Struct EastAsianWidth

#[repr(transparent)]
pub struct EastAsianWidth(pub u8);

Enumerated property East_Asian_Width.

See “Definition” in UAX #11 for the summary of each property value: https://www.unicode.org/reports/tr11/#Definitions

The numeric value is compatible with UEastAsianWidth in ICU4C.

Tuple Fields

0: u8

Implementations

impl EastAsianWidth

pub const Neutral: EastAsianWidth = _

pub const Ambiguous: EastAsianWidth = _

pub const Halfwidth: EastAsianWidth = _

pub const Fullwidth: EastAsianWidth = _

pub const Narrow: EastAsianWidth = _

pub const Wide: EastAsianWidth = _

impl EastAsianWidth

pub const fn name_to_enum_mapper() -> PropertyValueNameToEnumMapperBorrowed<'static, EastAsianWidth>

Return a PropertyValueNameToEnumMapper, capable of looking up values from strings for the East_Asian_Width enumerated property.

✨ Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

Example

use icu::properties::EastAsianWidth;

let lookup = EastAsianWidth::name_to_enum_mapper();
// short name for value
assert_eq!(lookup.get_strict("N"), Some(EastAsianWidth::Neutral));
assert_eq!(lookup.get_strict("H"), Some(EastAsianWidth::Halfwidth));
// long name for value
assert_eq!(lookup.get_strict("Neutral"), Some(EastAsianWidth::Neutral));
assert_eq!(lookup.get_strict("Halfwidth"), Some(EastAsianWidth::Halfwidth));
// name has incorrect casing / extra hyphen
assert_eq!(lookup.get_strict("half-width"), None);
// loose matching of name
assert_eq!(lookup.get_loose("half-width"), Some(EastAsianWidth::Halfwidth));
// fake property
assert_eq!(lookup.get_strict("TwoPointFiveWidth"), None);

pub fn get_name_to_enum_mapper( provider: &(impl DataProvider<EastAsianWidthNameToValueV1Marker> + ?Sized), ) -> Result<PropertyValueNameToEnumMapper<EastAsianWidth>, PropertiesError>

A version of EastAsianWidth::name_to_enum_mapper() that uses custom data provided by a DataProvider.

📚 Help choosing a constructor

pub const fn enum_to_short_name_mapper() -> PropertyEnumToValueNameLinearMapperBorrowed<'static, EastAsianWidth>

Return a PropertyEnumToValueNameLinearMapper, capable of looking up short names for values of the East_Asian_Width enumerated property.

✨ Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

Example

use icu::properties::EastAsianWidth;

let lookup = EastAsianWidth::enum_to_short_name_mapper();
assert_eq!(lookup.get(EastAsianWidth::Neutral), Some("N"));
assert_eq!(lookup.get(EastAsianWidth::Halfwidth), Some("H"));

pub fn get_enum_to_short_name_mapper( provider: &(impl DataProvider<EastAsianWidthValueToShortNameV1Marker> + ?Sized), ) -> Result<PropertyEnumToValueNameLinearMapper<EastAsianWidth>, PropertiesError>

A version of EastAsianWidth::enum_to_short_name_mapper() that uses custom data provided by a DataProvider.

📚 Help choosing a constructor

pub const fn enum_to_long_name_mapper() -> PropertyEnumToValueNameLinearMapperBorrowed<'static, EastAsianWidth>

Return a PropertyEnumToValueNameLinearMapper, capable of looking up long names for values of the East_Asian_Width enumerated property.

✨ Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

Example

use icu::properties::EastAsianWidth;

let lookup = EastAsianWidth::enum_to_long_name_mapper();
assert_eq!(lookup.get(EastAsianWidth::Neutral), Some("Neutral"));
assert_eq!(lookup.get(EastAsianWidth::Halfwidth), Some("Halfwidth"));

pub fn get_enum_to_long_name_mapper( provider: &(impl DataProvider<EastAsianWidthValueToLongNameV1Marker> + ?Sized), ) -> Result<PropertyEnumToValueNameLinearMapper<EastAsianWidth>, PropertiesError>

A version of EastAsianWidth::enum_to_long_name_mapper() that uses custom data provided by a DataProvider.

📚 Help choosing a constructor

Trait Implementations

impl AsULE for EastAsianWidth

type ULE = EastAsianWidthULE

The ULE type corresponding to Self.

fn to_unaligned(self) -> Self::ULE

Converts from Self to Self::ULE.

fn from_unaligned(unaligned: Self::ULE) -> Self

Converts from Self::ULE to Self.

impl Clone for EastAsianWidth

fn clone(&self) -> EastAsianWidth

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EastAsianWidth

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

Formats the value using the given formatter.

impl Hash for EastAsianWidth

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for EastAsianWidth

fn cmp(&self, other: &EastAsianWidth) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for EastAsianWidth

fn eq(&self, other: &EastAsianWidth) -> 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 PartialOrd for EastAsianWidth

fn partial_cmp(&self, other: &EastAsianWidth) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TrieValue for EastAsianWidth

type TryFromU32Error = TryFromIntError

Last-resort fallback value to return if we cannot read data from the trie.

fn try_from_u32(i: u32) -> Result<Self, Self::TryFromU32Error>

A parsing function that is primarily motivated by deserialization contexts. When the serialization type width is smaller than 32 bits, then it is expected that the call site will widen the value to a u32 first.

fn to_u32(self) -> u32

A method for converting back to a u32 that can roundtrip through Self::try_from_u32(). The default implementation of this trait method panics in debug mode and returns 0 in release mode.

impl<'a> ZeroMapKV<'a> for EastAsianWidth

type Container = ZeroVec<'a, EastAsianWidth>

The container that can be used with this type: ZeroVec or VarZeroVec.

type Slice = ZeroSlice<EastAsianWidth>

type GetType = EastAsianWidthULE

The type produced by Container::get()

type OwnedType = EastAsianWidth

The type produced by Container::replace() and Container::remove(), also used during deserialization. If Self is human readable serialized, deserializing to Self::OwnedType should produce the same value once passed through Self::owned_as_self()

impl Copy for EastAsianWidth

impl Eq for EastAsianWidth

impl StructuralPartialEq for EastAsianWidth