> He also noted this: When? For decades there was no symbol substitution for instream data, but that hasn't been the case for a long time. Still, the rules are a bit clumsy.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Phil Smith III [li...@akphs.com] Sent: Thursday, August 24, 2023 6:45 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Is SMP/E needed for installs? Gil wrote: >I'm ignorant, or at best outdated. I haven't known of use of symbols by SMP/E. >But are there instances where the same &symbol would need to appear in >one instream data set where it should be evaluated and in another where it >must not, regardless of //name DD DATA,SYMBOLS=...? Cite detailed >example, please. I mean things like the RFPREFIX value on a RECEIVE command, which apparently cannot be &whatever but must specify the data set prefix of the RELFILEs. Same for the value for a PATH on a DDDEF. >There are ways. however cumbersome, to escape symbol evaluation in >instream data sets. Well, maybe; I didn't write this stuff but the guy who did was pretty sharp, and couldn't figure out ways around the above. He also noted this: //* ***NOTE*** Some references to variable values are in records //* provided as part of SYSIN DD *, and thus cannot be //* filled in using JCL variables (&HLQ et al.). Thus //* in this job, you must replace all references to //* !hlq!, !unit!, and !volser!, not just the single //* SET statement for each. Maybe there's a clever way around that? It's referring to things like: //SYSIN DD * DEFINE CLUSTER( + NAME(!hlq!.GLOBAL.CSI) + VOLUMES(!volser!) + CYLINDERS(20 10) + FREESPACE(2 2) + KEYS(24 0) + RECORDSIZE(24 143) + SHAREOPTIONS(2 3) + ) + DATA ( + NAME(!hlq!.GLOBAL.CSI.DATA) + CONTROLINTERVALSIZE(8192) + ---------------------------------------------------------------------- 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
