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From: Markus Triska <triska@gmx.at>
Newsgroups: gmane.emacs.help
Subject: Re: Finding Unused Identifiers
Date: Fri, 03 Mar 2006 14:31:54 +0100
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Hi Pascal,

Pascal Bourguignon wrote:

>    (set-difference defvars refered)))

In this example, ab is referred to although the token "ab" appears only 
once:

(defvar ab 0)

(set (intern (concat "a" "b")) 1)


All the best,
Markus.