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<?php |
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declare(strict_types=1); |
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namespace Nexendrie\Utils; |
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use Nette\Utils\Strings; |
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/** |
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* Intervals |
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* |
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* @author Jakub Konečný |
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*/ |
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final class Intervals { |
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use \Nette\StaticClass; |
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public const PATTERN = '/(\{\-?\d+(,\-?\d+)*\})|((?P<start>\[|\])(?P<limit1>\-?\d+|\-Inf),(?P<limit2>\-?\d+|\+Inf)(?P<end>\[|\]))/'; |
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public static function findInterval(string $text): ?string { |
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preg_match(static::PATTERN, $text, $result); |
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if(!is_array($result) || count($result) < 1) { |
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return null; |
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} |
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return $result[0]; |
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} |
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public static function isInInterval(int $number, string $interval): bool { |
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if(static::findInterval($interval) === null || $interval !== static::findInterval($interval)) { |
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return false; |
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} |
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if(Strings::startsWith($interval, "{")) { |
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/** @var int[] $numbers */ |
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$numbers = explode(",", Strings::trim($interval, "{}")); |
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array_walk($numbers, function(&$value): void { |
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$value = (int) $value; |
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}); |
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return (in_array($number, $numbers, true)); |
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} |
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preg_match(static::PATTERN, $interval, $matches); |
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$start = $matches["start"][0]; |
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$end = $matches["end"][0]; |
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$limit1 = (int) str_replace("-Inf", (string) PHP_INT_MIN, $matches["limit1"]); |
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$limit2 = (int) str_replace("+Inf", (string) PHP_INT_MAX, $matches["limit2"]); |
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if($limit1 > $limit2) { |
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return false; |
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} elseif($number < $limit1) { |
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return false; |
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} elseif($number > $limit2) { |
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return false; |
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} elseif($number === $limit1 && $start === "]") { |
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return false; |
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} elseif($number === $limit2 && $end === "[") { |
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return false; |
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} |
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return true; |
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} |
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} |
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?> |
nexendrie /
utils
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