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<?php declare(strict_types=1); |
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namespace Koded\I18n; |
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use Koded\Stdlib\Config; |
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use function array_combine; |
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use function array_keys; |
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use function array_map; |
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use function ini_set; |
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use function locale_get_default; |
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use function locale_set_default; |
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use function str_replace; |
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use function strtr; |
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use function vsprintf; |
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interface I18nFormatter |
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{ |
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/** |
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* Message formatter for argument replacement in the message. |
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* |
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* @param string $string |
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* @param array $arguments |
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* @return string The message with applied arguments (if any) |
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*/ |
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public function format(string $string, array $arguments): string; |
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} |
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final class StrtrFormatter implements I18nFormatter |
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{ |
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public function format(string $string, array $arguments): string |
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{ |
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return empty($arguments) ? $string : strtr($string, $arguments); |
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} |
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} |
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final class DefaultFormatter implements I18nFormatter |
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{ |
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public function format(string $string, array $arguments): string |
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{ |
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return empty($arguments) ? $string : vsprintf($string, $arguments); |
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} |
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} |
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final class CurlyFormatter implements I18nFormatter |
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{ |
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public function format(string $string, array $arguments): string |
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{ |
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if (empty($arguments)) { |
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return $string; |
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} |
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$keys = $vals = []; |
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foreach ($arguments as $k => $v) { |
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$keys[] = "{{$k}}"; |
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$vals[] = (string) $v; |
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} |
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return str_replace($keys, $vals, $string); |
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} |
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} |
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class I18n |
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{ |
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public const DEFAULT_LOCALE = 'en_US'; |
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/* |
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* Default configuration parameters for all catalogs. |
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* Values are taken by the explicitly set default locale, |
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* or the first loaded catalog instance. |
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*/ |
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private static ?string $catalog = null; |
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private static ?string $formatter = null; |
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private static ?string $directory = null; |
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private static ?string $locale = null; |
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/** @var array<string, I18nCatalog> */ |
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private static array $catalogs = []; |
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// @codeCoverageIgnoreStart |
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private function __construct() {} |
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// @codeCoverageIgnoreEnd |
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public static function translate( |
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string $string, |
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array $arguments = [], |
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string $locale = ''): string |
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{ |
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return self::catalog($locale)->translate('messages', $string, $arguments); |
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} |
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public static function locale(): string |
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{ |
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return self::$locale ??= I18nCatalog::normalizeLocale(locale_get_default()); |
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} |
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/** |
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* @return array{string, I18nCatalog} |
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*/ |
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public static function catalogs(): array |
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{ |
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return self::$catalogs; |
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} |
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static public function catalog(string $locale): I18nCatalog |
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{ |
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empty($locale) and $locale = self::locale(); |
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return self::catalogs()[$locale] ?? self::registerCatalog($locale); |
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} |
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/** |
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* @return array<string, string> |
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*/ |
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public static function languages(): array |
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{ |
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return array_combine( |
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array_keys(self::$catalogs), |
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array_map(static fn(I18nCatalog $c) => $c->language(), self::$catalogs) |
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); |
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} |
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/** |
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* @return array{locale:string, catalogs:<string, array{class: string, formatter:string, dir:string, locale:string}>} |
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*/ |
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public static function info(): array |
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{ |
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$catalogs = []; |
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foreach (self::$catalogs as $locale => $instance) { |
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$catalogs[$locale] = [ |
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'class' => $instance::class, |
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'formatter' => $instance->formatter()::class, |
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'dir' => $instance->directory(), |
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'locale' => $instance->locale(), |
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]; |
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} |
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return [ |
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'locale' => self::$locale, |
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'catalogs' => $catalogs, |
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]; |
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} |
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public static function register( |
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I18nCatalog $catalog, |
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bool $asDefault = false): void |
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{ |
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$locale = $catalog->locale(); |
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if ($asDefault || empty(self::$catalogs)) { |
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self::setDefaultLocale($locale); |
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self::$directory = $catalog->directory(); |
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self::$formatter = $catalog->formatter()::class; |
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self::$catalog = $catalog::class; |
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} |
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self::$catalogs[$locale] = $catalog; |
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} |
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public static function flush(): void |
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{ |
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self::$catalogs = []; |
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self::$directory = null; |
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self::$formatter = null; |
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self::$catalog = null; |
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self::$locale = null; |
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ini_set('intl.default_locale', ''); |
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locale_set_default(''); |
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} |
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private static function registerCatalog(string $locale): I18nCatalog |
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{ |
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return self::$catalogs[$locale] = I18nCatalog::new((new Config)->import([ |
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'translation.locale' => $locale, |
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'translation.dir' => self::$directory, |
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'translation.formatter' => self::$formatter, |
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'translation.catalog' => self::$catalog, |
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])); |
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} |
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private static function setDefaultLocale(string $locale): void |
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{ |
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self::$locale = $locale; |
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ini_set('intl.default_locale', $locale); |
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locale_set_default($locale); |
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} |
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} |
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kodedphp /
i18n
