If the CAN-DO-DOMAIN-SUPPORT attribute is TRUE, the CAN-DO function treats "@" as a domain delimiter in a fully qualified user ID, as described in the main entry for the CAN-DO function. If the attribute is FALSE, the CAN-DO function treats "@" as a regular character. For example:
When the attribute is set to TRUE, CAN-DO("abc","abc@") evaluates to TRUE because both strings are interpreted as user abc in the blank domain.
When the attribute is set to FALSE, CAN-DO("abc","abc@") evaluates to FALSE.
The behavior of the CAN-DO function regarding "@" can be changed at any time in a session by setting the CAN-DO-DOMAIN-SUPPORT attribute appropriately. The attribute defaults to TRUE unless the -nocandodomain startup parameter is used, in which case the attribute defaults to FALSE. For more information on the -nocandodomain startup parameter, see the OpenEdge Deployment: Startup Command and Parameter Reference.
When the attribute is set to TRUE, CAN-DO("abc","abc@") evaluates to TRUE because both strings are interpreted as user abc in the blank domain.