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/vendor/symfony/console/Helper/ -> SymfonyQuestionHelper.php (source)

   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\Console\Helper;
  13  
  14  use Symfony\Component\Console\Exception\LogicException;
  15  use Symfony\Component\Console\Formatter\OutputFormatter;
  16  use Symfony\Component\Console\Input\InputInterface;
  17  use Symfony\Component\Console\Output\OutputInterface;
  18  use Symfony\Component\Console\Question\ChoiceQuestion;
  19  use Symfony\Component\Console\Question\ConfirmationQuestion;
  20  use Symfony\Component\Console\Question\Question;
  21  use Symfony\Component\Console\Style\SymfonyStyle;
  22  
  23  /**
  24   * Symfony Style Guide compliant question helper.
  25   *
  26   * @author Kevin Bond <kevinbond@gmail.com>
  27   */
  28  class SymfonyQuestionHelper extends QuestionHelper
  29  {
  30      /**
  31       * {@inheritdoc}
  32       *
  33       * To be removed in 4.0
  34       */
  35      public function ask(InputInterface $input, OutputInterface $output, Question $question)
  36      {
  37          $validator = $question->getValidator();
  38          $question->setValidator(function ($value) use ($validator) {
  39              if (null !== $validator) {
  40                  $value = $validator($value);
  41              } else {
  42                  // make required
  43                  if (!\is_array($value) && !\is_bool($value) && 0 === \strlen($value)) {
  44                      @trigger_error('The default question validator is deprecated since Symfony 3.3 and will not be used anymore in version 4.0. Set a custom question validator if needed.', \E_USER_DEPRECATED);
  45  
  46                      throw new LogicException('A value is required.');
  47                  }
  48              }
  49  
  50              return $value;
  51          });
  52  
  53          return parent::ask($input, $output, $question);
  54      }
  55  
  56      /**
  57       * {@inheritdoc}
  58       */
  59      protected function writePrompt(OutputInterface $output, Question $question)
  60      {
  61          $text = OutputFormatter::escapeTrailingBackslash($question->getQuestion());
  62          $default = $question->getDefault();
  63  
  64          switch (true) {
  65              case null === $default:
  66                  $text = sprintf(' <info>%s</info>:', $text);
  67  
  68                  break;
  69  
  70              case $question instanceof ConfirmationQuestion:
  71                  $text = sprintf(' <info>%s (yes/no)</info> [<comment>%s</comment>]:', $text, $default ? 'yes' : 'no');
  72  
  73                  break;
  74  
  75              case $question instanceof ChoiceQuestion && $question->isMultiselect():
  76                  $choices = $question->getChoices();
  77                  $default = explode(',', $default);
  78  
  79                  foreach ($default as $key => $value) {
  80                      $default[$key] = $choices[trim($value)];
  81                  }
  82  
  83                  $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, OutputFormatter::escape(implode(', ', $default)));
  84  
  85                  break;
  86  
  87              case $question instanceof ChoiceQuestion:
  88                  $choices = $question->getChoices();
  89                  $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, OutputFormatter::escape(isset($choices[$default]) ? $choices[$default] : $default));
  90  
  91                  break;
  92  
  93              default:
  94                  $text = sprintf(' <info>%s</info> [<comment>%s</comment>]:', $text, OutputFormatter::escape($default));
  95          }
  96  
  97          $output->writeln($text);
  98  
  99          $prompt = ' > ';
 100  
 101          if ($question instanceof ChoiceQuestion) {
 102              $output->writeln($this->formatChoiceQuestionChoices($question, 'comment'));
 103  
 104              $prompt = $question->getPrompt();
 105          }
 106  
 107          $output->write($prompt);
 108      }
 109  
 110      /**
 111       * {@inheritdoc}
 112       */
 113      protected function writeError(OutputInterface $output, \Exception $error)
 114      {
 115          if ($output instanceof SymfonyStyle) {
 116              $output->newLine();
 117              $output->error($error->getMessage());
 118  
 119              return;
 120          }
 121  
 122          parent::writeError($output, $error);
 123      }
 124  }


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