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https://github.com/GrammaticalFramework/gf-core.git
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173 lines
5.3 KiB
Haskell
173 lines
5.3 KiB
Haskell
----------------------------------------------------------------------
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-- |
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-- Module : MkGFC
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-- Maintainer : AR
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/04/21 16:21:26 $
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-- > CVS $Author: bringert $
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-- > CVS $Revision: 1.12 $
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--
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-- (Description of the module)
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-----------------------------------------------------------------------------
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module GF.Canon.MkGFC (prCanonModInfo, prCanon, prCanonMGr,
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canon2grammar, grammar2canon,
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info2mod,
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trExp, rtExp, rtQIdent) where
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import GF.Canon.GFC
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import GF.Canon.AbsGFC
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import qualified GF.Grammar.Abstract as A
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import GF.Grammar.PrGrammar
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import GF.Infra.Ident
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import GF.Data.Operations
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import qualified GF.Infra.Modules as M
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prCanonModInfo :: CanonModule -> String
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prCanonModInfo = prt . info2mod
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prCanon :: CanonGrammar -> String
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prCanon = unlines . map prCanonModInfo . M.modules
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prCanonMGr :: CanonGrammar -> String
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prCanonMGr g = header ++++ prCanon g where
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header = case M.greatestAbstract g of
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Just a -> prt (MGr (M.allConcretes g a) a [])
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_ -> []
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canon2grammar :: Canon -> CanonGrammar
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canon2grammar (MGr _ _ modules) = canon2grammar (Gr modules) ---- ignoring the header
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canon2grammar (Gr modules) = M.MGrammar $ map mod2info modules where
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mod2info m = case m of
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Mod mt e os flags defs ->
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let defs' = buildTree $ map def2info defs
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(a,mt') = case mt of
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MTAbs a -> (a,M.MTAbstract)
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MTRes a -> (a,M.MTResource)
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MTCnc a x -> (a,M.MTConcrete x)
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MTTrans a x y -> (a,M.MTTransfer (M.oSimple x) (M.oSimple y))
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in (a,M.ModMod (M.Module mt' M.MSComplete flags (ee e) (oo os) defs'))
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ee (Ext m) = m
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ee _ = []
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oo (Opens ms) = map M.oSimple ms
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oo _ = []
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grammar2canon :: CanonGrammar -> Canon
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grammar2canon (M.MGrammar modules) = Gr $ map info2mod modules
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info2mod :: (Ident, M.ModInfo Ident Flag Info) -> Module
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info2mod m = case m of
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(a, M.ModMod (M.Module mt _ flags me os defs)) ->
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let defs' = map info2def $ tree2list defs
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mt' = case mt of
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M.MTAbstract -> MTAbs a
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M.MTResource -> MTRes a
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M.MTConcrete x -> MTCnc a x
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M.MTTransfer (M.OSimple _ x) (M.OSimple _ y) -> MTTrans a x y
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in
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Mod mt' (gfcE me) (gfcO os) flags defs'
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where
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gfcE = ifNull NoExt Ext
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gfcO os = if null os then NoOpens else Opens [m | M.OSimple _ m <- os]
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-- these translations are meant to be trivial
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defs2infos = sorted2tree . map def2info
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def2info d = case d of
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AbsDCat c cont fs -> (c,AbsCat (trCont cont) (trFs fs))
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AbsDFun c ty df -> (c,AbsFun (trExp ty) (trExp df))
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AbsDTrans c t -> (c,AbsTrans (trExp t))
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ResDPar c df -> (c,ResPar df)
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ResDOper c ty df -> (c,ResOper ty df)
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CncDCat c ty df pr -> (c, CncCat ty df pr)
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CncDFun f c xs li pr -> (f, CncFun c xs li pr)
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AnyDInd c b m -> (c, AnyInd (b == Canon) m)
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-- from file to internal
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trCont cont = [(x,trExp t) | Decl x t <- cont]
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trFs = map trQIdent
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trExp :: Exp -> A.Term
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trExp t = case t of
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EProd x a b -> A.Prod x (trExp a) (trExp b)
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EAbs x b -> A.Abs x (trExp b)
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EApp f a -> A.App (trExp f) (trExp a)
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EEq eqs -> A.Eqs [(map trPt ps, trExp e) | Equ ps e <- eqs]
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EData -> A.EData
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_ -> trAt t
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where
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trAt (EAtom t) = case t of
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AC c -> (uncurry A.Q) $ trQIdent c
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AD c -> (uncurry A.QC) $ trQIdent c
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AV v -> A.Vr v
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AM i -> A.Meta $ A.MetaSymb $ fromInteger i
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AT s -> A.Sort $ prt s
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AS s -> A.K s
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AI i -> A.EInt $ fromInteger i
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trPt p = case p of
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APC mc ps -> let (m,c) = trQIdent mc in A.PP m c (map trPt ps)
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APV x -> A.PV x
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APS s -> A.PString s
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API i -> A.PInt $ fromInteger i
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APW -> A.PW
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trQIdent (CIQ m c) = (m,c)
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-- from internal to file
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infos2defs = map info2def . tree2list
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info2def d = case d of
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(c,AbsCat cont fs) -> AbsDCat c (rtCont cont) (rtFs fs)
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(c,AbsFun ty df) -> AbsDFun c (rtExp ty) (rtExp df)
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(c,AbsTrans t) -> AbsDTrans c (rtExp t)
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(c,ResPar df) -> ResDPar c df
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(c,ResOper ty df) -> ResDOper c ty df
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(c,CncCat ty df pr) -> CncDCat c ty df pr
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(f,CncFun c xs li pr) -> CncDFun f c xs li pr
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(c,AnyInd b m) -> AnyDInd c (if b then Canon else NonCan) m
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rtCont cont = [Decl (rtIdent x) (rtExp t) | (x,t) <- cont]
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rtFs = map rtQIdent
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rtExp :: A.Term -> Exp
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rtExp t = case t of
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A.Prod x a b -> EProd (rtIdent x) (rtExp a) (rtExp b)
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A.Abs x b -> EAbs (rtIdent x) (rtExp b)
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A.App f a -> EApp (rtExp f) (rtExp a)
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A.Eqs eqs -> EEq [Equ (map rtPt ps) (rtExp e) | (ps,e) <- eqs]
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A.EData -> EData
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_ -> EAtom $ rtAt t
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where
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rtAt t = case t of
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A.Q m c -> AC $ rtQIdent (m,c)
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A.QC m c -> AD $ rtQIdent (m,c)
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A.Vr v -> AV v
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A.Meta i -> AM $ toInteger $ A.metaSymbInt i
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A.Sort "Type" -> AT SType
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A.K s -> AS s
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A.EInt i -> AI $ toInteger i
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_ -> error $ "MkGFC.rt not defined for" +++ show t
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rtPt p = case p of
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A.PP m c ps -> APC (rtQIdent (m,c)) (map rtPt ps)
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A.PV x -> APV x
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A.PString s -> APS s
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A.PInt i -> API $ toInteger i
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A.PW -> APW
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_ -> error $ "MkGFC.rt not defined for" +++ show p
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rtQIdent :: (Ident, Ident) -> CIdent
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rtQIdent (m,c) = CIQ (rtIdent m) (rtIdent c)
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rtIdent x
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| isWildIdent x = identC "h_" --- needed in declarations
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| otherwise = identC $ prt x ---
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