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From: David Moore <dmoore@UCSD.EDU>
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Subject: Re: Feature request: display group parameter
Date: 06 Dec 1996 08:25:52 -0800
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In-Reply-To: Lars Magne Ingebrigtsen's message of 06 Dec 1996 12:40:24 +0100
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Lars Magne Ingebrigtsen <larsi@ifi.uio.no> writes:

> Wesley.Hardaker@sphys.unil.ch writes:
> 
> > Lars> You could limit the summaries to articles that don't have the
> > Lars> "E" mark in some summary hook?
> > 
> > Or is there a better way...  Possibly:
> > 
> > ((gnus-summary-display-hook (progn 
> > 		(add-hook 'gnus-summary-display-hook 'limit-me-damn-it)
> >                 gnus-summary-display-hook)))
> 
> This will modify the global versin of the hook, so that's not good.
> 
> ...
> (gnus-summary-display-hook (limit-me-damn-it))
> ...

How about:
((gnus-summary-display-hook (cons 'limit-me-damn-it
				  gnus-summary-display-hook)))

Which avoids the side-affect operations of add-hook, or:
((gnus-summary-display-hook gnus-summary-display-hook)
 (dummy (add-hook 'gnus-summary-display-hook 'limit-me-damn-it)))

if you really want to call add-hook.

-- 
David Moore <dmoore@ucsd.edu>       | Computer Systems Lab      __o
UCSD Dept. Computer Science - 0114  | Work: (619) 534-8604    _ \<,_
La Jolla, CA 92093-0114             | Fax:  (619) 534-1445   (_)/ (_)
<URL:http://oj.egbt.org/dmoore/>    | Solo Furnace Creek 508 -- 1996!