PEPPOL-T012-R022
- Message
 The xlink:href MUST be expressed in a UUID syntax (RFC 4122).
- Context
 query:QueryResponse/rim:RegistryObjectList/rim:RegistryObject/rim:RepositoryItemRef- Test
 matches(normalize-space(./@xlink:href), '.*[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}.*')- Usage