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|
----------------------------------------------------------------------
-- |
-- Module : GF.Speech.SISR
-- Maintainer : BB
-- Stability : (stable)
-- Portability : (portable)
--
-- 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.Conversion.Types
import GF.Data.Utilities
import GF.Formalism.CFG
import GF.Formalism.Utilities (Symbol(..), NameProfile(..), Profile(..), forestName)
import GF.Infra.Ident
import GF.Speech.TransformCFG
import GF.Speech.SRG
import qualified GF.JavaScript.AbsJS as JS
import qualified GF.JavaScript.PrintJS as JS
data SISRFormat =
-- SISR Working draft 1 April 2003
-- http://www.w3.org/TR/2003/WD-semantic-interpretation-20030401/
SISROld
deriving Show
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 (usedChildren t) = []
| otherwise = [JS.Decl [JS.DInit children (JS.EArray [])]]
usedChildren :: CFTerm -> [Int]
usedChildren (CFObj _ ts) = foldr union [] (map usedChildren ts)
usedChildren (CFAbs _ x) = usedChildren x
usedChildren (CFApp x y) = usedChildren x `union` usedChildren y
usedChildren (CFRes i) = [i]
usedChildren _ = []
catSISR :: CFTerm -> SRGNT -> SISRFormat -> SISRTag
catSISR t (c,i) fmt
| i `elem` usedChildren t = map JS.DExpr
[JS.EIndex (JS.EVar children) (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 (prIdent 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 children) (JS.EInt (fromIntegral i))
f (CFVar v) = JS.EVar (var v)
f (CFConst s) = JS.EStr s
f (CFMeta typ) = obj [("name",JS.EStr "?"), ("type",JS.EStr typ)]
fmtOut SISROld = JS.EVar (JS.Ident "$")
fmtRef SISROld c = JS.EVar (JS.Ident ("$" ++ c))
children = JS.Ident "c"
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), ("children", JS.EArray xs)]
obj ps = JS.EObj [JS.Prop (JS.Ident x) y | (x,y) <- ps]
|
