Qt正则表达式同时匹配多个关键词

QString keywords = "sun-jiang"; // 假设输入是 - 分隔
QStringList list = keywords.split('-', Qt::SkipEmptyParts);

// 动态构建 lookahead 正则
QString lookahead;
for (const QString& kw : list) {
   QString escaped = QRegularExpression::escape(kw.trimmed());
   lookahead += "(?=.*" + escaped + ")";
}

QString pattern = "^" + lookahead + ".*$"; // 加 .*$ 确保整个字符串被“实际匹配”，避免某些引擎返回空匹配
QRegularExpression re(pattern, QRegularExpression::CaseInsensitiveOption);

// QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
proxyModel->setFilterRegularExpression(re);