    # File lib/plugins/uri-open.rb, line 20
      def self.open_uri(uri)
        cmd =
          unless config.plugins.uri_open.browser.empty?
            config.plugins.uri_open.browser
          else
            case RUBY_PLATFORM
            when /linux/; 'firefox'
            when /mswin(?!ce)|mingw|bccwin/; 'explorer'
            when /cygwin/; 'cygstart -o'
            else; 'open'
            end
          end
        system "#{cmd} #{uri}"
      end