Colorear consola

color.ex

defmodule Color do
  @moduledoc false
  
  def color_reset , do: "\x1b[0m"
  def color_red, do: "\x1b[31m"
  def color_green, do: "\x1b[32m"
  def color_yellow, do: "\x1b[33m"

  @doc """
  function to add color to string to be used in console apps.
  Example 1 :
  "hello world" |> color_me(:green) |> IO.puts
  Example 2 :
  "#{color_green}hello world#{color_reset}" |> IO.puts
  """
  def color_me(value, atom \\ nil) do
    color = case atom do
      :red -> color_red
      :green -> color_green
      :yellow -> color_yellow
      _ -> ""
    end
    "#{color}#{value}#{color_reset}"
  end
end