matches … with case is the same as 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

ReqDrAddress matches “[a-z]*” with case returns false but:

ReqDrAddress matches “[A-Z]*” with case returns true (note the [A-Z] in upper case).