Yes if we could make a list of these basic "expansion" rules, then someone could write an application that takes an input graph and "expands" everything in it :)
Markus
On Fri, Dec 4, 2009 at 10:14 AM, Barnhill, William [USA] <> wrote:
Thanks Drummond. I'll post the email for my action item tonight, I think that should help. I'll also make sure +a+b is one of the expansion examples in the email.
Kind regards,
Bill Barnhill
Booz Allen Hamilton - Rome, NY
315-330-7386 | |
________________________________________
From: [] On Behalf Of Drummond Reed []
Sent: Friday, December 04, 2009 12:50 AM
To: OASIS - XDI TC
Subject: [xdi] Bill: question about cross-reference expansion
Bill, I was thinking about how this would work to "fully expand" all XDI addresses into "$ statements", i.e., into XDI statements consisting of all $words (plus the four GCS symbols and literals).
It's a cool idea, and for a one-segment statement like +a, it's easy.
+a
(+/a)
+/$has/a
It is also easy for (+a).
(+a)
$$/$has//+a
$$/$has//(+/a)
$$/$has//+/$has/a
But I got stuck trying to expand the statement +a+b.
+a+b
(+a/+b)
+a/$has/+b
(+/a)/$has/(+/b)
(+/$has/a)/$has/(+/$has/b)
At this point I don't know how to get rid of the parentheses and still make it a valid XDI statement.
Ideas?
=Drummond
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