[Haskell] Parsing Haskell?

Hi Haskellers, I am looking for a parser which can parse Haskell code and build an syntax tree out of it. The syntax tree should be storable in some reasonable file format in order to use it as an input for applications like programm transformation systems. Is there something like this available? The Haskell compiler ghc and the interpreter hugs also have to do parsing, is there a possibility to 'abuse' them as parsers? Greets and thanks, Daniel -- Dipl.-Inf. Daniel Lincke ======================== PhD student PIK - Potsdam Institute for Climate Impact Research PB 60 12 30 14412 Potsdam - Germany Phone: +49 331 288 2425 Email: daniel.lincke@pik-potsdam.de