[Haskell] documentation of Language.Haskell.Syntax

I'm searching for more detailed information about Language.Haskell.Syntax than the one provided by the Haddock documentation of the Hierarchical Libraries. I'm doing a tool that pick up code represented in the Haskell Syntax and i need to know the semantics of a lot of Construtors of the Haskell Syntax. If someone know where i can find that documentation please email me. thankfully José Miguel Vilaça mathematics and computer sciences student at University of Minho in Portugal