blurjet

function highlightText(root, keywords) {
    // 按长度降序，避免 "test" 抢先匹配掉 "testing"
    keywords = [...keywords].sort((a, b) => b.length - a.length);

    // 转义正则特殊字符
    const escaped = keywords.map(k =>
        k.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
    );

    const regex = new RegExp(`(${escaped.join('|')})`, 'gi');