using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<=vs-)(.*?)(?=-vs)|(?<=\/)([^\/]*?)(?=-vs)|(?<=vs-)(.*?)(?=\/|$)";
string input = @"http://www.example.com/directory/some-text-a1-vs-sec-text-b2-vs-third-text-vs-last-text-c1/";
foreach (Match m in Regex.Matches(input, pattern))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
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