merge FCFGParsing with GF.Parsing.FCFG

src/GF/Canon/GFCC/FCFGParsing.hs

@@ -1,114 +0,0 @@
-module GF.Canon.GFCC.FCFGParsing (parserLang,PF.buildFCFPInfo,PF.FCFPInfo) where
-
-import GF.Canon.GFCC.DataGFCC
-import GF.Canon.GFCC.AbsGFCC
-import GF.Conversion.SimpleToFCFG (convertGrammar,FCat(..))
-
-import GF.Data.SortedList 
-import GF.Data.Assoc
-import GF.Formalism.Utilities --(forest2trees)
-import qualified GF.Data.Operations as Op
-
-import GF.Formalism.FCFG
-import qualified GF.Parsing.FCFG as PF
-import GF.Canon.GFCC.ErrM
-import GF.Infra.PrintClass
-
-parserLang :: GFCC -> CId -> CFCat -> [CFTok] -> Err [Exp]
-parserLang mgr lang = parse info where
-  fcfgs = convertGrammar mgr
-  info  = PF.buildFCFPInfo $ maybe (error "no parser") id $ lookup lang fcfgs
-
-type CFTok = String ----
-type CFCat = CId ----
-type Fun = CId ----
-
-cfCat2Ident = id ----
-
-wordsCFTok :: CFTok -> [String]
-wordsCFTok = return ----
-
-
--- main parsing function
-
-parse :: 
---         String ->      -- ^ parsing algorithm (mcfg or cfg)
---         String ->      -- ^ parsing strategy
-      PF.FCFPInfo ->       -- ^ compiled grammar (fcfg) 
---      Ident.Ident ->    -- ^ abstract module name
-      CFCat ->          -- ^ starting category
-      [CFTok] ->        -- ^ input tokens
-      Err [Exp]         -- ^ resulting GF terms
-
-parse pinfo startCat inString = e2e $
-
-    do let inTokens = inputMany (map wordsCFTok inString)
-       forests <- selectParser pinfo startCat inTokens
-       let filteredForests = forests >>= applyProfileToForest
-	   trees = nubsort $ filteredForests >>= forest2trees
-
-       return $ map tree2term trees
-
-
--- parsing via FCFG
-selectParser pinfo startCat inTokens
-    = do let startCats = filter isStart $ PF.grammarCats fcfpi
-	     isStart cat = cat' == cfCat2Ident startCat
-	       where CId x = fcat2cid cat
-	             cat'  = CId x
-	     fcfpi = pinfo
-	 fcfParser <- PF.parseFCF "bottomup"
-	 let chart = fcfParser fcfpi startCats inTokens
-	     (i,j) = inputBounds inTokens
-	     finalEdges = [PF.makeFinalEdge cat i j | cat <- startCats]
-	 return $ map cnv_forests $ chart2forests chart (const False) finalEdges
-
-cnv_forests FMeta         = FMeta
-cnv_forests (FNode (Name (CId n) p) fss) = FNode (Name (CId n) (map cnv_profile p)) (map (map cnv_forests) fss)
-cnv_forests (FString x)   = FString x
-cnv_forests (FInt    x)   = FInt    x
-cnv_forests (FFloat  x)   = FFloat  x
-
-cnv_profile (Unify    x) = Unify x
-cnv_profile (Constant x) = Constant (cnv_forests2 x)
-
-cnv_forests2 FMeta         = FMeta
-cnv_forests2 (FNode (CId n) fss) = FNode (CId n) (map (map cnv_forests2) fss)
-cnv_forests2 (FString x)   = FString x
-cnv_forests2 (FInt    x)   = FInt    x
-cnv_forests2 (FFloat  x)   = FFloat  x
-
-----------------------------------------------------------------------
--- parse trees to GFCC terms
-
-tree2term :: SyntaxTree Fun -> Exp
-tree2term (TNode f ts) = Tr (AC f) (map tree2term ts)
-
-tree2term (TString  s) = Tr (AS s) []
-tree2term (TInt     n) = Tr (AI n) []
-tree2term (TFloat   f) = Tr (AF f) []
-tree2term (TMeta)      = Tr AM []
-
-----------------------------------------------------------------------
--- conversion and unification of forests
-
--- simplest implementation
-applyProfileToForest :: SyntaxForest FName -> [SyntaxForest Fun]
-applyProfileToForest (FNode name@(Name fun profile) children) 
-    | isCoercionF name = concat chForests
-    | otherwise       = [ FNode fun chForests | not (null chForests) ]
-    where chForests   = concat [ applyProfileM unifyManyForests profile forests |
-				 forests0 <- children,
-				 forests <- mapM applyProfileToForest forests0 ]
-applyProfileToForest (FString s) = [FString s]
-applyProfileToForest (FInt    n) = [FInt    n]
-applyProfileToForest (FFloat  f) = [FFloat  f]
-applyProfileToForest (FMeta)     = [FMeta]
-
----
-
-e2e :: Op.Err a -> Err a
-e2e e = case e of
-  Op.Ok v -> Ok v
-  Op.Bad s -> Bad s
-

src/GF/Canon/GFCC/GFCCAPI.hs

@@ -21,7 +21,7 @@ import GF.Canon.GFCC.AbsGFCC
 import GF.Canon.GFCC.ParGFCC
 import GF.Canon.GFCC.PrintGFCC
 import GF.Canon.GFCC.ErrM
-import GF.Canon.GFCC.FCFGParsing
+import GF.Parsing.FCFG
 import qualified GF.Canon.GFCC.GenGFCC as G
 import GF.Conversion.SimpleToFCFG (convertGrammar,FCat(..))
 
@@ -82,7 +82,11 @@ file2gfcc f =
 linearize mgr lang = GF.Canon.GFCC.DataGFCC.linearize (gfcc mgr) (CId lang)
 
 parse mgr lang cat s = 
-  err error id $ parserLang (gfcc mgr) (CId lang) (CId cat) (words s)
+  case lookup lang (parsers mgr) of
+    Nothing    -> error "no parser"
+    Just pinfo -> case parseFCF "bottomup" pinfo (CId cat) (words s) of
+                    Ok x -> x
+                    Bad s -> error s
 
 linearizeAll mgr = map snd . linearizeAllLang mgr
 linearizeAllLang mgr t =