Debian bug report logs - #585
readline() in ftp interferes with emacs ange ftp on vt100

Package: emacs; Reported by: rdr@legislate.com (Raul Miller); 104 days old.

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From legislate.com!rdr Wed Mar  8 08:11:50 1995
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Date: Wed, 8 Mar 95 11:06 EST
From: rdr@legislate.com (Raul Miller)
To: debian-bugs@pixar.com
Cc: tobias@server.et-inf.fho-emden.de
In-Reply-To: <9503081247.AA08219@server.et-inf.fho-emden.de> (tobias@server.et-inf.fho-emden.de)
Subject: Re: readline() in ftp interferes with emacs ange ftp on vt100

Package: emacs
Version: 19.28-2

   > ange-ftp under emacs works fine from the linux console.
   > (e.g. ^X^F/ftp@sunsite.unc.edu:pub/Linux/distributions/debian^M),
   > but fails from a vt100 emulator.  This is because when TERM=vt100
   > ftp puts control character sequences into its prompt
   > (e.g. ^[?1l^[>^[?1h^[=) which prevents emacs from recognizing the
   > prompt.


Peter Tobias:
   Hmmm, I just looked at the ftp sources, it doesn't put any control
   characters in the prompt. The problem is probably the readline
   library and not ftp itself. At least I can't see anything I can do
   with the ftp command to avoid this behaviour.

Hmm... readline or emacs...??  I'm going to call this one an emacs
bug.  There's several ways emacs could deal with this.  The simplest
would be to place the command (setenv "TERM" "dumb") somewhere in the
environment inherited by ange ftp (or maybe place it in the ange ftp
code itself).  For example, the site-init.el file could include this
line.

Alternatively, (setenv "TERM" "emacs") could be used.  This is usually
associated with a (setenv "TERMCAP" ... which defines emacs to be the
same as dumb.  Unfortunately, TERM=emacs is not as
cross-system-compatable as TERM=dumb (which, perhaps, is the point).

I presume that any X applications started by emacs (e.g. during a
compile) will ignore the TERM=whatever and look for a
DISPLAY=something -- I have no reason to expect anything else, but
haven't tested this all that extensively.

Raul

Message sent:

From: iwj10@thor.cam.ac.uk (Ian Jackson)
To: rdr@legislate.com (Raul Miller)
Subject: Bug#585: Acknowledgement (was: readline() in ftp interferes with emacs ange ftp on vt100)
In-Reply-To: <m0rmOFj-0004i6C@[192.77.155.4]>
References: <m0rmOFj-0004i6C@[192.77.155.4]>

Thank you for the problem report you have sent regarding Debian GNU/Linux.
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(maintainer, debian-bugs)

Message sent to debian-devel@pixar.com:

Subject: Bug#585: readline() in ftp interferes with emacs ange ftp on vt100
Reply-To: rdr@legislate.com (Raul Miller), debian-bugs@pixar.com
Resent-To: debian-devel@pixar.com
Resent-From: rdr@legislate.com (Raul Miller)
Resent-Sender: iwj10@cus.cam.ac.uk
Resent-Date: Wed, 08 Mar 1995 16:18:05 GMT
Resent-Message-ID: <debian-bugs-handler.585.03081616254900@pixar.com>
Message-Id: <m0rmOFj-0004i6C@[192.77.155.4]>
Date: Wed, 8 Mar 95 11:06 EST
From: rdr@legislate.com (Raul Miller)
To: debian-bugs@pixar.com
Cc: tobias@server.et-inf.fho-emden.de
In-Reply-To: <9503081247.AA08219@server.et-inf.fho-emden.de> (tobias@server.et-inf.fho-emden.de)

Package: emacs
Version: 19.28-2

   > ange-ftp under emacs works fine from the linux console.
   > (e.g. ^X^F/ftp@sunsite.unc.edu:pub/Linux/distributions/debian^M),
   > but fails from a vt100 emulator.  This is because when TERM=vt100
   > ftp puts control character sequences into its prompt
   > (e.g. ^[?1l^[>^[?1h^[=) which prevents emacs from recognizing the
   > prompt.

Peter Tobias:
   Hmmm, I just looked at the ftp sources, it doesn't put any control
   characters in the prompt. The problem is probably the readline
   library and not ftp itself. At least I can't see anything I can do
   with the ftp command to avoid this behaviour.

Hmm... readline or emacs...??  I'm going to call this one an emacs
bug.  There's several ways emacs could deal with this.  The simplest
would be to place the command (setenv "TERM" "dumb") somewhere in the
environment inherited by ange ftp (or maybe place it in the ange ftp
code itself).  For example, the site-init.el file could include this
line.

Alternatively, (setenv "TERM" "emacs") could be used.  This is usually
associated with a (setenv "TERMCAP" ... which defines emacs to be the
same as dumb.  Unfortunately, TERM=emacs is not as
cross-system-compatable as TERM=dumb (which, perhaps, is the point).

I presume that any X applications started by emacs (e.g. during a
compile) will ignore the TERM=whatever and look for a
DISPLAY=something -- I have no reason to expect anything else, but
haven't tested this all that extensively.

Raul

Ian Jackson / iwj10@thor.cam.ac.uk, with the debian-bugs tracking mechanism

This page last modified 06:43:02 GMT Wed 21 Jun

Debian bug report logs - #585 readline() in ftp interferes with emacs ange ftp on vt100

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Debian bug report logs - #585
readline() in ftp interferes with emacs ange ftp on vt100