311 lines
8.7 KiB
PHP
311 lines
8.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Polyfill\Intl\Icu;
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use Symfony\Polyfill\Intl\Icu\Exception\MethodNotImplementedException;
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/**
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* Replacement for PHP's native {@link \Locale} class.
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*
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* The only methods supported in this class are `getDefault` and `canonicalize`.
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* All other methods will throw an exception when used.
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*
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* @author Eriksen Costa <eriksen.costa@infranology.com.br>
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* @author Bernhard Schussek <bschussek@gmail.com>
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*
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* @internal
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*/
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abstract class Locale
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{
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public const DEFAULT_LOCALE = null;
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/* Locale method constants */
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public const ACTUAL_LOCALE = 0;
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public const VALID_LOCALE = 1;
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/* Language tags constants */
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public const LANG_TAG = 'language';
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public const EXTLANG_TAG = 'extlang';
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public const SCRIPT_TAG = 'script';
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public const REGION_TAG = 'region';
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public const VARIANT_TAG = 'variant';
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public const GRANDFATHERED_LANG_TAG = 'grandfathered';
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public const PRIVATE_TAG = 'private';
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/**
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* Not supported. Returns the best available locale based on HTTP "Accept-Language" header according to RFC 2616.
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*
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* @return string The corresponding locale code
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*
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* @see https://php.net/locale.acceptfromhttp
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*
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* @throws MethodNotImplementedException
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*/
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public static function acceptFromHttp(string $header)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Returns a canonicalized locale string.
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*
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* This polyfill doesn't implement the full-spec algorithm. It only
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* canonicalizes locale strings handled by the `LocaleBundle` class.
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*
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* @return string
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*/
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public static function canonicalize(string $locale)
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{
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if ('' === $locale || '.' === $locale[0]) {
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return self::getDefault();
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}
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if (!preg_match('/^([a-z]{2})[-_]([a-z]{2})(?:([a-z]{2})(?:[-_]([a-z]{2}))?)?(?:\..*)?$/i', $locale, $m)) {
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return $locale;
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}
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if (!empty($m[4])) {
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return strtolower($m[1]).'_'.ucfirst(strtolower($m[2].$m[3])).'_'.strtoupper($m[4]);
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}
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if (!empty($m[3])) {
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return strtolower($m[1]).'_'.ucfirst(strtolower($m[2].$m[3]));
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}
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return strtolower($m[1]).'_'.strtoupper($m[2]);
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}
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/**
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* Not supported. Returns a correctly ordered and delimited locale code.
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*
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* @return string The corresponding locale code
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*
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* @see https://php.net/locale.composelocale
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*
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* @throws MethodNotImplementedException
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*/
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public static function composeLocale(array $subtags)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Checks if a language tag filter matches with locale.
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*
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* @return string The corresponding locale code
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*
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* @see https://php.net/locale.filtermatches
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*
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* @throws MethodNotImplementedException
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*/
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public static function filterMatches(string $languageTag, string $locale, bool $canonicalize = false)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the variants for the input locale.
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*
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* @return array The locale variants
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*
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* @see https://php.net/locale.getallvariants
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*
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* @throws MethodNotImplementedException
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*/
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public static function getAllVariants(string $locale)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Returns the default locale.
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*
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* @return string The default locale code. Always returns 'en'
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*
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* @see https://php.net/locale.getdefault
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*/
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public static function getDefault()
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{
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return 'en';
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}
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/**
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* Not supported. Returns the localized display name for the locale language.
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*
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* @return string The localized language display name
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*
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* @see https://php.net/locale.getdisplaylanguage
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*
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* @throws MethodNotImplementedException
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*/
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public static function getDisplayLanguage(string $locale, string $displayLocale = null)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the localized display name for the locale.
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*
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* @return string The localized locale display name
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*
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* @see https://php.net/locale.getdisplayname
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*
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* @throws MethodNotImplementedException
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*/
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public static function getDisplayName(string $locale, string $displayLocale = null)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the localized display name for the locale region.
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*
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* @return string The localized region display name
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*
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* @see https://php.net/locale.getdisplayregion
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*
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* @throws MethodNotImplementedException
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*/
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public static function getDisplayRegion(string $locale, string $displayLocale = null)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the localized display name for the locale script.
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*
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* @return string The localized script display name
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*
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* @see https://php.net/locale.getdisplayscript
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*
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* @throws MethodNotImplementedException
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*/
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public static function getDisplayScript(string $locale, string $displayLocale = null)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the localized display name for the locale variant.
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*
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* @return string The localized variant display name
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*
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* @see https://php.net/locale.getdisplayvariant
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*
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* @throws MethodNotImplementedException
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*/
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public static function getDisplayVariant(string $locale, string $displayLocale = null)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the keywords for the locale.
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*
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* @return array Associative array with the extracted variants
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*
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* @see https://php.net/locale.getkeywords
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*
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* @throws MethodNotImplementedException
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*/
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public static function getKeywords(string $locale)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the primary language for the locale.
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*
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* @return string|null The extracted language code or null in case of error
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*
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* @see https://php.net/locale.getprimarylanguage
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*
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* @throws MethodNotImplementedException
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*/
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public static function getPrimaryLanguage(string $locale)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the region for the locale.
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*
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* @return string|null The extracted region code or null if not present
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*
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* @see https://php.net/locale.getregion
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*
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* @throws MethodNotImplementedException
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*/
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public static function getRegion(string $locale)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the script for the locale.
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*
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* @return string|null The extracted script code or null if not present
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*
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* @see https://php.net/locale.getscript
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*
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* @throws MethodNotImplementedException
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*/
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public static function getScript(string $locale)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns the closest language tag for the locale.
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*
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* @see https://php.net/locale.lookup
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*
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* @throws MethodNotImplementedException
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*/
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public static function lookup(array $languageTag, string $locale, bool $canonicalize = false, string $defaultLocale = null)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Returns an associative array of locale identifier subtags.
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*
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* @return array Associative array with the extracted subtags
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*
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* @see https://php.net/locale.parselocale
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*
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* @throws MethodNotImplementedException
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*/
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public static function parseLocale(string $locale)
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{
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throw new MethodNotImplementedException(__METHOD__);
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}
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/**
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* Not supported. Sets the default runtime locale.
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*
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* @return bool true on success or false on failure
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*
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* @see https://php.net/locale.setdefault
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*
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* @throws MethodNotImplementedException
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*/
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public static function setDefault(string $locale)
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{
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if ('en' !== $locale) {
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throw new MethodNotImplementedException(__METHOD__);
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}
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return true;
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}
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}
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