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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: [Emacs-diffs] /srv/bzr/emacs/trunk r105295: *
	lisp/progmodes/etags.el (etags-file-of-tag, etags-tags-table-files)
Date: Tue, 02 Aug 2011 00:51:03 -0400
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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In-reply-to: <jwvmxfs8owk.fsf-monnier+emacs@gnu.org> (message from Stefan
	Monnier on Mon, 01 Aug 2011 23:39:17 -0400)
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> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Date: Mon, 01 Aug 2011 23:39:17 -0400
> Cc: emacs-devel@gnu.org
> 
> >   * lisp/progmodes/etags.el (etags-file-of-tag, etags-tags-table-files)
> >   (etags-tags-included-tables): Call `convert-standard-filename' on
> >   the file names contained in TAGS so that windows Emacs can handle
> >   TAGS files created by cygwin ctags.
> 
> Is that really right?
> I mean, convert-standard-filename should only ever be called on absolute
> file names, and we have no guarantee that file names in TAGS are
> absolute, do we?

convert-standard-filename can be called on any file name, not just an
absolute ones.  Of course, it will only do what Sam wants if the file
name begins with /cygdrive/, i.e. is absolute, but your assertion
seemed to be more general than that.