Re: Greek chars encoded twice -- why?

From: Mark Davis ☕ (mark@macchiato.com)
Date: Thu Feb 18 2010 - 11:26:34 CST

  • Next message: Jon Hanna: "Re: Greek chars encoded twice -- why?"

    We probably should add to the FAQ the following information.

    1. The duplicate accented characters encoded as a result of Greek national
    body requests in ISO 10646 in the process of the merger with Unicode, nearly
    20 years ago. This is despite the fact that the equivalent characters were
    already encoded.

    http://unicode.org/cldr/utility/list-unicodeset.jsp?a=
    \p{sc=greek}%26\p{nfcqc=n}

    However, they are not in canonical form, and when mapped to NFC (the
    recommended format), they are converted to the normal characters. Example:

    http://unicode.org/cldr/utility/transform.jsp?a=::nfc;+(.)+
    >+%26hex($1)+\u00a0+%26name($1)&b=\u1F71

    2. As to the uppercase forms, the consortium has decided that any
    language-specific casing information should be in the Unicode locales
    project (CLDR). People can submit a proposal for exactly how the casing
    should work for Greek or other languages at
    http://unicode.org/cldr/trac/newticket. Such a proposal should completely
    specify the desired processing not only for UPPERCASING, but also
    Titlecasing and lowercasing.

    Mark

    On Thu, Feb 18, 2010 at 08:25, Apostolos Syropoulos
    <ijdt.editor@gmail.com>wrote:

    >
    >
    > 2010/2/18 Jon Hanna <jon@hackcraft.net>
    >
    > Apostolos Syropoulos wrote:
    >>
    >>> Not really as this makes no sense! The whole issue
    >>> seems to me as yet another Unicode error.
    >>>
    >>
    >> What way would you have provided round-trip compatibility with previous
    >> encodings?
    >>
    >>
    > Do you consider this absolutely necessary, because I don't! I am using
    > Unicode for my
    > books and articles and I have to do many tricks to get things right...
    >
    > A.S.
    >
    >
    > --
    > Apostolos Syropoulos
    > 366, 28th October Str.
    > GR-671 00 Xanthi, GREECE
    >
    >

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