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$(function () {
const urlParams = new URLSearchParams(window.location.search);
const keyword = urlParams.get('kw')?.trim();
if (!keyword) return;
// 转义正则表达式特殊字符，避免安全问题
const escapedKeyword = keyword.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
// 创建不区分大小写的正则表达式（全局匹配）
const regex = new RegExp(`(${escapedKeyword})`, 'gi');
// 递归遍历并高亮文本节点
const escapeHTML = str => str.replace(/[&<>"']/g,
tag => ({
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": '''
}[tag] || tag));
function highlightTextNodes(element) {
$(element).contents().each(function () {
if (this.nodeType === Node.TEXT_NODE) {
const $this = $(this);
const text = escapeHTML($this.text());
// 使用正则替换并保留原始大小写
if (regex.test(text)) {
const replaced = text.replace(regex, '<mark>$1</mark>');
$this.replaceWith(replaced);
}
} else if (
this.nodeType === Node.ELEMENT_NODE &&
!$(this).is('script, style, noscript, textarea')
) {
highlightTextNodes(this);
}
});
}
$('section').each(function () {
highlightTextNodes(this);
});
});
$(function() {
var $codeBlocks = $('div.highlight');
$codeBlocks.each(function() {
var $copyButton = $('<button>', {
class: 'copy',
type: 'button',
text: '📋'
});
$(this).append($copyButton);
$copyButton.on('click', function() {
var code = $(this).siblings('pre').find('code').text().trim();
var $button = $(this);
navigator.clipboard.writeText(code)
.then(function() {
$button.text('✅');
})
.catch(function(err) {
$button.text('❌');
console.error('复制失败:', err);
})
.finally(function() {
setTimeout(function() {
$button.text('📋');
}, 1500);
});
});
});
});
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