NetNews Usenet Archive 1993 #3/NN_1993_3.iso/spool/comp/os/coherent/7018

Text File | 1993-01-28 | 1.6 KB | 34 lines

Newsgroups: comp.os.coherent
Path: sparky!uunet!europa.eng.gtefsd.com!emory!sol.ctr.columbia.edu!The-Star.honeywell.com!umn.edu!gaia.ucs.orst.edu!sequent!muncher.sequent.com!patbob
From: [e-mail] (Patrick White)
Subject: Re: Terminal question
Message-ID: <[e-mail]>
Sender: [e-mail] (usenet )
Nntp-Posting-Host: eng2.sequent.com
Organization: Sequent Computer Systems Inc.
References: <[e-mail]>
Date: Thu, 28 Jan 93 17:51:22 GMT
Lines: 21

In article <[e-mail]> "Coherent operating system" <[e-mail]> writes:
>You are not missing anything. Unfortunatly, I have not seen anything in the
>Unix world that querries terminals type as is found in VAX/VMS (where you
>can do SET TERM/INQUIRE which will send some escape sequences out, look at
>what comes back, and try to determine what type of terminal you have).

    There is a reason unix doesn't send some escape sequence out and see
what comes back.  That is because different terminals use different escape
sequences for the command to return the terminal type.  Other terminals don't
have such a command.  Escape sequences for some terminals lock up other
terminals.  Its really frustrating to the user to lock up their Banna-10
terminal while checking to see if it responds to the ANSI escape sequence.

    Lowest common denominator. at least for the U.S., says that about the
only thing that is safe to send out before the computer knows what kind of
terminal it is talking to is, is 7-bit ascii (typically only printable and
control characters).


--
Pat White ([e-mail], work: [phone])