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   Re: [xml-dev] Extending Types in xml schema

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Not entirely clear what your required functionality is.

You could get flexible functionality, without multiple types being
involved, as follows:

Schema 1:
        <xs:element name="slug" abstract="true"/>
	<xs:element name="br" substitutionGroup="slug"/>
	<xs:element name="p" type="textBaseType" substitutionGroup="slug"/>
	<xs:element name="span" type="spanType" substitutionGroup="slug"/>
	<xs:element name="ul" type="ulType" substitutionGroup="slug"/>
	<xs:element name="table" type="tableType" substitutionGroup="slug"/>
	<xs:complexType name="textBaseType" mixed="true">
	  <xs:element ref="slug" minOccurs="0" maxOccurs="unbounded"/>

Schema 2:

        <xs:include schemaLocation="schema 1"/>
	<xs:element name="li" type="tableType" substitutionGroup="slug"/>

  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                      Half-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
		     URL: http://www.ltg.ed.ac.uk/~ht/
 [mail really from me _always_ has this .sig -- mail without it is forged spam]


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