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|
----------------------------------------------------------------------
-- |
-- Module : PrExp
-- Maintainer : AR
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date: 2005/04/21 16:21:28 $
-- > CVS $Author: bringert $
-- > CVS $Revision: 1.5 $
--
-- print trees without qualifications
-----------------------------------------------------------------------------
module GF.Canon.PrExp (prExp) where
import GF.Canon.AbsGFC
import GF.Canon.GFC
import GF.Data.Operations
prExp :: Exp -> String
prExp e = case e of
EApp f a -> pr1 f +++ pr2 a
EAbsR x b -> "\\" ++ prtt x +++ "->" +++ prExp b
EAbs x _ b -> prExp $ EAbsR x b
EProd x a b -> "(\\" ++ prtt x +++ ":" +++ prExp a ++ ")" +++ "->" +++ prExp b
EAtomR a -> prAtom a
EAtom a _ -> prAtom a
_ -> prtt e
where
pr1 e = case e of
EAbsR _ _ -> prParenth $ prExp e
EAbs _ _ _ -> prParenth $ prExp e
EProd _ _ _ -> prParenth $ prExp e
_ -> prExp e
pr2 e = case e of
EApp _ _ -> prParenth $ prExp e
_ -> pr1 e
prAtom a = case a of
AC c -> prCIdent c
AD c -> prCIdent c
_ -> prtt a
prCIdent (CIQ _ c) = prtt c
|
