I'm working on a module which is required to be portable (at least Unix, Windows and VMS). It is making extensive use of File::Spec and friends.

However, I'm looking at code that handles arbitrary paths that the caller has passed in. There is a distinct possibility that the path might contain updir segments (i.e. '..' in Unix). I want to reduce this to a canonical path. I tried File::Spec->canonpath, and was disappointed to find that it does not deal with '..', nore does rel2abs, nor does no_upwards - all of which suggest that they might do the job.

Have I missed something? Or is there another CPAN module which achieves this? I will write one if there isn't.

--
I'm Not Just Another Perl Hacker

In reply to How to get a true canonical path by rinceWind

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