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Re: Invisibility bug: `invisible' vs `display'

From: David Kastrup
Subject: Re: Invisibility bug: `invisible' vs `display'
Date: Thu, 22 Feb 2007 12:42:12 +0100
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

address@hidden (Kim F. Storm) writes:

> Daniel Brockman <address@hidden> writes:
>> When folding stretches of code, it does not make sense to
>> have images in between cluster all together and stick out
>> in spite of the invisibility of the region.
> That is clearly a bug.
>> This patch fixes the problem for me.
> Thank you.
> Mixing invisible and display properties -- with the desire to actually
> get the effects of the display property looks very obscure to me, and
> cannot image that any code is actually relying on such functionality.
> I think the change is safe, so I installed it.

Sigh.  If you use preview-latex on material where _some_ of it is made
invisible using TeX-fold-mode, the desired outcome will be to get the
display, and get it once only.

I can't vouch for the patch being either a step in the right or wrong

But I'd clearly like to see fewer "I think it should work and can't
imagine anybody actually using it, anyway" patches at this point in
the game.

If we don't have the time or resources of assessing the ramifications
of a patch, there is really little incentive to not rather try them
out in the course of version 22.2.

David Kastrup

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