detect terminal width

[Bruce Edge]

[snip]

> env vars, then tigetstr("lines"), etc). def getheightwidth():
>     height, width = struct.unpack(
>         "hhhh", ioctl(0, TERMIOS.TIOCGWINSZ ,"\000"*8))[0:2]
>     return height, width

Thanks, I have one more question, where is TERMIOS.TIOCGWINSZ defined in
2.1?

-Bruce.