# File lib/nokogiri/xml/builder.rb, line 266 def initialize options = {}, root = nil, &block if root @doc = root.document @parent = root else namespace = self.class.name.split('::') namespace[-1] = 'Document' @doc = eval(namespace.join('::')).new @parent = @doc end @context = nil @arity = nil @ns = nil options.each do |k,v| @doc.send("#{k}=""#{k}=", v) end return unless block_given? @arity = block.arity if @arity <= 0 @context = eval('self', block.binding) instance_eval(&block) else yield self end @parent = @doc end