Is somebody already using a PUA assignment for vertical text direction controls?
from http://www.unicode.org/faq/bidi.html#1 > [...] the choice of vertical layout is usually treated as a > formatting style; therefore, the Unicode Standard does not define > default rendering behavior for vertical text nor provide > directionality controls designed to override such behavior.
Thanks in advance for any hints,
I think the idea was that these don't belong in plain text. Markup languages have had vertical layout controls forever.
A./
