|
The whole point of pure DBCS fields (defined as PS=8 on the DFHMDF macro)
is that such fields are not encapsulated by Shift in (SI) and Shift out
(SO) characters. This is defined by the 3270 Datastream architecture
When an application issues a BMS RECEIVE command, the terminal returns pure
DBCS fields without SO and SI, since this is how they are stored in the
device buffer.
The 3270 READ command issued by CICS terminal control on behalf of BMS is
such that 3270 extended field attributes are not returned by the device and
hence CICS has no idea whether any field is defined as PS=8 or not. Even if
CICS had this knowledge, it cannot wrap SO and SI characters around these
fields because existing pure DBCS-capable applications would cease to work.
I think that UCTRAN=NO must be specified for terminals which are DBCS
capable. The CICS Terminal Control and BMS functions both provide Global
User Exits which could be used to perform uppercase translation based on
the customers' knowledge of their applications, or upper case translation
could be performed in the application programs themselves.
I appreciate that this is not a satisfactory solution, but I do not know
what else to suggest.
|
