* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Contracts\Translation; use Symfony\Component\Translation\Exception\InvalidArgumentException; /** * A trait to help implement TranslatorInterface and LocaleAwareInterface. * * @author Fabien Potencier */ trait TranslatorTrait { private ?string $locale = null; public function setLocale(string $locale) { $this->locale = $locale; } public function getLocale(): string { return $this->locale ?: (class_exists(\Locale::class) ? \Locale::getDefault() : 'en'); } public function trans(?string $id, array $parameters = [], string $domain = null, string $locale = null): string { if (null === $id || '' === $id) { return ''; } if (!isset($parameters['%count%']) || !is_numeric($parameters['%count%'])) { return strtr($id, $parameters); } $number = (float) $parameters['%count%']; $locale = $locale ?: $this->getLocale(); $parts = []; if (preg_match('/^\|++$/', $id)) { $parts = explode('|', $id); } elseif (preg_match_all('/(?:\|\||[^\|])++/', $id, $matches)) { $parts = $matches[0]; } $intervalRegexp = <<<'EOF' /^(?P ({\s* (\-?\d+(\.\d+)?[\s*,\s*\-?\d+(\.\d+)?]*) \s*}) | (?P[\[\]]) \s* (?P-Inf|\-?\d+(\.\d+)?) \s*,\s* (?P\+?Inf|\-?\d+(\.\d+)?) \s* (?P[\[\]]) )\s*(?P.*?)$/xs EOF; $standardRules = []; foreach ($parts as $part) { $part = trim(str_replace('||', '|', $part)); // try to match an explicit rule, then fallback to the standard ones if (preg_match($intervalRegexp, $part, $matches)) { if ($matches[2]) { foreach (explode(',', $matches[3]) as $n) { if ($number == $n) { return strtr($matches['message'], $parameters); } } } else { $leftNumber = '-Inf' === $matches['left'] ? -\INF : (float) $matches['left']; $rightNumber = is_numeric($matches['right']) ? (float) $matches['right'] : \INF; if (('[' === $matches['left_delimiter'] ? $number >= $leftNumber : $number > $leftNumber) && (']' === $matches['right_delimiter'] ? $number <= $rightNumber : $number < $rightNumber) ) { return strtr($matches['message'], $parameters); } } } elseif (preg_match('/^\w+\:\s*(.*?)$/', $part, $matches)) { $standardRules[] = $matches[1]; } else { $standardRules[] = $part; } } $position = $this->getPluralizationRule($number, $locale); if (!isset($standardRules[$position])) { // when there's exactly one rule given, and that rule is a standard // rule, use this rule if (1 === \count($parts) && isset($standardRules[0])) { return strtr($standardRules[0], $parameters); } $message = sprintf('Unable to choose a translation for "%s" with locale "%s" for value "%d". Double check that this translation has the correct plural options (e.g. "There is one apple|There are %%count%% apples").', $id, $locale, $number); if (class_exists(InvalidArgumentException::class)) { throw new InvalidArgumentException($message); } throw new \InvalidArgumentException($message); } return strtr($standardRules[$position], $parameters); } /** * Returns the plural position to use for the given locale and number. * * The plural rules are derived from code of the Zend Framework (2010-09-25), * which is subject to the new BSD license (http://framework.zend.com/license/new-bsd). * Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) */ private function getPluralizationRule(float $number, string $locale): int { $number = abs($number); return match ('pt_BR' !== $locale && 'en_US_POSIX' !== $locale && \strlen($locale) > 3 ? substr($locale, 0, strrpos($locale, '_')) : $locale) { 'af', 'bn', 'bg', 'ca', 'da', 'de', 'el', 'en', 'en_US_POSIX', 'eo', 'es', 'et', 'eu', 'fa', 'fi', 'fo', 'fur', 'fy', 'gl', 'gu', 'ha', 'he', 'hu', 'is', 'it', 'ku', 'lb', 'ml', 'mn', 'mr', 'nah', 'nb', 'ne', 'nl', 'nn', 'no', 'oc', 'om', 'or', 'pa', 'pap', 'ps', 'pt', 'so', 'sq', 'sv', 'sw', 'ta', 'te', 'tk', 'ur', 'zu' => (1 == $number) ? 0 : 1, 'am', 'bh', 'fil', 'fr', 'gun', 'hi', 'hy', 'ln', 'mg', 'nso', 'pt_BR', 'ti', 'wa' => ($number < 2) ? 0 : 1, 'be', 'bs', 'hr', 'ru', 'sh', 'sr', 'uk' => ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2), 'cs', 'sk' => (1 == $number) ? 0 : ((($number >= 2) && ($number <= 4)) ? 1 : 2), 'ga' => (1 == $number) ? 0 : ((2 == $number) ? 1 : 2), 'lt' => ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2), 'sl' => (1 == $number % 100) ? 0 : ((2 == $number % 100) ? 1 : (((3 == $number % 100) || (4 == $number % 100)) ? 2 : 3)), 'mk' => (1 == $number % 10) ? 0 : 1, 'mt' => (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 1) && ($number % 100 < 11))) ? 1 : ((($number % 100 > 10) && ($number % 100 < 20)) ? 2 : 3)), 'lv' => (0 == $number) ? 0 : (((1 == $number % 10) && (11 != $number % 100)) ? 1 : 2), 'pl' => (1 == $number) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 12) || ($number % 100 > 14))) ? 1 : 2), 'cy' => (1 == $number) ? 0 : ((2 == $number) ? 1 : (((8 == $number) || (11 == $number)) ? 2 : 3)), 'ro' => (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 0) && ($number % 100 < 20))) ? 1 : 2), 'ar' => (0 == $number) ? 0 : ((1 == $number) ? 1 : ((2 == $number) ? 2 : ((($number % 100 >= 3) && ($number % 100 <= 10)) ? 3 : ((($number % 100 >= 11) && ($number % 100 <= 99)) ? 4 : 5)))), default => 0, }; } }