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