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, 376 insertions, 0 deletions

diff --git a/src-3.0/GF/Canon/PrintGFC.hs b/src-3.0/GF/Canon/PrintGFC.hs
new file mode 100644
index 000000000..437f3a1e9
--- /dev/null
+++ b/src-3.0/GF/Canon/PrintGFC.hs
@@ -0,0 +1,376 @@
+module GF.Canon.PrintGFC where
+
+
+-- pretty-printer generated by the BNF converter, except handhacked spacing --H
+
+import GF.Infra.Ident --H
+import GF.Canon.AbsGFC
+import Data.Char
+
+-- the top-level printing method
+printTree :: Print a => a -> String
+printTree = render . prt 0
+
+type Doc = [ShowS] -> [ShowS]
+
+doc :: ShowS -> Doc
+doc = (:)
+
+docs :: ShowS -> Doc
+docs x y = concatD [spc, doc x, spc ] y
+
+spc = doc (showString "&")
+
+render :: Doc -> String
+render d = rend 0 (map ($ "") $ d []) "" where
+  rend i ss = case ss of
+    "*"    :ts -> realnew . rend i ts --H
+    "&":"&":ts -> showChar ' ' . rend i ts --H
+    "&"    :ts -> rend i ts --H
+    t      :ts -> showString t . rend i ts
+    _          -> id
+  realnew = showChar '\n' --H
+
+{-
+render :: Doc -> String
+render d = rend 0 (map ($ "") $ d []) "" where
+  rend i ss = case ss of
+    "*NEW"   :ts -> realnew . rend i ts --H
+    "<"      :ts -> showString "<" . rend i ts --H
+    "$"      :ts -> showString "$" . rend i ts --H
+    "?"      :ts -> showString "?" . rend i ts --H
+    "["      :ts -> showChar '[' . rend i ts
+    "("      :ts -> showChar '(' . rend i ts
+    "{"      :ts -> showChar '{' . new (i+1) . rend (i+1) ts
+    "}" : ";":ts -> new (i-1) . showChar '}' . 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 . showChar '@' . rend i ts
+    t  : "," :ts -> showString t . showChar ',' . rend i ts
+    t  : ")" :ts -> showString t . showChar ')' . rend i ts
+    t  : "]" :ts -> showString t . showChar ']' . rend i ts
+    t  : ">" :ts -> showString t . showChar '>' . rend i ts --H
+    t  : "." :ts -> showString t . showChar '.' . rend i ts --H
+    t@"=>"   :ts -> showString t . rend i ts --H
+    t@"->"   :ts -> showString t . rend i ts --H
+    t        :ts -> realspace t . rend i ts --H
+    _            -> id
+  space t = showString t . showChar ' ' -- H
+  realspace t = showString t . (\s -> if null s then "" else (' ':s)) -- H
+  new i s   = s  -- H
+  realnew = showChar '\n' --H
+-}
+
+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 = docs (shows x)
+
+
+instance Print Double where
+  prt _ x = docs (shows x)
+
+instance Print Ident where
+  prt _ i = docs (showString $ prIdent i) -- H
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print Canon where
+  prt i e = case e of
+   MGr ids id modules -> prPrec i 0 (concatD [spc, doc (showString "grammar") , spc, prt 0 ids , spc , doc (showString "of") , spc, prt 0 id , doc (showString ";") , prt 0 modules])
+   Gr modules -> prPrec i 0 (concatD [prt 0 modules])
+
+
+instance Print Line where
+  prt i e = case e of
+   LMulti ids id -> prPrec i 0 (concatD [spc, doc (showString "grammar") , spc, prt 0 ids , spc, doc (showString "of") , spc, prt 0 id , doc (showString ";")])
+   LHeader modtype extend open -> prPrec i 0 (concatD [prt 0 modtype , doc (showString "=") , prt 0 extend , prt 0 open , doc (showString "{")])
+   LFlag flag -> prPrec i 0 (concatD [prt 0 flag , doc (showString ";")])
+   LDef def -> prPrec i 0 (concatD [prt 0 def , doc (showString ";")])
+   LEnd  -> prPrec i 0 (concatD [doc (showString "}")])
+
+
+instance Print Module where
+  prt i e = case e of
+   Mod modtype extend open flags defs -> prPrec i 0 (concatD [prt 0 modtype , doc (showString "=") , prt 0 extend , prt 0 open , doc (showString "{") , prt 0 flags , prt 0 defs , 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
+   MTAbs id -> prPrec i 0 (concatD [spc, doc (showString "abstract") , spc , prt 0 id])
+   MTCnc id0 id -> prPrec i 0 (concatD [spc, doc (showString "concrete") , spc, prt 0 id0 , spc, doc (showString "of") , spc, prt 0 id])
+   MTRes id -> prPrec i 0 (concatD [spc, doc (showString "resource") , spc, prt 0 id])
+   MTTrans id0 id1 id -> prPrec i 0 (concatD [spc, doc (showString "transfer") , spc, prt 0 id0 , doc (showString ":") , prt 0 id1 , doc (showString "->") , prt 0 id])
+
+
+instance Print Extend where
+  prt i e = case e of
+   Ext ids -> prPrec i 0 (concatD [prt 0 ids , doc (showString "**")])
+   NoExt  -> prPrec i 0 (concatD [])
+
+
+instance Print Open where
+  prt i e = case e of
+   Opens ids -> prPrec i 0 (concatD [spc, doc (showString "open") , spc, prt 0 ids , docs (showString "in")])
+   NoOpens  -> prPrec i 0 (concatD [])
+
+
+instance Print Flag where
+  prt i e = case e of
+   Flg id0 id -> prPrec i 0 (concatD [spc, doc (showString "flags") , spc, prt 0 id0 , doc (showString "=") , prt 0 id])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Def where
+  prt i e = case e of
+   AbsDCat id decls cidents -> prPrec i 0 (concatD [docs (showString "cat") , prt 0 id , doc (showString "[") , prt 0 decls , doc (showString "]") , doc (showString "=") , prt 0 cidents])
+   AbsDFun id exp0 exp -> prPrec i 0 (concatD [docs (showString "fun") , prt 0 id , doc (showString ":") , prt 0 exp0 , doc (showString "=") , prt 0 exp])
+   AbsDTrans id exp -> prPrec i 0 (concatD [docs (showString "transfer") , prt 0 id , doc (showString "=") , prt 0 exp])
+   ResDPar id pardefs -> prPrec i 0 (concatD [docs (showString "param") , prt 0 id , doc (showString "=") , prt 0 pardefs])
+   ResDOper id ctype term -> prPrec i 0 (concatD [docs (showString "oper") , prt 0 id , doc (showString ":") , prt 0 ctype , doc (showString "=") , prt 0 term])
+   CncDCat id ctype term0 term -> prPrec i 0 (concatD [docs (showString "lincat") , prt 0 id , doc (showString "=") , prt 0 ctype , doc (showString "=") , prt 0 term0 , doc (showString ";") , prt 0 term])
+   CncDFun id cident argvars term0 term -> prPrec i 0 (concatD [docs (showString "lin") , prt 0 id , doc (showString ":") , prt 0 cident , doc (showString "=") , doc (showString "\\") , prt 0 argvars , doc (showString "->") , prt 0 term0 , doc (showString ";") , prt 0 term])
+   AnyDInd id0 status id -> prPrec i 0 (concatD [prt 0 id0 , prt 0 status , docs (showString "in") , prt 0 id])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , doc (showString ";"), doc (showString "*") , prt 0 xs]) -- H
+
+
+instance Print ParDef where
+  prt i e = case e of
+   ParD id ctypes -> prPrec i 0 (concatD [prt 0 id , prt 0 ctypes])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString "|") , prt 0 xs])
+
+instance Print Status where
+  prt i e = case e of
+   Canon  -> prPrec i 0 (concatD [docs (showString "data")])
+   NonCan  -> prPrec i 0 (concatD [])
+
+
+instance Print CIdent where
+  prt i e = case e of
+   CIQ id0 id -> prPrec i 0 (concatD [prt 0 id0 , doc (showString ".") , prt 0 id])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print Exp where
+  prt i e = case e of
+   EApp exp0 exp -> prPrec i 1 (concatD [prt 1 exp0 , prt 2 exp])
+   EProd id exp0 exp -> prPrec i 0 (concatD [doc (showString "(") , prt 0 id , doc (showString ":") , prt 0 exp0 , doc (showString ")") , doc (showString "->") , prt 0 exp])
+   EAbs id exp -> prPrec i 0 (concatD [doc (showString "\\") , prt 0 id , doc (showString "->") , prt 0 exp])
+   EAtom atom -> prPrec i 2 (concatD [prt 0 atom])
+   EData  -> prPrec i 2 (concatD [docs (showString "data")])
+   EEq equations -> prPrec i 0 (concatD [doc (showString "{") , prt 0 equations , doc (showString "}")])
+
+
+instance Print Sort where
+  prt i e = case e of
+   SType  -> prPrec i 0 (concatD [docs (showString "Type")])
+
+
+instance Print Equation where
+  prt i e = case e of
+   Equ apatts exp -> prPrec i 0 (concatD [prt 0 apatts , doc (showString "->") , prt 0 exp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print APatt where
+  prt i e = case e of
+   APC cident apatts -> prPrec i 0 (concatD [doc (showString "(") , prt 0 cident , prt 0 apatts , doc (showString ")")])
+   APV id -> prPrec i 0 (concatD [prt 0 id])
+   APS str -> prPrec i 0 (concatD [prt 0 str])
+   API n -> prPrec i 0 (concatD [prt 0 n])
+   APF n -> prPrec i 0 (concatD [prt 0 n])
+   APW  -> prPrec i 0 (concatD [doc (showString "_")])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print Atom where
+  prt i e = case e of
+   AC cident -> prPrec i 0 (concatD [prt 0 cident])
+   AD cident -> prPrec i 0 (concatD [doc (showString "<") , prt 0 cident , doc (showString ">")])
+   AV id -> prPrec i 0 (concatD [doc (showString "$") , prt 0 id])
+   AM n -> prPrec i 0 (concatD [doc (showString "?") , prt 0 n])
+   AS str -> prPrec i 0 (concatD [prt 0 str])
+   AI n -> prPrec i 0 (concatD [prt 0 n])
+   AT sort -> prPrec i 0 (concatD [prt 0 sort])
+
+
+instance Print Decl where
+  prt i e = case e of
+   Decl id exp -> prPrec i 0 (concatD [prt 0 id , doc (showString ":") , prt 0 exp])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print CType where
+  prt i e = case e of
+   RecType labellings -> prPrec i 0 (concatD [doc (showString "{") , prt 0 labellings , doc (showString "}")])
+   Table ctype0 ctype -> prPrec i 0 (concatD [doc (showString "(") , prt 0 ctype0 , doc (showString "=>") , prt 0 ctype , doc (showString ")")])
+   Cn cident -> prPrec i 0 (concatD [prt 0 cident])
+   TStr  -> prPrec i 0 (concatD [docs (showString "Str")])
+   TInts n -> prPrec i 0 (concatD [docs (showString "Ints") , prt 0 n])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print Labelling where
+  prt i e = case e of
+   Lbg label ctype -> prPrec i 0 (concatD [prt 0 label , doc (showString ":") , prt 0 ctype])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Term where
+  prt i e = case e of
+   Arg argvar -> prPrec i 2 (concatD [prt 0 argvar])
+   I cident -> prPrec i 2 (concatD [prt 0 cident])
+   Par cident terms -> prPrec i 2 (concatD [doc (showString "<") , prt 0 cident , prt 2 terms , doc (showString ">")])
+   LI id -> prPrec i 2 (concatD [doc (showString "$") , prt 0 id])
+   R assigns -> prPrec i 2 (concatD [doc (showString "{") , prt 0 assigns , doc (showString "}")])
+   P term label -> prPrec i 1 (concatD [prt 2 term , doc (showString ".") , prt 0 label])
+   T ctype cases -> prPrec i 1 (concatD [docs (showString "table") , prt 0 ctype , doc (showString "{") , prt 0 cases , doc (showString "}")])
+   V ctype terms -> prPrec i 1 (concatD [docs (showString "table") , prt 0 ctype , doc (showString "[") , prt 2 terms , doc (showString "]")])
+   S term0 term -> prPrec i 1 (concatD [prt 1 term0 , doc (showString "!") , prt 2 term])
+   C term0 term -> prPrec i 0 (concatD [prt 0 term0 , doc (showString "++") , prt 1 term])
+   FV terms -> prPrec i 1 (concatD [docs (showString "variants") , doc (showString "{") , prt 2 terms , doc (showString "}")])
+   EInt n -> prPrec i 2 (concatD [prt 0 n])
+   EFloat n -> prPrec i 2 (concatD [prt 0 n])
+   K tokn -> prPrec i 2 (concatD [prt 0 tokn])
+   E  -> prPrec i 2 (concatD [doc (showString "[") , doc (showString "]")])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 2 x , prt 2 xs])
+
+instance Print Tokn where
+  prt i e = case e of
+   KS str -> prPrec i 0 (concatD [prt 0 str])
+   KP strs variants -> prPrec i 0 (concatD [doc (showString "[") , docs (showString "pre") , prt 0 strs , doc (showString "{") , prt 0 variants , doc (showString "}") , doc (showString "]")])
+   KM str -> prPrec i 0 (concatD [prt 0 str])
+
+
+instance Print Assign where
+  prt i e = case e of
+   Ass label term -> prPrec i 0 (concatD [prt 0 label , doc (showString "=") , prt 0 term])
+
+  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
+   Cas patts term -> prPrec i 0 (concatD [prt 0 patts , doc (showString "=>") , prt 0 term])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs])
+
+instance Print Variant where
+  prt i e = case e of
+   Var strs0 strs -> prPrec i 0 (concatD [prt 0 strs0 , doc (showString "/") , prt 0 strs])
+
+  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
+   L id -> prPrec i 0 (concatD [prt 0 id])
+   LV n -> prPrec i 0 (concatD [doc (showString "$") , prt 0 n])
+
+
+instance Print ArgVar where
+  prt i e = case e of
+   A id n -> prPrec i 0 (concatD [prt 0 id , doc (showString "@") , prt 0 n])
+   AB id n0 n -> prPrec i 0 (concatD [prt 0 id , doc (showString "+") , prt 0 n0 , doc (showString "@") , prt 0 n])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   [x] -> (concatD [prt 0 x])
+   x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs])
+
+instance Print Patt where
+  prt i e = case e of
+   PC cident patts -> prPrec i 0 (concatD [doc (showString "(") , prt 0 cident , prt 0 patts , doc (showString ")")])
+   PV id -> prPrec i 0 (concatD [prt 0 id])
+   PW  -> prPrec i 0 (concatD [docs (showString "_")])
+   PR pattassigns -> prPrec i 0 (concatD [doc (showString "{") , prt 0 pattassigns , doc (showString "}")])
+   PI n -> prPrec i 0 (concatD [prt 0 n])
+   PF n -> prPrec i 0 (concatD [prt 0 n])
+
+  prtList es = case es of
+   [] -> (concatD [])
+   x:xs -> (concatD [prt 0 x , prt 0 xs])
+
+instance Print PattAssign where
+  prt i e = case e of
+   PAss label patt -> prPrec i 0 (concatD [prt 0 label , 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])
+
+