Fw: ambiguous content model - yea or nay?

MessageI suppose it isn't illegal to create a schema that has an ambiguous content model.  

My gun, my bullet, my foot, right?


  ----- Original Message ----- 
  From: Dare Obasanjo 
  To: Paul Kiel ; xmlschema-dev@w3.org 
  Sent: Tuesday, February 11, 2003 3:54 PM
  Subject: RE: ambiguous content model - yea or nay?


  I can't think of any W3C XML Schema constraints this complex type violates. Why do you think it is invalid? 
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----------------------------------------------------------------------------
    From: Paul Kiel [mailto:paul@hr-xml.org] 
    Sent: Tuesday, February 11, 2003 11:37 AM
    To: xmlschema-dev@w3.org



    Question all,

    I am getting an "ambiguous content model" error when validating an instance conforming to this schema:

    <xsd:complexType>
         <xsd:sequence maxOccurs="unbounded">
              <xsd:element name="AvailabilityStartDate" type="AnyDateTimeNkType" minOccurs="0"/>
              <xsd:element name="AvailabilityEndDate" type="AnyDateTimeNkType" minOccurs="0"/>
         </xsd:sequence>
    </xsd:complexType>

    I only get the error from 1 of 5 parsers/tools that I validate against.  And only when validating the instance (the schema validates just fine with that same tool).

    The more I looked at it, the more it seemed "technically" true but I wasn't sure.

    (For the record, this is a bug fix - I plan on eliminating the maxOccurs attribute on the sequence.)

    Curiously,

    Paul Kiel
    HR-XML Consortium