crossout

<xs:attribute name="crossout">
  <xs:simpleType>
    <xs:list>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="none"/>
          <xs:enumeration value="updiagonalstrike"/>
          <xs:enumeration value="downdiagonalstrike"/>
          <xs:enumeration value="verticalstrike"/>
          <xs:enumeration value="horizontalstrike"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:list>
  </xs:simpleType>
</xs:attribute>