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|
----------------------------------------------------------------------
-- |
-- Module : GF.Speech.SISR
--
-- Abstract syntax and pretty printer for SISR,
-- (Semantic Interpretation for Speech Recognition)
----------------------------------------------------------------------
module GF.Speech.SISR (SISRFormat(..), SISRTag, prSISR,
topCatSISR, profileInitSISR, catSISR, profileFinalSISR) where
import Data.List
--import GF.Data.Utilities
--import GF.Infra.Ident
import GF.Infra.Option (SISRFormat(..))
import GF.Grammar.CFG
import GF.Speech.SRG (SRGNT)
import PGF(showCId)
import qualified GF.JavaScript.AbsJS as JS
import qualified GF.JavaScript.PrintJS as JS
type SISRTag = [JS.DeclOrExpr]
prSISR :: SISRTag -> String
prSISR = JS.printTree
topCatSISR :: String -> SISRFormat -> SISRTag
topCatSISR c fmt = map JS.DExpr [fmtOut fmt `ass` fmtRef fmt c]
profileInitSISR :: CFTerm -> SISRFormat -> SISRTag
profileInitSISR t fmt
| null (usedArgs t) = []
| otherwise = [JS.Decl [JS.DInit args (JS.EArray [])]]
usedArgs :: CFTerm -> [Int]
usedArgs (CFObj _ ts) = foldr union [] (map usedArgs ts)
usedArgs (CFAbs _ x) = usedArgs x
usedArgs (CFApp x y) = usedArgs x `union` usedArgs y
usedArgs (CFRes i) = [i]
usedArgs _ = []
catSISR :: CFTerm -> SRGNT -> SISRFormat -> SISRTag
catSISR t (c,i) fmt
| i `elem` usedArgs t = map JS.DExpr
[JS.EIndex (JS.EVar args) (JS.EInt (fromIntegral i)) `ass` fmtRef fmt c]
| otherwise = []
profileFinalSISR :: CFTerm -> SISRFormat -> SISRTag
profileFinalSISR term fmt = [JS.DExpr $ fmtOut fmt `ass` f term]
where
f (CFObj n ts) = tree (showCId n) (map f ts)
f (CFAbs v x) = JS.EFun [var v] [JS.SReturn (f x)]
f (CFApp x y) = JS.ECall (f x) [f y]
f (CFRes i) = JS.EIndex (JS.EVar args) (JS.EInt (fromIntegral i))
f (CFVar v) = JS.EVar (var v)
f (CFMeta typ) = obj [("name",JS.EStr "?"), ("type",JS.EStr (showCId typ))]
fmtOut SISR_WD20030401 = JS.EVar (JS.Ident "$")
fmtOut SISR_1_0 = JS.EVar (JS.Ident "out")
fmtRef SISR_WD20030401 c = JS.EVar (JS.Ident ("$" ++ c))
fmtRef SISR_1_0 c = field (JS.EVar (JS.Ident "rules")) c
args = JS.Ident "a"
var v = JS.Ident ("x" ++ show v)
field x y = JS.EMember x (JS.Ident y)
ass = JS.EAssign
tree n xs = obj [("name", JS.EStr n), ("args", JS.EArray xs)]
obj ps = JS.EObj [JS.Prop (JS.StringPropName x) y | (x,y) <- ps]
|
