Re: @ SCOS Message Format ?

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Sujet : Re: @ SCOS Message Format ?
De : rjh (at) *nospam* cpax.org.uk (Richard Heathfield)
Groupes : sci.crypt
Date : 22. Feb 2025, 09:57:02
Autres entêtes
Organisation : Fix this later
Message-ID : <vpc3gu$3sf6s$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9
User-Agent : Mozilla Thunderbird
On 22/02/2025 08:19, David Entwistle wrote:
On Sat, 22 Feb 2025 06:36:18 +0000, Richard Heathfield wrote:
 
Irrelevant, I'm afraid, David.
>
 I don't believe so.
 Any newsreader will have at its heart a terminal emulation function, where
the characteristics of the early electromechanical terminals are
accurately reproduced via software.
Why? That's not how I would write a newsreader. What possible value could it have?

Although convenient to forget that, it
remains true.
Citation needed, as they say.

The details of the implementation of the caret control set
will have depended on the details of the emulation chosen.
Assumes "facts" not in evidence.

The newsreader software developers may, like us, may have forgotten about
this detail but it will remain embedded in any software that has been with
us for as long as USENET.
Deeply unlikely in my opinion. Would anyone else care to comment?

For more recently developed readers, the
behaviour may be less well defined. In either case it would be unwise to
assume that sending a caret followed by a capital letter A to the reader
will result in those two characters being displayed.
I don't see why; I really don't. A newsreader that screwed up so badly would quickly be condemned as unusable.

A perfectly correct
and compliant implementation will not. If the emulation says it should
treat it as a control sequence, that is what it will do.
Then the newsreader, if that's how it works, remains broken for the same reason I outlined in my last article. A newsreader that cannot correctly render the following code:
           out=in^key;
is not fit for purpose in sci.crypt.
--
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

Date Sujet#  Auteur
9 Feb 25 * @ SCOS Message Format ?34Byrl Raze Buckbriar
9 Feb 25 +- Re: @ SCOS Message Format ?1Onion Courier
10 Feb 25 `* Re: @ SCOS Message Format ?32Richard Heathfield
10 Feb 25  `* Re: @ SCOS Message Format ?31Rich
10 Feb 25   `* Re: @ SCOS Message Format ?30Richard Heathfield
21 Feb 25    `* Re: @ SCOS Message Format ?29David Entwistle
21 Feb 25     `* Re: @ SCOS Message Format ?28Richard Heathfield
21 Feb 25      `* Re: @ SCOS Message Format ?27David Entwistle
22 Feb 25       `* Re: @ SCOS Message Format ?26Richard Heathfield
22 Feb 25        `* Re: @ SCOS Message Format ?25David Entwistle
22 Feb 25         `* Re: @ SCOS Message Format ?24Richard Heathfield
23 Feb 25          `* Re: @ SCOS Message Format ?23David Entwistle
23 Feb 25           `* Re: @ SCOS Message Format ?22Richard Heathfield
24 Feb 25            `* Re: @ SCOS Message Format ?21David Entwistle
24 Feb 25             +* Re: @ SCOS Message Format ?18Richard Harnden
24 Feb 25             i+* Re: @ SCOS Message Format ?16Richard Heathfield
24 Feb 25             ii+* Re: @ SCOS Message Format ?13Richard Harnden
24 Feb 25             iii`* Re: @ SCOS Message Format ?12Richard Heathfield
24 Feb 25             iii +* Re: @ SCOS Message Format ?3Richard Harnden
24 Feb 25             iii i+- Re: @ SCOS Message Format ?1Richard Heathfield
24 Feb 25             iii i`- Re: @ SCOS Message Format ?1Rich
24 Feb 25             iii `* Re: @ SCOS Message Format ?8Rich
24 Feb 25             iii  `* Re: @ SCOS Message Format ?7Richard Heathfield
24 Feb 25             iii   `* Re: @ SCOS Message Format ?6Rich
25 Feb 25             iii    `* Re: @ SCOS Message Format ?5Richard Heathfield
25 Feb 25             iii     +- Re: @ SCOS Message Format ?1Richard Harnden
25 Feb 25             iii     `* Re: @ SCOS Message Format ?3Rich
25 Feb 25             iii      `* Re: @ SCOS Message Format ?2Richard Heathfield
25 Feb 25             iii       `- Re: @ SCOS Message Format ?1Rich
24 Feb 25             ii`* Re: @ SCOS Message Format ?2David Entwistle
24 Feb 25             ii `- Re: @ SCOS Message Format ?1Richard Heathfield
24 Feb 25             i`- Re: @ SCOS Message Format ?1David Entwistle
24 Feb 25             +- Re: @ SCOS Message Format ?1Richard Heathfield
24 Feb 25             `- Re: @ SCOS Message Format ?1Jan Panteltje

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