RE: [xri] Question on Tags and Cross References

Just to point out: =nika(+contact) is not valid XRI syntax in any version of XRI (1.0, 2.0, or the proposals for 3.0). As John pointed out, in 2.0, there must be a delimiter before the parentheses. So…

=nika*(+contact)

=nika!(+contact)

=nika/(+contact)

…are all valid XRI 2.0 syntax.

The proposal for global cross-references in XRI 3.0 does not change that – any XRI subsegment encapsulated in parentheses still needs to preceeded by a delimiter. However with global cross-references, “+contact” would no longer be required to be in parentheses. So =nike+contact would be valid XRI 3.0 syntax.

That said, the higher priority subject for this week is feedback on the XRI-as-relative-URI proposal at http://wiki.oasis-open.org/xri/XriAsRelativeUri. We need to finish discussing that and move that discussion to the TAG list before we move too far into the “XRI NG” discussion (which will be a major subject at our F2F).

=Drummond

From: Barnhill, William [USA] [mailto:barnhill_william@bah.com]
Sent: Wednesday, October 15, 2008 10:34 AM
To: John Bradley; Nika Jones
Cc: OASIS XRI TC
Subject: RE: [xri] Question on Tags and Cross References

I thought the items previously deferred until XRI 3.0 were now going to be rolled into XRI 2.0, since we need to change the spec and then resubmit for ratification?

On =nika+contact being a proposed XRI 3.0 direct concatenation and the proper 2.0 syntax being =nika/(+contact) I think the XRI TC (or XDI) need to define a profile of XRI usage that standardizes the format for contact information. The way that makes sense to me (to allow delegation without a redirect) is (for 2.0) =nika(+contact), or for (3.0) =nika+contact. There's going to be a fair number of profiles like this so might be better to just define a mechanism to publish a profile spec on XRI usage. The XDI dictionary might take care of that, but you probably don't want to introduce a dependency of XRI on XDI (which depends on XRI). The XDI dictionary could define a mechanism for publishing certain portions of it's content as an XRI pattern profile (or whatever you call it).

Bill Barnhill

From: John Bradley
Sent: Wed 10/15/2008 1:15 PM
To: Nika Jones
Cc: OASIS XRI TC
Subject: Re: [xri] Question on Tags and Cross References

=nika+contact is a proposed XRI 3.0 direct concatenation

The proper 2.0 syntax would be =nika/(+contact)

I am guessing that you intend +contact to be in the XRI path and not a authority sub segment?

=jbradley

On 15-Oct-08, at 10:04 AM, Nika Jones wrote:

Is there any difference between:

=nika+contact and =nika(+contact)

It seems I've seen the two in the wild... and I'm wondering if there is a difference or not?

Nika

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