Real simple question... for good programmers

[WhatMeWorry]

string[] tokens = userSID.output.split!isWhite;
writeln("tokens = ", tokens);	

tokens = ["SID", "", "", "", "", "", "", "", "", "", "", "", "", 
"", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", 
"", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", 
"", "", "", "S-1-5-21-3823976785-3597194045-4221507747-1779", "", 
"", "", "", "", "", "", ""]	


Is there a clever way that I can discard all the extra null 
strings in the resultant string array?

I've been playing with isControl, whitespace, etc. Ready to rip 
my hair out.