C＃正则表达式匹配三引号“”

Question

I have a text file that contain 3 quotations (""") in various lines in text. It also have 6 blank spaces before that in every line. I have tried doing @"\\s{6}\\"{3}"; and various cases, but it seems like c# doesn't like when it sees 3 quotations mark together. What I'm trying to do is to find that and add a new line after.

This is what i have tried:

 string pattern4 = @"\s{6}"{3}";

 var match4 = Regex.Match(body, pattern4, RegexOptions.Multiline);
 while (match4.Success)
 {
    string index = """;
    output.Insert(index, "\r\n");
 }

Sample Input :

  """Step:    33    And I enter 

  Step:    34    And I set the  

Desired Output:

  """

  Step:    33    And I enter    

  Step:    34    And I set THE

Answer 1

To escape a quote inside a verbatim string (starts with @) use double quotes. Also there is a Regex.Replace method that you could use like this:

string input = @"      """"""Step:    33    And I enter 

Step:    34    And I set the  ";

string pattern = @"\s{6}""{3}";
string replacement = "\"\"\"\r\n";

string output = Regex.Replace(input, pattern, replacement);