Define an atomic type derived from NMTOKEN (or simply from string) that
enumerates the allowed values; then define a list type whose item type is
that atomic type.

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

> -----Original Message-----
> From: xmlschema-dev-request@w... 
> [mailto:xmlschema-dev-request@w...] On Behalf Of dirk dewolf
> Sent: 07 January 2006 12:40
> To: xmlschema-dev@w...
> Subject: list of pre-defined value
> 
> 
> How can I define a space separated list of values for an 
> attribute using 
> NMTOKENS. The values one may use must be predefined.
> 
> The below code does not seem to work. The attribute value 
> does not allow for 
> the containment of a LIST of the values; yet appears to be 
> restricted to one 
> value only.
> 
> <xs:simpleType>
> <xs:restriction base="xs:NMTOKENS">
> <xs:enumeration value="value1"/>
> <xs:enumeration value="value2"/>
> <xs:enumeration value="value3"/>
> <xs:enumeration value="value4"/>
> <xs:enumeration value="value5"/>
> </xs:restriction>
> </xs:simpleType>
> 
> many thanks
> d.
> 
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From john@s... Sun Jan 08 21:13:43 2006
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