class WWW::Mechanize::Chain::ResponseBodyParser

def handle(ctx, params)
  response = params[:response]
  response_body = params[:response_body]
  uri = params[:uri]
  content_type = nil
  unless response['Content-Type'].nil?
    data = response['Content-Type'].match(/^([^;]*)/)
    content_type = data[1].downcase.split(',')[0] unless data.nil?
  end
  # Find our pluggable parser
  params[:page] = @pluggable_parser.parser(content_type).new(
    uri,
    response,
    response_body,
    response.code
  ) { |parser|
    parser.mech = params[:agent] if parser.respond_to? :mech=
    if parser.respond_to?(:watch_for_set=) && @watch_for_set
      parser.watch_for_set = @watch_for_set
    end
  }
  super
end

def initialize(pluggable_parser, watch_for_set)
  @pluggable_parser = pluggable_parser
  @watch_for_set = watch_for_set
end