Re: Re: Removing backtracking from a .*? regexp

The index() isn't really all that much faster than a regexp. BrowserUK was testing this once, I played with the benchmark and noticed that the index test was a percentage point faster. At this point I'd prefer people just recommend the regexp since it is as fast and is notationally less complex.

Comment on Re: Re: Removing backtracking from a .*? regexp

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Re: Re: Re: Removing backtracking from a .*? regexp by Art_XIV (Hermit) on Nov 17, 2003 at 21:02 UTC
Cool beans if so! Sounds like a good candidate for a Meditation. Hanlon's Razor - "Never attribute to malice that which can be adequately explained by stupidity"	[reply]
Re: Re: Re: Re: Removing backtracking from a .*? regexp by BrowserUk (Patriarch) on Nov 17, 2003 at 21:30 UTC
No meditation necessary. `print 'Found it' if $s =~ /$thing/; print 'Found it' if 1+index( $s, $thing );` [download] Both work. The latter is marginally quicker under most circumstances, but as you can see it is notationally more complex. If you find the additional complexity intimidating, or don't need the (very) marginal additional performance, stick with the former. Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "Think for yourself!" - Abigail Hooray! Wanted!	[reply] [d/l]