Re: how to temporarily remove a function from a hook?

[Barry Margolin]

In article <87ab3elgpl.fsf@galatea.local>,
 pjb@informatimago.com (Pascal J. Bourguignon) wrote:

> Kevin Rodgers <kevin.d.rodgers@gmail.com> writes:
> 
> > What is the right way to temporarily remove a function from a hook?
> >
> >
> > My best guess is:
> >
> > (let ((foo-hook (progn (remove-hook 'bar 'foo-hook) foo-hook)))
> >   ...)
> 
> 
> This won't work, because remove-hook actually modifies the outside
> variable foo-hook.
> 
> 
> Write simply:
> 
> (let ((foo-hook (remove 'bar foo-hook)))
>    ...)

Or:

(let ((foo-hook foo-hook))
  (remove-hook 'bar 'foo-hook)
  ...)

This doesn't violate the abstraction of remove-hook.

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
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