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

defmodule Meeseeks.Selector.XPath.Expr.AttributeNameTest do

  @moduledoc false



  use Meeseeks.Selector.XPath.Expr



  alias Meeseeks.Selector.XPath.Expr.AttributeNameTest



  defstruct namespace: nil, name: nil



  def eval(%AttributeNameTest{namespace: nil, name: "*"}, {_attr, _val}, _document, _context) do

    true

  end



  def eval(%AttributeNameTest{namespace: ns, name: "*"}, {attr, _val}, _document, _context) do

    case String.split(attr, ":", parts: 2) do

      [_name] -> false

      [namespace, _name] -> namespace == ns

    end

  end



  def eval(%AttributeNameTest{namespace: ns, name: nil}, {attr, _val}, _document, _context) do

    case String.split(attr, ":", parts: 2) do

      [_name] -> false

      [namespace, _name] -> namespace == ns

    end

  end



  def eval(%AttributeNameTest{namespace: nil, name: name}, {attr, _val}, _document, _context) do

    case String.split(attr, ":", parts: 2) do

      [local_name] -> local_name == name

      [_namespace, local_name] -> local_name == name

    end

  end



  def eval(%AttributeNameTest{namespace: ns, name: name}, {attr, _val}, _document, _context) do

    attr == ns <> ":" <> name

  end



  def eval(_expr, _element, _document, _context) do

    false

  end

end