German sharp S uppercase mapping

[David Starner]

On Sun, Dec 1, 2024 at 11:27 PM Asmus Freytag via Unicode
<unicode at corp.unicode.org> wrote:
> What you are arguing is that one should not use that fallback any
> longer. I have no arguments with that, but in this case, the fallback
> was used.

Let me break it down into two points. Starting with the less
controversial, when counting the use of the capital ẞ, one should
count ß in uppercase contexts separately from SS.

Secondly, is there a position that ß should be used in uppercase
contexts, especially as opposed to using ẞ? If there's absolutely no
such movement, I think it clear that ß should be counted as a glyph
variant of ẞ in uppercase contexts. Fallbacks like that are almost
always normalized; older texts usually have long-s turned to s and
scriptorial abbreviations expanded when published, for example. If
there is a serious movement against ẞ and for ß as uppercase, then I'm
wrong. I'm certainly biased towards having neat upper-lowercase pairs.

-- 
The standard is written in English . If you have trouble understanding
a particular section, read it again and again and again . . . Sit up
straight. Eat your vegetables. Do not mumble. -- _Pascal_, ISO 7185
(1991)