* Changes to the encoding mechanism. If iconv is found, it is used first

for encoding changes.  This should be the case on all 1.8 installations.
  When it isn't found (<1.6), the native REXML encoding mechanism is used.
  This cleaned out some files, and tightened up the code a bit; and iconv
  should be faster than the pure Ruby code.
* Changed deprecated assert_not_nil to assert throughout the tests.
* Parse exceptions are a little more verbose, and extend RuntimeError.
* Bug fixes to XPathParser
* The Light API is still shifting, like the sands of the desert.
* Fixed a new Ruby 1.8.0 warning, added some speed optimizations, and
  tightened error reporting in the base parser


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rexml/parsers/lightparser.rb

@@ -16,25 +16,25 @@ module REXML
       end
 
 			def parse
-				root = context = REXML::Light::Node.new([ :document ])
+				root = context = [ :document ]
 				while true
 					event = @parser.pull
 					case event[0]
 					when :end_document
 						break
 					when :end_doctype
-						context = context.parent
+						context = context[1]
 					when :start_element, :start_doctype
-						new_node = REXML::Light::Node.new(event)
+						new_node = event
 						context << new_node
-						new_node.parent = context
+						new_node[1,0] = [context]
 						context = new_node
 					when :end_element, :end_doctype
-						context = context.parent
+						context = context[1]
 					else
-						new_node = REXML::Light::Node.new(event)
+						new_node = event
 						context << new_node
-						new_node.parent = context
+						new_node[1,0] = [context]
 					end
 				end
 				root