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

1 files changed, 532 insertions, 0 deletions

diff --git a/src-3.0/GF/Source/PrintGF.hs b/src-3.0/GF/Source/PrintGF.hs
new file mode 100644
index 000000000..0a260f5bf
--- /dev/null
+++ b/src-3.0/GF/Source/PrintGF.hs
@@ -0,0 +1,532 @@
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
+module GF.Source.PrintGF where
+
+-- pretty-printer generated by the BNF converter
+
+import GF.Source.AbsGF
+import Char
+
+-- the top-level printing method
+printTree :: Print a => a -> String
+printTree = render . prt 0
+
+type Doc = [ShowS] -> [ShowS]
+
+doc :: ShowS -> Doc
+doc = (:)
+
+render :: Doc -> String
+render d = rend 0 (map ($ "") $ d []) "" where
+  rend i ss = case ss of
+    "["      :ts -> showChar '[' . rend i ts
+    "("      :ts -> showChar '(' . rend i ts
+    "{"      :ts -> showChar '{' . new (i+1) . rend (i+1) ts
+    "}" : ";":ts -> new (i-1) . space "}" . showChar ';' . new (i-1) . rend (i-1) ts
+    "}"      :ts -> new (i-1) . showChar '}' . new (i-1) . rend (i-1) ts
+    ";"      :ts -> showChar ';' . new i . rend i ts
+    t  : "," :ts -> showString t . space "," . rend i ts
+    t  : ")" :ts -> showString t . showChar ')' . rend i ts
+    t  : "]" :ts -> showString t . showChar ']' . rend i ts
+    t        :ts -> space t . rend i ts
+    _            -> id
+  new i   = showChar '\n' . replicateS (2*i) (showChar ' ') . dropWhile isSpace
+  space t = showString t . (\s -> if null s then "" else (' ':s))
+
+parenth :: Doc -> Doc
+parenth ss = doc (showChar '(') . ss . doc (showChar ')')
+
+concatS :: [ShowS] -> ShowS
+concatS = foldr (.) id
+
+concatD :: [Doc] -> Doc
+concatD = foldr (.) id
+
+replicateS :: Int -> ShowS -> ShowS
+replicateS n f = concatS (replicate n f)
+
+-- the printer class does the job
+class Print a where
+  prt :: Int -> a -> Doc
+  prtList :: [a] -> Doc
+  prtList = concatD . map (prt 0)
+
+instance Print a => Print [a] where
+  prt _ = prtList
+
+instance Print Char where
+  prt _ s = doc (showChar '\'' . mkEsc '\'' s . showChar '\'')
+  prtList s = doc (showChar '"' . concatS (map (mkEsc '"') s) . showChar '"')
+
+mkEsc :: Char -> Char -> ShowS
+mkEsc q s = case s of
+  _ | s == q -> showChar '\\' . showChar s
+  '\\'-> showString "\\\\"
+  '\n' -> showString "\\n"
+  '\t' -> showString "\\t"
+  _ -> showChar s
+
+prPrec :: Int -> Int -> Doc -> Doc
+prPrec i j = if j<i then parenth else id
+
+
+instance Print Integer where
+  prt _ x = doc (shows x)
+
+
+instance Print Double where
+  prt _ x = doc (shows x)
+
+
+
+instance Print LString where
+  prt _ (LString i) = doc (showString i)
+
+
+instance Print PIdent where
+  prt _ (PIdent (_,i)) = doc (showString i)
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+
+
+instance Print Grammar where
+  prt i e = case e of
+   Gr moddefs -> prPrec i 0 (concatD [prt 0 moddefs])
+
+
+instance Print ModDef where
+  prt i e = case e of
+   MMain pident0 pident concspecs -> prPrec i 0 (concatD [doc (showString "grammar") , prt 0 pident0 , doc (showString "=") , doc (showString "{") , doc (showString "abstract") , doc (showString "=") , prt 0 pident , doc (showString ";") , prt 0 concspecs , doc (showString "}")])
+   MModule complmod modtype modbody -> prPrec i 0 (concatD [prt 0 complmod , prt 0 modtype , doc (showString "=") , prt 0 modbody])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print ConcSpec where
+  prt i e = case e of
+   ConcSpec pident concexp -> prPrec i 0 (concatD [prt 0 pident , doc (showString "=") , prt 0 concexp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print ConcExp where
+  prt i e = case e of
+   ConcExp pident transfers -> prPrec i 0 (concatD [prt 0 pident , prt 0 transfers])
+
+
+instance Print Transfer where
+  prt i e = case e of
+   TransferIn open -> prPrec i 0 (concatD [doc (showString "(") , doc (showString "transfer") , doc (showString "in") , prt 0 open , doc (showString ")")])
+   TransferOut open -> prPrec i 0 (concatD [doc (showString "(") , doc (showString "transfer") , doc (showString "out") , prt 0 open , doc (showString ")")])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print ModType where
+  prt i e = case e of
+   MTAbstract pident -> prPrec i 0 (concatD [doc (showString "abstract") , prt 0 pident])
+   MTResource pident -> prPrec i 0 (concatD [doc (showString "resource") , prt 0 pident])
+   MTInterface pident -> prPrec i 0 (concatD [doc (showString "interface") , prt 0 pident])
+   MTConcrete pident0 pident -> prPrec i 0 (concatD [doc (showString "concrete") , prt 0 pident0 , doc (showString "of") , prt 0 pident])
+   MTInstance pident0 pident -> prPrec i 0 (concatD [doc (showString "instance") , prt 0 pident0 , doc (showString "of") , prt 0 pident])
+   MTTransfer pident open0 open -> prPrec i 0 (concatD [doc (showString "transfer") , prt 0 pident , doc (showString ":") , prt 0 open0 , doc (showString "->") , prt 0 open])
+
+
+instance Print ModBody where
+  prt i e = case e of
+   MBody extend opens topdefs -> prPrec i 0 (concatD [prt 0 extend , prt 0 opens , doc (showString "{") , prt 0 topdefs , doc (showString "}")])
+   MNoBody includeds -> prPrec i 0 (concatD [prt 0 includeds])
+   MWith included opens -> prPrec i 0 (concatD [prt 0 included , doc (showString "with") , prt 0 opens])
+   MWithBody included opens0 opens topdefs -> prPrec i 0 (concatD [prt 0 included , doc (showString "with") , prt 0 opens0 , doc (showString "**") , prt 0 opens , doc (showString "{") , prt 0 topdefs , doc (showString "}")])
+   MWithE includeds included opens -> prPrec i 0 (concatD [prt 0 includeds , doc (showString "**") , prt 0 included , doc (showString "with") , prt 0 opens])
+   MWithEBody includeds included opens0 opens topdefs -> prPrec i 0 (concatD [prt 0 includeds , doc (showString "**") , prt 0 included , doc (showString "with") , prt 0 opens0 , doc (showString "**") , prt 0 opens , doc (showString "{") , prt 0 topdefs , doc (showString "}")])
+   MReuse pident -> prPrec i 0 (concatD [doc (showString "reuse") , prt 0 pident])
+   MUnion includeds -> prPrec i 0 (concatD [doc (showString "union") , prt 0 includeds])
+
+
+instance Print Extend where
+  prt i e = case e of
+   Ext includeds -> prPrec i 0 (concatD [prt 0 includeds , doc (showString "**")])
+   NoExt  -> prPrec i 0 (concatD [])
+
+
+instance Print Opens where
+  prt i e = case e of
+   NoOpens  -> prPrec i 0 (concatD [])
+   OpenIn opens -> prPrec i 0 (concatD [doc (showString "open") , prt 0 opens , doc (showString "in")])
+
+
+instance Print Open where
+  prt i e = case e of
+   OName pident -> prPrec i 0 (concatD [prt 0 pident])
+   OQualQO qualopen pident -> prPrec i 0 (concatD [doc (showString "(") , prt 0 qualopen , prt 0 pident , doc (showString ")")])
+   OQual qualopen pident0 pident -> prPrec i 0 (concatD [doc (showString "(") , prt 0 qualopen , prt 0 pident0 , doc (showString "=") , prt 0 pident , doc (showString ")")])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print ComplMod where
+  prt i e = case e of
+   CMCompl  -> prPrec i 0 (concatD [])
+   CMIncompl  -> prPrec i 0 (concatD [doc (showString "incomplete")])
+
+
+instance Print QualOpen where
+  prt i e = case e of
+   QOCompl  -> prPrec i 0 (concatD [])
+   QOIncompl  -> prPrec i 0 (concatD [doc (showString "incomplete")])
+   QOInterface  -> prPrec i 0 (concatD [doc (showString "interface")])
+
+
+instance Print Included where
+  prt i e = case e of
+   IAll pident -> prPrec i 0 (concatD [prt 0 pident])
+   ISome pident pidents -> prPrec i 0 (concatD [prt 0 pident , doc (showString "[") , prt 0 pidents , doc (showString "]")])
+   IMinus pident pidents -> prPrec i 0 (concatD [prt 0 pident , doc (showString "-") , doc (showString "[") , prt 0 pidents , doc (showString "]")])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print Def where
+  prt i e = case e of
+   DDecl names exp -> prPrec i 0 (concatD [prt 0 names , doc (showString ":") , prt 0 exp])
+   DDef names exp -> prPrec i 0 (concatD [prt 0 names , doc (showString "=") , prt 0 exp])
+   DPatt name patts exp -> prPrec i 0 (concatD [prt 0 name , prt 0 patts , doc (showString "=") , prt 0 exp])
+   DFull names exp0 exp -> prPrec i 0 (concatD [prt 0 names , doc (showString ":") , prt 0 exp0 , doc (showString "=") , prt 0 exp])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print TopDef where
+  prt i e = case e of
+   DefCat catdefs -> prPrec i 0 (concatD [doc (showString "cat") , prt 0 catdefs])
+   DefFun fundefs -> prPrec i 0 (concatD [doc (showString "fun") , prt 0 fundefs])
+   DefFunData fundefs -> prPrec i 0 (concatD [doc (showString "data") , prt 0 fundefs])
+   DefDef defs -> prPrec i 0 (concatD [doc (showString "def") , prt 0 defs])
+   DefData datadefs -> prPrec i 0 (concatD [doc (showString "data") , prt 0 datadefs])
+   DefTrans defs -> prPrec i 0 (concatD [doc (showString "transfer") , prt 0 defs])
+   DefPar pardefs -> prPrec i 0 (concatD [doc (showString "param") , prt 0 pardefs])
+   DefOper defs -> prPrec i 0 (concatD [doc (showString "oper") , prt 0 defs])
+   DefLincat printdefs -> prPrec i 0 (concatD [doc (showString "lincat") , prt 0 printdefs])
+   DefLindef defs -> prPrec i 0 (concatD [doc (showString "lindef") , prt 0 defs])
+   DefLin defs -> prPrec i 0 (concatD [doc (showString "lin") , prt 0 defs])
+   DefPrintCat printdefs -> prPrec i 0 (concatD [doc (showString "printname") , doc (showString "cat") , prt 0 printdefs])
+   DefPrintFun printdefs -> prPrec i 0 (concatD [doc (showString "printname") , doc (showString "fun") , prt 0 printdefs])
+   DefFlag flagdefs -> prPrec i 0 (concatD [doc (showString "flags") , prt 0 flagdefs])
+   DefPrintOld printdefs -> prPrec i 0 (concatD [doc (showString "printname") , prt 0 printdefs])
+   DefLintype defs -> prPrec i 0 (concatD [doc (showString "lintype") , prt 0 defs])
+   DefPattern defs -> prPrec i 0 (concatD [doc (showString "pattern") , prt 0 defs])
+   DefPackage pident topdefs -> prPrec i 0 (concatD [doc (showString "package") , prt 0 pident , doc (showString "=") , doc (showString "{") , prt 0 topdefs , doc (showString "}") , doc (showString ";")])
+   DefVars defs -> prPrec i 0 (concatD [doc (showString "var") , prt 0 defs])
+   DefTokenizer pident -> prPrec i 0 (concatD [doc (showString "tokenizer") , prt 0 pident , doc (showString ";")])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print CatDef where
+  prt i e = case e of
+   SimpleCatDef pident ddecls -> prPrec i 0 (concatD [prt 0 pident , prt 0 ddecls])
+   ListCatDef pident ddecls -> prPrec i 0 (concatD [doc (showString "[") , prt 0 pident , prt 0 ddecls , doc (showString "]")])
+   ListSizeCatDef pident ddecls n -> prPrec i 0 (concatD [doc (showString "[") , prt 0 pident , prt 0 ddecls , doc (showString "]") , doc (showString "{") , prt 0 n , doc (showString "}")])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print FunDef where
+  prt i e = case e of
+   FunDef pidents exp -> prPrec i 0 (concatD [prt 0 pidents , doc (showString ":") , prt 0 exp])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print DataDef where
+  prt i e = case e of
+   DataDef pident dataconstrs -> prPrec i 0 (concatD [prt 0 pident , doc (showString "=") , prt 0 dataconstrs])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print DataConstr where
+  prt i e = case e of
+   DataId pident -> prPrec i 0 (concatD [prt 0 pident])
+   DataQId pident0 pident -> prPrec i 0 (concatD [prt 0 pident0 , doc (showString ".") , prt 0 pident])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString "|") , prt 0 xs])
+
+instance Print ParDef where
+  prt i e = case e of
+   ParDefDir pident parconstrs -> prPrec i 0 (concatD [prt 0 pident , doc (showString "=") , prt 0 parconstrs])
+   ParDefIndir pident0 pident -> prPrec i 0 (concatD [prt 0 pident0 , doc (showString "=") , doc (showString "(") , doc (showString "in") , prt 0 pident , doc (showString ")")])
+   ParDefAbs pident -> prPrec i 0 (concatD [prt 0 pident])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print ParConstr where
+  prt i e = case e of
+   ParConstr pident ddecls -> prPrec i 0 (concatD [prt 0 pident , prt 0 ddecls])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString "|") , prt 0 xs])
+
+instance Print PrintDef where
+  prt i e = case e of
+   PrintDef names exp -> prPrec i 0 (concatD [prt 0 names , doc (showString "=") , prt 0 exp])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print FlagDef where
+  prt i e = case e of
+   FlagDef pident0 pident -> prPrec i 0 (concatD [prt 0 pident0 , doc (showString "=") , prt 0 pident])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Name where
+  prt i e = case e of
+   IdentName pident -> prPrec i 0 (concatD [prt 0 pident])
+   ListName pident -> prPrec i 0 (concatD [doc (showString "[") , prt 0 pident , doc (showString "]")])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print LocDef where
+  prt i e = case e of
+   LDDecl pidents exp -> prPrec i 0 (concatD [prt 0 pidents , doc (showString ":") , prt 0 exp])
+   LDDef pidents exp -> prPrec i 0 (concatD [prt 0 pidents , doc (showString "=") , prt 0 exp])
+   LDFull pidents exp0 exp -> prPrec i 0 (concatD [prt 0 pidents , doc (showString ":") , prt 0 exp0 , doc (showString "=") , prt 0 exp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Exp where
+  prt i e = case e of
+   EIdent pident -> prPrec i 6 (concatD [prt 0 pident])
+   EConstr pident -> prPrec i 6 (concatD [doc (showString "{") , prt 0 pident , doc (showString "}")])
+   ECons pident -> prPrec i 6 (concatD [doc (showString "%") , prt 0 pident , doc (showString "%")])
+   ESort sort -> prPrec i 6 (concatD [prt 0 sort])
+   EString str -> prPrec i 6 (concatD [prt 0 str])
+   EInt n -> prPrec i 6 (concatD [prt 0 n])
+   EFloat d -> prPrec i 6 (concatD [prt 0 d])
+   EMeta  -> prPrec i 6 (concatD [doc (showString "?")])
+   EEmpty  -> prPrec i 6 (concatD [doc (showString "[") , doc (showString "]")])
+   EData  -> prPrec i 6 (concatD [doc (showString "data")])
+   EList pident exps -> prPrec i 6 (concatD [doc (showString "[") , prt 0 pident , prt 0 exps , doc (showString "]")])
+   EStrings str -> prPrec i 6 (concatD [doc (showString "[") , prt 0 str , doc (showString "]")])
+   ERecord locdefs -> prPrec i 6 (concatD [doc (showString "{") , prt 0 locdefs , doc (showString "}")])
+   ETuple tuplecomps -> prPrec i 6 (concatD [doc (showString "<") , prt 0 tuplecomps , doc (showString ">")])
+   EIndir pident -> prPrec i 6 (concatD [doc (showString "(") , doc (showString "in") , prt 0 pident , doc (showString ")")])
+   ETyped exp0 exp -> prPrec i 6 (concatD [doc (showString "<") , prt 0 exp0 , doc (showString ":") , prt 0 exp , doc (showString ">")])
+   EProj exp label -> prPrec i 5 (concatD [prt 5 exp , doc (showString ".") , prt 0 label])
+   EQConstr pident0 pident -> prPrec i 5 (concatD [doc (showString "{") , prt 0 pident0 , doc (showString ".") , prt 0 pident , doc (showString "}")])
+   EQCons pident0 pident -> prPrec i 5 (concatD [doc (showString "%") , prt 0 pident0 , doc (showString ".") , prt 0 pident])
+   EApp exp0 exp -> prPrec i 4 (concatD [prt 4 exp0 , prt 5 exp])
+   ETable cases -> prPrec i 4 (concatD [doc (showString "table") , doc (showString "{") , prt 0 cases , doc (showString "}")])
+   ETTable exp cases -> prPrec i 4 (concatD [doc (showString "table") , prt 6 exp , doc (showString "{") , prt 0 cases , doc (showString "}")])
+   EVTable exp exps -> prPrec i 4 (concatD [doc (showString "table") , prt 6 exp , doc (showString "[") , prt 0 exps , doc (showString "]")])
+   ECase exp cases -> prPrec i 4 (concatD [doc (showString "case") , prt 0 exp , doc (showString "of") , doc (showString "{") , prt 0 cases , doc (showString "}")])
+   EVariants exps -> prPrec i 4 (concatD [doc (showString "variants") , doc (showString "{") , prt 0 exps , doc (showString "}")])
+   EPre exp alterns -> prPrec i 4 (concatD [doc (showString "pre") , doc (showString "{") , prt 0 exp , doc (showString ";") , prt 0 alterns , doc (showString "}")])
+   EStrs exps -> prPrec i 4 (concatD [doc (showString "strs") , doc (showString "{") , prt 0 exps , doc (showString "}")])
+   EConAt pident exp -> prPrec i 4 (concatD [prt 0 pident , doc (showString "@") , prt 6 exp])
+   EPatt patt -> prPrec i 4 (concatD [doc (showString "#") , prt 2 patt])
+   EPattType exp -> prPrec i 4 (concatD [doc (showString "pattern") , prt 5 exp])
+   ESelect exp0 exp -> prPrec i 3 (concatD [prt 3 exp0 , doc (showString "!") , prt 4 exp])
+   ETupTyp exp0 exp -> prPrec i 3 (concatD [prt 3 exp0 , doc (showString "*") , prt 4 exp])
+   EExtend exp0 exp -> prPrec i 3 (concatD [prt 3 exp0 , doc (showString "**") , prt 4 exp])
+   EGlue exp0 exp -> prPrec i 1 (concatD [prt 2 exp0 , doc (showString "+") , prt 1 exp])
+   EConcat exp0 exp -> prPrec i 0 (concatD [prt 1 exp0 , doc (showString "++") , prt 0 exp])
+   EAbstr binds exp -> prPrec i 0 (concatD [doc (showString "\\") , prt 0 binds , doc (showString "->") , prt 0 exp])
+   ECTable binds exp -> prPrec i 0 (concatD [doc (showString "\\") , doc (showString "\\") , prt 0 binds , doc (showString "=>") , prt 0 exp])
+   EProd decl exp -> prPrec i 0 (concatD [prt 0 decl , doc (showString "->") , prt 0 exp])
+   ETType exp0 exp -> prPrec i 0 (concatD [prt 3 exp0 , doc (showString "=>") , prt 0 exp])
+   ELet locdefs exp -> prPrec i 0 (concatD [doc (showString "let") , doc (showString "{") , prt 0 locdefs , doc (showString "}") , doc (showString "in") , prt 0 exp])
+   ELetb locdefs exp -> prPrec i 0 (concatD [doc (showString "let") , prt 0 locdefs , doc (showString "in") , prt 0 exp])
+   EWhere exp locdefs -> prPrec i 0 (concatD [prt 3 exp , doc (showString "where") , doc (showString "{") , prt 0 locdefs , doc (showString "}")])
+   EEqs equations -> prPrec i 0 (concatD [doc (showString "fn") , doc (showString "{") , prt 0 equations , doc (showString "}")])
+   EExample exp str -> prPrec i 0 (concatD [doc (showString "in") , prt 5 exp , prt 0 str])
+   ELString lstring -> prPrec i 6 (concatD [prt 0 lstring])
+   ELin pident -> prPrec i 4 (concatD [doc (showString "Lin") , prt 0 pident])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Exps where
+  prt i e = case e of
+   NilExp  -> prPrec i 0 (concatD [])
+   ConsExp exp exps -> prPrec i 0 (concatD [prt 6 exp , prt 0 exps])
+
+
+instance Print Patt where
+  prt i e = case e of
+   PChar  -> prPrec i 2 (concatD [doc (showString "?")])
+   PChars str -> prPrec i 2 (concatD [doc (showString "[") , prt 0 str , doc (showString "]")])
+   PMacro pident -> prPrec i 2 (concatD [doc (showString "#") , prt 0 pident])
+   PM pident0 pident -> prPrec i 2 (concatD [doc (showString "#") , prt 0 pident0 , doc (showString ".") , prt 0 pident])
+   PW  -> prPrec i 2 (concatD [doc (showString "_")])
+   PV pident -> prPrec i 2 (concatD [prt 0 pident])
+   PCon pident -> prPrec i 2 (concatD [doc (showString "{") , prt 0 pident , doc (showString "}")])
+   PQ pident0 pident -> prPrec i 2 (concatD [prt 0 pident0 , doc (showString ".") , prt 0 pident])
+   PInt n -> prPrec i 2 (concatD [prt 0 n])
+   PFloat d -> prPrec i 2 (concatD [prt 0 d])
+   PStr str -> prPrec i 2 (concatD [prt 0 str])
+   PR pattasss -> prPrec i 2 (concatD [doc (showString "{") , prt 0 pattasss , doc (showString "}")])
+   PTup patttuplecomps -> prPrec i 2 (concatD [doc (showString "<") , prt 0 patttuplecomps , doc (showString ">")])
+   PC pident patts -> prPrec i 1 (concatD [prt 0 pident , prt 0 patts])
+   PQC pident0 pident patts -> prPrec i 1 (concatD [prt 0 pident0 , doc (showString ".") , prt 0 pident , prt 0 patts])
+   PDisj patt0 patt -> prPrec i 0 (concatD [prt 0 patt0 , doc (showString "|") , prt 1 patt])
+   PSeq patt0 patt -> prPrec i 0 (concatD [prt 0 patt0 , doc (showString "+") , prt 1 patt])
+   PRep patt -> prPrec i 1 (concatD [prt 2 patt , doc (showString "*")])
+   PAs pident patt -> prPrec i 1 (concatD [prt 0 pident , doc (showString "@") , prt 2 patt])
+   PNeg patt -> prPrec i 1 (concatD [doc (showString "-") , prt 2 patt])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 2 x])
+   x:xs -> (concatD [prt 2 x , prt 0 xs])
+
+instance Print PattAss where
+  prt i e = case e of
+   PA pidents patt -> prPrec i 0 (concatD [prt 0 pidents , doc (showString "=") , prt 0 patt])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Label where
+  prt i e = case e of
+   LIdent pident -> prPrec i 0 (concatD [prt 0 pident])
+   LVar n -> prPrec i 0 (concatD [doc (showString "$") , prt 0 n])
+
+
+instance Print Sort where
+  prt i e = case e of
+   Sort_Type  -> prPrec i 0 (concatD [doc (showString "Type")])
+   Sort_PType  -> prPrec i 0 (concatD [doc (showString "PType")])
+   Sort_Tok  -> prPrec i 0 (concatD [doc (showString "Tok")])
+   Sort_Str  -> prPrec i 0 (concatD [doc (showString "Str")])
+   Sort_Strs  -> prPrec i 0 (concatD [doc (showString "Strs")])
+
+
+instance Print Bind where
+  prt i e = case e of
+   BIdent pident -> prPrec i 0 (concatD [prt 0 pident])
+   BWild  -> prPrec i 0 (concatD [doc (showString "_")])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print Decl where
+  prt i e = case e of
+   DDec binds exp -> prPrec i 0 (concatD [doc (showString "(") , prt 0 binds , doc (showString ":") , prt 0 exp , doc (showString ")")])
+   DExp exp -> prPrec i 0 (concatD [prt 4 exp])
+
+
+instance Print TupleComp where
+  prt i e = case e of
+   TComp exp -> prPrec i 0 (concatD [prt 0 exp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print PattTupleComp where
+  prt i e = case e of
+   PTComp patt -> prPrec i 0 (concatD [prt 0 patt])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print Case where
+  prt i e = case e of
+   Case patt exp -> prPrec i 0 (concatD [prt 0 patt , doc (showString "=>") , prt 0 exp])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Equation where
+  prt i e = case e of
+   Equ patts exp -> prPrec i 0 (concatD [prt 0 patts , doc (showString "->") , prt 0 exp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Altern where
+  prt i e = case e of
+   Alt exp0 exp -> prPrec i 0 (concatD [prt 0 exp0 , doc (showString "/") , prt 0 exp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print DDecl where
+  prt i e = case e of
+   DDDec binds exp -> prPrec i 0 (concatD [doc (showString "(") , prt 0 binds , doc (showString ":") , prt 0 exp , doc (showString ")")])
+   DDExp exp -> prPrec i 0 (concatD [prt 6 exp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print OldGrammar where
+  prt i e = case e of
+   OldGr include topdefs -> prPrec i 0 (concatD [prt 0 include , prt 0 topdefs])
+
+
+instance Print Include where
+  prt i e = case e of
+   NoIncl  -> prPrec i 0 (concatD [])
+   Incl filenames -> prPrec i 0 (concatD [doc (showString "include") , prt 0 filenames])
+
+
+instance Print FileName where
+  prt i e = case e of
+   FString str -> prPrec i 0 (concatD [prt 0 str])
+   FIdent pident -> prPrec i 0 (concatD [prt 0 pident])
+   FSlash filename -> prPrec i 0 (concatD [doc (showString "/") , prt 0 filename])
+   FDot filename -> prPrec i 0 (concatD [doc (showString ".") , prt 0 filename])
+   FMinus filename -> prPrec i 0 (concatD [doc (showString "-") , prt 0 filename])
+   FAddId pident filename -> prPrec i 0 (concatD [prt 0 pident , prt 0 filename])
+
+  prtList es = case es of
+   [x] -> (concatD [prt 0 x , doc (showString ";")])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+