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- Path: sparky!uunet!nwnexus!remote!Gatekeeper
- From: Thomas.Mcwilliams@f42.n377.z1.fidonet.org (Thomas Mcwilliams)
- Newsgroups: comp.os.linux
- Subject: Good comm program?
- Message-ID: <711753409.F00056@remote.halcyon.com>
- Date: Tue, 21 Jul 1992 00:01:00 -0800
- Sender: Gatekeeper@remote.halcyon.com
- Lines: 92
-
- Michael O'Reilly, In a message on 18 July wrote :
-
- MO> xcomm has a nasty hack is the source (in some file that I forget)
- that
- MO> explicitly converts char 127 ---> char 8. This just needs fixing. If
- you
- MO> prefer I could upload the correct binaries.
- ????????????????
-
- As the one who did the port of XC to Linux, and as the one who has
- been maintaining it, please discuss this with me before uploading
- any new binaries. It would be better for any "fix" to be coordinated
- so that we are all on the same page, and can arrive at the best
- solution.
- Uploading a new binary will only break XC for those outside of VAX
- servers.
-
- Allow me to offer you some background information, and then a proposed
- solution. XC has been a standard comm program for Unix since about 1985
- .
- It has a long and interesting history. If ever there was a good
- argument
- for having freely available source code, XC belongs in that class. Some
- of the original contributors to XC are now dead but their code still
- benefits us. The current overall maintainer is jpr@jpr.com.
-
- When I was porting XC over to Linux in the spring, several problems
- presented themselves in the way Linux defines the backspace key.
- Normally, under the C language and most other systems (the notable
- exception being VAXen) the backspace key echoes '\b' ( '\08' ). The
- delete character of course is '\177'. XC has an internal line editor
- and command parser which was confounded by the delete character being
- echoed instead of backspace. In addition, when connected to a remote
- non-VAX server, the delete causes all kinds of problems. I would have
- liked to have had XC work "out of the box" but because of the Linux
- keyboard some changes had to be made to the command parser and line
- editor. In addition, sending the delete character when a backspace
- was expected also had to be changed. Quite frankly, getting XC to
- work nicely under Linux was not a trivial task, every change has
- its rhyme and reason. If you compile XC "out of the box" you will
- indeed have your delete character but you won't have a line editor
- or working command parser.
-
- Most users who need the delete can change the erase character with
- the stty command at the remote. However, the converse is not true:
- the stty command is not available to most people outside of their
- own shell accounts. Public information services don't generally
- give you this option. In the world at large, most information
- servers don't know what to do with '\177'. And most Linux users
- have no option but to connect to non-VAX servers which predominate
- public access systems.
-
- I mentioned this in the docs, but only one other person has contacted
- me on this point. My own opinion is that the Linux keyboard should be
- setup to reflect the way the keys are actually labeled:
-
- Let the <Backspace> key echo '\b' the backspace character.
-
- Let the <Delete> key echo '\177' the delete character.
-
- Logical right? The XC program has been with us for 7 years and on many
- Unix systems. The fact that XC is setup with its own internal line
- editor and command parser to interpret the backspace key as
- the backspace character leads me to conclude that it the Linux
- interpretation which is non-standard. Generally terminals that use
- the delete character have it assigned to a key labeled "rubout".
- I think that Linux should use the <Delete> key as the "rubout/delete"
- key and let the <Backspace> key echo '\b' as Comrade Lenin intended.
- Others have posted comments about this in the past but I don't know
- that there was any resolution. Most people would never notice it but
- those porting various softwares will most definitely notice it
- again, and have to deal with it in some fashion.
-
- However, all that doesn't change the reality of what we have now.
- What I propose to do is add the code to allow the interpretation of
- the <Delete> character be settable at the command line or from
- the init file like the other options. Does this sound ok to you?
- I think this immediate solution is the most desirable rather than
- different compile-time solutions proffered by the parochial interests
- of the Deletenik and Backspacenik factions. The only elegant solution
- involves changing the keyboard definitions. In that case XC would
- compile "out of the box" and (save for the broken xmodem module which
- I also fixed) be quite usable "plain vanilla". Any thoughts?
-
- Thomas
-
- ...
- * ATP/Linux 1.3bv * Thomas McWilliams (ARS KI4N)
-
-
- * Origin: The Slut Club -- 813-689-1150 (1:377/42.0)
-
-