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module GF.Command.Importing (importGrammar, importSource) where
import GF.Compile
import GF.GFCC.DataGFCC
import GF.GFCC.API
import GF.Grammar.Grammar (SourceGrammar) -- for cc command
import GF.Infra.UseIO
import GF.Infra.Option
import GF.Data.ErrM
import Data.List (nubBy)
import System.FilePath
-- import a grammar in an environment where it extends an existing grammar
importGrammar :: MultiGrammar -> Options -> [FilePath] -> IO MultiGrammar
importGrammar mgr0 opts files =
case takeExtensions (last files) of
s | elem s [".gf",".gfo"] -> do
res <- appIOE $ compileToGFCC opts files
case res of
Ok gfcc2 -> do let gfcc3 = unionGFCC (gfcc mgr0) gfcc2
return $ MultiGrammar gfcc3
Bad msg -> do putStrLn msg
return mgr0
".gfcc" -> do
gfcc2 <- mapM file2gfcc files >>= return . foldl1 unionGFCC
let gfcc3 = unionGFCC (gfcc mgr0) gfcc2
return $ MultiGrammar gfcc3
importSource :: SourceGrammar -> Options -> [FilePath] -> IO SourceGrammar
importSource src0 opts files = do
src <- appIOE $ batchCompile opts files
case src of
Ok gr -> return gr
Bad msg -> do
putStrLn msg
return src0
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