nsattributedstring

I want to convert NSAttributedString containing RTFD to uppercase without losing attributes of existing characters and graphics. Thanks, EDIT: @fluidsonic Is correct that the original code is incorrect. Below is an updated version in Swift, that replaces the text in each attribute range with an uppercased version of the string in that range. extension NSAttributedString { func uppercased() -> NSAttributedString { let result = NSMutableAttributedString(attributedString: self) result.enumerateAttributes(in: NSRange(location: 0, length: length), options: []) {_, range, _ in result

Edit See my answer for a full working solution: I managed to solve this myself by using a UITextView instead of a UILabel . I wrote a class that makes the UITextView behave like a UILabel but with fully accurate link detection. I have managed to style the links without problem using NSMutableAttributedString but I am unable to accurately detect which character has been clicked. I have tried all the solutions in this question (that I could convert to Swift 4 code) but with no luck. The following code works but fails to accurately detect which character has been clicked and gets the wrong

-[NSMutableAttributedString initWithHTML:documentAttributes:] seems to mangle special characters: NSString *html = @"“Hello” World"; // notice the smart quotes NSData *htmlData = [html dataUsingEncoding:NSUTF8StringEncoding]; NSMutableAttributedString *as = [[NSMutableAttributedString alloc] initWithHTML:htmlData documentAttributes:nil]; NSLog(@"%@", as); That prints “Hello†World followed by some RTF commands. In my application, I convert the attributed string to RTF and display it in an NSTextView , but the characters are corrupted there, too. According to the documentation, the default