[antlr-interest] bug in grammar inheritance

[Silvain Piree]

Hi,

ANTLR contains a bug when using grammar inheritance.

When no importVocab is specified then ANTLR copies
the XxxTokenTypes.txt file from the supergrammar 
to the current directory instead of the target directory.

This can be fixed by replacing following code in 
"antlr/preprocessor/Grammar.java":

OLD CODE in method expandInPlace():

String newImportVocabFileName =         
     antlrTool.fileMinusPath(superExportVocabFileName);

NEW CODE in method expandInPlace()::

String newImportVocabFileName =         
     antlrTool.getOutputDirectory() +
     System.getProperty("file.separator") +
     antlrTool.fileMinusPath(superExportVocabFileName);

Silvain



 

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