Re: [xml-dev] RELAX NG pluggable type libraries

[Jeni Tennison <jeni@jenitennison.com>]

Hi Elliotte,

> Do any RELAX NG implementations support user defined type libraries?
> i.e. something like XSLT extension functions?
>
> For instance, is it possible in any tools (and if so which ones) to
> plug in my own code written in Java/C#/Python/XSLT/whatever that
> would verify that an element contains a prime number?

There's certainly a Java interface for RELAX NG pluggable datatypes,
supported by Jing (and others), see:

  http://www.thaiopensource.com/relaxng/pluggable-datatypes.html

The Datatype Library Language (DTLL) that I've been working on should
eventually provide a declarative method for defining datatypes for
RELAX NG (etc.), but it's at a fairly early stage, and there aren't
any implementations yet. See:

  http://www.jenitennison.com/datatypes/

Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/