删除字符串的转义字符

Question

I am having a bit of a problem with Escape characters is a string that I am reading from a txt file, They are causing an error later in my program, they need to be removed but I can't seem to filter them out

  public static List<string> loadData(string type)
    {
        List<string> dataList = new List<string>();
        try
        {
            string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "Data");
            string text = File.ReadAllText(path + type);


            string[] dataArray = text.Split(',');


            foreach (var data in dataArray)
            {
                string dataUnescaped = Regex.Unescape(data);
                if (!string.IsNullOrEmpty(dataUnescaped) && (!dataUnescaped.Contains(@"\r") || (!dataUnescaped.Contains(@"\n"))))
                {
                    dataList.Add(data);
                }
            }
            return dataList;
        }
        catch(Exception e)
        {
            Console.WriteLine(e);
            return dataList;
        }
    }

I have tried text.Replace(@"\r\n") and an if statement but I just cant seem to remove them from my string

Any ideas will be appreciated

Answer 1

If you add the @ Sign before a string that means you specify that you want a string without having to escape any characters.

So if you wanted a path without @ you would need to do this:

string s = "c:\\myfolder\\myfile.txt"

---

But if you add the @ before your \n\r isntead of the escaped sequence Windows New Line you would instead get the string "\n\r" .

So this will result in you removing all occurrences of the string "\n\r" . Instead of NewLines like you want to:

text.Replace(@"\r\n")

---

To fix that you would need to use:

text = text.Replace(Environment.NewLine, string.Empty);

You can use Environment.NewLine as well instead of \r and \n , because Environment knows which OS you are currently on and change the replaced character depeding on that.