> > -----Original Message-----
> > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED]
> > Behalf Of Bruce Black
> > Sent: Friday, August 04, 2006 12:26 PM
> > To: [email protected]
> > Subject: Re: [IBM-MAIN] WHY IS JCL ALLERGIC TO LOWER CASE?
> >
> >
> > >
> > > ISNT IT TRUE THAT IN THE BEGINNING THERE WAS ONLY UPPER CASE ?
> > Just in case you are serious:  my S/360 green card (undated)
> > shows upper
> > and lower EBCDIC values.  But early 3270s only supported
> > upper case, and
> > I vaguely remember that 026 keypunches didn't have lower case
> > either (I
> > think that came with the 029 keypunch).   So us oldtimers rarely saw
> > lower case in the "good old" days.
> >
> > --
> > Bruce A. Black

Ahhh, I remember the good old days.... No shift keys, no lower-case - it
was so simple...

There are some issues with lower case - data set names cannot contain lower
case characters; a parm that inserts data for a data set name will be
rejected with a JCL error.

 It's also not clear what the JCL processor should do with lower-case.  Do
the programs that get invoked expect lower-case?  How many programs (in the
world) would have to upper-case items to properly interpret them?
Parameters like AMP, STORCLAS, MGMTCLAS,  and others added over the years
would have to be  modified to support lower-case.  It's not just "allowing
them in JCL" - some of these parameters are passed to IBM components, and
to vendor products.  Can you imagine how much work it would take to support
lower-case?

Thanks,
Mark Thomen
Catalog/IDCAMS/VSAM Development
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