Extracting subvalues from delimited field

Question

Iu2019m trying to extract a value from a variable with 12 values delimitated by a colon. i.e. fieldname( v1; v2; v3 etc) (it is string variable) where I want to extract v2.  Actually, itu2019s the budget amounts entered for 12 months, and I will need to extract each month one at a time through the year based on the month in the period-ending-date parameter. How do I extract values by their position order?
Sample: contains values 1111;2222;3333;4444 etc. If month({?period ending date}) = 2, then return fieldu2019s second position, 2222. If month({?period ending date}) = 4, return the fourth position 4444.

Answer 1

Hi. The extraction formulae
stringvar array arr;
arr:=split({gl_bgt.amount},";");
if month({?Period Ending}) <= ubound(arr) and month({?Period Ending}) >0 then
arr[month({?Period Ending})] else "0";
worked in part. It broke out values for the budgeted account numbers. But when the actual gl-account.amount had unbudgeted entries, the above formulae suppressed those accounts instead of allowing an unbudgeted variance comparison.
I've changed the table links to no avail, put the forumlae in a subreport with a shared numbervar passed back, (converting the arr stringvar tonumber) but it returns zeros only. The amounts are visible in the subreport, but nothing pulls through.
Any solutions?