Re: [Exist-open] Schematron XQuery binding for eXist

[Dan M. <dan...@gm...>]

Hi Casey,

This sounds like a great idea.  Schematron can be "implemented" in many
ways.  One of the easy ways is to transform or "compile" the schematron
file into an XSLT program.  See http://xml.ascc.net/schematron/1.5/  This
is the way we did it in eXist before the JING implementation came out.
JING is been much easier to use since it works exactly like a validation.
You just need to change ".xsd" to ".sch":

http://demo.exist-db.org/exist/functions/validation/jing

One suggestion on a simple implementation, it should be possible to also
transform or "compile" the schematron rule file directly into an XQuery
typeswitch module of functions which would use indexes.  This could be done
by just translating the reference implementation from XSLT into XQuery
typeswitch.

- Dan

On Wed, Jan 11, 2012 at 10:11 AM, Casey Jordan <cas...@jo...>wrote:

> Hi all,
>
> I have been considering the benefits of implementing a binding for
> schematron in XQuery so that you could run schematron reports on large
> amounts of data and take advantage of the database indexes.
>
> For instance,
>
> <pattern>
> <rule context="phrase">
> <report test="contains(.,'and/or')">Poor terminology used "and/or"</report>
> </rule>
> </pattern>
>
> Could be converted into a XQuery for reporting:
>
> for $x in //phrase[contains(.,'and/or')]
> return
> <div context="{document-uri(root($x))}">Poor terminology used:
> "and/or"</div>
>
> I was hoping there were individuals that would want to discuss the
> pro/cons of doings this. I had a email exchange with Rick Jelliffe earlier
> today, and he seemed intreaged, but there are obvious challenges to
> overcome for this to make sense.
>
> Anyone have opinions on this?
>
> Thanks,
>
> Casey
>
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> Casey Jordan
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Dan McCreary
Semantic Solutions Architect
office: (952) 931-9198
cell: (612) 986-1552