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Languages.php
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Languages.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Intl;
use Symfony\Component\Intl\Exception\MissingResourceException;
/**
* Gives access to language-related ICU data.
*
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Roland Franssen <franssen.roland@gmail.com>
*/
final class Languages extends ResourceBundle
{
/**
* Returns all available languages as two-letter codes.
*
* Languages are returned as lowercase ISO 639-1 two-letter language codes.
* For languages that don't have a two-letter code, the ISO 639-2
* three-letter code is used instead.
*
* A full table of ISO 639 language codes can be found here:
* http://www-01.sil.org/iso639-3/codes.asp
*
* @return string[] an array of canonical ISO 639-1 language codes
*/
public static function getLanguageCodes(): array
{
return self::readEntry(['Languages'], 'meta');
}
public static function exists(string $language): bool
{
try {
self::readEntry(['Names', $language]);
return true;
} catch (MissingResourceException $e) {
return false;
}
}
/**
* Get language name from alpha2 code.
*
* @throws MissingResourceException if the language code does not exists
*/
public static function getName(string $language, string $displayLocale = null): string
{
return self::readEntry(['Names', $language], $displayLocale);
}
/**
* Get list of language names indexed with alpha2 codes as keys.
*
* @return string[]
*/
public static function getNames(string $displayLocale = null): array
{
return self::asort(self::readEntry(['Names'], $displayLocale), $displayLocale);
}
/**
* Returns the ISO 639-2 three-letter code of a language, given a two-letter code.
*
* @throws MissingResourceException if the language has no corresponding three-letter code
*/
public static function getAlpha3Code(string $language): string
{
return self::readEntry(['Alpha2ToAlpha3', $language], 'meta');
}
protected static function getPath(): string
{
return Intl::getDataDirectory().'/'.Intl::LANGUAGE_DIR;
}
}