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Re: Parse::RecDescent help

by gjb (Vicar)
on Mar 30, 2004 at 07:38 UTC ( #340878=note: print w/ replies, xml ) Need Help??


in reply to Parse::RecDescent help

Unless I miss something obvious, the language you're parsing is regular. Parse::RecDescent is a tool to deal with context free languages. Since every regular language is context free, you can use Parse::RecDescent to deal with it, but it's overkill.

Parsing a context free language is a relatively costly process compared to parsing a regular language (O(n^3) vs. O(n)) and since you're parsing lots of data, that is quite a difference. In this case it would almost certainly be much faster to implement your own parser as was suggested above.

Just my 2 cents, -gjb-


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