Reorder classes (#2591)
This commit is contained in:
Vladislav Shchapov
GitHub
parent
0b843af56b
commit
b69ae4854c
@ -804,6 +804,419 @@ template <typename Derived> struct null_chrono_spec_handler {
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FMT_CONSTEXPR void on_tz_name() { unsupported(); }
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};
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struct tm_format_checker : null_chrono_spec_handler<tm_format_checker> {
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FMT_NORETURN void unsupported() { FMT_THROW(format_error("no format")); }
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template <typename Char>
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FMT_CONSTEXPR void on_text(const Char*, const Char*) {}
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FMT_CONSTEXPR void on_year(numeric_system) {}
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FMT_CONSTEXPR void on_short_year(numeric_system) {}
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FMT_CONSTEXPR void on_offset_year() {}
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FMT_CONSTEXPR void on_century(numeric_system) {}
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FMT_CONSTEXPR void on_iso_week_based_year() {}
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FMT_CONSTEXPR void on_iso_week_based_short_year() {}
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FMT_CONSTEXPR void on_abbr_weekday() {}
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FMT_CONSTEXPR void on_full_weekday() {}
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FMT_CONSTEXPR void on_dec0_weekday(numeric_system) {}
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FMT_CONSTEXPR void on_dec1_weekday(numeric_system) {}
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FMT_CONSTEXPR void on_abbr_month() {}
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FMT_CONSTEXPR void on_full_month() {}
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FMT_CONSTEXPR void on_dec_month(numeric_system) {}
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FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system) {}
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FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system) {}
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FMT_CONSTEXPR void on_iso_week_of_year(numeric_system) {}
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FMT_CONSTEXPR void on_day_of_year() {}
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FMT_CONSTEXPR void on_day_of_month(numeric_system) {}
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FMT_CONSTEXPR void on_day_of_month_space(numeric_system) {}
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FMT_CONSTEXPR void on_24_hour(numeric_system) {}
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FMT_CONSTEXPR void on_12_hour(numeric_system) {}
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FMT_CONSTEXPR void on_minute(numeric_system) {}
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FMT_CONSTEXPR void on_second(numeric_system) {}
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FMT_CONSTEXPR void on_datetime(numeric_system) {}
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FMT_CONSTEXPR void on_loc_date(numeric_system) {}
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FMT_CONSTEXPR void on_loc_time(numeric_system) {}
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FMT_CONSTEXPR void on_us_date() {}
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FMT_CONSTEXPR void on_iso_date() {}
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FMT_CONSTEXPR void on_12_hour_time() {}
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FMT_CONSTEXPR void on_24_hour_time() {}
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FMT_CONSTEXPR void on_iso_time() {}
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FMT_CONSTEXPR void on_am_pm() {}
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FMT_CONSTEXPR void on_utc_offset() {}
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FMT_CONSTEXPR void on_tz_name() {}
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};
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inline const char* tm_wday_full_name(int wday) {
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static constexpr const char* full_name_list[] = {
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"Sunday", "Monday", "Tuesday", "Wednesday",
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"Thursday", "Friday", "Saturday"};
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return wday >= 0 && wday <= 6 ? full_name_list[wday] : "?";
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}
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inline const char* tm_wday_short_name(int wday) {
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static constexpr const char* short_name_list[] = {"Sun", "Mon", "Tue", "Wed",
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"Thu", "Fri", "Sat"};
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return wday >= 0 && wday <= 6 ? short_name_list[wday] : "???";
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}
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inline const char* tm_mon_full_name(int mon) {
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static constexpr const char* full_name_list[] = {
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"January", "February", "March", "April", "May", "June",
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"July", "August", "September", "October", "November", "December"};
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return mon >= 0 && mon <= 11 ? full_name_list[mon] : "?";
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}
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inline const char* tm_mon_short_name(int mon) {
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static constexpr const char* short_name_list[] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
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};
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return mon >= 0 && mon <= 11 ? short_name_list[mon] : "???";
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}
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template <typename OutputIt, typename Char> class tm_writer {
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private:
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static constexpr int days_per_week = 7;
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const std::locale& loc_;
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const bool is_classic_;
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OutputIt out_;
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const std::tm& tm_;
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auto tm_sec() const noexcept -> int {
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FMT_ASSERT(tm_.tm_sec >= 0 && tm_.tm_sec <= 61, "");
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return tm_.tm_sec;
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}
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auto tm_min() const noexcept -> int {
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FMT_ASSERT(tm_.tm_min >= 0 && tm_.tm_min <= 59, "");
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return tm_.tm_min;
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}
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auto tm_hour() const noexcept -> int {
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FMT_ASSERT(tm_.tm_hour >= 0 && tm_.tm_hour <= 23, "");
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return tm_.tm_hour;
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}
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auto tm_mday() const noexcept -> int {
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FMT_ASSERT(tm_.tm_mday >= 1 && tm_.tm_mday <= 31, "");
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return tm_.tm_mday;
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}
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auto tm_mon() const noexcept -> int {
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FMT_ASSERT(tm_.tm_mon >= 0 && tm_.tm_mon <= 11, "");
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return tm_.tm_mon;
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}
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auto tm_year() const noexcept -> long long { return 1900ll + tm_.tm_year; }
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auto tm_wday() const noexcept -> int {
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FMT_ASSERT(tm_.tm_wday >= 0 && tm_.tm_wday <= 6, "");
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return tm_.tm_wday;
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}
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auto tm_yday() const noexcept -> int {
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FMT_ASSERT(tm_.tm_yday >= 0 && tm_.tm_yday <= 365, "");
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return tm_.tm_yday;
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}
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auto tm_hour12() const noexcept -> int {
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const auto h = tm_hour();
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const auto z = h < 12 ? h : h - 12;
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return z == 0 ? 12 : z;
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}
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// POSIX and the C Standard are unclear or inconsistent about what %C and %y
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// do if the year is negative or exceeds 9999. Use the convention that %C
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// concatenated with %y yields the same output as %Y, and that %Y contains at
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// least 4 characters, with more only if necessary.
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auto split_year_lower(long long year) const noexcept -> int {
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auto l = year % 100;
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if (l < 0) l = -l; // l in [0, 99]
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return static_cast<int>(l);
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}
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// Algorithm:
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// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_the_week_number_from_a_month_and_day_of_the_month_or_ordinal_date
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auto iso_year_weeks(long long curr_year) const noexcept -> int {
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const auto prev_year = curr_year - 1;
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const auto curr_p =
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(curr_year + curr_year / 4 - curr_year / 100 + curr_year / 400) %
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days_per_week;
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const auto prev_p =
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(prev_year + prev_year / 4 - prev_year / 100 + prev_year / 400) %
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days_per_week;
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return 52 + ((curr_p == 4 || prev_p == 3) ? 1 : 0);
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}
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auto iso_week_num(int tm_yday, int tm_wday) const noexcept -> int {
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return (tm_yday + 11 - (tm_wday == 0 ? days_per_week : tm_wday)) /
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days_per_week;
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}
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auto tm_iso_week_year() const noexcept -> long long {
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const auto year = tm_year();
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const auto w = iso_week_num(tm_yday(), tm_wday());
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if (w < 1) return year - 1;
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if (w > iso_year_weeks(year)) return year + 1;
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return year;
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}
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auto tm_iso_week_of_year() const noexcept -> int {
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const auto year = tm_year();
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const auto w = iso_week_num(tm_yday(), tm_wday());
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if (w < 1) return iso_year_weeks(year - 1);
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if (w > iso_year_weeks(year)) return 1;
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return w;
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}
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void write1(int value) {
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*out_++ = static_cast<char>('0' + to_unsigned(value) % 10);
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}
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void write2(int value) {
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const char* d = digits2(to_unsigned(value) % 100);
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*out_++ = *d++;
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*out_++ = *d;
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}
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void write_year_extended(long long year) {
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// At least 4 characters.
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int width = 4;
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if (year < 0) {
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*out_++ = '-';
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year = 0 - year;
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--width;
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}
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uint32_or_64_or_128_t<long long> n = to_unsigned(year);
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const int num_digits = count_digits(n);
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if (width > num_digits) out_ = std::fill_n(out_, width - num_digits, '0');
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out_ = format_decimal<Char>(out_, n, num_digits).end;
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}
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void write_year(long long year) {
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if (year >= 0 && year < 10000) {
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write2(static_cast<int>(year / 100));
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write2(static_cast<int>(year % 100));
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} else {
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write_year_extended(year);
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}
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}
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void format_localized(char format, char modifier = 0) {
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out_ = write<Char>(out_, tm_, loc_, format, modifier);
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}
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public:
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explicit tm_writer(const std::locale& loc, OutputIt out, const std::tm& tm)
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: loc_(loc),
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is_classic_(loc_ == get_classic_locale()),
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out_(out),
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tm_(tm) {}
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OutputIt out() const { return out_; }
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FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
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out_ = copy_str<Char>(begin, end, out_);
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}
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void on_abbr_weekday() {
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if (is_classic_)
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out_ = write(out_, tm_wday_short_name(tm_wday()));
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else
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format_localized('a');
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}
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void on_full_weekday() {
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if (is_classic_)
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out_ = write(out_, tm_wday_full_name(tm_wday()));
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else
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format_localized('A');
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}
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void on_dec0_weekday(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('w', 'O');
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write1(tm_wday());
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}
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void on_dec1_weekday(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('u', 'O');
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auto wday = tm_wday();
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write1(wday == 0 ? days_per_week : wday);
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}
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void on_abbr_month() {
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if (is_classic_)
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out_ = write(out_, tm_mon_short_name(tm_mon()));
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else
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format_localized('b');
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}
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void on_full_month() {
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if (is_classic_)
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out_ = write(out_, tm_mon_full_name(tm_mon()));
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else
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format_localized('B');
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}
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void on_datetime(numeric_system ns) {
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if (is_classic_) {
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on_abbr_weekday();
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*out_++ = ' ';
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on_abbr_month();
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*out_++ = ' ';
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on_day_of_month_space(numeric_system::standard);
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*out_++ = ' ';
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on_iso_time();
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*out_++ = ' ';
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on_year(numeric_system::standard);
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} else {
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format_localized('c', ns == numeric_system::standard ? '\0' : 'E');
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}
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}
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void on_loc_date(numeric_system ns) {
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if (is_classic_)
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on_us_date();
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else
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format_localized('x', ns == numeric_system::standard ? '\0' : 'E');
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}
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void on_loc_time(numeric_system ns) {
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if (is_classic_)
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on_iso_time();
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else
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format_localized('X', ns == numeric_system::standard ? '\0' : 'E');
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}
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void on_us_date() {
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char buf[8];
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write_digit2_separated(buf, to_unsigned(tm_mon() + 1),
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to_unsigned(tm_mday()),
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to_unsigned(split_year_lower(tm_year())), '/');
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out_ = copy_str<Char>(std::begin(buf), std::end(buf), out_);
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}
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void on_iso_date() {
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auto year = tm_year();
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char buf[10];
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size_t offset = 0;
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if (year >= 0 && year < 10000) {
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copy2(buf, digits2(to_unsigned(year / 100)));
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} else {
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offset = 4;
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write_year_extended(year);
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year = 0;
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}
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write_digit2_separated(buf + 2, static_cast<unsigned>(year % 100),
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to_unsigned(tm_mon() + 1), to_unsigned(tm_mday()),
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'-');
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out_ = copy_str<Char>(std::begin(buf) + offset, std::end(buf), out_);
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}
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void on_utc_offset() { format_localized('z'); }
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void on_tz_name() { format_localized('Z'); }
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void on_year(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('Y', 'E');
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write_year(tm_year());
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}
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void on_short_year(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('y', 'O');
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write2(split_year_lower(tm_year()));
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}
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void on_offset_year() { format_localized('y', 'E'); }
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void on_century(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('C', 'E');
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auto year = tm_year();
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auto upper = year / 100;
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if (year >= -99 && year < 0) {
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// Zero upper on negative year.
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*out_++ = '-';
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*out_++ = '0';
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} else if (upper >= 0 && upper < 100) {
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write2(static_cast<int>(upper));
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} else {
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out_ = write<Char>(out_, upper);
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}
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}
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void on_dec_month(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('m', 'O');
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write2(tm_mon() + 1);
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}
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void on_dec0_week_of_year(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('U', 'O');
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write2((tm_yday() + days_per_week - tm_wday()) / days_per_week);
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}
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void on_dec1_week_of_year(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('W', 'O');
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auto wday = tm_wday();
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write2((tm_yday() + days_per_week -
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(wday == 0 ? (days_per_week - 1) : (wday - 1))) /
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days_per_week);
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}
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void on_iso_week_of_year(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('V', 'O');
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write2(tm_iso_week_of_year());
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}
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void on_iso_week_based_year() { write_year(tm_iso_week_year()); }
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void on_iso_week_based_short_year() {
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write2(split_year_lower(tm_iso_week_year()));
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}
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void on_day_of_year() {
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auto yday = tm_yday() + 1;
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write1(yday / 100);
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write2(yday % 100);
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}
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void on_day_of_month(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('d', 'O');
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write2(tm_mday());
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}
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void on_day_of_month_space(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('e', 'O');
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auto mday = to_unsigned(tm_mday()) % 100;
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const char* d2 = digits2(mday);
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*out_++ = mday < 10 ? ' ' : d2[0];
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*out_++ = d2[1];
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}
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void on_24_hour(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('H', 'O');
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write2(tm_hour());
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}
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void on_12_hour(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('I', 'O');
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write2(tm_hour12());
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}
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void on_minute(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('M', 'O');
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write2(tm_min());
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}
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void on_second(numeric_system ns) {
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if (ns != numeric_system::standard) return format_localized('S', 'O');
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write2(tm_sec());
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}
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void on_12_hour_time() {
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if (is_classic_) {
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char buf[8];
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write_digit2_separated(buf, to_unsigned(tm_hour12()),
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to_unsigned(tm_min()), to_unsigned(tm_sec()), ':');
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out_ = copy_str<Char>(std::begin(buf), std::end(buf), out_);
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*out_++ = ' ';
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on_am_pm();
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} else {
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format_localized('r');
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}
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}
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void on_24_hour_time() {
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write2(tm_hour());
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*out_++ = ':';
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write2(tm_min());
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}
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void on_iso_time() {
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char buf[8];
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write_digit2_separated(buf, to_unsigned(tm_hour()), to_unsigned(tm_min()),
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to_unsigned(tm_sec()), ':');
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out_ = copy_str<Char>(std::begin(buf), std::end(buf), out_);
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}
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void on_am_pm() {
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if (is_classic_) {
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*out_++ = tm_hour() < 12 ? 'A' : 'P';
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*out_++ = 'M';
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} else {
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format_localized('p');
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}
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}
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// These apply to chrono durations but not tm.
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void on_duration_value() {}
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void on_duration_unit() {}
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};
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struct chrono_format_checker : null_chrono_spec_handler<chrono_format_checker> {
|
||||
FMT_NORETURN void unsupported() { FMT_THROW(format_error("no date")); }
|
||||
|
||||
@ -1362,423 +1775,6 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
|
||||
}
|
||||
};
|
||||
|
||||
FMT_BEGIN_DETAIL_NAMESPACE
|
||||
|
||||
struct tm_format_checker : null_chrono_spec_handler<tm_format_checker> {
|
||||
FMT_NORETURN void unsupported() { FMT_THROW(format_error("no format")); }
|
||||
|
||||
template <typename Char>
|
||||
FMT_CONSTEXPR void on_text(const Char*, const Char*) {}
|
||||
FMT_CONSTEXPR void on_year(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_short_year(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_offset_year() {}
|
||||
FMT_CONSTEXPR void on_century(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_iso_week_based_year() {}
|
||||
FMT_CONSTEXPR void on_iso_week_based_short_year() {}
|
||||
FMT_CONSTEXPR void on_abbr_weekday() {}
|
||||
FMT_CONSTEXPR void on_full_weekday() {}
|
||||
FMT_CONSTEXPR void on_dec0_weekday(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_dec1_weekday(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_abbr_month() {}
|
||||
FMT_CONSTEXPR void on_full_month() {}
|
||||
FMT_CONSTEXPR void on_dec_month(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_iso_week_of_year(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_day_of_year() {}
|
||||
FMT_CONSTEXPR void on_day_of_month(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_day_of_month_space(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_24_hour(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_12_hour(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_minute(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_second(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_datetime(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_loc_date(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_loc_time(numeric_system) {}
|
||||
FMT_CONSTEXPR void on_us_date() {}
|
||||
FMT_CONSTEXPR void on_iso_date() {}
|
||||
FMT_CONSTEXPR void on_12_hour_time() {}
|
||||
FMT_CONSTEXPR void on_24_hour_time() {}
|
||||
FMT_CONSTEXPR void on_iso_time() {}
|
||||
FMT_CONSTEXPR void on_am_pm() {}
|
||||
FMT_CONSTEXPR void on_utc_offset() {}
|
||||
FMT_CONSTEXPR void on_tz_name() {}
|
||||
};
|
||||
|
||||
inline const char* tm_wday_full_name(int wday) {
|
||||
static constexpr const char* full_name_list[] = {
|
||||
"Sunday", "Monday", "Tuesday", "Wednesday",
|
||||
"Thursday", "Friday", "Saturday"};
|
||||
return wday >= 0 && wday <= 6 ? full_name_list[wday] : "?";
|
||||
}
|
||||
inline const char* tm_wday_short_name(int wday) {
|
||||
static constexpr const char* short_name_list[] = {"Sun", "Mon", "Tue", "Wed",
|
||||
"Thu", "Fri", "Sat"};
|
||||
return wday >= 0 && wday <= 6 ? short_name_list[wday] : "???";
|
||||
}
|
||||
|
||||
inline const char* tm_mon_full_name(int mon) {
|
||||
static constexpr const char* full_name_list[] = {
|
||||
"January", "February", "March", "April", "May", "June",
|
||||
"July", "August", "September", "October", "November", "December"};
|
||||
return mon >= 0 && mon <= 11 ? full_name_list[mon] : "?";
|
||||
}
|
||||
inline const char* tm_mon_short_name(int mon) {
|
||||
static constexpr const char* short_name_list[] = {
|
||||
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
|
||||
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
|
||||
};
|
||||
return mon >= 0 && mon <= 11 ? short_name_list[mon] : "???";
|
||||
}
|
||||
|
||||
template <typename OutputIt, typename Char> class tm_writer {
|
||||
private:
|
||||
static constexpr int days_per_week = 7;
|
||||
|
||||
const std::locale& loc_;
|
||||
const bool is_classic_;
|
||||
OutputIt out_;
|
||||
const std::tm& tm_;
|
||||
|
||||
auto tm_sec() const noexcept -> int {
|
||||
FMT_ASSERT(tm_.tm_sec >= 0 && tm_.tm_sec <= 61, "");
|
||||
return tm_.tm_sec;
|
||||
}
|
||||
auto tm_min() const noexcept -> int {
|
||||
FMT_ASSERT(tm_.tm_min >= 0 && tm_.tm_min <= 59, "");
|
||||
return tm_.tm_min;
|
||||
}
|
||||
auto tm_hour() const noexcept -> int {
|
||||
FMT_ASSERT(tm_.tm_hour >= 0 && tm_.tm_hour <= 23, "");
|
||||
return tm_.tm_hour;
|
||||
}
|
||||
auto tm_mday() const noexcept -> int {
|
||||
FMT_ASSERT(tm_.tm_mday >= 1 && tm_.tm_mday <= 31, "");
|
||||
return tm_.tm_mday;
|
||||
}
|
||||
auto tm_mon() const noexcept -> int {
|
||||
FMT_ASSERT(tm_.tm_mon >= 0 && tm_.tm_mon <= 11, "");
|
||||
return tm_.tm_mon;
|
||||
}
|
||||
auto tm_year() const noexcept -> long long { return 1900ll + tm_.tm_year; }
|
||||
auto tm_wday() const noexcept -> int {
|
||||
FMT_ASSERT(tm_.tm_wday >= 0 && tm_.tm_wday <= 6, "");
|
||||
return tm_.tm_wday;
|
||||
}
|
||||
auto tm_yday() const noexcept -> int {
|
||||
FMT_ASSERT(tm_.tm_yday >= 0 && tm_.tm_yday <= 365, "");
|
||||
return tm_.tm_yday;
|
||||
}
|
||||
|
||||
auto tm_hour12() const noexcept -> int {
|
||||
const auto h = tm_hour();
|
||||
const auto z = h < 12 ? h : h - 12;
|
||||
return z == 0 ? 12 : z;
|
||||
}
|
||||
|
||||
// POSIX and the C Standard are unclear or inconsistent about what %C and %y
|
||||
// do if the year is negative or exceeds 9999. Use the convention that %C
|
||||
// concatenated with %y yields the same output as %Y, and that %Y contains at
|
||||
// least 4 characters, with more only if necessary.
|
||||
auto split_year_lower(long long year) const noexcept -> int {
|
||||
auto l = year % 100;
|
||||
if (l < 0) l = -l; // l in [0, 99]
|
||||
return static_cast<int>(l);
|
||||
}
|
||||
|
||||
// Algorithm:
|
||||
// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_the_week_number_from_a_month_and_day_of_the_month_or_ordinal_date
|
||||
auto iso_year_weeks(long long curr_year) const noexcept -> int {
|
||||
const auto prev_year = curr_year - 1;
|
||||
const auto curr_p =
|
||||
(curr_year + curr_year / 4 - curr_year / 100 + curr_year / 400) %
|
||||
days_per_week;
|
||||
const auto prev_p =
|
||||
(prev_year + prev_year / 4 - prev_year / 100 + prev_year / 400) %
|
||||
days_per_week;
|
||||
return 52 + ((curr_p == 4 || prev_p == 3) ? 1 : 0);
|
||||
}
|
||||
auto iso_week_num(int tm_yday, int tm_wday) const noexcept -> int {
|
||||
return (tm_yday + 11 - (tm_wday == 0 ? days_per_week : tm_wday)) /
|
||||
days_per_week;
|
||||
}
|
||||
auto tm_iso_week_year() const noexcept -> long long {
|
||||
const auto year = tm_year();
|
||||
const auto w = iso_week_num(tm_yday(), tm_wday());
|
||||
if (w < 1) return year - 1;
|
||||
if (w > iso_year_weeks(year)) return year + 1;
|
||||
return year;
|
||||
}
|
||||
auto tm_iso_week_of_year() const noexcept -> int {
|
||||
const auto year = tm_year();
|
||||
const auto w = iso_week_num(tm_yday(), tm_wday());
|
||||
if (w < 1) return iso_year_weeks(year - 1);
|
||||
if (w > iso_year_weeks(year)) return 1;
|
||||
return w;
|
||||
}
|
||||
|
||||
void write1(int value) {
|
||||
*out_++ = static_cast<char>('0' + to_unsigned(value) % 10);
|
||||
}
|
||||
void write2(int value) {
|
||||
const char* d = digits2(to_unsigned(value) % 100);
|
||||
*out_++ = *d++;
|
||||
*out_++ = *d;
|
||||
}
|
||||
|
||||
void write_year_extended(long long year) {
|
||||
// At least 4 characters.
|
||||
int width = 4;
|
||||
if (year < 0) {
|
||||
*out_++ = '-';
|
||||
year = 0 - year;
|
||||
--width;
|
||||
}
|
||||
uint32_or_64_or_128_t<long long> n = to_unsigned(year);
|
||||
const int num_digits = count_digits(n);
|
||||
if (width > num_digits) out_ = std::fill_n(out_, width - num_digits, '0');
|
||||
out_ = format_decimal<Char>(out_, n, num_digits).end;
|
||||
}
|
||||
void write_year(long long year) {
|
||||
if (year >= 0 && year < 10000) {
|
||||
write2(static_cast<int>(year / 100));
|
||||
write2(static_cast<int>(year % 100));
|
||||
} else {
|
||||
write_year_extended(year);
|
||||
}
|
||||
}
|
||||
|
||||
void format_localized(char format, char modifier = 0) {
|
||||
out_ = write<Char>(out_, tm_, loc_, format, modifier);
|
||||
}
|
||||
|
||||
public:
|
||||
explicit tm_writer(const std::locale& loc, OutputIt out, const std::tm& tm)
|
||||
: loc_(loc),
|
||||
is_classic_(loc_ == get_classic_locale()),
|
||||
out_(out),
|
||||
tm_(tm) {}
|
||||
|
||||
OutputIt out() const { return out_; }
|
||||
|
||||
FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
|
||||
out_ = copy_str<Char>(begin, end, out_);
|
||||
}
|
||||
|
||||
void on_abbr_weekday() {
|
||||
if (is_classic_)
|
||||
out_ = write(out_, tm_wday_short_name(tm_wday()));
|
||||
else
|
||||
format_localized('a');
|
||||
}
|
||||
void on_full_weekday() {
|
||||
if (is_classic_)
|
||||
out_ = write(out_, tm_wday_full_name(tm_wday()));
|
||||
else
|
||||
format_localized('A');
|
||||
}
|
||||
void on_dec0_weekday(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('w', 'O');
|
||||
write1(tm_wday());
|
||||
}
|
||||
void on_dec1_weekday(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('u', 'O');
|
||||
auto wday = tm_wday();
|
||||
write1(wday == 0 ? days_per_week : wday);
|
||||
}
|
||||
|
||||
void on_abbr_month() {
|
||||
if (is_classic_)
|
||||
out_ = write(out_, tm_mon_short_name(tm_mon()));
|
||||
else
|
||||
format_localized('b');
|
||||
}
|
||||
void on_full_month() {
|
||||
if (is_classic_)
|
||||
out_ = write(out_, tm_mon_full_name(tm_mon()));
|
||||
else
|
||||
format_localized('B');
|
||||
}
|
||||
|
||||
void on_datetime(numeric_system ns) {
|
||||
if (is_classic_) {
|
||||
on_abbr_weekday();
|
||||
*out_++ = ' ';
|
||||
on_abbr_month();
|
||||
*out_++ = ' ';
|
||||
on_day_of_month_space(numeric_system::standard);
|
||||
*out_++ = ' ';
|
||||
on_iso_time();
|
||||
*out_++ = ' ';
|
||||
on_year(numeric_system::standard);
|
||||
} else {
|
||||
format_localized('c', ns == numeric_system::standard ? '\0' : 'E');
|
||||
}
|
||||
}
|
||||
void on_loc_date(numeric_system ns) {
|
||||
if (is_classic_)
|
||||
on_us_date();
|
||||
else
|
||||
format_localized('x', ns == numeric_system::standard ? '\0' : 'E');
|
||||
}
|
||||
void on_loc_time(numeric_system ns) {
|
||||
if (is_classic_)
|
||||
on_iso_time();
|
||||
else
|
||||
format_localized('X', ns == numeric_system::standard ? '\0' : 'E');
|
||||
}
|
||||
void on_us_date() {
|
||||
char buf[8];
|
||||
write_digit2_separated(buf, to_unsigned(tm_mon() + 1),
|
||||
to_unsigned(tm_mday()),
|
||||
to_unsigned(split_year_lower(tm_year())), '/');
|
||||
out_ = copy_str<Char>(std::begin(buf), std::end(buf), out_);
|
||||
}
|
||||
void on_iso_date() {
|
||||
auto year = tm_year();
|
||||
char buf[10];
|
||||
size_t offset = 0;
|
||||
if (year >= 0 && year < 10000) {
|
||||
copy2(buf, digits2(to_unsigned(year / 100)));
|
||||
} else {
|
||||
offset = 4;
|
||||
write_year_extended(year);
|
||||
year = 0;
|
||||
}
|
||||
write_digit2_separated(buf + 2, static_cast<unsigned>(year % 100),
|
||||
to_unsigned(tm_mon() + 1), to_unsigned(tm_mday()),
|
||||
'-');
|
||||
out_ = copy_str<Char>(std::begin(buf) + offset, std::end(buf), out_);
|
||||
}
|
||||
|
||||
void on_utc_offset() { format_localized('z'); }
|
||||
void on_tz_name() { format_localized('Z'); }
|
||||
|
||||
void on_year(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('Y', 'E');
|
||||
write_year(tm_year());
|
||||
}
|
||||
void on_short_year(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('y', 'O');
|
||||
write2(split_year_lower(tm_year()));
|
||||
}
|
||||
void on_offset_year() { format_localized('y', 'E'); }
|
||||
|
||||
void on_century(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('C', 'E');
|
||||
auto year = tm_year();
|
||||
auto upper = year / 100;
|
||||
if (year >= -99 && year < 0) {
|
||||
// Zero upper on negative year.
|
||||
*out_++ = '-';
|
||||
*out_++ = '0';
|
||||
} else if (upper >= 0 && upper < 100) {
|
||||
write2(static_cast<int>(upper));
|
||||
} else {
|
||||
out_ = write<Char>(out_, upper);
|
||||
}
|
||||
}
|
||||
|
||||
void on_dec_month(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('m', 'O');
|
||||
write2(tm_mon() + 1);
|
||||
}
|
||||
|
||||
void on_dec0_week_of_year(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('U', 'O');
|
||||
write2((tm_yday() + days_per_week - tm_wday()) / days_per_week);
|
||||
}
|
||||
void on_dec1_week_of_year(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('W', 'O');
|
||||
auto wday = tm_wday();
|
||||
write2((tm_yday() + days_per_week -
|
||||
(wday == 0 ? (days_per_week - 1) : (wday - 1))) /
|
||||
days_per_week);
|
||||
}
|
||||
void on_iso_week_of_year(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('V', 'O');
|
||||
write2(tm_iso_week_of_year());
|
||||
}
|
||||
|
||||
void on_iso_week_based_year() { write_year(tm_iso_week_year()); }
|
||||
void on_iso_week_based_short_year() {
|
||||
write2(split_year_lower(tm_iso_week_year()));
|
||||
}
|
||||
|
||||
void on_day_of_year() {
|
||||
auto yday = tm_yday() + 1;
|
||||
write1(yday / 100);
|
||||
write2(yday % 100);
|
||||
}
|
||||
void on_day_of_month(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('d', 'O');
|
||||
write2(tm_mday());
|
||||
}
|
||||
void on_day_of_month_space(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('e', 'O');
|
||||
auto mday = to_unsigned(tm_mday()) % 100;
|
||||
const char* d2 = digits2(mday);
|
||||
*out_++ = mday < 10 ? ' ' : d2[0];
|
||||
*out_++ = d2[1];
|
||||
}
|
||||
|
||||
void on_24_hour(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('H', 'O');
|
||||
write2(tm_hour());
|
||||
}
|
||||
void on_12_hour(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('I', 'O');
|
||||
write2(tm_hour12());
|
||||
}
|
||||
void on_minute(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('M', 'O');
|
||||
write2(tm_min());
|
||||
}
|
||||
void on_second(numeric_system ns) {
|
||||
if (ns != numeric_system::standard) return format_localized('S', 'O');
|
||||
write2(tm_sec());
|
||||
}
|
||||
|
||||
void on_12_hour_time() {
|
||||
if (is_classic_) {
|
||||
char buf[8];
|
||||
write_digit2_separated(buf, to_unsigned(tm_hour12()),
|
||||
to_unsigned(tm_min()), to_unsigned(tm_sec()), ':');
|
||||
out_ = copy_str<Char>(std::begin(buf), std::end(buf), out_);
|
||||
*out_++ = ' ';
|
||||
on_am_pm();
|
||||
} else {
|
||||
format_localized('r');
|
||||
}
|
||||
}
|
||||
void on_24_hour_time() {
|
||||
write2(tm_hour());
|
||||
*out_++ = ':';
|
||||
write2(tm_min());
|
||||
}
|
||||
void on_iso_time() {
|
||||
char buf[8];
|
||||
write_digit2_separated(buf, to_unsigned(tm_hour()), to_unsigned(tm_min()),
|
||||
to_unsigned(tm_sec()), ':');
|
||||
out_ = copy_str<Char>(std::begin(buf), std::end(buf), out_);
|
||||
}
|
||||
|
||||
void on_am_pm() {
|
||||
if (is_classic_) {
|
||||
*out_++ = tm_hour() < 12 ? 'A' : 'P';
|
||||
*out_++ = 'M';
|
||||
} else {
|
||||
format_localized('p');
|
||||
}
|
||||
}
|
||||
|
||||
// These apply to chrono durations but not tm.
|
||||
void on_duration_value() {}
|
||||
void on_duration_unit() {}
|
||||
};
|
||||
|
||||
FMT_END_DETAIL_NAMESPACE
|
||||
|
||||
template <typename Char, typename Duration>
|
||||
struct formatter<std::chrono::time_point<std::chrono::system_clock, Duration>,
|
||||
Char> : formatter<std::tm, Char> {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user