Replacer

replace words

As of 2024-12-15. See the latest version.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Replacer
// @namespace    http://tampermonkey.net/
// @version      1.7
// @license MIT
// @description  replace words
// @author       Shuraken007
// @include https://*/*
// @include http://*/*
// ==/UserScript==

/* jshint esversion: 8 */

load_config("https://www.npoint.io/docs/5ef4bedc09296d71cf5a");

const timer = ms => new Promise(res => setTimeout(res, ms));
var replacements = null;
const observer = new MutationObserver(run_mutations);

waitForKeyElements("body", main, true);
// addEventListener("load", main);

async function main() {
   'use strict';
   var counter = 0;
   while (!replacements) {
      await timer(200);
      counter++;
      if (counter > 10) {
         throw new Error("config with replacements not loaded");
      }
   }
   console.log("config loaded!");
   if (replacements.length == 0) {
      console.log("no replacements for this site!");
      return;
   }

   observer.observe(document.body, { childList: true, subtree: true });
   replaceText(document.body);
}

async function load_config(link) {
   var restored_config_as_str = await localStorage.getItem("saved_replacement_config");
   if (restored_config_as_str) {
      build_suited_config(restored_config_as_str, null, true);
   }
   fetch(link)
      .then(response => response.text())
      .then(str => build_suited_config(str, restored_config_as_str, false))
      .catch(err => console.log(err));
}

function build_suited_config(data, restored_data = null, is_fast_load = false) {
   if (!is_fast_load && restored_data && data === restored_data) {
      return;
   }

   var data_as_json = JSON.parse(data);
   var cur_url = window.location.href;
   var new_replacements = [];
   for (const [url_key, replacements_config] of Object.entries(data_as_json)) {
      let url_token = tokenToRegex(url_key, true);
      url_token = new RegExp(url_token);
      if (!url_token.test(cur_url)) {
         continue;
      }

      for (let i = 0; i < replacements_config.length; i += 2) {
         let regex = tokenToRegex(replacements_config[i]);
         let replacement = replacements_config[i + 1];

         new_replacements.push(regex);
         new_replacements.push(replacement);
      }
   }
   replacements = new_replacements;
   if (!is_fast_load) {
      localStorage.setItem("saved_replacement_config", data);
      if (restored_data != null) {
         console.log('config updated');
         location.reload();
      }
   }
}

function run_mutations(mutations) {
   mutations.forEach(mutation => {
      if (mutation.type === "childList") {
         mutation.addedNodes.forEach(node => {
            replaceText(node);
         });
      }
   });
}

function replaceText(node) {
   switch (node.nodeType) {
      case Node.ELEMENT_NODE:
         node.childNodes.forEach(replaceText);
         break;
      case Node.TEXT_NODE: {
         let text = node.textContent;
         if (!text) { break; }
         // console.log(node.nodeType, node.nodeValue)
         let new_text = make_replacements(text);
         if (text != new_text) { node.textContent = new_text; }
         break;
      }
      case Node.DOCUMENT_NODE:
         node.childNodes.forEach(replaceText);
   }
}

function get_random(list) {
   return list[Math.floor((Math.random() * list.length))];
}

function make_replacements(text) {
   for (let i = 0; i < replacements.length; i += 2) {
      let regex = replacements[i];
      let replacement = replacements[i + 1];
      if (replacement instanceof Array) {
         replacement = get_random(replacement);
      }
      text = text.replaceAll(regex, replacement);
   }
   return text;
}

// prepareRegex by JoeSimmons
// used to take a string and ready it for use in new RegExp()
function prepareRegex(string) {
   // escape: []^&$.()?/\+{}|
   string = string.replace(/([\[\]\^\&\$\.\(\)\?\/\\\+\{\}\|])/g, '\\$1');
   // '*' -> '[^ ]*', but '\*' -> '*'
   string = string.replace(/\\?\*/g, function (fullMatch) {
      return fullMatch === '\\*' ? '*' : '[^ ]*';
   });
   return string;
}

function getRegFromString(string) {
   var a = string.split("/");
   let modifiers = a.pop();
   a.shift();
   let pattern = a.join("/");
   if (!modifiers.includes('g')) {
      modifiers += 'g';
   }
   // console.log(`pattern: ${pattern}, modifiers: ${modifiers}`)
   return new RegExp(pattern, modifiers);
}

var rIsRegexp = /^\/(.+)\/([gim]+)?$/;
function tokenToRegex(string, is_prepared = false) {
   if (string.match(rIsRegexp)) {
      // console.log(`user_regexp: ${string}`)
      return getRegFromString(string);
   }
   if (is_prepared) {
      string = prepareRegex(string);
      return new RegExp(string);
   }
   return string;
}

// https://raw.githubusercontent.com/CoeJoder/waitForKeyElements.js/refs/heads/master/waitForKeyElements.js
// fixed with async / await
function waitForKeyElements(selectorOrFunction, callback, waitOnce, interval, maxIntervals) {
   if (typeof waitOnce === "undefined") {
      waitOnce = true;
   }
   if (typeof interval === "undefined") {
      interval = 300;
   }
   if (typeof maxIntervals === "undefined") {
      maxIntervals = -1;
   }
   if (typeof waitForKeyElements.namespace === "undefined") {
      waitForKeyElements.namespace = Date.now().toString();
   }
   var targetNodes = (typeof selectorOrFunction === "function")
      ? selectorOrFunction()
      : document.querySelectorAll(selectorOrFunction);

   var targetsFound = targetNodes && targetNodes.length > 0;
   if (targetsFound) {
      targetNodes.forEach(async function (targetNode) {
         var attrAlreadyFound = `data-userscript-${waitForKeyElements.namespace}-alreadyFound`;
         var alreadyFound = targetNode.getAttribute(attrAlreadyFound) || false;
         if (!alreadyFound) {
            var cancelFound = await callback(targetNode);
            if (cancelFound) {
               targetsFound = false;
            }
            else {
               targetNode.setAttribute(attrAlreadyFound, true);
            }
         }
      });
   }

   if (maxIntervals !== 0 && !(targetsFound && waitOnce)) {
      maxIntervals -= 1;
      setTimeout(function () {
         waitForKeyElements(selectorOrFunction, callback, waitOnce, interval, maxIntervals);
      }, interval);
   }
}