# File rexml/source.rb, line 58
  def encoding=(enc)
			@encoding = Source::encoding_val(enc)
			@buffer = utf8_enc(@buffer) if @encoding != UTF8
			@to_utf = true
			al = case @encoding
			when UTF16; utf16:utf16
			when UNILE; unile:unile
			when ISO_8859_1; asc:asc
			else
				@to_utf = false
				utf8:utf8
			end
			instance_eval "alias :encode #{al}"
		end