[antlr-interest] Infinite loop after upgrade to 3.3
Terence Parr
parrt at cs.usfca.edu
Tue Oct 11 12:55:06 PDT 2011
any semantic preds?
T
On Oct 11, 2011, at 12:43 PM, Ben Dotte wrote:
> Hi,
>
> I'm trying to upgrade our Java Antlr runtime from 3.1.2 to 3.3, but running
> into an infinite loop in the parser. I'm a little puzzled about the best way
> to troubleshoot this. Everything worked fine in 3.1.2.
>
> Basically, anything I try to run through the parser in my application to
> generate the AST just sits there. Watching a threaddump, I can see it
> bouncing around between the different parser rules, but it never finishes
> and never throws any exceptions either.
>
> I can run the same input through ANTLRWorks 1.4.2 and it executes just fine
> and gives me the right AST output.
>
> I also tried the 3.4 runtime with the same result.
>
> Any pointers would be much appreciated.
>
> Thanks!
>
> Ben
>
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