extension UILabel {
    
    func characterIndex(for point: CGPoint) -> Int {
        let textStorage = NSTextStorage(attributedString: attributedText!)
        let layoutManager = NSLayoutManager()
        textStorage.addLayoutManager(layoutManager)
        let textContainer = NSTextContainer(size: bounds.size)
        textContainer.lineFragmentPadding = 0
        textContainer.maximumNumberOfLines = numberOfLines
        textContainer.lineBreakMode = lineBreakMode
        layoutManager.addTextContainer(textContainer)
        return layoutManager.characterIndex(for: point, in: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
    }
}