1
0
forked from GitHub/gf-core
Files
gf-core/src/GF/Compile/Export.hs

67 lines
2.3 KiB
Haskell

module GF.Compile.Export where
import PGF.CId
import PGF.Data (PGF(..))
import PGF.Raw.Print (printTree)
import PGF.Raw.Convert (fromPGF)
import GF.Compile.GFCCtoHaskell
import GF.Compile.GFCCtoProlog
import GF.Compile.GFCCtoJS
import GF.Infra.Option
import GF.Speech.CFG
import GF.Speech.PGFToCFG
import GF.Speech.SRGS_XML
import GF.Speech.JSGF
import GF.Speech.GSL
import GF.Speech.VoiceXML
import GF.Speech.SLF
import GF.Speech.PrRegExp
import GF.Text.UTF8
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
FmtPGF -> multi "pgf" printPGF
FmtJavaScript -> multi "js" pgf2js
FmtHaskell -> multi "hs" (grammar2haskell hsPrefix name)
FmtHaskell_GADT -> multi "hs" (grammar2haskellGADT hsPrefix name)
FmtProlog -> multi "pl" grammar2prolog
FmtProlog_Abs -> multi "pl" grammar2prolog_abs
FmtBNF -> single "bnf" bnfPrinter
FmtSRGS_XML -> single "grxml" (srgsXmlPrinter sisr)
FmtSRGS_XML_NonRec -> single "grxml" srgsXmlNonRecursivePrinter
FmtJSGF -> single "jsgf" (jsgfPrinter sisr)
FmtGSL -> single "gsl" gslPrinter
FmtVoiceXML -> single "vxml" grammar2vxml
FmtSLF -> single "slf" slfPrinter
FmtRegExp -> single "rexp" regexpPrinter
FmtFA -> single "dot" slfGraphvizPrinter
where
name = fromMaybe (prCId (absname pgf)) (moduleFlag optName opts)
sisr = flag optSISR opts
hsPrefix = flag optHaskellPrefix opts
multi :: String -> (PGF -> String) -> [(FilePath,String)]
multi ext pr = [(name <.> ext, pr pgf)]
single :: String -> (PGF -> CId -> String) -> [(FilePath,String)]
single ext pr = [(prCId 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
printPGF :: PGF -> String
printPGF = encodeUTF8 . printTree . fromPGF