# File rss/converter.rb, line 9
    def initialize(to_enc, from_enc=nil)
      normalized_to_enc = to_enc.downcase.gsub(/-/, '_')
      from_enc ||= 'utf-8'
      normalized_from_enc = from_enc.downcase.gsub(/-/, '_')
      if normalized_to_enc == normalized_from_enc
        def_same_enc()
      else
        def_diff_enc = "def_to_#{normalized_to_enc}_from_#{normalized_from_enc}"
        if respond_to?(def_diff_enc)
          __send__(def_diff_enc)
        else
          def_else_enc(to_enc, from_enc)
        end
      end
    end

# File rss/converter.rb, line 25
    def convert(value)
      value
    end

# File rss/converter.rb, line 29
    def def_convert(depth=0)
      instance_eval("def convert(value)\nif value.kind_of?(String)\n\#{yield('value')}\nelse\nvalue\nend\nend\n", *get_file_and_line_from_caller(depth))
    end

# File rss/converter.rb, line 61
    def def_else_enc(to_enc, from_enc)
      def_iconv_convert(to_enc, from_enc, 0)
    end

# File rss/converter.rb, line 42
    def def_iconv_convert(to_enc, from_enc, depth=0)
      begin
        require "iconv"
        @iconv = Iconv.new(to_enc, from_enc)
        def_convert(depth+1) do |value|
          "begin\n@iconv.iconv(\#{value})\nrescue Iconv::Failure\nraise ConversionError.new(\#{value}, \"\#{to_enc}\", \"\#{from_enc}\")\nend\n"
        end
      rescue LoadError, ArgumentError, SystemCallError
        raise UnknownConversionMethodError.new(to_enc, from_enc)
      end
    end

# File rss/converter.rb, line 65
    def def_same_enc()
      def_convert do |value|
        value
      end
    end

# File rss/converter.rb, line 122
    def def_to_euc_jp_from_iso_2022_jp
      require "nkf"
      def_convert do |value|
        "NKF.nkf('-Je', #{value})"
      end
    end

# File rss/converter.rb, line 108
    def def_to_euc_jp_from_shift_jis
      require "nkf"
      def_convert do |value|
        "NKF.nkf('-Se', #{value})"
      end
    end

# File rss/converter.rb, line 92
    def def_to_euc_jp_from_utf_8
      def_uconv_convert_if_can('u8toeuc', 'EUC-JP', 'UTF-8', '-We')
    end

# File rss/converter.rb, line 129
    def def_to_iso_2022_jp_from_euc_jp
      require "nkf"
      def_convert do |value|
        "NKF.nkf('-Ej', #{value})"
      end
    end

# File rss/converter.rb, line 142
    def def_to_iso_8859_1_from_utf_8
      def_convert do |value|
        "array_utf8 = \#{value}.unpack('U*')\narray_enc = []\narray_utf8.each do |num|\nif num <= 0xFF\narray_enc << num\nelse\narray_enc.concat \"&\\#\\\#{num};\".unpack('C*')\nend\nend\narray_enc.pack('C*')\n"
      end
    end

# File rss/converter.rb, line 115
    def def_to_shift_jis_from_euc_jp
      require "nkf"
      def_convert do |value|
        "NKF.nkf('-Es', #{value})"
      end
    end

# File rss/converter.rb, line 100
    def def_to_shift_jis_from_utf_8
      def_uconv_convert_if_can('u8tosjis', 'Shift_JIS', 'UTF-8', '-Ws')
    end

# File rss/converter.rb, line 96
    def def_to_utf_8_from_euc_jp
      def_uconv_convert_if_can('euctou8', 'UTF-8', 'EUC-JP', '-Ew')
    end

# File rss/converter.rb, line 136
    def def_to_utf_8_from_iso_8859_1
      def_convert do |value|
        "#{value}.unpack('C*').pack('U*')"
      end
    end

# File rss/converter.rb, line 104
    def def_to_utf_8_from_shift_jis
      def_uconv_convert_if_can('sjistou8', 'UTF-8', 'Shift_JIS', '-Sw')
    end

# File rss/converter.rb, line 71
    def def_uconv_convert_if_can(meth, to_enc, from_enc, nkf_arg)
      begin
        require "uconv"
        def_convert(1) do |value|
          "begin\nUconv.\#{meth}(\#{value})\nrescue Uconv::Error\nraise ConversionError.new(\#{value}, \"\#{to_enc}\", \"\#{from_enc}\")\nend\n"
        end
      rescue LoadError
        require 'nkf'
        def_convert(1) do |value|
          "NKF.nkf(#{nkf_arg.dump}, #{value})"
        end
      end
    end