[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: RE: [xri] Increased complexity in resolver.
Hi all,
Having just gotten back myself I also am trying
to catch up.
Steve, can you explain what you mean by "even
though
@ootao*west and @ootao+west are both synonyms."?
I thought the
resolution sequence of subsegments to be the following after
normalization:
@ootao*west => @, *ootao, *west
@ootao+west => @,
*ootao, *(+west)
@ootao*(+west) => @, *ootao, *(+west)
@ootao(+west)
=> @, *ootao, *(+west)
Is this incorrect?
From what you said I
got the idea that it's actually
@ootao*west => @, *ootao,
*west
@ootao+west => @, *ootao, *west
@ootao*(+west) => @, *ootao,
*(+west)
@ootao(+west) => @, *ootao, *(+west)
Which doesn't seem to
make sense to me, so I'm betting I
misunderstand.
Thanks,
Bill
-----Original Message-----
From:
Schleiff, Marty [mailto:marty.schleiff@boeing.com]
Sent:
Fri 4/27/2007 11:31 PM
To: steven.churchill@xdi.org; gabe.wachob@amsoft.net;
xri@lists.oasis-open.org
Subject: Re: [xri] Increased complexity in
resolver.
Hi All,
I'm just trying to catch up on this thread -
I've been unavailable all week until now.
I think Steve is right. You
can't have a top level local ref following a global ref, because it would end up
being part of the global ref.
Even using parens, the closest you could
come would be to have a local xref containing a global ref, with a local ref
following the closing paren.
I don't envy Drummond for his task of
providing guidelines describing when a minter should use local vs. global
delimiters. I'll be amazed if he can do it (note that Drummond has amazed me
more than once).
--------------------------
Sent from my BlackBerry
Wireless Handheld
-----Original Message-----
From: Steven
Churchill <steven.churchill@xdi.org>
To: 'Gabe Wachob'
<gabe.wachob@amsoft.net>; xri@lists.oasis-open.org
<xri@lists.oasis-open.org>
Sent: Fri Apr 27 18:17:48 2007
Subject:
RE: [xri] Increased complexity in resolver.
Gabe,
Here's how
the proposal would work I think: an authority that has a global
xref as a
synonym may have local delegation beneath it (as in node C in my
diagram) but
one cannot resolve "through" the global xref. That's why I say
that
@ootao*west*steve is not a synonym for @ootao+west*steve even
though
@ootao*west and @ootao+west are both synonyms.
Thinking about
it more, perhaps I was incorrect in my previous email: maybe
the resolver
doesn't need to enforce the restriction after all, because the
parser's
syntax tree cannot have a top-level local subsegment following a
top-level
global xref.
Drummond, is this last statement true, or is there any way
-- using parens
or what have you -- to do this?
~
Steve
-----Original Message-----
From: Gabe Wachob [mailto:gabe.wachob@amsoft.net]
Sent:
Friday, April 27, 2007 5:48 PM
To: 'Steven Churchill';
xri@lists.oasis-open.org
Subject: RE: [xri] Increased complexity in
resolver.
Steve-
Huh? Maybe because its Friday at almost 6pm, but
I'm totally lost.
Why does the next sub-segment have to be a global
xref?
-Gabe
>
-----Original Message-----
> From: Steven Churchill [mailto:steven.churchill@xdi.org]
>
Sent: Friday, April 27, 2007 5:22 PM
> To:
xri@lists.oasis-open.org
> Subject: [xri] Increased complexity in
resolver.
>
>
> (Please refer to
increased-complexity-in-authority-graph.doc. This is the
> same one I sent
earlier.)
>
> So the resolver is walking across the top-level
subsegments. It encounters
> a
> global xref, so it duly invokes the
authority resolution service (of the
> previous subsegment). It gets back
an XRD. Now the resolver needs to
> evaluate the type of the next
subsegment -- if it's another global xref
> then
> it can continue
walking. Else it has to error out.
>
> I would sure hate to see that
type of logic in the resolution spec.
>
> ~
Steve
>
>
>
> -----Original Message-----
> From:
Steven Churchill [mailto:steven.churchill@xdi.org]
>
Sent: Wednesday, April 25, 2007 3:33 PM
> To:
'xri@lists.oasis-open.org'
> Subject: FW: [xri] Flat structure for local
delegation within global xrefs
>
>
> I think I've managed to
confused everyone (again) by sending the wrong
> document.
>
>
The attachment increased-complexity-in-authority-graph.doc summarizes my
>
discussion with Drummond yesterday. For one thing, I fear that we've
>
redefined the meaning of the term "XRI synonym". In the diagram you will
>
note that when adding the localID "+west", @ootao*west is (still)
a
> synonym
> for @ootao+west (they resolve to the same XRD), but
@ootao*west*steve
> would
> no longer be a synonym for
@ootao+west*steve.
>
> The other attachment
(increased-complexity-in-authority-graph-
> flatness.doc)
> talks
about the flat structure for local delegation within global
xrefs.
>
> ~ Steve
>
>
>
>
________________________________________
> From: Steven Churchill [mailto:steven.churchill@xdi.org]
>
Sent: Wednesday, April 25, 2007 3:22 PM
> To:
xri@lists.oasis-open.org
> Subject: [xri] Flat structure for local
delegation within global xrefs
>
> (Blech.)
>
> Please
see attached.
>
> ~
Steve
>
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]