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initial support for literal categories e.g. String,Int and Float

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kr.angelov
2006-06-06 21:30:14 +00:00
parent 283379b57f
commit f09e929dd1
7 changed files with 165 additions and 68 deletions
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24
src/GF/Parsing/GFC.hs
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@@ -54,9 +54,17 @@ type CFPInfo = PC.CFPInfo CCat Name Token
buildPInfo :: MGrammar -> FGrammar -> CGrammar -> PInfo
buildPInfo mcfg fcfg cfg = PInfo { mcfPInfo = PM.buildMCFPInfo mcfg
, fcfPInfo = PF.buildFCFPInfo fcfg
, fcfPInfo = PF.buildFCFPInfo grammarLexer fcfg
, cfPInfo = PC.buildCFPInfo cfg
}
where
grammarLexer s =
case reads s of
[(n::Integer,"")] -> (fcatInt, TInt n)
_ -> case reads s of
[(f::Double,"")] -> (fcatFloat, TFloat f)
_ -> (fcatString,TString s)
instance Print PInfo where
prt (PInfo m f c) = prt m ++ "\n" ++ prt c
@@ -126,12 +134,7 @@ selectParser "f" strategy pinfo startCat inTokens
isStart cat = fcat2scat cat == cfCat2Ident startCat
fcfpi = fcfPInfo pinfo
fcfParser <- PF.parseFCF strategy
let fcfChart = fcfParser fcfpi startCats inTokens
chart = G.abstract2chart fcfChart
(begin,end) = inputBounds inTokens
finalEdges = [ PF.makeFinalEdge cat begin end |
cat@(FCat _ _ [lbl] _) <- startCats ]
return $ chart2forests chart (const False) finalEdges
return $ fcfParser fcfpi startCats inTokens
-- error parser:
selectParser prs strategy _ _ _ = Bad $ "Parser '" ++ prs ++ "' not defined with strategy: " ++ strategy
@@ -142,6 +145,9 @@ selectParser prs strategy _ _ _ = Bad $ "Parser '" ++ prs ++ "' not defined with
tree2term :: Ident.Ident -> SyntaxTree Fun -> Grammar.Term
tree2term abs (TNode f ts) = Macros.mkApp (Macros.qq (abs,f)) (map (tree2term abs) ts)
tree2term abs (TString s) = Macros.string2term s
tree2term abs (TInt n) = Macros.int2term n
tree2term abs (TFloat f) = Macros.float2term f
tree2term abs (TMeta) = Macros.mkMeta 0
@@ -156,6 +162,10 @@ applyProfileToForest (FNode name@(Name fun profile) children)
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]
{-
-- more intelligent(?) implementation