Enum icu::locale::preferences::extensions::unicode::keywords::HourCycle
source · #[non_exhaustive]pub enum HourCycle {
H11,
H12,
H23,
H24,
}
Expand description
A Unicode Hour Cycle Identifier defines the preferred time cycle. Specifying “hc” in a locale identifier overrides the default value specified by supplemental time data for the region.
The valid values are listed in LDML.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
H11
Hour system using 1–12; corresponds to ‘h’ in patterns
H12
Hour system using 0–23; corresponds to ‘H’ in patterns
H23
Hour system using 0–11; corresponds to ‘K’ in patterns
H24
Hour system using 1–24; corresponds to ‘k’ in pattern
Implementations§
Trait Implementations§
source§impl PreferenceKey for HourCycle
impl PreferenceKey for HourCycle
source§fn unicode_extension_key() -> Option<Key>
fn unicode_extension_key() -> Option<Key>
Retrieve unicode extension key corresponding to a given preference.
source§fn try_from_key_value(
key: &Key,
value: &Value,
) -> Result<Option<HourCycle>, PreferencesParseError>
fn try_from_key_value( key: &Key, value: &Value, ) -> Result<Option<HourCycle>, PreferencesParseError>
Optional constructor of the given preference. It takes the
unicode extension key and if the key matches it attemptes to construct
the preference based on the given value.
If the value is not a valid value for the given key, the constructor throws.
source§fn unicode_extension_value(&self) -> Option<Value>
fn unicode_extension_value(&self) -> Option<Value>
Retrieve unicode extension value corresponding to the given instance of the preference.
impl Copy for HourCycle
impl Eq for HourCycle
impl StructuralPartialEq for HourCycle
Auto Trait Implementations§
impl Freeze for HourCycle
impl RefUnwindSafe for HourCycle
impl Send for HourCycle
impl Sync for HourCycle
impl Unpin for HourCycle
impl UnwindSafe for HourCycle
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more