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   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\Config\Definition\Builder;
  13  
  14  /**
  15   * This class builds normalization conditions.
  16   *
  17   * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  18   */
  19  class NormalizationBuilder
  20  {
  21      protected $node;
  22      public $before = [];
  23      public $remappings = [];
  24  
  25      public function __construct(NodeDefinition $node)
  26      {
  27          $this->node = $node;
  28      }
  29  
  30      /**
  31       * Registers a key to remap to its plural form.
  32       *
  33       * @param string $key    The key to remap
  34       * @param string $plural The plural of the key in case of irregular plural
  35       *
  36       * @return $this
  37       */
  38      public function remap($key, $plural = null)
  39      {
  40          $this->remappings[] = [$key, null === $plural ? $key.'s' : $plural];
  41  
  42          return $this;
  43      }
  44  
  45      /**
  46       * Registers a closure to run before the normalization or an expression builder to build it if null is provided.
  47       *
  48       * @return ExprBuilder|$this
  49       */
  50      public function before(\Closure $closure = null)
  51      {
  52          if (null !== $closure) {
  53              $this->before[] = $closure;
  54  
  55              return $this;
  56          }
  57  
  58          return $this->before[] = new ExprBuilder($this->node);
  59      }
  60  }