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\Comparator;
13: 
14: /**
15:  * DateCompare compiles date comparisons.
16:  *
17:  * @author Fabien Potencier <fabien@symfony.com>
18:  */
19: class DateComparator extends Comparator
20: {
21: 
22:     /**
23:      * Constructor.
24:      *
25:      * @param string $test A comparison string
26:      *
27:      * @throws \InvalidArgumentException If the test is not understood
28:      */
29:     public function __construct($test)
30:     {
31:         if (!preg_match('#^\s*(==|!=|[<>]=?|after|since|before|until)?\s*(.+?)\s*$#i', $test, $matches)) {
32:             throw new \InvalidArgumentException(sprintf('Don\'t understand "%s" as a date test.', $test));
33:         }
34: 
35:         try {
36:             $date = new \DateTime($matches[2]);
37:             $target = $date->format('U');
38:         } catch (\Exception $e) {
39:             throw new \InvalidArgumentException(sprintf('"%s" is not a valid date.', $matches[2]));
40:         }
41: 
42:         $operator = isset($matches[1]) ? $matches[1] : '==';
43:         if ('since' === $operator || 'after' === $operator) {
44:             $operator = '>';
45:         }
46: 
47:         if ('until' === $operator || 'before' === $operator) {
48:             $operator = '<';
49:         }
50: 
51:         $this->setOperator($operator);
52:         $this->setTarget($target);
53:     }
54: }
55: