elixir regex Cheat sheet

gistfile1.txt

iex(1)> s1 = "Hello, World!"
"Hello, World!"
iex(2)> s2 = "ボリスくん"
"ボリスくん"
iex(3)> Regex.scan(~r/\S/, s1)
[["H"], ["e"], ["l"], ["l"], ["o"], [","], ["W"], ["o"], ["r"], ["l"], ["d"],
 ["!"]]
iex(4)> Regex.scan(~r/\S/, s2)
[[<<227>>], [<<131>>], [<<156>>], [<<227>>], [<<131>>], [<<170>>], [<<227>>],
 [<<130>>], [<<185>>], [<<227>>], [<<129>>], [<<143>>], [<<227>>], [<<130>>],
 [<<147>>]]
iex(5)> Regex.scan(~r/\w/, s2)
[[<<227>>], [<<227>>], [<<170>>], [<<227>>], [<<227>>], [<<227>>]]
iex(6)> Regex.scan(~r/\w/, s1)
[["H"], ["e"], ["l"], ["l"], ["o"], ["W"], ["o"], ["r"], ["l"], ["d"]]
iex(7)> Regex.match?(~r/^.*\.jpg$/, "file.jpg")
true
iex(8)> Regex.match?(~r/^.*\.(jpg|png)$/i, "file.jpg")
true
iex(9)> Regex.match?(~r/^.*\.(jpg|png)$/i, "file.png")
true
iex(10)> Regex.match?(~r/^.*\.(jpg|png)$/i, "file.gif")
false