signed int year = 0; // yes, Y23K problem – we gonna worry then…
std::string weekday, month, datespec, timespec, zone;
std::istringstream ss(str);
+ auto const &posix = std::locale("C.UTF-8");
+ ss.imbue(posix);
ss >> weekday;
// we only superficially check weekday, mostly to avoid accepting localized
// weekdays here and take only its length to decide which datetime format we