Re: [Orgmode] Backspacing into folded items

[Andreas Röhler]

Hi,

posting forwarded herewith describes a design inconvenience, wich 
affects common hide-show- and outline-modes too.

As too different solutions have been proposed, let me suggest
"setting read-only property" rather than "use of a modification hook".

Setting hidden text read-only should be more simple, straitforward - as 
presumably hiding some code had some reasons.

Editing hidden code is an error, which should be signaled rather than 
cured via hook.


Andreas

--
https://code.launchpad.net/~a-roehler/python-mode
https://code.launchpad.net/s-x-emacs-werkstatt/


Am 26.08.2010 00:28, schrieb Martin Pohlack:
> Hi David,
>
> On 25.08.2010 11:22, David Abrahams wrote:
> > I've gotten myself in trouble several times today by backspacing after
> > an org-link that ends a headline.  That's a typical pattern for
> > editing an org-link, right?  Well it turns out that if the item is
> > folded, then the backspace writes over the end of the un-folded item
> > but **appears to have no effect**, and you can easily hit backspace
> > several times to test your sanity before you realize that something is
> > wrong, badly corrupting your file.
>
> I have had similar such accidents, but not involving links.  You
> probably backspaced into the "..."?
>
> > Seems to me that attempts to edit a folded item should either:
> >
> > a) restrict changes to the item's headline, or
> > b) unfold the item and do nothing
> >
> > Is there a way to set that up?
>
> Just two quick ideas from me here:
> * You could add a modification hook to all hidden areas to unfold them
>    on modification, or
> * You could set the read-only property for all hidden areas.  This could
>    be setup at the same location where hiding is done.
>
> See also here:
> http://www.gnu.org/software/emacs/elisp/html_node/Special-Properties.html#Special-Properties
>
> I proposed a patch for image overlay which show a related problem here:
> http://patchwork.newartisans.com/patch/31/
>
> Cheers,
> Martin