From: Eli Zaretskii <eliz@gnu.org>
To: Alan Mackenzie <acm@muc.de>
Cc: emacs-devel@gnu.org
Subject: Re: Native display of line numbers
Date: Mon, 19 Jun 2017 05:28:46 +0300 [thread overview]
Message-ID: <83d1a0yald.fsf@gnu.org> (raw)
In-Reply-To: <20170618201933.GC22671@acm> (message from Alan Mackenzie on Sun, 18 Jun 2017 20:19:33 +0000)
> Date: Sun, 18 Jun 2017 20:19:33 +0000
> Cc: emacs-devel@gnu.org
> From: Alan Mackenzie <acm@muc.de>
>
> > Maybe follow-mode could provide a buffer-local variable with the value
> > of that point, and the display engine could simply access that
> > variable?
>
> Or something like that. How about a buffer local variable provided by
> the display engine called something like point-window? Any function
> (here, we're talking mainly follow-mode) could set this to a window, and
> the meaning would be "all relative line numbers should be based from the
> value of point in this window". This would save the display engine from
> having to check the existence of the variable (follow-mode might not be
> loaded), and updating the value of the variable in follow-mode would be
> straightforward.
That's fine as well, but might be harder to implement, and also
calling Lisp from within the display engine is something I think
should be kept to a minimum.
With my suggestion, checking whether Follow mode is one of buffer's
minor modes is simple enough, and Follow mode should (AFAIU) always
know where's its "point" located, so having a variable with that value
should also be simple.
next prev parent reply other threads:[~2017-06-19 2:28 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-17 15:12 Native display of line numbers Eli Zaretskii
2017-06-17 16:41 ` Stefan Monnier
2017-06-17 18:25 ` Eli Zaretskii
2017-06-17 21:25 ` Stefan Monnier
2017-06-18 14:21 ` Eli Zaretskii
2017-06-17 16:52 ` Kaushal Modi
2017-06-17 17:20 ` Kaushal Modi
2017-06-17 17:42 ` Eli Zaretskii
2017-06-17 17:41 ` Eli Zaretskii
2017-06-17 21:16 ` Stefan Monnier
2017-06-18 4:27 ` Kaushal Modi
2017-06-18 14:40 ` Eli Zaretskii
2017-06-17 20:27 ` Alan Mackenzie
2017-06-17 21:26 ` Stefan Monnier
2017-06-18 2:35 ` Eli Zaretskii
2017-06-18 11:42 ` Alan Mackenzie
2017-06-18 12:16 ` Colin Baxter
2017-06-18 15:06 ` Eli Zaretskii
2017-06-18 15:47 ` Alan Mackenzie
2017-06-18 16:11 ` Eli Zaretskii
2017-06-18 20:19 ` Alan Mackenzie
2017-06-19 2:28 ` Eli Zaretskii [this message]
2017-06-17 20:47 ` Sébastien Le Callonnec
2017-06-18 2:38 ` Eli Zaretskii
2017-06-18 10:51 ` Sébastien Le Callonnec
2017-06-17 21:32 ` Mathias Dahl
2017-06-17 22:12 ` James Nguyen
2017-06-18 14:31 ` Eli Zaretskii
2017-06-19 2:25 ` James Nguyen
2017-06-19 15:32 ` Eli Zaretskii
2017-06-19 16:33 ` James Nguyen
2017-06-18 14:28 ` Eli Zaretskii
2017-06-18 14:42 ` Andreas Schwab
2017-06-18 8:44 ` martin rudalics
2017-06-18 8:58 ` martin rudalics
2017-06-18 14:46 ` Eli Zaretskii
2017-06-19 2:39 ` Eli Zaretskii
2017-06-19 8:04 ` martin rudalics
2017-06-19 15:13 ` Eli Zaretskii
2017-06-18 11:03 ` Yuri Khan
2017-06-18 14:54 ` Eli Zaretskii
2017-06-18 16:54 ` Yuri Khan
2017-06-18 19:00 ` Eli Zaretskii
2017-06-19 5:32 ` Yuri Khan
2017-06-19 15:51 ` Eli Zaretskii
2017-06-24 10:32 ` Eli Zaretskii
2017-06-18 19:41 ` Daniele Nicolodi
2017-06-18 20:04 ` Eli Zaretskii
2017-06-18 20:48 ` Daniele Nicolodi
2017-06-19 2:31 ` Eli Zaretskii
2017-06-19 3:07 ` Daniele Nicolodi
2017-06-19 15:03 ` Eli Zaretskii
2017-06-19 2:44 ` Clément Pit-Claudel
2017-06-19 4:15 ` Eli Zaretskii
2017-06-19 4:30 ` Clément Pit-Claudel
2017-06-18 22:20 ` Scott Jaderholm
2017-06-19 2:34 ` Eli Zaretskii
2017-06-19 5:49 ` Scott Jaderholm
2017-06-19 16:56 ` Stephen Leake
2017-06-19 17:11 ` Eli Zaretskii
2017-06-19 18:43 ` Stephen Leake
2017-06-19 19:32 ` Eli Zaretskii
2017-06-19 18:39 ` Alan Mackenzie
2017-06-19 19:28 ` Eli Zaretskii
2017-06-19 19:38 ` Alan Mackenzie
2017-06-19 19:51 ` Eli Zaretskii
2017-06-22 15:02 ` Filipe Silva
2017-06-22 15:38 ` Eli Zaretskii
2017-06-22 15:46 ` Filipe Silva
2017-06-23 16:23 ` Stefan Monnier
2017-06-23 21:04 ` Eli Zaretskii
2017-06-23 21:24 ` Stefan Monnier
2017-06-24 7:18 ` Eli Zaretskii
2017-06-22 16:27 ` Yuri Khan
2017-06-22 16:56 ` Stephen Berman
2017-06-23 11:10 ` Filipe Silva
2017-06-23 11:17 ` Filipe Silva
-- strict thread matches above, loose matches on Subject: below --
2017-06-17 23:44 Joseph Garvin
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