted to see if you find it useful/what you think/if you have any suggestions.

The site is RegexPlanet, the Haskell testing page is at:
http://www.regexplanet.com/advanced/haskell/index.html

It uses Text.Regex.TDFA flavor.  You can see the source code on github:
https://github.com/fileformat/regexplanet-haskell

Disclaimer: I'm not a Haskell expert (actually, not even a newbie) and had someone else do the actual coding.

Again, any feedback is appreciated.  Thanks!  Enjoy!
Andrew