Hello all. I'm trying to prevent the report from running if I selected an invalid holiday file (file that isn't found). Otherwise, the report will run 'normally', but all the business day calculations will be wrong.

So I have:
SET HDAY = &myHolidayFile

Is there a way to detect the error and abort the report if the holiday file name isn't found?
((FOC1892) FILE NOT FOUND error). Thanks in advance.

Interesting.

Normally, this would trap a WebFOCUS error:

-SET &MYHOLIDAYFILE = 'BAD';
-SET &ECHO=ALL;

SET HDAY = &MYHOLIDAYFILE
-RUN

-IF &FOCERRNUM NE 0 GOTO FOCUS_ERROR;

-TYPE HOLIDAY FILE FOUND

-GOTO PROGRAM_END

-FOCUS_ERROR

-TYPE WEBFOCUS ERROR: &FOCERRNUM

-PROGRAM_END

Except, for this particulr request, &FOCERRNUM is 0 even though an error message is displayed.

Weird.

SET HDAY=whatever
-RUN
-? SET HDAY &HDAY

will retrieve the new setting (in &HDAY). The value will remain unchanged (typically blank) if the SET HDAY command failed.

and i would offer this way, if you're on a windows box
FILEDEF HOLIDAY DISK D:\IBI\APPS\FHOLIDAY.FTM (or .txt or whatever)
CMD STATE D:\IBI\APPS\FHOLIDAY.FTM
-RUN
-IF &RETCODE EQ 0 GOTO process ;
-* the return code is 0 when ok, not zero (-1 i think) when it fails, ie files doesn't exist
-TYPE HOLIDAY FILE ISN'T THERE FOLKS.
-GOTO EOJ ;
-process
TABLE FILE HOLIDAY...etc

Thank you all for replying. Yup, I was puzzled myself when FOCERRNUM was staying at 0. And unfortunately, we're running this on a unix box. However, j.g.'s approach worked for me.
So it looks like:
- ? SET varName &XYZ

pumps the value of varName into a new variable, &XYZ. Very cool. Thanks.