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Google 搜索增强：自动显示被过滤的结果，并在新标签页打开外链

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// ==UserScript==
// @name         Google Search Plus
// @namespace    http://tampermonkey.net/
// @version      1.4
// @description  Google 搜索增强：自动显示被过滤的结果，并在新标签页打开外链
// @author       ChenXu
// @license      MIT
// @include      *://www.google.com*/search*
// @include      *://scholar.google.com*/scholar*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function () {
    "use strict";

    const isSearch = (url) => /^https?:\/\/(www|scholar)\.google\.[^\/]+\/(search|scholar)/.test(url);

    const url = new URL(location.href);
    if (isSearch(location.href) && !url.searchParams.has('filter')) {
        url.searchParams.set('filter', '0');
        location.replace(url.href);
        return;
    }

    const processLinks = () => {
        document.querySelectorAll('a[href]:not([data-processed])').forEach(link => {
            const href = link.href;
            if (href && !isSearch(href) && !href.startsWith('javascript:')) {
                link.dataset.processed = 'true';
                link.target = '_blank';
                link.rel = 'noopener noreferrer';
            }
        });
    };

    const init = () => {
        processLinks();
        new MutationObserver(() => processLinks()).observe(document.body, {
            childList: true,
            subtree: true
        });
    };

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init);
    } else {
        init();
    }
})();