xs:pattern

http://www.w3.org/TR/xmlschema11-2/#element-pattern

Element Information

Model

xs:annotation{0,1}
Children: xs:annotation

Attributes

QName Type Fixed Default Use Inheritable Annotation
id xs:ID optional
value xs:string required
Wildcard: ANY attribute from ANY namespace OTHER than 'http://www.w3.org/2001/XMLSchema'

Source 

<xs:element name="pattern" id="pattern" substitutionGroup="xs:facet">
  <xs:annotation>
    <xs:documentation source="http://www.w3.org/TR/xmlschema11-2/#element-pattern"/>
  </xs:annotation>
  <xs:complexType>
    <xs:complexContent>
      <xs:restriction base="xs:noFixedFacet">
        <xs:sequence>
          <xs:element ref="xs:annotation" minOccurs="0"/>
        </xs:sequence>
        <xs:attribute name="value" type="xs:string" use="required"/>
        <xs:anyAttribute namespace="##other" processContents="lax"/>
      </xs:restriction>
    </xs:complexContent>
  </xs:complexType>
</xs:element>

Sample