defmodule ElixirFeedParser.Parsers.Helper do
  alias ElixirFeedParser.XmlNode

  def element(node, selector) do
    node |> XmlNode.find(selector) |> XmlNode.text
  end

  def element(node, selector, [attr: attr]) do
    node |> XmlNode.find(selector) |> XmlNode.attr(attr)
  end

  def elements(node, selector) do
    node |> XmlNode.map_children(selector, fn(e) -> XmlNode.text(e) end)
  end

  def elements(node, selector, [attr: attr]) do
    node |> XmlNode.map_children(selector, fn(e) -> XmlNode.attr(e, attr) end)
  end
end