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Re: address@hidden: Overlay string not displayed on text with `display'

From: Kim F. Storm
Subject: Re: address@hidden: Overlay string not displayed on text with `display' property]
Date: Mon, 12 Jun 2006 09:37:54 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

YAMAMOTO Mitsuharu <address@hidden> writes:

>>>>>> On Sun, 11 Jun 2006 12:06:51 +0200, address@hidden (Kim F. Storm) said:
>> There may be _some_ overlay properties where it could make sense,
>> e.g. before-string and after-string, but doing a lot of work just to
>> make those work is not worth the trouble IMO.  So I think we should
>> simply document the current behaviour.
> I agree with you about not making nontrivial changes before the
> release.  But I don't think that it is not worth the trouble in the
> long term.  First, images are usually displayed using the `display'
> property, and overlay strings are not shown before them.  Second, the
> `composition' property shows the similar behavior as I mentioned in
> http://lists.gnu.org/archive/html/emacs-devel/2006-06/msg00119.html.

So it may be a question of specifically handling before-string and
after-string properties at the boundaries of display and composition
properties.  That _may_ be doable...

Kim F. Storm <address@hidden> http://www.cua.dk

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