ladybird/Libraries/LibUnicode/DateTimeFormat.h

125 lines
3.1 KiB
C++

/*
* Copyright (c) 2021-2024, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <AK/String.h>
#include <AK/StringView.h>
#include <AK/Time.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <LibUnicode/Forward.h>
namespace Unicode {
enum class DateTimeStyle {
Full,
Long,
Medium,
Short,
};
DateTimeStyle date_time_style_from_string(StringView);
StringView date_time_style_to_string(DateTimeStyle);
enum class Weekday {
Sunday,
Monday,
Tuesday,
Wednesday,
Thursday,
Friday,
Saturday,
};
enum class HourCycle {
H11,
H12,
H23,
H24,
};
HourCycle hour_cycle_from_string(StringView hour_cycle);
StringView hour_cycle_to_string(HourCycle hour_cycle);
Optional<HourCycle> default_hour_cycle(StringView locale);
enum class CalendarPatternStyle {
Narrow,
Short,
Long,
Numeric,
TwoDigit,
ShortOffset,
LongOffset,
ShortGeneric,
LongGeneric,
};
CalendarPatternStyle calendar_pattern_style_from_string(StringView style);
StringView calendar_pattern_style_to_string(CalendarPatternStyle style);
struct CalendarPattern {
static CalendarPattern create_from_pattern(StringView);
String to_pattern() const;
Optional<HourCycle> hour_cycle;
Optional<bool> hour12;
// https://unicode.org/reports/tr35/tr35-dates.html#Calendar_Fields
Optional<CalendarPatternStyle> era;
Optional<CalendarPatternStyle> year;
Optional<CalendarPatternStyle> month;
Optional<CalendarPatternStyle> weekday;
Optional<CalendarPatternStyle> day;
Optional<CalendarPatternStyle> day_period;
Optional<CalendarPatternStyle> hour;
Optional<CalendarPatternStyle> minute;
Optional<CalendarPatternStyle> second;
Optional<u8> fractional_second_digits;
Optional<CalendarPatternStyle> time_zone_name;
};
class DateTimeFormat {
public:
static NonnullOwnPtr<DateTimeFormat> create_for_date_and_time_style(
StringView locale,
StringView time_zone_identifier,
Optional<HourCycle> const& hour_cycle,
Optional<bool> const& hour12,
Optional<DateTimeStyle> const& date_style,
Optional<DateTimeStyle> const& time_style);
static NonnullOwnPtr<DateTimeFormat> create_for_pattern_options(
StringView locale,
StringView time_zone_identifier,
CalendarPattern const&);
virtual ~DateTimeFormat() = default;
struct Partition {
StringView type;
String value;
StringView source;
};
virtual CalendarPattern const& chosen_pattern() const = 0;
virtual String format(double) const = 0;
virtual Vector<Partition> format_to_parts(double) const = 0;
virtual String format_range(double, double) const = 0;
virtual Vector<Partition> format_range_to_parts(double, double) const = 0;
protected:
DateTimeFormat() = default;
};
struct WeekInfo {
u8 minimal_days_in_first_week { 1 };
Optional<Weekday> first_day_of_week;
Vector<Weekday> weekend_days;
};
WeekInfo week_info_of_locale(StringView locale);
}