Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Finder\Comparator;
Chris@0: 
Chris@0: /**
Chris@0:  * DateCompare compiles date comparisons.
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  */
Chris@0: class DateComparator extends Comparator
Chris@0: {
Chris@0:     /**
Chris@0:      * @param string $test A comparison string
Chris@0:      *
Chris@0:      * @throws \InvalidArgumentException If the test is not understood
Chris@0:      */
Chris@0:     public function __construct($test)
Chris@0:     {
Chris@0:         if (!preg_match('#^\s*(==|!=|[<>]=?|after|since|before|until)?\s*(.+?)\s*$#i', $test, $matches)) {
Chris@0:             throw new \InvalidArgumentException(sprintf('Don\'t understand "%s" as a date test.', $test));
Chris@0:         }
Chris@0: 
Chris@0:         try {
Chris@0:             $date = new \DateTime($matches[2]);
Chris@0:             $target = $date->format('U');
Chris@0:         } catch (\Exception $e) {
Chris@0:             throw new \InvalidArgumentException(sprintf('"%s" is not a valid date.', $matches[2]));
Chris@0:         }
Chris@0: 
Chris@0:         $operator = isset($matches[1]) ? $matches[1] : '==';
Chris@0:         if ('since' === $operator || 'after' === $operator) {
Chris@0:             $operator = '>';
Chris@0:         }
Chris@0: 
Chris@0:         if ('until' === $operator || 'before' === $operator) {
Chris@0:             $operator = '<';
Chris@0:         }
Chris@0: 
Chris@0:         $this->setOperator($operator);
Chris@0:         $this->setTarget($target);
Chris@0:     }
Chris@0: }