crm.fsf.org/20131203/files/sites/all/modules-new/civicrm/vendor/symfony/finder/Symfony/Component/Finder/Iterator/ExcludeDirectoryFilterIterator.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\Finder\Iterator;
  13
  14 /**
  15  * ExcludeDirectoryFilterIterator filters out directories.
  16  *
  17  * @author Fabien Potencier <fabien@symfony.com>
  18  */
  19 class ExcludeDirectoryFilterIterator extends FilterIterator implements \RecursiveIterator
  20 {
  21     private $iterator;
  22     private $isRecursive;
  23     private $excludedDirs = array();
  24     private $excludedPattern;
  25
  26     /**
  27      * Constructor.
  28      *
  29      * @param \Iterator $iterator    The Iterator to filter
  30      * @param array     $directories An array of directories to exclude
  31      */
  32     public function __construct(\Iterator $iterator, array $directories)
  33     {
  34         $this->iterator = $iterator;
  35         $this->isRecursive = $iterator instanceof \RecursiveIterator;
  36         $patterns = array();
  37         foreach ($directories as $directory) {
  38             if (!$this->isRecursive || false !== strpos($directory, '/')) {
  39                 $patterns[] = preg_quote($directory, '#');
  40             } else {
  41                 $this->excludedDirs[$directory] = true;
  42             }
  43         }
  44         if ($patterns) {
  45             $this->excludedPattern = '#(?:^|/)(?:'.implode('|', $patterns).')(?:/|$)#';
  46         }
  47
  48         parent::__construct($iterator);
  49     }
  50
  51     /**
  52      * Filters the iterator values.
  53      *
  54      * @return bool true if the value should be kept, false otherwise
  55      */
  56     public function accept()
  57     {
  58         if ($this->isRecursive && isset($this->excludedDirs[$this->getFilename()]) && $this->isDir()) {
  59             return false;
  60         }
  61
  62         if ($this->excludedPattern) {
  63             $path = $this->isDir() ? $this->current()->getRelativePathname() : $this->current()->getRelativePath();
  64             $path = str_replace('\\', '/', $path);
  65
  66             return !preg_match($this->excludedPattern, $path);
  67         }
  68
  69         return true;
  70     }
  71
  72     public function hasChildren()
  73     {
  74         return $this->isRecursive && $this->iterator->hasChildren();
  75     }
  76
  77     public function getChildren()
  78     {
  79         $children = new self($this->iterator->getChildren(), array());
  80         $children->excludedDirs = $this->excludedDirs;
  81         $children->excludedPattern = $this->excludedPattern;
  82
  83         return $children;
  84     }
  85 }