Messages that require a response

For messages that require a response, MIP uses an interrogation mark as a standard answer. The interrogation mark is a reserved keyword in MIP. When the user enters an interrogation mark, MIP outputs the meaning and the response texts for this message and repeats the question.

%  CMD0213 TERMINATE PROGRAM? (Y=YES; N=NO)
?                                                                      1.
%  ? The user requested program termination by hitting a
%    function key or by NEXT line input.
%  ! Y: causes the END statement to be executed 
%    N: termination request is ignored 
%  CMD0213 TERMINATE PROGRAM? (Y=YES; N=NO)                            2.

1. The user enters a question mark. MIP outputs the meaning and the response texts for this message.

2. The message text is displayed a second time so that the user can then hopefully respond more easily.