Struct rocket_accept_language::Locale

pub struct Locale { /* fields omitted */ }

A Locale object.

Locale object stores information encoded in a language tag and provides methods allowing for parsing, serializing and manipulating locale fields.

All data is validated and canonicalized on input, which means that the output is always canonicalized.

Currently supported subtags are:

• language (e.g. "en")
• script (e.g. "Latn")
• region (e.g. "US")
• variants (e.g. "windows")
• extensions (e.g. "-u-ca-gregorian-hc-h12")

The API parses correctly the remaining fields of the BCP47 language tag, but at the moment does not provide any API for operating on them.

Examples

Parsing

Locale supports a From trait from String and &str:

use fluent_locale::Locale;

let loc = Locale::from("en-latn-us");

assert_eq!(loc.to_string(), "en-Latn-US");

Locale can also accept options, similarly to ECMA402 Intl.Locale:

use fluent_locale::Locale;
use std::collections::BTreeMap;

let mut opts = BTreeMap::new();
opts.insert("hour-cycle", "h12");
let loc = Locale::new("en", Some(opts)).unwrap();

assert_eq!(loc.to_string(), "en-u-hc-h12");

Serializing

Locale supports Display trait allowing for:

use fluent_locale::Locale;
use std::collections::BTreeMap;

let mut opts = BTreeMap::new();
opts.insert("hour-cycle", "h12");
let loc = Locale::new("en-Latn-US-u-hc-h23", Some(opts)).unwrap();

assert_eq!(loc.to_string(), "en-Latn-US-u-hc-h12");

Manipulating

During the lifetime of Locale, its fields can be modified via getter/setter methods:

use fluent_locale::Locale;

let mut loc = Locale::from("en-Latn-US");
loc.set_region("GB").unwrap();

assert_eq!(loc.to_string(), "en-Latn-GB");

Methods

impl Locale

pub fn new(
    loc_str: &str,
    opts: Option<BTreeMap<&str, &str>>
) -> Result<Locale, Error>

pub fn set_language(&mut self, value: &str) -> Result<(), Error>

pub fn get_language(&self) -> &str

pub fn set_script(&mut self, value: &str) -> Result<(), Error>

pub fn get_script(&self) -> &str

pub fn set_region(&mut self, value: &str) -> Result<(), Error>

pub fn get_region(&self) -> &str

pub fn add_variant(&mut self, value: String)

pub fn remove_variant(&mut self, value: String)

pub fn get_variants(&self) -> Vec<&String>

pub fn clear_variants(&mut self)

pub fn has_privateuse(&self) -> bool

pub fn get_extensions(&self) -> BTreeMap<String, &BTreeMap<String, String>>

pub fn add_extension(&mut self, ext_name: String, key: String, value: String)

pub fn matches(
    &self,
    other: &Locale,
    available_range: bool,
    requested_range: bool
) -> bool

Trait Implementations

impl Default for Locale

fn default() -> Locale

Returns the "default value" for a type.

impl Clone for Locale

fn clone(&self) -> Locale

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Locale

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

Formats the value using the given formatter.

impl Display for Locale

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

Formats the value using the given formatter.

impl PartialEq<Locale> for Locale

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

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

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

This method tests for !=.

impl<'a> From<&'a str> for Locale

fn from(s: &'a str) -> Locale

Performs the conversion.

impl From<String> for Locale

fn from(s: String) -> Locale

Performs the conversion.