Re: validation block: RELAX-NG, XML-Schema, any other languages required?

[Pier Fumagalli]

On 8 Sep 2005, at 10:19, Gianugo Rabellino wrote:

On 9/7/05, Pier Fumagalli <[EMAIL PROTECTED]> wrote:

I'm almost done implementing XSD (XML Schema) validation using
Xerces' internals! :-P
That was hard, but I got it working outside Cocoon's sandbox, now it
only needs a couple of wrappers for source/entity resolution between
Cocoon and Xerces.

Any other languages that _seriously_ deserve some attention before
marking the block as "stable" ?

I'd love to see Schematron, as the only language which allows easy and
selective validation (not to mention domain-specific validation as
well). I still don't quite see why you didn't go the MSV way apart
from distribution issues (we have schema, rng and schematron
implemented as msv plugins in our validation stuff), but hey, as long
as you're giving free code away, I'm happy ;)

Well, distribution issues _are_ quite important :-D





But hey, if you want to implement it, mock, and write! :-P

    Pier

If you want to use MSV, simply write a couple of "mocks" classes for what you need, and from there you can build a MSVSchemaParser and a MSVSchema you can use directly with the components provided within the "validation" block. That should be straightforward to do. Someone could do exactly the same for javax.xml.validation in JAXP 1.4 and so on and so forth (actually, javax.xml.validation _is_ redistributed with cocoon, I'll do something with it)... I don't think that having a dependancy on something we cannot redistribute for a generic (and IMVHO essential) feature such as validation is a good thing.

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