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@ -1,51 +1,21 @@
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/**
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* 根据 URL ?kw= 参数高亮页面内匹配的关键词。
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* 提取为全局函数,供 pjax.js 在页面切换后复用,避免重复实现。
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*/
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function highlightKeyword() {
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const urlParams = new URLSearchParams(window.location.search);
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const keyword = urlParams.get('kw')?.trim();
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var match = location.search.match(/[?&]kw=([^&]+)/);
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var kw = match ? $.trim(decodeURIComponent(match[1].replace(/\+/g, ' '))) : '';
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if (!kw) return;
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if (!keyword) return;
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var reg = new RegExp('(' + kw.replace(/[.*+?^${}()|[\]\\]/g, '\\$&') + ')', 'gi');
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var escapeMap = { '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' };
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// 转义正则表达式特殊字符,避免安全问题
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const escapedKeyword = keyword.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
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// 创建不区分大小写的正则表达式(全局匹配)
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const regex = new RegExp(`(${escapedKeyword})`, 'gi');
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// 递归遍历并高亮文本节点
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const escapeHTML = str => str.replace(/[&<>"']/g,
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tag => ({
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'&': '&',
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'<': '<',
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'>': '>',
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'"': '"',
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"'": '''
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}[tag] || tag));
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function highlightTextNodes(element) {
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$(element).contents().each(function () {
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if (this.nodeType === Node.TEXT_NODE) {
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const $this = $(this);
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const text = escapeHTML($this.text());
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// 使用正则替换并保留原始大小写
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if (regex.test(text)) {
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const replaced = text.replace(regex, '<mark>$1</mark>');
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$this.replaceWith(replaced);
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}
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} else if (
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this.nodeType === Node.ELEMENT_NODE &&
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!$(this).is('script, style, noscript, textarea')
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) {
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highlightTextNodes(this);
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$('section, section *').not('script, style, textarea').contents().filter(function() {
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return this.nodeType === 3;
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}).each(function() {
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var escapedText = this.nodeValue.replace(/[&<>"']/g, function(m) { return escapeMap[m]; });
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var highlighted = escapedText.replace(reg, '<mark>$1</mark>');
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if (escapedText !== highlighted) {
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$(this).replaceWith(highlighted);
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}
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});
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}
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$('section').each(function () {
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highlightTextNodes(this);
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});
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};
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}
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function initCopyButtons() {
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$('.copy').remove();
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