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

[Daniel Veillard <veillard redhat com>]

On Mon, May 23, 2011 at 03:50:37PM -0400, Paul B. Cameron wrote:

> Just to be sure I'm clear, this case fails:
>
> 1.) xmlReadFile (strPrimarySchemaFile, NULL, XML_PARSE_NONET)
>
> 2.) Add targetNamespace to xs:schema node for primary schema, add
> <xs:import> nodes for secondary schemas
>
> 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.

> And this case succeeds:
>
> 1.) Call xmlReadFile like before
>
> 2.) Add targetNamespace and xs:import's exactly like above
>
> 3.) Call xmlDocDumpMemory to dump to a xmlChar buffer, xmlDocFree to free
> the original doc, and xmlReadDoc load the dumped buffer back into a DOM

  here after serialization and reparsing the namespaces of the elements
and attributes in the tree are fine, and then everything works as
expected.

> 4.) Call xmlSchemaNewDocParserCtxt and xmlSchemaParse as above (and
> ultimately xmlSchemaValidateDoc), which now succeed 

 Triple-check the namespaces pointers and of the new elements/attributes
you added to the tree, not by serializing them but by looing at the
actual ns and nsDef pointers.

Daniel

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