Re: C-SPC works; C-u C-SPC doesn't. How could be?

[Bruno Barbier <brubar.cs@gmail.com>]

Ypo <ypuntot@gmail.com> writes:

> Thanks, Bruno
>
> I've debugged it manually because (keymap-lookup) doesn't seem to exist 
> in my emacs, if that's possible.

Sorry, my bad. 'keymap-lookup' will only exist in 29.  I should have
used 'lookup-key':

     (lookup-key global-map (kbd "C-u"))
     
>
> The problem comes from:
>
> (define-key org-mode-map (kbd "C-u C-n") #'org-next-item)
>
> If I eval that line, "C-u C-SPC" stops working on org-mode.
>
> Same problem in runemacs -q. Is it a bug?

That line is the problem. It's hiding the real "C-u"
(universal-argument) in org-mode buffers. Once you've lost the standard
meaning of "C-u", you can't use C-u C-SPC and all other functions.

Maybe you could use the keys that are already defined by org, to move
between list items ?


    ‘S-<UP>’
    ‘S-<DOWN>’
         Jump to the previous/next item in the current list, but only if
         ‘org-support-shift-select’ is off(6).  If not, you can still use
         paragraph jumping commands like ‘C-<UP>’ and ‘C-<DOWN>’ to quite
         similar effect.

Bruno


>
>
> El 25/06/2022 a las 9:47, Bruno Barbier escribió:
>> Hi Ypo,
>>
>> Ypo<ypuntot@gmail.com>  writes:
>>
>>> Hi, Bruno
>>>
>>> Yes, I tried your assertion for bug-hunter, but it didn't work.
>>>
>>> (unless (eq 'universal-argument (keymap-lookup global-map "C-u"))
>>>          (error "C-u has been redefined"))
>>>
>> I'm not sure in what way it didn't work and I didn't try bug-hunter yet.
>>
>>
>> FWIW, just in case it might help you, when I have such a problem, I just
>> define a function, something like:
>>
>>     (defun my-check-bug ()
>>       "Throw an error when C-u is not the universal argument in org-mode."
>>       (with-temp-buffer
>>         (org-mode)
>>         (unless (eq 'universal-argument (keymap-lookup global-map "C-u"))
>>           (error "C-u has been redefined"))))
>>
>>
>> Then I add:
>>
>>     (my-check-bug)
>>     
>> everywhere in my init files and I start emacs with --debug-init.
>>
>> Good luck,
>>
>> Bruno
>>
>>