Re: U+2047 double question mark collation

From: Ake Persson (ake.persson@mimer.se)
Date: Wed Jan 15 2003 - 07:28:44 EST

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    Vadim Godunko wrote:
    > Hi,
    >
    > I have a problem with creating collation key for U+2047 (double question
    mark).
    >
    > Explicit collation keys for this symbol is absent in allkeys.txt.
    >
    > In UnicodeData.txt this symbol have compatibility decomposition map.
    >
    > 2047: ... :<compat> 003F 003F: ...
    >
    > Based on this and as defined in UTR #10 Unicode Collation Algoriphm this
    > symbol must have these collation keys:
    >
    > 003F [*024E.0020.0004]
    > 003F [*024E.0020.0004]
    >
    > But in CollationTest_NON_IGNORABLE.txt assumes that symbol have implicit
    > collation key [FBC0.0020.0002] [A047.0000.0000].
    >
    > What is incorrect?

    The header in allkeys.txt states: version 3.1.1. There are 1016 characters
    defined in Unicode 3.2, which are not mapped (yet). See:
    http://www.unicode.org/Public/3.2-Update/DerivedAge-3.2.0.txt

    I believe the version and repertoire of the Unicode Collation Algorithm
    (UCA) will be synchronized with versions of the Unicode Standard starting
    with Version 4.0.

    Best regards,
    Åke Persson

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