U+303B VERTICAL IDEOGRAPHIC ITERATION MARK

[Mark Davis ⌛]

There is no consistent policy of that sort, as evidenced by the data.

   - There are many* characters in PVALID that are not particularly useful,
   and may be harmful*.
   - There are many* characters in DISALLOWED that may be useful, and are
   not particularly harmful*.

What we have is a rough compromise that tries to get a large majority of the
most useful characters into PVALID and some of the harmful characters into
DISALLOWED, using Unicode properties and exceptions to make the cut so that
we don't have to examine and assess all of the characters individually.

CONTEXT* characters are a bit different, since they are assessed
individually. The particularly harmful characters should be in CONTEXT*,
with constraints on their usage. What we actually have in CONTEXT* is very
hit-and-miss. This particular character causes no more harm than a vast
array of other PVALID characters, and should just be PVALID.

Mark


On Wed, Jul 15, 2009 at 05:55, Andrew Sullivan <ajs at shinkuro.com> wrote:

> On Wed, Jul 15, 2009 at 02:43:23PM +0200, Patrik Fältström wrote:
>
> >> writing.  So it is rarely used in electrical writing for
> >> communication.
> >> Thus, VERTICAL IDEOGRAPHIC ITERATION MARK should be DISALLOWED.
> >
> > Can I get a consensus on whether this should continue to be CONTEXTO or
> > DISALLOWED?
> >
> > It is today CONTEXTO.
>
> I thought our general principle had been, "Not DISALLOWED unless
> harmful."  This argument seems to be "DISALLOWED because not useful."
> Therefore, CONTEXTO is correct, I'd say.
>
> Sane registry policy everywhere will still probably set this to
> registry-disallowed.
>
> A
> --
> Andrew Sullivan
> ajs at shinkuro.com
> Shinkuro, Inc.
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