Question

I have hash mapping

H = {
    "alc" => "AL",
    "alco" => "AL",
    "alcoh" => "AL",
    "alcohol" => "AL",
    "alcoholic" => "AL",
}

now I want to use a regex to represent all the keys, like
H={
/^alc/ => “AL”
}

later on I want to use H[“alc”] or H[“alco”] to retrieve the value. But if I use regex, I can not get the value properly. What should I do?

Answer 1

Make a subclass, inherit Hash class and override [] behaviour so it checks whether it matches each regex in your hash and returns the corresponding value.