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change the PGF.Data.Exp type

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krasimir
2008-05-30 09:10:28 +00:00
parent 3d2ce9216d
commit 587eed4eaa
11 changed files with 118 additions and 145 deletions
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43
src-3.0/GF/Command/PPrTree.hs
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@@ -1,39 +1,26 @@
module GF.Command.PPrTree (pTree, prExp, tree2exp) where
module GF.Command.PPrTree (tree2exp, exp2tree) where
import PGF.CId
import PGF.Data
import PGF.Macros
import qualified GF.Command.ParGFShell as P
import GF.Command.PrintGFShell
import GF.Command.AbsGFShell
import GF.Data.ErrM
pTree :: String -> Exp
pTree s = case P.pTree (P.myLexer s) of
Ok t -> tree2exp t
Bad s -> error s
tree2exp t = case t of
TApp f ts -> tree (AC (i2i f)) (map tree2exp ts)
TAbs xs t -> DTr (map i2i xs ++ ys) f ts where DTr ys f ts = tree2exp t
TId c -> tree (AC (i2i c)) []
TInt i -> tree (AI i) []
TStr s -> tree (AS s) []
TFloat d -> tree (AF d) []
TApp f ts -> EApp (i2i f) (map tree2exp ts)
TAbs xs t -> EAbs (map i2i xs) (tree2exp t)
TId c -> EApp (i2i c) []
TInt i -> EInt i
TStr s -> EStr s
TFloat d -> EFloat d
where
i2i (Ident s) = mkCId s
prExp :: Exp -> String
prExp = printTree . exp2tree
exp2tree (DTr xs at ts) = tabs (map i4i xs) (tapp at (map exp2tree ts))
exp2tree t = case t of
(EAbs xs e) -> TAbs (map i4i xs) (exp2tree e)
(EApp f []) -> TId (i4i f)
(EApp f es) -> TApp (i4i f) (map exp2tree es)
(EInt i) -> TInt i
(EStr i) -> TStr i
(EFloat i) -> TFloat i
(EMeta i) -> TId (Ident "?") ----
where
tabs [] t = t
tabs ys t = TAbs ys t
tapp (AC f) [] = TId (i4i f)
tapp (AC f) vs = TApp (i4i f) vs
tapp (AI i) [] = TInt i
tapp (AS i) [] = TStr i
tapp (AF i) [] = TFloat i
tapp (AM i) [] = TId (Ident "?") ----
i4i s = Ident (prCId s)