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mattsnyder/phone_number_attempt_2.exs

Created August 28, 2016 15:30
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phone_number_attempt_2.exs
@char_types [{~r/(?<number>\d)/, :digit}, {~r/(?<letter>\w)/, :letter}, {~r/(?<allowed>[\(\)\.\-])/, :allowed} ]
defp identify_char(char) do
{_, type} = Enum.find(@char_types, {nil, :unknown}, fn {reg, type} ->
String.match?(char, reg)
end)
{type, char}
end
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