radnelac/display/
iso.rs

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
5use crate::calendar::ISO;
6use crate::clock::TimeOfDay;
7use crate::day_count::ToFixed;
8use crate::display::moment::DisplayMomentItem;
9use crate::display::prelude::PresetDisplay;
10use crate::display::prelude::YEAR_WEEK_DAY;
11use crate::display::private::fmt_days_since_epoch;
12use crate::display::private::fmt_number;
13use crate::display::private::fmt_quarter;
14use crate::display::private::fmt_seconds_since_epoch;
15use crate::display::private::fmt_string;
16use crate::display::private::get_dict;
17use crate::display::private::DisplayItem;
18use crate::display::private::DisplayOptions;
19use crate::display::private::NumericContent;
20use crate::display::private::TextContent;
21use crate::display::text::prelude::Language;
22use std::fmt;
23
24impl DisplayItem for ISO {
25    fn supported_lang(lang: Language) -> bool {
26        get_dict(lang).iso.as_ref().is_some()
27    }
28
29    fn fmt_numeric(&self, n: NumericContent, opt: DisplayOptions) -> String {
30        match n {
31            NumericContent::Month | NumericContent::DayOfMonth => "".to_string(),
32            NumericContent::Year => fmt_number(self.year(), opt),
33            NumericContent::DayOfWeek => fmt_number(self.day_num() as i8, opt),
34            NumericContent::DayOfYear => "".to_string(),
35            NumericContent::Hour1to12
36            | NumericContent::Hour0to23
37            | NumericContent::Minute
38            | NumericContent::Second => self.convert::<TimeOfDay>().fmt_numeric(n, opt),
39            NumericContent::SecondsSinceEpoch => fmt_seconds_since_epoch(*self, opt),
40            NumericContent::Quarter => fmt_quarter(*self, opt),
41            NumericContent::DaysSinceEpoch => fmt_days_since_epoch(*self, opt),
42            NumericContent::ComplementaryDay => "".to_string(),
43            NumericContent::WeekOfYear => fmt_number(self.week().get() as i8, opt),
44        }
45    }
46    fn fmt_text(&self, t: TextContent, lang: Language, opt: DisplayOptions) -> String {
47        match (t, get_dict(lang).iso.as_ref()) {
48            (TextContent::DayOfWeekName, _) => self.day().fmt_text(t, lang, opt),
49            (TextContent::HalfDayName | TextContent::HalfDayAbbrev, _) => {
50                self.convert::<TimeOfDay>().fmt_text(t, lang, opt)
51            }
52            (TextContent::EraName, Some(dict)) => {
53                if self.year() < 0 {
54                    fmt_string(dict.before_epoch_full, opt)
55                } else {
56                    fmt_string(dict.after_epoch_full, opt)
57                }
58            }
59            (TextContent::EraAbbreviation, Some(dict)) => {
60                if self.year() < 0 {
61                    fmt_string(dict.before_epoch_abr, opt)
62                } else {
63                    fmt_string(dict.after_epoch_abr, opt)
64                }
65            }
66            (_, _) => String::from(""),
67        }
68    }
69}
70
71impl PresetDisplay for ISO {
72    fn long_date(&self) -> String {
73        self.preset_str(Language::EN, YEAR_WEEK_DAY)
74    }
75
76    fn short_date(&self) -> String {
77        self.preset_str(Language::EN, YEAR_WEEK_DAY)
78    }
79}
80
81impl fmt::Display for ISO {
82    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
83        write!(f, "{}", self.long_date())
84    }
85}
86
87impl DisplayMomentItem for ISO {}
88
89#[cfg(test)]
90mod tests {
91    use super::*;
92    use crate::calendar::CommonDate;
93    use crate::calendar::Gregorian;
94    use crate::calendar::ToFromCommonDate;
95
96    #[test]
97    fn expected_languages() {
98        assert!(ISO::supported_lang(Language::EN));
99    }
100
101    #[test]
102    fn w1() {
103        let dg = Gregorian::try_from_common_date(CommonDate::new(2007, 1, 1)).unwrap();
104        let di = dg.convert::<ISO>();
105        let s = di.short_date();
106        assert_eq!(&s, "2007-W01-1")
107    }
108}
radnelac/display/iso.rs

radnelac/display/
iso.rs
