Checks for superscript.

superscript-check.js

/**
 * @file
 * A JavaScript file for the theme.
 * This file finds text with ®s that are dynamically add and wraps them in <sup>
 *
 */

// JavaScript should be made compatible with libraries other than jQuery by
// wrapping it with an "anonymous closure". See:
// - https://drupal.org/node/1446420
// - http://www.adequatelygood.com/2010/3/JavaScript-Module-Pattern-In-Depth

(function ($, Drupal, window, document, undefined) {
  'use strict';

  // To understand behaviors, see https://drupal.org/node/756722#behaviors
  Drupal.behaviors.cardSuperscriptCheck = {
    attach: function (context, settings) { // jshint ignore:line

      // Wrap all ®s in superscript tags if they are not currently wrapped.
      var regexp = /[\xAE]/;
      $('body :not(script,sup)').contents().filter(function() {
          return this.nodeType === 3 && (regexp.test(this.nodeValue));
      }).replaceWith(function() {
          return this.nodeValue.replace(regexp, '<sup>$&</sup>');
      });
    }
  };


})(jQuery, Drupal, this, this.document);