Re: [Fwd: Re: [xml] load() and includes]

[Daniel Veillard <veillard redhat com>]

On Sun, Jul 10, 2005 at 03:32:03AM -0400, Trevor Lowing wrote:
> > since the XML Schemas implementation does it, and the code is there,
> > just read it !
>
> > Daniel
> Sorry to be so thick-skulled but, does the Schemas implementation load 
> all the includes into one big DOM Document? If so, is there any way to 
> access the DOM document and perform DOM operations? Or, am I stuck 
> trying to do weird stuff like you mentioned in the thread titled 
> "Assembling xml documents from multiple wsdl files"? Could you point me 
> to an example showing use of the Schema API close to what I need? I'm 

I don't know what you need to do. You want to implement xsd:include semantic.
That code is done internally in the schemas module. There is no possible
manual intervention on this as the behaviour is defined by the Schemas
spec.

> sifting through the xmlschemas.c code but I am having a tough time 
> tracing things.

yes it's big complex, and that's one of the reasons why opening up the
internal processing is a red herring.

> Load Schema(s) into a DOM document tree

  that you can do with the normal APIs except it's not strictly speaking DOM
it is libxml2 tree APIs

> (including includes)
 
  you will have to scan the tree to spot the include and load them yourself.
This requires way less work than trying to open and maintain over libxml2
software lifetime the APIs to tweaks the schemas internals.

> Validate Schema as a valid schema

  Once you have a tree use the existing APIs.

> Manipulate DOM document

  libxml2 tree API

> save DOM document to new file

  libxml2 tree API

Daniel

-- 
Daniel Veillard      | Red Hat Desktop team http://redhat.com/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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