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| author | aarne <aarne@cs.chalmers.se> | 2008-05-21 09:26:44 +0000 |
|---|---|---|
| committer | aarne <aarne@cs.chalmers.se> | 2008-05-21 09:26:44 +0000 |
| commit | 055c0d0d5a5bb0dc75904fe53df7f2e4f5732a8f (patch) | |
| tree | 0e63fb68c69c8f6ad0f78893c63420f0a3600e1c /src-2.9/GF/OldParsing/ConvertSimpleToMCFG/Coercions.hs | |
| parent | 915a1de71783ab8446b1af9e72c7ba7dfbc12d3f (diff) | |
GF/src is now for 2.9, and the new sources are in src-3.0 - keep it this way until the release of GF 3
Diffstat (limited to 'src-2.9/GF/OldParsing/ConvertSimpleToMCFG/Coercions.hs')
| -rw-r--r-- | src-2.9/GF/OldParsing/ConvertSimpleToMCFG/Coercions.hs | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/src-2.9/GF/OldParsing/ConvertSimpleToMCFG/Coercions.hs b/src-2.9/GF/OldParsing/ConvertSimpleToMCFG/Coercions.hs deleted file mode 100644 index adc42115a..000000000 --- a/src-2.9/GF/OldParsing/ConvertSimpleToMCFG/Coercions.hs +++ /dev/null @@ -1,70 +0,0 @@ ----------------------------------------------------------------------- --- | --- Maintainer : PL --- Stability : (stable) --- Portability : (portable) --- --- > CVS $Date: 2005/04/21 16:22:57 $ --- > CVS $Author: bringert $ --- > CVS $Revision: 1.3 $ --- --- Adding coercion functions to a MCFG if necessary. ------------------------------------------------------------------------------ - - -module GF.OldParsing.ConvertSimpleToMCFG.Coercions (addCoercions) where - -import GF.System.Tracing -import GF.Printing.PrintParser -import GF.Printing.PrintSimplifiedTerm --- import PrintGFC --- import qualified PrGrammar as PG - -import qualified GF.Infra.Ident as Ident -import GF.OldParsing.Utilities ---import GF.OldParsing.GrammarTypes -import GF.OldParsing.MCFGrammar (Rule(..), Lin(..)) -import GF.Data.SortedList -import Data.List (groupBy) -- , transpose) - ----------------------------------------------------------------------- - ---addCoercions :: MCFGrammar -> MCFGrammar -addCoercions rules = coercions ++ rules - where (allHeads, allArgs) = unzip [ ((head, lbls), nubsort args) | - Rule head args lins _ <- rules, - let lbls = [ lbl | Lin lbl _ <- lins ] ] - allHeadSet = nubsort allHeads - allArgSet = union allArgs <\\> map fst allHeadSet - coercions = tracePrt "#coercions total" (prt . length) $ - concat $ - tracePrt "#coercions per cat" (prtList . map length) $ - combineCoercions - (groupBy sameCatFst allHeadSet) - (groupBy sameCat allArgSet) - sameCatFst a b = sameCat (fst a) (fst b) - - -combineCoercions [] _ = [] -combineCoercions _ [] = [] -combineCoercions allHeads'@(heads:allHeads) allArgs'@(args:allArgs) - = case compare (mainCat $ fst $ head heads) (mainCat $ head args) of - LT -> combineCoercions allHeads allArgs' - GT -> combineCoercions allHeads' allArgs - EQ -> makeCoercion heads args : combineCoercions allHeads allArgs - - -makeCoercion heads args = [ Rule arg [head] lins coercionName | - head@((_, headCns), lbls) <- heads, - let lins = [ Lin lbl [Cat (head, lbl, 0)] | lbl <- lbls ], - arg@(_, argCns) <- args, - argCns `subset` headCns ] - - -coercionName = Ident.IW - -mainCat (c, _) = c - -sameCat mc1 mc2 = mainCat mc1 == mainCat mc2 - - |