Meta variables are now treated as functions with name ? in SISR, VoiceXML and JavaScript linearization. VoiceXML now returns the partial result when update() is false.

src/GF/Speech/GrammarToVoiceXML.hs

@@ -119,22 +119,22 @@ catForms gr qs cat fs =
 cat2form :: String -> CatQuestions -> VIdent -> [(VIdent, [VIdent])] -> XML
 cat2form gr qs cat fs = 
   form (catFormId cat) $ 
-      [var "value" (Just "'?'"), 
+      [var "value" (Just "{ name : '?' }"), 
        var "update" Nothing, 
-       blockCond "value != '?'" [assign (catFieldId cat) "value"],
+       blockCond "value.name != '?'" [assign (catFieldId cat) "value"],
        field (catFieldId cat) [] 
            [promptString (getCatQuestion cat qs), 
             grammar (gr++"#"++catFormId cat),
             nomatch [Data "I didn't understand you.", reprompt],
             help [Data ("help_"++cat)],
-            filled [] [if_else (catFieldId cat ++ " == '?'") [reprompt] feedback]]
+            filled [] [if_else (catFieldId cat ++ ".name == '?'") [reprompt] feedback]]
       ]
      ++ concatMap (uncurry (fun2sub gr cat)) fs
   ++ [block [return_ [catFieldId cat]]]
-  where feedback = [if_ ("typeof update != 'undefined' && !update("++string cat++","++ catFieldId cat ++ ")") [return_ []]]
+  where feedback = [if_ ("typeof update != 'undefined' && !update("++string cat++","++ catFieldId cat ++ ")") [return_ [catFieldId cat]]]
 
 fun2sub :: String -> VIdent -> VIdent -> [VIdent] -> [XML]
-fun2sub gr cat fun args = comments [fun ++ " : " ++ cat] ++ ss
+fun2sub gr cat fun args = comments [fun ++ " : (" ++ concat (intersperse ", " args) ++ ") " ++ cat] ++ ss
   where 
   argNames = zip ["arg"++show n | n <- [0..]] args
   ss = map (uncurry mkSub) argNames

src/GF/Speech/SISR.hs

@@ -44,7 +44,7 @@ topCatSISR i c fmt = map JS.DExpr [field (fmtOut fmt) i `ass` fmtRef fmt c]
 profileInitSISR :: CFTerm -> SISRFormat -> SISRTag
 profileInitSISR t fmt 
     | null (usedChildren t) = []
-    | otherwise = [JS.Decl [JS.DInit children (JS.ENew (JS.Ident "Array") [])]]
+    | otherwise = [JS.Decl [JS.DInit children (JS.EArray [])]]
 
 usedChildren :: CFTerm -> [Int]
 usedChildren (CFObj _ ts) = foldr union [] (map usedChildren ts)
@@ -60,24 +60,15 @@ catSISR t (c,i) fmt
         | otherwise = []
 
 profileFinalSISR :: CFTerm -> SISRFormat -> SISRTag
-profileFinalSISR term fmt = map JS.DExpr $ g term
+profileFinalSISR term fmt = [JS.DExpr $ fmtOut fmt `ass` f term]
   where 
-        -- optimization for tokens
-        g (CFObj n []) = [field (fmtOut fmt) "name" `ass` JS.EStr (prIdent n)] 
-        g t = [fmtOut fmt `ass` f t]
-        f (CFObj n ts) = 
-            JS.ESeq $ [ret `ass` JS.ENew (JS.Ident "Object") [], 
-                           field ret "name" `ass` JS.EStr (prIdent n)] 
-                  ++ [field ret ("arg"++show i) `ass` f t 
-                          | (i,t) <- zip [0..] ts ]
-                  ++ [ret]
-          where ret = JS.EVar (JS.Ident "ret")
+        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 = tree "?" []
 
 fmtOut SISROld = JS.EVar (JS.Ident "$")
 
@@ -89,4 +80,7 @@ var v = JS.Ident ("x" ++ show v)
 
 field x y = JS.EMember x (JS.Ident y)
 
-ass = JS.EAssign
+ass = JS.EAssign
+
+tree n xs = JS.EObj $ [JS.Prop (JS.Ident "name") (JS.EStr n)]
+                   ++ [JS.Prop (JS.Ident ("arg"++show i)) x | (i,x) <- zip [0..] xs]

src/GF/Speech/TransformCFG.hs

@@ -54,6 +54,7 @@ data CFTerm
     | CFRes Int
     | CFVar Int
     | CFConst String
+    | CFMeta
   deriving (Eq,Show)
 
 type Cat_ = String
@@ -69,7 +70,7 @@ cfgToCFRules cfg =
     where symb = mapSymbol catToString id
 	  catToString = prt
           nameToTerm (Name f prs) = CFObj f (map profileToTerm prs)
-          profileToTerm (Unify []) = CFConst "?"
+          profileToTerm (Unify []) = CFMeta
           profileToTerm (Unify xs) = CFRes (last xs) -- FIXME: unify
           profileToTerm (Constant f) = CFConst (maybe "?" prIdent (forestName f))