clear; clc;

data = "www.csie.ntu.edu.tw";
split(data, ".")

date = "2022-04-20";
replace(date, "-", "/")

filename = "twse.xlsx";
endsWith(filename, "xlsx")

text = "bat cat can car coat court CUT ct CAT-scan";
regexp(text, 'c[aieou]+t', "match")