[antlr-interest] syntactic predicates and exceptions
Terence Parr
parrt at cs.usfca.edu
Tue Oct 18 11:19:23 PDT 2005
On Oct 18, 2005, at 9:03 AM, Don Caton wrote:
> Ter:
>
> Exceptions should be used for just that: exceptions. A rule that
> fails to
> match is not an exceptional condition,
Hi Don! :)
Really? When was the last time an HTTP server got a bad GET request
from a browser? That said, I'm sure the java compiler sees 99%
erroneous programs from my students? ;)
> it is an expected condition and as
> such, should be handled with normal flow control constructs.
Agreed, but parse errors are errors if ya ask me...
Perhaps you're right though: adding some IFs won't be that bad.
Ter
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