切分文本行

/// <summary>
        /// 切分文本行
        /// </summary>
        /// <param name="src">源内容</param>
        /// <param name="separators">分隔符</param>
        /// <param name="quotes">引号对</param>
        /// <returns></returns>
        public string[] cutTextLine(string src, string[] separators, string[][] quotes)
        {
            if (src == null || src.Equals("")) { return new string[0]; }
            ArrayList als = new ArrayList();
            int point = 0;
            while (point < src.Length)
            {
                while (point < src.Length && src.Substring(point, 1).Equals(" ")) { point++; }  // 过滤前空
                int q_point = -1;    // 引号位
                for (int i = 0; i < quotes.Length; i++)
                {                    // 以左引号打头
                    if (point + quotes[i][0].Length <= src.Length && quotes[i][0].Equals(src.Substring(point, quotes[i][0].Length)))
                    {
                        q_point = i;
                        break;
                    }
                }
                if (q_point < 0)   // 非引号打头
                {
                    int k = point;
                    int s_point = -1;    // 分隔符位
                    while (k < src.Length && s_point < 0)
                    {
                        for (int i = 0; i < separators.Length; i++)            // 找分隔符
                        {
                            if (k + separators[i].Length <= src.Length && separators[i].Equals(src.Substring(k, separators[i].Length)))
                            {
                                s_point = i;
                                break;
                            }
                        }
                        if (s_point < 0) { k++; }
                    }
                    string s = (point < k ? src.Substring(point, k - point) : "");
                    als.Add(s);
                    point = (s_point < 0 ? k : k + separators[s_point].Length);
                }
                else
                {
                    point += quotes[q_point][0].Length;
                    int k = src.IndexOf(quotes[q_point][1], point);
                    if (k < 0 || k >= src.Length)     // 没找到后续右引号
                    {
                        string s = src.Substring(point);
                        als.Add(s);
                        point = src.Length;
                    }
                    else
                    {
                        string s = src.Substring(point, k - point);
                        als.Add(s);
                        point = k + quotes[q_point][1].Length;
                    }
                    while (point < src.Length && src.Substring(point, 1).Equals(" ")) { point++; }  // 过滤后空
                    for (int i = 0; i < separators.Length; i++)           // 跳过分隔符
                    {
                        if (point + separators[i].Length <= src.Length && separators[i].Equals(src.Substring(point, separators[i].Length)))
                        {
                            point += separators[i].Length;
                            break;
                        }
                    }
                }
            }
            string[] ss = new string[als.Count];
            for (int i = 0; i < als.Count; i++) { ss[i] = (string)als[i]; }
            als.Clear();
            return ss;
        }