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RE: Replacing huge hidden selection when pasting text
From: |
Drew Adams |
Subject: |
RE: Replacing huge hidden selection when pasting text |
Date: |
Sat, 2 Jan 2016 19:10:36 -0800 (PST) |
> > > Apologies for not following this thread. But offhand I'd say that
> > > there's your problem right there: you enable `delete-selection-mode'
> > > but you disable `transient-mark-mode'. That should be a no-no.
> >
> > Oh my dear, I managed to hit a no-no! But if it's a no-no why is it
> > possible in the first place? Why ain't there a single warning? Where
> > are emacs's no-nos listed? Where is the checkbox and message saying "I
> > agree not to do any emacs no-no, even if I don't know what they are"?
> > Are you serious?
>
> I think there was much confusion in the thread, no doubt did the
> nihilistic tone of Alexandre inhibit a fruitful discussion.
>
> Drew only wanted to help. But I think he was wrong with what he said.
> I think it's ok to use the two modes at the same time. In the sentence
> Drew cited:
>
> When Delete Selection mode is enabled, Transient Mark mode is also
> ^^
> enabled, typed text replaces the selection if the selection is active,
> and DEL deletes the selection.
>
> I think there is an "and" missing, and the sentence means something
> different from what we thought.
In fact, until Emacs 24.4, `delete-selection-mode' explicitly turned
on `transient-mark-mode', and the doc string was as I quoted it (and
it was correct). No "and" was missing; t-m-mode was really enabled
by d-s-mode. Emacs 24.3:
(if (not delete-selection-mode)
(remove-hook 'pre-command-hook 'delete-selection-pre-hook)
(add-hook 'pre-command-hook 'delete-selection-pre-hook)
(transient-mark-mode t)) ; <=========
Starting with Emacs 24.4, d-s-mode no longer turns on t-m-mode.
> The current docstring (in my Emacs 25) says:
> When Delete Selection mode is enabled, typed text replaces the
> selection if the selection is active. Otherwise, typed text is just
> inserted at point regardless of any selection.
>
> With `transient-mark-mode' off, you can mark a region (i.e., turn on
> transient mark mode temporarily) by hitting C-SPC twice. Only then does
> delete-selection-mode replace the region. In any other case (when the
> region is not visible, i.e. not active) transient-mark-mode is just off,
> and delete-selection-mode should not delete the region, never.
I think you are right. This is not the original design of d-s-mode,
but was done when "temporary t-m-mode" was added (presumably precisely
to avoid the kind of gotcha that bit Alexandre).
> So I think the behavior he sometimes gets could indeed be a bug. Would
> be good to have a bug report, and it would be good if Alexandre would
> try to find a recipe so that we can find out what's going on (this could
> also be caused by some add on package) and fix the issue when necessary.
Agreed. (And maybe the doc string of `transient-mark-mode' should,
like the Emacs manual (node `Disabled Transient Mark'), mention
temporary activation of t-m-mode (via C-SPC C-SPC or C-u C-x C-x).
- Re: Replacing huge hidden selection when pasting text, (continued)
- Re: Replacing huge hidden selection when pasting text, Marcin Borkowski, 2016/01/02
- Message not available
- Re: Replacing huge hidden selection when pasting text, Alexandre Oberlin, 2016/01/02
- RE: Replacing huge hidden selection when pasting text, Drew Adams, 2016/01/02
- Message not available
- Re: Replacing huge hidden selection when pasting text, Alexandre Oberlin, 2016/01/02
- Re: Replacing huge hidden selection when pasting text, Michael Heerdegen, 2016/01/02
- Message not available
- Re: Replacing huge hidden selection when pasting text, Alexandre Oberlin, 2016/01/02
- Re: Replacing huge hidden selection when pasting text, Michael Heerdegen, 2016/01/02
- Re: Replacing huge hidden selection when pasting text, Robert Thorpe, 2016/01/02
- RE: Replacing huge hidden selection when pasting text, Drew Adams, 2016/01/02
- Re: Replacing huge hidden selection when pasting text, Michael Heerdegen, 2016/01/02
- RE: Replacing huge hidden selection when pasting text,
Drew Adams <=
- RE: Replacing huge hidden selection when pasting text, Drew Adams, 2016/01/02
- Re: Replacing huge hidden selection when pasting text, Yuri Khan, 2016/01/02
- Re: Replacing huge hidden selection when pasting text, Random832, 2016/01/03
- Message not available
- Re: Replacing huge hidden selection when pasting text, Alexandre Oberlin, 2016/01/13
- Re: Replacing huge hidden selection when pasting text, Stefan Monnier, 2016/01/14
- Message not available
- Re: Replacing huge hidden selection when pasting text, Alexandre Oberlin, 2016/01/14
- Re: Replacing huge hidden selection when pasting text, Kaushal Modi, 2016/01/14
- Re: Replacing huge hidden selection when pasting text, Eli Zaretskii, 2016/01/14
- Re: Replacing huge hidden selection when pasting text, Michael Heerdegen, 2016/01/14
- Re: Replacing huge hidden selection when pasting text, Eli Zaretskii, 2016/01/14