If I was to use Parse::RecDescent, would it go faster?
Maybe.

(is Parse::RecDescent all in perl?)
Yes, but that may be irrelevant.

Before proceeding, you may want to try figuring out exactly where your file parsing script is spending its time. Packages like Devel::Timer and Devel::Profiler can help with that. The thing is that you may be surprised by the results -- the slow part may not be your parsing logic, but something else.

Do not rebuke them with harsh words ... but rather lead them gently - with URLs - so that they may learn wisdom.

In reply to Re: Parse::RecDescent and need for speed by VSarkiss
in thread Parse::RecDescent and need for speed by EchoAngel

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