using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(\#)([a-zA_Z0-9]*)(\#)(\s{1})(.*)\n{1}(\s{2})([a-zA_Z0-9]*)(\s{3})(.*)";
string substitution = @"$6$2$8$5\n#$7#$4$9";
string input = @"#1# OPTION 1
2 OPTION 2
3 OPTION 3
4 OPTION 4
5 OPTION 5
6 OPTION 6
7 OPTION 7
8 OPTION 8
9 OPTION 9
10 OPTION 10
100 OPTION 100
1000 OPTION 1000
[REPLACEALL](\#)([a-zA_Z0-9]*)(\#)(\s{1})(.*)\n{1}(\s{2})([a-zA_Z0-9]*)(\s{3})(.*)[WITH]$6$2$8$5
#$7#$4$9";
Regex regex = new Regex(pattern);
string result = regex.Replace(input, substitution);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx