Re: Bidi Mirroring and Ogham (was: Multiple Directions)

From: Ernest Cline (
Date: Fri May 14 2004 - 15:56:53 CDT

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    > [Original Message]
    > From: Michael Everson <>
    > To: <>
    > Date: 5/14/2004 3:51:40 PM
    > Subject: Re: Bidi Mirroring and Ogham (was: Multiple Directions)
    > At 15:26 -0400 2004-05-14, Ernest Cline wrote:
    > >Perhaps Ogham characters need to have the Bidi Mirroring property
    > >for proper display when they are presented in a RTL fashion? Then
    > >the slants could be reversed and the marks above the line become
    > >marks below the line and vice versa.
    > Good gods.

    If you take an Ogham inscription done around the rim of a stone and
    represent it in a LTR fashion, a logical way to do so would be to make
    the outer edge the top edge and the inner edge the bottom edge.
    Indeed, that appears to be what happened. Similarly, if one were
    to try to represent it in an RTL fashion instead of a LTR fashion,
    would it not make sense to do so in a manner that would make the
    inner edge the top edge and the outer edge the bottom edge?
    That is what mirroring would cause to happen as I described it.
    Anything that Unicode has to say about RTL Ogham is going
    to extremely arbitrary in any case and not the usual practice,
    since it is not normally represented in RTL fashion.

    You have clearly indicated earlier that a simple reversal is not
    acceptable. I presume from the above you don't think that mirroring
    is acceptable (I am assuming that "Good gods." was not intended
    to mean "Brilliant! That's what Unicode should be doing!")
    So for those who find a need to represent Ogham in RTL, how
    would you propose that it be done?

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