name : MultiplePcreFilterIterator.php <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Finder\Iterator; use Symfony\Component\Finder\Expression\Expression; /** * MultiplePcreFilterIterator filters files using patterns (regexps, globs or strings). * * @author Fabien Potencier <fabien@symfony.com> */ abstract class MultiplePcreFilterIterator extends FilterIterator { protected $matchRegexps = array(); protected $noMatchRegexps = array(); /** * Constructor. * * @param \Iterator $iterator The Iterator to filter * @param array $matchPatterns An array of patterns that need to match * @param array $noMatchPatterns An array of patterns that need to not match */ public function __construct(\Iterator $iterator, array $matchPatterns, array $noMatchPatterns) { foreach ($matchPatterns as $pattern) { $this->matchRegexps[] = $this->toRegex($pattern); } foreach ($noMatchPatterns as $pattern) { $this->noMatchRegexps[] = $this->toRegex($pattern); } parent::__construct($iterator); } /** * Checks whether the string is a regex. * * @param string $str * * @return Boolean Whether the given string is a regex */ protected function isRegex($str) { return Expression::create($str)->isRegex(); } /** * Converts string into regexp. * * @param string $str Pattern * * @return string regexp corresponding to a given string */ abstract protected function toRegex($str); }