I hereby announce a new Debian project: Debian Code Search.
Debian Code Search is a search engine for program source code within Debian.
It allows you to search all ≈ 17000 source packages, containing 130 GiB of
FLOSS source code (including Debian packaging) with regular expressions.
You can use the search engine at http://codesearch.debian.net/
Here are a few sample queries:
The corresponding thesis (and source code, of course) will be released soon
(2013-01-15 being the deadline, but I hope I can do it earlier).