Struct EastAsianWidth

pub struct EastAsianWidth(/* private fields */);

Enumerated property East_Asian_Width.

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

Example

use icu::properties::{props::EastAsianWidth, CodePointMapData};

assert_eq!(
    CodePointMapData::<EastAsianWidth>::new().get('ｱ'),
    EastAsianWidth::Halfwidth
); // U+FF71: Halfwidth Katakana Letter A
assert_eq!(
    CodePointMapData::<EastAsianWidth>::new().get('ア'),
    EastAsianWidth::Wide
); //U+30A2: Katakana Letter A

Implementations

impl EastAsianWidth

pub const fn to_icu4c_value(self) -> u8

Returns an ICU4C UEastAsianWidth value.

pub const fn from_icu4c_value(value: u8) -> EastAsianWidth

Constructor from an ICU4C UEastAsianWidth value.

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

pub const ALL_VALUES: &'static [EastAsianWidth]

All possible values of this enum in the Unicode version from this ICU4X release.

Trait Implementations

impl AsULE for EastAsianWidth

type ULE = u8

The ULE type corresponding to Self.

fn to_unaligned(self) -> <EastAsianWidth as AsULE>::ULE

Converts from Self to Self::ULE.

fn from_unaligned(unaligned: <EastAsianWidth as AsULE>::ULE) -> EastAsianWidth

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<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EastAsianWidth

fn deserialize<__D>( __deserializer: __D, ) -> Result<EastAsianWidth, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl EnumeratedProperty for EastAsianWidth

const NAME: &'static [u8]

The name of this property

const SHORT_NAME: &'static [u8]

The abbreviated name of this property, if it exists, otherwise the name

fn for_char(ch: char) -> Self

Convenience method for CodePointMapData::new().get(ch)

impl Hash for EastAsianWidth

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

where __H: Hasher,

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 NamedEnumeratedProperty for EastAsianWidth

fn try_from_str(s: &str) -> Option<Self>

Convenience method for PropertyParser::new().get_loose(s)

fn long_name(&self) -> &'static str

Convenience method for PropertyNamesLong::new().get(*self).unwrap()

fn short_name(&self) -> &'static str

Convenience method for PropertyNamesShort::new().get(*self).unwrap()

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 Serialize for EastAsianWidth

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

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<EastAsianWidth, <EastAsianWidth as TrieValue>::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 Copy for EastAsianWidth

impl Eq for EastAsianWidth

impl ParseableEnumeratedProperty for EastAsianWidth

impl StructuralPartialEq for EastAsianWidth