[antlr-interest] Getting feedback from grammar errors
Patrick Petermair
patrick.petermair at openforce.com
Tue Aug 3 10:22:51 PDT 2010
Hey list!
We are in the process of developing a timetracking application. One part
of it is some kind of "powerstring" that enables users to execute
complex commands. The powerstring has to follow certain rules / grammar
definitions.
This is where antlr comes in. We were able to write a grammar that
follows all those rules. Unfortunately we just get an exception with no
meaningful description when something went wrong (= the provided string
didn't match the grammar definition).
Is there a way to get some more feedback from antlr? If so, what would
be the way to do it?
We want to provide the user with more information than just "Syntax
error" or "MismatchedTokenException(-1!=6)" which isn't very helpful. If
we could get at least the position in the String where the error occured...
Cheers,
Patrick
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