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Re: Handling invisible text in bidirectional display

From: David Kastrup
Subject: Re: Handling invisible text in bidirectional display
Date: Mon, 18 Jan 2010 07:42:53 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.90 (gnu/linux)

Eli Zaretskii <address@hidden> writes:

>> From: David Kastrup <address@hidden>
>> 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

David Kastrup

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