Re: Plane 14 codes for language tagging?

From: Martin J. Duerst (
Date: Sat Jun 07 1997 - 13:14:28 EDT

On Sat, 7 Jun 1997, Frank da Cruz wrote:

> > > > My personal preference is for number 2. I kind of like Martin's proposal
> > > > for introducing a plain-text language tag using a control code, and I
> > > > think the existing control codes are fine.
> >
> > Good idea. Indeed the C1 area is not used in the Internet as far as I know.
> >
> There are still such things as terminals that use C1 control codes such as
> CSI, APC, OSC, etc (primarily VT220 and higher, which are the predominant
> types used by emulators such Kermit, Xterm, DECterm, etc). Do we intend that
> Unicode and terminal-to-host communication will become mutually exclusive
> concepts?

Frank - I understand your concerns. But one way of looking at what we
need is some tagging format possibly used in ACAP and IMAP, which
MUST not leak to other places. And what you probably worry about
is the C1 area in terms of octets (which is already gone with UTF-8)
and not the C1 character space in Unicode, which turns up as two bytes
in UTF-8.

Regards, Martin.

This archive was generated by hypermail 2.1.2 : Tue Jul 10 2001 - 17:20:34 EDT