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Re: Elisp: What does ''nil mean?


From: Thomas Gehrlein
Subject: Re: Elisp: What does ''nil mean?
Date: 16 May 2003 13:35:35 +0200
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.1

David Kastrup <address@hidden> writes:

> Thomas Gehrlein <address@hidden> writes:
> 
> > The following line is from easy-menu-create-menu:
> > 
> > ((eq keyword :active) (setq enable (or arg ''nil)))
> > 
> > It is part of a (cond ...).
> > 
> > What does "''nil" mean?
> 
> The same as '(quote nil), an unevaluated list with the two members
> quote and nil.

Is this the same as (quote (quote nil))?

Why would you quote nil and not evaluate it?  And if you evaluate it: Isn't nil
the same as (quote nil)?

Thomas


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