Cool tool for Regex testing: all in-browser testing.. http://gskinner.com/RegExr/
<http://gskinner.com/RegExr/>what about [?&]size=0*10([&#].*)?$ to match when size=10 or size=0000010 (logically the same thing..) - Andrew Muraco On Wed, Sep 8, 2010 at 1:05 PM, justin <jus...@justinhileman.info> wrote: > that doesn't do what you think it does. it will fail on > > http://www.example.com/events/events?node=&start=0&size=0&sort=event > http://www.example.com/events/events?node=&start=0&size=1&sort=event > http://www.example.com/events/events?node=&start=0&size=11&sort=event > http://www.example.com/events/events?node=&start=0&size=100&sort=event > > and any "size" value starting with either 0 or 1. > > use this instead: > > [?&]size=((?!10)|\d|1[1-9]|[02-9]\d|\d{3,})(&|#|$) > > > -- justin > > > On Wed, Sep 8, 2010 at 11:45 AM, <p...@blu-studio.com> wrote: > > > > As usual lots of great inoput, but here is what seems to work for me > testing > > it against some actula URLs: > > ^http://www\\.example\\.com/events/events?.*size=[^10].* > > > > Just using size does not equal 10. > > > > -------- Original Message -------- > > Subject: Re: [nyphp-talk] REGEXP Solution Needed > > From: John Campbell <jcampbe...@gmail.com> > > Date: Wed, September 08, 2010 7:47 am > > To: NYPHP Talk <talk@lists.nyphp.org> > > > > On Wed, Sep 8, 2010 at 10:27 PM, <p...@blu-studio.com> wrote: > >> I believe this is what I am looking for: > >> ^http://www\\.example\\.com/events/events?.*size=[\d|\d\d^10].* > > > > Test that, but I am quite sure it doesn't do what you want. I think > > you need negative lookahead, which typically has syntax like > > > > size=(?!10) > > > > but that isn't quite right, because it will negate with size=100. > > > > so I think you need: > > > > (size=(?!10))|(size=\d{3,})) > > > > Regards, > > John Campbell > > > >> If anyone can polish this more or if I am wrong, pls give a note. > Thanks. > >> > >> -------- Original Message -------- > >> Subject: Re: [nyphp-talk] REGEXP Solution Needed > >> From: <p...@blu-studio.com> > >> Date: Wed, September 08, 2010 6:52 am > >> To: "NYPHP Talk" <talk@lists.nyphp.org> > >> > >> This is a great technique, thanks, Scott. > >> But, I'm putting this into the Do Not Crawl front end of a google search > >> appliance and it has to be done with gnu regexp. So I've been working on > >> it > >> and I got something like this for starters: > >> ^http://www\\.example\\.com/events/events\\?\.size=[\d|\d\d^10]\. > >> > >> Where with the above I am intending to match my domain, then the > directory > >> path events/events followed by a questin mark, then any characters > leading > >> up to size = any one or two digits but not 10 followed by any > characters. > >> That is where I need to be going. > >> Peter > >> > >> -------- Original Message -------- > >> Subject: Re: [nyphp-talk] REGEXP Solution Needed > >> From: Scott Mattocks <sc...@crisscott.com> > >> Date: Wed, September 08, 2010 6:19 am > >> To: NYPHP Talk <talk@lists.nyphp.org> > >> > >> On 09/08/2010 08:30 AM, p...@blu-studio.com wrote: > >>> Using GNU Regular Expressions I need to examine an URL like those > below, > >>> checking the size key and value, I need to capture and block all URLs > >>> where 'size does not equal 10'. In other words "size=12", not > >>> acceptable. > >> > >> Regular expressions are expensive and should only be used when > >> absolutely necessary. If you are checking for a specific string, just > >> check for it with str* functions. Here's how I would check for it: > >> > >> $key = 'size'; > >> $val = 10; > >> $url = 'http://....'; > >> > >> $last = strrpos($url, $key . '='); > >> if ($last !== false && $last == strrpos($url, $key . '=' . $value)) > >> { > >> echo 'Good'; > >> } > >> else > >> { > >> echo 'Bad'; > >> } > >> > >> That block of code makes sure that 'size=' shows up in your URL and that > >> the last occurrence of 'size=' is actually 'size=10'. The last > >> occurrence is the value that will be passed to the server so that's > >> probably the only one you care about. If you want to verify that there > >> is only one occurrence use strpos(...) == strrpos(...) in addition to > >> the checks above. > >> > >> -- > >> Scott Mattocks > >> _______________________________________________ > >> New York PHP Users Group Community Talk Mailing List > >> http://lists.nyphp.org/mailman/listinfo/talk > >> > >> http://www.nyphp.org/Show-Participation > >> > >> ________________________________ > >> _______________________________________________ > >> New York PHP Users Group Community Talk Mailing List > >> http://lists.nyphp.org/mailman/listinfo/talk > >> > >> http://www.nyphp.org/Show-Participation > >> > >> _______________________________________________ > >> New York PHP Users Group Community Talk Mailing List > >> http://lists.nyphp.org/mailman/listinfo/talk > >> > >> http://www.nyphp.org/Show-Participation > >> > > _______________________________________________ > > New York PHP Users Group Community Talk Mailing List > > http://lists.nyphp.org/mailman/listinfo/talk > > > > http://www.nyphp.org/Show-Participation > > > > _______________________________________________ > > New York PHP Users Group Community Talk Mailing List > > http://lists.nyphp.org/mailman/listinfo/talk > > > > http://www.nyphp.org/Show-Participation > > > > > > -- > justin > http://justinhileman.com > _______________________________________________ > New York PHP Users Group Community Talk Mailing List > http://lists.nyphp.org/mailman/listinfo/talk > > http://www.nyphp.org/Show-Participation >
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