ConfirmationQuestion.php
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ConfirmationQuestion.php
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	<?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\Component\Console\Question;

	/**
	* Represents a yes/no question.
	*
	* @author Fabien Potencier <fabien@symfony.com>
	*/
	class ConfirmationQuestion extends Question
	{
	/**
	* @param string $question The question to ask to the user
	* @param bool $default The default answer to return, true or false
	* @param string $trueAnswerRegex A regex to match the "yes" answer
	*/
	public function __construct(
	string $question,
	bool $default = true,
	private string $trueAnswerRegex = '/^y/i',
	) {
	parent::__construct($question, $default);

	$this->setNormalizer($this->getDefaultNormalizer());
	}

	/**
	* Returns the default answer normalizer.
	*/
	private function getDefaultNormalizer(): callable
	{
	$default = $this->getDefault();
	$regex = $this->trueAnswerRegex;

	return function ($answer) use ($default, $regex) {
	if (\is_bool($answer)) {
	return $answer;
	}

	$answerIsTrue = (bool) preg_match($regex, $answer);
	if (false === $default) {
	return $answer && $answerIsTrue;
	}

	return '' === $answer \|\| $answerIsTrue;
	};
	}
	}