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forked from GitHub/gf-core

"Committed_by_peb"

This commit is contained in:
peb
2005-04-18 13:55:32 +00:00
parent 1323b74063
commit c1592825c7
19 changed files with 284 additions and 192 deletions

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@@ -4,9 +4,9 @@
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date: 2005/04/16 05:40:49 $
-- > CVS $Date: 2005/04/18 14:55:33 $
-- > CVS $Author: peb $
-- > CVS $Revision: 1.2 $
-- > CVS $Revision: 1.3 $
--
-- CFG parsing with a general chart
-----------------------------------------------------------------------------
@@ -26,7 +26,8 @@ import Monad
parse :: (Ord n, Ord c, Ord t) => Strategy -> CFParser c n t
parse strategy grammar start = extract .
tracePrt "#internal chart" (prt . length . chartList) .
tracePrt "Parsing.CFG.General - size internal of chart"
(prt . length . chartList) .
process strategy grammar start
-- | parsing strategy: (isBottomup, isTopdown)
@@ -54,8 +55,8 @@ process :: (Ord n, Ord c, Ord t) =>
-> Input t -- ^ input string
-> IChart n (Symbol c t)
process (isBottomup, isTopdown) grammar start
= trace2 "CFParserGeneral" ((if isBottomup then " BU" else "") ++
(if isTopdown then " TD" else "")) $
= trace2 "Parsing.CFG.General - strategy" ((if isBottomup then " BU" else "") ++
(if isTopdown then " TD" else "")) $
buildChart keyof [predict, combine] . axioms
where axioms input = initial ++ scan input

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@@ -4,9 +4,9 @@
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date: 2005/04/16 05:40:49 $
-- > CVS $Date: 2005/04/18 14:55:33 $
-- > CVS $Author: peb $
-- > CVS $Revision: 1.2 $
-- > CVS $Revision: 1.3 $
--
-- Incremental chart parsing for CFG
-----------------------------------------------------------------------------
@@ -34,7 +34,8 @@ type Strategy = ((Bool, Bool), (Bool, Bool))
parse :: (Ord n, Ord c, Ord t) => Strategy -> CFParser c n t
parse strategy grammar start = extract .
tracePrt "#internal chart" (prt . length . flip chartList const) .
tracePrt "Parsing.CFG.Incremental - size of internal chart"
(prt . length . flip chartList const) .
process strategy grammar start
extract :: (Ord n, Ord c, Ord t) =>
@@ -54,10 +55,10 @@ extract finalChart = [ CFRule (Edge j k cat) daughters name |
process :: (Ord n, Ord c, Ord t) =>
Strategy -> CFPInfo c n t -> [c] -> Input t -> IChart c n t
process ((isPredictBU, isPredictTD), (isFilterBU, isFilterTD)) grammar start input
= trace2 "CFParserIncremental" ((if isPredictBU then "BU-predict " else "") ++
(if isPredictTD then "TD-predict " else "") ++
(if isFilterBU then "BU-filter " else "") ++
(if isFilterTD then "TD-filter " else "")) $
= trace2 "Parsing.CFG.Incremental - strategy" ((if isPredictBU then "BU-predict " else "") ++
(if isPredictTD then "TD-predict " else "") ++
(if isFilterBU then "BU-filter " else "") ++
(if isFilterTD then "TD-filter " else "")) $
finalChart
where finalChart = buildChart keyof rules axioms $ inputBounds input

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@@ -4,9 +4,9 @@
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date: 2005/04/16 05:40:49 $
-- > CVS $Date: 2005/04/18 14:55:33 $
-- > CVS $Author: peb $
-- > CVS $Revision: 1.2 $
-- > CVS $Revision: 1.3 $
--
-- CFG parsing, parser information
-----------------------------------------------------------------------------
@@ -51,7 +51,7 @@ buildCFPInfo :: (Ord n, Ord c, Ord t) => CFGrammar c n t -> CFPInfo c n t
-- this is not permanent...
buildCFPInfo grammar = traceCalcFirst grammar $
tracePrt "cf parser info" (prt) $
tracePrt "CFG.PInfo - parser info" (prt) $
pInfo' (filter (not . isCyclic) grammar)
pInfo' grammar = CFPInfo grToks nmRules tdRules buRules elcRules emptyCats cyclicCats leftToks
@@ -84,14 +84,14 @@ isCyclic _ = False
----------------------------------------------------------------------
instance (Ord n, Ord c, Ord t) => Print (CFPInfo n c t) where
prt pI = "[ tokens=" ++ sl grammarTokens ++
"; names=" ++ sla nameRules ++
"; tdCats=" ++ sla topdownRules ++
"; buCats=" ++ sla bottomupRules ++
"; elcCats=" ++ sla emptyLeftcornerRules ++
"; eCats=" ++ sla emptyCategories ++
"; cCats=" ++ sl cyclicCategories ++
"; lctokCats=" ++ sla leftcornerTokens ++
prt pI = "[ nr. tokens=" ++ sl grammarTokens ++
"; nr. names=" ++ sla nameRules ++
"; nr. tdCats=" ++ sla topdownRules ++
"; nr. buCats=" ++ sla bottomupRules ++
"; nr. elcCats=" ++ sla emptyLeftcornerRules ++
"; nr. eCats=" ++ sla emptyCategories ++
"; nr. cCats=" ++ sl cyclicCategories ++
"; nr. lctokCats=" ++ sla leftcornerTokens ++
" ]"
where sla f = show $ length $ aElems $ f pI
sl f = show $ length $ f pI