Struct icu::datetime::fieldsets::DT

#[non_exhaustive]
pub struct DT {
    pub length: Length,
    pub alignment: Option<Alignment>,
    pub time_precision: Option<TimePrecision>,
}

“17, 3:47:50 PM” ⇒ day of month (standalone) with time

Examples

In DateTimeFormatter:

use icu::calendar::DateTime;
use icu::datetime::DateTimeFormatter;
use icu::datetime::fieldsets::DT;
use icu::locale::locale;
use writeable::assert_writeable_eq;

let fmt = DateTimeFormatter::try_new(
    locale!("en").into(),
   DT::short(),
)
.unwrap();
let dt = DateTime::try_new_iso(2024, 5, 17, 15, 47, 50).unwrap();

assert_writeable_eq!(
    fmt.format_any_calendar(&dt),
   "17, 3:47:50 PM"
);

In FixedCalendarDateTimeFormatter:

use icu::calendar::DateTime;
use icu::calendar::Gregorian;
use icu::datetime::FixedCalendarDateTimeFormatter;
use icu::datetime::fieldsets::DT;
use icu::locale::locale;
use writeable::assert_writeable_eq;

let fmt = FixedCalendarDateTimeFormatter::try_new(
    locale!("en").into(),
   DT::short(),
)
.unwrap();
let dt = DateTime::try_new_gregorian(2024, 5, 17, 15, 47, 50).unwrap();

assert_writeable_eq!(
    fmt.format(&dt),
   "17, 3:47:50 PM"
);

This format may use ordinal formatting, such as “the 17th”, in the future. See CLDR-18040.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

length: Length

The desired length of the formatted string.

See: Length

alignment: Option<Alignment>

Whether fields should be aligned for a column-like layout.

See: Alignment

time_precision: Option<TimePrecision>

How precisely to display the time of day

See: TimePrecision

Implementations

impl DT

pub const fn with_alignment(self, alignment: Alignment) -> DT

Sets the alignment option.

impl DT

pub const fn with_time_precision(self, time_precision: TimePrecision) -> DT

Sets the time precision option.

pub fn hm(self) -> DT

Sets the time precision to TimePrecision::MinuteExact

impl DT

pub const fn with_length(length: Length) -> DT

Creates a DT skeleton with the given formatting length.

pub const fn long() -> DT

Creates a DT skeleton with a long length.

pub const fn medium() -> DT

Creates a DT skeleton with a medium length.

pub const fn short() -> DT

Creates a DT skeleton with a short length.

impl DT

pub fn with_zone_specific_long(self) -> Combo<DT, Z>

Associates this field set with a long specific non-location format time zone, as in “Pacific Daylight Time”.

pub fn with_zone_specific(self) -> Combo<DT, Zs>

Associates this field set with a short specific non-location format time zone, as in “PDT”.

pub fn with_zone_offset_long(self) -> Combo<DT, O>

Associates this field set with a long offset format time zone, as in “GMT−08:00”.

pub fn with_zone_offset(self) -> Combo<DT, Os>

Associates this field set with a short offset format time zone, as in “GMT−8”.

pub fn with_zone_generic_long(self) -> Combo<DT, V>

Associates this field set with a long generic non-location format time zone, as in “Pacific Time”.

pub fn with_zone_generic(self) -> Combo<DT, Vs>

Associates this field set with a short generic non-location format time zone, as in “PT”.

pub fn with_zone_location(self) -> Combo<DT, L>

Associates this field set with a location format time zone, as in “Los Angeles time”.

Trait Implementations

impl Clone for DT

fn clone(&self) -> DT

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl DateDataMarkers for DT

type Skel = FullDataCalMarkers

Cross-calendar data markers for date skeleta.

type Year = NoDataCalMarkers

Cross-calendar data markers for year names.

type Month = NoDataCalMarkers

Cross-calendar data markers for month names.

type WeekdayNamesV1Marker = NeverMarker<LinearNamesV1<'static>>

Marker for loading weekday names.

impl DateInputMarkers for DT

type YearInput = ()

Marker for resolving the year input field.

type MonthInput = ()

Marker for resolving the month input field.

type DayOfMonthInput = DayOfMonth

Marker for resolving the day-of-month input field.

type DayOfYearInput = ()

Marker for resolving the day-of-year input field.

type DayOfWeekInput = ()

Marker for resolving the day-of-week input field.

impl DateTimeMarkers for DT

type D = DT

Associated types for date formatting.

type T = DT

Associated types for time formatting.

type Z = ()

Associated types for time zone formatting.

type GluePatternV1Marker = GluePatternV1Marker

Marker for loading the date/time glue pattern.

impl DateTimeNamesMarker for DT

type YearNames = ()

type MonthNames = ()

type WeekdayNames = ()

type DayPeriodNames = DayPeriodNamesV1Marker

type ZoneEssentials = ()

type ZoneLocations = ()

type ZoneGenericLong = ()

type ZoneGenericShort = ()

type ZoneSpecificLong = ()

type ZoneSpecificShort = ()

type MetazoneLookup = ()

impl Debug for DT

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl GetField<CompositeFieldSet> for DT

fn get_field(&self) -> CompositeFieldSet

Returns the value of this trait’s field T.

impl PartialEq for DT

fn eq(&self, other: &DT) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TimeMarkers for DT

type DayPeriodNamesV1Marker = DayPeriodNamesV1Marker

Marker for loading day period names.

type TimeSkeletonPatternsV1Marker = TimeNeoSkeletonPatternsV1Marker

Marker for loading time skeleton patterns.

type HourInput = IsoHour

Marker for resolving the day-of-month input field.

type MinuteInput = IsoMinute

Marker for resolving the day-of-week input field.

type SecondInput = IsoSecond

Marker for resolving the day-of-year input field.

type NanoSecondInput = NanoSecond

Marker for resolving the any-calendar-kind input field.

impl<C> TypedDateDataMarkers<C> for DT

where C: CldrCalendar,

type DateSkeletonPatternsV1Marker = <C as CldrCalendar>::SkeletaV1Marker

Marker for loading date skeleton patterns.

type YearNamesV1Marker = NeverMarker<YearNamesV1<'static>>

Marker for loading year names.

type MonthNamesV1Marker = NeverMarker<MonthNamesV1<'static>>

Marker for loading month names.

type WeekdayNamesV1Marker = NeverMarker<LinearNamesV1<'static>>

Marker for loading weekday names.

impl Copy for DT

impl Eq for DT

impl StructuralPartialEq for DT

impl UnstableSealed for DT