Re: [relax-ng] [Fwd: [xml-dev] Which next step for examplotron?]

[Eric van der Vlist <vdv@dyomedea.com>]

On Mon, 2003-01-20 at 10:07, James Clark wrote:
> I was wondering how do you see the role of examplotron as compared to the 
> role of a tool that can infer a schema from one or example instances, like 
> Microsoft's XSD Inference tool (http://www.gotdotnet.com/team/xmltools/). 

It can be seen as such a tool where the example instance is made
"persistent": instead of using it first time before "throwing it away"
and having to edit a schema to tweak and update it later on, the
instance has enough information to remain the source all over the life
cycle of the vocabulary.

> One could even imagine a schema inference tool supporting annotations in a 
> special namespace in the example instances to allow the user to tweak the 
> schema inference process...

That's exactly what examplotron is already!

For instance, in:

<?xml version="1.0" encoding="UTF-8"?>
<foo xmlns:eg="http://examplotron.org/0/";  
    eg:assert="sum(bar:percent)=100" >
    <percent eg:occurs="+">100</percent>
</foo>

eg:occurs and and eg:assert are annotations to define the number of occurrences and an additional XPath rule.

Eric

> James
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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
(W3C) XML Schema ISBN:0-596-00252-1 http://oreilly.com/catalog/xmlschema
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