data work.ds;
length string $20;
string = '12345';
count_spaces = countc(string,,'st') /*space count*/;
output;
string = 'A B';
count_spaces = countc(string,,'st') /*count space between two char*/;
output;
string = '1 2 3';
count_spaces = countc(string,,'st') ;/*count spaces between characters*/;
output;
string = ' a';
count_spaces = countc(string,,'st') /*count leading spaces*/;
output;
string='a ';
count_spaces=countc(string,right,'') /* count trailing spaces */;
run;
How to count trailing spaces