> 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
