Files
gf-core/src/GF/Command/Importing.hs
2007-12-13 20:19:47 +00:00

32 lines
1.1 KiB
Haskell

module GF.Command.Importing (importGrammar) where
import GF.Devel.Compile
import GF.Devel.GrammarToGFCC
import GF.GFCC.OptimizeGFCC
import GF.GFCC.CheckGFCC
import GF.GFCC.DataGFCC
import GF.GFCC.API
import qualified GF.Command.AbsGFShell as C
import GF.Devel.UseIO
import GF.Infra.Option
import Data.List (nubBy)
-- import a grammar in an environment where it extends an existing grammar
importGrammar :: MultiGrammar -> Options -> [FilePath] -> IO MultiGrammar
importGrammar mgr0 opts files = do
gfcc2 <- case fileSuffix (last files) of
s | elem s ["gf","gfo"] -> do
gr <- batchCompile opts files
let name = justModuleName (last files)
let (abs,gfcc0) = mkCanon2gfcc opts name gr
gfcc1 <- checkGFCCio gfcc0
return $ if oElem (iOpt "noopt") opts then gfcc1 else optGFCC gfcc1
"gfcc" ->
mapM file2gfcc files >>= return . foldl1 unionGFCC
let gfcc3 = unionGFCC (gfcc mgr0) gfcc2
return $ MultiGrammar gfcc3
(nubBy (\ (x,_) (y,_) -> x == y) (gfcc2parsers gfcc3 ++ parsers mgr0))
-- later coming parsers override