XML Tutorial/XML Schema/ENTITIES

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The ENTITIES data type is derived from the ENTITY type.

   <source lang="xml">

The value space is the set of finite-, nonzero-length sequences of entities. The lexical space is the white-space-separated list of entities. The value of ENTITIES must match the set of unparsed entity names declared in notation elements in the schema.

<xsd:simpleType name="imageTypes">

 <xsd:restriction base="xsd:ENTITIES">
  <xsd:enumeration value="jpg"/>
  <xsd:enumeration value="gif"/>
  <xsd:enumeration value="png"/>
 </xsd:restriction>

</xsd:simpleType>

</source>