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98 lines
3.6 KiB
98 lines
3.6 KiB
<?php |
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Symfony\Component\Translation; |
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@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.2, use IdentityTranslator instead.', MessageSelector::class), E_USER_DEPRECATED); |
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use Symfony\Component\Translation\Exception\InvalidArgumentException; |
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/** |
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* MessageSelector. |
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* |
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* @author Fabien Potencier <fabien@symfony.com> |
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* @author Bernhard Schussek <bschussek@gmail.com> |
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* |
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* @deprecated since Symfony 4.2, use IdentityTranslator instead. |
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*/ |
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class MessageSelector |
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{ |
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/** |
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* Given a message with different plural translations separated by a |
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* pipe (|), this method returns the correct portion of the message based |
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* on the given number, locale and the pluralization rules in the message |
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* itself. |
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* |
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* The message supports two different types of pluralization rules: |
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* |
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* interval: {0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples |
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* indexed: There is one apple|There are %count% apples |
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* |
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* The indexed solution can also contain labels (e.g. one: There is one apple). |
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* This is purely for making the translations more clear - it does not |
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* affect the functionality. |
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* |
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* The two methods can also be mixed: |
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* {0} There are no apples|one: There is one apple|more: There are %count% apples |
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* |
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* @param string $message The message being translated |
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* @param int|float $number The number of items represented for the message |
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* @param string $locale The locale to use for choosing |
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* |
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* @return string |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function choose($message, $number, $locale) |
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{ |
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$parts = []; |
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if (preg_match('/^\|++$/', $message)) { |
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$parts = explode('|', $message); |
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} elseif (preg_match_all('/(?:\|\||[^\|])++/', $message, $matches)) { |
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$parts = $matches[0]; |
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} |
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$explicitRules = []; |
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$standardRules = []; |
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foreach ($parts as $part) { |
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$part = trim(str_replace('||', '|', $part)); |
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if (preg_match('/^(?P<interval>'.Interval::getIntervalRegexp().')\s*(?P<message>.*?)$/xs', $part, $matches)) { |
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$explicitRules[$matches['interval']] = $matches['message']; |
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} elseif (preg_match('/^\w+\:\s*(.*?)$/', $part, $matches)) { |
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$standardRules[] = $matches[1]; |
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} else { |
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$standardRules[] = $part; |
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} |
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} |
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// try to match an explicit rule, then fallback to the standard ones |
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foreach ($explicitRules as $interval => $m) { |
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if (Interval::test($number, $interval)) { |
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return $m; |
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} |
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} |
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$position = PluralizationRules::get($number, $locale); |
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if (!isset($standardRules[$position])) { |
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// when there's exactly one rule given, and that rule is a standard |
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// rule, use this rule |
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if (1 === \count($parts) && isset($standardRules[0])) { |
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return $standardRules[0]; |
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} |
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throw new InvalidArgumentException(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").', $message, $locale, $number)); |
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} |
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return $standardRules[$position]; |
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} |
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}
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