[antlr-interest] Match A with exception of B .....how do I do that?
Michael Bedward
michael.bedward at gmail.com
Sun Feb 22 19:30:00 PST 2009
>
> Assume, there are two rules:
>
> 1) A : character_set_a;
>
> 2) B : character_set_b;
>
> How do I set up a rule for parsing a character which must be in the
>
> character_set_a but not in character_set_b?
>
Are the characters in the A and B sets mutually exclusive ? I'm
guessing they are not otherwise you would not be asking your question.
But perhaps if you provide a specific example of something that
wasn't working for you during your sleepless weekend you will get
better suggestions.
Michael
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