Thanks Esteban and Wim, Indeed, using javascript or jQuery can also be an option.
What actually speeds things up significantly is to revert back to NSString and use NSRegularExpression. I now needs seven seconds on iPad3 to handle >600 replacement actions. This is, in itself a VERY long time, but since it is handled by an async task and we notify the user that for large law documents this action may take a few seconds, the UX should be acceptable, hopefully (up to test group to decide). Additionally, I can show a progress bar to give visual feedback. Moreover, less than 5% of the laws included in the app are that large. Most laws are handled and updated within two seconds. Thanks again for thinking with me, I hugely appreciate it. Best regards, Diederik Op Aug 22, 2013, om 1:57 AM heeft Wim Lewis <w...@omnigroup.com> het volgende geschreven: > > On 21 Aug 2013, at 4:44 PM, Diederik Meijer | Ten Horses wrote: >> The web service returns the list lightning fast, but in order to get the >> count number added to each of the >300 articles html <h4> header, I am >> looping through the list and call NSString's >> stringByReplacingOccurancesOfString:withString: on each item. >> >> There must be a more efficient way to update the html string loaded from the >> local file, obviously doing more than 300 of these replace actions is slow >> and inefficient. > > The -stringByReplacing... method has to copy the entire string each time you > do a replacement. You might be able to get a significant speedup making a > mutable copy of the original string, calling > -replaceOccurrencesOfString:withString: repeatedly, and (possibly) calling > -copy to make a final immutable copy. > > Depending on what you're doing, though, it might make more sense to load the > original string into the WebView and manipulate the WebView's DOM to update > all of the counts and things. > > > > _______________________________________________ > > 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: > https://lists.apple.com/mailman/options/cocoa-dev/diederik%40tenhorses.com > > This email sent to diede...@tenhorses.com _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
