annotate vendor/symfony/console/Question/ConfirmationQuestion.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 129ea1e6d783
children
rev   line source
Chris@0 1 <?php
Chris@0 2
Chris@0 3 /*
Chris@0 4 * This file is part of the Symfony package.
Chris@0 5 *
Chris@0 6 * (c) Fabien Potencier <fabien@symfony.com>
Chris@0 7 *
Chris@0 8 * For the full copyright and license information, please view the LICENSE
Chris@0 9 * file that was distributed with this source code.
Chris@0 10 */
Chris@0 11
Chris@0 12 namespace Symfony\Component\Console\Question;
Chris@0 13
Chris@0 14 /**
Chris@0 15 * Represents a yes/no question.
Chris@0 16 *
Chris@0 17 * @author Fabien Potencier <fabien@symfony.com>
Chris@0 18 */
Chris@0 19 class ConfirmationQuestion extends Question
Chris@0 20 {
Chris@0 21 private $trueAnswerRegex;
Chris@0 22
Chris@0 23 /**
Chris@0 24 * @param string $question The question to ask to the user
Chris@0 25 * @param bool $default The default answer to return, true or false
Chris@0 26 * @param string $trueAnswerRegex A regex to match the "yes" answer
Chris@0 27 */
Chris@0 28 public function __construct($question, $default = true, $trueAnswerRegex = '/^y/i')
Chris@0 29 {
Chris@0 30 parent::__construct($question, (bool) $default);
Chris@0 31
Chris@0 32 $this->trueAnswerRegex = $trueAnswerRegex;
Chris@0 33 $this->setNormalizer($this->getDefaultNormalizer());
Chris@0 34 }
Chris@0 35
Chris@0 36 /**
Chris@0 37 * Returns the default answer normalizer.
Chris@0 38 *
Chris@0 39 * @return callable
Chris@0 40 */
Chris@0 41 private function getDefaultNormalizer()
Chris@0 42 {
Chris@0 43 $default = $this->getDefault();
Chris@0 44 $regex = $this->trueAnswerRegex;
Chris@0 45
Chris@0 46 return function ($answer) use ($default, $regex) {
Chris@17 47 if (\is_bool($answer)) {
Chris@0 48 return $answer;
Chris@0 49 }
Chris@0 50
Chris@0 51 $answerIsTrue = (bool) preg_match($regex, $answer);
Chris@0 52 if (false === $default) {
Chris@0 53 return $answer && $answerIsTrue;
Chris@0 54 }
Chris@0 55
Chris@17 56 return '' === $answer || $answerIsTrue;
Chris@0 57 };
Chris@0 58 }
Chris@0 59 }