defmodule Gulib.String.HTML do

  def unescape(nil), do: ""
  def unescape(text) do
    text
    |> String.replace("&", "&")
    |> String.replace("&lt;", "<")
    |> String.replace("&gt;", ">")
    |> String.replace("&quot;", "\"")
    |> String.replace("&apos;", "'")
  end

  def escape(nil), do: ""
  def escape(text) do
    text
    |> String.replace("&",  "&amp;")
    |> String.replace("<",  "&lt;")
    |> String.replace(">",  "&gt;")
    |> String.replace("\"", "&quot;")
    |> String.replace("'",  "&apos;")
  end

end