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

src-3.0/GF/Canon/GFC.hs

@@ -0,0 +1,103 @@
+----------------------------------------------------------------------
+-- |
+-- Module      : GFC
+-- Maintainer  : AR
+-- Stability   : (stable)
+-- Portability : (portable)
+--
+-- > CVS $Date: 2005/04/21 16:21:22 $ 
+-- > CVS $Author: bringert $
+-- > CVS $Revision: 1.12 $
+--
+-- canonical GF. AR 10\/9\/2002 -- 9\/5\/2003 -- 21\/9
+-----------------------------------------------------------------------------
+
+module GF.Canon.GFC (Context,
+	    CanonGrammar,
+	    CanonModInfo,
+	    CanonModule,
+	    CanonAbs,
+	    Info(..),
+	    Printname,
+            prPrintnamesGrammar,
+	    mapInfoTerms,
+	    setFlag,
+            flagIncomplete,
+            isIncompleteCanon,
+            hasFlagCanon,
+            flagCanon
+	   ) where
+
+import GF.Canon.AbsGFC
+import GF.Canon.PrintGFC
+import qualified GF.Grammar.Abstract as A
+
+import GF.Infra.Ident
+import GF.Infra.Option
+import GF.Data.Zipper
+import GF.Data.Operations
+import qualified GF.Infra.Modules as M
+
+import Data.Char
+import Control.Arrow (first)
+
+type Context = [(Ident,Exp)]
+
+type CanonGrammar = M.MGrammar Ident Flag Info
+
+type CanonModInfo = M.ModInfo Ident Flag Info
+
+type CanonModule = (Ident, CanonModInfo)
+
+type CanonAbs = M.Module Ident Option Info
+
+data Info =  
+   AbsCat  A.Context [A.Fun]
+ | AbsFun  A.Type A.Term
+ | AbsTrans A.Term
+
+ | ResPar  [ParDef]
+ | ResOper CType Term     -- ^ global constant
+ | CncCat  CType Term Printname
+ | CncFun  CIdent [ArgVar] Term Printname
+ | AnyInd Bool Ident
+  deriving (Show)
+
+type Printname = Term
+	      
+mapInfoTerms :: (Term -> Term) -> Info -> Info
+mapInfoTerms f i = case i of 
+         ResOper x a -> ResOper x (f a)
+	 CncCat  x a y -> CncCat x (f a) y
+	 CncFun  x y a z -> CncFun x y (f a) z
+	 _ -> i
+
+setFlag :: String -> String -> [Flag] -> [Flag]
+setFlag n v fs = flagCanon n v : [f | f@(Flg (IC n') _) <- fs, n' /= n]
+
+flagIncomplete :: Flag
+flagIncomplete = flagCanon "incomplete" "true"
+
+isIncompleteCanon :: CanonModule -> Bool
+isIncompleteCanon = hasFlagCanon flagIncomplete
+
+hasFlagCanon :: Flag -> CanonModule -> Bool
+hasFlagCanon f (_,M.ModMod mo) = elem f $ M.flags mo
+hasFlagCanon f _ = True ---- safe, useless 
+
+flagCanon :: String -> String -> Flag
+flagCanon f v = Flg (identC f) (identC v)
+
+-- for Ha-Jo 20/2/2005
+
+prPrintnamesGrammar :: CanonGrammar -> String
+prPrintnamesGrammar gr = unlines $ filter (not . null) [prPrint j | 
+  (_,M.ModMod m) <- M.modules gr,  
+  M.isModCnc m,
+  j <- tree2list $ M.jments m
+  ]
+  where
+    prPrint j = case j of
+      (c,CncCat _   _ p) -> "printname cat" +++ A.prt_ c +++ "=" +++ A.prt_ p
+      (c,CncFun _ _ _ p) -> "printname fun" +++ A.prt_ c +++ "=" +++ A.prt_ p
+      _ -> []