xsl:validation-type 

Describes different ways of type-annotating an element or attribute.

Simple Type Information

Used By

Attributes xsl:attribute/@validation, xsl:copy-of/@validation, xsl:copy/@validation, xsl:document/@validation, xsl:element/@validation, xsl:literal-result-element-attributes/@xsl:validation, xsl:result-document/@validation, xsl:sequence-constructor-group/@validation
Simple Type xsl:validation-strip-or-preserve

Source 

<xs:simpleType name="validation-type">
  <xs:annotation>
    <xs:documentation>Describes different ways of type-annotating an element or attribute.</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:token">
    <xs:enumeration value="strict"/>
    <xs:enumeration value="lax"/>
    <xs:enumeration value="preserve"/>
    <xs:enumeration value="strip"/>
  </xs:restriction>
</xs:simpleType>