On Sun, 3 Jul 2016 20:19:04 +0000, J R wrote:
>"I believe OUTTRAP catches lines written by PUTLINE(?) but not by TPUT.
>Why must there be two of them? If TPUT must be retained for comaptibility,
>couldn't it be made simply a wrapper for PUTLINE, providing uniform behavior?"
>
>TPUT is specifically for terminal output. PUTLINE is more generalized and
>issues TPUT if the current output is destined for the terminal.
>
It should be the other way around. Shmuel on occasion mentioned (e.g.):
https://listserv.ua.edu/cgi-bin/wa?A2=ibm-main;e78c1cac.1306
>What went wrong?
It started early: George Mealy is alleged to have called it "The rape
of the design integrity of OS/360" and blamed it on a lack of
standards enforcement.
By the OS/360 paradigm, TSO should have written to SYSTSPRT and
read from SYSTSIN, which could have been allocated to TERMINAL for
interactive sessions or other data sets for logging. A subsystem could
have been provided to "tee" SYSTSPRT to both TERMINAL and another
data set for interaction with logging.
-- gil
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