# File lib/xtemplate/node.rb, line 16
    def initialize(name = nil, attrs = nil, children = nil, parent = nil,
                   data_path = nil, propagation = true,
                   exname = nil, exattr = nil, expand = nil, alt = nil, opt={})
      @name  = name
      @attrs = attrs || []
      @children = children || []
      @parent = parent
      @data_path = data_path
      @exname = exname
      @exattr = exattr
      @expand = expand # :normal, :strip
      @alt    = alt
      @option = opt
      if( propagation.nil? )
        @propagation = true
      else
        @propagation = propagation
      end
    end