# File lib/graphviz/edge.rb, line 100
    def []( xAttrName )
      # Modification by axgle (http://github.com/axgle)
      if Hash === xAttrName
        xAttrName.each do |key, value|
          self[key] = value
        end
      else
        if @oAttrEdge[xAttrName.to_s]
          @oAttrEdge[xAttrName.to_s].clone 
        else
          nil
        end
      end
    end