----- Original Message -----
From: "Charles Mills" <charl...@mcn.org>
To: <IBM-MAIN@LISTSERV.UA.EDU>
Sent: Tuesday, September 28, 2021 11:19 AM
column 1 is reserved for carriage control. That seems to conflate source code
with SYSPRINT.
It does seem to, but in fact PL/I supports source listing formatting using ANSI
carriage control.
"The MARGINS option specifies which part of each compiler input record contains
PL/I statements, and the position of the ANS control character that formats the
listing, ..."
-- PL/I P/G
At some stage, the preprocessor commands %PAGE and %SKIP were
introduced to improve source listings. Maybe they were always there,
but I have a vague recollection that at some stage it was not necessary
to have the preprocessir activated to make them work.
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