[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Arbitrary grouping


Re:  Arbitrary grouping
Using a Schematron approach might be appropriate
in this case. Depending upon how arbitrary the 
grouping is, it may be a more practical means 
as opposed to permuting all the possible groupings. 

Basically, XSLT templates are used to apply integrity
constraints written as XPath expressions. The loosely coupled
tests which result can flexibly apply across multiple 
structures in ways which are not practical to implement
using a syntax such as W3 Schema. It isn't an either-or
scenario: schemas can be combined with schematron too. 

A better explanation is at 
http://www.topologi.com/public/Schtrn_XSD/Paper.html
See also
http://www.topologi.com/products/validator/index.html

- Mitch 

Hunsberger, Peter wrote:
> I'm new to XML schema and am confused on how I would create a schema that
> introduces a set of arbitrary grouping for a set of elements.  For example:
> 
> 	<x>
> 		<a/>
> 		<b/>
> 		<c/>
> 		<d/>
> 		<e/>
> 		<f/>
> 	</x>
> 
> or
> 
> 	<x>
> 		<group>
> 			<a/>
> 			<b/>
> 		</group>
> 		<c/>
> 		<group>
> 			<d/>
> 			<e/>
> 			<f/>
> 		</group>
> 	</x>
> 
> or perhaps
> 
> 	<x>
> 		<a/>
> 		<group>
> 			<b/>
> 			<c/>
> 			<d/>
> 		</group>
> 		<e/>
> 		<f/>
> 	</x>
> 
> would all be considered valid.  Additional constraints are that any number
> of groups can occur, but the elements a through f can each only occur a
> maximum of once inside the x element whether they are children of a group or
> not.  
> 
> Peter Hunsberger
>  
> 
> -----------------------------------------------------------------
> The xml-dev list is sponsored by XML.org <http://www.xml.org>, an
> initiative of OASIS <http://www.oasis-open.org>
> 
> The list archives are at http://lists.xml.org/archives/xml-dev/
> 
> To subscribe or unsubscribe from this list use the subscription
> manager: <http://lists.xml.org/ob/adm.pl>
> 
> 



PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.