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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Intl\Locale;
use Symfony\Component\Intl\Exception\MethodNotImplementedException;
/**
* Replacement for PHP's native {@link \Locale} class.
*
* The only methods supported in this class are `getDefault` and `canonicalize`.
* All other methods will throw an exception when used.
*
* @author Eriksen Costa <[email protected]>
* @author Bernhard Schussek <[email protected]>
*
* @internal
*
* @deprecated since Symfony 5.3, use symfony/polyfill-intl-icu ^1.21 instead
*/
abstract class Locale
{
public const DEFAULT_LOCALE = null;
/* Locale method constants */
public const ACTUAL_LOCALE = 0;
public const VALID_LOCALE = 1;
/* Language tags constants */
public const LANG_TAG = 'language';
public const EXTLANG_TAG = 'extlang';
public const SCRIPT_TAG = 'script';
public const REGION_TAG = 'region';
public const VARIANT_TAG = 'variant';
public const GRANDFATHERED_LANG_TAG = 'grandfathered';
public const PRIVATE_TAG = 'private';
/**
* Not supported. Returns the best available locale based on HTTP "Accept-Language" header according to RFC 2616.
*
* @param string $header The string containing the "Accept-Language" header value
*
* @return string
*
* @see https://php.net/locale.acceptfromhttp
*
* @throws MethodNotImplementedException
*/
public static function acceptFromHttp(string $header)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Returns a canonicalized locale string.
*
* This polyfill doesn't implement the full-spec algorithm. It only
* canonicalizes locale strings handled by the `LocaleBundle` class.
*
* @return string
*/
public static function canonicalize(string $locale)
{
if ('' === $locale || '.' === $locale[0]) {
return self::getDefault();
}
if (!preg_match('/^([a-z]{2})[-_]([a-z]{2})(?:([a-z]{2})(?:[-_]([a-z]{2}))?)?(?:\..*)?$/i', $locale, $m)) {
return $locale;
}
if (!empty($m[4])) {
return strtolower($m[1]).'_'.ucfirst(strtolower($m[2].$m[3])).'_'.strtoupper($m[4]);
}
if (!empty($m[3])) {
return strtolower($m[1]).'_'.ucfirst(strtolower($m[2].$m[3]));
}
return strtolower($m[1]).'_'.strtoupper($m[2]);
}
/**
* Not supported. Returns a correctly ordered and delimited locale code.
*
* @param array $subtags A keyed array where the keys identify the particular locale code subtag
*
* @return string
*
* @see https://php.net/locale.composelocale
*
* @throws MethodNotImplementedException
*/
public static function composeLocale(array $subtags)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Checks if a language tag filter matches with locale.
*
* @param string $langtag The language tag to check
* @param string $locale The language range to check against
*
* @return string
*
* @see https://php.net/locale.filtermatches
*
* @throws MethodNotImplementedException
*/
public static function filterMatches(string $langtag, string $locale, bool $canonicalize = false)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the variants for the input locale.
*
* @param string $locale The locale to extract the variants from
*
* @return array
*
* @see https://php.net/locale.getallvariants
*
* @throws MethodNotImplementedException
*/
public static function getAllVariants(string $locale)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Returns the default locale, which is always "en".
*
* @return string
*
* @see https://php.net/locale.getdefault
*/
public static function getDefault()
{
return 'en';
}
/**
* Not supported. Returns the localized display name for the locale language.
*
* @param string $locale The locale code to return the display language from
* @param string|null $inLocale Optional format locale code to use to display the language name
*
* @return string
*
* @see https://php.net/locale.getdisplaylanguage
*
* @throws MethodNotImplementedException
*/
public static function getDisplayLanguage(string $locale, string $inLocale = null)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the localized display name for the locale.
*
* @param string $locale The locale code to return the display locale name from
* @param string|null $inLocale Optional format locale code to use to display the locale name
*
* @return string
*
* @see https://php.net/locale.getdisplayname
*
* @throws MethodNotImplementedException
*/
public static function getDisplayName(string $locale, string $inLocale = null)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the localized display name for the locale region.
*
* @param string $locale The locale code to return the display region from
* @param string|null $inLocale Optional format locale code to use to display the region name
*
* @return string
*
* @see https://php.net/locale.getdisplayregion
*
* @throws MethodNotImplementedException
*/
public static function getDisplayRegion(string $locale, string $inLocale = null)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the localized display name for the locale script.
*
* @param string $locale The locale code to return the display script from
* @param string|null $inLocale Optional format locale code to use to display the script name
*
* @return string
*
* @see https://php.net/locale.getdisplayscript
*
* @throws MethodNotImplementedException
*/
public static function getDisplayScript(string $locale, string $inLocale = null)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the localized display name for the locale variant.
*
* @param string $locale The locale code to return the display variant from
* @param string|null $inLocale Optional format locale code to use to display the variant name
*
* @return string
*
* @see https://php.net/locale.getdisplayvariant
*
* @throws MethodNotImplementedException
*/
public static function getDisplayVariant(string $locale, string $inLocale = null)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the keywords for the locale.
*
* @param string $locale The locale code to extract the keywords from
*
* @return array
*
* @see https://php.net/locale.getkeywords
*
* @throws MethodNotImplementedException
*/
public static function getKeywords(string $locale)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the primary language for the locale.
*
* @param string $locale The locale code to extract the language code from
*
* @return string|null
*
* @see https://php.net/locale.getprimarylanguage
*
* @throws MethodNotImplementedException
*/
public static function getPrimaryLanguage(string $locale)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the region for the locale.
*
* @param string $locale The locale code to extract the region code from
*
* @return string|null
*
* @see https://php.net/locale.getregion
*
* @throws MethodNotImplementedException
*/
public static function getRegion(string $locale)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the script for the locale.
*
* @param string $locale The locale code to extract the script code from
*
* @return string|null
*
* @see https://php.net/locale.getscript
*
* @throws MethodNotImplementedException
*/
public static function getScript(string $locale)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns the closest language tag for the locale.
*
* @param array $langtag A list of the language tags to compare to locale
* @param string $locale The locale to use as the language range when matching
* @param bool $canonicalize If true, the arguments will be converted to canonical form before matching
* @param string|null $default The locale to use if no match is found
*
* @see https://php.net/locale.lookup
*
* @throws MethodNotImplementedException
*/
public static function lookup(array $langtag, string $locale, bool $canonicalize = false, string $default = null)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Returns an associative array of locale identifier subtags.
*
* @param string $locale The locale code to extract the subtag array from
*
* @return array
*
* @see https://php.net/locale.parselocale
*
* @throws MethodNotImplementedException
*/
public static function parseLocale(string $locale)
{
throw new MethodNotImplementedException(__METHOD__);
}
/**
* Not supported. Sets the default runtime locale.
*
* @return bool
*
* @see https://php.net/locale.setdefault
*
* @throws MethodNotImplementedException
*/
public static function setDefault(string $locale)
{
if ('en' !== $locale) {
throw new MethodNotImplementedException(__METHOD__);
}
return true;
}
}