[EMAIL PROTECTED] wrote:
A page that contained both Mongolian and vertical CJK might require
a vertical bidirectional algorithm, but AFAIK that question has not
yet arisen.
CJK and Mongolian are both top-to-bottom scripts, so there is no bidi
issue involved. You only get bidi problems if scripts on a single
line go in opposite directions. In vertical text, this can happen
with English and Chinese as well as Chinese and Arabic, and /there/'s
the problem -- English and Chinese are both LTR scripts. Unicode BIDI
does need to be extended to handle vertical directionality properly.
See the first two sections of
http://fantasai.inkedblade.net/style/discuss/vertical-bidi
for a brief intro. I'll try to write up something more Unicode-oriented
this week.
No, I am not asking for vertical text controls; that's what CSS's
'block-progression' property is for.
~fantasai
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