reorganize the directories under src, and rescue the JavaScript interpreter from deprecated

src/compiler/GF/Compile/Export.hs

@@ -0,0 +1,64 @@
+module GF.Compile.Export where
+
+import PGF.CId
+import PGF.Data (PGF(..))
+import GF.Compile.GFCCtoHaskell
+import GF.Compile.GFCCtoProlog
+import GF.Compile.GFCCtoJS
+import GF.Compile.PGFPretty
+import GF.Infra.Option
+import GF.Speech.CFG
+import GF.Speech.PGFToCFG
+import GF.Speech.SRGS_ABNF
+import GF.Speech.SRGS_XML
+import GF.Speech.JSGF
+import GF.Speech.GSL
+import GF.Speech.SRG
+import GF.Speech.VoiceXML
+import GF.Speech.SLF
+import GF.Speech.PrRegExp
+
+import Data.Maybe
+import System.FilePath
+
+-- top-level access to code generation
+
+exportPGF :: Options
+          -> OutputFormat 
+          -> PGF 
+          -> [(FilePath,String)] -- ^ List of recommended file names and contents.
+exportPGF opts fmt pgf = 
+    case fmt of
+      FmtPGFPretty    -> multi "txt" prPGFPretty
+      FmtPMCFGPretty  -> single "pmcfg" prPMCFGPretty
+      FmtJavaScript   -> multi "js"  pgf2js
+      FmtHaskell      -> multi "hs"  (grammar2haskell opts name)
+      FmtProlog       -> multi "pl"  grammar2prolog 
+      FmtProlog_Abs   -> multi "pl"  grammar2prolog_abs 
+      FmtBNF          -> single "bnf"   bnfPrinter
+      FmtEBNF         -> single "ebnf"  (ebnfPrinter opts)
+      FmtSRGS_XML     -> single "grxml" (srgsXmlPrinter opts)
+      FmtSRGS_XML_NonRec -> single "grxml" (srgsXmlNonRecursivePrinter opts)
+      FmtSRGS_ABNF    -> single "gram" (srgsAbnfPrinter opts)
+      FmtSRGS_ABNF_NonRec -> single "gram" (srgsAbnfNonRecursivePrinter opts)
+      FmtJSGF         -> single "jsgf"  (jsgfPrinter opts)
+      FmtGSL          -> single "gsl"   (gslPrinter opts)
+      FmtVoiceXML     -> single "vxml"  grammar2vxml
+      FmtSLF          -> single "slf"  slfPrinter
+      FmtRegExp       -> single "rexp" regexpPrinter
+      FmtFA           -> single "dot"  slfGraphvizPrinter
+ where
+   name = fromMaybe (showCId (absname pgf)) (flag optName opts)
+
+   multi :: String -> (PGF -> String) -> [(FilePath,String)]
+   multi ext pr = [(name <.> ext, pr pgf)]
+
+   single :: String -> (PGF -> CId -> String) -> [(FilePath,String)]
+   single ext pr = [(showCId cnc <.> ext, pr pgf cnc) | cnc <- cncnames pgf]
+
+-- | Get the name of the concrete syntax to generate output from.
+-- FIXME: there should be an option to change this.
+outputConcr :: PGF -> CId
+outputConcr pgf = case cncnames pgf of
+                    []     -> error "No concrete syntax."
+                    cnc:_  -> cnc