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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.ex
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lib/meeseeks/selector/xpath.ex 

defmodule Meeseeks.Selector.XPath do

  @moduledoc false



  alias Meeseeks.Error

  alias Meeseeks.Selector.XPath.{Parser, Transpiler, Tokenizer}



  def compile_selectors(selectors_string) when is_binary(selectors_string) do

    selectors_string

    |> Tokenizer.tokenize()

    |> Parser.parse_expression()

    |> Transpiler.to_selectors()

    |> unwrap_single_selector()

  end



  def compile_selectors(invalid_input) do

    raise Error.new(:xpath_selector, :invalid_input, %{

            description: "Cannot compile selectors, input should be a string",

            input: invalid_input

          })

  end



  defp unwrap_single_selector([selector]), do: selector

  defp unwrap_single_selector(selectors), do: selectors

end