Re: [xml] XML Schema: Validating an instance document with multiple schemas

[Daniel Veillard <veillard redhat com>]

On Wed, Jun 01, 2011 at 09:41:43AM -0400, Paul B. Cameron wrote:
> The primary schema declaration looks like this on-disk:
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
> elementFormDefault="qualified" attributeFormDefault="unqualified">
>
> It's updated in-memory to this:
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns="http://www.company.com/schemas/servermain";
> elementFormDefault="qualified" attributeFormDefault="unqualified"
> targetNamespace="http://www.company.com/schemas/servermain";>
>
> To do so, I load the schema and:
> 1.) xmlDocGetRootElement
> 2.) xmlSetProp with "targetNamespace"
> 3.) xmlSetProp with "xmlns"

  That is wrong create a namespace with
    xmlNewNs
set it as the in-scope namespace by updating the -> ns field of all the
elements in the subtree.

> Is this the wrong way to go about this? Should I be using the NS-specific
> API's for step 3?

  yes

[...]
> > 3.) call xmlSchemaNewDocParserCtxt to create parser context and
> > xmlSchemaParse to parse the schema (which fails)
>
>   This smells like in doing 2 you missed something with namespaces,
> and that as a result when parsing your in-memory tree teh XSD parser
> fails to find the namespaces (maybe just the prefix or something.

  I'm now sure the problem is related to building the in-memory
tree and having the namespaces correctly set.

Daniel

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