[Python-Dev] Looking for programs using regular expressions

[Scott A Crosby]

I'm working on techniques to automatically identify problematic
regular expressions where carefully chosen inputs can cause a matcher
to run for a long time.

I need testcases, so I'm looking for Python software that that is
widely used and also uses lots of regular expressions. Can anyone
offer any suggestions of what I should look at? I'm also looking for
Perl software.

Thanks

Scott

I'm not on the list, so please CC me any replies.