On Wed, 11 Jul 2018 14:09:16 -0500, Tom Marchant wrote:
>>
>>>I don't like JCL, but I don't see any way forward other than incremental
>>>improvements.
>>>
>>Business case for those? And trimming the whiskers from JCL would
>>create compatibility problems for users who have come to depend on
>>them, even if only as circumventions.
>
>An example of an incremental improvement is IF/THEN/ELSE/ENDIF.
>
If only the developers had been conscientious:
//NAME JOB ...
//* "IF" *should* not occur before the first EXEC. Accepted with no
warning.
//MAYBE IF FALSE THEN /* Unsupported syntax, accepted with no
warning! */
//STEP1 EXEC PGM=IEFBR14 /* This step is executed, but ... */
//STEP2 EXEC PGM=IEFBR14 /* ... this step is skipped. WTF!? */
//MAYBE ENDIF /* Label *should* be unique. No warning. */
... the face of JCL bcomes increasingly unkempt.
-- gil
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