Re^3: Grep Pattern Match

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Re: Re^3: Grep Pattern Match by BrowserUk (Patriarch) on Dec 27, 2002 at 16:17 UTC
Slightly dangerous if the application calls for using the regex in a loop where one of the variables (eg. $month) changes, as unless the qr// is also inside the loop (in which case the optimisation benefits are lost), as the changing value of the variable won't be recognised. Examine what is said, not who speaks.	[reply]
Re^5: Grep Pattern Match by diotalevi (Canon) on Dec 27, 2002 at 16:21 UTC
Are you sure? I thought that the regex was being recompiled on each iteration to that block which is why I posted that. Fun Fun Fun in the Fluffy Chair	[reply]
Re: Re^5: Grep Pattern Match by BrowserUk (Patriarch) on Dec 27, 2002 at 16:39 UTC
Um, no. Not sure, sure, but that is what I believe to be the case following various discussions regarding the use of qr// and the contrast between it, using /o on a specific m// or s///, and the utility (or otherwise) of using the /o operator in conjuction with qr//o. What I think (though) that the concensus was that using /o on the qr// operator was a waste of time as qr// effectively already did once-only compilation. It's quite possible I have misinterreted this (again), and given that it's you that challenging my assumptions, and your likely to reply with a Devel::* dump demostrating that this is not the case, I'll turn the statement into a question and ask....Is this slightly dangerous? Examine what is said, not who speaks.	[reply]
Re^7: Grep Pattern Match by diotalevi (Canon) on Dec 27, 2002 at 17:25 UTC
Re: Re^7: Grep Pattern Match by BrowserUk (Patriarch) on Dec 27, 2002 at 18:16 UTC
Some notes below your chosen depth have not been shown here
Re: Re: Re^3: Grep Pattern Match by LostS (Friar) on Dec 27, 2002 at 16:23 UTC
I am not really going for optimisation (yet)... just want a script that will parse my log files that will search for attempted DOS's and stuff and then take those IP's and add them to our deny list. That is all I am writing this for. ----------------------- Billy S. Slinar Hardtail - Hand of Dane Datal Ephialtes - Guildless RallosZek.Net Admin/WebMaster `perl -e '$cat = "cat"; if ($cat =~ /\143\x61\x74/) { print "Its a cat! +\n"; } else { print "Thats a dog\n"; } print "\n";'` [download]	[reply] [d/l]