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Re: Overlay behavior change

From: Eli Zaretskii
Subject: Re: Overlay behavior change
Date: Wed, 08 Jul 2020 19:25:40 +0300

> Date: Wed, 8 Jul 2020 17:12:23 +0200 (CEST)
> From: Gregory Heytings via "Emacs development discussions." 
> <emacs-devel@gnu.org>
> What I would have liked to see is something that is neither the previous 
> nor the current default behavior.  This idea will probably not be 
> considered (let's name it the attribute ":visualblock t"), but here it is:
> 1. calculate the overlay as it would have been displayed by Emacs 21 to 
> 26.
> 2. remove all pixel columns on the right *and on the left* of the overlay 
> which have no "content" (that is, no characters on the right, whitespace 
> characters on the left).
> This way the block (of code) would really be displayed on the screen as a 
> block, even a deeply nested one.  The above "algorithm" would work with 
> fixed and variable-width fonts, but could of course be made more efficient 
> for fixed-width fonts.

Feel free to submit a feature-request bug report about this.

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