public function parseBody( $origLine )
    {
        if ( $this->parserState == self::PARSE_STATE_POST_LAST )
        {
            return;
        }

        $line = rtrim( $origLine, "\r\n" );

        // check if we hit any of the boundaries
        $newPart = false;
        $endOfMultipart = false;
        if ( strlen( $line ) > 0 && $line[0] == "-" )
        {
            if ( strcmp( trim( $line ), '--' . $this->boundary ) === 0 )
            {
                $newPart = true;
            }
            else if ( strcmp( trim( $line ), '--' . $this->boundary . '--' ) === 0 )
            {
                $endOfMultipart = true;
            }
        }

        // actions to do when starting or finishing a part
        if ( $newPart || $endOfMultipart )
        {
            if ( $this->parserState != self::PARSE_STATE_BODY )
            {
                // something is b0rked, we got a new separator before getting a body
                // we'll skip this part and continue to the next
                $this->currentPartParser = null;
                $this->currentPartHeaders = new ezcMailHeadersHolder();
                $this->parserState = $newPart ? self::PARSE_STATE_HEADERS : self::PARSE_STATE_POST_LAST;
            }
            else
            {
                // complete the work on the current part if there was any
                if ( $this->currentPartParser !== null )
                {
                    $part = $this->currentPartParser->finish();
                    if ( $part !== null ) // parsing failed
                    {
                        $this->partDone( $part );
                    }
                }

                // prepare for a new part if any
                $this->currentPartParser = null;
                $this->parserState =self::PARSE_STATE_POST_LAST;
                if ( $newPart )
                {
                    $this->parserState = self::PARSE_STATE_HEADERS;
                    $this->currentPartHeaders = new ezcMailHeadersHolder();
                }
            }
        }
        // normal data, pass to headers or current body
        else
        {
            if ( $this->parserState == self::PARSE_STATE_HEADERS && $line == '' )
            {
                $this->currentPartParser = self::createPartParserForHeaders( $this->currentPartHeaders );
                $this->parserState = self::PARSE_STATE_BODY;
            }
            else if ( $this->parserState == self::PARSE_STATE_HEADERS )
            {
                $this->parseHeader( $line, $this->currentPartHeaders );
            }
            else if ( $this->parserState == self::PARSE_STATE_BODY )
            {
                if ( $this->currentPartParser ) // we may have none if the part type was unknown
                {
                    // send body data to the part
                    $this->currentPartParser->parseBody( $origLine );
                }
            }
            // we are done parsing the multipart, ignore anything else pushed to us.
        }
    }