From: Timothy Partridge (
Date: Mon Oct 04 1999 - 16:11:44 EDT

Raven Travillian recently said to Michael Everson:

> Perhaps I'm misunderstanding what you mean, but wouldn't the Egyptian
> reversers have to affect the bidi directionality, since the direction you
> read the text from depends on what direction the characters are facing? Or
> do you mean that that issue is handled at a level other than Unicode?
> /Raven

I'd regard it a compulsary mirroring. Some symbols like "(" mirror when
going right-to-left (As do Egyptian characters.) This control would cause a
mirroring of the preceding character. If it is already mirrored because it
is in right-to-left text (and mirrors naturally) then it is mirrored again
back to its original orientation.

> Michael Everson:
> > Of course for Runic and Egyptian there have been proposed "glyph reversers"
> > that affect the glyph but not the bidi directionality, but it seems no one
> > wants to hear about this kind of thing for plain text.

I agree with Michael that it would be a useful addition to the standard.
Latin letters are mirrored too in some texts to make distinctive
abbreviations of names or common words. I think it should be part of the
standard rather than a rich text matter since mirroring is already part of
the standard and this control interacts with it.


Tim Partridge. Any opinions expressed are mine only and not those of my employer

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