ending-number data type
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.
Base type: token
Regex pattern: ([ ]*)|([1-9][0-9]*(, ?[1-9][0-9]*)*)
Where is this type used?
<ending> — "number" attribute