On Tue, 2 Feb 2021 10:05:35 -0800, Charles Mills wrote:
>Of course, technically that is not a Rexx language issue. I am looking at
>Cowlishaw "The Rexx Language" and "EXECIO" does not appear in the index.
>
It's conventional, but peculiar to the IBM world: CMS, z/OS, (OS/2?), ...?
uni-REXX, ...?
https://www.wrkgrp.com/unirexx/index.html
>I could write a Rexx command processor any way that I wanted. I could have it
>take a Rexx variable name and prepend stems onto it and return its results
>that way.
>
Hard to enumerate them, even with API.
> ... Or append tails consisting of Roman numerals.
>
It's nonstandard but broadly conventional to use numeric tails
with a count in stem.0.
-- gil
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