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authorkrasimir <krasimir@chalmers.se>2008-05-29 12:38:09 +0000
committerkrasimir <krasimir@chalmers.se>2008-05-29 12:38:09 +0000
commitecfb1f5e01d207409123905cafa6605106d0f366 (patch)
tree3cc1ea80534a3337f7f6d1aa725008e96c18bae9 /src-3.0/GF/Parsing/FCFG.hs
parent9c2d27b8d19343c4401e0f622e7d541101982670 (diff)
move the parsing related stuff to GF.GFCC.Parsing
Diffstat (limited to 'src-3.0/GF/Parsing/FCFG.hs')
-rw-r--r--src-3.0/GF/Parsing/FCFG.hs83
1 files changed, 0 insertions, 83 deletions
diff --git a/src-3.0/GF/Parsing/FCFG.hs b/src-3.0/GF/Parsing/FCFG.hs
deleted file mode 100644
index 050c30f81..000000000
--- a/src-3.0/GF/Parsing/FCFG.hs
+++ /dev/null
@@ -1,83 +0,0 @@
-----------------------------------------------------------------------
--- |
--- Maintainer : Krasimir Angelov
--- Stability : (stable)
--- Portability : (portable)
---
--- FCFG parsing
------------------------------------------------------------------------------
-
-module GF.Parsing.FCFG
- (parseFCF,buildParserInfo,ParserInfo(..),makeFinalEdge) where
-
-import GF.Data.SortedList
-import GF.Data.Assoc
-
-import GF.Infra.PrintClass
-
-import GF.Formalism.Utilities
-
-import GF.Parsing.FCFG.Active
-
-import GF.GFCC.CId
-import GF.GFCC.DataGFCC
-import GF.GFCC.BuildParser
-import GF.GFCC.Macros
-import GF.Data.ErrM
-
-import qualified Data.Map as Map
-
-----------------------------------------------------------------------
--- parsing
-
--- main parsing function
-
-parseFCF ::
- String -> -- ^ parsing strategy
- ParserInfo -> -- ^ compiled grammar (fcfg)
- CId -> -- ^ starting category
- [String] -> -- ^ input tokens
- Err [Exp] -- ^ resulting GF terms
-parseFCF strategy pinfo startCat inString =
- do let inTokens = input inString
- startCats <- Map.lookup startCat (startupCats pinfo)
- fcfParser <- {- trace lctree $ -} parseFCF strategy
- let chart = fcfParser pinfo startCats inTokens
- (i,j) = inputBounds inTokens
- finalEdges = [makeFinalEdge cat i j | cat <- startCats]
- forests = chart2forests chart (const False) finalEdges
- filteredForests = forests >>= applyProfileToForest
- trees = nubsort $ filteredForests >>= forest2trees
- return $ map tree2term trees
- where
- parseFCF :: String -> Err (FCFParser)
- parseFCF "bottomup" = Ok $ parse "b"
- parseFCF "topdown" = Ok $ parse "t"
- parseFCF strat = Bad $ "FCFG parsing strategy not defined: " ++ strat
-
-----------------------------------------------------------------------
--- parse trees to GFCC terms
-
-tree2term :: SyntaxTree CId -> Exp
-tree2term (TNode f ts) = tree (AC f) (map tree2term ts)
-
-tree2term (TString s) = tree (AS s) []
-tree2term (TInt n) = tree (AI n) []
-tree2term (TFloat f) = tree (AF f) []
-tree2term (TMeta) = exp0
-
-----------------------------------------------------------------------
--- conversion and unification of forests
-
--- simplest implementation
-applyProfileToForest :: SyntaxForest (CId,[Profile]) -> [SyntaxForest CId]
-applyProfileToForest (FNode (fun,profiles) children)
- | fun == wildCId = concat chForests
- | otherwise = [ FNode fun chForests | not (null chForests) ]
- where chForests = concat [ mapM (unifyManyForests . map (forests !!)) profiles |
- forests0 <- children,
- forests <- mapM applyProfileToForest forests0 ]
-applyProfileToForest (FString s) = [FString s]
-applyProfileToForest (FInt n) = [FInt n]
-applyProfileToForest (FFloat f) = [FFloat f]
-applyProfileToForest (FMeta) = [FMeta]