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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace WindPressDeps\Symfony\Component\Finder\Comparator; |
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|
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/** |
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* NumberComparator compiles a simple comparison to an anonymous |
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* subroutine, which you can call with a value to be tested again. |
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* |
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* Now this would be very pointless, if NumberCompare didn't understand |
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* magnitudes. |
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* |
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* The target value may use magnitudes of kilobytes (k, ki), |
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* megabytes (m, mi), or gigabytes (g, gi). Those suffixed |
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* with an i use the appropriate 2**n version in accordance with the |
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* IEC standard: http://physics.nist.gov/cuu/Units/binary.html |
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* |
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* Based on the Perl Number::Compare module. |
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* |
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* @author Fabien Potencier <fabien@symfony.com> PHP port |
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* @author Richard Clamp <richardc@unixbeard.net> Perl version |
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* @copyright 2004-2005 Fabien Potencier <fabien@symfony.com> |
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* @copyright 2002 Richard Clamp <richardc@unixbeard.net> |
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* |
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* @see http://physics.nist.gov/cuu/Units/binary.html |
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*/ |
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class NumberComparator extends Comparator |
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{ |
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/** |
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* @param string|null $test A comparison string or null |
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* |
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* @throws \InvalidArgumentException If the test is not understood |
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*/ |
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public function __construct(?string $test) |
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{ |
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if (null === $test || !\preg_match('#^\\s*(==|!=|[<>]=?)?\\s*([0-9\\.]+)\\s*([kmg]i?)?\\s*$#i', $test, $matches)) { |
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throw new \InvalidArgumentException(\sprintf('Don\'t understand "%s" as a number test.', $test ?? 'null')); |
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} |
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$target = $matches[2]; |
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if (!\is_numeric($target)) { |
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throw new \InvalidArgumentException(\sprintf('Invalid number "%s".', $target)); |
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} |
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if (isset($matches[3])) { |
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// magnitude |
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switch (\strtolower($matches[3])) { |
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case 'k': |
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$target *= 1000; |
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break; |
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case 'ki': |
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$target *= 1024; |
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break; |
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case 'm': |
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$target *= 1000000; |
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break; |
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case 'mi': |
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$target *= 1024 * 1024; |
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break; |
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case 'g': |
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$target *= 1000000000; |
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break; |
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case 'gi': |
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$target *= 1024 * 1024 * 1024; |
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break; |
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} |
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} |
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parent::__construct($target, $matches[1] ?: '=='); |
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} |
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} |
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|
