<?php
// File name:	rfc1521.inc.php
// Description:	PHP subroutine for RFC 1521 MIME related patterns
// Date:	2004-07-04
// Author:	imacat <imacat@pristine.com.tw>
// Copyright:	Copyright (C) 2004-2007 Pristine Communications

// Set the include path
if (!defined("INCPATH_SET")) {
    require_once dirname(__FILE__) . "/incpath.inc.php";
}
// Referenced subroutines
require_once "monica/rfc822.inc.php";

define("RFC1521_TSPECIALS", "[()<>@,;:\\\\\"\\/\\[\\]?=]");
define("RFC1521_TOKEN", "[^()<>@,;:\\\\\"\\/\\[\\]?= \\x01-\\x1F\\x7F]");

define("RFC1521_ATTRIBUTE", RFC1521_TOKEN);
define("RFC1521_VALUE", "(?:" . RFC1521_TOKEN . "|" . RFC822_QUOTED_STR . ")");
define("RFC1521_PARAMETER", RFC1521_ATTRIBUTE . "=" . RFC1521_VALUE);

// rfc1521_value_need_quoting: Whether a value need to be quoted by RFC-1521
function rfc1521_value_need_quoting($a)
{
    return preg_match("/[()<>@,;:\\\\\"\\/\\[\\]?= \\x01-\\x1F\\x7F]/", $a)?
        true: false;
}

?>