Public Review Issues Update: UAX #9 Bidi Algorithm

From: Rick McGowan (
Date: Tue Dec 13 2005 - 14:54:29 CST

  • Next message: Addison Phillips: "RE: Globalized lists"

    The Unicode Technical Committee has revised Public Review Issue #80,
    including the background document, and issued another proposed update of
    UAX #9.

    Details are on this page:


    The closing date for this issue has been revised to January 30, 2006.

    Please see the page for links to discussion and relevant documents.
    Briefly, the 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 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 eliminating overriding of bidi
    mirroring, and at the same time extending 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 proposed
    change is to retain the set of characters currently having Bidi_Mirrored
    property, and add some additional characters with similar properties. 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:

    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.

            Rick McGowan
            Unicode, Inc.

    This archive was generated by hypermail 2.1.5 : Tue Dec 13 2005 - 15:01:19 CST