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meeseeks

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Meeseeks is a library for parsing and extracting data from HTML and XML with CSS or XPath selectors.

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meeseeks lib meeseeks selector xpath expr boolean.ex
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lib/meeseeks/selector/xpath/expr/boolean.ex 

defmodule Meeseeks.Selector.XPath.Expr.Boolean do

  @moduledoc false



  use Meeseeks.Selector.XPath.Expr



  alias Meeseeks.Selector.XPath.Expr



  defstruct op: nil, e1: nil, e2: nil



  def eval(%Expr.Boolean{op: :or} = expr, node, document, context) do

    v1 = Expr.eval(expr.e1, node, document, context)

    |> Expr.Helpers.boolean(document)

    if v1 do

      true

    else

      Expr.eval(expr.e2, node, document, context)

      |> Expr.Helpers.boolean(document)

    end

  end



  def eval(%Expr.Boolean{op: :and} = expr, node, document, context) do

    v1 = Expr.eval(expr.e1, node, document, context)

    |> Expr.Helpers.boolean(document)

    if v1 do

      Expr.eval(expr.e2, node, document, context)

      |> Expr.Helpers.boolean(document)

    else

      false

    end

  end

end