* Added the lower-case Shift-JIS files to the manifest. The upper-case ones

should be deprecated, but I need a Shift-JIS encoded XML file to test
  against, first.
* Added support for maintaining external entity occurances in DTDs
* Deprecated the use of Document::DECLARATION.  The new default declaration
  can be gotten with XMLDecl::default()
* Refactored the encoding support code.  It should be more robust now,
  and fixes a few bugs.
* The XPath string() function now deals with Element nodes properly.
* Serialization with Output objects now works as would be expected.
* Various code cleanups, some reducing the number of warnings that Ruby 1.8.x
  produces with REXML.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5144 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rexml/doctype.rb

@@ -163,6 +163,20 @@ module REXML
 		end
 	end
 
+	class ExternalEntity < Child
+		def initialize( src )
+			super()
+			@entity = src
+		end
+		def to_s
+			@entity
+		end
+		def write( output, indent )
+			output << @entity
+			output << "\n"
+		end
+	end
+
 	class NotationDecl < Child
 		def initialize name, middle, rest
 			@name = name