C++11 正则表达式按名称捕获组

cpp
#include <IOStream>
#include <RegEx>
#include <string>
int mAIn() {
    std::string input = "Hello, my name is John. I was born in 1990.";
    std::RegEx pattern(R"(.*name is (?<name>\w+).*born in (?<year>\d{4}).*)");
    std::smatch match;
    if (std::RegEx_match(input, match, pattern)) {
        std::string name = match.str("name");
        std::string year = match.str("year");
        std::cout << "Name: " << name << std::endl;</p>        std::cout << "Year of birth: " << year << std::endl;</p>    }
    return 0;
}