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module Main where
import GFC
import GFI
import GF.Data.ErrM
import GF.Infra.Option
import GF.Infra.UseIO
import Paths_gf
import Data.Version
import System.Environment (getArgs)
import System.Exit
import System.IO
main :: IO ()
main =
do args <- getArgs
case parseOptions args of
Ok (opts,files) -> mainOpts opts files
Bad err -> do hPutStrLn stderr err
hPutStrLn stderr "You may want to try --help."
exitFailure
mainOpts :: Options -> [FilePath] -> IO ()
mainOpts opts files =
case flag optMode opts of
ModeVersion -> putStrLn $ "Grammatical Framework (GF) version " ++ showVersion version
ModeHelp -> putStrLn helpMessage
ModeInteractive -> mainGFI opts files
ModeCompiler -> dieIOE (mainGFC opts files)
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