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<?php |
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declare(strict_types=1); |
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namespace Spiral\Translator; |
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use Psr\EventDispatcher\EventDispatcherInterface; |
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use Spiral\Core\Container\SingletonInterface; |
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use Spiral\Translator\Config\TranslatorConfig; |
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use Spiral\Translator\Event\LocaleUpdated; |
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use Spiral\Translator\Exception\LocaleException; |
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use Spiral\Translator\Exception\PluralizationException; |
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use Symfony\Component\Translation\IdentityTranslator; |
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/** |
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* Implementation of Symfony\TranslatorInterface with memory caching, automatic message |
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* registration and bundle/domain grouping. |
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*/ |
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final class Translator implements TranslatorInterface, SingletonInterface |
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{ |
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private string $locale; |
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public function __construct( |
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private readonly TranslatorConfig $config, |
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private readonly CatalogueManagerInterface $catalogueManager, |
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/** @internal */ |
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private readonly IdentityTranslator $identityTranslator = new IdentityTranslator(), |
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private readonly ?EventDispatcherInterface $dispatcher = null, |
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) { |
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$this->locale = $this->config->getDefaultLocale(); |
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$this->catalogueManager->load($this->locale); |
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} |
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public function getDomain(string $bundle): string |
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{ |
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return $this->config->resolveDomain($bundle); |
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} |
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/** |
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* @throws LocaleException |
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*/ |
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public function setLocale(string $locale): void |
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{ |
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if (!$this->catalogueManager->has($locale)) { |
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throw new LocaleException($locale); |
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} |
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$this->locale = $locale; |
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$this->catalogueManager->load($locale); |
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$this->dispatcher?->dispatch(new LocaleUpdated($locale)); |
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} |
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public function getLocale(): string |
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{ |
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return $this->locale; |
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} |
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public function getCatalogueManager(): CatalogueManagerInterface |
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{ |
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return $this->catalogueManager; |
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} |
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/** |
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* Parameters will be embedded into string using { and } braces. |
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* |
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* @throws LocaleException |
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*/ |
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public function trans(string $id, array $parameters = [], string $domain = null, string $locale = null): string |
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{ |
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$domain = $domain ?? $this->config->getDefaultDomain(); |
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$locale = $locale ?? $this->locale; |
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$message = $this->get($locale, $domain, $id); |
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return self::interpolate($message, $parameters); |
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} |
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/** |
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* Default symfony pluralizer to be used. Parameters will be embedded into string using { and } |
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* braces. In addition you can use forced parameter {n} which contain formatted number value. |
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* |
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* @throws LocaleException |
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* @throws PluralizationException |
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*/ |
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public function transChoice( |
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string $id, |
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string|int $number, |
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array $parameters = [], |
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string $domain = null, |
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string $locale = null |
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): string { |
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$domain = $domain ?? $this->config->getDefaultDomain(); |
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$locale = $locale ?? $this->locale; |
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try { |
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$message = $this->get($locale, $domain, $id); |
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$pluralized = $this->identityTranslator->trans( |
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$message, |
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['%count%' => $number], |
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null, |
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$locale |
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); |
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} catch (\InvalidArgumentException $e) { |
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//Wrapping into more explanatory exception |
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throw new PluralizationException($e->getMessage(), $e->getCode(), $e); |
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} |
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if (empty($parameters['n']) && is_numeric($number)) { |
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$parameters['n'] = $number; |
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} |
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return self::interpolate($pluralized, $parameters); |
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} |
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/** |
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* Interpolate string with given parameters, used by many spiral components. |
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* |
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* Input: Hello {name}! Good {time}! + ['name' => 'Member', 'time' => 'day'] |
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* Output: Hello Member! Good Day! |
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* |
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* @param array $values Arguments (key => value). Will skip unknown names. |
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* @param string $prefix Placeholder prefix, "{" by default. |
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* @param string $postfix Placeholder postfix, "}" by default. |
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*/ |
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public static function interpolate( |
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string $string, |
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array $values, |
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string $prefix = '{', |
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string $postfix = '}' |
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): string { |
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$replaces = []; |
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foreach ($values as $key => $value) { |
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$value = (\is_array($value) || $value instanceof \Closure) ? '' : $value; |
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if (\is_object($value)) { |
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if (\method_exists($value, '__toString')) { |
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$value = $value->__toString(); |
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} else { |
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$value = ''; |
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} |
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} |
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$replaces[$prefix . $key . $postfix] = $value; |
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} |
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return \strtr($string, $replaces); |
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} |
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/** |
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* Check if string has translation braces [[ and ]]. |
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*/ |
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public static function isMessage(string $string): bool |
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{ |
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return \substr($string, 0, 2) == self::I18N_PREFIX |
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&& \substr($string, -2) == self::I18N_POSTFIX; |
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} |
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/** |
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* Get translation message from the locale bundle or fallback to default locale. |
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*/ |
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protected function get(string &$locale, string $domain, string $string): string |
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{ |
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if ($this->catalogueManager->get($locale)->has($domain, $string)) { |
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return $this->catalogueManager->get($locale)->get($domain, $string); |
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} |
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$locale = $this->config->getFallbackLocale(); |
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if ($this->catalogueManager->get($locale)->has($domain, $string)) { |
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return $this->catalogueManager->get($locale)->get($domain, $string); |
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} |
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// we can automatically register message |
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if ($this->config->isAutoRegisterMessages()) { |
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$this->catalogueManager->get($locale)->set($domain, $string, $string); |
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$this->catalogueManager->save($locale); |
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} |
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// Unable to find translation |
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return $string; |
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} |
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} |
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spiral /
framework
