Regular Expression Help
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Thread: Regular Expression Help

  1. #1
    Join Date
    Mar 2009
    Posts
    2

    Regular Expression Help

    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.

    Code:
    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

  2. #2
    Join Date
    Mar 2009
    Posts
    2

    Re: Regular Expression Help

    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.

  3. #3
    Join Date
    Mar 2005
    Location
    Vienna, Austria
    Posts
    4,537

    Re: Regular Expression Help

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

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