boost正则表达式

匹配

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int TestRegexMatch()
{
    try
    {
        std::string a{ "http://192.1168.1.1:65535/123" };
        boost::regex reg{ "^((http|https)://)?([\\w-]+\\.)+[\\w-]+(:([0-9]|[1-9]\\d|[1-9]\\d{2}|[1-9]\\d{3}|[1-5]\\d{4}|6[0-4]\\d{3}|65[0-4]\\d{2}|655[0-2]\\d|6553[0-5]))?(/[\\w./?%&=-]*)?$" };
        bool r = boost::regex_match(a.c_str(), reg);
        if (r)
        {
            printf("success");
        }
        else
        {
            printf("failure");
        }
    }
    catch (const std::exception& e)
    {
        printf("%s", e.what());
    }
    return 0;
}

查找

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int TestRegexSearch()
{
    try
    {
        std::string a{ "http://192.1168.1.1:65535/123" };
        boost::cmatch mat;
        boost::regex reg{ "^((http|https)://)?([\\w-]+\\.)+[\\w-]+(:([0-9]|[1-9]\\d|[1-9]\\d{2}|[1-9]\\d{3}|[1-5]\\d{4}|6[0-4]\\d{3}|65[0-4]\\d{2}|655[0-2]\\d|6553[0-5]))?(/[\\w./?%&=-]*)?$" };
        bool r = boost::regex_search(a.c_str(), mat, reg);
        if (r)
        {
            a = mat[0];
            printf("find: %s\n", a.c_str());
        }
    }
    catch (const std::exception& e)
    {
        printf("%s", e.what());
    }
    return 0;
}