PathFilterIterator.php

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<?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;

class PathFilterIterator extends MultiplePcreFilterIterator
{
    public function accept()
    {
        $filename = $this->current()->getRelativePathname();

        if ('\\' === DIRECTORY_SEPARATOR) {
            $filename = str_replace('\\', '/', $filename);
        }

        // should at least not match one rule to exclude
        foreach ($this->noMatchRegexps as $regex) {
            if (preg_match($regex, $filename)) {
                return false;
            }
        }

        // should at least match one rule
        $match = true;
        if ($this->matchRegexps) {
            $match = false;
            foreach ($this->matchRegexps as $regex) {
                if (preg_match($regex, $filename)) {
                    return true;
                }
            }
        }

        return $match;
    }

    protected function toRegex($str)
    {
        return $this->isRegex($str) ? $str : '/'.preg_quote($str, '/').'/';
    }
}