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FCFG format in BNFC
This commit is contained in:
aarne
82
src/GF/FCFG/AbsFCFG.hs
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82
src/GF/FCFG/AbsFCFG.hs
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@@ -0,0 +1,82 @@
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module GF.FCFG.AbsFCFG where
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-- Haskell module generated by the BNF converter
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newtype Ident = Ident String deriving (Eq,Ord,Show)
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data FGrammar =
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FGr [FRule]
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deriving (Eq,Ord,Show)
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data FRule =
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FR Abstract [[FSymbol]]
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deriving (Eq,Ord,Show)
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data Abstract =
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Abs FCat [FCat] Name
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deriving (Eq,Ord,Show)
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data FSymbol =
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FSymCat FCat Integer Integer
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| FSymTok String
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deriving (Eq,Ord,Show)
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data FCat =
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FC Integer Ident [[PathEl]] [PathTerm]
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deriving (Eq,Ord,Show)
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data PathEl =
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PLabel Label
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| PTerm Term
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deriving (Eq,Ord,Show)
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data PathTerm =
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PtT [PathEl] Term
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deriving (Eq,Ord,Show)
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data Name =
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Nm Ident [Profile]
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deriving (Eq,Ord,Show)
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data Profile =
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Unify [Integer]
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| Const Forest
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deriving (Eq,Ord,Show)
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data Forest =
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FMeta
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| FNode Ident [[Forest]]
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| FString String
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| FInt Integer
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| FFloat Double
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deriving (Eq,Ord,Show)
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data Term =
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Arg Integer Ident [PathEl]
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| Constr CIdent [Term]
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| Rec [Assoc]
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| Proj Term Label
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| Tbl [Case]
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| Select Term Term
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| Vars [Term]
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| Concat Term Term
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| Tok String
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| Empty
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deriving (Eq,Ord,Show)
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data Case =
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Cas Term Term
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deriving (Eq,Ord,Show)
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data Assoc =
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Ass Label Term
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deriving (Eq,Ord,Show)
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data Label =
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L Ident
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| LV Integer
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deriving (Eq,Ord,Show)
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data CIdent =
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CIQ Ident Ident
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deriving (Eq,Ord,Show)
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131
src/GF/FCFG/FCFG.cf
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131
src/GF/FCFG/FCFG.cf
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@@ -0,0 +1,131 @@
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-- a portable format for FCFG (Peter Ljunglöf's MCFG modified by Krasimir Anglelov)
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-- Aarne Ranta September 2006
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FGr. FGrammar ::= [FRule] ;
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FR. FRule ::= Abstract ":=" [[FSymbol]] ;
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Abs. Abstract ::= FCat "->" [FCat] "." Name ;
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FSymCat. FSymbol ::= "(" FCat Integer Integer ")" ;
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FSymTok. FSymbol ::= String ;
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FC. FCat ::= "(" Integer Ident "[" [[PathEl]] "]" "[" [PathTerm] "]" ")" ;
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PLabel. PathEl ::= Label ;
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PTerm. PathEl ::= Term ;
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PtT. PathTerm ::= "(" [PathEl] "," Term ")" ;
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Nm. Name ::= Ident "[" [Profile] "]" ;
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Unify. Profile ::= "[" [Integer] "]" ;
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Const. Profile ::= Forest ;
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FMeta. Forest ::= "?" ;
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FNode. Forest ::= "(" Ident [[Forest]] ")" ;
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FString. Forest ::= String ;
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FInt. Forest ::= Integer ;
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FFloat. Forest ::= Double ;
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Arg. Term ::= "(" Integer Ident [PathEl] ")" ;
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Constr. Term ::= "(" CIdent "-" [Term] ")" ;
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Rec. Term ::= "[" [Assoc] "]" ;
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Proj. Term ::= "(" Term "." Label ")" ;
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Tbl. Term ::= "[-" [Case] "-]" ;
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Select. Term ::= "(" Term "!" Term ")" ;
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Vars. Term ::= "[|" [Term] "|]" ;
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Concat. Term ::= "(" Term "++" Term ")" ;
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Tok. Term ::= String ;
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Empty. Term ::= "(" ")" ;
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Cas. Case ::= Term "=>" Term ;
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Ass. Assoc ::= Label "=" Term ;
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L. Label ::= Ident ;
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LV. Label ::= "$" Integer ;
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CIQ. CIdent ::= Ident "." Ident ;
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terminator FRule ";" ;
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terminator [FSymbol] "|" ;
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terminator FSymbol "" ;
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terminator FCat "" ;
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terminator [Forest] "," ;
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terminator Forest "" ;
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terminator PathTerm "" ;
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terminator Profile "" ;
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terminator Integer "" ;
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terminator Term "," ;
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terminator Assoc "," ;
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terminator Case "," ;
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terminator [PathEl] "," ;
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terminator PathEl "." ;
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-- type FGrammar = [FRule]
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-- data FRule = FRule Abstract (Array Int (Array Int FSymbol))
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-- data Abstract = Abs FCat [FCat] Name
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-- data FSymbol = FSymCat FCat Int Int
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-- | FSymTok String
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-- data FCat = FCat Int Ident [Path] [(Path,Term)]
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-- newtype Path = Path [Either Label Term]
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-- type Name = Name Ident [Profile]
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-- type Label = AbsGFC.Label
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-- data Profile = Unify [Int] | Constant SyntaxForest
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-- SyntaxForest = FMeta
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-- | FNode Ident [[SyntaxForest]]
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-- | FString String
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-- | FInt Integer
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-- | FFloat Double
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{-
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data Term
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= Arg Int Ident Path -- ^ argument variable, the 'Path' is a path
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-- pointing into the term
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| Constr :^ [Term] -- ^ constructor
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| Rec [(Label, Term)] -- ^ record
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| Term :. Label -- ^ record projection
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| Tbl [(Term, Term)] -- ^ table of patterns\/terms
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| Term :! Term -- ^ table selection
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| Variants [Term] -- ^ variants
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| Term :++ Term -- ^ concatenation
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| Token String -- ^ single token
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| Empty -- ^ empty string
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-}
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-- type FGrammar = FCFGrammar FCat Name Token
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-- type FRule = FCFRule FCat Name Token
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-- type FCFGrammar cat name tok = [FCFRule cat name tok]
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-- data FCFRule cat name tok =
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-- FRule (Abstract cat name) (Array FLabel (Array FPointPos (FSymbol cat tok)))
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-- data Abstract cat name = Abs cat [cat] name
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-- data FSymbol cat tok = FSymCat cat FLabel Int | FSymTok tok
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-- type FLabel = Int
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-- type FPointPos = Int
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-- data FCat = FCat Int SCat [SPath] [(SPath,STerm)]
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-- newtype Path c t = Path [Either Label (Term c t)]
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-- type SCat = Ident.Ident
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-- type Fun = Ident.Ident
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-- type SPath = Path SCat Token
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-- type STerm = Term SCat Token
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-- type Name = NameProfile Fun
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-- data NameProfile a = Name a [Profile (SyntaxForest a)]
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-- SyntaxForest n = FMeta
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-- | FNode n [[SyntaxForest n]]
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-- | FString String
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-- | FInt Integer
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-- | FFloat Double
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-- type Token = String
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-- type Label = AbsGFC.Label
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-- data Profile a = Unify [Int] | Constant a
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-- type Constr = AbsGFC.CIdent
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{-
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data Term c t
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= Arg Int c (Path c t) -- ^ argument variable, the 'Path' is a path
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-- pointing into the term
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| Constr :^ [Term c t] -- ^ constructor
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| Rec [(Label, Term c t)] -- ^ record
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| Term c t :. Label -- ^ record projection
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| Tbl [(Term c t, Term c t)] -- ^ table of patterns\/terms
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| Term c t :! Term c t -- ^ table selection
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| Variants [Term c t] -- ^ variants
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| Term c t :++ Term c t -- ^ concatenation
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| Token t -- ^ single token
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| Empty -- ^ empty string
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-}
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210
src/GF/FCFG/PrintFCFG.hs
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210
src/GF/FCFG/PrintFCFG.hs
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@@ -0,0 +1,210 @@
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{-# OPTIONS -fno-warn-incomplete-patterns #-}
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module GF.FCFG.PrintFCFG where
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-- pretty-printer generated by the BNF converter
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import GF.FCFG.AbsFCFG
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import Data.Char
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-- the top-level printing method
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printTree :: Print a => a -> String
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printTree = render . prt 0
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type Doc = [ShowS] -> [ShowS]
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doc :: ShowS -> Doc
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doc = (:)
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render :: Doc -> String
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render d = rend 0 (map ($ "") $ d []) "" where
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rend i ss = case ss of
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"[" :ts -> showChar '[' . rend i ts
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"(" :ts -> showChar '(' . rend i ts
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"{" :ts -> showChar '{' . new (i+1) . rend (i+1) ts
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"}" : ";":ts -> new (i-1) . space "}" . showChar ';' . new (i-1) . rend (i-1) ts
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"}" :ts -> new (i-1) . showChar '}' . new (i-1) . rend (i-1) ts
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";" :ts -> showChar ';' . new i . rend i ts
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t : "," :ts -> showString t . space "," . rend i ts
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t : ")" :ts -> showString t . showChar ')' . rend i ts
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t : "]" :ts -> showString t . showChar ']' . rend i ts
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t :ts -> space t . rend i ts
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_ -> id
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new i = showChar '\n' . replicateS (2*i) (showChar ' ') . dropWhile isSpace
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space t = showString t . (\s -> if null s then "" else (' ':s))
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parenth :: Doc -> Doc
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parenth ss = doc (showChar '(') . ss . doc (showChar ')')
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concatS :: [ShowS] -> ShowS
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concatS = foldr (.) id
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concatD :: [Doc] -> Doc
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concatD = foldr (.) id
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replicateS :: Int -> ShowS -> ShowS
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replicateS n f = concatS (replicate n f)
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-- the printer class does the job
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class Print a where
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prt :: Int -> a -> Doc
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prtList :: [a] -> Doc
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prtList = concatD . map (prt 0)
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instance Print a => Print [a] where
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prt _ = prtList
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instance Print Char where
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prt _ s = doc (showChar '\'' . mkEsc '\'' s . showChar '\'')
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prtList s = doc (showChar '"' . concatS (map (mkEsc '"') s) . showChar '"')
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mkEsc :: Char -> Char -> ShowS
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mkEsc q s = case s of
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_ | s == q -> showChar '\\' . showChar s
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'\\'-> showString "\\\\"
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'\n' -> showString "\\n"
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'\t' -> showString "\\t"
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_ -> showChar s
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prPrec :: Int -> Int -> Doc -> Doc
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prPrec i j = if j<i then parenth else id
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instance Print Integer where
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prt _ x = doc (shows x)
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , prt 0 xs])
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instance Print Double where
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prt _ x = doc (shows x)
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instance Print Ident where
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prt _ (Ident i) = doc (showString i)
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instance Print FGrammar where
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prt i e = case e of
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FGr frules -> prPrec i 0 (concatD [prt 0 frules])
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instance Print FRule where
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prt i e = case e of
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FR abstract fsymbolss -> prPrec i 0 (concatD [prt 0 abstract , doc (showString ":=") , prt 0 fsymbolss])
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
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instance Print Abstract where
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prt i e = case e of
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Abs fcat fcats name -> prPrec i 0 (concatD [prt 0 fcat , doc (showString "->") , prt 0 fcats , doc (showString ".") , prt 0 name])
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instance Print FSymbol where
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prt i e = case e of
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FSymCat fcat n0 n -> prPrec i 0 (concatD [doc (showString "(") , prt 0 fcat , prt 0 n0 , prt 0 n , doc (showString ")")])
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FSymTok str -> prPrec i 0 (concatD [prt 0 str])
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , prt 0 xs])
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instance Print FCat where
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prt i e = case e of
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FC n id pathelss pathterms -> prPrec i 0 (concatD [doc (showString "(") , prt 0 n , prt 0 id , doc (showString "[") , prt 0 pathelss , doc (showString "]") , doc (showString "[") , prt 0 pathterms , doc (showString "]") , doc (showString ")")])
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , prt 0 xs])
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instance Print PathEl where
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prt i e = case e of
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PLabel label -> prPrec i 0 (concatD [prt 0 label])
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PTerm term -> prPrec i 0 (concatD [prt 0 term])
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , doc (showString ".") , prt 0 xs])
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instance Print PathTerm where
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prt i e = case e of
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PtT pathels term -> prPrec i 0 (concatD [doc (showString "(") , prt 0 pathels , doc (showString ",") , prt 0 term , doc (showString ")")])
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , prt 0 xs])
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instance Print Name where
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prt i e = case e of
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Nm id profiles -> prPrec i 0 (concatD [prt 0 id , doc (showString "[") , prt 0 profiles , doc (showString "]")])
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instance Print Profile where
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prt i e = case e of
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Unify ns -> prPrec i 0 (concatD [doc (showString "[") , prt 0 ns , doc (showString "]")])
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Const forest -> prPrec i 0 (concatD [prt 0 forest])
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , prt 0 xs])
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instance Print Forest where
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prt i e = case e of
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FMeta -> prPrec i 0 (concatD [doc (showString "?")])
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FNode id forestss -> prPrec i 0 (concatD [doc (showString "(") , prt 0 id , prt 0 forestss , doc (showString ")")])
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FString str -> prPrec i 0 (concatD [prt 0 str])
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FInt n -> prPrec i 0 (concatD [prt 0 n])
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FFloat d -> prPrec i 0 (concatD [prt 0 d])
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , prt 0 xs])
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instance Print Term where
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prt i e = case e of
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Arg n id pathels -> prPrec i 0 (concatD [doc (showString "(") , prt 0 n , prt 0 id , prt 0 pathels , doc (showString ")")])
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Constr cident terms -> prPrec i 0 (concatD [doc (showString "(") , prt 0 cident , doc (showString "-") , prt 0 terms , doc (showString ")")])
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Rec assocs -> prPrec i 0 (concatD [doc (showString "[") , prt 0 assocs , doc (showString "]")])
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Proj term label -> prPrec i 0 (concatD [doc (showString "(") , prt 0 term , doc (showString ".") , prt 0 label , doc (showString ")")])
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Tbl cases -> prPrec i 0 (concatD [doc (showString "[-") , prt 0 cases , doc (showString "-]")])
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Select term0 term -> prPrec i 0 (concatD [doc (showString "(") , prt 0 term0 , doc (showString "!") , prt 0 term , doc (showString ")")])
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Vars terms -> prPrec i 0 (concatD [doc (showString "[|") , prt 0 terms , doc (showString "|]")])
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Concat term0 term -> prPrec i 0 (concatD [doc (showString "(") , prt 0 term0 , doc (showString "++") , prt 0 term , doc (showString ")")])
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Tok str -> prPrec i 0 (concatD [prt 0 str])
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Empty -> prPrec i 0 (concatD [doc (showString "(") , doc (showString ")")])
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|
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
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|
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instance Print Case where
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prt i e = case e of
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Cas term0 term -> prPrec i 0 (concatD [prt 0 term0 , doc (showString "=>") , prt 0 term])
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||||
|
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prtList es = case es of
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
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instance Print Assoc where
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prt i e = case e of
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Ass label term -> prPrec i 0 (concatD [prt 0 label , doc (showString "=") , prt 0 term])
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||||
|
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prtList es = case es of
|
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[] -> (concatD [])
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x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
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||||
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instance Print Label where
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prt i e = case e of
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L id -> prPrec i 0 (concatD [prt 0 id])
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LV n -> prPrec i 0 (concatD [doc (showString "$") , prt 0 n])
|
||||
|
||||
|
||||
instance Print CIdent where
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prt i e = case e of
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||||
CIQ id0 id -> prPrec i 0 (concatD [prt 0 id0 , doc (showString ".") , prt 0 id])
|
||||
|
||||
|
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100
src/GF/FCFG/ToFCFG.hs
Normal file
100
src/GF/FCFG/ToFCFG.hs
Normal file
@@ -0,0 +1,100 @@
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----------------------------------------------------------------------
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||||
-- |
|
||||
-- Maintainer : Aarne Ranta
|
||||
-- Stability : (stable)
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||||
-- Portability : (portable)
|
||||
--
|
||||
-- mapping from GF-internal FGrammar to bnfc-defined FCFG
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
module GF.FCFG.ToFCFG (printFGrammar) where
|
||||
|
||||
import GF.Formalism.FCFG
|
||||
import GF.Formalism.SimpleGFC
|
||||
import GF.Conversion.Types
|
||||
import GF.Infra.Ident
|
||||
import qualified GF.FCFG.AbsFCFG as F
|
||||
|
||||
import GF.FCFG.PrintFCFG (printTree)
|
||||
|
||||
import qualified GF.Canon.AbsGFC as C
|
||||
|
||||
import Control.Monad (liftM)
|
||||
import Data.List (groupBy)
|
||||
import Data.Array
|
||||
|
||||
import GF.Formalism.Utilities
|
||||
import GF.Formalism.GCFG
|
||||
|
||||
import GF.Infra.Print
|
||||
|
||||
|
||||
-- this is the main function used
|
||||
printFGrammar :: FCFGrammar FCat Name Token -> String
|
||||
printFGrammar = printTree . fgrammar
|
||||
|
||||
fgrammar :: FCFGrammar FCat Name Token -> F.FGrammar
|
||||
fgrammar = F.FGr . map frule
|
||||
|
||||
frule :: FCFRule FCat Name Token -> F.FRule
|
||||
frule (FRule ab rhs) =
|
||||
F.FR (abstract ab) [[fsymbol sym | (_,sym) <- assocs syms] | (_,syms) <- assocs rhs]
|
||||
|
||||
abstract :: Abstract FCat Name -> F.Abstract
|
||||
abstract (Abs cat cats n) = F.Abs (fcat cat) (map fcat cats) (name n)
|
||||
|
||||
fsymbol :: FSymbol FCat Token -> F.FSymbol
|
||||
fsymbol fs = case fs of
|
||||
FSymCat fc i j -> F.FSymCat (fcat fc) (toInteger i) (toInteger j)
|
||||
FSymTok s -> F.FSymTok s
|
||||
|
||||
fcat :: FCat -> F.FCat
|
||||
fcat (FCat i id ps pts) =
|
||||
F.FC (toInteger i) (ident id) [map pathel p | Path p <- ps]
|
||||
[F.PtT (map pathel p) (term t) | (Path p,t) <- pts]
|
||||
|
||||
name :: Name -> F.Name
|
||||
name (Name id profs) = F.Nm (ident id) (map profile profs)
|
||||
|
||||
pathel :: Either C.Label (Term SCat Token) -> F.PathEl
|
||||
pathel lt = case lt of
|
||||
Left lab -> F.PLabel $ label lab
|
||||
Right trm -> F.PTerm $ term trm
|
||||
|
||||
path (Path p) = map pathel p
|
||||
|
||||
profile :: Profile (SyntaxForest Fun) -> F.Profile
|
||||
profile p = case p of
|
||||
Unify is -> F.Unify (map toInteger is)
|
||||
Constant sf -> F.Const (forest sf)
|
||||
|
||||
forest :: SyntaxForest Fun -> F.Forest
|
||||
forest f = case f of
|
||||
FMeta -> F.FMeta
|
||||
FNode id fss -> F.FNode (ident id) (map (map forest) fss)
|
||||
FString s -> F.FString s
|
||||
FInt i -> F.FInt i
|
||||
FFloat d -> F.FFloat d
|
||||
|
||||
term :: Term SCat Token -> F.Term
|
||||
term tr = case tr of
|
||||
Arg i id p -> F.Arg (toInteger i) (ident id) (path p)
|
||||
Rec rs -> F.Rec [F.Ass (label l) (term t) | (l,t) <- rs]
|
||||
Tbl cs -> F.Tbl [F.Cas (term p) (term v) | (p,v) <- cs]
|
||||
c :^ ts -> F.Constr (constr c) (map term ts)
|
||||
t :. l -> F.Proj (term t) (label l)
|
||||
t :++ u -> F.Concat (term t) (term u)
|
||||
t :! u -> F.Select (term t) (term u)
|
||||
Variants ts -> F.Vars $ map term ts
|
||||
Token s -> F.Tok s
|
||||
Empty -> F.Empty
|
||||
|
||||
label :: C.Label -> F.Label
|
||||
label b = case b of
|
||||
C.L x -> F.L $ ident x
|
||||
C.LV i -> F.LV i
|
||||
|
||||
ident :: Ident -> F.Ident
|
||||
ident = F.Ident . prIdent --- is information lost?
|
||||
|
||||
constr (C.CIQ m c) = F.CIQ (ident m) (ident c)
|
||||
@@ -37,6 +37,7 @@ import qualified GF.Canon.GFC as C
|
||||
import qualified GF.Canon.CanonToGFCC as GFCC
|
||||
import qualified GF.Source.AbsGF as GF
|
||||
import qualified GF.Grammar.MMacros as MM
|
||||
import GF.FCFG.ToFCFG
|
||||
import GF.Grammar.AbsCompute
|
||||
import GF.Grammar.TypeCheck
|
||||
import GF.UseGrammar.Generate
|
||||
@@ -310,6 +311,7 @@ customGrammarPrinter =
|
||||
-- grammar conversions:
|
||||
,(strCI "mcfg", \_ -> Prt.prt . stateMCFG)
|
||||
,(strCI "fcfg", \_ -> Prt.prt . stateFCFG)
|
||||
,(strCI "bfcfg", \_ -> printFGrammar . stateFCFG)
|
||||
,(strCI "mcfg2fcfg",\_ -> Prt.prt . Cnv.mcfg2fcfg . stateMCFG)
|
||||
,(strCI "cfg", \_ -> Prt.prt . stateCFG)
|
||||
,(strCI "pinfo", \_ -> Prt.prt . statePInfo)
|
||||
|
||||
Reference in New Issue
Block a user