Cursor move to the trailing of the masked text.

[brahim-lmr]

Hello 👋🏼

I tried to use Veil to format credit card numbers of 16 digits within a text field. I'm using the pattern of "#### #### #### ####".

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
     
      let numberMask = Veil(pattern: "#### #### #### ####")
           
      textField.text = numberMask.mask(input: cardNumber, exhaustive: false)

}

The formatting works fine, but when I tried to move the cursor in the middle of the text and delete a number, the cursor move automatically to the last number. (see the video attached)

In my opinion, the cursor should stay at the same place where the deletion happened.

Thank you.

mask_issue.mov