After a lot of good coffee an better guinness (just joking) and after spitting through some massive ammounts of docs, we finally found the right Apache module calls. 
use Apache;

my $r = shift;
my $uri = $ENV{REQUEST_URI};
my $path = $r->lookup_uri($uri)->filename;

[download]
note: we couldn't use the 'pwd' because we use this as a default in the apache config:
DirectoryIndex    index.html index.mpl /cgi-bin/listing.mpl
so pwd would be the cgi-bin directory and not the requested directory

udpate (broquaint): s|<(/)?pre>|<${1}code>|g

In reply to Re: Physical location of a requested URI by iq-0
in thread Physical location of a requested URI by iq-0

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