On Wed, Feb 22, 2017 at 12:32 PM, Paul Gilmartin < 0000000433f07816-dmarc-requ...@listserv.ua.edu> wrote:
> On Wed, 22 Feb 2017 09:26:58 -0800, John Mattson wrote: > > >Mr Poncelet is correct here. While the old fashioned COND statements had > a > >funky syntax, there are some cases where they just work simpler. > >See my example, below, which also presents a reasonable way to make sense > >of the old syntax. > >... > >//STEP1A EXEC PGM=WHATEVER,COND=(04,NE,STEP1) > >//* IFF 4 is NE to the return code from STEP1 THEN Bypass this step > >//* > >//STEP1B EXEC PGM=WHATEVER,COND=(00,NE,STEP1) > >//* IFF 0 is NE to the return code from STEP1 THEN Bypass this step > > > > ... There SHOULD be another test, basic > >programming, test for ALL possible conditions whenever possible. > > > If only the designers (excuse me; perpetrators) of JCL had thought to > provide an ELSEIF statement, they could have much simplified this > (What century were they trained in?): > I can't answer that, but it could be argued that it is not __absolutely__ necessary since the other constructs can emulate it, albeit clumsily //IF1 IF ... ... // ELSE //IF2 IF ... // ELSE //IF3 IF ... //ENDIF3 ENDIF //ENDIF2 ENDIF //ENDIF1 ENDIF > > // IF (STEP1.COND EQ 4 ) THEN > >//* IFF 4 is EQ to the return code from STEP1 THEN perform this step > //* > // ELSEIF (STEP1.COND EQ 00) THEN > //* IFF 0 is EQ to the return code from STEP1 THEN perform this step > //* > // ELSE > //* Handle unexpected RC in this step. > // ENDIF > > I hate JCL! > I'm not a great fan of it myself. Of course, for some things I have abandoned it for doing things using a REXX script (UNIX or TSO, depending) or a UNIX shell, via Co:Z batch launcher. The main reason that I still use JCL is CA-7 restart. I am not aware of _anything_ on the market which can do something similar to this function for a REXX script or a UNIX shell script. They need to be written with restart in mind at the application level. > > RFE, anyone? > > -- gil > > -- "Irrigation of the land with seawater desalinated by fusion power is ancient. It's called 'rain'." -- Michael McClary, in alt.fusion Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
