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117 lines
4 KiB
C++
117 lines
4 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 <LibIPC/Forward.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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enum class LocalTime {
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Yes,
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No,
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};
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// %a: require short day name
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// %A: require long day name
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// %h/b: require short month name
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// %B: require long month name
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// %C: require short year number (hundreds) (ex: 19 -> 1900)
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// %d: require day number
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// %D: require month number/day number/short year number (ex: 12/31/24)
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// %e: require day number
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// %H: require hour (24h format)
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// %I: require hour (12h format)
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// %j: require defining date with day number ? (not sure)
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// %m: require set to month entred - 1
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// %M: require minutes
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// %n: require newline
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// %t: require tab
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// %r/p: require AM | PM
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// %R: require hours:minutes (ex: 13:57)
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// %S: require seconds
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// %T: require hours:minutes:seconds (ex: 13:57:34)
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// %w: require week day number
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// %y: require 2 digits year (69 < year < 99: in the 1900 else in 2000)
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// %Y: require full year
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// %z: require timezone hours:minutes or single number to represent hour and minutes
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// %x: require single number to represent hour and minutes
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// %X: require sub second precision
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// %Z: require timezone name
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// %+: ignore until next '%'
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// %%: require character '%'
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ErrorOr<String> to_string(StringView format = "%Y-%m-%d %H:%M:%S"sv, LocalTime = LocalTime::Yes) const;
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ByteString to_byte_string(StringView format = "%Y-%m-%d %H:%M:%S"sv, LocalTime = LocalTime::Yes) const;
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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}"sv,
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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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namespace IPC {
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template<>
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ErrorOr<void> encode(Encoder&, Core::DateTime const&);
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template<>
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ErrorOr<Core::DateTime> decode(Decoder&);
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}
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