/home/a220/proj/radnelac/src/display/prelude.rs

Source
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.

use crate::display::private::Case;
use crate::display::private::Content;
use crate::display::private::DisplayItem;
use crate::display::private::DisplayOptions;
use crate::display::private::Item;
use crate::display::private::NumericContent;
use crate::display::private::Sign;
use crate::display::private::TextContent;
pub use crate::display::text::prelude::Language;

const O_LITERAL: DisplayOptions = DisplayOptions {
    numerals: None,
    width: None,
    align: None,
    padding: None,
    case: None,
    sign: Sign::OnlyNegative,
};

const O_YEAR_IN_ERA: DisplayOptions = DisplayOptions {
    numerals: None,
    width: None,
    align: None,
    padding: None,
    case: None,
    sign: Sign::Never,
};

const O_N1: DisplayOptions = DisplayOptions {
    numerals: None,
    width: Some(1),
    align: None,
    padding: None,
    case: Some(Case::Upper),
    sign: Sign::Never,
};

const O_N2: DisplayOptions = DisplayOptions {
    numerals: None,
    width: Some(2),
    align: None,
    padding: Some('0'),
    case: Some(Case::Upper),
    sign: Sign::Never,
};

const O_N3: DisplayOptions = DisplayOptions {
    numerals: None,
    width: Some(3),
    align: None,
    padding: None,
    case: Some(Case::Upper),
    sign: Sign::Never,
};

macro_rules! NumericDateItems {
    ($name: ident, $sep: literal, $prefix: ident, $n_prefix: literal, $stem: ident, $n_stem: literal) => {
        const $name: [Item<'_>; 3] = [
            Item::new(
                Content::Numeric(NumericContent::$prefix),
                DisplayOptions {
                    numerals: None,
                    width: Some($n_prefix),
                    align: None,
                    padding: Some('0'),
                    case: None,
                    sign: Sign::OnlyNegative,
                },
            ),
            Item::new(Content::Literal($sep), O_LITERAL),
            Item::new(
                Content::Numeric(NumericContent::$stem),
                DisplayOptions {
                    numerals: None,
                    width: Some($n_stem),
                    align: None,
                    padding: Some('0'),
                    case: None,
                    sign: Sign::OnlyNegative,
                },
            ),
        ];
    };
    ($name: ident, $sep: literal, $prefix: ident, $n_prefix: literal, $stem: ident, $n_stem: literal, $suffix: ident, $n_suffix: literal) => {
        const $name: [Item<'_>; 5] = [
            Item::new(
                Content::Numeric(NumericContent::$prefix),
                DisplayOptions {
                    numerals: None,
                    width: Some($n_prefix),
                    align: None,
                    padding: Some('0'),
                    case: None,
                    sign: Sign::OnlyNegative,
                },
            ),
            Item::new(Content::Literal($sep), O_LITERAL),
            Item::new(
                Content::Numeric(NumericContent::$stem),
                DisplayOptions {
                    numerals: None,
                    width: Some($n_stem),
                    align: None,
                    padding: Some('0'),
                    case: None,
                    sign: Sign::OnlyNegative,
                },
            ),
            Item::new(Content::Literal($sep), O_LITERAL),
            Item::new(
                Content::Numeric(NumericContent::$suffix),
                DisplayOptions {
                    numerals: None,
                    width: Some($n_suffix),
                    align: None,
                    padding: Some('0'),
                    case: None,
                    sign: Sign::OnlyNegative,
                },
            ),
        ];
    };
}

const I_HHMM_COLON_AMPM: [Item<'_>; 5] = [
    Item::new(
        Content::Numeric(NumericContent::Hour1to12),
        DisplayOptions {
            numerals: None,
            width: Some(2),
            align: None,
            padding: Some('0'),
            case: None,
            sign: Sign::OnlyNegative,
        },
    ),
    Item::new(Content::Literal(":"), O_LITERAL),
    Item::new(
        Content::Numeric(NumericContent::Minute),
        DisplayOptions {
            numerals: None,
            width: Some(2),
            align: None,
            padding: Some('0'),
            case: None,
            sign: Sign::OnlyNegative,
        },
    ),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::HalfDayAbbrev), O_LITERAL),
];

NumericDateItems!(I_HHMMSS_COLON, ":", Hour0to23, 2, Minute, 2, Second, 2);
NumericDateItems!(I_YYYYMMDD_DASH, "-", Year, 4, Month, 2, DayOfMonth, 2);
NumericDateItems!(I_YYYYYMMDD_DASH, "-", Year, 5, Month, 2, DayOfMonth, 2);
NumericDateItems!(I_YYYYMMDD_SLASH, "/", Year, 4, Month, 2, DayOfMonth, 2);
NumericDateItems!(I_DDMMYYYY_SLASH, "/", DayOfMonth, 2, Month, 2, Year, 4);
NumericDateItems!(I_DDMMYYYY_DOT, ".", DayOfMonth, 2, Month, 2, Year, 4);
NumericDateItems!(I_MMDDYYYY_SLASH, "/", Month, 2, DayOfMonth, 2, Year, 4);
NumericDateItems!(I_YYYYOOO_DASH, "-", Year, 4, DayOfYear, 3);
NumericDateItems!(I_YYYYYOOO_DASH, "-", Year, 5, DayOfYear, 3);

const I_LONG_DATE: [Item<'_>; 9] = [
    Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::DayOfMonth), O_LITERAL),
    Item::new(Content::Literal(", "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::EraName), O_LITERAL),
];

const I_LONG_DAY_OF_MONTH: [Item<'_>; 9] = [
    Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::DayOfMonthName), O_LITERAL),
    Item::new(Content::Literal(", "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::EraName), O_LITERAL),
];

const I_LONG_COMPL: [Item<'_>; 5] = [
    Item::new(Content::Text(TextContent::ComplementaryDayName), O_LITERAL),
    Item::new(Content::Literal(", "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::EraName), O_LITERAL),
];

const I_LONG_DATE_ERA_ABBR: [Item<'_>; 9] = [
    Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::DayOfMonth), O_LITERAL),
    Item::new(Content::Literal(", "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::EraAbbreviation), O_LITERAL),
];

const I_LONG_DAY_OF_MONTH_ERA_ABBR: [Item<'_>; 9] = [
    Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::DayOfMonthName), O_LITERAL),
    Item::new(Content::Literal(", "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::EraAbbreviation), O_LITERAL),
];

const I_LONG_COMPL_ERA_ABBR: [Item<'_>; 5] = [
    Item::new(Content::Text(TextContent::ComplementaryDayName), O_LITERAL),
    Item::new(Content::Literal(", "), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
    Item::new(Content::Literal(" "), O_LITERAL),
    Item::new(Content::Text(TextContent::EraAbbreviation), O_LITERAL),
];

const I_YEAR_WEEK_DAY: [Item<'_>; 5] = [
    Item::new(Content::Numeric(NumericContent::Year), O_LITERAL),
    Item::new(Content::Literal("-W"), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::WeekOfYear), O_N2),
    Item::new(Content::Literal("-"), O_LITERAL),
    Item::new(Content::Numeric(NumericContent::DayOfWeek), O_N1),
];

const I_YEAR_MDD: [Item<'_>; 4] = [
    Item::new(Content::Numeric(NumericContent::Year), O_LITERAL),
    Item::new(Content::Literal("-"), O_LITERAL),
    Item::new(Content::Text(TextContent::MonthName), O_N1),
    Item::new(Content::Numeric(NumericContent::DayOfMonth), O_N2),
];

const I_YEAR_COMPL: [Item<'_>; 3] = [
    Item::new(Content::Numeric(NumericContent::Year), O_LITERAL),
    Item::new(Content::Literal("-"), O_LITERAL),
    Item::new(Content::Text(TextContent::ComplementaryDayName), O_N3),
];

const I_COMPL_ONLY: [Item<'_>; 1] = [Item::new(
    Content::Text(TextContent::ComplementaryDayName),
    O_LITERAL,
)];

const I_WEEKDAY_NAME_ONLY: [Item<'_>; 1] = [Item::new(
    Content::Text(TextContent::DayOfWeekName),
    O_LITERAL,
)];

const I_EPOCH_SECONDS_ONLY: [Item<'_>; 1] = [Item::new(
    Content::Numeric(NumericContent::SecondsSinceEpoch),
    O_LITERAL,
)];

const I_EPOCH_DAYS_ONLY: [Item<'_>; 1] = [Item::new(
    Content::Numeric(NumericContent::DaysSinceEpoch),
    O_LITERAL,
)];

/// Represents a date format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
#[derive(Debug, PartialEq, Clone, Copy)]
pub struct PresetFormat<'a>(&'a [Item<'a>]);

/// HH:MM AM/PM time format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const HHMM_COLON_AMPM: PresetFormat<'static> = PresetFormat::<'static>(&I_HHMM_COLON_AMPM);
/// HH:MM:SS time format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const HHMMSS_COLON: PresetFormat<'static> = PresetFormat::<'static>(&I_HHMMSS_COLON);
/// YYYY-MM-DD numeric date format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YYYYMMDD_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYMMDD_DASH);
/// YYYYY-MM-DD numeric date format
///
/// This is intended for the Holocene Calendar.
///
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YYYYYMMDD_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYYMMDD_DASH);
/// YYYY/MM/DD numeric date format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YYYYMMDD_SLASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYMMDD_SLASH);
/// DD/MM/YYYY numeric date format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const DDMMYYYY_SLASH: PresetFormat<'static> = PresetFormat::<'static>(&I_DDMMYYYY_SLASH);
/// DD.MM.YYYY numeric date format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const DDMMYYYY_DOT: PresetFormat<'static> = PresetFormat::<'static>(&I_DDMMYYYY_DOT);
/// MM/DD/YYYY numeric date format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const MMDDYYYY_SLASH: PresetFormat<'static> = PresetFormat::<'static>(&I_MMDDYYYY_SLASH);
/// YYYY-OOO numeric date format, where OOO is day of year
///
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YYYYOOO_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYOOO_DASH);
/// YYYY-OOO numeric date format, where OOO is day of year
///
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YYYYYOOO_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYYOOO_DASH);
/// Calendar-specific long date format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const LONG_DATE: PresetFormat<'static> = PresetFormat::<'static>(&I_LONG_DATE);
/// Calendar-specific long date format with day of month name
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const LONG_DAY_OF_MONTH: PresetFormat<'static> = PresetFormat::<'static>(&I_LONG_DAY_OF_MONTH);
/// Calendar-specific long complementary day format
///
/// This is intended for calendars with complementary days.
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const LONG_COMPL: PresetFormat<'static> = PresetFormat::<'static>(&I_LONG_COMPL);
/// Calendar-specific long date format, with abbreviated era
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const LONG_DATE_ERA_ABBR: PresetFormat<'static> =
    PresetFormat::<'static>(&I_LONG_DATE_ERA_ABBR);
/// Calendar-specific long date format with day of month name and abbreviated era
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const LONG_DAY_OF_MONTH_ERA_ABBR: PresetFormat<'static> =
    PresetFormat::<'static>(&I_LONG_DAY_OF_MONTH_ERA_ABBR);
/// Calendar-specific long complementary day format, with abbreviated era
///
/// This is intended for calendars with complementary days.
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const LONG_COMPL_ERA_ABBR: PresetFormat<'static> =
    PresetFormat::<'static>(&I_LONG_COMPL_ERA_ABBR);
/// YYYY-Www-DD alphanumeric date format
///
/// This is inteded for the ISO calendar.
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YEAR_WEEK_DAY: PresetFormat<'static> = PresetFormat::<'static>(&I_YEAR_WEEK_DAY);
/// Y-mDD alphanumeric date format, where Y has variable length, m is a single character
///
/// This is intended for the Tranquility calendar
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YEAR_MDD: PresetFormat<'static> = PresetFormat::<'static>(&I_YEAR_MDD);
/// Y-CCC alphanumeric date format, where Y has variable length, CCC is the complementary day.
///
/// This is intended for calendars with complementary days.
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const YEAR_COMPL: PresetFormat<'static> = PresetFormat::<'static>(&I_YEAR_COMPL);
/// Format which is the full name of the complementary day
///
/// This is intended for calendars with complementary days.
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const COMPL_ONLY: PresetFormat<'static> = PresetFormat::<'static>(&I_COMPL_ONLY);
/// Format which is the full name of the weekday
///
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const WEEKDAY_NAME_ONLY: PresetFormat<'static> = PresetFormat::<'static>(&I_WEEKDAY_NAME_ONLY);
/// Format which is the seconds since an epoch only
///
/// The epoch is specific to the timekeeping system.
///
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const EPOCH_SECONDS_ONLY: PresetFormat<'static> =
    PresetFormat::<'static>(&I_EPOCH_SECONDS_ONLY);
/// Format which is the days since an epoch only
///
/// The epoch is specific to the timekeeping system.
///
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub const EPOCH_DAYS_ONLY: PresetFormat<'static> = PresetFormat::<'static>(&I_EPOCH_DAYS_ONLY);

/// Format a date in a preset format
/// ## Crate Features
///
/// This is only available if `display` is enabled.
pub trait PresetDisplay: DisplayItem {
    /// Checks if language is supported
    fn supported_display_lang(lang: Language) -> bool {
        Self::supported_lang(lang)
    }

    /// Format a date in any `PresetFormat`
    fn preset_str(&self, lang: Language, preset: PresetFormat) -> String {
        let mut result = String::new();
        for item970k in preset.0 {
            result.push_str(&self.fmt_item(lang, *item))
        }
        result
    }

    /// Format a date in a calendar-specific long format
    fn long_date(&self) -> String {
        self.preset_str(Language::EN, LONG_DATE)
    }

    /// Format a date in a calendar-specific short format
    fn short_date(&self) -> String {
        self.preset_str(Language::EN, YYYYMMDD_DASH)
    }
}

Coverage Report

Created: 2025-08-13 21:01

Line	Count	Source
1		// This Source Code Form is subject to the terms of the Mozilla Public
2		// License, v. 2.0. If a copy of the MPL was not distributed with this
3		// file, You can obtain one at https://mozilla.org/MPL/2.0/.
4
5		use crate::display::private::Case;
6		use crate::display::private::Content;
7		use crate::display::private::DisplayItem;
8		use crate::display::private::DisplayOptions;
9		use crate::display::private::Item;
10		use crate::display::private::NumericContent;
11		use crate::display::private::Sign;
12		use crate::display::private::TextContent;
13		pub use crate::display::text::prelude::Language;
14
15		const O_LITERAL: DisplayOptions = DisplayOptions {
16		numerals: None,
17		width: None,
18		align: None,
19		padding: None,
20		case: None,
21		sign: Sign::OnlyNegative,
22		};
23
24		const O_YEAR_IN_ERA: DisplayOptions = DisplayOptions {
25		numerals: None,
26		width: None,
27		align: None,
28		padding: None,
29		case: None,
30		sign: Sign::Never,
31		};
32
33		const O_N1: DisplayOptions = DisplayOptions {
34		numerals: None,
35		width: Some(1),
36		align: None,
37		padding: None,
38		case: Some(Case::Upper),
39		sign: Sign::Never,
40		};
41
42		const O_N2: DisplayOptions = DisplayOptions {
43		numerals: None,
44		width: Some(2),
45		align: None,
46		padding: Some('0'),
47		case: Some(Case::Upper),
48		sign: Sign::Never,
49		};
50
51		const O_N3: DisplayOptions = DisplayOptions {
52		numerals: None,
53		width: Some(3),
54		align: None,
55		padding: None,
56		case: Some(Case::Upper),
57		sign: Sign::Never,
58		};
59
60		macro_rules! NumericDateItems {
61		($name: ident, $sep: literal, $prefix: ident, $n_prefix: literal, $stem: ident, $n_stem: literal) => {
62		const $name: [Item<'_>; 3] = [
63		Item::new(
64		Content::Numeric(NumericContent::$prefix),
65		DisplayOptions {
66		numerals: None,
67		width: Some($n_prefix),
68		align: None,
69		padding: Some('0'),
70		case: None,
71		sign: Sign::OnlyNegative,
72		},
73		),
74		Item::new(Content::Literal($sep), O_LITERAL),
75		Item::new(
76		Content::Numeric(NumericContent::$stem),
77		DisplayOptions {
78		numerals: None,
79		width: Some($n_stem),
80		align: None,
81		padding: Some('0'),
82		case: None,
83		sign: Sign::OnlyNegative,
84		},
85		),
86		];
87		};
88		($name: ident, $sep: literal, $prefix: ident, $n_prefix: literal, $stem: ident, $n_stem: literal, $suffix: ident, $n_suffix: literal) => {
89		const $name: [Item<'_>; 5] = [
90		Item::new(
91		Content::Numeric(NumericContent::$prefix),
92		DisplayOptions {
93		numerals: None,
94		width: Some($n_prefix),
95		align: None,
96		padding: Some('0'),
97		case: None,
98		sign: Sign::OnlyNegative,
99		},
100		),
101		Item::new(Content::Literal($sep), O_LITERAL),
102		Item::new(
103		Content::Numeric(NumericContent::$stem),
104		DisplayOptions {
105		numerals: None,
106		width: Some($n_stem),
107		align: None,
108		padding: Some('0'),
109		case: None,
110		sign: Sign::OnlyNegative,
111		},
112		),
113		Item::new(Content::Literal($sep), O_LITERAL),
114		Item::new(
115		Content::Numeric(NumericContent::$suffix),
116		DisplayOptions {
117		numerals: None,
118		width: Some($n_suffix),
119		align: None,
120		padding: Some('0'),
121		case: None,
122		sign: Sign::OnlyNegative,
123		},
124		),
125		];
126		};
127		}
128
129		const I_HHMM_COLON_AMPM: [Item<'_>; 5] = [
130		Item::new(
131		Content::Numeric(NumericContent::Hour1to12),
132		DisplayOptions {
133		numerals: None,
134		width: Some(2),
135		align: None,
136		padding: Some('0'),
137		case: None,
138		sign: Sign::OnlyNegative,
139		},
140		),
141		Item::new(Content::Literal(":"), O_LITERAL),
142		Item::new(
143		Content::Numeric(NumericContent::Minute),
144		DisplayOptions {
145		numerals: None,
146		width: Some(2),
147		align: None,
148		padding: Some('0'),
149		case: None,
150		sign: Sign::OnlyNegative,
151		},
152		),
153		Item::new(Content::Literal(" "), O_LITERAL),
154		Item::new(Content::Text(TextContent::HalfDayAbbrev), O_LITERAL),
155		];
156
157		NumericDateItems!(I_HHMMSS_COLON, ":", Hour0to23, 2, Minute, 2, Second, 2);
158		NumericDateItems!(I_YYYYMMDD_DASH, "-", Year, 4, Month, 2, DayOfMonth, 2);
159		NumericDateItems!(I_YYYYYMMDD_DASH, "-", Year, 5, Month, 2, DayOfMonth, 2);
160		NumericDateItems!(I_YYYYMMDD_SLASH, "/", Year, 4, Month, 2, DayOfMonth, 2);
161		NumericDateItems!(I_DDMMYYYY_SLASH, "/", DayOfMonth, 2, Month, 2, Year, 4);
162		NumericDateItems!(I_DDMMYYYY_DOT, ".", DayOfMonth, 2, Month, 2, Year, 4);
163		NumericDateItems!(I_MMDDYYYY_SLASH, "/", Month, 2, DayOfMonth, 2, Year, 4);
164		NumericDateItems!(I_YYYYOOO_DASH, "-", Year, 4, DayOfYear, 3);
165		NumericDateItems!(I_YYYYYOOO_DASH, "-", Year, 5, DayOfYear, 3);
166
167		const I_LONG_DATE: [Item<'_>; 9] = [
168		Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
169		Item::new(Content::Literal(" "), O_LITERAL),
170		Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
171		Item::new(Content::Literal(" "), O_LITERAL),
172		Item::new(Content::Numeric(NumericContent::DayOfMonth), O_LITERAL),
173		Item::new(Content::Literal(", "), O_LITERAL),
174		Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
175		Item::new(Content::Literal(" "), O_LITERAL),
176		Item::new(Content::Text(TextContent::EraName), O_LITERAL),
177		];
178
179		const I_LONG_DAY_OF_MONTH: [Item<'_>; 9] = [
180		Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
181		Item::new(Content::Literal(" "), O_LITERAL),
182		Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
183		Item::new(Content::Literal(" "), O_LITERAL),
184		Item::new(Content::Text(TextContent::DayOfMonthName), O_LITERAL),
185		Item::new(Content::Literal(", "), O_LITERAL),
186		Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
187		Item::new(Content::Literal(" "), O_LITERAL),
188		Item::new(Content::Text(TextContent::EraName), O_LITERAL),
189		];
190
191		const I_LONG_COMPL: [Item<'_>; 5] = [
192		Item::new(Content::Text(TextContent::ComplementaryDayName), O_LITERAL),
193		Item::new(Content::Literal(", "), O_LITERAL),
194		Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
195		Item::new(Content::Literal(" "), O_LITERAL),
196		Item::new(Content::Text(TextContent::EraName), O_LITERAL),
197		];
198
199		const I_LONG_DATE_ERA_ABBR: [Item<'_>; 9] = [
200		Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
201		Item::new(Content::Literal(" "), O_LITERAL),
202		Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
203		Item::new(Content::Literal(" "), O_LITERAL),
204		Item::new(Content::Numeric(NumericContent::DayOfMonth), O_LITERAL),
205		Item::new(Content::Literal(", "), O_LITERAL),
206		Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
207		Item::new(Content::Literal(" "), O_LITERAL),
208		Item::new(Content::Text(TextContent::EraAbbreviation), O_LITERAL),
209		];
210
211		const I_LONG_DAY_OF_MONTH_ERA_ABBR: [Item<'_>; 9] = [
212		Item::new(Content::Text(TextContent::DayOfWeekName), O_LITERAL),
213		Item::new(Content::Literal(" "), O_LITERAL),
214		Item::new(Content::Text(TextContent::MonthName), O_LITERAL),
215		Item::new(Content::Literal(" "), O_LITERAL),
216		Item::new(Content::Text(TextContent::DayOfMonthName), O_LITERAL),
217		Item::new(Content::Literal(", "), O_LITERAL),
218		Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
219		Item::new(Content::Literal(" "), O_LITERAL),
220		Item::new(Content::Text(TextContent::EraAbbreviation), O_LITERAL),
221		];
222
223		const I_LONG_COMPL_ERA_ABBR: [Item<'_>; 5] = [
224		Item::new(Content::Text(TextContent::ComplementaryDayName), O_LITERAL),
225		Item::new(Content::Literal(", "), O_LITERAL),
226		Item::new(Content::Numeric(NumericContent::Year), O_YEAR_IN_ERA),
227		Item::new(Content::Literal(" "), O_LITERAL),
228		Item::new(Content::Text(TextContent::EraAbbreviation), O_LITERAL),
229		];
230
231		const I_YEAR_WEEK_DAY: [Item<'_>; 5] = [
232		Item::new(Content::Numeric(NumericContent::Year), O_LITERAL),
233		Item::new(Content::Literal("-W"), O_LITERAL),
234		Item::new(Content::Numeric(NumericContent::WeekOfYear), O_N2),
235		Item::new(Content::Literal("-"), O_LITERAL),
236		Item::new(Content::Numeric(NumericContent::DayOfWeek), O_N1),
237		];
238
239		const I_YEAR_MDD: [Item<'_>; 4] = [
240		Item::new(Content::Numeric(NumericContent::Year), O_LITERAL),
241		Item::new(Content::Literal("-"), O_LITERAL),
242		Item::new(Content::Text(TextContent::MonthName), O_N1),
243		Item::new(Content::Numeric(NumericContent::DayOfMonth), O_N2),
244		];
245
246		const I_YEAR_COMPL: [Item<'_>; 3] = [
247		Item::new(Content::Numeric(NumericContent::Year), O_LITERAL),
248		Item::new(Content::Literal("-"), O_LITERAL),
249		Item::new(Content::Text(TextContent::ComplementaryDayName), O_N3),
250		];
251
252		const I_COMPL_ONLY: [Item<'_>; 1] = [Item::new(
253		Content::Text(TextContent::ComplementaryDayName),
254		O_LITERAL,
255		)];
256
257		const I_WEEKDAY_NAME_ONLY: [Item<'_>; 1] = [Item::new(
258		Content::Text(TextContent::DayOfWeekName),
259		O_LITERAL,
260		)];
261
262		const I_EPOCH_SECONDS_ONLY: [Item<'_>; 1] = [Item::new(
263		Content::Numeric(NumericContent::SecondsSinceEpoch),
264		O_LITERAL,
265		)];
266
267		const I_EPOCH_DAYS_ONLY: [Item<'_>; 1] = [Item::new(
268		Content::Numeric(NumericContent::DaysSinceEpoch),
269		O_LITERAL,
270		)];
271
272		/// Represents a date format
273		/// ## Crate Features
274		///
275		/// This is only available if `display` is enabled.
276		#[derive(Debug, PartialEq, Clone, Copy)]
277		pub struct PresetFormat<'a>(&'a [Item<'a>]);
278
279		/// HH:MM AM/PM time format
280		/// ## Crate Features
281		///
282		/// This is only available if `display` is enabled.
283		pub const HHMM_COLON_AMPM: PresetFormat<'static> = PresetFormat::<'static>(&I_HHMM_COLON_AMPM);
284		/// HH:MM:SS time format
285		/// ## Crate Features
286		///
287		/// This is only available if `display` is enabled.
288		pub const HHMMSS_COLON: PresetFormat<'static> = PresetFormat::<'static>(&I_HHMMSS_COLON);
289		/// YYYY-MM-DD numeric date format
290		/// ## Crate Features
291		///
292		/// This is only available if `display` is enabled.
293		pub const YYYYMMDD_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYMMDD_DASH);
294		/// YYYYY-MM-DD numeric date format
295		///
296		/// This is intended for the Holocene Calendar.
297		///
298		/// ## Crate Features
299		///
300		/// This is only available if `display` is enabled.
301		pub const YYYYYMMDD_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYYMMDD_DASH);
302		/// YYYY/MM/DD numeric date format
303		/// ## Crate Features
304		///
305		/// This is only available if `display` is enabled.
306		pub const YYYYMMDD_SLASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYMMDD_SLASH);
307		/// DD/MM/YYYY numeric date format
308		/// ## Crate Features
309		///
310		/// This is only available if `display` is enabled.
311		pub const DDMMYYYY_SLASH: PresetFormat<'static> = PresetFormat::<'static>(&I_DDMMYYYY_SLASH);
312		/// DD.MM.YYYY numeric date format
313		/// ## Crate Features
314		///
315		/// This is only available if `display` is enabled.
316		pub const DDMMYYYY_DOT: PresetFormat<'static> = PresetFormat::<'static>(&I_DDMMYYYY_DOT);
317		/// MM/DD/YYYY numeric date format
318		/// ## Crate Features
319		///
320		/// This is only available if `display` is enabled.
321		pub const MMDDYYYY_SLASH: PresetFormat<'static> = PresetFormat::<'static>(&I_MMDDYYYY_SLASH);
322		/// YYYY-OOO numeric date format, where OOO is day of year
323		///
324		/// ## Crate Features
325		///
326		/// This is only available if `display` is enabled.
327		pub const YYYYOOO_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYOOO_DASH);
328		/// YYYY-OOO numeric date format, where OOO is day of year
329		///
330		/// ## Crate Features
331		///
332		/// This is only available if `display` is enabled.
333		pub const YYYYYOOO_DASH: PresetFormat<'static> = PresetFormat::<'static>(&I_YYYYYOOO_DASH);
334		/// Calendar-specific long date format
335		/// ## Crate Features
336		///
337		/// This is only available if `display` is enabled.
338		pub const LONG_DATE: PresetFormat<'static> = PresetFormat::<'static>(&I_LONG_DATE);
339		/// Calendar-specific long date format with day of month name
340		/// ## Crate Features
341		///
342		/// This is only available if `display` is enabled.
343		pub const LONG_DAY_OF_MONTH: PresetFormat<'static> = PresetFormat::<'static>(&I_LONG_DAY_OF_MONTH);
344		/// Calendar-specific long complementary day format
345		///
346		/// This is intended for calendars with complementary days.
347		/// ## Crate Features
348		///
349		/// This is only available if `display` is enabled.
350		pub const LONG_COMPL: PresetFormat<'static> = PresetFormat::<'static>(&I_LONG_COMPL);
351		/// Calendar-specific long date format, with abbreviated era
352		/// ## Crate Features
353		///
354		/// This is only available if `display` is enabled.
355		pub const LONG_DATE_ERA_ABBR: PresetFormat<'static> =
356		PresetFormat::<'static>(&I_LONG_DATE_ERA_ABBR);
357		/// Calendar-specific long date format with day of month name and abbreviated era
358		/// ## Crate Features
359		///
360		/// This is only available if `display` is enabled.
361		pub const LONG_DAY_OF_MONTH_ERA_ABBR: PresetFormat<'static> =
362		PresetFormat::<'static>(&I_LONG_DAY_OF_MONTH_ERA_ABBR);
363		/// Calendar-specific long complementary day format, with abbreviated era
364		///
365		/// This is intended for calendars with complementary days.
366		/// ## Crate Features
367		///
368		/// This is only available if `display` is enabled.
369		pub const LONG_COMPL_ERA_ABBR: PresetFormat<'static> =
370		PresetFormat::<'static>(&I_LONG_COMPL_ERA_ABBR);
371		/// YYYY-Www-DD alphanumeric date format
372		///
373		/// This is inteded for the ISO calendar.
374		/// ## Crate Features
375		///
376		/// This is only available if `display` is enabled.
377		pub const YEAR_WEEK_DAY: PresetFormat<'static> = PresetFormat::<'static>(&I_YEAR_WEEK_DAY);
378		/// Y-mDD alphanumeric date format, where Y has variable length, m is a single character
379		///
380		/// This is intended for the Tranquility calendar
381		/// ## Crate Features
382		///
383		/// This is only available if `display` is enabled.
384		pub const YEAR_MDD: PresetFormat<'static> = PresetFormat::<'static>(&I_YEAR_MDD);
385		/// Y-CCC alphanumeric date format, where Y has variable length, CCC is the complementary day.
386		///
387		/// This is intended for calendars with complementary days.
388		/// ## Crate Features
389		///
390		/// This is only available if `display` is enabled.
391		pub const YEAR_COMPL: PresetFormat<'static> = PresetFormat::<'static>(&I_YEAR_COMPL);
392		/// Format which is the full name of the complementary day
393		///
394		/// This is intended for calendars with complementary days.
395		/// ## Crate Features
396		///
397		/// This is only available if `display` is enabled.
398		pub const COMPL_ONLY: PresetFormat<'static> = PresetFormat::<'static>(&I_COMPL_ONLY);
399		/// Format which is the full name of the weekday
400		///
401		/// ## Crate Features
402		///
403		/// This is only available if `display` is enabled.
404		pub const WEEKDAY_NAME_ONLY: PresetFormat<'static> = PresetFormat::<'static>(&I_WEEKDAY_NAME_ONLY);
405		/// Format which is the seconds since an epoch only
406		///
407		/// The epoch is specific to the timekeeping system.
408		///
409		/// ## Crate Features
410		///
411		/// This is only available if `display` is enabled.
412		pub const EPOCH_SECONDS_ONLY: PresetFormat<'static> =
413		PresetFormat::<'static>(&I_EPOCH_SECONDS_ONLY);
414		/// Format which is the days since an epoch only
415		///
416		/// The epoch is specific to the timekeeping system.
417		///
418		/// ## Crate Features
419		///
420		/// This is only available if `display` is enabled.
421		pub const EPOCH_DAYS_ONLY: PresetFormat<'static> = PresetFormat::<'static>(&I_EPOCH_DAYS_ONLY);
422
423		/// Format a date in a preset format
424		/// ## Crate Features
425		///
426		/// This is only available if `display` is enabled.
427		pub trait PresetDisplay: DisplayItem {
428		/// Checks if language is supported
429	2	fn supported_display_lang(lang: Language) -> bool {
430	2	Self::supported_lang(lang)
431	2	}
432
433		/// Format a date in any `PresetFormat`
434	171k	fn preset_str(&self, lang: Language, preset: PresetFormat) -> String {
435	171k	let mut result = String::new();
436	1.14M	for item970k in preset.0 {
437	970k	result.push_str(&self.fmt_item(lang, *item))
438		}
439	171k	result
440	171k	}
441
442		/// Format a date in a calendar-specific long format
443	23.0k	fn long_date(&self) -> String {
444	23.0k	self.preset_str(Language::EN, LONG_DATE)
445	23.0k	}
446
447		/// Format a date in a calendar-specific short format
448	6	fn short_date(&self) -> String {
449	6	self.preset_str(Language::EN, YYYYMMDD_DASH)
450	6	}
451		}