Re: [xml] xmlSchemaSAXPlug and xsi:schemaLocation

[Daniel Veillard <veillard redhat com>]

On Tue, Oct 11, 2005 at 10:02:38PM +0100, Graham Bennett wrote:
> On Mon, Oct 10, 2005 at 10:30:06AM +0200, Kasimier Buchcik wrote:
> > Create the schema validation context with a NULL for the @schema
> > argument if you want to switch on xsi-driven schema acquisition.
> > Internally a new schema will be created during the validation and
> > all the schemata, specified via xsi, will be constructed.
> > However, this is a bit limited, since Libxml2's schema processors
> > wants references to schema components to be resolved after each
> > schema construction episode; thus it will work only on a subset
> > of all the possible scenarios. E.g. if you have a schema at the
> > document element, which references a component which would be
> > acquired deeper in the tree (via a second xsi acquisition) then
> > you would get a reference resolution error with Libxml2, while the
> > spec allows such "late binding".
>
> Thanks Kasimier, I'll try this.  Just to check, is the 'late binding'
> problem an issue with libxml2 schema in general or just when using the
> SAX plug interface?

  I would tentatively say this is general to libxml2 as even tree validation
uses the same internal callback interfaces, but Kasimier may correct me if I'm
wrong :-)

Daniel

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veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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