Re: Handling invisible text in bidirectional display

[David Kastrup <dak@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: David Kastrup <dak@gnu.org>
>>
>> There also is a difference between invisibility and display properties
>> here: if there is a display property on a letter "x", it is hard to see
>> why several consecutive images should be reordered to be L->R.  Of
>> course, one should argue that in the presence of L->R, people should
>> take care to use the right "shadowed" character to match the intended
>> left/rightness of the image.  But I think that is not really sane.  If
>> we want display property material to have an explicit direction, it
>> should be set with properties, not by some magic derivation from the
>> underlying invisible text.
>
> I don't understand the use-case, and without it this reads like a
> charade (what "x"? which "shadowed" characters? what images?).  Please
> show a complete example, then I'll be able to reason about it.

Just find some JPG file into an Emacs buffer and look at the underlying
presentation.

-- 
David Kastrup