SymfonyQuestionHelper.php in Zircon Profile 8

Namespace

Symfony\Component\Console\Helper

File

vendor/symfony/console/Helper/SymfonyQuestionHelper.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Console\Helper;

use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ChoiceQuestion;
use Symfony\Component\Console\Question\ConfirmationQuestion;
use Symfony\Component\Console\Question\Question;
use Symfony\Component\Console\Style\SymfonyStyle;

/**
 * Symfony Style Guide compliant question helper.
 *
 * @author Kevin Bond <[e-mail]>
 */
class SymfonyQuestionHelper extends QuestionHelper {

  /**
   * {@inheritdoc}
   */
  public function ask(InputInterface $input, OutputInterface $output, Question $question) {
    $validator = $question
      ->getValidator();
    $question
      ->setValidator(function ($value) use ($validator) {
      if (null !== $validator && is_callable($validator)) {
        $value = $validator($value);
      }

      // make required
      if (!is_array($value) && !is_bool($value) && 0 === strlen($value)) {
        throw new \Exception('A value is required.');
      }
      return $value;
    });
    return parent::ask($input, $output, $question);
  }

  /**
   * {@inheritdoc}
   */
  protected function writePrompt(OutputInterface $output, Question $question) {
    $text = $question
      ->getQuestion();
    $default = $question
      ->getDefault();
    switch (true) {
      case null === $default:
        $text = sprintf(' <info>%s</info>:', $text);
        break;
      case $question instanceof ConfirmationQuestion:
        $text = sprintf(' <info>%s (yes/no)</info> [<comment>%s</comment>]:', $text, $default ? 'yes' : 'no');
        break;
      case $question instanceof ChoiceQuestion:
        $choices = $question
          ->getChoices();
        $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $choices[$default]);
        break;
      default:
        $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, $default);
    }
    $output
      ->writeln($text);
    if ($question instanceof ChoiceQuestion) {
      $width = max(array_map('strlen', array_keys($question
        ->getChoices())));
      foreach ($question
        ->getChoices() as $key => $value) {
        $output
          ->writeln(sprintf("  [<comment>%-{$width}s</comment>] %s", $key, $value));
      }
    }
    $output
      ->write(' > ');
  }

  /**
   * {@inheritdoc}
   */
  protected function writeError(OutputInterface $output, \Exception $error) {
    if ($output instanceof SymfonyStyle) {
      $output
        ->newLine();
      $output
        ->error($error
        ->getMessage());
      return;
    }
    parent::writeError($output, $error);
  }

}

Classes

Name	Description
SymfonyQuestionHelper	Symfony Style Guide compliant question helper.