emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: Bernt Hansen <bernt@norang.ca>
To: Carsten Dominik <dominik@science.uva.nl>
Cc: emacs-orgmode@gnu.org, Robert Goldman <rpgoldman@sift.info>
Subject: Re: question about org-region-active-p
Date: Wed, 17 Dec 2008 11:44:14 -0500	[thread overview]
Message-ID: <87d4fq4uqp.fsf@gollum.intra.norang.ca> (raw)
In-Reply-To: <531B6C47-6267-4530-ACF8-F2C1548159CE@uva.nl> (Carsten Dominik's message of "Wed\, 17 Dec 2008 17\:29\:23 +0100")

Hi Carsten,

Just to add to the discussion, transient-mark-mode is off for me in GNU
Emacs 22.2.1 (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of
2008-11-09 on raven, modified by Debian.

If I start with emacs -q transient-mark-mode is nil.

I've explicitly set it on in my .emacs (as of the beginning of this
discussion) and that makes things work better for me.

,----[ end of my .emacs ]
| (transient-mark-mode 1)


Carsten Dominik <dominik@science.uva.nl> writes:

> Dear Robert,
> also region-active-p requires transient-mark-mode to be active, if you
> look
> at the definition of the region-active-p function, you will see that.
> transient-mark-mode is on by default in Emacs.  Why did you turn it
> *off* in the
> first place?????
> - Carsten
> On Dec 17, 2008, at 3:12 PM, Robert Goldman wrote:
>> Carsten Dominik wrote:
>>> Hi Robert,
>>> no, I do not think this would make sense, to step out with
>>> an error, because all the commands that need a region will
>>> also work without one.  This is how regions work in Emacs.
>>> If you find places in the documentation where this could
>>> be made clearer, let me know.
>> Thank you Carsten for the response.  I am still inclined to think that
>> this case is one where the user should get some warning because it's
>> in
>> that bad class of bug-like situations where code quietly does
>> something
>> that the user does not expect and that contradicts the documentation.
>> On the other hand, I can't see where one would raise an error.  It's
>> not
>> an error to call org-region-active-p without transient-mark-mode;
>> indeed
>> some libraries turn this on and off, and the user is entitled not to
>> use it.
>> The call to export isn't right, because the export command does not
>> give
>> the system any opportunity to infer whether the user intended to
>> operate
>> on a region or on the whole.  So there's no way to tell that the
>> user's
>> expectations are going to be violated.
>> The loading of org-mode isn't the right place, either, since the vast
>> majority of org-mode works just fine with t-m-m turned off.
>> I'm inclined to think that the answer is simply that one shouldn't
>> turn
>> transient-mark-mode off, ever.  This works for me, but I hate to think
>> of the next person coming along to fall into this same trap, from
>> which
>> the only means of escape is to inspect the source code and use the
>> debugger.
>> I would suggest a modification to the manual and will submit one, but
>> need clarification about one issue:  the use of t-m-m seems to be a
>> fallback for older emacsen that don't have region-active-p.  I have
>> such
>> an emacs, so I don't know --- does this mean that on newer emacsen
>> org-region-active-p will work even without transient-mark-mode?
>> Best,
>> Robert
> _______________________________________________
> Emacs-orgmode mailing list
> Remember: use `Reply All' to send replies to the list.
> Emacs-orgmode@gnu.org
> http://lists.gnu.org/mailman/listinfo/emacs-orgmode

  parent reply	other threads:[~2008-12-17 16:44 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-16  1:51 question about org-region-active-p Robert Goldman
2008-12-16  2:20 ` Samuel Wales
2008-12-16  7:53 ` Carsten Dominik
2008-12-16 15:43   ` Robert Goldman
2008-12-17  8:13     ` Carsten Dominik
2008-12-17 14:12       ` Robert Goldman
2008-12-17 16:29         ` Carsten Dominik
2008-12-17 16:38           ` Robert Goldman
2008-12-17 16:44           ` Bernt Hansen [this message]
2008-12-17 17:01             ` Carsten Dominik
2008-12-18 16:48               ` Robert Goldman
2008-12-19  8:39                 ` Carsten Dominik
2008-12-16 15:52 ` William Henney

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

  List information: https://www.orgmode.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87d4fq4uqp.fsf@gollum.intra.norang.ca \
    --to=bernt@norang.ca \
    --cc=dominik@science.uva.nl \
    --cc=emacs-orgmode@gnu.org \
    --cc=rpgoldman@sift.info \


* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox


This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).