removed Canon/GFCC

1 files changed, 0 insertions, 212 deletions

diff --git a/src/GF/Canon/GFCC/GFCCToHaskell.hs b/src/GF/Canon/GFCC/GFCCToHaskell.hs
deleted file mode 100644
index 890c1a76f..000000000
--- a/src/GF/Canon/GFCC/GFCCToHaskell.hs
+++ /dev/null
@@ -1,212 +0,0 @@
-----------------------------------------------------------------------
--- |
--- Module      : GrammarToHaskell
--- Maintainer  : Aarne Ranta
--- Stability   : (stable)
--- Portability : (portable)
---
--- > CVS $Date: 2005/06/17 12:39:07 $ 
--- > CVS $Author: bringert $
--- > CVS $Revision: 1.8 $
---
--- to write a GF abstract grammar into a Haskell module with translations from
--- data objects into GF trees. Example: GSyntax for Agda.
--- AR 11/11/1999 -- 7/12/2000 -- 18/5/2004
------------------------------------------------------------------------------
-
-module GF.Canon.GFCC.GFCCToHaskell (grammar2haskell, grammar2haskellGADT) where
-
-import GF.Canon.GFCC.AbsGFCC
-import GF.Canon.GFCC.DataGFCC
-import GF.Data.Operations
-
-import Data.List --(isPrefixOf, find, intersperse)
-import qualified Data.Map as Map
-
--- | the main function
-grammar2haskell :: GFCC -> String
-grammar2haskell gr = foldr (++++) [] $  
-  haskPreamble ++ [datatypes gr', gfinstances gr', fginstances gr']
-    where gr' = hSkeleton gr
-
-grammar2haskellGADT :: GFCC -> String
-grammar2haskellGADT gr = foldr (++++) [] $  
-  ["{-# OPTIONS_GHC -fglasgow-exts #-}"] ++ 
-  haskPreamble ++ [datatypesGADT gr', gfinstances gr', fginstances gr']
-    where gr' = hSkeleton gr
-
--- | by this you can prefix all identifiers with stg; the default is 'G'
-gId :: OIdent -> OIdent 
-gId i = 'G':i
-
-haskPreamble =
- [
-  "module GSyntax where",
-  "",
-  "import GF.Canon.GFCC.AbsGFCC",
-  "import GF.Canon.GFCC.DataGFCC",
-  "import GF.Data.Operations",
-  "----------------------------------------------------",
-  "-- automatic translation from GF to Haskell",
-  "----------------------------------------------------",
-  "", 
-  "class Gf a where gf :: a -> Exp",
-  "class Fg a where fg :: Exp -> a",
-  "",
-  predefInst "GString" "String" "Tr (AS s) []",
-  "",
-  predefInst "GInt" "Integer" "Tr (AI s) []",
-  "",
-  predefInst "GFloat" "Double" "Tr (AF s) []",
-  "",
-  "----------------------------------------------------",
-  "-- below this line machine-generated",
-  "----------------------------------------------------",
-  ""
- ]
-
-predefInst gtyp typ patt = 
-  "newtype" +++ gtyp +++ "=" +++ gtyp +++ typ +++ " deriving Show" +++++
-  "instance Gf" +++ gtyp +++ "where" ++++
-  "  gf (" ++ gtyp +++ "s) =" +++ patt +++++
-  "instance Fg" +++ gtyp +++ "where" ++++
-  "  fg t =" ++++
-  "    case t of" ++++
-  "     " +++ patt +++ " ->" +++ gtyp +++ "s" ++++
-  "      _ -> error (\"no" +++ gtyp +++ "\" ++ show t)"
-
-type OIdent = String
-
-type HSkeleton = [(OIdent, [(OIdent, [OIdent])])]
-
-datatypes, gfinstances, fginstances :: (String,HSkeleton) -> String
-datatypes   = (foldr (+++++) "") . (filter (/="")) . (map hDatatype) . snd
-gfinstances (m,g) = (foldr (+++++) "") $ (filter (/="")) $ (map (hInstance m)) g
-fginstances (m,g) = (foldr (+++++) "") $ (filter (/="")) $ (map (fInstance m)) g
-
-hDatatype :: (OIdent, [(OIdent, [OIdent])]) -> String
-hInstance, fInstance :: String -> (OIdent, [(OIdent, [OIdent])]) -> String
-
-hDatatype ("Cn",_) = "" ---
-hDatatype (cat,[]) = ""
-hDatatype (cat,rules) | isListCat (cat,rules) = 
- "newtype" +++ gId cat +++ "=" +++ gId cat +++ "[" ++ gId (elemCat cat) ++ "]" 
-  +++ "deriving Show"
-hDatatype (cat,rules) =
- "data" +++ gId cat +++ "=" ++
- (if length rules == 1 then "" else "\n  ") +++
- foldr1 (\x y -> x ++ "\n |" +++ y) 
-        [gId f +++ foldr (+++) "" (map gId xx) | (f,xx) <- rules] ++++
- "  deriving Show"
-
--- GADT version of data types
-datatypesGADT :: (String,HSkeleton) -> String
-datatypesGADT (_,skel) = 
-    unlines (concatMap hCatTypeGADT skel)
-    +++++
-    "data Tree :: * -> * where" ++++ unlines (concatMap (map ("  "++) . hDatatypeGADT) skel)
-
-hCatTypeGADT :: (OIdent, [(OIdent, [OIdent])]) -> [String]
-hCatTypeGADT (cat,rules)
-    = ["type"+++gId cat+++"="+++"Tree"+++gId cat++"_",
-       "data"+++gId cat++"_"]
-
-hDatatypeGADT :: (OIdent, [(OIdent, [OIdent])]) -> [String]
-hDatatypeGADT (cat, rules) 
-    | isListCat (cat,rules) = [gId cat+++"::"+++"["++gId (elemCat cat)++"]" +++ "->" +++ t]
-    | otherwise =
-        [ gId f +++ "::" +++ concatMap (\a -> gId a +++ "-> ") args ++ t | (f,args) <- rules ]
-  where t = "Tree" +++ gId cat ++ "_"
-
-
-----hInstance m ("Cn",_) = "" --- seems to belong to an old applic. AR 18/5/2004
-hInstance m (cat,[]) = "" 
-hInstance m (cat,rules) 
- | isListCat (cat,rules) =
-  "instance Gf" +++ gId cat +++ "where" ++++
-     " gf (" ++ gId cat +++ "[" ++ concat (intersperse "," baseVars) ++ "])" 
-           +++ "=" +++ mkRHS ("Base"++ec) baseVars ++++
-     " gf (" ++ gId cat +++ "(x:xs)) = " 
-           ++ mkRHS ("Cons"++ec) ["x",prParenth (gId cat+++"xs")] 
--- no show for GADTs
---     ++++ " gf (" ++ gId cat +++ "xs) = error (\"Bad " ++ cat ++ " value: \" ++ show xs)" 
- | otherwise =
-  "instance Gf" +++ gId cat +++ "where" ++
-  (if length rules == 1 then "" else "\n") +++
-  foldr1 (\x y -> x ++ "\n" +++ y) [mkInst f xx | (f,xx) <- rules]
- where
-   ec = elemCat cat
-   baseVars = mkVars (baseSize (cat,rules))
-   mkInst f xx = let xx' = mkVars (length xx) in "gf " ++
-     (if length xx == 0 then gId f else prParenth (gId f +++ foldr1 (+++) xx')) +++
-     "=" +++ mkRHS f xx'
-   mkVars n = ["x" ++ show i | i <- [1..n]]
-   mkRHS f vars = "Tr (AC (CId \"" ++ f ++ "\"))" +++ 
-		   "[" ++ prTList ", " ["gf" +++ x | x <- vars] ++ "]"
-
-
-----fInstance m ("Cn",_) = "" ---
-fInstance m (cat,[]) = ""
-fInstance m (cat,rules) =
-  "instance Fg" +++ gId cat +++ "where" ++++
-  " fg t =" ++++
-  "  case t of" ++++
-  foldr1 (\x y -> x ++ "\n" ++ y) [mkInst f xx | (f,xx) <- rules] ++++
-  "    _ -> error (\"no" +++ cat ++ " \" ++ show t)"
-   where
-    mkInst f xx =
-     "    Tr (AC (CId \"" ++ f ++ "\")) " ++
-     "[" ++ prTList "," xx' ++ "]" +++
-     "->" +++ mkRHS f xx'
-       where xx' = ["x" ++ show i | (_,i) <- zip xx [1..]]
-	     mkRHS f vars 
-		 | isListCat (cat,rules) =
-		     if "Base" `isPrefixOf` f then
-			gId cat +++ "[" ++ prTList ", " [ "fg" +++ x | x <- vars ] ++ "]"
-		      else
-                       let (i,t) = (init vars,last vars)
-                        in "let" +++ gId cat +++ "xs = fg " ++ t +++ "in" +++ 
-                          gId cat +++ prParenth (prTList ":" (["fg"+++v | v <- i] ++ ["xs"]))
-		 | otherwise = 
-		     gId f +++  
-		     prTList " " [prParenth ("fg" +++ x) | x <- vars]
-
-
---type HSkeleton = [(OIdent, [(OIdent, [OIdent])])]
-hSkeleton :: GFCC -> (String,HSkeleton)
-hSkeleton gr = 
-  (pr (absname gr), 
-   [(pr c, [(pr f, map pr cs) | (f, Typ cs _) <- fs]) | 
-                                        fs@((_, Typ _ c):_) <- fs]
-  )
- where
-   fs = groupBy valtypg (sortBy valtyps (Map.assocs (funs (abstract gr))))
-   valtyps (_, Typ _ x) (_, Typ _ y) = compare x y
-   valtypg (_, Typ _ x) (_, Typ _ y) = x == y
-   pr (CId c) = c
-
-updateSkeleton :: OIdent -> HSkeleton -> (OIdent, [OIdent]) -> HSkeleton
-updateSkeleton cat skel rule =
- case skel of
-   (cat0,rules):rr | cat0 == cat -> (cat0, rule:rules) : rr
-   (cat0,rules):rr               -> (cat0, rules) : updateSkeleton cat rr rule
-
-isListCat :: (OIdent, [(OIdent, [OIdent])]) -> Bool
-isListCat (cat,rules) = "List" `isPrefixOf` cat && length rules == 2
-		    && ("Base"++c) `elem` fs && ("Cons"++c) `elem` fs
-    where c = elemCat cat
-	  fs = map fst rules
-
--- | Gets the element category of a list category.
-elemCat :: OIdent -> OIdent
-elemCat = drop 4
-
-isBaseFun :: OIdent -> Bool
-isBaseFun f = "Base" `isPrefixOf` f
-
-isConsFun :: OIdent -> Bool
-isConsFun f = "Cons" `isPrefixOf` f
-
-baseSize :: (OIdent, [(OIdent, [OIdent])]) -> Int
-baseSize (_,rules) = length bs
-    where Just (_,bs) = find (("Base" `isPrefixOf`) . fst) rules