1  module REXML
   2    module Encoding
   3      begin
   4        require 'uconv'
   5 
   6        def decode_sjis content
   7          Uconv::sjistou8(content)
   8        end
   9 
  10        def encode_sjis(str)
  11          Uconv::u8tosjis(str)
  12        end
  13      rescue LoadError
  14        require 'nkf'
  15 
  16        SJISTOU8 = '-Swm0x'
  17        U8TOSJIS = '-Wsm0x'
  18 
  19        def decode_sjis(str)
  20          NKF.nkf(SJISTOU8, str)
  21        end
  22 
  23        def encode_sjis content
  24          NKF.nkf(U8TOSJIS, content)
  25        end
  26      end
  27 
  28      b = proc do |obj|
  29        class << obj
  30          alias decode decode_sjis
  31          alias encode encode_sjis
  32        end
  33      end
  34      register("SHIFT-JIS", &b)
  35      register("SHIFT_JIS", &b)
  36    end
  37  end