Horde_Imap_Client_Data_Format_Mailbox_Utf8::__construct PHP Method

    public function __construct($data)
    {
        parent::__construct($data);
        /* RFC 3501 allows any US-ASCII character, except null (\0), in
         * mailbox data.
         * RFC 6855 [3] institutes additional limitations on valid mailbox
         * characters, to comply with RFC 5198 [2] (Net-Unicode Definition):
         * "MUST NOT contain control characters (U+0000-U+001F and
         * U+0080-U+009F), a delete character (U+007F), a line separator
         * (U+2028), or a paragraph separator (U+2029)." */
        if ($this->quoted() && preg_match('/[\\x00-\\x1f\\x7f\\x80-\\x9f\\x{2028}\\x{2029}]/u', strval($this))) {
            throw new Horde_Imap_Client_Data_Format_Exception('Invalid character found in mailbox data.');
        }
        if ($this->literal()) {
            $this->forceQuoted();
        }
    }