module Nokogiri::Decorators::Slop

def method_missing name, *args, &block
  prefix = implied_xpath_context
  if args.empty?
    list = xpath("#{prefix}#{name.to_s.sub(/^_/, '')}")
  elsif args.first.is_a? Hash
    hash = args.first
    if hash[:css]
      list = css("#{name}#{hash[:css]}")
    elsif hash[:xpath]
      conds = Array(hash[:xpath]).join(' and ')
      list = xpath("#{prefix}#{name}[#{conds}]")
    end
  else
    CSS::Parser.without_cache do
      list = xpath(
        *CSS.xpath_for("#{name}#{args.first}", :prefix => prefix)
      )
    end
  end
  super if list.empty?
  list.length == 1 ? list.first : list
end

def respond_to_missing? name, include_private = false
  prefix = implied_xpath_context
  list = xpath("#{prefix}#{name.to_s.sub(/^_/, '')}")
  !list.empty?
end