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bug#6774: Cut and paste with C-w/mouse-2 not working?
From: |
Stefan Monnier |
Subject: |
bug#6774: Cut and paste with C-w/mouse-2 not working? |
Date: |
Fri, 13 Aug 2010 12:38:06 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
>> I'm more worried about the semantics than about the performance impact.
>> Doing the "set PRIMARY" from C-w and friends is much easier and robust.
> How so? Just moving the cursor because of a C-f involves a lot more X calls
> that taking ownership of the PRIMARY selection. I don't understand how
> robustness is affected.
The issue with robustness (when talking about post-command-hook) doesn't
have much to do with heavy X calls (or performance), unless of course
those calls can hang.
The issue of robustness is that post-command-hook is not always run when
you want or need it. E.g. you may want to run your hook if point is
moved by a process-filter (or you may want to run that hook when the
user is queried via y-or-n-p), but post-command-hook is not involved
there. And OTOH post-command-hook may very well be run in the middle of
a command (if it reads from the minibuffer, for example).
These corner cases make post-command-hook brittle.
I think that for select-active-region to work the way you seem to want
it to work (i.e. auto-select as soon as the region is active and
non-empty), the "right hook" to use would be something like
a redisplay-hook (i.e. an active region is selected if/when it gets
displayed). I would welcome such a hook, BTW, especially if it gets run
*before* redisplay. Could be useful for reveal-mode and maybe also to
move the region-face handling to Elisp.
Stefan
- bug#6774: Cut and paste with C-w/mouse-2 not working?, (continued)
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Kenichi Handa, 2010/08/12
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Jan Djärv, 2010/08/12
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Kenichi Handa, 2010/08/12
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Stefan Monnier, 2010/08/12
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Kenichi Handa, 2010/08/12
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Stefan Monnier, 2010/08/12
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Jan Djärv, 2010/08/12
- bug#6774: Cut and paste with C-w/mouse-2 not working?,
Stefan Monnier <=
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Eli Zaretskii, 2010/08/13
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Kenichi Handa, 2010/08/13
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Stefan Monnier, 2010/08/13
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Kenichi Handa, 2010/08/16
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Jan Djärv, 2010/08/16
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Kenichi Handa, 2010/08/16
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Jan Djärv, 2010/08/17
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Eli Zaretskii, 2010/08/17
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Jan Djärv, 2010/08/17
- bug#6774: Cut and paste with C-w/mouse-2 not working?, Eli Zaretskii, 2010/08/17