bash yes or no loop for user prompt

test-1-case-1-yes_or_no_loop.sh

#!/bin/bash

## Copyright (c) 2020 mangalbhaskar. All Rights Reserved.
##__author__ = 'mangalbhaskar'
###----------------------------------------------------------

function test-1-case-1-yes_or_no_loop() {
  local LSCRIPTS=$( cd "$( dirname "${BASH_SOURCE[0]}")" && pwd )
  source ${LSCRIPTS}/yes_or_no_loop.sh

  yes_or_no_loop "Are you infected" && echo "Yes" || echo "No"
  yes_or_no_loop "Are you sure" && echo "Yes" || echo "No"
  yes_or_no_loop "Think once again, are you sure" && echo "Yes" || echo "No"
}

test-1-case-1-yes_or_no_loop

yes_or_no_loop.sh

#!/bin/bash

## Copyright (c) 2020 mangalbhaskar. All Rights Reserved.
##__author__ = 'mangalbhaskar'
###----------------------------------------------------------

function yes_or_no_loop {
  local msg
  local response

  [[ $# -eq 0 ]] && msg="Are you sure" || msg="$*"
  msg=$(echo -e "\e[1;36m${msg}? \e[1;37m[y/n]\e[1;33m>\e[0m ")
  while true; do
    read -p "${msg}" response
    case ${response} in
      [Yy]*) return 0  ;;  
      [Nn]*) return -1 ;;
      # *) _echo "Invalid input" ;;
    esac
  done
}