use std const main = {	var i	var sp 	sp = std.strsplit("a,b,c,d", ",")	for i = 0; i < sp.len; i++		std.put("\"{}\"\n", sp[i])	;;	std.slfree(sp) 	sp = std.strsplit("a,,b,c,,d", ",")	for i = 0; i < sp.len; i++		std.put("\"{}\"\n", sp[i])	;;	std.slfree(sp) 	sp = std.strsplit("a--b---b--c---c-d--d", "---")	for i = 0; i < sp.len; i++		std.put("\"{}\"\n", sp[i])	;;	std.slfree(sp)}