printnames are now kept as String instead of Term in PGF

src/runtime/haskell/PGF/Data.hs

@@ -35,7 +35,7 @@ data Concr = Concr {
   opers   :: Map.Map CId Term,      -- oper generated by subex elim
   lincats :: Map.Map CId Term,      -- lin type of a cat
   lindefs :: Map.Map CId Term,      -- lin default of a cat
-  printnames :: Map.Map CId Term,   -- printname of a cat or a fun
+  printnames :: Map.Map CId String, -- printname of a cat or a fun
   paramlincats :: Map.Map CId Term, -- lin type of cat, with printable param names
   parser  :: Maybe ParserInfo       -- parser
   }

src/runtime/haskell/PGF/Linearize.hs

@@ -1,6 +1,6 @@
 {-# LANGUAGE ParallelListComp #-}
 module PGF.Linearize 
-  (linearizes,realize,realizes,linTree, linTreeMark,linearizesMark) where
+  (linearizes,showPrintName,realize,realizes,linTree, linTreeMark,linearizesMark) where
 
 import PGF.CId
 import PGF.Data
@@ -164,3 +164,7 @@ linTreeMark pgf lang = lin [] . expr2tree
 
     bracket  p ts = [kks ("("++show p)] ++ ts ++ [kks ")"]
     sub p i = p ++ [i]
+
+-- | Show the printname of function or category
+showPrintName :: PGF -> Language -> CId -> String
+showPrintName pgf lang id = lookMap "?" id $ printnames $ lookMap (error "no lang") lang $ concretes pgf

src/runtime/haskell/PGF/Macros.hs

@@ -29,10 +29,6 @@ lookParamLincat :: PGF -> CId -> CId -> Term
 lookParamLincat pgf lang fun = 
   lookMap tm0 fun $ paramlincats $ lookMap (error "no lang") lang $ concretes pgf
 
-lookPrintName :: PGF -> CId -> CId -> Term
-lookPrintName pgf lang fun = 
-  lookMap tm0 fun $ printnames $ lookMap (error "no lang") lang $ concretes pgf
-
 lookType :: PGF -> CId -> Type
 lookType pgf f = 
   case lookMap (error $ "lookType " ++ show f) f (funs (abstract pgf)) of