I am looking at going OOREXX or NETREXX to make interfacing
easier. I'm still researching how to proceed in the best way.
I have Regina Rexx on both W11 and Suse LEAP 15.x I've been
struggling with I/O because I'm too used to DSN type file systems
as opposed to char streams.
So I have to re-think an application when trying to implement it
off mainframe. Most of what I do is based on/in record I/O. And
having used COBOL (FJ) on Windows, it makes the data appear as
record oriented from where I sit.
I'm assuming they went to a common forum. I haven't looked it up
for while.
Steve Thompson
On 4/21/2024 1:11 AM, Paul Gilmartin wrote:
On Sat, 20 Apr 2024 23:58:18 -0400, Steve Thompson wrote:
I concur about REXX EXECIO I/O is not exactly intuitive.
REXX, first implemented in CMS used the CMS I/O utilities....
Over in TSO they created EXECIO which does not operate in the
same way as does the CMS EXECIO. And it causes me headaches when
I work on CMS for a year or two and then come back to TSO to have
it NOT be have as it did in CMS. Especially the STEM variable and
trying to write a record.
Note the fundamental difference in file specs:
CMS: FN FT FM
Z/OS: DDNAME
... but I have written portable EXECs -- on z/OS
my FileSpec variable is one word; on CMS three.
And, irritatingly, the syntax of ADDRESS MVS EXECIO
differs depending on whether the EXEC is started from
a UNIX or non-UNIX address space.
The lack of (VAR string is probably impelled by TSO
RECFM=F, which would have a trailing blank entanglement.
And so after working in TSO for a year or so to go back to CMS --
I need to learn and make use of PIPEs which is not supported over
on TSO.... Most shops do not see the need to pay for TSO Pipes.
Sigh.
Is TSO Pipes even marketed except, an obsolete version
bundled with BatchPipes?
And so, with Windows I/O is different (still talking REXX), same
problem with Linux. I/O is not handled the same for simple reads
and writes from my perspective.
Files on desktop systems are largely character streams; on
mainframes, record oriented. Beyond that, standard Rexx
stream I/O came late to CMS because developers economized
by using the available EXECIO.
Never-the-Less, I really appreciate REXX over EXEC, EXEC2 and CLIST.
Which Rexx do you use on desktop systems?
BTW, is the Regina mailing list active?
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