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/**
 * 检查字符串中是否包含姓名拼音
 * @param {string} inputStr 要检查的字符串
 * @param {string} namePinyin 姓名的拼音（可以包含空格分隔）
 * @param {boolean} countOccurrences 是否返回出现次数（可选）
 * @returns {string|number} 默认返回"出现"或"不出现"，如果countOccurrences为true则返回次数
 */
function checkNamePinyin(inputStr, namePinyin, countOccurrences = false) {
    // 处理拼音字符串：去除多余空格，转换为小写，并处理可能的变体
    const processedPinyin = namePinyin.trim().toLowerCase().replace(/\s+/g, '\\s*');

    // 创建正则表达式，考虑拼音可能被其他字符包围
    const regex = new RegExp(`\\b${processedPinyin}\\b`, 'gi');

    // 查找匹配
    const matches = inputStr.match(regex);

    if (countOccurrences) {
        // 返回出现次数
        return matches ? matches.length : 0;
    } else {
        // 返回是否出现
        return matches ? "出现" : "不出现";
    }
}

// 使用示例
const text = "张三和李四去吃饭，zhangsan 点了 pizza，lisi 要了面条。ZhangSan 最后付了钱。";
const name = "zhang san";

// 基本用法
console.log(checkNamePinyin(text, name)); // 输出: 出现

// 获取出现次数
console.log(checkNamePinyin(text, name, true)); // 输出: 2
// 测试用例
const testCases = [
    { text: "wanglei是我的朋友", name: "wang lei", expected: "出现", count: 1 },
    { text: "张三和李四", name: "zhang san", expected: "不出现", count: 0 },
    { text: "WANGLei 今天很开心", name: "wang lei", expected: "出现", count: 1 },
    { text: "王磊和王乐", name: "wang le", expected: "不出现", count: 0 },
    { text: "zhang san,zhangsan,zhang-san", name: "zhang san", expected: "出现", count: 3 }
];

testCases.forEach((test, index) => {
    console.log(`测试用例 ${index + 1}:`);
    console.log(`检查结果: ${checkNamePinyin(test.text, test.name)} (预期: ${test.expected})`);
    console.log(`出现次数: ${checkNamePinyin(test.text, test.name, true)} (预期: ${test.count})`);
    console.log("-------------------");
});