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initial support for BNFC syntax in context-free grammars for GF. Not all features are supported yet. Based on contribution from Gleb Lobanov

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krasimir
2016-03-21 13:27:44 +00:00
parent da10bb33c7
commit c8ebe09315
6 changed files with 47 additions and 23 deletions
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7
src/compiler/GF/Command/Importing.hs
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@@ -5,10 +5,11 @@ import PGF.Internal(optimizePGF,unionPGF,msgUnionPGF)
import GF.Compile
import GF.Compile.Multi (readMulti)
import GF.Compile.GetGrammar (getCFRules, getEBNFRules)
import GF.Compile.GetGrammar (getBNFCRules, getEBNFRules)
import GF.Grammar (SourceGrammar) -- for cc command
import GF.Grammar.CFG
import GF.Grammar.BNFC
import GF.Grammar.EBNF
import GF.Grammar.CFG
import GF.Compile.CFGtoPGF
import GF.Infra.UseIO(die,tryIOE)
import GF.Infra.Option
@@ -22,7 +23,7 @@ importGrammar :: PGF -> Options -> [FilePath] -> IO PGF
importGrammar pgf0 _ [] = return pgf0
importGrammar pgf0 opts files =
case takeExtensions (last files) of
".cf" -> importCF opts files getCFRules id
".cf" -> importCF opts files getBNFCRules bnfc2cf
".ebnf" -> importCF opts files getEBNFRules ebnf2cf
".gfm" -> do
ascss <- mapM readMulti files