vendor/symfony/translation/Translator.php line 272
<?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\Translation;use Symfony\Component\Config\ConfigCacheFactory;use Symfony\Component\Config\ConfigCacheFactoryInterface;use Symfony\Component\Config\ConfigCacheInterface;use Symfony\Component\Translation\Exception\InvalidArgumentException;use Symfony\Component\Translation\Exception\NotFoundResourceException;use Symfony\Component\Translation\Exception\RuntimeException;use Symfony\Component\Translation\Formatter\IntlFormatterInterface;use Symfony\Component\Translation\Formatter\MessageFormatter;use Symfony\Component\Translation\Formatter\MessageFormatterInterface;use Symfony\Component\Translation\Loader\LoaderInterface;use Symfony\Contracts\Translation\LocaleAwareInterface;use Symfony\Contracts\Translation\TranslatableInterface;use Symfony\Contracts\Translation\TranslatorInterface;// Help opcache.preload discover always-needed symbolsclass_exists(MessageCatalogue::class);/*** @author Fabien Potencier <fabien@symfony.com>*/class Translator implements TranslatorInterface, TranslatorBagInterface, LocaleAwareInterface{/*** @var MessageCatalogueInterface[]*/protected $catalogues = [];private string $locale;/*** @var string[]*/private array $fallbackLocales = [];/*** @var LoaderInterface[]*/private array $loaders = [];private array $resources = [];private MessageFormatterInterface $formatter;private ?string $cacheDir;private bool $debug;private array $cacheVary;private ?ConfigCacheFactoryInterface $configCacheFactory;private array $parentLocales;private bool $hasIntlFormatter;/*** @throws InvalidArgumentException If a locale contains invalid characters*/public function __construct(string $locale, MessageFormatterInterface $formatter = null, string $cacheDir = null, bool $debug = false, array $cacheVary = []){$this->setLocale($locale);$this->formatter = $formatter ??= new MessageFormatter();$this->cacheDir = $cacheDir;$this->debug = $debug;$this->cacheVary = $cacheVary;$this->hasIntlFormatter = $formatter instanceof IntlFormatterInterface;}public function setConfigCacheFactory(ConfigCacheFactoryInterface $configCacheFactory){$this->configCacheFactory = $configCacheFactory;}/*** Adds a Loader.** @param string $format The name of the loader (@see addResource())*/public function addLoader(string $format, LoaderInterface $loader){$this->loaders[$format] = $loader;}/*** Adds a Resource.** @param string $format The name of the loader (@see addLoader())* @param mixed $resource The resource name** @throws InvalidArgumentException If the locale contains invalid characters*/public function addResource(string $format, mixed $resource, string $locale, string $domain = null){$domain ??= 'messages';$this->assertValidLocale($locale);$locale ?: $locale = class_exists(\Locale::class) ? \Locale::getDefault() : 'en';$this->resources[$locale][] = [$format, $resource, $domain];if (\in_array($locale, $this->fallbackLocales)) {$this->catalogues = [];} else {unset($this->catalogues[$locale]);}}public function setLocale(string $locale){$this->assertValidLocale($locale);$this->locale = $locale;}public function getLocale(): string{return $this->locale ?: (class_exists(\Locale::class) ? \Locale::getDefault() : 'en');}/*** Sets the fallback locales.** @param string[] $locales** @throws InvalidArgumentException If a locale contains invalid characters*/public function setFallbackLocales(array $locales){// needed as the fallback locales are linked to the already loaded catalogues$this->catalogues = [];foreach ($locales as $locale) {$this->assertValidLocale($locale);}$this->fallbackLocales = $this->cacheVary['fallback_locales'] = $locales;}/*** Gets the fallback locales.** @internal*/public function getFallbackLocales(): array{return $this->fallbackLocales;}public function trans(?string $id, array $parameters = [], string $domain = null, string $locale = null): string{if (null === $id || '' === $id) {return '';}$domain ??= 'messages';$catalogue = $this->getCatalogue($locale);$locale = $catalogue->getLocale();while (!$catalogue->defines($id, $domain)) {if ($cat = $catalogue->getFallbackCatalogue()) {$catalogue = $cat;$locale = $catalogue->getLocale();} else {break;}}$parameters = array_map(function ($parameter) use ($locale) {return $parameter instanceof TranslatableInterface ? $parameter->trans($this, $locale) : $parameter;}, $parameters);$len = \strlen(MessageCatalogue::INTL_DOMAIN_SUFFIX);if ($this->hasIntlFormatter&& ($catalogue->defines($id, $domain.MessageCatalogue::INTL_DOMAIN_SUFFIX)|| (\strlen($domain) > $len && 0 === substr_compare($domain, MessageCatalogue::INTL_DOMAIN_SUFFIX, -$len, $len)))) {return $this->formatter->formatIntl($catalogue->get($id, $domain), $locale, $parameters);}return $this->formatter->format($catalogue->get($id, $domain), $locale, $parameters);}public function getCatalogue(string $locale = null): MessageCatalogueInterface{if (!$locale) {$locale = $this->getLocale();} else {$this->assertValidLocale($locale);}if (!isset($this->catalogues[$locale])) {$this->loadCatalogue($locale);}return $this->catalogues[$locale];}public function getCatalogues(): array{return array_values($this->catalogues);}/*** Gets the loaders.** @return LoaderInterface[]*/protected function getLoaders(): array{return $this->loaders;}protected function loadCatalogue(string $locale){if (null === $this->cacheDir) {$this->initializeCatalogue($locale);} else {$this->initializeCacheCatalogue($locale);}}protected function initializeCatalogue(string $locale){$this->assertValidLocale($locale);try {$this->doLoadCatalogue($locale);} catch (NotFoundResourceException $e) {if (!$this->computeFallbackLocales($locale)) {throw $e;}}$this->loadFallbackCatalogues($locale);}private function initializeCacheCatalogue(string $locale): void{if (isset($this->catalogues[$locale])) {/* Catalogue already initialized. */return;}$this->assertValidLocale($locale);$cache = $this->getConfigCacheFactory()->cache($this->getCatalogueCachePath($locale),function (ConfigCacheInterface $cache) use ($locale) {$this->dumpCatalogue($locale, $cache);});if (isset($this->catalogues[$locale])) {/* Catalogue has been initialized as it was written out to cache. */return;}/* Read catalogue from cache. */$this->catalogues[$locale] = include $cache->getPath();}private function dumpCatalogue(string $locale, ConfigCacheInterface $cache): void{$this->initializeCatalogue($locale);$fallbackContent = $this->getFallbackContent($this->catalogues[$locale]);$content = sprintf(<<<EOF<?phpuse Symfony\Component\Translation\MessageCatalogue;\$catalogue = new MessageCatalogue('%s', %s);%sreturn \$catalogue;EOF,$locale,var_export($this->getAllMessages($this->catalogues[$locale]), true),$fallbackContent);$cache->write($content, $this->catalogues[$locale]->getResources());}private function getFallbackContent(MessageCatalogue $catalogue): string{$fallbackContent = '';$current = '';$replacementPattern = '/[^a-z0-9_]/i';$fallbackCatalogue = $catalogue->getFallbackCatalogue();while ($fallbackCatalogue) {$fallback = $fallbackCatalogue->getLocale();$fallbackSuffix = ucfirst(preg_replace($replacementPattern, '_', $fallback));$currentSuffix = ucfirst(preg_replace($replacementPattern, '_', $current));$fallbackContent .= sprintf(<<<'EOF'$catalogue%s = new MessageCatalogue('%s', %s);$catalogue%s->addFallbackCatalogue($catalogue%s);EOF,$fallbackSuffix,$fallback,var_export($this->getAllMessages($fallbackCatalogue), true),$currentSuffix,$fallbackSuffix);$current = $fallbackCatalogue->getLocale();$fallbackCatalogue = $fallbackCatalogue->getFallbackCatalogue();}return $fallbackContent;}private function getCatalogueCachePath(string $locale): string{return $this->cacheDir.'/catalogue.'.$locale.'.'.strtr(substr(base64_encode(hash('sha256', serialize($this->cacheVary), true)), 0, 7), '/', '_').'.php';}/*** @internal*/protected function doLoadCatalogue(string $locale): void{$this->catalogues[$locale] = new MessageCatalogue($locale);if (isset($this->resources[$locale])) {foreach ($this->resources[$locale] as $resource) {if (!isset($this->loaders[$resource[0]])) {if (\is_string($resource[1])) {throw new RuntimeException(sprintf('No loader is registered for the "%s" format when loading the "%s" resource.', $resource[0], $resource[1]));}throw new RuntimeException(sprintf('No loader is registered for the "%s" format.', $resource[0]));}$this->catalogues[$locale]->addCatalogue($this->loaders[$resource[0]]->load($resource[1], $locale, $resource[2]));}}}private function loadFallbackCatalogues(string $locale): void{$current = $this->catalogues[$locale];foreach ($this->computeFallbackLocales($locale) as $fallback) {if (!isset($this->catalogues[$fallback])) {$this->initializeCatalogue($fallback);}$fallbackCatalogue = new MessageCatalogue($fallback, $this->getAllMessages($this->catalogues[$fallback]));foreach ($this->catalogues[$fallback]->getResources() as $resource) {$fallbackCatalogue->addResource($resource);}$current->addFallbackCatalogue($fallbackCatalogue);$current = $fallbackCatalogue;}}protected function computeFallbackLocales(string $locale){$this->parentLocales ??= json_decode(file_get_contents(__DIR__.'/Resources/data/parents.json'), true);$originLocale = $locale;$locales = [];while ($locale) {$parent = $this->parentLocales[$locale] ?? null;if ($parent) {$locale = 'root' !== $parent ? $parent : null;} elseif (\function_exists('locale_parse')) {$localeSubTags = locale_parse($locale);$locale = null;if (1 < \count($localeSubTags)) {array_pop($localeSubTags);$locale = locale_compose($localeSubTags) ?: null;}} elseif ($i = strrpos($locale, '_') ?: strrpos($locale, '-')) {$locale = substr($locale, 0, $i);} else {$locale = null;}if (null !== $locale) {$locales[] = $locale;}}foreach ($this->fallbackLocales as $fallback) {if ($fallback === $originLocale) {continue;}$locales[] = $fallback;}return array_unique($locales);}/*** Asserts that the locale is valid, throws an Exception if not.** @throws InvalidArgumentException If the locale contains invalid characters*/protected function assertValidLocale(string $locale){if (!preg_match('/^[a-z0-9@_\\.\\-]*$/i', $locale)) {throw new InvalidArgumentException(sprintf('Invalid "%s" locale.', $locale));}}/*** Provides the ConfigCache factory implementation, falling back to a* default implementation if necessary.*/private function getConfigCacheFactory(): ConfigCacheFactoryInterface{$this->configCacheFactory ??= new ConfigCacheFactory($this->debug);return $this->configCacheFactory;}private function getAllMessages(MessageCatalogueInterface $catalogue): array{$allMessages = [];foreach ($catalogue->all() as $domain => $messages) {if ($intlMessages = $catalogue->all($domain.MessageCatalogue::INTL_DOMAIN_SUFFIX)) {$allMessages[$domain.MessageCatalogue::INTL_DOMAIN_SUFFIX] = $intlMessages;$messages = array_diff_key($messages, $intlMessages);}if ($messages) {$allMessages[$domain] = $messages;}}return $allMessages;}}