/**
   * @fileoverview XML character escaper
   * @author George Chung
   */
  "use strict";
  
  //------------------------------------------------------------------------------
  // Public Interface
  //------------------------------------------------------------------------------
  
  /**
   * Returns the escaped value for a character
   * @param {string} s string to examine
   * @returns {string} severity level
   * @private
   */
  module.exports = function(s) {
      return (`${s}`).replace(/[<>&"'\x00-\x1F\x7F\u0080-\uFFFF]/g, c => { // eslint-disable-line no-control-regex
          switch (c) {
              case "<":
                  return "&lt;";
              case ">":
                  return "&gt;";
              case "&":
                  return "&amp;";
              case "\"":
                  return "&quot;";
              case "'":
                  return "&apos;";
              default:
                  return `&#${c.charCodeAt(0)};`;
          }
      });
  };