On Mon, 31 Oct 2011 17:32:38 -0400, Farley, Peter x23353 wrote:
>
>"TYPRUN=SCAN is irreparably broken"? Really? Examples, please. The only
>things I have found that TYPRUN=SCAN cannot determine are the existence of
>input datasets...
>
Well, enticed by the statement in the JCL Ref:
SCAN
Requests that the system scan this job's JCL for syntax errors, ...
I assumed I could use TYPRUN=SCAN to check a job's JCL for
syntax errors. But I have found, on JES2:
//JOBSCAN JOB 505303JOB,'Paul Gilmartin',TYPRUN=SCAN,
// MSGLEVEL=(1,1),REGION=0M
//*
//USERC OUTPUT JESDS=ALL,DEFAULT=YES,
// CLASS=R,PAGEDEF=V0648Z,CHARS=GT12
//*
//STEP EXEC PGM=IEFBR14,COND=(0,LE)
//*
//LONGDSN1 DD DISP=SHR,
// DSN=MORETHAN44CHARACTERSINTHIDDATASETNAMESHOULDCAUSEANERROR
//*
//LONGDSN2 DD DISP=SHR,
// DSN=QUALIFIERS.LONGER.THAN8.CHARACTERS
//*
//REFER DD DISP=SHR,DSN=*.NONE.SUCH
//
... is scanned with no errors reported. I concluded that SCAN is worthless
unless
you deliberately commit the errors it's designed to report. Yah, I know, the
behavior is documented. That doesn't alter the fact that it's worthless.
I believe the best scan is to prefix an IEFBR14 step and bypass the rest
of the job with IF...ENDIF.
>Then again, I haven't worked on a JES3 system for more than three decades, so
>I am quite ignorant of current JES3 capabilities and foibles.
>
Me, too. My exposure to JES3 is limited to testing JCL already validated
on JES2. But Ed has called my attention to some valuable facilities that
I was unfamiliar with.
-- gil
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