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authorkrasimir <krasimir@chalmers.se>2009-12-14 10:10:58 +0000
committerkrasimir <krasimir@chalmers.se>2009-12-14 10:10:58 +0000
commitfaa638d6fc5dbc47d5e3ef3d4da42449005c3a0d (patch)
treeee29a4d81d63bae51d453cade0105c8f689a5734 /src/compiler/GF/Compile/PGFtoJS.hs
parenta7811d11998cd87d8adc32a67449da52b10e5e64 (diff)
rename some modules that had GFCC in the name to PGF+something
Diffstat (limited to 'src/compiler/GF/Compile/PGFtoJS.hs')
-rw-r--r--src/compiler/GF/Compile/PGFtoJS.hs122
1 files changed, 122 insertions, 0 deletions
diff --git a/src/compiler/GF/Compile/PGFtoJS.hs b/src/compiler/GF/Compile/PGFtoJS.hs
new file mode 100644
index 000000000..ff75d8fe6
--- /dev/null
+++ b/src/compiler/GF/Compile/PGFtoJS.hs
@@ -0,0 +1,122 @@
+module GF.Compile.PGFtoJS (pgf2js) where
+
+import PGF.CId
+import PGF.Data hiding (mkStr)
+import qualified PGF.Macros as M
+import qualified GF.JavaScript.AbsJS as JS
+import qualified GF.JavaScript.PrintJS as JS
+
+import GF.Text.UTF8
+import GF.Data.ErrM
+import GF.Infra.Option
+
+import Control.Monad (mplus)
+import Data.Array.Unboxed (UArray)
+import qualified Data.Array.IArray as Array
+import Data.Maybe (fromMaybe)
+import Data.Map (Map)
+import qualified Data.Set as Set
+import qualified Data.Map as Map
+import qualified Data.IntMap as IntMap
+
+pgf2js :: PGF -> String
+pgf2js pgf =
+ encodeUTF8 $ JS.printTree $ JS.Program [JS.ElStmt $ JS.SDeclOrExpr $ JS.Decl [JS.DInit (JS.Ident n) grammar]]
+ where
+ n = showCId $ absname pgf
+ as = abstract pgf
+ cs = Map.assocs (concretes pgf)
+ start = showCId $ M.lookStartCat pgf
+ grammar = new "GFGrammar" [js_abstract, js_concrete]
+ js_abstract = abstract2js start as
+ js_concrete = JS.EObj $ map (concrete2js n) cs
+
+abstract2js :: String -> Abstr -> JS.Expr
+abstract2js start ds = new "GFAbstract" [JS.EStr start, JS.EObj $ map absdef2js (Map.assocs (funs ds))]
+
+absdef2js :: (CId,(Type,Int,[Equation])) -> JS.Property
+absdef2js (f,(typ,_,_)) =
+ let (args,cat) = M.catSkeleton typ in
+ JS.Prop (JS.IdentPropName (JS.Ident (showCId f))) (new "Type" [JS.EArray [JS.EStr (showCId x) | x <- args], JS.EStr (showCId cat)])
+
+concrete2js :: String -> (CId,Concr) -> JS.Property
+concrete2js n (c, cnc) =
+ JS.Prop l (new "GFConcrete" ([flags,(JS.EObj $ ((map (cncdef2js n (showCId c)) ds) ++ litslins))] ++
+ maybe [] parser2js (parser cnc)))
+ where
+ flags = mapToJSObj JS.EStr $ cflags cnc
+ l = JS.IdentPropName (JS.Ident (showCId c))
+ ds = concatMap Map.assocs [lins cnc, opers cnc, lindefs cnc]
+ litslins = [JS.Prop (JS.StringPropName "Int") (JS.EFun [children] [JS.SReturn $ new "Arr" [JS.EIndex (JS.EVar children) (JS.EInt 0)]]),
+ JS.Prop (JS.StringPropName "Float") (JS.EFun [children] [JS.SReturn $ new "Arr" [JS.EIndex (JS.EVar children) (JS.EInt 0)]]),
+ JS.Prop (JS.StringPropName "String") (JS.EFun [children] [JS.SReturn $ new "Arr" [JS.EIndex (JS.EVar children) (JS.EInt 0)]])]
+
+
+cncdef2js :: String -> String -> (CId,Term) -> JS.Property
+cncdef2js n l (f, t) = JS.Prop (JS.IdentPropName (JS.Ident (showCId f))) (JS.EFun [children] [JS.SReturn (term2js n l t)])
+
+term2js :: String -> String -> Term -> JS.Expr
+term2js n l t = f t
+ where
+ f t =
+ case t of
+ R xs -> new "Arr" (map f xs)
+ P x y -> JS.ECall (JS.EMember (f x) (JS.Ident "sel")) [f y]
+ S xs -> mkSeq (map f xs)
+ K t -> tokn2js t
+ V i -> JS.EIndex (JS.EVar children) (JS.EInt i)
+ C i -> new "Int" [JS.EInt i]
+ F f -> JS.ECall (JS.EMember (JS.EIndex (JS.EMember (JS.EVar $ JS.Ident n) (JS.Ident "concretes")) (JS.EStr l)) (JS.Ident "rule")) [JS.EStr (showCId f), JS.EVar children]
+ FV xs -> new "Variants" (map f xs)
+ W str x -> new "Suffix" [JS.EStr str, f x]
+ TM _ -> new "Meta" []
+
+tokn2js :: Tokn -> JS.Expr
+tokn2js (KS s) = mkStr s
+tokn2js (KP ss vs) = mkSeq (map mkStr ss) -- FIXME
+
+mkStr :: String -> JS.Expr
+mkStr s = new "Str" [JS.EStr s]
+
+mkSeq :: [JS.Expr] -> JS.Expr
+mkSeq [x] = x
+mkSeq xs = new "Seq" xs
+
+argIdent :: Integer -> JS.Ident
+argIdent n = JS.Ident ("x" ++ show n)
+
+children :: JS.Ident
+children = JS.Ident "cs"
+
+-- Parser
+parser2js :: ParserInfo -> [JS.Expr]
+parser2js p = [new "Parser" [JS.EObj $ [JS.Prop (JS.IntPropName cat) (JS.EArray (map frule2js (Set.toList set))) | (cat,set) <- IntMap.toList (productions0 p)],
+ JS.EArray $ (map ffun2js (Array.elems (functions p))),
+ JS.EArray $ (map seq2js (Array.elems (sequences p))),
+ JS.EObj $ map cats (Map.assocs (startCats p)),
+ JS.EInt (totalCats p)]]
+ where
+ cats (c,is) = JS.Prop (JS.IdentPropName (JS.Ident (showCId c))) (JS.EArray (map JS.EInt is))
+
+frule2js :: Production -> JS.Expr
+frule2js (FApply funid args) = new "Rule" [JS.EInt funid, JS.EArray (map JS.EInt args)]
+frule2js (FCoerce arg) = new "Coerce" [JS.EInt arg]
+
+ffun2js (FFun f _ lins) = new "FFun" [JS.EStr (showCId f), JS.EArray (map JS.EInt (Array.elems lins))]
+
+seq2js :: Array.Array FIndex FSymbol -> JS.Expr
+seq2js seq = JS.EArray [sym2js s | s <- Array.elems seq]
+
+sym2js :: FSymbol -> JS.Expr
+sym2js (FSymCat n l) = new "Arg" [JS.EInt n, JS.EInt l]
+sym2js (FSymLit n l) = new "Lit" [JS.EInt n, JS.EInt l]
+sym2js (FSymKS ts) = new "KS" (map JS.EStr ts)
+sym2js (FSymKP ts alts) = new "KP" [JS.EArray (map JS.EStr ts), JS.EArray (map alt2js alts)]
+
+alt2js (Alt ps ts) = new "Alt" [JS.EArray (map JS.EStr ps), JS.EArray (map JS.EStr ts)]
+
+new :: String -> [JS.Expr] -> JS.Expr
+new f xs = JS.ENew (JS.Ident f) xs
+
+mapToJSObj :: (a -> JS.Expr) -> Map CId a -> JS.Expr
+mapToJSObj f m = JS.EObj [ JS.Prop (JS.IdentPropName (JS.Ident (showCId k))) (f v) | (k,v) <- Map.toList m ]