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Re: Meeting minutes 8 August 2006

From: Seaborne, Andy <andy.seaborne@hp.com>
Date: Tue, 15 Aug 2006 14:57:06 +0100
Message-ID: <44E1D2B2.7060708@hp.com>
To: Eric Prud'hommeaux <eric@w3.org>
CC: dawg mailing list <public-rdf-dawg@w3.org>

The value testing was written up in

http://lists.w3.org/Archives/Public/public-rdf-dawg/2006JulSep/0086.html

which gives a different truth table from the minutes below.

	Andy

Eric Prud'hommeaux wrote:
 > ---------- http://www.w3.org/2006/08/08-dawg-minutes ----------

 >
 >    I think that "'II'^^roman:numeral = 2" has the same behavoir if backed
 >    by either "sop:value-compare(A,B) == -1" or "op:numeric-less-than(A,
 >    B)"
 >
 >    <AndyS> "'II'^^roman:numeral = 2" is error if Roman numerals are
 >    unknown
 >
 >    A = B RDF termRDF termRDFterm-equal(A, B)
 >
 >    A = B RDF term RDF term RDFterm-equal(A, B)
 >
 >    <kendallclark> Does anyone have a proposal for leading us out of this?
 >    It's starting to seem a bit like a morass...
 >
 >    <patH> if I followed it, this seems to work
 >
 >    <AndyS> I believe sop:value-comapre does it - I'm willing to flesh it
 >    out.
 >
 >    <AndyS> It obeys the "every problem needs an extra level of
 >    indirection" maxim
 >
 >    <kendallclark> :)
 >
 >    <patH> whoops, that was a reference to andys mesage of a few days ago.
 >
 >    number = number
 >
 >    date = date
 >
 >    string = string
 >
 >    --------------------
 >
 >    IRI = IRI
 >
 >    bNode = bNode
 >
 >    <fred> literal = literal: true or error
 >
 >    <fred> iri = iri: true or false
 >
 >    <fred> bnode = bnode: true or false
 >
 >    <fred> allother cells always false
 >
 >    2=3
 >
 >    <AndyS> Yes, Fred - that's the table I was thing of.
 >
 >    <AndyS> bNode = literal (not bNode in query) may be valid
 >
 >    <AndyS> Separate sameLiteral operator.
 >
 >    <AndyS> if we want a syntactic comparision
 >
 >    <AndyS> "(x,y)"^^:geo
 >
 >    <AndyS> If you want help with this, do ask - I'm the one keen to have
 >    this extensibility so I feel responsible here.
 >
 >    <kendallclark> ACTION: EricP to redraft section 11 to support
 >    extensible datatypes [recorded in
 >    [18]http://www.w3.org/2006/08/08-dawg-minutes.html#action08]
 >
 >    <AndyS> sop:vaue-compare should return symbols for LE, GT, EQ and NE
 >    (or error)
 >
Received on Tuesday, 15 August 2006 13:57:39 GMT

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