exactly matches … with case is the same as exactly matches, but respects the case of the regular expression and the value being matched.
For example, given the following case fragment,
ReqDrDetail 8912373a ReqDrAddress 123 Canberra St Sydney
ReqDrDetail exactly matches “[0-9]{7}[a-z]{1}” with case returns true but:
ReqDrDetail exactly matches “[0-9]{7}[A-Z]{1}” with case returns false (note the [A-Z] in upper case).