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Google result filter by language
// ==UserScript==
// @name Google_search_filter_with_Language
// @name:zh-CN Google_search_filter_with_Language
// @name:zh-TW Google_search_filter_with_Language
// @name:ja Google_search_filter_with_Language
// @description:zh-CN Google result filter by language
// @description:zh-TW Google result filter by language
// @description:ja Google result filter by language
// @description Google result filter by language
// @namespace Google_search_filter_with_Language
// @supportURL https://github.com/zhuzemin
// @include https://www.google.*/search*
// @author zhuzemin
// @version 1.12
// @grant none
// ==/UserScript==
let searchBtn=document.querySelector("button.Tg7LZd");
let lr = document.createElement("lr");
lr.innerHTML = '<lr><a href="'+window.location.href.replace(/lr=lang_(.{1,16})/g, '').replace(/$/, '&lr=lang_en')+'">EN</a>/<a href="'+window.location.href.replace(/lr=lang_(.{1,16})/g, '').replace(/$/, '&lr=lang_ja')+'">JA</a>/<a href="'+window.location.href.replace(/lr=lang_(.{1,16})/g, '').replace(/$/, '&lr=lang_zh-TW')+'">TW</a>/<a href="'+window.location.href.replace(/lr=lang_(.{1,16})/g, '').replace(/$/, '&lr=lang_zh-CN')+'">CN</a>/<a href="'+window.location.href.replace(/lr=lang_(.{1,16})/g, '').replace(/$/, '&lr=lang_zh-CN|lang_zh-TW')+'">TW&CN</a>/<a href="'+window.location.href.replace(/lr=lang_(.{1,16})/g, '')+'">All Language</a></lr>'
searchBtn.parentNode.insertBefore(lr, searchBtn);
let allLinks=document.querySelectorAll('a.hide-focus-ring');
for(let link of allLinks){
if(/(isch)|(vid)/.test(link.href)){
searchBtn.parentNode.insertBefore(link, searchBtn);
}
}