Variables That Control Processing

The control variables allow your CLIST to direct the processing of a command. The following list describes the control variables and their valid values.

DGTCONTN

This variable directs the processor to either continue or stop processing the list depending on the return code. DGTCONTN has a character attribute with a length of one character. You can set this variable to one of the following values:

' ': The default value for this variable is a blank. This value directs the processor to continue processing the list entries until all the entries have been processed or until an error occurs. The processor reacts to the different error codes as described in Line Operator and List Command Feedback and Fixes.
N: This value directs the processor to stop processing the list entries. No entries are processed after a DGTCONTN with a value of N is found.
Y: This value directs the processor to continue processing the list entries regardless of the return code. The list entries that cause the error are not processed. However, processing continues until all the entries have been processed.

You can also code your CLIST to be interruptible. This support allows you to interrupt a CLIST with your ATTN key when the CLIST is invoked as a list command. See TSO Programming for an example of how to code this attention support.

DGTLISTC

This variable affects the line operator history for the current list entry. DGTLISTC has a character attribute with a length of one character. You can set this variable to one of the following values:

Y: This value updates the line operator history for the current list entry. This value is the default.
N: This value does not update the line operator history for the current entry.