[antlr-interest] abort parsing with special token
Ric Klaren
klaren at cs.utwente.nl
Tue Aug 17 08:06:49 PDT 2004
On Tue, Aug 17, 2004 at 02:55:37PM -0000, Oliver Leimig wrote:
> I'm currently creating an ANTLR grammar for target language java.
> My grammar shall have a command "%cancel" to abort parsing when this
> command appears in the InputStream.
>
> What's probably the best way to tell ANTLR to stopp reading from the
> InputStream?
> { doCancel(); } ?
> Perhaps filtering the Stream in advance? How?
Throw an exception out of it when you encounter the %cancel token.
Cheers,
Ric
--
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---- Ric Klaren ----- j.klaren at utwente.nl ----- +31 53 4893755 ----
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Words fly like arrows
as if we knew what was right and wrong. --- Chuang Tsu
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