[antlr-interest] Re: Problem with x: (A)(B)? ;

[dotlessbraille]

OK, let me try again.

I have a large grammar which works fine. Lexer rules of the form 
A:'a'('b')? and A:'a'('b')* both generate the expected 
implementation (in Java).  A parser rule of the form x:A(B)* also 
works as expected.  

However, when I added a parser rule of the form x:A(B)?, ANTLR 
generated a switch statement which requires an EOF in the case there 
is not a B.

Is this a bug or a feature?

Thanks.



 
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