<?phpnamespaceGuzzleHttp\Psr7;finalclassRfc7230{/** * Header related regular expressions (copied from amphp/http package) * (Note: once we require PHP 7.x we could just depend on the upstream package) * * Note: header delimiter (\r\n) is modified to \r?\n to accept line feed only delimiters for BC reasons. * * @link https://github.com/amphp/http/blob/v1.0.1/src/Rfc7230.php#L12-L15 * @license https://github.com/amphp/http/blob/v1.0.1/LICENSE */constHEADER_REGEX="(^([^()<>@,;:\\\"/[\]?={}\x01-\x20\x7F]++):[ \t]*+((?:[ \t]*+[\x21-\x7E\x80-\xFF]++)*+)[ \t]*+\r?\n)m";constHEADER_FOLD_REGEX="(\r?\n[ \t]++)";}