experiment with gfc input

src/GF/Canon/AbsGFC.hs

@@ -1,4 +1,3 @@
-
 module GF.Canon.AbsGFC where
 
 import GF.Infra.Ident --H
@@ -6,12 +5,19 @@ import GF.Infra.Ident --H
 -- Haskell module generated by the BNF converter, except --H
 
 -- newtype Ident = Ident String deriving (Eq,Ord,Show) --H
-
 data Canon =
    MGr [Ident] Ident [Module]
  | Gr [Module]
   deriving (Eq,Ord,Show)
 
+data Line =
+   LMulti [Ident] Ident
+ | LHeader ModType Extend Open
+ | LFlag Flag
+ | LDef Def
+ | LEnd
+  deriving (Eq,Ord,Show)
+
 data Module =
    Mod ModType Extend Open [Flag] [Def]
   deriving (Eq,Ord,Show)
@@ -131,8 +137,8 @@ data Term =
 
 data Tokn =
    KS String
- | KM String
  | KP [String] [Variant]
+ | KM String
   deriving (Eq,Ord,Show)
 
 data Assign =