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000102_fdc@columbia.edu_Fri May 31 09:31:59 EDT 2002.msg
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Article: 13399 of comp.protocols.kermit.misc
Path: newsmaster.cc.columbia.edu!news.columbia.edu!news-not-for-mail
From: fdc@columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Redhat 7.3 and the "Alt" key
Date: 31 May 2002 09:30:05 -0400
Organization: Columbia University
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In article <ufdkmo6qn4tb13@corp.supernews.com>,
John Kidwell <kidwell@hotrmail.com> wrote:
: I recently upgraded my Redhat Linux box from 7.2 and 7.3. Prior to
: the upgrade I was able to define the alt keys, for instance "ALt-k"
: was \225.
:
: Now when a do a "SET KEY" and press "Alt-k", it looks like this:
:
: C-Kermit> show key
: Press key:
: Key code \27 => Character: \27 (self, no translation)
: C-Kermit> k
:
: I'm using C-Kermit 8.0.200 and I recompiled it for the test. I also
: downloaded 8.0.201, compiled it and had the same results.
:
I have only a little bit to add to Jeff's answer. I believe his theory is
right -- your previous Linux version was treating the Alt key like a
"meta" key (turning on the 8th bit); in your new version, Alt-key sequences
are generating escape sequences. This means that when you press, say,
Alt-k, Kermit gets multiple characters. Of course it has no way of knowing
whether you typed each character individually, or they was generated by the
terminal driver. In any case, C-Kermit can map only single 7- or 8-bit
characters.
The late, lamented NeXT workstation had an Alternate key which let you
type 8-bit characters (in this case, accented letters from the NeXT
Multinational character set), and these could be mapped by Kermit. It was
a handy arrangement, but an uncommon one.
You can read more about such phenomena here:
http://www.columbia.edu/kermit/ckfaq.html#term
and here:
http://www.columbia.edu/kermit/ckubwr.html#x3.3.3
- Frank