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Re: Emacs contributions, C and Lisp

From: Eli Zaretskii
Subject: Re: Emacs contributions, C and Lisp
Date: Sun, 16 Feb 2014 23:00:25 +0200

> Date: Sun, 16 Feb 2014 21:06:02 +0200
> From: Dmitry Gutov <address@hidden>
> CC: address@hidden, address@hidden
> On 16.02.2014 20:55, Eli Zaretskii wrote:
> > So?  It is still an Emacs buffer that displays text, like almost
> > everything else in Emacs.  Display of small images alongside that text
> > is a no-brainer.
> I was thinking it might be difficult to update the images and their 
> positions while the buffer is being edited. But suppose that's solved.

They are just 'display' text properties or overlays, so they can
easily move (or not move, as the case may be) with the text.

> If the function definition you'd like to fold starts at column 0, where 
> would the image be rendered?

One obvious possibility is in the margins.

Or you could put a before-string on each line, which would then shift
the source to the right.

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