Re: [LI] RE: script timer

["Binand Raj S." <binand@xxxxxxxxxxxxxxxxxxxxx>]

Chakrabarti, Suvendra (CTS) forced the electrons to say:
>      Hi Binand,
> 
>      Curses uses the termcap entries. If we know we are working
>      on a ANSI compliant terminal we can avoid Curses by giving
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
What if we are not?

Curses is the completely portable solution to the clearing screen problem,
and a few others ones that come up quite regularly, like non-echoing
input, reading a character without pressing the enter key and so on. The
curses functions I mentioned are POSIX conformant, so you can rest assured
that the code will compile and run on any POSIX system. After working
on 5 different Unix versions in the past four years, I understand the
implications of writing portable code.

The point is, you don't have to change the code every time you sit on
a different terminal.

>      printf("%c[2J", 27);
 
Again, hard coding ASCII is bad, and works against portable code.

>      This will clear the screen, and that is what I meant. I don't
>      think we need to use curses, just for clearing screens.

And why not? The library is there to be used.

Anyway, a semi-portable method to clear the screen is

printf ("\f"); fflush (stdout);

Binand
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