Re: Handling invisible text in bidirectional display

 > Yes, that's right.  (In fact, region highlight already works in the
 > bidi version, so I just verified that 3 stretches of text are
 > highlighted in this case

Does this work with mouse highlighting too?  IIRC display code handles
that specially.  So if you draw a corresponding overlay with a
`mouse-face' property there should be three stretches highlighted when
the mouse is over one of these stretches.

martin