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authoraarne <aarne@cs.chalmers.se>2008-06-25 16:54:35 +0000
committeraarne <aarne@cs.chalmers.se>2008-06-25 16:54:35 +0000
commite9e80fc389365e24d4300d7d5390c7d833a96c50 (patch)
treef0b58473adaa670bd8fc52ada419d8cad470ee03 /src-3.0/PGF/Raw/Convert.hs
parentb96b36f43de3e2f8b58d5f539daa6f6d47f25870 (diff)
changed names of resource-1.3; added a note on homepage on release
Diffstat (limited to 'src-3.0/PGF/Raw/Convert.hs')
-rw-r--r--src-3.0/PGF/Raw/Convert.hs248
1 files changed, 0 insertions, 248 deletions
diff --git a/src-3.0/PGF/Raw/Convert.hs b/src-3.0/PGF/Raw/Convert.hs
deleted file mode 100644
index af3708eb5..000000000
--- a/src-3.0/PGF/Raw/Convert.hs
+++ /dev/null
@@ -1,248 +0,0 @@
-module PGF.Raw.Convert (toPGF,fromPGF) where
-
-import PGF.CId
-import PGF.Data
-import PGF.Raw.Abstract
-import PGF.BuildParser (buildParserInfo)
-import PGF.Parsing.FCFG.Utilities
-
-import qualified Data.Array as Array
-import qualified Data.Map as Map
-
-pgfMajorVersion, pgfMinorVersion :: Integer
-(pgfMajorVersion, pgfMinorVersion) = (1,0)
-
--- convert parsed grammar to internal PGF
-
-toPGF :: Grammar -> PGF
-toPGF (Grm [
- App "pgf" (AInt v1 : AInt v2 : App a []:cs),
- App "flags" gfs,
- ab@(
- App "abstract" [
- App "fun" fs,
- App "cat" cts
- ]),
- App "concrete" ccs
- ]) = PGF {
- absname = mkCId a,
- cncnames = [mkCId c | App c [] <- cs],
- gflags = Map.fromAscList [(mkCId f,v) | App f [AStr v] <- gfs],
- abstract =
- let
- aflags = Map.fromAscList [(mkCId f,v) | App f [AStr v] <- gfs]
- lfuns = [(mkCId f,(toType typ,toExp def)) | App f [typ, def] <- fs]
- funs = Map.fromAscList lfuns
- lcats = [(mkCId c, Prelude.map toHypo hyps) | App c hyps <- cts]
- cats = Map.fromAscList lcats
- catfuns = Map.fromAscList
- [(cat,[f | (f, (DTyp _ c _,_)) <- lfuns, c==cat]) | (cat,_) <- lcats]
- in Abstr aflags funs cats catfuns,
- concretes = Map.fromAscList [(mkCId lang, toConcr ts) | App lang ts <- ccs]
- }
- where
-
-toConcr :: [RExp] -> Concr
-toConcr = foldl add (Concr {
- cflags = Map.empty,
- lins = Map.empty,
- opers = Map.empty,
- lincats = Map.empty,
- lindefs = Map.empty,
- printnames = Map.empty,
- paramlincats = Map.empty,
- parser = Nothing
- })
- where
- add :: Concr -> RExp -> Concr
- add cnc (App "flags" ts) = cnc { cflags = Map.fromAscList [(mkCId f,v) | App f [AStr v] <- ts] }
- add cnc (App "lin" ts) = cnc { lins = mkTermMap ts }
- add cnc (App "oper" ts) = cnc { opers = mkTermMap ts }
- add cnc (App "lincat" ts) = cnc { lincats = mkTermMap ts }
- add cnc (App "lindef" ts) = cnc { lindefs = mkTermMap ts }
- add cnc (App "printname" ts) = cnc { printnames = mkTermMap ts }
- add cnc (App "param" ts) = cnc { paramlincats = mkTermMap ts }
- add cnc (App "parser" ts) = cnc { parser = Just (toPInfo ts) }
-
-toPInfo :: [RExp] -> ParserInfo
-toPInfo [App "rules" rs, App "startupcats" cs] = buildParserInfo (rules, cats)
- where
- rules = map toFRule rs
- cats = Map.fromList [(mkCId c, map expToInt fs) | App c fs <- cs]
-
- toFRule :: RExp -> FRule
- toFRule (App "rule"
- [n,
- App "cats" (rt:at),
- App "R" ls]) = FRule fun prof args res lins
- where
- (fun,prof) = toFName n
- args = map expToInt at
- res = expToInt rt
- lins = mkArray [mkArray [toSymbol s | s <- l] | App "S" l <- ls]
-
-toFName :: RExp -> (CId,[Profile])
-toFName (App "_A" [x]) = (wildCId, [[expToInt x]])
-toFName (App f ts) = (mkCId f, map toProfile ts)
- where
- toProfile :: RExp -> Profile
- toProfile AMet = []
- toProfile (App "_A" [t]) = [expToInt t]
- toProfile (App "_U" ts) = [expToInt t | App "_A" [t] <- ts]
-
-toSymbol :: RExp -> FSymbol
-toSymbol (App "P" [n,l]) = FSymCat (expToInt l) (expToInt n)
-toSymbol (AStr t) = FSymTok t
-
-toType :: RExp -> Type
-toType e = case e of
- App cat [App "H" hypos, App "X" exps] ->
- DTyp (map toHypo hypos) (mkCId cat) (map toExp exps)
- _ -> error $ "type " ++ show e
-
-toHypo :: RExp -> Hypo
-toHypo e = case e of
- App x [typ] -> Hyp (mkCId x) (toType typ)
- _ -> error $ "hypo " ++ show e
-
-toExp :: RExp -> Expr
-toExp e = case e of
- App "Abs" [App x [], exp] -> EAbs (mkCId x) (toExp exp)
- App "App" [e1,e2] -> EApp (toExp e1) (toExp e2)
- App "Eq" eqs -> EEq [Equ (map toExp ps) (toExp v) | App "E" (v:ps) <- eqs]
- App "Var" [App i []] -> EVar (mkCId i)
- AMet -> EMeta 0
- AInt i -> ELit (LInt i)
- AFlt i -> ELit (LFlt i)
- AStr i -> ELit (LStr i)
- _ -> error $ "exp " ++ show e
-
-toTerm :: RExp -> Term
-toTerm e = case e of
- App "R" es -> R (map toTerm es)
- App "S" es -> S (map toTerm es)
- App "FV" es -> FV (map toTerm es)
- App "P" [e,v] -> P (toTerm e) (toTerm v)
- App "W" [AStr s,v] -> W s (toTerm v)
- App "A" [AInt i] -> V (fromInteger i)
- App f [] -> F (mkCId f)
- AInt i -> C (fromInteger i)
- AMet -> TM "?"
- AStr s -> K (KS s) ----
- _ -> error $ "term " ++ show e
-
-------------------------------
---- from internal to parser --
-------------------------------
-
-fromPGF :: PGF -> Grammar
-fromPGF pgf0 = Grm [
- App "pgf" (AInt pgfMajorVersion:AInt pgfMinorVersion
- : App (prCId (absname pgf)) [] : map (flip App [] . prCId) (cncnames pgf)),
- App "flags" [App (prCId f) [AStr v] | (f,v) <- Map.toList (gflags pgf `Map.union` aflags apgf)],
- App "abstract" [
- App "fun" [App (prCId f) [fromType t,fromExp d] | (f,(t,d)) <- Map.toList (funs apgf)],
- App "cat" [App (prCId f) (map fromHypo hs) | (f,hs) <- Map.toList (cats apgf)]
- ],
- App "concrete" [App (prCId lang) (fromConcrete c) | (lang,c) <- Map.toList (concretes pgf)]
- ]
- where
- pgf = utf8GFCC pgf0
- apgf = abstract pgf
- fromConcrete cnc = [
- App "flags" [App (prCId f) [AStr v] | (f,v) <- Map.toList (cflags cnc)],
- App "lin" [App (prCId f) [fromTerm v] | (f,v) <- Map.toList (lins cnc)],
- App "oper" [App (prCId f) [fromTerm v] | (f,v) <- Map.toList (opers cnc)],
- App "lincat" [App (prCId f) [fromTerm v] | (f,v) <- Map.toList (lincats cnc)],
- App "lindef" [App (prCId f) [fromTerm v] | (f,v) <- Map.toList (lindefs cnc)],
- App "printname" [App (prCId f) [fromTerm v] | (f,v) <- Map.toList (printnames cnc)],
- App "param" [App (prCId f) [fromTerm v] | (f,v) <- Map.toList (paramlincats cnc)]
- ] ++ maybe [] (\p -> [fromPInfo p]) (parser cnc)
-
-fromType :: Type -> RExp
-fromType e = case e of
- DTyp hypos cat exps ->
- App (prCId cat) [
- App "H" (map fromHypo hypos),
- App "X" (map fromExp exps)]
-
-fromHypo :: Hypo -> RExp
-fromHypo e = case e of
- Hyp x typ -> App (prCId x) [fromType typ]
-
-fromExp :: Expr -> RExp
-fromExp e = case e of
- EAbs x exp -> App "Abs" [App (prCId x) [], fromExp exp]
- EApp e1 e2 -> App "App" [fromExp e1, fromExp e2]
- EVar x -> App "Var" [App (prCId x) []]
- ELit (LStr s) -> AStr s
- ELit (LFlt d) -> AFlt d
- ELit (LInt i) -> AInt (toInteger i)
- EMeta _ -> AMet ----
- EEq eqs ->
- App "Eq" [App "E" (map fromExp (v:ps)) | Equ ps v <- eqs]
-
-fromTerm :: Term -> RExp
-fromTerm e = case e of
- R es -> App "R" (map fromTerm es)
- S es -> App "S" (map fromTerm es)
- FV es -> App "FV" (map fromTerm es)
- P e v -> App "P" [fromTerm e, fromTerm v]
- W s v -> App "W" [AStr s, fromTerm v]
- C i -> AInt (toInteger i)
- TM _ -> AMet
- F f -> App (prCId f) []
- V i -> App "A" [AInt (toInteger i)]
- K (KS s) -> AStr s ----
- K (KP d vs) -> App "FV" (str d : [str v | Alt v _ <- vs]) ----
- where
- str v = App "S" (map AStr v)
-
--- ** Parsing info
-
-fromPInfo :: ParserInfo -> RExp
-fromPInfo p = App "parser" [
- App "rules" [fromFRule rule | rule <- Array.elems (allRules p)],
- App "startupcats" [App (prCId f) (map intToExp cs) | (f,cs) <- Map.toList (startupCats p)]
- ]
-
-fromFRule :: FRule -> RExp
-fromFRule (FRule fun prof args res lins) =
- App "rule" [fromFName (fun,prof),
- App "cats" (intToExp res:map intToExp args),
- App "R" [App "S" [fromSymbol s | s <- Array.elems l] | l <- Array.elems lins]
- ]
-
-fromFName :: (CId,[Profile]) -> RExp
-fromFName (f,ps) | f == wildCId = fromProfile (head ps)
- | otherwise = App (prCId f) (map fromProfile ps)
- where
- fromProfile :: Profile -> RExp
- fromProfile [] = AMet
- fromProfile [x] = daughter x
- fromProfile args = App "_U" (map daughter args)
-
- daughter n = App "_A" [intToExp n]
-
-fromSymbol :: FSymbol -> RExp
-fromSymbol (FSymCat l n) = App "P" [intToExp n, intToExp l]
-fromSymbol (FSymTok t) = AStr t
-
--- ** Utilities
-
-mkTermMap :: [RExp] -> Map.Map CId Term
-mkTermMap ts = Map.fromAscList [(mkCId f,toTerm v) | App f [v] <- ts]
-
-mkArray :: [a] -> Array.Array Int a
-mkArray xs = Array.listArray (0, length xs - 1) xs
-
-expToInt :: Integral a => RExp -> a
-expToInt (App "neg" [AInt i]) = fromIntegral (negate i)
-expToInt (AInt i) = fromIntegral i
-
-expToStr :: RExp -> String
-expToStr (AStr s) = s
-
-intToExp :: Integral a => a -> RExp
-intToExp x | x < 0 = App "neg" [AInt (fromIntegral (negate x))]
- | otherwise = AInt (fromIntegral x)