Re: [Haskell-cafe] How efficient is read?

The tarball was missing its Rules.hs; as it happens, GHC has a module named Rules.hs as well, hence the confusing error. I've uploaded a fresh one that should work.

Thanks. This builds and installs fine. But I think there is something wrong with the generated parser. It doesn't look for (..) groupings. For example: data Something = Something Int (Maybe String) deriving Show {-! derive : Parse !-} There is nothing in the generated parser to look for parens around the Maybe in case it is a (Just string). Am I missing something?