[antlr-interest] exception in expression evalutor tutorial (ANTLRWorks)
Philip Dutton
philipdutton at hotmail.com
Thu Mar 29 10:34:36 PDT 2007
Newbie question about ANTLRWorks (maybe you all can help):
I used the tutorial expression grammar in ANTLRWorks to get familiar with
ANTLR in general. If I debug and play with the expression "2+2*(2-2)", I
eventually see a "MismatchedTokenException" on the right side of the STAT
node in the parser tree view. When playing with other expressions I see
this exception often but it appears that the expression was parsed
correctly. I did not expect to see anything about "exceptions" when using
the tutorial. Anyway, I was not expecting to see any exceptions in the
parser tree view for this simple tutorial.
Am I missing something? I just get nervous when I see the word "exception"
anywhere in a tutorial...
Thanks,
Philip R. Dutton
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