Re: Disable typo-mode in org source code blocks

[Tim Cross <theophilusx@gmail.com>]

Hi John,

this is a greet bit of info.

My first thought when the question was asked was "Hmm, what you need is
some sort of facility that could run a function when the cursor moves in
and out of a region". I then discounted the idea because of the amount
of supporting functionality which would need to be developed.  The
pointer to cursor-sensor sounds like exactly the supporting
functionality I was thinking of. Should have guessed Emacs would have
something already!

Using org's font-lock mechanism as the 'trigger' is a great idea too.

I can see some great uses for this package as I have some pretty ugly
hacks which could be simplified if cursor-sensor works reliably.

thanks for the pointer.

Tim


John Kitchin <jkitchin@andrew.cmu.edu> writes:

> You can use cursor-sensor mode for this if you have emacs 26ish. The idea
> is you set cursor-sensor functions on a region that do something depending
> on whether you enter or leave the region. Below, I tie into the org font
> lock mechanisms to add these properties so that when you enter, typo mode
> gets turned off, and when you leave it gets turned back on. I use a similar
> approach to put src-block specific key maps on src blocks. There are two
> examples of functions that are "lightly tested". I can see why you would
> want this disabled in src blocks, it never puts the right quote in!
>
> (defvar scimax-src-block-cursor-sensor-functions '()
>   "List of functions to run in cursor-sensor mode. .")
>
>
> (defun scimax-add-cursor-sensor-functions-to-src-blocks (limit)
>   "Function used in font-lock to add cursor-sensor functions."
>   (let ((case-fold-search t))
>     (while (re-search-forward org-babel-src-block-regexp limit t)
>       (let* ((beg (match-beginning 0))
>     (end (match-end 0))
>     (cursor-functions (or
> (get-text-property beg 'cursor-sensor-functions)
> `())))
> (cl-loop for func in scimax-src-block-cursor-sensor-functions do
> (when (not (memq func cursor-functions))
>   (pushnew func cursor-functions)))
> (add-text-properties
> beg end `(cursor-sensor-functions ,cursor-functions))))))
>
>
> (define-minor-mode scimax-cursor-sensor-mode
>   "Minor mode to turn on cursor-sensor-mode for org src-blocks."
>   :init-value nil
>   (if scimax-cursor-sensor-mode
>       (progn
> (add-hook 'org-font-lock-hook
>  #'scimax-add-cursor-sensor-functions-to-src-blocks t)
> (add-to-list 'font-lock-extra-managed-props 'cursor-sensor-functions)
> (cursor-sensor-mode +1))
>     (remove-hook 'org-font-lock-hook
> #'scimax-add-cursor-sensor-functions-to-src-blocks)
>
>     (cursor-sensor-mode -1))
>   (font-lock-fontify-buffer))
>
> (defun scimax-cs-message-1 (win prev-pos sym)
>   (message "%s %s %s"
>   win
>   prev-pos
>   sym))
>
> (defun scimax-src-toggle-typo-mode (win prev-pos sym)
>   (if (eq sym 'entered)
>       (typo-mode -1)
>     (typo-mode +1)))
>
>
> (add-to-list 'scimax-src-block-cursor-sensor-functions
>     'scimax-cs-message-1)
>
> (add-to-list 'scimax-src-block-cursor-sensor-functions
>     'scimax-src-toggle-typo-mode)
>
>
>
>
> John
>
> -----------------------------------
> Professor John Kitchin
> Doherty Hall A207F
> Department of Chemical Engineering
> Carnegie Mellon University
> Pittsburgh, PA 15213
> 412-268-7803
> @johnkitchin
> http://kitchingroup.cheme.cmu.edu
>
>
>
> On Mon, Sep 2, 2019 at 8:21 AM <garjola@garjola.net> wrote:
>
>> On Mon 02-Sep-2019 at 10:35:02 +02, Tim Cross <theophilusx@gmail.com>
>> wrote:
>> > I think Eric is correct. There is also another reason. If you edit the
>> > source blocks with C-', then any escaping needed (such as putting a ','
>> > before '*') will also be automatically handled, plus of course you get
>> > all the programing mode goodness.
>> >
>> > Fraga, Eric <e.fraga@ucl.ac.uk> writes:
>> >
>> >> On Monday,  2 Sep 2019 at 09:01, garjola@garjola.net wrote:
>> >>> I am using typo-mode (https://github.com/jorgenschaefer/typoel) in my
>> >>> org buffers (actually with a hook for text-mode), but I would like to
>> >>> disable it in source code blocks.
>> >>>
>> >>> I have been unable to find a hook to do so (I understand that
>> >>> org-src-mode-hook is used when editing with ‘C-c '’ but not in the org
>> >>> buffer).
>> >>
>> >> I am not entirely sure what you want here.  If it is that you want to
>> >> turn off typo-mode when point moves into a src block but while still in
>> >> the whole org buffer, then you cannot do this AFAIK.  The best approach
>> >> is to always edit src blocks using C-c ' (org-edit-special) and then you
>> >> can use org-src-mode-hook to do what you want.
>>
>> Thanks to both of you. I usually edit in the separate buffer, but I
>> don’t for one liners. It’s a pity that this is not possible, but I can
>> live with that!
>>
>> Thanks again!
>> --
>>
>>


--
Tim Cross