ending-number 

The ending-number type is used to specify either a comma-separated list of positive integers without leading zeros, or a string of zero or more spaces. It is used for the number attribute of the ending element. The zero or more spaces version is used when software knows that an ending is present, but cannot determine the type of the ending.

Simple Type Information

Used By

Attribute ending/@number

Source 

<xs:simpleType name="ending-number">
  <xs:annotation>
    <xs:documentation>The ending-number type is used to specify either a comma-separated list of positive integers without leading zeros, or a string of zero or more spaces. It is used for the number attribute of the ending element. The zero or more spaces version is used when software knows that an ending is present, but cannot determine the type of the ending.</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:token">
    <xs:pattern value="([ ]*)|([1-9][0-9]*(, ?[1-9][0-9]*)*)"/>
  </xs:restriction>
</xs:simpleType>