From: Aashish Kiran <lists@...>
Date: 2013-03-18T21:15:31+09:00
Subject: xml parsing in blocks

Hi,
I was writing a small program as follows, But could not get expected
output.
Can anyone help.
--------------------------xml_document.rb-----------------------------
  class XmlDocument
  attr_accessor :format

  def initialize(format = nil)
    self.format = format
  end

  def method_missing(name, *args, &block)
    self.class.class_eval do
      define_method(name) do |*args, &block|
        temp = ''
        if args[0]
          args[0].each do |k, v|
            temp = temp + " #{k}='#{v}'"
          end
        end

        if block
          temp = "<#{name}#{temp}>" + block.call + "</#{name}>"
        else
          temp = "<#{name}" + temp + "/>"
        end
        temp
      end
    end


    send(name, *args, &block)


  end
end
-----------------------end of xml_document.rb---------------------------
o/p : <hello><goodbye><come_back><ok_fine
be='that_way'/></come_back></goodbye></hello>
expected o/p : <hello>\n  <goodbye>\n    <come_back>\n      <ok_fine
be='that_way'/>\n    </come_back>\n  </goodbye>\n</hello>\n

@xml = XmlDocument.new(true)
    @xml.hello do
      @xml.goodbye do
        @xml.come_back do
          @xml.ok_fine(:be => "that_way")
        end
      end
    end.should ==
    "<hello>\n" +
    "  <goodbye>\n" +
    "    <come_back>\n" +
    "      <ok_fine be='that_way'/>\n" +
    "    </come_back>\n" +
    "  </goodbye>\n" +
    "</hello>\n"
  end

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