On Friday 05 September 2003 10:21 pm, Christoph Haas wrote: > On Sat, Sep 06, 2003 at 02:22:00AM +1200, mdew wrote: > > Using regex "/etc/squid.adservers" I'm attempting to block any URL's > > with "penis" AND "large" in the url. Basically *penis*large* and > > *large*penis* ..I was looking at doing like so.. > > > > (/large/ && /penis/) > > (/penis/ && /large/) > > See "man 7 regex". I would suggest something like: > (large.*penis|penis.*large)
Beware of attempting this sort of thing without word boundaries. For example, there is a town in the north of England called Penistone, and it's not hard to find several URLs (eg in Google) which include the 5 letters "penis" without being the sort of thing you're trying to block: http://www.penistonereinforcements.com I didn't bother to look for a URL which had "large" somewhere in it as well, but it's not hard to imagine such a false positive existing. Maybe you're happy to block a few false positive web pages in exchange for a higher number of true positives, but it's a choice you should be aware you're making. Antony. -- The only problem with the Universe as a platform, though, is that it is currently running someone else's program. - Ken Karakotsios, author of SimLife
