NumberComparator.php in Database Sanitize 7

Namespace

Symfony\Component\Finder\Comparator

File

vendor/symfony/finder/Comparator/NumberComparator.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Finder\Comparator;


/**
 * NumberComparator compiles a simple comparison to an anonymous
 * subroutine, which you can call with a value to be tested again.
 *
 * Now this would be very pointless, if NumberCompare didn't understand
 * magnitudes.
 *
 * The target value may use magnitudes of kilobytes (k, ki),
 * megabytes (m, mi), or gigabytes (g, gi).  Those suffixed
 * with an i use the appropriate 2**n version in accordance with the
 * IEC standard: http://physics.nist.gov/cuu/Units/binary.html
 *
 * Based on the Perl Number::Compare module.
 *
 * @author    Fabien Potencier <[e-mail]> PHP port
 * @author    Richard Clamp <[e-mail]> Perl version
 * @copyright 2004-2005 Fabien Potencier <[e-mail]>
 * @copyright 2002 Richard Clamp <[e-mail]>
 *
 * @see http://physics.nist.gov/cuu/Units/binary.html
 */
class NumberComparator extends Comparator {

  /**
   * @param string|int $test A comparison string or an integer
   *
   * @throws \InvalidArgumentException If the test is not understood
   */
  public function __construct($test) {
    if (!preg_match('#^\\s*(==|!=|[<>]=?)?\\s*([0-9\\.]+)\\s*([kmg]i?)?\\s*$#i', $test, $matches)) {
      throw new \InvalidArgumentException(sprintf('Don\'t understand "%s" as a number test.', $test));
    }
    $target = $matches[2];
    if (!is_numeric($target)) {
      throw new \InvalidArgumentException(sprintf('Invalid number "%s".', $target));
    }
    if (isset($matches[3])) {

      // magnitude
      switch (strtolower($matches[3])) {
        case 'k':
          $target *= 1000;
          break;
        case 'ki':
          $target *= 1024;
          break;
        case 'm':
          $target *= 1000000;
          break;
        case 'mi':
          $target *= 1024 * 1024;
          break;
        case 'g':
          $target *= 1000000000;
          break;
        case 'gi':
          $target *= 1024 * 1024 * 1024;
          break;
      }
    }
    $this
      ->setTarget($target);
    $this
      ->setOperator(isset($matches[1]) ? $matches[1] : '==');
  }

}

Classes

Name	Description
NumberComparator	NumberComparator compiles a simple comparison to an anonymous subroutine, which you can call with a value to be tested again.