mirror of
https://github.com/GrammaticalFramework/gf-core.git
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"Committed_by_peb"
This commit is contained in:
peb
@@ -4,21 +4,21 @@
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/04/16 05:40:49 $
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-- > CVS $Date: 2005/04/18 14:55:32 $
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-- > CVS $Author: peb $
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-- > CVS $Revision: 1.5 $
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-- > CVS $Revision: 1.6 $
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--
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-- All conversions from GFC
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-----------------------------------------------------------------------------
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module GF.Conversion.GFC
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module GF.Conversion.GFC
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(module GF.Conversion.GFC,
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SGrammar, MGrammar, CGrammar) where
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import Option
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import GFC (CanonGrammar)
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import Ident (Ident)
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import GF.Conversion.Types (CGrammar, MGrammar, NGrammar, SGrammar)
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import GF.Conversion.Types (CGrammar, MGrammar, EGrammar, SGrammar)
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import qualified GF.Conversion.GFCtoSimple as G2S
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import qualified GF.Conversion.SimpleToFinite as S2Fin
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@@ -31,9 +31,10 @@ import qualified GF.Conversion.MCFGtoCFG as M2C
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-- * GFC -> MCFG & CFG, using options to decide which conversion is used
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gfc2mcfg2cfg :: Options -> (CanonGrammar, Ident) -> (MGrammar, CGrammar)
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gfc2mcfg2cfg opts = \g -> let m = g2m g in (m, m2c m)
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where m2c = mcfg2cfg
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g2m = case getOptVal opts gfcConversion of
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gfc2mcfg2cfg opts = \g -> let e = g2e g in (e2m e, e2c e)
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where e2c = mcfg2cfg
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e2m = removeErasing
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g2e = case getOptVal opts gfcConversion of
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Just "strict" -> simple2mcfg_strict . gfc2simple
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Just "finite" -> simple2mcfg_nondet . gfc2finite
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Just "finite-strict" -> simple2mcfg_strict . gfc2finite
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@@ -60,24 +61,18 @@ removeSingletons = RemSing.convertGrammar
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gfc2finite :: (CanonGrammar, Ident) -> SGrammar
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gfc2finite = removeSingletons . simple2finite . gfc2simple
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simple2mcfg_nondet :: SGrammar -> MGrammar
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simple2mcfg_nondet :: SGrammar -> EGrammar
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simple2mcfg_nondet = S2M.convertGrammarNondet
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simple2mcfg_strict :: SGrammar -> MGrammar
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simple2mcfg_strict :: SGrammar -> EGrammar
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simple2mcfg_strict = S2M.convertGrammarStrict
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mcfg2cfg :: MGrammar -> CGrammar
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mcfg2cfg :: EGrammar -> CGrammar
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mcfg2cfg = M2C.convertGrammar
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removeErasing :: MGrammar -> NGrammar
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removeErasing :: EGrammar -> MGrammar
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removeErasing = RemEra.convertGrammar
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-- | this function is unnecessary, because of the following equivalence:
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--
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-- > mcfg2cfg == ne_mcfg2cfg . removeErasing
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--
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ne_mcfg2cfg :: NGrammar -> CGrammar
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ne_mcfg2cfg = M2C.convertNEGrammar
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@@ -4,9 +4,9 @@
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/04/14 11:42:05 $
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-- > CVS $Date: 2005/04/18 14:55:32 $
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-- > CVS $Author: peb $
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-- > CVS $Revision: 1.3 $
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-- > CVS $Revision: 1.4 $
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--
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-- Converting GFC to SimpleGFC
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--
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@@ -37,8 +37,8 @@ import GF.Infra.Print
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type Env = (CanonGrammar, I.Ident)
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convertGrammar :: Env -> SGrammar
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convertGrammar gram = trace2 "converting language" (show (snd gram)) $
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tracePrt "#simpleGFC rules" (show . length) $
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convertGrammar gram = trace2 "GFCtoSimple - concrete language" (prt (snd gram)) $
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tracePrt "GFCtoSimple - nr. simpleGFC rules" (prt . length) $
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[ convertAbsFun gram fun typing |
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A.Mod (A.MTAbs modname) _ _ _ defs <- modules,
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A.AbsDFun fun typing _ <- defs ]
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@@ -4,16 +4,16 @@
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/04/16 05:40:49 $
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-- > CVS $Date: 2005/04/18 14:55:32 $
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-- > CVS $Author: peb $
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-- > CVS $Revision: 1.3 $
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-- > CVS $Revision: 1.4 $
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--
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-- Converting MCFG grammars to (possibly overgenerating) CFG
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-----------------------------------------------------------------------------
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module GF.Conversion.MCFGtoCFG
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(convertGrammar, convertNEGrammar) where
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(convertGrammar) where
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import GF.System.Tracing
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import GF.Infra.Print
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@@ -28,11 +28,11 @@ import GF.Conversion.Types
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----------------------------------------------------------------------
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-- * converting (possibly erasing) MCFG grammars
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convertGrammar :: MGrammar -> CGrammar
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convertGrammar gram = tracePrt "#context-free rules" (prt.length) $
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convertGrammar :: EGrammar -> CGrammar
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convertGrammar gram = tracePrt "MCFGtoCFG - nr. context-free rules" (prt.length) $
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concatMap convertRule gram
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convertRule :: MRule -> [CRule]
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convertRule :: ERule -> [CRule]
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convertRule (Rule (Abs cat args (Name fun mprofile)) (Cnc _ _ record))
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= [ CFRule (CCat cat lbl) rhs (Name fun profile) |
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Lin lbl lin <- record,
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@@ -41,34 +41,13 @@ convertRule (Rule (Abs cat args (Name fun mprofile)) (Cnc _ _ record))
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let profile = mprofile `composeProfiles` cprofile
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]
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convertArg :: (MCat, MLabel, Int) -> CCat
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convertArg :: (ECat, ELabel, Int) -> CCat
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convertArg (cat, lbl, _) = CCat cat lbl
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argPlaces :: [Symbol (cat, lbl, Int) tok] -> Int -> [Int]
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argPlaces lin nr = [ place | (nr', place) <- zip linArgs [0..], nr == nr' ]
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where linArgs = [ nr' | (_, _, nr') <- filterCats lin ]
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----------------------------------------------------------------------
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-- * converting nonerasing MCFG grammars
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convertNEGrammar :: NGrammar -> CGrammar
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convertNEGrammar gram = tracePrt "#context-free rules" (prt.length) $
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concatMap convertNERule gram
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convertNERule :: NRule -> [CRule]
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convertNERule (Rule (Abs ncat args (Name fun mprofile)) (Cnc _ _ record))
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= [ CFRule (CCat (ncat2mcat ncat) lbl) rhs (Name fun profile) |
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Lin lbl lin <- record,
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let rhs = map (mapSymbol convertNEArg id) lin,
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let cprofile = map (Unify . argPlaces lin) [0 .. length args-1],
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let profile = mprofile `composeProfiles` cprofile
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]
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convertNEArg :: (NCat, NLabel, Int) -> CCat
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convertNEArg (ncat, lbl, _) = CCat (ncat2mcat ncat) lbl
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----------------------------------------------------------------------
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36
src/GF/Conversion/RemoveEpsilon.hs
Normal file
36
src/GF/Conversion/RemoveEpsilon.hs
Normal file
@@ -0,0 +1,36 @@
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----------------------------------------------------------------------
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-- |
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-- Maintainer : PL
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/04/18 14:57:29 $
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-- > CVS $Author: peb $
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-- > CVS $Revision: 1.1 $
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--
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-- Removing epsilon linearizations from MCF grammars
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-----------------------------------------------------------------------------
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module GF.Conversion.RemoveEpsilon where
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-- (convertGrammar) where
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import GF.System.Tracing
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import GF.Infra.Print
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import Monad
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import List (mapAccumL)
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import Maybe (mapMaybe)
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import GF.Formalism.Utilities
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import GF.Formalism.GCFG
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import GF.Formalism.MCFG
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import GF.Conversion.Types
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import GF.Data.Assoc
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import GF.Data.SortedList
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import GF.NewParsing.GeneralChart
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convertGrammar :: EGrammar -> EGrammar
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convertGrammar grammar = undefined
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92
src/GF/Conversion/RemoveErasing.hs
Normal file
92
src/GF/Conversion/RemoveErasing.hs
Normal file
@@ -0,0 +1,92 @@
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----------------------------------------------------------------------
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-- |
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-- Maintainer : PL
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/04/18 14:57:29 $
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-- > CVS $Author: peb $
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-- > CVS $Revision: 1.1 $
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--
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-- Removing erasingness from MCFG grammars (as in Ljunglöf 2004, sec 4.5.1)
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-----------------------------------------------------------------------------
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module GF.Conversion.RemoveErasing
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(convertGrammar) where
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import GF.System.Tracing
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import GF.Infra.Print
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import Monad
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import List (mapAccumL)
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import Maybe (mapMaybe)
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import GF.Formalism.Utilities
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import GF.Formalism.GCFG
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import GF.Formalism.MCFG
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import GF.Conversion.Types
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import GF.Data.Assoc
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import GF.Data.SortedList
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import GF.NewParsing.GeneralChart
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convertGrammar :: EGrammar -> MGrammar
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convertGrammar grammar
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= tracePrt "RemoveErasing - nr. nonerasing rules" (prt . length) $
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traceCalcFirst finalChart $
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trace2 "RemoveErasing - nr. nonerasing cats" (prt $ length $ chartLookup finalChart False) $
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trace2 "RemoveErasing - nr. initial ne-cats" (prt $ length initialCats) $
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trace2 "RemoveErasing - nr. erasing rules" (prt $ length grammar) $
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newGrammar
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where newGrammar = [ rule | NR rule <- chartLookup finalChart True ]
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finalChart = buildChart keyof [newRules rulesByCat] initialCats
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initialCats = initialCatsBU rulesByCat
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rulesByCat = accumAssoc id [ (cat, rule) | rule@(Rule (Abs cat _ _) _) <- grammar ]
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data Item r c = NR r | NC c deriving (Eq, Ord, Show)
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keyof (NR _) = True
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keyof (NC _) = False
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newRules grammar chart (NR (Rule (Abs _ cats _) _))
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= [ NC cat | cat@(MCat _ lbls) <- cats, not (null lbls) ]
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newRules grammar chart (NC newCat@(MCat cat lbls))
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= do Rule (Abs _ args (Name fun profile)) (Cnc _ _ lins0) <- grammar ? cat
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let lins = [ lin | lin@(Lin lbl _) <- lins0,
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lbl `elem` lbls ]
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argsInLin = listAssoc $
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map (\((n,c),l) -> (n, MCat c l)) $
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groupPairs $ nubsort $
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[ ((nr, cat), lbl) |
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Lin _ lin <- lins,
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Cat (cat, lbl, nr) <- lin ]
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newArgs = mapMaybe (lookupAssoc argsInLin) [0 .. length args-1]
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argLbls = [ lbls | MCat _ lbls <- newArgs ]
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newLins = [ Lin lbl newLin | Lin lbl lin <- lins,
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let newLin = map (mapSymbol cnvCat id) lin ]
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cnvCat (cat, lbl, nr) = (mcat, lbl, nr')
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where Just mcat = lookupAssoc argsInLin nr
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Unify [nr'] = newProfile !! nr
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nonEmptyCat (Cat (MCat _ [], _, _)) = False
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nonEmptyCat _ = True
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newProfile = snd $ mapAccumL accumProf 0 $
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map (lookupAssoc argsInLin) [0 .. length args-1]
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accumProf nr = maybe (nr, Unify []) $ const (nr+1, Unify [nr])
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newName = Name fun (newProfile `composeProfiles` profile)
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return $ NR (Rule (Abs newCat newArgs newName) (Cnc lbls argLbls newLins))
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initialCatsBU grammar
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= [ NC (MCat cat [lbl]) | (cat, rules) <- aAssocs grammar,
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let Rule _ (Cnc lbls _ _) = head rules,
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lbl <- lbls ]
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@@ -4,9 +4,9 @@
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-- Stability : (stable)
|
||||
-- Portability : (portable)
|
||||
--
|
||||
-- > CVS $Date: 2005/04/14 18:41:21 $
|
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-- > CVS $Date: 2005/04/18 14:55:32 $
|
||||
-- > CVS $Author: peb $
|
||||
-- > CVS $Revision: 1.1 $
|
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-- > CVS $Revision: 1.2 $
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--
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-- Instantiating all types which only have one single element.
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--
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@@ -30,7 +30,7 @@ import List (mapAccumL)
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convertGrammar :: SGrammar -> SGrammar
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convertGrammar grammar = if singles == emptyAssoc then grammar
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else tracePrt "#singleton-removed rules" (prt . length) $
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else tracePrt "RemoveSingletons - nr. non-singleton rules" (prt . length) $
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map (convertRule singles) grammar
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where singles = calcSingletons grammar
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@@ -71,7 +71,7 @@ instantiateLin newArgs = inst
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calcSingletons :: SGrammar -> Assoc SCat (SyntaxForest Fun, Maybe STerm)
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calcSingletons rules = listAssoc singleCats
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where singleCats = tracePrt "singleton cats" (prtSep " ") $
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where singleCats = tracePrt "RemoveSingletons - singleton cats" (prtSep " ") $
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[ (cat, (constantNameToForest name, lin)) |
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(cat, [([], name, lin)]) <- rulesByCat ]
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rulesByCat = groupPairs $ nubsort
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@@ -4,9 +4,9 @@
|
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-- Stability : (stable)
|
||||
-- Portability : (portable)
|
||||
--
|
||||
-- > CVS $Date: 2005/04/14 11:42:05 $
|
||||
-- > CVS $Date: 2005/04/18 14:55:32 $
|
||||
-- > CVS $Author: peb $
|
||||
-- > CVS $Revision: 1.3 $
|
||||
-- > CVS $Revision: 1.4 $
|
||||
--
|
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-- Calculating the finiteness of each type in a grammar
|
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-----------------------------------------------------------------------------
|
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@@ -31,7 +31,7 @@ import Ident (Ident(..))
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type CnvMonad a = BacktrackM () a
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convertGrammar :: SGrammar -> SGrammar
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convertGrammar rules = tracePrt "#finite simpleGFC rules" (prt . length) $
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convertGrammar rules = tracePrt "SimpleToFinie - nr. 'finite' rules" (prt . length) $
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solutions cnvMonad ()
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where split = calcSplitable rules
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cnvMonad = member rules >>= convertRule split
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@@ -101,7 +101,7 @@ calcSplitable rules = (listAssoc splitableCat2Funs, listAssoc splitableFun2Cat)
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-- all cats that are splitable
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splitableCats = listSet $
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tracePrt "finite categories to split" prt $
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tracePrt "SimpleToFinite - finite categories to split" prt $
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(nondepCats <**> depCats) <\\> resultCats
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-- all result cats for some pure function
|
||||
|
||||
@@ -4,9 +4,9 @@
|
||||
-- Stability : (stable)
|
||||
-- Portability : (portable)
|
||||
--
|
||||
-- > CVS $Date: 2005/04/12 10:49:44 $
|
||||
-- > CVS $Date: 2005/04/18 14:55:32 $
|
||||
-- > CVS $Author: peb $
|
||||
-- > CVS $Revision: 1.2 $
|
||||
-- > CVS $Revision: 1.3 $
|
||||
--
|
||||
-- All different conversions from SimpleGFC to MCFG
|
||||
-----------------------------------------------------------------------------
|
||||
@@ -20,7 +20,7 @@ import qualified GF.Conversion.SimpleToMCFG.Strict as Strict
|
||||
import qualified GF.Conversion.SimpleToMCFG.Nondet as Nondet
|
||||
import qualified GF.Conversion.SimpleToMCFG.Coercions as Coerce
|
||||
|
||||
convertGrammarNondet, convertGrammarStrict :: SGrammar -> MGrammar
|
||||
convertGrammarNondet, convertGrammarStrict :: SGrammar -> EGrammar
|
||||
convertGrammarNondet = Coerce.addCoercions . Nondet.convertGrammar
|
||||
convertGrammarStrict = Strict.convertGrammar
|
||||
|
||||
|
||||
@@ -4,9 +4,9 @@
|
||||
-- Stability : (stable)
|
||||
-- Portability : (portable)
|
||||
--
|
||||
-- > CVS $Date: 2005/04/12 10:49:44 $
|
||||
-- > CVS $Date: 2005/04/18 14:55:32 $
|
||||
-- > CVS $Author: peb $
|
||||
-- > CVS $Revision: 1.2 $
|
||||
-- > CVS $Revision: 1.3 $
|
||||
--
|
||||
-- Adding coercion functions to a MCFG if necessary.
|
||||
-----------------------------------------------------------------------------
|
||||
@@ -27,25 +27,26 @@ import List (groupBy)
|
||||
|
||||
----------------------------------------------------------------------
|
||||
|
||||
addCoercions :: MGrammar -> MGrammar
|
||||
addCoercions :: EGrammar -> EGrammar
|
||||
addCoercions rules = coercions ++ rules
|
||||
where (allHeads, allArgs) = unzip [ ((head, lbls), nubsort args) |
|
||||
Rule (Abs head args _) (Cnc lbls _ _) <- rules ]
|
||||
allHeadSet = nubsort allHeads
|
||||
allArgSet = union allArgs <\\> map fst allHeadSet
|
||||
coercions = tracePrt "#MCFG coercions" (prt . length) $
|
||||
coercions = tracePrt "SimpleToMCFG.Coercions - nr. MCFG coercions" (prt . length) $
|
||||
concat $
|
||||
tracePrt "#MCFG coercions per category" (prtList . map length) $
|
||||
tracePrt "SimpleToMCFG.Coerciions - nr. MCFG coercions per category"
|
||||
(prtList . map length) $
|
||||
combineCoercions
|
||||
(groupBy sameCatFst allHeadSet)
|
||||
(groupBy sameCat allArgSet)
|
||||
sameCatFst a b = sameCat (fst a) (fst b)
|
||||
(groupBy sameECatFst allHeadSet)
|
||||
(groupBy sameECat allArgSet)
|
||||
sameECatFst a b = sameECat (fst a) (fst b)
|
||||
|
||||
|
||||
combineCoercions [] _ = []
|
||||
combineCoercions _ [] = []
|
||||
combineCoercions allHeads'@(heads:allHeads) allArgs'@(args:allArgs)
|
||||
= case compare (mcat2scat $ fst $ head heads) (mcat2scat $ head args) of
|
||||
= case compare (ecat2scat $ fst $ head heads) (ecat2scat $ head args) of
|
||||
LT -> combineCoercions allHeads allArgs'
|
||||
GT -> combineCoercions allHeads' allArgs
|
||||
EQ -> makeCoercion heads args : combineCoercions allHeads allArgs
|
||||
@@ -53,9 +54,9 @@ combineCoercions allHeads'@(heads:allHeads) allArgs'@(args:allArgs)
|
||||
|
||||
makeCoercion heads args
|
||||
= [ Rule (Abs arg [head] coercionName) (Cnc lbls [lbls] lins) |
|
||||
(head@(MCat _ headCns), lbls) <- heads,
|
||||
(head@(ECat _ headCns), lbls) <- heads,
|
||||
let lins = [ Lin lbl [Cat (head, lbl, 0)] | lbl <- lbls ],
|
||||
arg@(MCat _ argCns) <- args,
|
||||
arg@(ECat _ argCns) <- args,
|
||||
argCns `subset` headCns ]
|
||||
|
||||
|
||||
|
||||
@@ -4,9 +4,9 @@
|
||||
-- Stability : (stable)
|
||||
-- Portability : (portable)
|
||||
--
|
||||
-- > CVS $Date: 2005/04/12 10:49:44 $
|
||||
-- > CVS $Date: 2005/04/18 14:55:32 $
|
||||
-- > CVS $Author: peb $
|
||||
-- > CVS $Revision: 1.2 $
|
||||
-- > CVS $Revision: 1.3 $
|
||||
--
|
||||
-- Converting SimpleGFC grammars to MCFG grammars, nondeterministically.
|
||||
-- Afterwards, the grammar has to be extended with coercion functions,
|
||||
@@ -40,22 +40,22 @@ import GF.Data.BacktrackM
|
||||
|
||||
type CnvMonad a = BacktrackM Env a
|
||||
|
||||
type Env = (MCat, [MCat], LinRec, [SLinType])
|
||||
type Env = (ECat, [ECat], LinRec, [SLinType])
|
||||
type LinRec = [Lin SCat MLabel Token]
|
||||
|
||||
|
||||
----------------------------------------------------------------------
|
||||
-- main conversion function
|
||||
|
||||
convertGrammar :: SGrammar -> MGrammar
|
||||
convertGrammar rules = tracePrt "Nondet conversion: #MCFG rules" (prt . length) $
|
||||
convertGrammar :: SGrammar -> EGrammar
|
||||
convertGrammar rules = tracePrt "SimpleToMCFG.Nondet - nr. MCFG rules" (prt . length) $
|
||||
solutions conversion undefined
|
||||
where conversion = member rules >>= convertRule
|
||||
|
||||
convertRule :: SRule -> CnvMonad MRule
|
||||
convertRule :: SRule -> CnvMonad ERule
|
||||
convertRule (Rule (Abs decl decls fun) (Cnc ctype ctypes (Just term)))
|
||||
= do let cat : args = map decl2cat (decl : decls)
|
||||
writeState (initialMCat cat, map initialMCat args, [], ctypes)
|
||||
writeState (initialECat cat, map initialECat args, [], ctypes)
|
||||
rterm <- simplifyTerm term
|
||||
reduceTerm ctype emptyPath rterm
|
||||
(newCat, newArgs, linRec, _) <- readState
|
||||
@@ -158,13 +158,13 @@ readArgCTypes = do (_, _, _, env) <- readState
|
||||
updateArg :: Int -> Constraint -> CnvMonad ()
|
||||
updateArg arg cn
|
||||
= do (head, args, lins, env) <- readState
|
||||
args' <- updateNth (addToMCat cn) arg args
|
||||
args' <- updateNth (addToECat cn) arg args
|
||||
writeState (head, args', lins, env)
|
||||
|
||||
updateHead :: Constraint -> CnvMonad ()
|
||||
updateHead cn
|
||||
= do (head, args, lins, env) <- readState
|
||||
head' <- addToMCat cn head
|
||||
head' <- addToECat cn head
|
||||
writeState (head', args, lins, env)
|
||||
|
||||
updateLin :: Constraint -> CnvMonad ()
|
||||
@@ -182,8 +182,8 @@ term2lins (Empty) = return []
|
||||
term2lins (Variants terms) = terms >>= term2lins
|
||||
term2lins term = error $ "term2lins: " ++ show term
|
||||
|
||||
addToMCat :: Constraint -> MCat -> CnvMonad MCat
|
||||
addToMCat cn (MCat cat cns) = liftM (MCat cat) $ addConstraint cn cns
|
||||
addToECat :: Constraint -> ECat -> CnvMonad ECat
|
||||
addToECat cn (ECat cat cns) = liftM (ECat cat) $ addConstraint cn cns
|
||||
|
||||
addConstraint :: Constraint -> [Constraint] -> CnvMonad [Constraint]
|
||||
addConstraint cn0 (cn : cns)
|
||||
|
||||
@@ -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 $
|
||||
--
|
||||
-- Converting SimpleGFC grammars to MCFG grammars, deterministic.
|
||||
--
|
||||
@@ -16,7 +16,8 @@
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
|
||||
module GF.Conversion.SimpleToMCFG.Strict where -- (convertGrammar) where
|
||||
module GF.Conversion.SimpleToMCFG.Strict
|
||||
(convertGrammar) where
|
||||
|
||||
import GF.System.Tracing
|
||||
import GF.Infra.Print
|
||||
@@ -37,18 +38,18 @@ import GF.Data.SortedList
|
||||
|
||||
type CnvMonad a = BacktrackM () a
|
||||
|
||||
convertGrammar :: SGrammar -> MGrammar
|
||||
convertGrammar rules = tracePrt "Strict conversion: #MCFG rules" (prt . length) $
|
||||
convertGrammar :: SGrammar -> EGrammar
|
||||
convertGrammar rules = tracePrt "SimpleToMCFG.Strict - nr. MCFG rules" (prt . length) $
|
||||
solutions conversion undefined
|
||||
where conversion = member rules >>= convertRule
|
||||
|
||||
convertRule :: SRule -> CnvMonad MRule
|
||||
convertRule :: SRule -> CnvMonad ERule
|
||||
convertRule (Rule (Abs decl decls fun) (Cnc ctype ctypes (Just term)))
|
||||
= do let cat : args = map decl2cat (decl : decls)
|
||||
args_ctypes = zip3 [0..] args ctypes
|
||||
instArgs <- mapM enumerateArg args_ctypes
|
||||
let instTerm = substitutePaths instArgs term
|
||||
newCat <- extractMCat cat ctype instTerm
|
||||
newCat <- extractECat cat ctype instTerm
|
||||
newArgs <- mapM (extractArg instArgs) args_ctypes
|
||||
let linRec = strPaths ctype instTerm >>= extractLin newArgs
|
||||
let newLinRec = map (instantiateArgs newArgs) linRec
|
||||
@@ -59,11 +60,11 @@ convertRule _ = failure
|
||||
----------------------------------------------------------------------
|
||||
-- category extraction
|
||||
|
||||
extractArg :: [STerm] -> (Int, SCat, SLinType) -> CnvMonad MCat
|
||||
extractArg args (nr, cat, ctype) = extractMCat cat ctype (args !! nr)
|
||||
extractArg :: [STerm] -> (Int, SCat, SLinType) -> CnvMonad ECat
|
||||
extractArg args (nr, cat, ctype) = extractECat cat ctype (args !! nr)
|
||||
|
||||
extractMCat :: SCat -> SLinType -> STerm -> CnvMonad MCat
|
||||
extractMCat cat ctype term = member $ map (MCat cat) $ parPaths ctype term
|
||||
extractECat :: SCat -> SLinType -> STerm -> CnvMonad ECat
|
||||
extractECat cat ctype term = member $ map (ECat cat) $ parPaths ctype term
|
||||
|
||||
enumerateArg :: (Int, SCat, SLinType) -> CnvMonad STerm
|
||||
enumerateArg (nr, cat, ctype) = member $ enumerateTerms (Just (Arg nr cat emptyPath)) ctype
|
||||
@@ -117,7 +118,7 @@ strPaths ctype term = [ (path, variants values) | (path, values) <- groupPairs p
|
||||
----------------------------------------------------------------------
|
||||
-- linearization extraction
|
||||
|
||||
extractLin :: [MCat] -> (SPath, STerm) -> [Lin MCat MLabel Token]
|
||||
extractLin :: [ECat] -> (SPath, STerm) -> [Lin ECat MLabel Token]
|
||||
extractLin args (path, term) = map (Lin path) (convertLin term)
|
||||
where convertLin (t1 :++ t2) = liftM2 (++) (convertLin t1) (convertLin t2)
|
||||
convertLin (Empty) = [[]]
|
||||
|
||||
@@ -4,9 +4,9 @@
|
||||
-- Stability : (stable)
|
||||
-- Portability : (portable)
|
||||
--
|
||||
-- > CVS $Date: 2005/04/16 05:40:49 $
|
||||
-- > CVS $Date: 2005/04/18 14:55:32 $
|
||||
-- > CVS $Author: peb $
|
||||
-- > CVS $Revision: 1.4 $
|
||||
-- > CVS $Revision: 1.5 $
|
||||
--
|
||||
-- All possible instantiations of different grammar formats used in conversion from GFC
|
||||
-----------------------------------------------------------------------------
|
||||
@@ -58,7 +58,8 @@ instance Functor Profile where
|
||||
fmap f (Constant a) = Constant (f a)
|
||||
fmap f (Unify xs) = Unify xs
|
||||
|
||||
-- | a function name where the profile does not contain
|
||||
-- | a function name where the profile does not contain arguments
|
||||
-- (i.e. denoting a constant, not a function)
|
||||
constantNameToForest :: Name -> SyntaxForest Fun
|
||||
constantNameToForest name@(Name fun profile) = FNode fun [map unConstant profile]
|
||||
where unConstant (Constant a) = a
|
||||
@@ -120,23 +121,23 @@ type SDecl = Decl SCat
|
||||
----------------------------------------------------------------------
|
||||
-- * erasing MCFG
|
||||
|
||||
type MGrammar = MCFGrammar MCat Name MLabel Token
|
||||
type MRule = MCFRule MCat Name MLabel Token
|
||||
data MCat = MCat SCat [Constraint] deriving (Eq, Ord, Show)
|
||||
type MLabel = SPath
|
||||
type EGrammar = MCFGrammar ECat Name ELabel Token
|
||||
type ERule = MCFRule ECat Name ELabel Token
|
||||
data ECat = ECat SCat [Constraint] deriving (Eq, Ord, Show)
|
||||
type ELabel = SPath
|
||||
|
||||
type Constraint = (SPath, STerm)
|
||||
|
||||
-- ** type coercions etc
|
||||
|
||||
initialMCat :: SCat -> MCat
|
||||
initialMCat cat = MCat cat []
|
||||
initialECat :: SCat -> ECat
|
||||
initialECat cat = ECat cat []
|
||||
|
||||
mcat2scat :: MCat -> SCat
|
||||
mcat2scat (MCat cat _) = cat
|
||||
ecat2scat :: ECat -> SCat
|
||||
ecat2scat (ECat cat _) = cat
|
||||
|
||||
sameCat :: MCat -> MCat -> Bool
|
||||
sameCat mc1 mc2 = mcat2scat mc1 == mcat2scat mc2
|
||||
sameECat :: ECat -> ECat -> Bool
|
||||
sameECat ec1 ec2 = ecat2scat ec1 == ecat2scat ec2
|
||||
|
||||
coercionName :: Name
|
||||
coercionName = Name Ident.wildIdent [Unify [0]]
|
||||
@@ -148,33 +149,31 @@ isCoercion _ = False
|
||||
----------------------------------------------------------------------
|
||||
-- * nonerasing MCFG
|
||||
|
||||
type NGrammar = MCFGrammar NCat Name NLabel Token
|
||||
type NRule = MCFRule NCat Name NLabel Token
|
||||
data NCat = NCat MCat [MLabel] deriving (Eq, Ord, Show)
|
||||
type NLabel = MLabel
|
||||
type MGrammar = MCFGrammar MCat Name MLabel Token
|
||||
type MRule = MCFRule MCat Name MLabel Token
|
||||
data MCat = MCat ECat [ELabel] deriving (Eq, Ord, Show)
|
||||
type MLabel = ELabel
|
||||
|
||||
ncat2mcat :: NCat -> MCat
|
||||
ncat2mcat (NCat mcat _) = mcat
|
||||
mcat2ecat :: MCat -> ECat
|
||||
mcat2ecat (MCat mcat _) = mcat
|
||||
|
||||
----------------------------------------------------------------------
|
||||
-- * CFG
|
||||
|
||||
type CGrammar = CFGrammar CCat Name Token
|
||||
type CRule = CFRule CCat Name Token
|
||||
|
||||
data CCat = CCat MCat MLabel
|
||||
deriving (Eq, Ord, Show)
|
||||
data CCat = CCat ECat ELabel deriving (Eq, Ord, Show)
|
||||
|
||||
----------------------------------------------------------------------
|
||||
-- * pretty-printing
|
||||
|
||||
instance Print MCat where
|
||||
prt (MCat cat constrs) = prt cat ++ "{" ++
|
||||
instance Print ECat where
|
||||
prt (ECat cat constrs) = prt cat ++ "{" ++
|
||||
concat [ prt path ++ "=" ++ prt term ++ ";" |
|
||||
(path, term) <- constrs ] ++ "}"
|
||||
|
||||
instance Print NCat where
|
||||
prt (NCat cat labels) = prt cat ++ prt labels
|
||||
instance Print MCat where
|
||||
prt (MCat cat labels) = prt cat ++ prt labels
|
||||
|
||||
instance Print CCat where
|
||||
prt (CCat cat label) = prt cat ++ prt label
|
||||
|
||||
Reference in New Issue
Block a user