* lib/rss: rss library imported. [ruby-dev:22726]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rss/xmlparser.rb

@@ -0,0 +1,69 @@
+begin
+	require "xml/encoding-ja"
+rescue LoadError
+	require "xmlencoding-ja"
+	if defined?(Kconv)
+		module XMLEncoding_ja
+			class SJISHandler
+				include Kconv
+			end
+		end
+	end
+end
+
+module RSS
+	
+	class XMLParser < ::XML::Parser
+		
+		include XML::Encoding_ja
+
+		def listener=(listener)
+			@listener = listener
+		end
+
+		def startElement(name, attrs)
+			@listener.tag_start(name, attrs)
+		end
+		
+		def endElement(name)
+			@listener.tag_end(name)
+		end
+
+		def character(data)
+			@listener.text(data)
+		end
+
+		def xmlDecl(version, encoding, standalone)
+			@listener.xmldecl(version, encoding, standalone == 1)
+		end
+
+	end
+
+	class Parser < BaseParser
+
+		private
+		def _parse
+			begin
+				parser = XMLParser.new
+				parser.listener = @listener
+				parser.parse(@rss)
+			rescue XMLParserError => e
+				raise NotWellFormedError.new(parser.line){e.message}
+			end
+		end
+		
+	end
+	
+	class Listener < BaseListener
+
+		include ListenerMixin
+		
+		def xmldecl(version, encoding, standalone)
+			super
+			# Encoding is converted to UTF-8 when XMLParser parses XML.
+			@encoding = 'UTF-8'
+		end
+
+	end
+
+end