{-|

Module : $Header$

Copyright : (c) Sonja Groening, Christian Maeder, Uni Bremen 2002-2004

License : similar to LGPL, see HetCATS/LICENSE.txt or LIZENZ.txt

Maintainer : maeder@tzi.de

Stability : provisional

Portability : portable

Wrapper for Haskell parsing.

Parses Haskell declarations (not a whole module), for use

in heterogeneous specifications

-}

module Hatchet.HatParser where

import Haskell.Wrapper

import Haskell.Hatchet.HsSyn

import Haskell.Hatchet.HsParser as HatParser

import Haskell.Hatchet.HsPretty as HatPretty

import Haskell.Hatchet.HsParseMonad

import Text.ParserCombinators.Parsec

import Common.PrettyPrint

import Common.Lib.Pretty

instance PrettyPrint HsDecls where

printText0 _ (HsDecls hsDecls) =

vcat (map (text . ((++) "\n") . HatPretty.render . ppHsDecl) hsDecls)

data HsDecls = HsDecls [HsDecl] deriving (Eq, Show)

hatParser :: GenParser Char st HsDecls

hatParser = do p <- getPosition

s <- hStuff

let (l, c) = (sourceLine p, sourceColumn p)

r = HatParser.parse s

(SrcLoc l 0) c []

case r of

Ok _ (HsModule _ _ _ hsDecls) ->

return (HsDecls hsDecls)

Failed msg -> unexpected msg