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Re: bug#22873: Can we support multiple Cursors?
From: |
Stefan Monnier |
Subject: |
Re: bug#22873: Can we support multiple Cursors? |
Date: |
Fri, 04 Mar 2016 21:16:16 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
> I'm pretty sure you don't want my multiple-cursors.el as an official
> package.
Being in GNU ELPA doesn't mean it's "official". It does grant some kind
of respectability, but the main things it does is:
- make sure the code has a reliable license (usually, not a bug deal
for the end user).
- make sure it can be installed out of the box without any extra customization.
- gets to be seen (and can be fixed) by Emacs's maintainers, so tends to
follow the conventions a bit better.
- gets to be seen by whoever watches elpa-diffs, so might be ever so
slightly less at risk of malware.
- gets to be seen by Emacs's maintainers so they may become aware of
some issues that might require changes to the core.
...
> - allowing rendering of faux cursors. Right now I'm using inverted overlays
> to create a block cursor (only).
Seems like a good solution. If this bumps into problems, we should
probably try and improve overlay support rather than try to add
specific "multi-cursor" support in the redisplay engine.
> (defun mc/execute-command (cmd)
> "Run command, simulating the parts of the command loop that makes sense
> for fake cursors."
> (setq this-command cmd)
> (run-hooks 'pre-command-hook)
> (unless (eq this-command 'ignore)
> (call-interactively cmd))
> (run-hooks 'post-command-hook)
> (when deactivate-mark (deactivate-mark)))
FWIW, we could/should work to move execute-command as well as the
read-eval loop from C to Elisp.
Note that the above is "wrong" also in the sense that execute-command does
not run pre/post command hooks (this is done by the read-eval loop
instead, around the call to command-execute).
Stefan
- Can we support multiple Cursors?, John Wiegley, 2016/03/03
- Re: Can we support multiple Cursors?, Marcin Borkowski, 2016/03/03
- Re: bug#22873: Can we support multiple Cursors?, Richard Stallman, 2016/03/03
- Re: bug#22873: Can we support multiple Cursors?, Marcin Borkowski, 2016/03/03
- Re: bug#22873: Can we support multiple Cursors?, Richard Stallman, 2016/03/04
- Re: bug#22873: Can we support multiple Cursors?, Stefan Monnier, 2016/03/04
- Re: bug#22873: Can we support multiple Cursors?, Magnar Sveen, 2016/03/04
- Re: bug#22873: Can we support multiple Cursors?,
Stefan Monnier <=
- Re: bug#22873: Can we support multiple Cursors?, Richard Stallman, 2016/03/05
- Re: bug#22873: Can we support multiple Cursors?, John Wiegley, 2016/03/05
- Re: bug#22873: Can we support multiple Cursors?, Clément Pit--Claudel, 2016/03/06
- Re: bug#22873: Can we support multiple Cursors?, Stefan Monnier, 2016/03/07
- Re: bug#22873: Can we support multiple Cursors?, Clément Pit--Claudel, 2016/03/06
- Re: bug#22873: Can we support multiple Cursors?, Stefan Monnier, 2016/03/08
- Re: bug#22873: Can we support multiple Cursors?, Richard Stallman, 2016/03/05