[antlr-interest] Infinite loop after upgrade to 3.3

[Terence Parr]

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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