On Tue, Feb 16, 2010 at 9:55 AM, martin halter <ma...@me.com> wrote: > NSString *regex = @"(?:.*[\\s\\W0-9])*cache(?:[\\s\\W0-9].*)*";
Your regex is pathological. It's not hard to confuse the matcher with really convoluted regular expressions. Consider this: how is your pattern any different from... NSString *regex = @"cache"; Since your atoms before and after "cache" can match 0 or more times, you could greatly simplify the thing by just not matching at all! Never mind the .* inside the atoms. If you want to match the word cache that is surrounded by some sort of defined separators, I'd suggest: (^|[\s\W0-9])cache([\s\W0-9]|$) Broken down: - the start of the string, or some other selected separator - cache - some other selected separator, or the end of the string That should match cache in this instances: "cache" "cache some other stuff" "some other stuff cache" "some other cache stuff" "cache/some other stuff" "some other stuff/cache" "some other/cache/stuff" "cache0some other stuff" "some other stuff0cache" "some other1cache2stuff" But not: "some othercachestuff" Note: I'm not familiar with the particular flavor of regexes ICU uses. More used to Java and PCRE. But this is the basic idea. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
