[antlr-interest] Manually failing a match

[Gerald B. Rosenberg]

At 08:56 AM 3/14/2007, Mark Bednarczyk wrote:
>I need to manually fail a rule that has already been matched.

Cannot fail a rule after the match has been made.  Use a validating 
semantic predicate to selectively fail the rule during the 
match.  You may need to catch and ignore a SemanticException on the 
rule when it is failed.


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