diff options
| author | aarne <aarne@cs.chalmers.se> | 2008-06-25 16:43:48 +0000 |
|---|---|---|
| committer | aarne <aarne@cs.chalmers.se> | 2008-06-25 16:43:48 +0000 |
| commit | b96b36f43de3e2f8b58d5f539daa6f6d47f25870 (patch) | |
| tree | 0992334be13cec6538a1dea22fbbf26ad6bdf224 /src/GF/Conversion/RemoveEpsilon.hs | |
| parent | fe367412e0aeb4ad5c02de68e6eca382e0f96984 (diff) | |
removed src for 2.9
Diffstat (limited to 'src/GF/Conversion/RemoveEpsilon.hs')
| -rw-r--r-- | src/GF/Conversion/RemoveEpsilon.hs | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/src/GF/Conversion/RemoveEpsilon.hs b/src/GF/Conversion/RemoveEpsilon.hs deleted file mode 100644 index 0e5dafb38..000000000 --- a/src/GF/Conversion/RemoveEpsilon.hs +++ /dev/null @@ -1,46 +0,0 @@ ----------------------------------------------------------------------- --- | --- Maintainer : PL --- Stability : (stable) --- Portability : (portable) --- --- > CVS $Date: 2005/05/30 08:11:32 $ --- > CVS $Author: peb $ --- > CVS $Revision: 1.3 $ --- --- Removing epsilon linearizations from MCF grammars ------------------------------------------------------------------------------ - - -module GF.Conversion.RemoveEpsilon where --- (convertGrammar) where - -import GF.System.Tracing -import GF.Infra.Print - -import Control.Monad -import Data.List (mapAccumL) -import Data.Maybe (mapMaybe) -import GF.Formalism.Utilities -import GF.Formalism.GCFG -import GF.Formalism.MCFG -import GF.Conversion.Types -import GF.Data.Assoc -import GF.Data.SortedList -import GF.Data.GeneralDeduction - -convertGrammar :: EGrammar -> EGrammar -convertGrammar grammar = trace2 "RemoveEpsilon: initialEmpties" (prt initialEmpties) $ - trace2 "RemoveEpsilon: emptyCats" (prt emptyCats) $ - grammar - where initialEmpties = nubsort [ (cat, lbl) | - Rule (Abs cat _ _) (Cnc _ _ lins) <- grammar, - Lin lbl [] <- lins ] - emptyCats = limitEmpties initialEmpties - limitEmpties es = if es==es' then es else limitEmpties es' - where es' = nubsort [ (cat, lbl) | Rule (Abs cat _ _) (Cnc _ _ lins) <- grammar, - Lin lbl rhs <- lins, - all (symbol (\(c,l,n) -> (c,l) `elem` es) (const False)) rhs ] - - - |