From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: Make highlight-symbol.el perfect?
Date: Thu, 11 Apr 2013 20:54:10 -0400 [thread overview]
Message-ID: <jwvobdkmv9a.fsf-monnier+gmane.emacs.help@gnu.org> (raw)
In-Reply-To: CACeWA3j89TUxrhGLqwLANX+jWUX2uHsPoBwuCdijf1-vwgUQwQ@mail.gmail.com
> Isn't that what overlays would do? How is text-property planes better?
You can partly do that with overlays, yes.
But the current implementation of overlays comes with some performance
problems when you have many overlays (we also know how to fix it, which
would also be a nice GSoC project).
Furthermore, the main issue with resolving conflicts between multiple
packages wanting to use the same property is how to *merge* those
conflicting property values.
My proposal for text-property planes resolves those conflicts by merging
the values via Elisp functions invoked when the text-properties are
applied. This could also work for overlays, of course, but it's
currently missing not only from text-properties but also from overlays.
Stefan
prev parent reply other threads:[~2013-04-12 0:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-11 14:25 Make highlight-symbol.el perfect? Steven Degutis
2013-04-11 15:45 ` Stefan Monnier
2013-04-11 18:01 ` Steven Degutis
2013-04-12 0:54 ` Stefan Monnier [this message]
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