Re: sub and superscripts: without «_» and «^»

[Uwe Brauer <oub@mat.ucm.es>]

>>>>> "Tassilo" == Tassilo Horn <tsdh@gnu.org> writes:

> Stefan Monnier <monnier@iro.umontreal.ca> writes:
>>> I asked this on auctex-dev but it might be question concerning core
>>> functionality of GNU emacs:
>> 
>> The necessary core functionality has been present for a long time:
>> just add the proper `invisible' property to the chars you don't want
>> to see.

> I guess what Uwe wants is that `prettify-symbols-mode' in a (La)TeX
> buffer (with stock latex-mode or AUCTeX; doesn't really matter) could
> have the option to make the ^ and _ invisible, too.

> I already told him that this is not what p-s-m is meant for.  But it's
> easy enough to write a custom font-lock rule for that:

> (defun th/invisible-super-sub-scripts ()
>   (interactive)
>   (cl-pushnew 'invisible font-lock-extra-managed-props)
>   (font-lock-add-keywords
>    nil
>    '(("[^\\\\]\\([_^]\\)" (1 '(face nil invisible t) t))))
>   (font-lock-flush))

> Uwe, if you want you could do something like that:

> (add-hook 'prettify-symbols-mode-hook
> 	  (lambda ()
> 	    (when (eq major-mode 'latex-mode)
> 	      (th/invisible-super-sub-scripts))))

Cool!! Precisely what I wanted thanks very much!