RE: What is the principle?

From: Michael Everson (
Date: Tue Mar 30 2004 - 21:12:41 EST

  • Next message: Rick McGowan: "Re: What is the principle?"

    At 18:04 -0800 2004-03-30, Kenneth Whistler wrote:

    >The bidirectional algorithm depends on a partition property. Every
    >code point that participates in the algorithm has to have *some*
    >value of that partition for the algorithm to be well-defined for
    >all encoded characters -- and that includes PUA characters, which
    >are encoded characters. The UTC could have chosen bc=ON or bc=BN
    >or bc=R or something completely stupid like bc=PDF instead of
    >bc=L as the default property for PUA characters, but "None of the
    >Above" was not an option. Based on their implementation experience
    >with use of PUA characters, bc=L made the most sense and was
    >the choice made by the UTC for the default.

    OK, but let's go back to Tengwar. What will give me a better result?
    Using PUA encoding for Tengwar, with its spacing letters, nonspacing
    diacritics, and RTL numbers, or putting Tengwar glyphs on defined
    Unicode characters which have properties that approximate what the
    Tengwar needs?

    My guess is the latter, unless PUA *properties* can be opened up as
    changeable by the user.

    Michael Everson * * Everson Typography *  *

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