Subscript and superscript text - Swift 4

Subscript and superscript text is a Swift Extension for Swift 4 which provides easy creation of a custom superscripted or subscripted text for a UILabel from a String to a NSMutableAttributedString. This extension is great if you are developing an app with scientific purposes, where you have to write equation or unit of measure.

USAGE

Using the function customText, you'll easily create a perfect custom subscript or superscript text.
SUPERSCRIPT: put the word, or phrase, you need to elevate between two braces, { and }
SUBSCRIPT: put the word, or phrase, you need to subscript between £ and $

Here's a code example

let myLabel1 = UILabel()
let myLabel2 = UILabel()
var subScriptText = "(H£2$) 0.117 kJ/mol"
var superScriptText = "−1.88·10{−6} cm{3}/mol (298 K)"
var finalSubScript : NSMutableAttributedString = subScriptText.customText()
var finalSuperScript : NSMutableAttributedString = superScriptText.customText()

myLabel1.attributedText = finalSubScript
myLabel2.attributedText = finalSuperScript

The result will be:
Subscript:

Superscript:

INSTALLATION

Drag the file inside your project and you're ready to go!