Re: 'Re: "Re: [xml] schema patch"'

[Daniel Veillard <veillard redhat com>]

On Wed, Jun 09, 2004 at 01:15:08PM +0200, Kasimier Buchcik wrote:
> Hi,
> 
> on 6/9/2004 11:05 AM Daniel Veillard wrote:
> 
> [...]
> 
> > Just keep in the corner of your head that one day the code validation code
> > will have to be converted to handle a SAX2 event stream, and it's better
> > to not use the instance tree structure too much in the validation APIs
> > (that will be a major work anyway ...)
> 
> Is the schema itself intended to be parsed using SAX2 in the future as 
> well?

  No. It only make sense to stream on the instance. Computing types
and content models need closure on the schemas involved, trying to
stream at that level would IMHO bring nothing.

> I don't know if this would make sense, but with all this import, 
> redefine and
> include support, I wonder how vast schemas could grow in the future; 
> just thinking
> about the people that have tears in their eyes, because of the 
> restriction of the error-line information to an unsigned short.

  hehe :-) Well apparently docbook Relax-NG schemas grew up to 450KB
but streaming won't help there anyway, we need to parse all of it before
being able to use it.

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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