[gnome-db] Re: gda-report-document

[idstewart softhome net]

Gonzalo Paniagua Javier writes: 

> * [ Santi Camps <santicamps wanadoo es>
> * Wed, 30 Oct 2002 18:29:08 +0100 ]
> > I'm not familiarized with XML Schema, I think that they are an
> > evolution of DTD, but that's all I know.  If this is true, it could be
> > better use XML Schema.
>
> http://www.w3.org/TR/xmlschema-1/ and -2 
>
> Yes, they are an evolution of DTDs, extending them to allow, not only
> defining entities, but their validation criteria and also data types.

We use XSD at work.  In addition to supporting fine grained validation 
criteria, it also supports extension- and restriction based subclassing. 

One of the nicest aspects of this is, because XSD is itself rendered in XML, 
you can use XSD to extend XSD... 

> As i said in my previous mail, if libxml2 supports schemas, it would
> allow as to save some coding to validate data. 
>
> But, well, if not, we can just use a DTD and validate the data by
> ourselves :-)

Why not use XSD and provide your own validation?  At the very least, parsing 
would be alot less painful. 


Ian