Struct icu_locid::extensions::unicode::Unicode

pub struct Unicode {
    pub keywords: Keywords,
    pub attributes: Attributes,
}

Unicode Extensions provide information about user preferences in a given locale.

A list of Unicode BCP47 U Extensions as defined in Unicode Locale Identifier specification.

Unicode extensions provide subtags that specify language and/or locale-based behavior or refinements to language tags, according to work done by the Unicode Consortium. (See RFC 6067 for details).

Examples

use icu::locid::extensions::unicode::{key, value};
use icu::locid::Locale;

let loc: Locale =
    "de-u-hc-h12-ca-buddhist".parse().expect("Parsing failed.");

assert_eq!(
    loc.extensions.unicode.keywords.get(&key!("ca")),
    Some(&value!("buddhist"))
);

Fields

keywords: Keywords

The key-value pairs present in this locale extension, with each extension key subtag associated to its provided value subtag.

attributes: Attributes

A canonically ordered sequence of single standalone subtags for this locale extension.

Implementations

impl Unicode

pub const fn new() -> Self

Returns a new empty map of Unicode extensions. Same as default(), but is const.

Examples

use icu::locid::extensions::unicode::Unicode;

assert_eq!(Unicode::new(), Unicode::default());

pub fn is_empty(&self) -> bool

Returns true if there list of keywords and attributes is empty.

Examples

use icu::locid::Locale;

let loc: Locale = "en-US-u-foo".parse().expect("Parsing failed.");

assert!(!loc.extensions.unicode.is_empty());

pub fn clear(&mut self)

Clears all Unicode extension keywords and attributes, effectively removing the Unicode extension.

Example

use icu::locid::Locale;

let mut loc: Locale =
    "und-t-mul-u-hello-ca-buddhist-hc-h12".parse().unwrap();
loc.extensions.unicode.clear();
assert_eq!(loc, "und-t-mul".parse().unwrap());

pub(crate) fn try_from_iter( iter: &mut SubtagIterator<'_> ) -> Result<Self, ParserError>

pub(crate) fn for_each_subtag_str<E, F>(&self, f: &mut F) -> Result<(), E>where F: FnMut(&str) -> Result<(), E>,

Trait Implementations

impl Clone for Unicode

fn clone(&self) -> Unicode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Unicode

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

Formats the value using the given formatter.

impl Default for Unicode

fn default() -> Unicode

Returns the “default value” for a type.

impl Display for Unicode

This trait is implemented for compatibility with fmt!. To create a string, [Writeable::write_to_string] is usually more efficient.

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

Formats the value using the given formatter.

impl Hash for Unicode

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 Unicode

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<Unicode> for Unicode

fn eq(&self, other: &Unicode) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<Unicode> for Unicode

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Writeable for Unicode

fn write_to<W: Write + ?Sized>(&self, sink: &mut W) -> Result

Writes a string to the given sink. Errors from the sink are bubbled up. The default implementation delegates to write_to_parts, and discards any Part annotations.

fn writeable_length_hint(&self) -> LengthHint

Returns a hint for the number of UTF-8 bytes that will be written to the sink.

fn write_to_parts<S>(&self, sink: &mut S) -> Result<(), Error>where S: PartsWrite + ?Sized,

Write bytes and Part annotations to the given sink. Errors from the sink are bubbled up. The default implementation delegates to write_to, and doesn’t produce any Part annotations.

fn write_to_string(&self) -> Cow<'_, str>

Creates a new String with the data from this Writeable. Like ToString, but smaller and faster.

impl Eq for Unicode

impl StructuralEq for Unicode

impl StructuralPartialEq for Unicode