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Date: Fri, 28 Aug 2009 00:50:35 +0200 From: To: boost-users@lists.boost.org Subject: Re: [Boost-users] pathological regex?
Ok, first of all this isn't answer to my question. Secondly - do you have any performance test to campere these libraries?
I've never used Spirit but using Boost regex and greta for repetitive stuff I finally had to write my own very limited compiler- however, it is very important if you do that to have a known-good library against which you can test your optimized stuff. I'm not sure what Spirit does at compile time as opposed to runtime but I guess a code generator may be something to consider. If you really need speed for a fixed expression, I think you are stuck with hard coded logic. Parsing is never really free. Even without a fixed literal expression, you may be able to define a class of regex's which your custom version could accommodate and be fast enough for what you need but not requiring new code each time.
-- Regards
Michał Nowotka _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
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