Re: Decomposing kelvin?

From: Theodore H. Smith (delete@elfdata.com)
Date: Fri Jun 10 2005 - 08:15:22 CDT

  • Next message: Dominikus Scherkl: "RE: Decomposing kelvin?"

    212A;KELVIN SIGN;Lu;0;L;004B;;;;N;DEGREES KELVIN;;;006B;

    that looks wrong to me. Maybe it should look like this:

    212A;KELVIN SIGN;Lu;0;L;<compat> 004B;;;;N;DEGREES KELVIN;;;006B;

    On 10 Jun 2005, at 14:05, Dominikus Scherkl wrote:

    >> The field 004B tells us, that U+212A decomposes to U+004B, correct?
    >>
    > Yes.
    >
    >
    >
    >> If so, then this seems wrong to me.
    >>
    > No, it's a "compatibility decomposition", meaning if you can't
    > represent
    > it in your environment, simply show a 'K'.

    http://www.unicode.org/Public/UNIDATA/UCD.html tells me differently:

    The tags supplied with certain decomposition mappings generally
    indicate formatting information. Where no such tag is given, the
    mapping is canonical. Conversely, the presence of a formatting tag
    also indicates that the mapping is a compatibility mapping and not a
    canonical mapping. In the absence of other formatting information in
    a compatibility mapping, the tag is used to distinguish it from
    canonical mappings.

    In some instances a canonical mapping or a compatibility mapping may
    consist of a single character. For a canonical mapping, this
    indicates that the character is a canonical equivalent of another
    single character. For a compatibility mapping, this indicates that
    the character is a compatibility equivalent of another single
    character. The compatibility formatting tags used are:

    Tag
    Description

    <font>
    A font variant (e.g. a blackletter form).
    <noBreak>
    A no-break version of a space or hyphen.
    <initial>
    An initial presentation form (Arabic).
    <medial>
    A medial presentation form (Arabic).
    <final>
    A final presentation form (Arabic).
    <isolated>
    An isolated presentation form (Arabic).
    <circle>
    An encircled form.
    <super>
    A superscript form.
    <sub>
    A subscript form.
    <vertical>
    A vertical layout presentation form.
    <wide>
    A wide (or zenkaku) compatibility character.
    <narrow>
    A narrow (or hankaku) compatibility character.
    <small>
    A small variant form (CNS compatibility).
    <square>
    A CJK squared font variant.
    <fraction>
    A vulgar fraction form.
    <compat>
    Otherwise unspecified compatibility character. 

    --
http://elfdata.com/plugin/ Industrial strength string processing,  
made easy.
"All things are logical. Putting free-will in the slot for premises in
a logical system, makes all of life both understandable, and free."

    This archive was generated by hypermail 2.1.5 : Fri Jun 10 2005 - 08:16:55 CDT