use std const main = {	var b : byte[:][6] 	/* dynamic str split */	check(std.strsplit("", ","), [][:])	check(std.strsplit("a,b,c ,,d,", ","), \		["a", "b", "c ", "", "d", ""][:])	check(std.strsplit("a,b,c ,,d,", ","), \		["a", "b", "c ", "", "d", ""][:]) 	/* buffered str split */	check(std.bstrsplit(b[:], "a,b", ","), \		["a", "b"][:])	check(std.bstrsplit(b[:], "a,b,c ,,d,", ","), \		["a", "b", "c ", "", "d", ""][:])	check(std.bstrsplit(b[:], "a,b,c,d,e,f,g,h", ","), \		["a", "b", "c", "d", "e", "f,g,h",][:]) 	/* tokenizing */	check(std.strtok(""), [][:])	check(std.strtok(" "), [][:])	check(std.strtok("\t"), [][:])	check(std.strtok("a b  c\td"), ["a", "b", "c", "d"][:]) 	/* buffered tokenizing */	check(std.bstrtok(b[:], "a b  c\td"), ["a", "b", "c", "d"][:])	check(std.bstrtok(b[:2], "a b  c\td"), ["a", "b  c\td"][:])	check(std.bstrtok(b[:2], "a b  c\td   "), ["a", "b  c\td"][:])} const check = {a, b	if a.len != b.len		std.fatal("a = {}, b = {}\n", a, b)		std.fatal("length mismatch: {} != {}: {}\n", a.len, b.len)	;;	for var i = 0; i < a.len; i++		if !std.eq(a[i], b[i])			std.fatal("element {} mismatched: '{}' != '{}'\n", i, a[i], b[i])		;;	;;}