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https://github.com/GrammaticalFramework/gf-core.git
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manually copy the "c-runtime" branch from the old repository.
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@@ -1,7 +1,7 @@
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module GF.Command.Importing (importGrammar, importSource) where
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import PGF
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import PGF.Internal(optimizePGF,unionPGF,msgUnionPGF)
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import PGF.Internal(unionPGF)
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import GF.Compile
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import GF.Compile.Multi (readMulti)
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@@ -17,14 +17,16 @@ import GF.Data.ErrM
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import System.FilePath
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import qualified Data.Set as Set
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import qualified Data.Map as Map
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import Control.Monad(foldM)
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-- import a grammar in an environment where it extends an existing grammar
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importGrammar :: PGF -> Options -> [FilePath] -> IO PGF
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importGrammar pgf0 _ [] = return pgf0
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importGrammar :: Maybe PGF -> Options -> [FilePath] -> IO (Maybe PGF)
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importGrammar pgf0 _ [] = return pgf0
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importGrammar pgf0 opts files =
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case takeExtensions (last files) of
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".cf" -> importCF opts files getBNFCRules bnfc2cf
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".ebnf" -> importCF opts files getEBNFRules ebnf2cf
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".cf" -> fmap Just $ importCF opts files getBNFCRules bnfc2cf
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".ebnf" -> fmap Just $ importCF opts files getEBNFRules ebnf2cf
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".gfm" -> do
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ascss <- mapM readMulti files
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let cs = concatMap snd ascss
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@@ -36,14 +38,15 @@ importGrammar pgf0 opts files =
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Bad msg -> do putStrLn ('\n':'\n':msg)
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return pgf0
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".pgf" -> do
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pgf2 <- mapM readPGF files >>= return . foldl1 unionPGF
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ioUnionPGF pgf0 pgf2
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mapM readPGF files >>= foldM ioUnionPGF pgf0
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ext -> die $ "Unknown filename extension: " ++ show ext
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ioUnionPGF :: PGF -> PGF -> IO PGF
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ioUnionPGF one two = case msgUnionPGF one two of
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(pgf, Just msg) -> putStrLn msg >> return pgf
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(pgf,_) -> return pgf
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ioUnionPGF :: Maybe PGF -> PGF -> IO (Maybe PGF)
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ioUnionPGF Nothing two = return (Just two)
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ioUnionPGF (Just one) two =
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case unionPGF one two of
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Nothing -> putStrLn "Abstract changed, previous concretes discarded." >> return (Just two)
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Just pgf -> return (Just pgf)
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importSource :: Options -> [FilePath] -> IO SourceGrammar
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importSource opts files = fmap (snd.snd) (batchCompile opts files)
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@@ -56,7 +59,6 @@ importCF opts files get convert = impCF
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startCat <- case rules of
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(Rule cat _ _ : _) -> return cat
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_ -> fail "empty CFG"
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let pgf = cf2pgf (last files) (mkCFG startCat Set.empty rules)
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probs <- maybe (return . defaultProbabilities) readProbabilitiesFromFile (flag optProbsFile opts) pgf
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return $ setProbabilities probs
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$ if flag optOptimizePGF opts then optimizePGF pgf else pgf
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probs <- maybe (return Map.empty) readProbabilitiesFromFile (flag optProbsFile opts)
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let pgf = cf2pgf opts (last files) (mkCFG startCat Set.empty rules) probs
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return pgf
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