The package below has been added to tug.ctan.org and should soon be at your favorite mirror.
Thanks, Will. Jim Hefferon Saint Michael's College
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The following information was provided by our fellow contributor:
Name of contribution: inversepath Author's name: Will Robertson Location on CTAN: /macros/latex/contrib/inversepath Summary description: Calculate inverse file paths License type: lppl
Announcement text: ---------------------------------------------------------------------- Calculate inverse relative paths. E.g., from /one/two/three.tex or /one/two/ to ../../. Could be easily converted to Plain TeX if I wasn't lazy. ----------------------------------------------------------------------
This package is located at http://tug.ctan.org/tex-archive/macros/latex/contrib/inversepath . More information is at http://tug.ctan.org/cgi-bin/ctanPackageInformation.py?id=inversepath (if the package is new it may take a day for that information to appear). We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .