HyperlinkLabel.swift

private func preparedTextStorage() -> NSTextStorage? {
  guard let attributedText = attributedText, attributedText.length > 0 else { return nil }
        
  // Creates and configures a text storage which matches with the UILabel's configuration.
  let layoutManager = NSLayoutManager()
  let textContainer = NSTextContainer(size: bounds.size)
  textContainer.lineFragmentPadding = 0
  let textStorage = NSTextStorage(string: "")
  layoutManager.addTextContainer(textContainer)
  textStorage.addLayoutManager(layoutManager)
        
  textContainer.lineBreakMode = lineBreakMode
  textContainer.size = textRect(forBounds: bounds, limitedToNumberOfLines: numberOfLines).size
  textStorage.setAttributedString(attributedText)
        
  return textStorage
}