Enum icu::locale::preferences::extensions::unicode::keywords::LineBreakWordHandling

#[non_exhaustive]
pub enum LineBreakWordHandling {
    Normal,
    BreakAll,
    KeepAll,
    Phrase,
}

A Unicode Line Break Word Identifier defines preferred line break word handling behavior corresponding to the CSS level 3 word-break option.

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

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.

Normal

CSS lev 3 word-break=normal, normal script/language behavior for midword breaks

BreakAll

CSS lev 3 word-break=break-all, allow midword breaks unless forbidden by lb setting

KeepAll

CSS lev 3 word-break=keep-all, prohibit midword breaks except for dictionary breaks

Phrase

Prioritize keeping natural phrases (of multiple words) together when breaking, used in short text like title and headline

Implementations

impl LineBreakWordHandling

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

A helper function for displaying as a &str.

Trait Implementations

impl Clone for LineBreakWordHandling

fn clone(&self) -> LineBreakWordHandling

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LineBreakWordHandling

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

Formats the value using the given formatter.

impl From<LineBreakWordHandling> for Value

fn from(input: LineBreakWordHandling) -> Value

Converts to this type from the input type.

impl Hash for LineBreakWordHandling

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 PartialEq for LineBreakWordHandling

fn eq(&self, other: &LineBreakWordHandling) -> 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 LineBreakWordHandling

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<LineBreakWordHandling>, 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 LineBreakWordHandling

type Error = PreferencesParseError

The type returned in the event of a conversion error.

fn try_from( s: &Value, ) -> Result<LineBreakWordHandling, <LineBreakWordHandling as TryFrom<&Value>>::Error>

Performs the conversion.

impl Copy for LineBreakWordHandling

impl Eq for LineBreakWordHandling

impl StructuralPartialEq for LineBreakWordHandling