gistfile1.ex

  @doc """
  Convert a floki tree to html again
  """
  def tag_parser(list) do
    {tag, options, children} = list

    formatted_options = options |> Enum.map(fn option ->
      {key, value} = option
      "#{key}='#{value}'"
    end) |> Enum.join(" ")

    formatted_kids = children |> Enum.map(fn child ->
      if is_tuple child do
        tag_parser child
      else
        child |> String.replace "\n", "" 
      end
    end) |> Enum.join("") |> String.strip
    
    "<#{tag} #{formatted_options}>#{formatted_kids}</#{tag}>"
  end

gistfile2.txt

iex(23)> foo = "<p><a href='http://google.com'><span class='foo'>Yay</span></a></p>"
"<p><a href='http://google.com'><span class='foo'>Yay</span></a></p>"

iex(24)> tree = Floki.parse foo
{"p", [],
 [{"a", [{"href", "http://google.com"}],
   [{"span", [{"class", "foo"}], ["Yay"]}]}]}

iex(25)> Webmention.tag_parser tree
"<p ><a href='http://google.com'><span class='foo'>Yay</span></a></p>"