Date:	Fri, 26 Dec 1997 11:52:29 -0800 (PST)
Message-Id:	<199712261952.LAA12158@adit.ap.net>
Mime-Version:	1.0
To:	Noam Rotem <nrotem AT johnbryce DOT co DOT il>, djgpp AT delorie DOT com
From:	Nate Eldredge <eldredge AT ap DOT net>
Subject:	Re: Escape Sequences / Reading from Console

At 02:34  12/26/1997 PST, Noam Rotem wrote:
>Hi,
>
>1. Where can I find a list of escape sequences for unix 
>(like: "^[J2" - clear the screen)?
They are system specific. Some may support the ANSI terminal sequences,
which I think were derived from the VT100 terminal. I don't know offhand of
where you might find the list; 4DOS has one built into its online help and I
use that.
However, you can use the Unix `termcap' facilities. This is a scheme for
finding terminal escape sequences at runtime for whatever terminal may be in
use. The GNU libc (not djgpp libc!) docs have a tutorial on using them, and
I know the Linux Programmers Guide
(ftp://tsx-11.mit.edu/pub/linux/docs/guides/) has an embryonic documentation
including most of the capability strings. Also see man pages.
>2. Is there any portable function or asm code for reading one 
>single character from the console? (with DOS, I can use BIOS 
>interrupt 16h, but with unix I can't, as far as I understand 
>it). 
Again, use the termcap facilities under Unix. They can do this. DJGPP has
some termcap emulation but I don't know how well it works. You could use
#ifdefs to get the right code on the right system.

Nate Eldredge
eldredge AT ap DOT net

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