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Re: Can schemas be in the default namespace?

• From: "G. Ken Holman" <gkholman@CraneSoftwrights.com>
• To: Steinar Bang <sb@dod.no>,xml-dev@l...
• Date: Tue, 05 May 2015 08:43:11 -0400

At 2015-05-05 14:15 +0200, Steinar Bang wrote:

Is it legal to do this?
  <schema xmlns="http://www.w3.org/2001/XMLSchema">
    ...
  </schema>

Yes.

I'm dealing with some schemas that don't use a namspace prefix for the
schema namespace, ie. they are defined like this:
<schema xmlns:xsd="http://www.w3.org/2001/XMLSchema.xsd" xmlns="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">

Ie. they have set xmlns="http://www.w3.org/2001/XMLSchema" (and
xmlns:xsd="http://www.w3.org/2001/XMLSchema.xsd" as well, though the
"xsd:" prefix isn't used anywhere I could see).

Not a problem.

XML Validator Buddy[1] didn't complain about this, but eclipse WTP[2]
(WTP 3.6.3 on Luna SR2) on
<import namespace="http://www.myorg.no/xmlstds" schemaLocation="../common/myorg.xsd"/>
gives the following error message
schema_reference.4: Failed to read schema document '../common/myorg.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. ER-M30-2014-12-01.xsd /MYProject/Myfolder line 13 XML Schema Problem

That sounds like a bug as if they were expecting prefix-based properties.

The XSLT-based XSD to RNG converter[3] says:
error on line 11 at column 37: xml namespace URI cannot be the default namespace

Who are right?  Is it possible to tickle the schemas so that WTP and/or
the XSLT converter will accept them?

Is the problem that both the outer schema and the imported schema uses "xmlns="?

Thanks!


- Steinar

[1] http://www.xml-buddy.com/ValidatorBuddy.htm
[2] http://www.eclipse.org/webtools/phoenix/webtools/
[3] http://debeissat.nicolas.free.fr/XSDtoRNG.php

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  • Can schemas be in the default namespace?
    • From: Steinar Bang <sb@dod.no>