Assistance with REDO SYMBOL

[Peter Constable]

FYI, “variable font support” has a different meaning that will be more familiar to font developers than the meaning you had in mind.


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From: Unicode <unicode-bounces at corp.unicode.org> on behalf of Markus Scherer via Unicode <unicode at corp.unicode.org>
Date: Saturday, June 14, 2025 at 11:52 AM
To: Jukka K. Korpela <jukkakk at gmail.com>
Cc: 陶铂玉 <t.b.y.taoboyu at foxmail.com>, unicode <unicode at corp.unicode.org>
Subject: Re: Assistance with REDO SYMBOL
On Sat, Jun 14, 2025 at 11:19 AM Jukka K. Korpela via Unicode <unicode at corp.unicode.org<mailto:unicode at corp.unicode.org>> wrote:
I would first ask why UNDO SYMBOL was included

It was encoded in 1998 in ISO 10646 Amendment 22 Keyboard Symbols, and then published in 1999 in Unicode 3.0.
The first documents about "keyboard symbols" appear in 1997:
https://www.unicode.org/L2/L1997/Register-1997.html
https://www.unicode.org/L2/L1998/Register-1998.html
https://www.unicode.org/wg2/docs/n2100.htm

Many of these documents were on paper and don't have online versions.

In general, user interfaces do just fine with symbols as images, not needing encoded characters, and not wanting to rely on variable font support and glyph design.

markus
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