* * 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 $locale; /** * {@inheritdoc} */ public function setLocale(string $locale) { $this->locale = $locale; } /** * {@inheritdoc} * * @return string */ public function getLocale() { return $this->locale ?: (class_exists(\Locale::class) ? \Locale::getDefault() : 'en'); } /** * {@inheritdoc} */ 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); switch ('pt_BR' !== $locale && 'en_US_POSIX' !== $locale && \strlen($locale) > 3 ? substr($locale, 0, strrpos($locale, '_')) : $locale) { case 'af': case 'bn': case 'bg': case 'ca': case 'da': case 'de': case 'el': case 'en': case 'en_US_POSIX': case 'eo': case 'es': case 'et': case 'eu': case 'fa': case 'fi': case 'fo': case 'fur': case 'fy': case 'gl': case 'gu': case 'ha': case 'he': case 'hu': case 'is': case 'it': case 'ku': case 'lb': case 'ml': case 'mn': case 'mr': case 'nah': case 'nb': case 'ne': case 'nl': case 'nn': case 'no': case 'oc': case 'om': case 'or': case 'pa': case 'pap': case 'ps': case 'pt': case 'so': case 'sq': case 'sv': case 'sw': case 'ta': case 'te': case 'tk': case 'ur': case 'zu': return (1 == $number) ? 0 : 1; case 'am': case 'bh': case 'fil': case 'fr': case 'gun': case 'hi': case 'hy': case 'ln': case 'mg': case 'nso': case 'pt_BR': case 'ti': case 'wa': return ($number < 2) ? 0 : 1; case 'be': case 'bs': case 'hr': case 'ru': case 'sh': case 'sr': case 'uk': return ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2); case 'cs': case 'sk': return (1 == $number) ? 0 : ((($number >= 2) && ($number <= 4)) ? 1 : 2); case 'ga': return (1 == $number) ? 0 : ((2 == $number) ? 1 : 2); case 'lt': return ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2); case 'sl': return (1 == $number % 100) ? 0 : ((2 == $number % 100) ? 1 : (((3 == $number % 100) || (4 == $number % 100)) ? 2 : 3)); case 'mk': return (1 == $number % 10) ? 0 : 1; case 'mt': return (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 1) && ($number % 100 < 11))) ? 1 : ((($number % 100 > 10) && ($number % 100 < 20)) ? 2 : 3)); case 'lv': return (0 == $number) ? 0 : (((1 == $number % 10) && (11 != $number % 100)) ? 1 : 2); case 'pl': return (1 == $number) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 12) || ($number % 100 > 14))) ? 1 : 2); case 'cy': return (1 == $number) ? 0 : ((2 == $number) ? 1 : (((8 == $number) || (11 == $number)) ? 2 : 3)); case 'ro': return (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 0) && ($number % 100 < 20))) ? 1 : 2); case 'ar': return (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: return 0; } } }