module Docs  class Parser    attr_reader :title, :html     def initialize(content)      @content = content      @html = document? ? parse_as_document : parse_as_fragment    end     private     DOCUMENT_RGX = /\A(?:\s|(?:<!--.*?-->))*<(?:\!doctype|html)/i     def document?      @content =~ DOCUMENT_RGX    end     def parse_as_document      document = Nokogiri::HTML.parse @content, nil, 'UTF-8'      @title = document.at_css('title').try(:content)      document    end     def parse_as_fragment      Nokogiri::HTML.fragment @content, 'UTF-8'    end  endend