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Re: [I18ndir] [art] Fwd: New Version Notification for draft-bray-unichars-04.txt

Steffen Nurpmeso <steffen@sdaoden.eu> Mon, 18 September 2023 18:52 UTC

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Date: Mon, 18 Sep 2023 20:15:12 +0200
Author: Steffen Nurpmeso <steffen@sdaoden.eu>
From: Steffen Nurpmeso <steffen@sdaoden.eu>
To: Tim Bray <tbray@textuality.com>
Cc: ART Area <art@ietf.org>, i18ndir@ietf.org, Steffen Nurpmeso <steffen@sdaoden.eu>
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Subject: Re: [I18ndir] [art] Fwd: New Version Notification for draft-bray-unichars-04.txt
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Steffen Nurpmeso wrote in
 <20230918181220.kbbSJ%steffen@sdaoden.eu>:
 |Tim Bray wrote in
 | <CAHBU6iuGukJS1XjvLPGBVxv1TAfjgxFi1zVTrpjpAuvKU0JgRA@mail.gmail.com>:
 ||On Sep 15, 2023 at 1:43:53 PM, Steffen Nurpmeso <steffen@sdaoden.eu> \
 ||wrote:
 ||>     Noncharacters and legacy controls are unlikely to cause software
 ||>     failures, but they cannot usefully be displayed to humans, and \
 ||>     can be
 | ...
 ||> For the purpose of "usefully displaying to humans" Unicode has the
 ||> dedicated code points U+2400 "SYMBOL FOR NULL" - U+2421 "SYMBOL
 ||> FOR DELETE", plus U+2424 - U+2426.
 ||
 ||That’s horrible. I’m not convinced that “useful” applies.
 |
 |Sure it is, you need to visualize them shall they are part of data
 |to be displayed?
 ...
 |I have yet to encounter a font that does not support them.␇

The last character is U+0007 aka US-ASCII (those again) BEL.
'Up to you to decide whether it is useful not to see it.

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)

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