Re: How to scope the note about D and override(E,D)

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ht writes:

> A third example follows in the next message.

Consider the following set of 4 schema documents.

A.xsd:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 <xs:override schemaLocation="B.xsd">
  <xs:simpleType name="doc">
   <xs:restriction base="xs:date"/>
  </xs:simpleType>
 </xs:override>
</xs:schema>

B.xsd:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 <xs:override schemaLocation="C.xsd">
  <xs:element name="cod" type="xs:date"/>
 </xs:override>
 <xs:override schemaLocation="D.xsd">
  <xs:element name="odd" type="xs:date"/>
 </xs:override>

 <xs:simpleType name="doc">
  <xs:restriction base="xs:string"/>
 </xs:simpleType>
</xs:schema>

C.xsd:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 <xs:override schemaLocation="A.xsd">
 </xs:override>

 <xs:element name="cod" type="doc"/>
</xs:schema>

D.xsd:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 <xs:override schemaLocation="A.xsd">
 </xs:override>

 <xs:element name="odd" type="doc"/>
</xs:schema>

Algorithm O classifies this as OK starting from A, but not if starting
- From B, C or D.

ht
- -- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
      10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
                Fax: (44) 131 651-1426, e-mail: ht@inf.ed.ac.uk
                       URL: http://www.ltg.ed.ac.uk/~ht/
 [mail from me _always_ has a .sig like this -- mail without it is forged spam]
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Received on Monday, 14 March 2011 15:39:54 UTC