Re: fundamental-mode-hook

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

Karl Fogel wrote:
> "Lennart Borgman (gmail)" <lennart.borgman@gmail.com> writes:
>> The elisp manual
>>
>>   (info "(elisp) Major Mode Conventions")
>>
>> says that
>>
>>   Each major mode should have a normal "mode hook" named
>>   `MODENAME-mode-hook'.
>>
>> fundamental-mode does not have such a hook.
> 
> Do you have a use in mind for such a hook, or is the inconsistency
> just bugging you?  (Not a facetious question, I'm honestly trying to
> figure out if the situation is a problem or not.)
> 
> In simple.el, fundamental-mode's definition is pretty tiny:
> 
>    (defun fundamental-mode ()
>      "Major mode not specialized for anything in particular.
>    Other major modes are defined by comparison with this one."
>      (interactive)
>      (kill-all-local-variables)
>      (unless delay-mode-hooks
>        (run-hooks 'after-change-major-mode-hook)))
> 
> Hmm, for one thing, I'm not sure why it doesn't just say
> 
>    (delay-mode-hooks 'after-change-major-mode-hook)
> 
> instead of checking the variable delay-mode-hooks manually.  Aside
> from that, it would be pretty easy to stick a run-hooks call in there,
> but would it really help anyone do anything they couldn't do before?


I am not sure what to answer at the moment. I just found this 
inconsistency when I tried to check if a function was a major mode 
function. I tested to see if the hook variable existed (probably not the 
best way, but that is what I did).

I then remembered that there are no hook for new buffers. Are they not 
set up in fundamental-mode?

BTW, there are more major modes missing this hook: Info-mode, xml-mode 
is what I have noticed so far.