# File lib/PageTemplate/parser.rb, line 341
      def define_global_var(rx)
        @glossary ||= {}
        rx = /^(#{key.to_s}(?:\.\w+\??)*)(?:\s:(\w+))?$/ unless rx.is_a?(Regexp)
        @glossary[rx] = lambda { |match|
          ValueCommand.new(match[1],match[2])
        }
      end