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000337_news@newsmaster….columbia.edu _Mon Nov 23 06:16:59 1998.msg
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From: Brian McCauley <B.A.McCauley@bham.ac.uk>
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Kermit-95 APC and screen flicker
Date: 23 Nov 1998 11:02:36 +0000
Organization: Wolfson Computer Lab, University of Birmingham, England
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jaltman@watsun.cc.columbia.edu (Jeffrey Altman) writes:
> Brian McCauley <B.A.McCauley@bham.ac.uk> wrote:
> : In MS-Kermit APC does not cause significant flicker because the
> : command mode screen is not preserved after entering connect mode.
> :
> : In M-95 the connect mode screen is momentarily replaced by the command
> : mode screen.
> : Is there any way to get back the MS-Kermit behaviour?
>
> The MS-DOS Kermit behavior is not different from the Kermit 95 behavior.
> In order for an APC to be evaluated the command parser must be
> activated.
Yes it is different. If you read what I said you'll note that I did
not suggest that it was the handling of APC that was different.
What is different is the handling of the connect mode to command mode
transition.
> If all you want to do is change terminal emulation parameters then there
> are most likely escape sequences defined for the terminal emulation that
> will do what you desire.
Obviously I've already looked for that. I want to switch from block
cursor to underline and back. There is (perversely) no (documented)
sequence for this on genuine vt320.
> : While on the subject of APC. Any chance one could have better control
> : of APC? Could we perhaps have APC strings passed as an argument to a
> : user-provided macro?
>
> I'm not sure what you are asking here. An APC can include user defined
> macros.
Indeed that's how I usually use it. What I want is a way to make it
more secure. All APC commands would be passed one specific macro.
This macro would decide what to do. One possiblity would be for the
macro to simply pass the command on to the command interpreter. Hense
my following statement:
> : This would be most useful if the kermit command lanuage had something
> : like the bourne-shell "eval". Is there such a beast?
> As far as 'eval' goes. Simply define a macro to be the commands you want
> executed and then call it.
You mean like:
define shelleval { assign shellevaltmp \%1, shellevaltmp }
Yes this seems to work but I'm not sure I've got it completely
metacharacter safe.
--
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