On Thu, Feb 5, 2009 at 4:16 PM, Shawn Erickson <[email protected]> wrote: > On Thu, Feb 5, 2009 at 3:39 PM, harry greenmonster > <[email protected]> wrote: > >> 'inputString' is a 5mb text file, > > Since inputString is large you really should avoid causing it to be > copied over and over again which -[NSString > stringByReplacingCharactersInRange:withString:] is doing. You should > instead use a mutable string and -[NSMutableString > replaceCharactersInRange:withString:]. > > NSMutableString* tmpString = [[inputString mutableCopy] autorelease]; > while([tmpString isMatchedByRegex:regexString]) { > range = [tmpString rangeOfRegex:regexString]; > [tmpString replaceCharactersInRange:range withString:@""]; > }
...better yet use -[NSMutableString deleteCharactersInRange:] given you are replacing with an empty string. -Shawn _______________________________________________ Cocoa-dev mailing list ([email protected]) 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 [email protected]
