Re: Unicode Stability

From: Peter Kirk (peterkirk@qaya.org)
Date: Wed Mar 02 2005 - 12:38:28 CST

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    On 02/03/2005 17:56, Peter Constable wrote:

    >>From: Peter Kirk [mailto:peterkirk@qaya.org]
    >>
    >>
    >
    >
    >
    >>The accepted proposal for HOLAM HASER FOR VAV does change the meaning
    >>
    >>
    >of
    >
    >
    >>existing data, from correctly spelled to a spelling error.
    >>
    >>
    >
    >No; the existing character is ambiguous in usage contexts where no
    >distinction is made: it is "holam", not "holam male". Existing data
    >cannot have made a distinction as there was no separate character with
    >which to make any distinction. That data is just as valid as it ever
    >was.
    >
    >
    >
    The character is indeed ambiguous in Unicode 4.0. But it must no longer
    be ambiguous in Unicode 4.1 or 5.0, because otherwise that would leave
    two equally valid ways of spelling the same word. At the very least the
    old representation, in this case Holam Haser on VAV represented as
    HOLAM, should be clearly deprecated as an obsolete spelling no longer to
    be supported.

    Of course this lies at the heart of why disunification by adding new
    characters is generally a bad idea - although I would accept that it
    might in practice be the best way to go especially for obscure scripts
    in which there is very little existing data.

    The situation with QAMATS QATAN is a bit different, because this is an
    optional distinction and a recent innovation, not a disunification of
    two historically distinct characters which have sometimes been conflated.

    -- 
    Peter Kirk
    peter@qaya.org (personal)
    peterkirk@qaya.org (work)
    http://www.qaya.org/
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