On Thu, 30 Jan 1997, Roy Brown wrote:

> [log in to unmask]>, "Dr. Ferenc Nagy" <[log in to unmask]>
> writes
>
> which is how you suppress unwanted output from MPE. Ferenc wants to go
> one stage further than I had previously considered, and suppress output
> from *executed* MPE commands. As you will see, this is most desirable in
> the context shown.)
>
> follows:
>
> ....
>  if cierror=907 then
>     flyback
>     setjcw !jc=0
> ......
>
> Then create the UDC 'flyback' as follows:
>
>   flyback
>   option list
>   comment Esc&a-99c-2YEscMEscMEscMEscA
>
> Replace each 'Esc' with a real Escape character, of course.
> The commands are from the 2392A book and they:
>
> Fly back up to 99 characters left, which should get to column 0
> Fly back 2 lines upwards, over the lines you don't want shown.
> Delete 3 lines downwards (your two, plus this line itself)
> Fly back one upwards, so that you don't get a blank line.
Thank you, Roy:
I implemented your suggestion as follows:
flyback N=2,Y=Y
option list
comment Esc&a-133c-!N!YEscMEscMEscMEscA

1. c/99/133/ for 132 column mode
2. c/2/!N/ to fly back more than 2 line sif necessary
3. c/Y/!Y/ otherwise the command interpreter reported an error (!NY was in
my first trial).

 Thank you for the suggestion.
                                              Frank

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