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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.help
Subject: Re: traverse a directory
Date: Tue, 01 Jan 2008 22:22:00 +0200
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	(message from Xah Lee on Tue, 1 Jan 2008 08:51:33 -0800 (PST))
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> From: Xah Lee <xah@xahlee.org>
> Date: Tue, 1 Jan 2008 08:51:33 -0800 (PST)
> 
> if i want to recurse into a directory, do i have to write my own?

Take a look at the package find-lisp.el, which is bundled with Emacs
22.  It has infrastructure for what you want.  In particular, there's
the `find-lisp-find-files-internal' function that recursively
traverses a directory.