Can anyone help me with the seemingly simple task of creating a relative NSURL for a filesystem object? The catch here (sorry!) is that I really do need backward compatibility to 10.7, which rules out fileURLWithFileSystemRepresentation:isDirectory:relativeToURL: (which I suspect is the “right” way of doing this).
My attempt like: [NSURL URLWithString:[path stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding] relativeToURL:relativeTo]; This had been working ok for some time, but I have just found it to be broken for filenames containing unusual characters. In particular, it fails when given a filename containing a “smart quote” (not easily created directly with the keyboard, but auto-generated as part of a time machine backup, based on the machine name). Although I do not recall why I used stringByAddingPercentEscapesUsingEncoding, I think it must have been because it failed on some other filename pattern if I did not do that. String encodings is something I know basically nothing about, I am afraid. I am speculating that what is happening is that the fancy apostrophe is not ASCII and so my code does not work for that filename. I can change the encoding to NSUnicodeStringEncoding, and things seem ok, but I don’t know whether that will now definitely work for all filenames, or whether I have just stored up an even more obscure problem for the future. So, finally getting to two actual questions: 1. Will unicode encoding give me a robust solution here? 2. Is there a differnet, better way (pre-10.9) I should be using to create a relative URL? Thanks for any advice Jonny. _______________________________________________ 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
