using System;

using System.Text;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        byte[] rawBytes = new byte[] { 

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        };

        Regex BashPromptRegex = new Regex(@"\[[^@\r\n]+@[^]\r\n]+\]#\s", RegexOptions.Compiled);

​

        string utf8Text = Encoding.UTF8.GetString(rawBytes, 0, rawBytes.Length);

        Match matchAgainstUTF8 = BashPromptRegex.Match(utf8Text);

​

        string asciiText = Encoding.ASCII.GetString(rawBytes, 0, rawBytes.Length);

        Match matchAgainstASCII = BashPromptRegex.Match(asciiText);

​

        Console.WriteLine("Cut off according to UTF8 match");       

        Console.WriteLine("Regex Match Index: " + matchAgainstUTF8.Index.ToString());

        Console.WriteLine();

        Console.WriteLine("\"" + asciiText.Substring(0, matchAgainstUTF8.Index + matchAgainstUTF8.Length) + "\"");

        Console.WriteLine();

        Console.WriteLine();

        Console.WriteLine();

​

        Console.WriteLine("Cut off according to ASCII match");      

        Console.WriteLine("Regex Match Index: " + matchAgainstASCII.Index.ToString());

        Console.WriteLine();

        Console.WriteLine("\"" + asciiText.Substring(0, matchAgainstASCII.Index + matchAgainstASCII.Length) + "\"");

        Console.WriteLine();

        Console.WriteLine();

        Console.WriteLine();

}

}