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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ByteString.h>
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#include <AK/StringView.h>
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#include <time.h>
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namespace Core {
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// Represents a time in local time.
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class DateTime {
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public:
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time_t timestamp() const { return m_timestamp; }
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unsigned year() const { return m_year; }
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unsigned month() const { return m_month; }
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unsigned day() const { return m_day; }
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unsigned hour() const { return m_hour; }
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unsigned minute() const { return m_minute; }
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unsigned second() const { return m_second; }
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unsigned weekday() const;
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unsigned days_in_month() const;
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unsigned day_of_year() const;
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bool is_leap_year() const;
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void set_time(int year, int month = 1, int day = 1, int hour = 0, int minute = 0, int second = 0);
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void set_time_only(int hour, int minute, Optional<int> second = {});
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void set_date(Core::DateTime const& other);
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static DateTime create(int year, int month = 1, int day = 1, int hour = 0, int minute = 0, int second = 0);
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static DateTime now();
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static DateTime from_timestamp(time_t);
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static Optional<DateTime> parse(StringView format, StringView string);
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bool operator<(DateTime const& other) const { return m_timestamp < other.m_timestamp; }
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bool operator>(DateTime const& other) const { return m_timestamp > other.m_timestamp; }
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bool operator<=(DateTime const& other) const { return m_timestamp <= other.m_timestamp; }
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bool operator>=(DateTime const& other) const { return m_timestamp >= other.m_timestamp; }
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bool operator==(DateTime const& other) const { return m_timestamp == other.m_timestamp; }
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private:
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time_t m_timestamp { 0 };
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int m_year { 0 };
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int m_month { 0 };
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int m_day { 0 };
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int m_hour { 0 };
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int m_minute { 0 };
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int m_second { 0 };
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};
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}
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namespace AK {
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template<>
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struct Formatter<Core::DateTime> : StandardFormatter {
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ErrorOr<void> format(FormatBuilder& builder, Core::DateTime const& value)
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{
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// Can't use DateTime::to_string() here: It doesn't propagate allocation failure.
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return builder.builder().try_appendff("{:04d}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}",
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value.year(), value.month(), value.day(),
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value.hour(), value.minute(), value.second());
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}
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};
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}
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