topic nth occurrence substring in a string in SAS Programming

nth occurrence substring in a string

BrahmanandaRao — Fri, 19 Apr 2024 04:53:08 GMT

data nth_occurence;
string="abc12abc56abc" ;
run;

how to find nth abc (nth occurence) substring in a string without regex

Ksharp — Fri, 19 Apr 2024 05:53:07 GMT

It looks like a student homework or a interview question?

%let n=3;

data nth_occurence;
string="abc12abc56abc" ;
p=0;
do n=1 to &n.;
 p=find(string,'abc','i',p+1);
end;
drop n;
run;