From: Eli Zaretskii <eliz@gnu.org>
To: Tassilo Horn <tsdh@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: [ELPA] New package proposal: visual-path-abbrev.el
Date: Tue, 05 Mar 2019 18:21:30 +0200 [thread overview]
Message-ID: <83va0xcmwl.fsf@gnu.org> (raw)
In-Reply-To: <8736o1iqsf.fsf@gnu.org> (message from Tassilo Horn on Tue, 05 Mar 2019 11:01:04 +0100)
> From: Tassilo Horn <tsdh@gnu.org>
> Cc: emacs-devel@gnu.org
> Date: Tue, 05 Mar 2019 11:01:04 +0100
>
> > Caveat: I didn't try any of my suggestions, so I cannot be sure they
> > will work, although they should, of course. (I did add the above
> > caveats to the ELisp manual, so they are now documented.)
>
> I'm now using option 1 and set the visual-file-name-abbrev overlay
> property which I'm using to know which overlays are mine to (random)
> instead of just t on the current and the last file name point was one in
> a post-command-hook function.
>
> That seems to do the trick
I'm glad it worked for you.
> although it's a bit sluggish when, e.g., pressing and holding C-n in
> a *grep* buffer in column 1 (which is probably the worst case).
>
> I haven't yet debugged what's the slow part but I guess it is the new
> predicate `visual-file-name-abbrev--abbrev-visually-shorter-p' which
> ensures that the abbreviation is only displayed if it is visually
> shorter than the normal file name, i.e., it takes into account the
> current font and the replacement ellipsis. The standard one … is
> twice as wide as a "normal" character on a non-terminal frame.
It is, of course, best to make functions on post-command-hook as
speedy as possible. But don't be surprised if you find out that is
not the main reason for the sluggishness: you've just disabled a very
important redisplay optimization, so you should expect some hit on the
responsiveness front. These optimizations are there for a reason,
even in these days of super-fast CPUs.
> Other than that, do you think it's ok to add this package to ELPA? If
> so, is the (C) FSF and "This file is part of GNU Emacs" correct for an
> ELPA(-only) package?
I'll let Stefan answer this. And I believe we have recently started
asking contributors to say explicitly in email or in the file that
they contribute the package to Emacs, for legal purposes. So please
do.
Thanks.
next prev parent reply other threads:[~2019-03-05 16:21 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-02 11:05 [ELPA] New package proposal: visual-path-abbrev.el Tassilo Horn
2019-03-02 11:34 ` Eli Zaretskii
2019-03-02 14:59 ` Tassilo Horn
2019-03-03 9:46 ` Tassilo Horn
2019-03-03 13:48 ` Stefan Monnier
2019-03-03 15:11 ` Eli Zaretskii
2019-03-03 15:52 ` Tassilo Horn
2019-03-03 17:18 ` Eli Zaretskii
2019-03-03 17:55 ` Tassilo Horn
2019-03-04 18:03 ` Eli Zaretskii
2019-03-05 10:01 ` Tassilo Horn
2019-03-05 16:21 ` Eli Zaretskii [this message]
2019-03-05 18:32 ` Tassilo Horn
2019-03-08 5:49 ` Stefan Monnier
2019-03-08 14:02 ` Tassilo Horn
2019-03-08 17:34 ` Tassilo Horn
2019-03-08 19:01 ` Stefan Monnier
2019-03-08 22:18 ` Stefan Monnier
2019-03-09 6:52 ` Tassilo Horn
2019-03-08 18:52 ` Stefan Monnier
2019-03-02 21:25 ` Leo Liu
2019-03-03 9:25 ` Tassilo Horn
2019-03-04 0:23 ` Leo Liu
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