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Diffstat (limited to 'vendor/symfony/finder/Comparator/NumberComparator.php')
-rw-r--r--vendor/symfony/finder/Comparator/NumberComparator.php79
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diff --git a/vendor/symfony/finder/Comparator/NumberComparator.php b/vendor/symfony/finder/Comparator/NumberComparator.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\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 <fabien@symfony.com> PHP port
+ * @author Richard Clamp <richardc@unixbeard.net> Perl version
+ * @copyright 2004-2005 Fabien Potencier <fabien@symfony.com>
+ * @copyright 2002 Richard Clamp <richardc@unixbeard.net>
+ *
+ * @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] : '==');
+ }
+}