<?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\Contracts\Translation;
use Symfony\Component\Translation\Exception\InvalidArgumentException;
/**
* A trait to help implement TranslatorInterface and LocaleAwareInterface.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
trait TranslatorTrait
{
private ?string $locale = null;
/**
* @return void
*/
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<interval>
({\s*
(\-?\d+(\.\d+)?[\s*,\s*\-?\d+(\.\d+)?]*)
\s*})
|
(?P<left_delimiter>[\[\]])
\s*
(?P<left>-Inf|\-?\d+(\.\d+)?)
\s*,\s*
(?P<right>\+?Inf|\-?\d+(\.\d+)?)
\s*
(?P<right_delimiter>[\[\]])
)\s*(?P<message>.*?)$/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,
};
}
}
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