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Subject: Re: (concat "/dir/name/" "foo") --> (expand-file-name "foo" "/dir/name/")
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>>>>> "PJ" == Paul Jarc <prj@po.cwru.edu> writes:

 PJ> In each particular case of deciding whether to use
 PJ> expand-file-name,

I don't think you should be making any such decision.

 PJ> you have to decide which file you would want: the file named
 PJ> literally by the string you've got, or the file named by the
 PJ> string's expansion.

If you think you should be able to suppress contraction of ../ for
some reason, make a bug report with enough justification.  I'm not
convinced.

 PJ> I was probably mistaken there, then.  

And, I think, elsewhere.  If in doubt, read the source.

 PJ> I can't find that node in my manual, but the Index node is
 PJ> inaccessible, so maybe my manual is broken.

Yes.  Please fix it and read the relevant parts.  If they're not
clear, please make a bug report.  I doubt we've changed much
significant in that area, but there is a tarball of a more recent
version of the Lisp manual somewhere on alpha.gnu.org.