1
0
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

View File

@@ -4,9 +4,9 @@
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date: 2005/04/12 10:49:45 $
-- > CVS $Date: 2005/04/18 14:55:33 $
-- > CVS $Author: peb $
-- > CVS $Revision: 1.2 $
-- > CVS $Revision: 1.3 $
--
-- The main parsing module, parsing GFC grammars
-- by translating to simpler formats, such as PMCFG and CFG
@@ -67,9 +67,9 @@ parse (c:strategy) pinfo abs startCat
| c=='c' || c=='C' = map (tree2term abs) .
parseCFG strategy pinfo startCats .
map prCFTok
where startCats = tracePrt "startCats" prt $
where startCats = tracePrt "Parsing.GFC - starting categories" prt $
filter isStartCat $ map fst $ aAssocs $ PC.topdownRules $ cfPInfo pinfo
isStartCat (CCat (MCat cat _) _) = cat == cfCat2Ident startCat
isStartCat (CCat (ECat cat _) _) = cat == cfCat2Ident startCat
-- default parser
parse strategy pinfo abs start = parse ('c':strategy) pinfo abs start
@@ -78,9 +78,9 @@ parse strategy pinfo abs start = parse ('c':strategy) pinfo abs start
----------------------------------------------------------------------
parseCFG :: String -> PInfo -> [CCat] -> [Token] -> [SyntaxTree Fun]
parseCFG strategy pInfo startCats inString = trace2 "Parser" "CFG" $
parseCFG strategy pInfo startCats inString = trace2 "Parsing.GFC - selected algorithm" "CFG" $
trees
where trees = tracePrt "#trees" (prt . length) $
where trees = tracePrt "Parsing.GFC - nr. trees" (prt . length) $
nubsort $ forests >>= forest2trees
-- compactFs >>= forest2trees
@@ -88,19 +88,19 @@ parseCFG strategy pInfo startCats inString = trace2 "Parser" "CFG" $
-- tracePrt "compactForests" (prtBefore "\n") $
-- compactForests forests
forests = tracePrt "#forests" (prt . length) $
forests = tracePrt "Parsing.GFC - nr. forests" (prt . length) $
cfForests >>= convertFromCFForest
cfForests= tracePrt "#cfForests" (prt . length) $
cfForests= tracePrt "Parsing.GFC - nr. context-free forests" (prt . length) $
chart2forests chart (const False) finalEdges
finalEdges = tracePrt "finalChartEdges" prt $
finalEdges = tracePrt "Parsing.GFC - final chart edges" prt $
map (uncurry Edge (inputBounds inTokens)) startCats
chart = --tracePrt "finalChartEdges" (prt . (? finalEdge)) $
tracePrt "#chart" (prt . map (length.snd) . aAssocs) $
tracePrt "Parsing.GFC - size of chart" (prt . map (length.snd) . aAssocs) $
C.grammar2chart cfChart
cfChart = --tracePrt "finalEdges"
--(prt . filter (\(Edge i j _) -> (i,j)==inputBounds inTokens)) $
tracePrt "#cfChart" (prt . length) $
tracePrt "Parsing.GFC - size of context-free chart" (prt . length) $
PC.parseCF strategy (cfPInfo pInfo) startCats inTokens
inTokens = input inString