Enum LineBreakStyle

#[non_exhaustive]
pub enum LineBreakStyle {
    Strict,
    Normal,
    Loose,
}

A Unicode Line Break Style Identifier defines a preferred line break style corresponding to the CSS level 3 line-break option.

Specifying “lb” in a locale identifier overrides the locale’s default style (which may correspond to “normal” or “strict”).

The valid values are listed in LDML.

Variants (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.

Strict

CSS level 3 line-break=strict, e.g. treat CJ as NS

Normal

CSS level 3 line-break=normal, e.g. treat CJ as ID, break before hyphens for ja,zh

Loose

CSS lev 3 line-break=loose

Implementations

impl LineBreakStyle

pub const fn as_str(&self) -> &'static str

A helper function for displaying as a &str.

Trait Implementations

impl Clone for LineBreakStyle

fn clone(&self) -> LineBreakStyle

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LineBreakStyle

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

Formats the value using the given formatter.

impl From<LineBreakStyle> for Value

fn from(input: LineBreakStyle) -> Value

Converts to this type from the input type.

impl Hash for LineBreakStyle

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 PartialEq for LineBreakStyle

fn eq(&self, other: &LineBreakStyle) -> 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 PreferenceKey for LineBreakStyle

fn unicode_extension_key() -> Option<Key>

Retrieve unicode extension key corresponding to a given preference.

fn try_from_key_value( key: &Key, value: &Value, ) -> Result<Option<Self>, 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.

fn unicode_extension_value(&self) -> Option<Value>

Retrieve unicode extension value corresponding to the given instance of the preference.

impl TryFrom<&Value> for LineBreakStyle

type Error = PreferencesParseError

The type returned in the event of a conversion error.

fn try_from(s: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for LineBreakStyle

impl Eq for LineBreakStyle

impl StructuralPartialEq for LineBreakStyle