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Replace Text On Webpages

Replaces text on websites. Now supports wildcards in search queries. Won't replace text in certain tags like links and code blocks

  1. // ==UserScript==
  2. // @name           Replace Text On Webpages
  3. // @namespace      https://userscripts-mirror.org/users/23652
  4. // @description    Replaces text on websites. Now supports wildcards in search queries. Won't replace text in certain tags like links and code blocks
  5. // @include        http://*
  6. // @include        https://*
  7. // @include        file://*
  8. // @exclude        https://userscripts-mirror.org/scripts/review/*
  9. // @exclude        https://userscripts-mirror.org/scripts/edit/*
  10. // @exclude        https://userscripts-mirror.org/scripts/edit_src/*
  11. // @exclude        https://userscripts-mirror.org/scripts/review/*
  12. // @exclude        https://userscripts-mirror.org/scripts/edit/*
  13. // @exclude        https://userscripts-mirror.org/scripts/edit_src/*
  14. // @copyright      JoeSimmons
  15. // @version        1.1.0
  16. // @license        http://creativecommons.org/licenses/by-nc-nd/3.0/us/
  17. // ==/UserScript==
  18. (function () {
  19.     'use strict';
  20.  
  21.  
  22.     /*
  23.         NOTE: 
  24.             You can use \\* to match actual asterisks instead of using it as a wildcard!
  25.             The examples below show a wildcard in use and a regular asterisk replacement.
  26.     */
  27.  
  28.     var words = {
  29.     ///////////////////////////////////////////////////////
  30.  
  31.  
  32.         // Syntax: 'Search word' : 'Replace word',
  33.         'promotes' : 'commercializes',
  34.         'oppress' : 'feelings hurt',
  35.  
  36.  
  37.     ///////////////////////////////////////////////////////
  38.     '':''};
  39.  
  40.  
  41.  
  42.  
  43.  
  44.  
  45.  
  46.  
  47.  
  48.  
  49.  
  50.     //////////////////////////////////////////////////////////////////////////////
  51.     // This is where the real code is
  52.     // Don't edit below this
  53.     //////////////////////////////////////////////////////////////////////////////
  54.  
  55.     var regexs = [], replacements = [],
  56.         tagsWhitelist = ['PRE', 'BLOCKQUOTE', 'CODE', 'INPUT', 'BUTTON', 'TEXTAREA'],
  57.         rIsRegexp = /^\/(.+)\/([gim]+)?$/,
  58.         word, text, texts, i, userRegexp;
  59.  
  60.     // prepareRegex by JoeSimmons
  61.     // used to take a string and ready it for use in new RegExp()
  62.     function prepareRegex(string) {
  63.         return string.replace(/([\[\]\^\&\$\.\(\)\?\/\\\+\{\}\|])/g, '\\$1');
  64.     }
  65.  
  66.     // function to decide whether a parent tag will have its text replaced or not
  67.     function isTagOk(tag) {
  68.         return tagsWhitelist.indexOf(tag) === -1;
  69.     }
  70.  
  71.     delete words['']; // so the user can add each entry ending with a comma,
  72.                       // I put an extra empty key/value pair in the object.
  73.                       // so we need to remove it before continuing
  74.  
  75.     // convert the 'words' JSON object to an Array
  76.     for (word in words) {
  77.         if ( typeof word === 'string' && words.hasOwnProperty(word) ) {
  78.             userRegexp = word.match(rIsRegexp);
  79.  
  80.             // add the search/needle/query
  81.             if (userRegexp) {
  82.                 regexs.push(
  83.                     new RegExp(userRegexp[1], 'g')
  84.                 );
  85.             } else {
  86.                 regexs.push(
  87.                     new RegExp(prepareRegex(word).replace(/\\?\*/g, function (fullMatch) {
  88.                         return fullMatch === '\\*' ? '*' : '[^ ]*';
  89.                     }), 'g')
  90.                 );
  91.             }
  92.  
  93.             // add the replacement
  94.             replacements.push( words[word] );
  95.         }
  96.     }
  97.  
  98.     // do the replacement
  99.     texts = document.evaluate('//body//text()[ normalize-space(.) != "" ]', document, null, 6, null);
  100.     for (i = 0; text = texts.snapshotItem(i); i += 1) {
  101.         if ( isTagOk(text.parentNode.tagName) ) {
  102.             regexs.forEach(function (value, index) {
  103.                 text.data = text.data.replace( value, replacements[index] );
  104.             });
  105.         }
  106.     }
  107.  
  108. }());