Help needed with post-command-hook

Help needed with post-command-hook

[Thorsten Jolitz]

Hi List, 

I have three questions wrt `post-command-hook':

 - Is `post-command-hook' triggered when an interactive function is
   called non-interactively?

 - If not, what would be the equivalent hook for `funcall`, i.e. the
   Emacs 'post-funcall-hook'? I could not find one. Many functions
   change or insert, but some just move point, so using a post change or
   post insert hook would not cover all cases (or would moving point
   trigger a post change hook?).

 - When is `post-command-hook' triggered? When I (e.g.)
   `call-interactively' an Org command in a temporary Org-mode buffer,
   and a function that exits that temp-buffer was added to the local
   `post-command-hook', I would expect that once the Org command is
   done that 'exit' function is called. But instead the temp buffer
   still sits there, and its my next user action (e.g. typing C-n) that
   then triggers the hook and calls the 'exit' function. So it seems
   `post-command-hook' is triggered when another command is called, not
   when current command returns control? 

-- 
cheers,
Thorsten

Re: Help needed with post-command-hook

[Stefan Monnier]

>  - Is `post-command-hook' triggered when an interactive function is
>    called non-interactively?

No.  It's not even run when you do (call-interactively 'foo).
It's run by the command-loop (which does: read-key, lookup-command, run
pre-command-hook, run command, run post-command-hook, ...).

What are you trying to do?


        Stefan

Re: Help needed with post-command-hook

[Barry Margolin]

In article <mailman.8853.1410687492.1147.help-gnu-emacs@gnu.org>,
 Thorsten Jolitz <tjolitz@gmail.com> wrote:

> Hi List, 
> 
> I have three questions wrt `post-command-hook':
> 
>  - Is `post-command-hook' triggered when an interactive function is
>    called non-interactively?
> 
>  - If not, what would be the equivalent hook for `funcall`, i.e. the
>    Emacs 'post-funcall-hook'? I could not find one. Many functions
>    change or insert, but some just move point, so using a post change or
>    post insert hook would not cover all cases (or would moving point
>    trigger a post change hook?).

There's no hook for all function calls. That would be way overkill.

If you want to do something after a specific function, advise it.

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

Re: Help needed with post-command-hook

[Thorsten Jolitz]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>  - Is `post-command-hook' triggered when an interactive function is
>>    called non-interactively?
>
> No.  It's not even run when you do (call-interactively 'foo).
> It's run by the command-loop (which does: read-key, lookup-command, run
> pre-command-hook, run command, run post-command-hook, ...).

ok, thanks.

> What are you trying to do?

I wanted to call a function in a temp-buffer and then close that temp
buffer after the function/cmd is done. And it seems to work now without
using any hooks, just by sequential functions calls (as expected). 

I suspect the reason it did not work yesterday has to do something with
the function/cmd that was actually called, not sure though what it was. 

So this question was kind of noise, sorry. 

-- 
cheers,
Thorsten

Re: Help needed with post-command-hook

[Thorsten Jolitz]

Barry Margolin <barmar@alum.mit.edu> writes:

> In article <mailman.8853.1410687492.1147.help-gnu-emacs@gnu.org>,
>  Thorsten Jolitz <tjolitz@gmail.com> wrote:
>
>> Hi List, 
>> 
>> I have three questions wrt `post-command-hook':
>> 
>>  - Is `post-command-hook' triggered when an interactive function is
>>    called non-interactively?
>> 
>>  - If not, what would be the equivalent hook for `funcall`, i.e. the
>>    Emacs 'post-funcall-hook'? I could not find one. Many functions
>>    change or insert, but some just move point, so using a post change or
>>    post insert hook would not cover all cases (or would moving point
>>    trigger a post change hook?).
>
> There's no hook for all function calls. That would be way overkill.
>
> If you want to do something after a specific function, advise it.

Ok, thanks for the tip. 

-- 
cheers,
Thorsten

Re: Help needed with post-command-hook

[Joost Kremers]

Thorsten Jolitz wrote:
> I wanted to call a function in a temp-buffer and then close that temp
> buffer after the function/cmd is done. And it seems to work now without
> using any hooks, just by sequential functions calls (as expected). 

Are you aware of the macro `with-temp-buffer'? :-)



-- 
Joost Kremers                                   joostkremers@fastmail.fm
Selbst in die Unterwelt dringt durch Spalten Licht
EN:SiS(9)

Re: Help needed with post-command-hook

[Thorsten Jolitz]

Joost Kremers <joost.m.kremers@gmail.com> writes:

> Thorsten Jolitz wrote:
>> I wanted to call a function in a temp-buffer and then close that temp
>> buffer after the function/cmd is done. And it seems to work now without
>> using any hooks, just by sequential functions calls (as expected). 
>
> Are you aware of the macro `with-temp-buffer'? :-)

yes, but things are a bit more complicated ...

-- 
cheers,
Thorsten

Re: Help needed with post-command-hook

[Phillip Lord]

Thorsten Jolitz <tjolitz@gmail.com> writes:
>> What are you trying to do?
>
> I wanted to call a function in a temp-buffer and then close that temp
> buffer after the function/cmd is done. And it seems to work now without
> using any hooks, just by sequential functions calls (as expected). 

`with-temp-buffer'

Phil