From: Mike Ayers (mike.ayers@tumbleweed.com)
Date: Thu May 27 2004 - 18:25:20 CDT
> From: unicode-bounce@unicode.org [mailto:unicode-bounce@unicode.org]On
> Behalf Of fantasai
> Sent: Thursday, May 27, 2004 2:41 PM
> Since this interests me a bit more than the Phoenician thread...
> What do you consider vertical bidi, and why should it not be in
> Unicode?
"Vertical bidi" refers to the mixing of top to bottom(TTB) and
bottom to top(BTT) (note ironic mirrored nature of acronyms, which is
unintentional, and therefore all the more delicious) scripts in a vertical
layout. We had significant disussion of this issue. I was not able to
follow all of it, but what I noted was that it lead to several people trying
to determine a plausible case in which vertical bidi would be needed. I am
not certain what the conclusion was there - anyone?
In any case, you could generally use the standard bidi algorithm for
vertical bidi by simply defining a reference direction. There may have been
more to it than that - again, I don't quite recall fully. Once it became
clear that a case of vertical bidi would only arise if someone forced the
issue, I lost interest.
/|/|ike
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