public List<string> createTagTree()
        {

            string text = OpenFileAndExtract(this.fileName);

            List<string> tagList = new List<string>();
            string node = "";


            for (int index = 0; index < text.Length; index++)
            {
                if (text[index].Equals('<'))
                {
                    for (int index2 = index + 1; index2 < text.Length; index2++)
                    {
                        if (!text[index2].Equals(' ') && !text[index2].Equals('>'))
                        {
                            node = node + text[index2];

                        }
                        if (text[index2].Equals('>') || text[index2].Equals(' '))
                        {
                            break;
                        }
                    }
                    node = Regex.Replace(node, @"\t|\n|\r|", "");
                    tagList.Add(node);
                    node = "";
                }


            }

            return tagList;

        }