Question

I have the following:

modifiedTitle = @"Léon";
modifiedTitle = [modifiedTitle stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"%@", modifiedTitle);

Converted, it now shows as L%C3%A9on.

When I run the following it doesn’t convert it back:

NSMutableString *searchText = [NSMutableString stringWithString:modifiedTitle];
[searchText stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"%@", searchText);

It still shows as L%C3%A9on.

Anyone know why?

Answer 1

Because stringByReplacingPercentEscapesUsingEncoding: returns a new string. Try this:

NSMutableString *searchText = [NSMutableString stringWithString:modifiedTitle];
NSString *newText = [searchText stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"%@", newText);