abstract 

If true defines an abstract pattern. Possible values are true and
false.

Attribute Information

Used By

Element sch:pattern

Source 

<xs:attribute name="abstract" default="false">
  <xs:annotation>
    <xs:documentation>If true defines an abstract pattern. Possible values are true and false.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:token">
      <xs:enumeration value="true">
        <xs:annotation>
          <xs:documentation>Defines an abstract pattern.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="false">
        <xs:annotation>
          <xs:documentation>Specifies that the pattern is not abstract.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>

Sample