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Diffstat (limited to 'vendor/symfony/console/Question/ChoiceQuestion.php')
-rw-r--r-- | vendor/symfony/console/Question/ChoiceQuestion.php | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/vendor/symfony/console/Question/ChoiceQuestion.php b/vendor/symfony/console/Question/ChoiceQuestion.php new file mode 100644 index 00000000..2c40638d --- /dev/null +++ b/vendor/symfony/console/Question/ChoiceQuestion.php @@ -0,0 +1,177 @@ +<?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; + +use Symfony\Component\Console\Exception\InvalidArgumentException; + +/** + * Represents a choice question. + * + * @author Fabien Potencier <fabien@symfony.com> + */ +class ChoiceQuestion extends Question +{ + private $choices; + private $multiselect = false; + private $prompt = ' > '; + private $errorMessage = 'Value "%s" is invalid'; + + /** + * Constructor. + * + * @param string $question The question to ask to the user + * @param array $choices The list of available choices + * @param mixed $default The default answer to return + */ + public function __construct($question, array $choices, $default = null) + { + parent::__construct($question, $default); + + $this->choices = $choices; + $this->setValidator($this->getDefaultValidator()); + $this->setAutocompleterValues($choices); + } + + /** + * Returns available choices. + * + * @return array + */ + public function getChoices() + { + return $this->choices; + } + + /** + * Sets multiselect option. + * + * When multiselect is set to true, multiple choices can be answered. + * + * @param bool $multiselect + * + * @return ChoiceQuestion The current instance + */ + public function setMultiselect($multiselect) + { + $this->multiselect = $multiselect; + $this->setValidator($this->getDefaultValidator()); + + return $this; + } + + /** + * Gets the prompt for choices. + * + * @return string + */ + public function getPrompt() + { + return $this->prompt; + } + + /** + * Sets the prompt for choices. + * + * @param string $prompt + * + * @return ChoiceQuestion The current instance + */ + public function setPrompt($prompt) + { + $this->prompt = $prompt; + + return $this; + } + + /** + * Sets the error message for invalid values. + * + * The error message has a string placeholder (%s) for the invalid value. + * + * @param string $errorMessage + * + * @return ChoiceQuestion The current instance + */ + public function setErrorMessage($errorMessage) + { + $this->errorMessage = $errorMessage; + $this->setValidator($this->getDefaultValidator()); + + return $this; + } + + /** + * Returns the default answer validator. + * + * @return callable + */ + private function getDefaultValidator() + { + $choices = $this->choices; + $errorMessage = $this->errorMessage; + $multiselect = $this->multiselect; + $isAssoc = $this->isAssoc($choices); + + return function ($selected) use ($choices, $errorMessage, $multiselect, $isAssoc) { + // Collapse all spaces. + $selectedChoices = str_replace(' ', '', $selected); + + if ($multiselect) { + // Check for a separated comma values + if (!preg_match('/^[a-zA-Z0-9_-]+(?:,[a-zA-Z0-9_-]+)*$/', $selectedChoices, $matches)) { + throw new InvalidArgumentException(sprintf($errorMessage, $selected)); + } + $selectedChoices = explode(',', $selectedChoices); + } else { + $selectedChoices = array($selected); + } + + $multiselectChoices = array(); + foreach ($selectedChoices as $value) { + $results = array(); + foreach ($choices as $key => $choice) { + if ($choice === $value) { + $results[] = $key; + } + } + + if (count($results) > 1) { + throw new InvalidArgumentException(sprintf('The provided answer is ambiguous. Value should be one of %s.', implode(' or ', $results))); + } + + $result = array_search($value, $choices); + + if (!$isAssoc) { + if (false !== $result) { + $result = $choices[$result]; + } elseif (isset($choices[$value])) { + $result = $choices[$value]; + } + } elseif (false === $result && isset($choices[$value])) { + $result = $value; + } + + if (false === $result) { + throw new InvalidArgumentException(sprintf($errorMessage, $value)); + } + + $multiselectChoices[] = (string) $result; + } + + if ($multiselect) { + return $multiselectChoices; + } + + return current($multiselectChoices); + }; + } +} |