Many fixes to JSGF format (never tested before). Implemented JSGF+SISR. Left recursion removal destroys SISR, must be fixed.

src/GF/Speech/PrJSGF.hs

@@ -22,57 +22,85 @@ module GF.Speech.PrJSGF (jsgfPrinter) where
 import GF.Conversion.Types
 import GF.Data.Utilities
 import GF.Formalism.CFG
-import GF.Formalism.Utilities (Symbol(..))
+import GF.Formalism.Utilities (Symbol(..), NameProfile(..), Profile(..))
 import GF.Infra.Ident
 import GF.Infra.Print
 import GF.Infra.Option
 import GF.Probabilistic.Probabilistic (Probs)
+import GF.Speech.SISR
 import GF.Speech.SRG
 import GF.Speech.RegExp
 
+import Debug.Trace
+
 jsgfPrinter :: Ident -- ^ Grammar name
             -> String    -- ^ Start category
-	    -> Options -> Maybe Probs -> CGrammar -> String
-jsgfPrinter name start opts probs cfg = prJSGF srg ""
+	    -> Options 
+            -> Maybe SISRFormat
+            -> Maybe Probs -> CGrammar -> String
+jsgfPrinter name start opts sisr probs cfg = trace (show srg) $ prJSGF srg sisr ""
     where srg = makeSimpleSRG name start opts probs cfg
 
-prJSGF :: SRG -> ShowS
-prJSGF (SRG{grammarName=name,startCat=start,origStartCat=origStart,rules=rs})
-    = header . mainCat . unlinesS (map prRule rs)
+prJSGF :: SRG -> Maybe SISRFormat -> ShowS
+prJSGF (SRG{grammarName=name,startCat=start,origStartCat=origStart,rules=rs}) sisr
+    = header . nl
+      . mainCat . nl
+      . unlinesS topCatRules . nl
+      . unlinesS (map prRule rs)
     where
     header = showString "#JSGF V1.0 UTF-8;" . nl 
-	     . comments ["JSGF speech recognition grammar for " ++ name,
-			 "Generated by GF"] . nl 
+	     . comment ("JSGF speech recognition grammar for " ++ name)
+             . comment "Generated by GF"
 	     . showString ("grammar " ++ name ++ ";") . nl
-	     . nl
-    mainCat = comments ["Start category: " ++ origStart] . nl 
-	      . showString "public <MAIN> = " . prCat start . showChar ';' . nl . nl
+    mainCat = comment ("Start category: " ++ origStart)
+	      . rule True "MAIN" [prCat start]
     prRule (SRGRule cat origCat rhs) = 
-	comments [origCat] . nl
-        . prCat cat . showString " = " . joinS " | " (map prAlt (ebnfSRGAlts rhs)) . nl
+	comment origCat
+        . rule False cat (map prAlt (ebnfSRGAlts rhs))
     -- FIXME: use the probability
-    prAlt (EBnfSRGAlt mp _ rhs) = prItem rhs
+    prAlt (EBnfSRGAlt mp n rhs) = tag sisr (profileInitSISR n) . showChar ' '. prItem sisr rhs
+
+    topCatRules = [rule True (catFormId tc) (map (it tc) cs) | (tc,cs) <- topCats]
+        where topCats = buildMultiMap [(cfgCatToGFCat origCat, cat) | SRGRule cat origCat _ <- rs]
+              it i c = prCat c . tag sisr [(EThis :. catFieldId i) := (ERef c)]
+
+catFormId :: String -> String
+catFormId = (++ "_cat")
+
+catFieldId :: String -> String
+catFieldId = (++ "_field")
 
 prCat :: SRGCat -> ShowS
 prCat c = showChar '<' . showString c . showChar '>'
 
-prItem :: EBnfSRGItem -> ShowS
-prItem = f
+prItem :: Maybe SISRFormat -> EBnfSRGItem -> ShowS
+prItem sisr = f 1
   where
-    f (REUnion [])  = showString "<VOID>"
-    f (REUnion xs)  = wrap "(" (joinS " | " (map f xs)) ")"
-    f (REConcat []) = showString "<NULL>"
-    f (REConcat xs) = wrap "(" (unwordsS (map f xs)) ")"
-    f (RERepeat x)  = wrap "(" (f x) ")" . showString "*"
-    f (RESymbol s)  = prSymbol s
+    f _ (REUnion [])  = showString "<VOID>"
+    f p (REUnion xs)  = (if p >= 1 then paren else id) (joinS " | " (map (f 1) xs))
+    f _ (REConcat []) = showString "<NULL>"
+    f p (REConcat xs) = (if p >= 3 then paren else id) (unwordsS (map (f 2) xs))
+    f p (RERepeat x)  = f 3 x . showString "*"
+    f _ (RESymbol s)  = prSymbol sisr s
 
-prSymbol :: Symbol SRGNT Token -> ShowS
-prSymbol (Cat (c,_)) = prCat c
-prSymbol (Tok t) | all isPunct (prt t) = id -- removes punctuation
-                 | otherwise = wrap "\"" (prtS t) "\""
+prSymbol :: Maybe SISRFormat -> Symbol SRGNT Token -> ShowS
+prSymbol sisr (Cat n@(c,_)) = prCat c . tag sisr (catSISR n)
+prSymbol _ (Tok t) | all isPunct (prt t) = id -- removes punctuation
+                   | otherwise = prtS t -- FIXME: quote if there is whitespace or odd chars
+
+tag :: Maybe SISRFormat -> [SISRExpr] -> ShowS
+tag Nothing _ = id
+tag _ [] = id
+tag (Just fmt) t = showString "{" . showString (prSISR fmt t) . showString "}"
 
 isPunct :: Char -> Bool
 isPunct c = c `elem` "-_.;.,?!"
 
-comments :: [String] -> ShowS
-comments = unlinesS . map (showString . ("// " ++))
+comment :: String -> ShowS
+comment s = showString "// " . showString s . nl
+
+paren f = wrap "(" f ")"
+
+rule :: Bool -> SRGCat -> [ShowS] -> ShowS
+rule pub c xs = p . prCat c . showString " = " . joinS " | " xs . showChar ';' . nl
+  where p = if pub then showString "public " else id

src/GF/Speech/PrSRGS.hs

@@ -11,7 +11,7 @@
 -- categories in the grammar
 -----------------------------------------------------------------------------
 
-module GF.Speech.PrSRGS (SISRFormat(..), srgsXmlPrinter) where
+module GF.Speech.PrSRGS (srgsXmlPrinter) where
 
 import GF.Data.Utilities
 import GF.Data.XML
@@ -71,19 +71,11 @@ prSrgsXml sisr (SRG{grammarName=name,startCat=start,
 rule :: String -> [XML] -> XML
 rule i = Tag "rule" [("id",i)]
 
-cfgCatToGFCat :: String -> String
-cfgCatToGFCat = takeWhile (/='{')
-
 mkProd :: Maybe SISRFormat -> EBnfSRGAlt -> XML
-mkProd sisr (EBnfSRGAlt mp n@(Name f prs) rhs) = Tag "item" w (t ++ xs)
+mkProd sisr (EBnfSRGAlt mp n rhs) = Tag "item" w (t ++ xs)
   where xs = [mkItem sisr rhs]
         w = maybe [] (\p -> [("weight", show p)]) mp
-        t = [tag sisr ts]
-        ts = [(EThis :. "name") := (EStr (prIdent f))] ++
-             [(EThis :. ("arg" ++ show n)) := (EStr (argInit (prs!!n))) 
-                  | n <- [0..length prs-1]]
-        argInit (Unify _) = "?"
-        argInit (Constant f) = maybe "?" prIdent (forestName f)
+        t = [tag sisr (profileInitSISR n)]
 
 mkItem :: Maybe SISRFormat -> EBnfSRGItem -> XML
 mkItem sisr = f
@@ -94,15 +86,14 @@ mkItem sisr = f
     f (RESymbol s)  = symItem sisr s
 
 symItem :: Maybe SISRFormat -> Symbol SRGNT Token -> XML
-symItem sisr (Cat (c,slots)) = Tag "item" [] ([Tag "ruleref" [("uri","#" ++ c)] []]++t)
-  where 
-  t = if null ts then [] else [tag sisr ts]
-  ts = [(EThis :. ("arg" ++ show s)) := (ERef c) | s <- slots]
+symItem sisr (Cat n@(c,_)) = 
+    Tag "item" [] [Tag "ruleref" [("uri","#" ++ c)] [], tag sisr (catSISR n)]
 symItem _ (Tok t) = Tag "item" [] [Data (showToken t)]
 
 tag :: Maybe SISRFormat -> [SISRExpr] -> XML
 tag Nothing _ = Empty
-tag (Just fmt) ts = Tag "tag" [] [Data (join "; " (map (prSISR fmt) ts))]
+tag _ [] = Empty
+tag (Just fmt) ts = Tag "tag" [] [Data (prSISR fmt ts)]
 
 
 catFormId :: String -> String

src/GF/Speech/SISR.hs

@@ -10,10 +10,19 @@
 --
 -----------------------------------------------------------------------------
 
-module GF.Speech.SISR (SISRFormat(..), SISRExpr(..), prSISR) where
+module GF.Speech.SISR (SISRFormat(..), SISRExpr(..), prSISR, 
+                       profileInitSISR, catSISR) 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.SRG
+
+
 infixl 8 :.
 infixr 1 :=
 
@@ -32,8 +41,8 @@ data SISRExpr = SISRExpr := SISRExpr
               | ENew String [SISRExpr]
   deriving Show
 
-prSISR :: SISRFormat -> SISRExpr -> String
-prSISR fmt = f
+prSISR :: SISRFormat -> [SISRExpr] -> String
+prSISR fmt = join "; " . map f
   where
    f e = 
     case e of
@@ -43,4 +52,15 @@ prSISR fmt = f
       ERef y -> "$" ++ y
       EStr s -> show s
       EApp x ys -> f x ++ "(" ++ concat (intersperse "," (map f ys)) ++ ")"
-      ENew n ys -> "new " ++ n ++ "(" ++ concat (intersperse "," (map f ys)) ++ ")"
+      ENew n ys -> "new " ++ n ++ "(" ++ concat (intersperse "," (map f ys)) ++ ")"
+
+profileInitSISR :: Name -> [SISRExpr]
+profileInitSISR (Name f prs) =
+    [(EThis :. "name") := (EStr (prIdent f))] ++
+    [(EThis :. ("arg" ++ show n)) := (EStr (argInit (prs!!n))) 
+                  | n <- [0..length prs-1]]
+  where argInit (Unify _) = "?"
+        argInit (Constant f) = maybe "?" prIdent (forestName f)
+
+catSISR :: SRGNT -> [SISRExpr]
+catSISR (c,slots) = [(EThis :. ("arg" ++ show s)) := (ERef c) | s <- slots]

src/GF/Speech/SRG.hs

@@ -22,7 +22,7 @@ module GF.Speech.SRG (SRG(..), SRGRule(..), SRGAlt(..),
                       SRGCat, SRGNT,
                       makeSimpleSRG, makeSRG
                      , lookupFM_, prtS
-                     , topDownFilter
+                     , topDownFilter, cfgCatToGFCat
                      , EBnfSRGAlt(..), EBnfSRGItem
                      , ebnfSRGAlts
                      ) where
@@ -168,6 +168,9 @@ topDownFilter srg@(SRG { startCat = start, rules = rs }) = srg { rules = rs' }
 allSRGCats :: SRG -> [String]
 allSRGCats SRG { rules = rs } = [c | SRGRule c _ _ <- rs]
 
+cfgCatToGFCat :: SRGCat -> String
+cfgCatToGFCat = takeWhile (/='{')
+
 --
 -- * Size-optimized EBNF SRGs
 --

src/GF/UseGrammar/Custom.hs

@@ -62,6 +62,7 @@ import GF.CF.CFtoSRG
 import GF.Speech.PrGSL (gslPrinter)
 import GF.Speech.PrJSGF (jsgfPrinter)
 import qualified GF.Speech.PrSRGS as SRGS
+import qualified GF.Speech.SISR as SISR
 import GF.Speech.PrSLF
 import GF.Speech.PrFA (faGraphvizPrinter,regularPrinter,faCPrinter)
 import GF.Speech.PrRegExp (regexpPrinter)
@@ -252,7 +253,11 @@ customGrammarPrinter =
                                  in gslPrinter name start opts Nothing $ stateCFG s)
   ,(strCI "jsgf",    \opts s -> let name = cncId s
                                     start = getStartCatCF opts s
-                                 in jsgfPrinter name start opts Nothing $ stateCFG s)
+                                 in jsgfPrinter name start opts Nothing Nothing $ stateCFG s)
+  ,(strCI "jsgf_sisr_old", 
+                     \opts s -> let name = cncId s
+                                    start = getStartCatCF opts s
+                                 in jsgfPrinter name start opts (Just SISR.SISROld) Nothing $ stateCFG s)
   ,(strCI "srgs_xml", \opts s -> let name = cncId s
                                      start = getStartCatCF opts s
                                   in SRGS.srgsXmlPrinter name start opts Nothing Nothing $ stateCFG s)
@@ -264,7 +269,7 @@ customGrammarPrinter =
   ,(strCI "srgs_xml_sisr_old", 
               \opts s -> let name = cncId s
                              start = getStartCatCF opts s
-                          in SRGS.srgsXmlPrinter name start opts (Just SRGS.SISROld) Nothing $ stateCFG s)
+                          in SRGS.srgsXmlPrinter name start opts (Just SISR.SISROld) Nothing $ stateCFG s)
   ,(strCI "vxml", \opts s -> let start = getStartCat opts s
                               in grammar2vxml start s)
   ,(strCI "slf",  \opts s -> let start = getStartCatCF opts s