Re: Encoding the graphemes of the SignWriting Script with the x-ISWA-2010

From: Steve Slevinski (
Date: Fri Jan 07 2011 - 09:23:07 CST

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    On 1/7/11 2:06 AM, William_J_G Overington wrote:
    > I notice that the Unicode proposal is for some characters in plane 1.
    > I notice that there is also some encoding of characters into plane 15, which is a Private Use Area plane.
    For the purpose of standardization and the widest agreement possible,
    I've stratified my document and split my encoding model into 2 parts:
    symbol encoding (sections 2 - 4) and script encoding (appendix B).

    Symbol encoding uses the x-ISWA-2010 coded character set, proposed for
    plane 1. A lite markup will be required to represent structure and layout.

    The script encoding described in section 5.2 and appendix B represents
    structure and layout using the x-BSW3 coded character set, a superset of
    the x-ISWA-2010. For data interchange, it is possible to send plain
    SignWriting text only using characters from plane 15.

    All of the characters proposed on plane 1 are mirrored on plane 15. The
    additional characters on plane 15 include the 4 structural markers and
    the number characters.

    > Please correct me if I have misunderstood, yet it seems to me that the idea is to use those characters with a plane 15 encoding on a permanent basis, rather than to propose that they be encoded into regular Unicode.
    In the future, there may be a second Unicode proposal to handle the
    script encoding issues of structure and layout.

    The split between symbol encoding and script encoding is stark. I
    believe the symbol encoding can be universally accepted by the writers
    of the script, the academic researchers, and the Unicode consortium.

    Standardized symbolset -
    Standardized symbol encoding -

    Standardization of the symbol encoding is the focus of the initial
    Unicode proposal. This standard will lay the foundation for the
    discussions about the script encoding model.

    Thanks for the input,

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