RE: Determinization in case of ambiguity or Should XML validators report on schemas that violate the UPA constraint?

Hello,

 

Thanks for your explanation.

The typographical errors are due to my email client, sigh...

 

What about the case where a sequence with minOccurs="1" and
maxOccurs="1" contains particles which all have minOccurs="0" in the
case where none of them appear in the XML instance? (see example:
below). What is the desired behavior? I suspect that the outer sequence
should also have minOccurs="0", in such an event. What do you think?

 

If this is a problem, should this be reported by a schema validator upon
processing of the schema? Should the schema be "automatically
corrected"?

 

Thanks.

 

Shlomo.

	 

	<?xml version="1.0" encoding="UTF-8"?>

	<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="bar" xmlns="foo">

	            <xsd:element name="a">

	                        <xsd:complexType>

	                                    <xsd:sequence>

	                                                <xsd:sequence
minOccurs="0">

	
<xsd:element name="b">

	
<xsd:complexType/>

	
</xsd:element>

	                                                </xsd:sequence>

	                                    </xsd:sequence>

	                        </xsd:complexType>

	            </xsd:element>

	</xsd:schema>  

	 

	Instance:

	 

	<a/>