Laszlo Nagy
Hi All,
I was volunteer to solve this problem: http://hackage.haskell.org/trac/summer-of-code/ticket/1565 In a conversation on the libraries@haskell.org I was suggested to scratch my idea here.
I would use hoogle for this. Currently it stores the package name and the symbols of the modules about a package.
What do you think about hayoo? I prefer this to hoogle, as hayoo has more complete database across hackage packages, AFAIK
I would extend it to store the version of the package as well. Extend the query methods to use all the available package description at search. And make a VersionRange from the matched Versions.
I wrote some code for doing this a while ago. Take a look and make some comments, I can extend this library to satisfy your needs http://hackage.haskell.org/package/cabal-query