AoMEngineLibrary.Anim.AnimFile.ConvertToXml C# (CSharp) Method

        public static void ConvertToXml(FileStream animFile, FileStream xmlFile)
        {
            using (TextReader reader = new StreamReader(animFile))
            {
                XDocument XDoc = new XDocument(new XElement("AnimFile"));
                XNode elem = XDoc.FirstNode;
                string line;
                bool nextLevel = false;

                while ((line = reader.ReadLine()) != null)
                {
                    if (string.IsNullOrEmpty(line) || string.IsNullOrWhiteSpace(line))
                    {
                        continue;
                    }

                    line = line.Trim();

                    if (line.StartsWith("//") || line.StartsWith("*/") || line.StartsWith("/*"))
                    {
                        if ((elem.Parent == null || nextLevel) && elem is XElement)
                        {
                            ((XElement)elem).Add(new XComment(line));
                        }
                        else
                        {
                            elem.AddAfterSelf(new XComment(line));
                            elem = elem.NextNode;
                        }
                    }
                    else if (line == "{")
                    {
                        nextLevel = true;
                    }
                    else if (line == "}")
                    {
                        elem = elem.Parent;
                    }
                    else
                    {
                        int spaceIndex = line.IndexOf(' ');
                        string function;
                        string data = string.Empty;
                        if (spaceIndex == -1)
                        {
                            function = line;
                        }
                        else
                        {
                            function = line.Substring(0, spaceIndex);
                            data = line.Substring(++spaceIndex);
                        }

                        if ((elem.Parent == null || nextLevel) && elem is XElement)
                        {
                            ((XElement)elem).Add(new XElement(function));
                            elem = ((XElement)elem).LastNode;
                            nextLevel = false;
                        }
                        else
                        {
                            elem.AddAfterSelf(new XElement(function));
                            elem = elem.NextNode;
                        }

                        if (spaceIndex == -1)
                        {
                            continue;
                        }

                        if (function.Equals("tag", StringComparison.InvariantCultureIgnoreCase) |
                            function.Equals("connect", StringComparison.InvariantCultureIgnoreCase) |
                            function.Equals("length", StringComparison.InvariantCultureIgnoreCase) |
                            function.Equals("replacetexture", StringComparison.InvariantCultureIgnoreCase) |
                            function.StartsWith("v", StringComparison.InvariantCultureIgnoreCase))
                        {
                            ((XElement)elem).Value = data;
                        }
                        else
                        {
                            ((XElement)elem).Add(new XAttribute("data", data));
                        }
                    }
                }

                XmlWriterSettings settings = new XmlWriterSettings
                {
                    Indent = true,
                    IndentChars = AnimFile.IndentString,
                };
                using (XmlWriter writer = XmlWriter.Create(xmlFile, settings))
                {
                    XDoc.Save(writer);
                }
            }
        }