No need to read source code as it is pretty well documented in the Rexx Reference manual, start with the section "replaceable routines - host command environment" https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.ikja300/aerep.htm
Rexx provides callable routines for things like getting the value of Rexx variables. Depending upon your exec execution environment and host command processor, you may also need to do a dozen things in intitialization (for example provide your own storage management routine). All of this is fairly easily done/ I no longer have an example but did this circa 25 years ago and not much has changed, if anything, since then. It only gets tricky if you want to run unsupported capabilities (such as APF authorized). On Tue, Nov 7, 2017 at 9:00 AM, John McKown <[email protected]> wrote: > I'm reading up on this. I did not find any Redbook which seemed to address > it. This portion of REXX is for a "Language Processor". From what I am > gathering, this is when you want to use the "ADDRESS ????" ( such as > ADDRESS TSO or ADDRESS SYSCALL ...). I am thinking of doing some "weird (of > course) and wonderful (maybe)" with this. But, at least so far, I haven't > gotten a firm grasp on how it all goes together. On Linux and other FOSS, I > would look at the source and possibly get a better grasp on things. "Just > say NO to OCO!" {grin} > > Anybody got anything they can share? > > -- > I have a theory that it's impossible to prove anything, but I can't prove > it. > > Maranatha! <>< > John McKown > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
