--- Begin Message ---
- To: unicode at unicode dot org
- Subject: New Public Review Issue: UAX #9 Proposed Update
- From: Rick McGowan <rick at unicode dot org>
- Date: Fri, 14 Oct 2005 13:39:22 -0700
- Authentication-results: mta208.mail.re2.yahoo.com from=unicode.org; domainkeys=neutral (no sig)
The Unicode Technical Committee has posted a new issue for public review
and comment. Details are on the following web page:
http://www.unicode.org/review/
Review periods for the new items close on October 28, 2005.
Please see the page for links to discussion and relevant documents.
Briefly, the new issue is:
80 Proposed Update to UAX #9: The Bidirectional Algorithm
The Unicode Bidi algorithm has allowed for a great deal of flexibility in
determining which characters are to be mirrored (see HL6
http://www.unicode.org/reports/tr9/tr9-16.html#HL6). Unfortunately, that
means that text that originates with one person may show up with the wrong
graphic to another, thus causing the text to be misinterpreted. The
proposal is to tighten up conformance by limiting overriding to
mathematical contexts, and at the same time adjusting the characters with
the Bidi_Mirrored property.
The UTC would like public feedback on whether to make this change, and
which characters should have the Bidi_Mirrored property. The following is a
possible change to the properties which bases the Bidi_Mirrored on the
open/close punctuation in Unicode. It excludes the math characters
(General_Category=Sm); implementations could tailor those characters to
mirror in a mathematical context. For further information and character
lists, see the background document for this issue.
If you have comments for official UTC consideration, please post them by
submitting your comments through our feedback & reporting page:
http://www.unicode.org/reporting.html
If you wish to discuss issues on the Unicode mail list, then please
use the following link to subscribe (if necessary). Please be aware
that discussion comments on the Unicode mail list are not automatically
recorded as input to the UTC. You must use the reporting link above
to generate comments for UTC consideration.
http://www.unicode.org/consortium/distlist.html
Regards,
Rick McGowan
Unicode, Inc.
--- End Message ---