The <commit> does not prevent the parser to backtrack through it - it's different from the Perl6 <commit> or Perl5 (*COMMIT). With Parse::RecDescent, a <commit> only means not to try any other alternative for the current rule. Which means for your job_statement production to not thrown an error if, after matching job_name, it's force to backtrack.

You could make <commit> behave the way it does in Perl6 by adding, for each rule that has a <commit> in one of its alternatives, a final <uncommit><reject> alternative.

In reply to Re: Parse::RecDescent grammar that winds its way all the way back to start by JavaFan
in thread Parse::RecDescent grammar that winds its way all the way back to start by locked_user sundialsvc4

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