Get speechLanguage flag from both command-line and grammar. Reformat it to RFC3066 format (- instead of _) and use it in SRGS, VoiceXML and JSGF.

src/GF/Speech/PrJSGF.hs

@@ -34,6 +34,7 @@ import GF.Compile.ShellState (StateGrammar)
 
 import Data.Char
 import Data.List
+import Data.Maybe
 import Text.PrettyPrint.HughesPJ
 import Debug.Trace
 
@@ -44,13 +45,15 @@ jsgfPrinter :: Maybe SISRFormat
 jsgfPrinter sisr opts s = show $ prJSGF sisr $ makeSimpleSRG opts s
 
 prJSGF :: Maybe SISRFormat -> SRG -> Doc
-prJSGF sisr srg@(SRG{grammarName=name,startCat=start,origStartCat=origStart,rules=rs})
+prJSGF sisr srg@(SRG{grammarName=name,grammarLanguage=ml,
+                     startCat=start,origStartCat=origStart,rules=rs})
     = header $++$ mainCat $++$ vcat topCatRules $++$ foldr ($++$) empty (map prRule rs)
     where
-    header = text "#JSGF V1.0 UTF-8;" $$
+    header = text "#JSGF" <+> text "V1.0" <+> text "UTF-8" <+> lang <> char ';' $$
              comment ("JSGF speech recognition grammar for " ++ name) $$
              comment "Generated by GF" $$
 	     text ("grammar " ++ name ++ ";") 
+    lang = maybe empty text ml
     mainCat = comment ("Start category: " ++ origStart) $$
 	      rule True "MAIN" [prCat start]
     prRule (SRGRule cat origCat rhs) =