MF regex

#include <cassert>
#include <filesystem>
#include <fstream>
#include <iostream>
#include <regex>
#include <sstream>
#include <string>
#include <vector>

using namespace std;
using filesystem::path;

path operator""_p(const char* data, std::size_t sz) {
    return path(data, data + sz);
}


int main() {

    static regex inc_path(R"/(\s*#\s*include\s*<([^>]*)>\s*)/");
    smatch m;

    string line = "#include <std1.h>"s;
    if (regex_match(line, m, inc_path)) {
        path f_name = string(m[1]);
    }
}