解析SSA格式字幕文件

public class clsSSA
    {
        #region 属性

        /// <summary>
        /// 解析文件路径
        /// </summary>
        public string FilePath { get; set; }

        /// <summary>
        /// 保存文件路径
        /// </summary>
        public string SavePath { get; set; }

        /// <summary>
        /// 保存文件名
        /// </summary>
        public string FileName { get; set; }

        #endregion


        #region 成员变量

        /// <summary>
        /// 文本内容
        /// </summary>
        public List<string> contents = new List<string>();

        #endregion


        #region 构造函数

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="filePath">文件源路径</param>
        /// <param name="savePath">文件保存路径</param>
        public clsSSA(string filePath, string savePath, string fileName)
        {
            this.FilePath = filePath;
            this.SavePath = savePath;
            this.FileName = fileName;
        }

        #endregion
       

        #region 自定义方法

        /// <summary>
        /// 作用：解析SSA文件
        /// 作者：殳亚军
        /// 编写日期：2012-04-28
        /// </summary>
        public bool AnalysisSSA()
        {
            //定义文件流
            FileStream fs = null;
            //定义读取器
            StreamReader sr = null;
            //是否解析成功
            bool isAnalysised = true;
            try
            {
                fs = new FileStream(this.FilePath, FileMode.Open);
                sr = new StreamReader(fs, Encoding.Default);
                //每行内容
                string line = string.Empty;
                while ((line = sr.ReadLine()) != null)
                {
                    //将每行按“,”分割成数组
                    string[] lines = line.Split(':');
                    if (lines[0] == "Dialogue")
                    {
                        string tempLines = line.Substring(0, line.IndexOf("!Effect") + 7);
                        string[] tempLinesArray = tempLines.Split(',');
                        //取出起始时间和文本
                        string start = tempLinesArray[1];
                        string end = tempLinesArray[2];
                        string content = string.Empty;
                        if (line.Contains('}'))
                        {
                            content = line.Substring(line.LastIndexOf('}') + 1);
                        }
                        else
                        {
                            content = line.Substring(line.IndexOf("!Effect") + 8);
                        }
                        //判读是否是中英双语
                        if (content.Contains(@"\N"))
                        {
                            string[] strs = content.Split(new string[] { @"\N" }, StringSplitOptions.RemoveEmptyEntries);
                            string temp = string.Empty;
                            foreach (string s in strs)
                            {
                                temp += s + "\t";
                            }
                            content = temp;
                        }
                        //存储起来
                        contents.Add(start + "," + end + "," + content);
                    }
                }  

                //写入文件
                if (!WriteToFile(contents))
                {
                    isAnalysised = false;
                }
            }
            catch (Exception e)
            {
                isAnalysised = false;  
                return false;
            }
            finally
            {
                //关闭读取器
                sr.Close();
                //关闭文件流
                fs.Close();

            }
            return isAnalysised;
        }

        /// <summary>
        /// 作用：写入文本文件
        /// 作者：殳亚军
        /// 编写日期：2012-04-28
        /// </summary>
        /// <param name="contents"></param>
        private bool WriteToFile(List<string> contents)
        {
            //定义文件流
            FileStream fs = null;
            //定义读取器
            StreamWriter sw = null;
            //是否写入成功
            bool isWrited = true;
            try
            {
                string fileName = this.FileName.Substring(0, this.FileName.LastIndexOf('.')) + ".txt";
                string savePath = this.SavePath + fileName;

                fs = new FileStream(savePath, FileMode.Create);
                sw = new StreamWriter(fs, Encoding.Default);
                //开始写
                foreach (string s in contents)
                {
                    sw.WriteLine(s);
                }
                //清空缓冲区
                sw.Flush();
            }
            catch (Exception e)
            {
                isWrited = false;
                return false;
            }
            finally
            {
                //关闭流
                sw.Close();
                fs.Close();
            }
            return isWrited;
        }

        #endregion
        
    }