[antlr-interest] Non-Default Exception-Handling - Synching to the end of the rule

[Colm McHugh]

This may have come up before, but I am wondering if
there is a convenient way to synch to the end of the
rule when doing non-default exception handling ? I
like the way the default exception handler does this,
and it would be great if there was a simple way to
apply this with non-default exception-handling. 

The reason I am asking is because with non-default
exception handling, the lookahead is not advanced, and
multiple exceptions can be raised for the same syntax
error.  

I could make my exception-handling code ignore the
exception if it sees that it has already processed the
message, but hey I like to do as little work as
possible.

I could also take a really good look at the placement
of my exception-handling blocks in my grammar; I
suspect that some may be superfluous, and merely just
rethrowing the same exception message. I am paranoid
that all exceptions are trapped in the parser, and I
also want to be able to report as many errors as
possible to the user.

Anyhoo, thanks for any opinions/advice!

Colm.


		
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