Re: how to best make characters invisible in a org-derived mode

["Andreas Röhler" <andreas.roehler@easy-emacs.de>]

Am 02.05.2013 00:58, schrieb Christian Wittern:
> Hi Andreas, Hi John
>
> Thank both of you for trying to get me on track.
>
> On 2013-05-01 16:43, Andreas Röhler wrote:
>> maybe have a look how
>>
>> ar-hide-bracketed-in-line-atpt
>>
>> for example is implemented.
> I can't actually find this function, but I get the general point from the files in Emacs Werkstatt.
>
> What tripped me up originally that simply setting a region to 'invisible worked in fundamental mode, but not in org-mode.
>
> I found the solution after I finally understood what
> (info "(elisp) Invisible Text")
> was trying to tell me:
> - first set the desired region(s) to an arbitrary symbol, like my-symbol:
>       (overlay-put (make-overlay beginning end)   'invisible 'my-symbol)
> - next add this symbol to 'invisibility' spec :
>       (add-to-invisibility-spec 'my-symbol)
>
> After straighting this out I am now a happy camper, enjoying my uncluttered display.
>
> All the best,
>
> Christian
>
>
>

ar-hide-bracketed-in-line-atpt seems vanished indeed, something got broken. Thanks pointing at.

Andreas