But on the website of w3c they say:
XML Schema was approved as a W3C Recommendation on 2 May 2001 and a
second edition incorporating many errata was published on 28 October
2004
What I ask is what happens if a document refers to an older schema
(usually backwards compatibility is reserved) and also if there is a
prefix instead of a full uri (like xsd:) what does raptor returns? I
am just getting confused with this plain strcmp for types.
lefteris
On Thu, Apr 17, 2008 at 8:14 PM, Sjoerd Mullender <[EMAIL PROTECTED]> wrote:
>
> On 2008-04-17 18:25, Lefteris wrote:
>
> > On Thu, Apr 17, 2008 at 5:24 PM, Marco Antonelli
> > <[EMAIL PROTECTED]> wrote:
> >
> > > Update of /cvsroot/monetdb/MonetDB5/src/modules/mal
> > > In directory
> sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv26814/src/modules/mal
> > >
> > > Modified Files:
> > > rdf.mx
> > > Log Message:
> > > Added a T bat that stores the types of the RDF objects (IRI, integer,
> double, plain literal...). It still has to be sorted together with the S, P,
> O bats in all their possible combinations
> > >
> > > U rdf.mx
> > > Index: rdf.mx
> > > ===================================================================
> > > RCS file: /cvsroot/monetdb/MonetDB5/src/modules/mal/rdf.mx,v
> > > retrieving revision 1.2
> > > retrieving revision 1.3
> > > diff -u -d -r1.2 -r1.3
> > > --- rdf.mx 1 Apr 2008 14:48:08 -0000 1.2
> > > +++ rdf.mx 17 Apr 2008 15:24:15 -0000 1.3
> > >
> >
> >
> > > +static rdf_type RDFparseXsdDataType(char *uri)
> > > +{
> > > + rdf_type ret;
> > > + if (uri == NULL)
> > > + ret = PLAIN;
> > > + else if ( strcmp(uri,
> "http://www.w3.org/2001/XMLSchema#int";) ||
> > > + strcmp(uri,
> "http://www.w3.org/2001/XMLSchema#integer";))
> > > + ret = INTEGER;
> > > + else if (strcmp(uri,
> "http://www.w3.org/2001/XMLSchema#decimal";))
> > > + ret = DECIMAL;
> > > + else if (strcmp(uri,
> "http://www.w3.org/2001/XMLSchema#double";))
> > > + ret = DOUBLE;
> > > + else if (strcmp(uri,
> "http://www.w3.org/2001/XMLSchema#boolean";))
> > > + ret = BOOLEAN;
> > > + else if (strcmp(uri, "http://www.w3.org/2001/XMLSchema#float";))
> > > + ret = FLOAT;
> > > + else if (strcmp(uri,
> "http://www.w3.org/2001/XMLSchema#string";))
> > > + ret = STRING;
> > > + else if (strcmp(uri,
> "http://www.w3.org/2001/XMLSchema#dateTime";))
> > > + ret = DATETIME;
> > > + else
> > > + ret = UNKNOWN;
> > > +
> > > + raptor_free_memory(uri);
> > > + return ret;
> > > +}
> > >
> >
> > I am not sure if this is the correct way to identify the type, what
> > happens if 2001 changes to 1998 or 2003? or if they use prefix instead
> > of the uri? Does raptor gives you always the full uri back? it seems
> > way to much hard wired.
> >
>
>
> W3C URI's are stable. These URI's (presumably) refer to a published W3C
> recommendation (or are published in said recommendation), so then they will
> remain in perpetuity.
>
> If and when a new recommendation gets published, you will need to (also)
> support the new URI's, but the old ones remain and continue to refer to the
> recommendation that is currently being implemented.
>
> Disclaimer: I know more about W3C process than about XML Schema, so I don't
> know about the status of the recommendation or where these URI's actually
> come from.
>
> --
> Sjoerd Mullender
>
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