vendor/symfony/form/Symfony/Component/Form/Extension/Core/EventListener/TrimListener.php

   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\Form\Extension\Core\EventListener;
  13
  14 use Symfony\Component\Form\FormEvents;
  15 use Symfony\Component\Form\FormEvent;
  16 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  17
  18 /**
  19  * Trims string data
  20  *
  21  * @author Bernhard Schussek <bschussek@gmail.com>
  22  */
  23 class TrimListener implements EventSubscriberInterface
  24 {
  25     public function preSubmit(FormEvent $event)
  26     {
  27         $data = $event->getData();
  28
  29         if (!is_string($data)) {
  30             return;
  31         }
  32
  33         if (null !== $result = @preg_replace('/^[\pZ\p{Cc}]+|[\pZ\p{Cc}]+$/u', '', $data)) {
  34             $event->setData($result);
  35         } else {
  36             $event->setData(trim($data));
  37         }
  38     }
  39
  40     /**
  41      * Alias of {@link preSubmit()}.
  42      *
  43      * @deprecated Deprecated since version 2.3, to be removed in 3.0. Use
  44      *             {@link preSubmit()} instead.
  45      */
  46     public function preBind(FormEvent $event)
  47     {
  48         $this->preSubmit($event);
  49     }
  50
  51     public static function getSubscribedEvents()
  52     {
  53         return array(FormEvents::PRE_SUBMIT => 'preSubmit');
  54     }
  55 }