Re: Coptic/Greek DIS-Unification Proposal

From: Michael Everson (
Date: Fri Nov 28 1997 - 03:55:19 EST

Ar 13:16 -0800 1997-11-27, scríobh John Cowan:
>1) It would be politically difficult to allocate 50 or more codepoints
>on the BMP for a dead language when many living languages are not yet
>supported there. (24 Greek letters plus at least one more Coptic-unique
>letter, plus who knows how many more, times 2 for upper/lower case.)

Maybe 6 more. Please look at the roadmap. There is some space left. Lots of
living languages are being worked on. Sometimes we have information on some
languages and not on others, so we want to do things with the some we know
about. In this case I think we are discussing an error correction.

>2) It would be technically obnoxious to have some Coptic letters on the BMP
>and others on the Astral Planes.

Technical obnoxiousness shall certainly be avoided. Note that this means
that Ethiopic extensions should go in the BMP.

>3) It would be suicidal to move the existing Coptic letters to the
>Astral Planes.

I don't know about suicidal, but we promised we would never do that kind of

>4) Some folks may have already encoded Coptic text using the Greek
>unification, and dis-unification would make their data putatively
>invalid (a new implementation would make it come out as Greek).
>This was the argument used for not unifying the EURO SIGN with

UCS is not so widely available as all that, and everyone knows we are at
the beginning of things.

>But in fact I favor dis-unification.

Funny, isn't it?

Michael Everson, EGT *
15 Port Chaeimhghein Íochtarach; Baile Átha Cliath 2; Éire (Ireland)
Gutháin:  +353 1 478-2597, +353 1 283-9396
27 Páirc an Fhéithlinn; Baile an Bhóthair; Co. Átha Cliath; Éire

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