            case STATE_ESCAPE_OUTER: // '\' outside quotes
                curarg += ch; state = STATE_ARGUMENT;
                break;
            case STATE_ESCAPE_DOUBLEQUOTED: // '\' in double-quoted text
                if(ch != '"' && ch != '\\') curarg += '\\'; // keep '\' for everything but the quote and '\' itself
                curarg += ch; state = STATE_DOUBLEQUOTED;
                break;
        }
    }