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<?php |
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|
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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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|
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namespace Symfony\Component\Console\Question; |
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|
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/** |
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* Represents a yes/no question. |
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* |
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* @author Fabien Potencier <fabien@symfony.com> |
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*/ |
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class ConfirmationQuestion extends Question |
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{ |
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private $trueAnswerRegex; |
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|
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/** |
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* @param string $question The question to ask to the user |
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* @param bool $default The default answer to return, true or false |
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* @param string $trueAnswerRegex A regex to match the "yes" answer |
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*/ |
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public function __construct(string $question, bool $default = true, string $trueAnswerRegex = '/^y/i') |
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{ |
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parent::__construct($question, $default); |
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|
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$this->trueAnswerRegex = $trueAnswerRegex; |
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$this->setNormalizer($this->getDefaultNormalizer()); |
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} |
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|
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/** |
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* Returns the default answer normalizer. |
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*/ |
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private function getDefaultNormalizer(): callable |
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{ |
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$default = $this->getDefault(); |
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$regex = $this->trueAnswerRegex; |
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|
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return function ($answer) use ($default, $regex) { |
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if (\is_bool($answer)) { |
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return $answer; |
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} |
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|
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$answerIsTrue = (bool) preg_match($regex, $answer); |
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if (false === $default) { |
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return $answer && $answerIsTrue; |
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} |
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|
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return '' === $answer || $answerIsTrue; |
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}; |
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} |
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} |
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