new (WWW::Mechanize::File)

    # File lib/www/mechanize/file.rb, line 25
          def initialize(uri=nil, response=nil, body=nil, code=nil)
            @uri, @body, @code = uri, body, code
            @response = Headers.new

            # Copy the headers in to a hash to prevent memory leaks
            if response
              response.each { |k,v|
                @response[k] = v
              }
            end

            @filename = 'index.html'

            # Set the filename
            if disposition = @response['content-disposition']
              disposition.split(/;\s*/).each do |pair|
                k,v = pair.split(/=/, 2)
                @filename = v if k && k.downcase == 'filename'
              end
            else
              if @uri
                @filename = @uri.path.split(/\//).last || 'index.html'
                @filename << ".html" unless @filename =~ /\./
              end
            end

            yield self if block_given?
          end