如何将UTF-8字符添加到NSString？

Question

I need to make chemistry formulas (SO4^2-), and the easiest way to make subscripts and superscripts seems to be adding UTF-8 characters, since KCTSuperscriptAttributeName: property of NSAttributedString doesn't work.

Is it possible for me to make an nsstring with normal characters and utf-8 characters?

Thanks

Answer 1

Justin's answer is good but I think what you might really be looking for is NSAttributedString (documentation linked for you) or NSMutableAttributedString , where you can add superscripts, subscripts, and other character styles that NSString by itself can't handle.

Take a look at other NSAttributedString questions here or via Google, like this potentially related question or this one .

Hope this helps you out!

Answer 2

According to NSString Reference "NSString is implemented to represent an array of Unicode characters, in other words, a text string."

It would be convenient to write as below: NSString* myStr = @"Any Unicode Character You Want";

Just make sure that your default text encoding is unicode.

Answer 3

yes. i assume you know the normal approach to make an NSString - here's one method to create an NSString from a utf8 string: -[NSString initWithUTF8String:] .