[carbonica]

Considering Facebook uses Haskell to automate changes to their PHP codebase, I'd imagine PHP isn't doing them any favors.

[__rkaup__]

I heard about that tool. Can you tell us more about what it does?

[antoncohen]

It is called lex-pass [1], it does syntax aware transformations of PHP. Like sed, but specifically for PHP. There is a video that mentions it briefly at 2:00 min [2].

[1] https://github.com/facebook/lex-pass [2] http://www.vimeo.com/6699769