1. 电话号码

来源：http://www.regex100.com/zhengze/34.aspx

需要两步 1. 先把连续的数字搞出来 2. 对每个匹配成功的数字字符串进行严格判断，严格判断时使用的正则表达式：^(?:(?:\\+|00)86)?1(?:(?:3[\\d])|(?:4[5-79])|(?:5[0-35-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\\d])|(?:9[1589]))\\d{8}$

std::string sjhm(const std::string &text, const std::vector<std::string> &filters) {
    std::string nums = "[0-9]+";
    auto r = this->regex(text, nums, filters);
    auto rj = json::parse(r); // array
    if(!rj.is_array() || rj.empty()) {
        return "[]";
    }   

    json check_reses = json::array();
    std::string sj = "^(?:(?:\\+|00)86)?1(?:(?:3[\\d])|(?:4[5-79])|(?:5[0-35-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\\d])|(?:9[1589]))\\d{8}$";
    for(auto &j : rj) {
        auto sr = this->regex(j.value("word", ""), sj, filters);
        auto sj = json::parse(sr);
        if(!sj.is_array() || sj.empty()) {
            continue;
        }
        check_reses.push_back(j);
    }   

    return check_reses.dump();
}

2. 身份证

参考：https://www.cnblogs.com/estellez/p/5007601.html

和电话号码的判断一样 1. 不过第一步使用的表达式为 [0-9Xx]+，因为有些身份证里面有 x 1. 第二步严格判断的正则表达式：^[1-9]\\d{5}(?:18|19|20)\\d{2}(?:0[1-9]|10|11|12)(?:0[1-9]|[1-2]\\d|30|31)\\d{3}[\\dXx]$

3. IP 地址

来源：https://www.w3cschool.cn/notebook/notebook-jghl2tn5.html

3.1 IPV4

(((\\d{1,2})|(1\\d{2})|(2[0-4]\\d)|(25[0-5]))\\.){3}((\\d{1,2})|(1\\d{2})|(2[0-4]\\d)|(25[0-5]))

3.2 IPV6

^([\da-fA-F]{1,4}:){6}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$|^::([\da-fA-F]{1,4}:){0,4}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$|^([\da-fA-F]{1,4}:):([\da-fA-F]{1,4}:){0,3}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$|^([\da-fA-F]{1,4}:){2}:([\da-fA-F]{1,4}:){0,2}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$|^([\da-fA-F]{1,4}:){3}:([\da-fA-F]{1,4}:){0,1}((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$|^([\da-fA-F]{1,4}:){4}:((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$|^([\da-fA-F]{1,4}:){7}[\da-fA-F]{1,4}$|^:((:[\da-fA-F]{1,4}){1,6}|:)$|^[\da-fA-F]{1,4}:((:[\da-fA-F]{1,4}){1,5}|:)$|^([\da-fA-F]{1,4}:){2}((:[\da-fA-F]{1,4}){1,4}|:)$|^([\da-fA-F]{1,4}:){3}((:[\da-fA-F]{1,4}){1,3}|:)$|^([\da-fA-F]{1,4}:){4}((:[\da-fA-F]{1,4}){1,2}|:)$|^([\da-fA-F]{1,4}:){5}:([\da-fA-F]{1,4})?$|^([\da-fA-F]{1,4}:){6}:$