Re: Question about the directionality of "Old Hungarian" (document N3531)

From: Michael Everson (
Date: Mon Nov 03 2008 - 17:46:29 CST

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    On 3 Nov 2008, at 23:43, Kent Karlsson wrote:

    > Michael Everson wrote:
    >> I think you should look at the Old Italic proposal and
    >> discussion, Kent.
    > I know. That is why there is a loophole, but only a loophole,
    > in the bidi algorithm. It covers (badly) Old Italic, which is
    > encoded as LTR, when overriden as RTL to (sometimes, only
    > sometimes, using some as yet unheard of higher-level-protocol
    > mechanism; I can imagine them, just haven't seen any) produce
    > mirrored glyphs for the Old Italic letters.

    "The font" is supposed to do that. We've always been told this.

    > It does NOT cover the RTL case, as I wrote. There is not
    > even a loophole (which I think is a bad approach anyway) in
    > the bidi algorithm that would cover Old Hungarian as RTL
    > overridden as LTR to even sometimes produce mirrored glyphs.

    Michael Everson *

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