OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]
Re: [xml-dev] Does a XSD schema define the minimum or maximum structure of an XML doc?

Generally an XML schema specifies the allowed contents of an XML instance 
quite precisely and adding additional elements or attributes to an XML 
instance will likely cause it to become invalid.

However, you can specify what are called wildcards using xs:any and 
xs:anyAttribute which allow XML instances to include additional elements and 
attributes not explicitly specified in the schema.  Such additional elements 
do have to occur where the xs:any declarations allow them, so in general, 
even with xs:any declarations, you can't add in elements just any where.


Pete Cordell
For XML C++ data binding visit http://www.codalogic.com/lmx/

----- Original Message ----- 
From: "Ben Stover" <bxstover@yahoo.co.uk>
To: "xml-dev" <xml-dev@lists.xml.org>
Sent: Monday, March 31, 2008 7:26 PM
Subject: [xml-dev] Does a XSD schema define the minimum or maximum structure 
of an XML doc?

> Assume I have an XML doc and the referring XSD schema.
> Can I add now additional elements and additional attributes (for existing
> elements) in the XML doc without getting the XML doc invalid?
> That would mean the XSD represents the minimum required content of an XML 
> doc
> which can be extended by multiple own parts.
> I am not talking about minoccur or maxoccur but the pure declaration of 
> elements
> and attributes.
> Ben
> _______________________________________________________________________
> XML-DEV is a publicly archived, unmoderated list hosted by OASIS
> to support XML implementation and development. To minimize
> spam in the archives, you must subscribe before posting.
> [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/
> Or unsubscribe: xml-dev-unsubscribe@lists.xml.org
> subscribe: xml-dev-subscribe@lists.xml.org
> List archive: http://lists.xml.org/archives/xml-dev/
> List Guidelines: http://www.oasis-open.org/maillists/guidelines.php

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]

News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 1993-2007 XML.org. This site is hosted by OASIS