3
Answers

descent recursive parser

Marco

Marco

15y
4.5k
1
Hello,
 I must implement a such parser (based on a LL(1) grammar). I did this
            try {
                // Create the reader.
                XmlReaderSettings settings = new XmlReaderSettings();
                settings.IgnoreWhitespace = true;                               
                XmlReader reader = XmlReader.Create(new XmlTextReader(filename), settings);
               
                while (reader.Read()) {
                    switch (reader.NodeType) {
                        case XmlNodeType.Element:
                            Hashtable attributes = new Hashtable();
                            string strURI = reader.NamespaceURI;
                            string strName = reader.Name;
                            Console.Write(strURI + " " + "<" + strName );
                           
                            if (reader.HasAttributes) {
                                for (int i = 0; i < reader.AttributeCount; i++) {
                                    reader.MoveToAttribute(i);
                                    attributes.Add(reader.Name, reader.Value);
                                    Console.Write(" " + reader.Name + "=" + "\"" + reader.Value + "\"");
                                }
                                Console.WriteLine(">");
                            }
                            else {
                                Console.WriteLine(">");
                            }
                         
                            break;
                    
                        case XmlNodeType.EndElement:
                            string strNameEND = reader.Name;
                            Console.WriteLine("</" + strNameEND + ">");
                            break;
                        // Todo
                        //case XmlNodeType.Text:
                        // Todo
                        default:
                            break;
                    }
                }

Can I say that using SAx I'm doing a recursive descent parser or not?
thanks
Answers (3)