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