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Versions: 112
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Contents
defmodule Phone do
@moduledoc """
Utilities to work with phone numbers.
"""
@doc """
Clean up a phone number.
Returns 0000000000 if the phone number is bad.
"""
@spec number(String.t) :: String.t
def number(raw) do
raw
|> to_parts
|> to_string
end
@spec to_parts(String.t) :: [String.t]
defp to_parts(raw) do
Regex.run(~r/^\D*?1?\D*?(\d{3})\D*(\d{3})\D*(\d{4})$/, raw, [capture: :all_but_first]) || ["000", "000", "0000"]
end
@doc """
Get the area code of a phone number.
The area code is the first three digits of a cleaned up phone number.
"""
@spec area_code(String.t) :: String.t
def area_code(str) do
str
|> to_parts
|> List.first
end
@spec prefix(String.t) :: String.t
def prefix(str) do
str
|> to_parts
|> Enum.at(1)
end
@spec line(String.t) :: String.t
def line(str) do
str
|> to_parts
|> List.last
end
@doc """
Pretty print a phone number.
"""
@spec pretty(String.t) :: String.t
def pretty(str) do
"(#{area_code(str)}) #{prefix(str)}-#{line(str)}"
end
end
Version data entries
112 entries across 112 versions & 1 rubygems