Rocket 204 - Entering Input; INMRL and INCCC Parameters; Line Continuation

Terminal Processing 3
Entering input
with a different terminal emulator that has different hexadecimal codes for the
particular characters.
In z/VM, for example, if LANGUSER=US you could use the following SET
OUTPUT commands to translate the left ([) and right (]) bracket characters:
’SET OUTPUT ad’ ’ba’x /* Display TN square brackets */
’SET OUTPUT bd’ ’bb’x
’SET INPUT ’ba’x ad /* Transform Chameleon sq brackets */
’SET INPUT ’bb’x ’bd’ /* to ones that C/370, LEXMARK, 7171 use */
Entering input
INMRL and INCCC parameters
In general, terminal input lines should not be longer than the line length of the
terminal. However, the settings of the INMRL and INCCC parameters
(described in the Model 204 Parameter and Command Reference Manual)
actually determine the maximum input line length at a particular terminal.
INMRL and INCCC usually are set by the system manager for each terminal in
the system. For 3270s, INMRL and INCCC also can be reset as a result of
resetting the MODEL parameter. MODEL allows for alternate screen sizes
within the 3270 family and is described in detail in the Model 204 Parameter
and Command Reference Manual.
The INMRL parameter specifies the maximum number of characters that the
user can enter on an input line. If the user attempts to enter a line that is longer
than the value of INMRL, the following error message is displayed:
*** M204.0481: TERMINAL INPUT LINE TOO LONG - IGNORED
and Model 204 ignores the entire line.
Line continuation
Lines that are longer than the value of INMRL can be continued. There are two
types of line continuations. When entering a User Language request or a
response to a $READ or $ENTER prompt, the user can enter a long line by
breaking it into several shorter lines and entering each one separately, adding
a hyphen to the end of all but the last line. Lines continued in this manner have
no maximum length. For more information on line continuation, refer to the
Model 204 User Language Manual.
Other types of input lines can be broken up by entering a nonblank character
in the column position specified by the INCCC parameter on all but the last line.
The number of characters in all portions of the input line (the original line and
all continuations, not including the continuation characters) is limited to the
value of the LIBUFF (length of the input buffer) parameter. If the complete line
exceeds LIBUFF, the line is lost and the following message is displayed:
*** M204.1251: LINE TOO LONG