Get everything after first occurence of a given string

I'm trying to cut away some parts of a URL for future processing. I just can't make it happen. I've crafted a demo to directly recreate the problem:

Code (CSharp):

1.         string outcome;
2.         outcome = @"Scripts\System\Renderer.cs";
3.         outcome = outcome?.Substring(outcome.IndexOf("Scripts", StringComparison.Ordinal));//.Split('\\').First();
4.         Debug.Log(outcome);        // rer.cs

Console says

rer.cs

, whaaaaaaaa? Shouldn't it say "Renderer.cs"?

What I'm trying to do is return part of a string, that is after the first occurrence of "Scripts", as such:

Code (CSharp):

1. C:\one\two\Assets\Scripts\Master\Registry.cs                // Master\Registry.cs
2. C:\tango\zulu\Assets\Scripts\Something\Item\Yep\Search.cs   // Something\Item\Yep\Search.cs
3. C:\Scripts\ohno.cs                                          // ohno.cs

I have this:

outcome = outcome?.Substring(outcome.IndexOf("Scripts\\", StringComparison.Ordinal)).TrimStart('/');;//.Split('\\').First();

But that's too long, there has to be a shorter way to do it with a single method. I'm pretty sure it's bad performing as well.

 

Use Substring

Code (CSharp):

1.         string outcome;
2.         outcome = @"Scripts\System\Renderer.cs";
3.             int scriptsIndex = outcome.IndexOf(@"Scripts\", StringComparison.OrdinalIgnoreCase);
4.          
5.             // -1 if not found
6.             if(scriptsIndex >= 0){
7.                 int scriptsIndexEnd = scriptsIndex + 8; // 8 = length of "Scripts\"
8.                 int stringLength = outcome.Length - scriptsIndexEnd;
9.                 outcome = outcome.Substring(scriptsIndexEnd, stringLength);
10.                 Console.WriteLine(outcome );
11.             }

 

Fantastic. Thank you. Exactly what I was looking for.