RE: [xml-dev] Does a XSD schema define the minimum or maximum structure of an XML doc?

From
Ben Stover <>
To
xml-dev <>, Michael Kay <>
Date
2008-04-03T06:32:16Z
ID
<>
Thread
RE: [xml-dev] Does a XSD schema define the minimum or maximum structure of an XML doc?
That would mean:

If the XSD schema designer does NOT insert xs:any or xs:anyAttribute
tags then (=default) additional 

attributes are NOT allowed
elements are NOT allowed

when the XML should be valid?

Is this your statement?

Ben

On Wed, 2 Apr 2008 17:25:24 +0800, Michael Kay wrote:

>> 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?
>> 

>Only if the schema allows it, by means of wildcards: xs:any and
>xs:anyAttribute. It's up to the schema designer whether to permit such
>extensions or not.

>Michael Kay
>http://www.saxonica.com/