- From: Eric van der Vlist <vdv@dyomedea.com>
- Date: Mon, 29 Jan 2001 12:06:25 +0100
- To: Martin Gudgin <marting@develop.com>
- CC: XML Schema Dev <xmlschema-dev@w3.org>
Martin Gudgin wrote: > > Just to be sure... You are saying I have to put > > xmlns:xml='http://www.w3.org/XML/1998/namespace' > > in my schema document? Yes. > That seems very weird. The xml namespace prefix is always in scope, why > should I have to declare it. My take on this is that W3C XML Schema is trying to kill 2 birds with a single declaration. When you write xmlns:foo="http://bar" in a schema, you do 2 different things: 1) you declare a namespace prefix per the namespaces in XML 1.0 rec that, most of the time, you will not use as a namespace prefix. 2) you declare to the schema processor that you will be using the prefix 'foo' inside W3C XML Schema attributes to identify the namespace "http://bar". The xml namespace prefix is always in your scope per the namespace rec to perform 1), but not ins your scope to perform 2). > MSXML sees this as an error, complaing that the prefix xml is invalid. > Xerces and Oracle accept it. Either way it doesn't solve my problem. A modified schema with the > above declaration still gives the same error[3] I am confused with your schema. It has no global element definition... Is it intended to be included in another one ? Otherwise I don't see which instance document can be validated ? Could you provide one ? Eric > Gudge > > [3] http://marting.develop.com/xsd/xmlspace.mod.xsd > > ----- Original Message ----- > From: "Eric van der Vlist" <vdv@dyomedea.com> > To: "Martin Gudgin" <marting@develop.com> > Cc: "XML Schema Dev" <xmlschema-dev@w3.org> > Sent: Monday, January 29, 2001 9:27 AM > Subject: Re: Unknown prefix xml? > > > Martin Gudgin wrote: > > > > > > I'm getting an 'attribute type check failed for {None}:ref: xml:space has undeclared prefix: > xml' > > > error using XSV1.1a with the schema at[1]. Full XSV output is at[2]. > > > > > > I don't *think* I should have to declare the xml prefix inside my schema, should I? > > > > Yes you have ;=) ... > > > > You need to define its namespace as > > "http://www.w3.org/XML/1998/namespace". > > > > You don't **need** to specify a schame location for this namespace since > > a schema validator will find a schema for this namespace by > > dereferencing the URI. > > > > If you don't specify a schema location, it will mean though that your > > schema processor will perform an access to this location each time it > > validates the schema (unless it's using a cache). > > > > Erix > > > > > Gudge > > > > > > [1] http://marting.develop.com/xsd/xmlspace.xsd > > > [2] http://marting.develop.com/xsd/xmlspace.err.xml > > > > -- > > ------------------------------------------------------------------------ > > Eric van der Vlist Dyomedea http://dyomedea.com > > http://xmlfr.org http://4xt.org http://ducotede.com > > ------------------------------------------------------------------------ -- ------------------------------------------------------------------------ Eric van der Vlist Dyomedea http://dyomedea.com http://xmlfr.org http://4xt.org http://ducotede.com ------------------------------------------------------------------------
Received on Monday, 29 January 2001 06:06:29 UTC