W dniu 07.05.2025 o 05:35, Paul Gilmartin pisze:
On Tue, 6 May 2025 22:02:03 +0000, Lennie Bradshaw wrote:
...
Or you could supply the incoming data set instream (in xmit format for
example). This latter method requires you to be sure you can terminate your
instream data set correctly. So, the first 2 characters of each record MUST NOT
match the termination string you specify in your JCL DLM value. I have used
that method in the past, but scanned the incoming stream for several pairs of
characters, then choose one that was not present.
...
That's interesting. I'm pretty sure I've at tines supplied instream SYSYN with
no
explicit delimiter. Ir was simply the last data set in the last job step. But
was
there nonetheless an implied delimiter; a digraph that I fortuitously avoided?
I.e. is there no construct notionally "DLM=none"?
Update: since few years the delimiter in can be 2 to 18 characters long.
(it applies to JES2, not JES3).
18 characters.
IMHO it's enough to find unique string.
It's more than enough to find a string which is not a part of any
programming language, command language or any human language.
Of course there's still possibility to use DD * for binary or generated
random data, but in real world I would call it very unlikely use of DD *.
--
Radoslaw Skorupka
Lodz, Poland
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