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Date:      Thu, 22 Feb 2007 10:33:20 -0500
From:      Thomas Dickey <dickey@radix.net>
To:        perryh@pluto.rain.com
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ssh to VMS - terminal problems
Message-ID:  <20070222153320.GA8712@saltmine.radix.net>
In-Reply-To: <45dd5ca7.ae4LWHr14/zt+Tnf%perryh@pluto.rain.com>
References:  <20070220155157.GA14595@mech-aslap33.men.bris.ac.uk> <20070220164517.GA27420@saltmine.radix.net> <20070220190537.GA15632@mech-aslap33.men.bris.ac.uk> <45dd5ca7.ae4LWHr14/zt+Tnf%perryh@pluto.rain.com>

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On Thu, Feb 22, 2007 at 01:04:39AM -0800, perryh@pluto.rain.com wrote:
> > > yes - VMS only knows about DEC-compatible terminals.  None of
> > > the *BSD console emulators do well enough to be usable on VMS.
> > >=20
> > > xterm supports ANSI color, VT220 emulation and UTF-8
> > > There's an faq at
> > > 	http://invisible-island.net/xterm/xterm.faq.html
> > > 	ftp://invisible-island.net/xterm/
>=20
> Which is fine if one doesn't mind having to fire up X.  Another
> possible approach would be to run ports/sysutils/screen, which
> "should" provide a decent VT100 over just about anything with a
> terminfo better than "dumb" or "unknown" :)

termcap.

screen doesn't use the fancier features from terminfo (and will do interest=
ing
but unuseful things if it is exposed to them).

It's a decent vt100 for the same issues: applications running vi.
Read the section on bugs (from its manpage):

     o  Screen has  no  clue  about  double-high  or  double-wide
        characters.  But  this  is  the only area where vttest is
        allowed to fail.

     o  Screen does not make use of hardware tabs.

However, that comment about vttest overlooks some of the keyboard
issues (such as repeating keys) that screen has no control over.
There are several terminals smarter than dumb/unknown that screen
cannot elevate or transform into a vt100...

--=20
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net

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