Function parse_dow

src/tz.cpp:887–904

// Parsing helpers

static
unsigned
parse_dow(std::istream& in)
{
    static std::string const dow_names[] =
        {"sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday"};
    auto s = get_alpha_word(in);
    tolower(s);
    auto dow = std::find_if(std::begin(dow_names), std::end(dow_names),
                 [&s](std::string const& dow)
                 {
                     return is_prefix_of(s, dow);
                 })
                  - dow_names;
    if (dow >= std::end(dow_names) - std::begin(dow_names))
        throw std::runtime_error("oops: bad dow name: " + s);
    return static_cast<unsigned>(dow);
}

static
std::chrono::seconds