Re: [I18ndir] [art] Just uploaded draft-bray-unichars-03

[Steffen Nurpmeso <[e-mail]>]

Asmus Freytag wrote in
 <[e-mail]>:
 |On 9/9/2023 4:44 PM, Tim Bray wrote:
 |> On Sep 9, 2023 at 9:58:43 AM, Steffen Nurpmeso <[e-mail]> \
 |> wrote:
 ...
 |>> In 2.2.2.2 i would not say "legacy controls", and that they are
 |>> "mostly obsolete".  ECMA-48 is very alive in at least the POSIX
 |>> aka Linux world, for many purposes, for example terminal
 ...
 |> So, in section 23.1 of [UNICODE] it says "There are 65 code points set 
 |> aside in the Unicode Standard for compatibility with the C0 and C1 
 ...
 |> work on. This clearly feels like “legacy” and “mostly obsolete” to me. 
 ...
 |Yes, for text data, these are legacy.

I think pure text data, when something can be achieved in a better
way by one of the new control characters.

 |However, there are modern implementations of terminals and their 
 |protocols would use ECMA48. (There's an ISO standard that matches ECMA48 
 |and which is cited in the Unicode Standard, I think it's 6942).

ISO 6429 i think you mean.

I want to point out that new things get developed, like OSC-8 to
embed references in plain text.  The new GNU roff added (only
partial, unfortunately) support for that, for example.

 |I keep suggesting that the way out for this is to acknowledge that some 
 |data streams have needs for these code points and if your spec must 

Yes please!

 |include them, but you would like to avoid surrogates and non-characters, 
 |that the answer would be to construct your own subset by extending the 
 |Useful-Assignables with as many control codes as you need (in an 
 |explicit list).

Oh i agree with you.  I would still exclude at least all sorts of
BOM, you cannot even transmit a "modern" text file using this
approach otherwise?

 |That gets your draft out of the business of creating subsets for edge 
 |cases, while simultaneously staying relevant even for people writing 
 |such specs. (I'd see that as a win-win).

And really one should not declare "programming errors" onto users
of this draft.

--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)