Empty paths

Hi all,

 

While implementing the syntax parser in OpenXRI, I have
stumbled upon an issue with empty paths and canonical XRIs.

 

Firstly, from what I read in the specs (section 2.2.5
Canonicalization), “XRI references do not have a single canonical form”.
In which case, I believe that converting an XRI reference to IRI normal form
should NOT muck with the optional reassignable subsegment delimiter. It also
follows that we should try to preserve empty path segments as much as possible in
the parser.

 

I am having trouble with the “correct” parser
behavior when it encounters an empty path, such as xri://@foo/. When it comes
to comparison, should we treat xri://@foo and xri://@foo/ as the same? What
about xri://@foo/ and xri://@foo// (double slashes)?

 

I remember Gabe had brought up this issue (or something
similar), and I beat myself up for not paying attention then.

 

Thanks.

 

=wil (http://xri.net/=wil)