Regular Expression Help

[Mrhasty]

Hi,

I'm having some trouble getting this regular expression to work. I need R1 to match s1 ONLY and R2 to match s2 ONLY. No matter what I do though, R1 matches s2. Here is basicly what I think it should be but I've tried tons over other things. No dice.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Regex R1 = new Regex(@"You partially hit (.+?)(?!.*with.*)for (\d*,?\d+) points of (.+) damage\.");
            Regex R2 = new Regex(@"You partially hit (.+) with (.+) for (\d*,?\d+) points of (.+) damage\.");

            string s1 = "You partially hit Roryk for 37 points of Shadow damage.";
            string s2 = "You partially hit Pongsakorn with Pounce for 99 points of Shadow damage.";

            if (R1.IsMatch(s1))
            {
                Console.WriteLine("Match #1");
            }

            if (R1.IsMatch(s2))
            {
                Console.WriteLine("Match #2");
            }

            if (R2.IsMatch(s1))
            {
                Console.WriteLine("Match #3");
            }

            if (R2.IsMatch(s2))
            {
                Console.WriteLine("Match #4");
            }
        }
    }
}

Output:
Match #1
Match #2
Match #4

[Mrhasty]

Got. Needed to use ?<! which I believe is negative lookbehind, the chart that I was following had it listed as the same as ?!= which I tested instead cause I was loading these from an XML file, where the < is not so friendly.

[JonnyPoet]

If this is already resolved please use the threadtools and sign it as resolved Thx