forked from GitHub/gf-core
e0481e3b8a
Some backwards incompatible changes were made to the PGF file format after the release of GF 3.5. This patch adds a module for reading PGF files in the old format. This means that old PGF files on the grammaticalframework.org server will continue to work after we install the latest version of GF.
226 lines
7.9 KiB
Haskell
226 lines
7.9 KiB
Haskell
module PGF.Binary(putSplitAbs) where
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import PGF.CId
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import PGF.Data
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import PGF.Optimize
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import qualified PGF.OldBinary as Old
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import Data.Binary
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import Data.Binary.Put
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import Data.Binary.Get
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import Data.Array.IArray
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import qualified Data.ByteString as BS
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import qualified Data.Map as Map
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import qualified Data.IntMap as IntMap
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--import qualified Data.Set as Set
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import Control.Monad
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pgfMajorVersion, pgfMinorVersion :: Word16
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version@(pgfMajorVersion, pgfMinorVersion) = (2,0)
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instance Binary PGF where
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put pgf = do putWord16be pgfMajorVersion
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putWord16be pgfMinorVersion
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put (gflags pgf)
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put (absname pgf, abstract pgf)
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put (concretes pgf)
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get = do v1 <- getWord16be
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v2 <- getWord16be
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case (v1,v2) of
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v | v==version -> getPGF'
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| v==Old.version -> Old.getPGF'
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getPGF'=do gflags <- get
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(absname,abstract) <- get
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concretes <- get
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return $ updateProductionIndices $
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(PGF{ gflags=gflags
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, absname=absname, abstract=abstract
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, concretes=concretes
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})
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instance Binary CId where
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put (CId bs) = put bs
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get = liftM CId get
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instance Binary Abstr where
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put abs = put (aflags abs,
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fmap (\(w,x,y,z,_) -> (w,x,y,z)) (funs abs),
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fmap (\(x,y,z,_) -> (x,y,z)) (cats abs))
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get = do aflags <- get
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funs <- get
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cats <- get
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return (Abstr{ aflags=aflags
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, funs=fmap (\(w,x,y,z) -> (w,x,y,z,0)) funs
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, cats=fmap (\(x,y,z) -> (x,y,z,0)) cats
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, code=BS.empty
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})
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putSplitAbs :: PGF -> Put
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putSplitAbs pgf = do
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putWord16be pgfMajorVersion
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putWord16be pgfMinorVersion
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put (Map.insert (mkCId "split") (LStr "true") (gflags pgf))
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put (absname pgf, abstract pgf)
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put [(name,cflags cnc) | (name,cnc) <- Map.toList (concretes pgf)]
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instance Binary Concr where
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put cnc = do put (cflags cnc)
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put (printnames cnc)
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putArray2 (sequences cnc)
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putArray (cncfuns cnc)
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put (lindefs cnc)
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put (linrefs cnc)
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put (productions cnc)
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put (cnccats cnc)
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put (totalCats cnc)
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get = do cflags <- get
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printnames <- get
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sequences <- getArray2
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cncfuns <- getArray
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lindefs <- get
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linrefs <- get
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productions <- get
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cnccats <- get
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totalCats <- get
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return (Concr{ cflags=cflags, printnames=printnames
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, sequences=sequences, cncfuns=cncfuns
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, lindefs=lindefs, linrefs=linrefs
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, productions=productions
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, pproductions = IntMap.empty
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, lproductions = Map.empty
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, lexicon = IntMap.empty
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, cnccats=cnccats, totalCats=totalCats
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})
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instance Binary Expr where
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put (EAbs b x exp) = putWord8 0 >> put (b,x,exp)
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put (EApp e1 e2) = putWord8 1 >> put (e1,e2)
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put (ELit l) = putWord8 2 >> put l
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put (EMeta i) = putWord8 3 >> put i
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put (EFun f) = putWord8 4 >> put f
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put (EVar i) = putWord8 5 >> put i
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put (ETyped e ty) = putWord8 6 >> put (e,ty)
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put (EImplArg e) = putWord8 7 >> put e
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get = do tag <- getWord8
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case tag of
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0 -> liftM3 EAbs get get get
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1 -> liftM2 EApp get get
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2 -> liftM ELit get
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3 -> liftM EMeta get
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4 -> liftM EFun get
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5 -> liftM EVar get
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6 -> liftM2 ETyped get get
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7 -> liftM EImplArg get
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_ -> decodingError
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instance Binary Patt where
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put (PApp f ps) = putWord8 0 >> put (f,ps)
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put (PVar x) = putWord8 1 >> put x
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put (PAs x p) = putWord8 2 >> put (x,p)
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put PWild = putWord8 3
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put (PLit l) = putWord8 4 >> put l
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put (PImplArg p) = putWord8 5 >> put p
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put (PTilde p) = putWord8 6 >> put p
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get = do tag <- getWord8
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case tag of
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0 -> liftM2 PApp get get
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1 -> liftM PVar get
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2 -> liftM2 PAs get get
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3 -> return PWild
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4 -> liftM PLit get
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5 -> liftM PImplArg get
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6 -> liftM PTilde get
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_ -> decodingError
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instance Binary Equation where
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put (Equ ps e) = put (ps,e)
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get = liftM2 Equ get get
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instance Binary Type where
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put (DTyp hypos cat exps) = put (hypos,cat,exps)
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get = liftM3 DTyp get get get
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instance Binary BindType where
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put Explicit = putWord8 0
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put Implicit = putWord8 1
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get = do tag <- getWord8
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case tag of
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0 -> return Explicit
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1 -> return Implicit
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_ -> decodingError
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instance Binary CncFun where
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put (CncFun fun lins) = put fun >> putArray lins
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get = liftM2 CncFun get getArray
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instance Binary CncCat where
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put (CncCat s e labels) = do put (s,e)
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putArray labels
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get = liftM3 CncCat get get getArray
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instance Binary Symbol where
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put (SymCat n l) = putWord8 0 >> put (n,l)
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put (SymLit n l) = putWord8 1 >> put (n,l)
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put (SymVar n l) = putWord8 2 >> put (n,l)
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put (SymKS ts) = putWord8 3 >> put ts
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put (SymKP d vs) = putWord8 4 >> put (d,vs)
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put SymBIND = putWord8 5
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put SymSOFT_BIND = putWord8 6
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put SymNE = putWord8 7
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get = do tag <- getWord8
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case tag of
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0 -> liftM2 SymCat get get
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1 -> liftM2 SymLit get get
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2 -> liftM2 SymVar get get
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3 -> liftM SymKS get
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4 -> liftM2 (\d vs -> SymKP d vs) get get
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5 -> return SymBIND
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6 -> return SymSOFT_BIND
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7 -> return SymNE
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_ -> decodingError
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instance Binary PArg where
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put (PArg hypos fid) = put (map snd hypos,fid)
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get = get >>= \(hypos,fid) -> return (PArg (zip (repeat fidVar) hypos) fid)
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instance Binary Production where
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put (PApply ruleid args) = putWord8 0 >> put (ruleid,args)
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put (PCoerce fcat) = putWord8 1 >> put fcat
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get = do tag <- getWord8
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case tag of
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0 -> liftM2 PApply get get
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1 -> liftM PCoerce get
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_ -> decodingError
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instance Binary Literal where
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put (LStr s) = putWord8 0 >> put s
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put (LInt i) = putWord8 1 >> put i
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put (LFlt d) = putWord8 2 >> put d
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get = do tag <- getWord8
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case tag of
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0 -> liftM LStr get
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1 -> liftM LInt get
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2 -> liftM LFlt get
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_ -> decodingError
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putArray :: (Binary e, IArray a e) => a Int e -> Put
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putArray a = do put (rangeSize $ bounds a) -- write the length
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mapM_ put (elems a) -- now the elems.
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getArray :: (Binary e, IArray a e) => Get (a Int e)
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getArray = do n <- get -- read the length
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xs <- replicateM n get -- now the elems.
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return (listArray (0,n-1) xs)
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putArray2 :: (Binary e, IArray a1 (a2 Int e), IArray a2 e) => a1 Int (a2 Int e) -> Put
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putArray2 a = do put (rangeSize $ bounds a) -- write the length
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mapM_ putArray (elems a) -- now the elems.
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getArray2 :: (Binary e, IArray a1 (a2 Int e), IArray a2 e) => Get (a1 Int (a2 Int e))
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getArray2 = do n <- get -- read the length
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xs <- replicateM n getArray -- now the elems.
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return (listArray (0,n-1) xs)
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decodingError = fail "This file was compiled with different version of GF"
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