# File lib/cgikit/parser.rb, line 576
    def xmldecl(version, encoding, standalone)
      s = ''
      s << %Q|<?xml version="#{version}"|
      
      if encoding
        @encoding = encoding
        s  << %Q| encoding="#{encoding}"|
      end
      
      if standalone
        s << %Q| standalone="#{standalone}"|
      end
      
      s <<  %Q|?>|
      @buf << s
    end