• To: Elliotte Harold <elharo@m...>
• Subject: Re: RELAX NG pluggable type libraries
• From: Jeni Tennison <jeni@j...>
• Date: Tue, 26 Oct 2004 10:13:32 +0100
• Cc: XML Developers List <xml-dev@l...>
• Envelope-to: xml-dev@l...
• In-reply-to: <417D8B45.8000009@m...>
• Organization: Jeni Tennison Consulting Ltd
• References: <417D8B45.8000009@m...>
• Reply-to: Jeni Tennison <jeni@j...>

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/

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