* Non-String attributes are now converted to Strings; this means code such as

elem.attributes["a"] = 1
  will not cause an error when dumping the XML.  It also means that:
  elem.attributes["a"]    # => "1", not 1
* Transitive indenting has been cleaned up.
* Fixed a potential bug in parsing non-ASCII encoded streams
* Fixed a bug where trying to fill in ParseException data was causing an
  IO error (stream closed)
* Changes to Text mean that Element (and Text) can be used outside of a
  Document context.
* In some rare cases, the base parser wasn't reading enough bytes from the
  stream for the parsing algorithm to work properly.  This has been fixed
  (this was Ruby bug #48426)


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6209 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rexml/text.rb

@@ -1,4 +1,8 @@
 require 'rexml/entity'
+require 'rexml/doctype'
+require 'rexml/child'
+require 'rexml/doctype'
+require 'rexml/parseexception'
 
 module REXML
 	# Represents text nodes in an XML document
@@ -271,16 +275,16 @@ module REXML
 			copy = input.clone
 			# Doing it like this rather than in a loop improves the speed
 			if doctype
-				copy.gsub!( EREFERENCE, '&' )
+				copy = copy.gsub( EREFERENCE, '&' )
 				doctype.entities.each_value do |entity|
-					copy.gsub!( entity.value, 
+					copy = copy.gsub( entity.value, 
 						"&#{entity.name};" ) if entity.value and 
 							not( entity_filter and entity_filter.include?(entity) )
 				end
 			else
-				copy.gsub!( EREFERENCE, '&' )
+				copy = copy.gsub( EREFERENCE, '&' )
 				DocType::DEFAULT_ENTITIES.each_value do |entity|
-					copy.gsub!(entity.value, "&#{entity.name};" )
+					copy = copy.gsub(entity.value, "&#{entity.name};" )
 				end
 			end
 			copy