[CODE] - AddString(format)

void AddString(U **buf_p, size_t &maxlen, const cell *string, int width, int prec)
{
    int     size = 0;
    U       *buf;
    static cell nlstr[] = {'(','n','u','l','l',')','\0'};

    buf = *buf_p;

    if (string == NULL)
    {
        string = nlstr;
        prec = -1;
    }

    if (prec >= 0)
    {
        for (size = 0; size < prec; size++)
        {
            if (string[size] == '\0')
                break;
        }
    } else {
        while (string[size++]) ;
        size--;
    }

    if (size > (int)maxlen)
        size = maxlen;

    maxlen -= size;
    width -= size;

    while (size--)
        *buf++ = static_cast<U>(*string++);

    while (width-- > 0 && maxlen)
    {
        *buf++ = ' ';
        maxlen--;
    }

    *buf_p = buf;
}