Wow, boys .....I been at it 40+ yrs and after awhile it all runs together
...



On Fri, Jan 11, 2019 at 4:57 PM Seymour J Metz <sme...@gmu.edu> wrote:

> > I'd much prefer that Rexx provide instream data, with  symbol
> substitution,
>
> DATA ... END and DATA PROMPT ... END are very useful, much more useful
> than here documents, IMHO.
>
> >I eschew STACK with any command that provides STEM as an alternative.
>
> STEM is nice for commands that support it, but most commands do not.
>
> > I'm phobic that a rogue subroutine will corrupt my stack, or even DESBUF.
>
> That's harder than you might think; DESBUF only trashes stacks that REXX
> created.
>
> > STACK is a crude circumvention for overly restrictive variable scoping.
>
> No. You might certainly use it that way, but I find that a good
> screwdriver makes a bad hammer, and vice versa.
>
> --
> Shmuel (Seymour J.) Metz
> http://mason.gmu.edu/~smetz3
>
> ________________________________________
> From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf
> of Paul Gilmartin <0000000433f07816-dmarc-requ...@listserv.ua.edu>
> Sent: Friday, January 11, 2019 4:39 PM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: Unreadable code (Was: Concurrent Server Task Dispatch issue
> multitasking issue)
>
> On Fri, 11 Jan 2019 21:15:20 +0000, Seymour J Metz  wrote:
>
> >> It's there, and other implementations of Rexx, such as Regina, struggle
> to emulate it.
> >
> >All implementations of REXX provide a stack, but none of them even try to
> provide the stack mechanisms that TSO has and CLIST DATA/DATA PROMPT
> support.
> >
> I'd much prefer that Rexx provide instream data, with  symbol substitution,
> as POSIX shell and even JCL do.
>
> I eschew STACK with any command that provides STEM as an alternative.
> I'm phobic that a rogue subroutine will corrupt my stack, or even DESBUF.
>
> I applaud ADDRESS SYSCALL for relying on STEM, never (AFAIK?) STACK.
>
> STACK is a crude circumvention for overly restrictive variable scoping.
> CMS Piplines has YA chaotic circumvention.
>
> -- gil
>
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-- 
Scott Ford
IDMWORKS
z/OS Development

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