using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"http:\/\/example\.com\/foo(\/[\w]+\b)?[^\/]";
string input = @"http://example.com/foo/apple
http://example.com/foo/bear
http://example.com/foo/cake
http://example.com/baa/apple
http://example.com/foo/apple/cake/bar/1
http://example.com/foo/bear/camel/bar/2
http://example.com/foo/bear/cake/bar/two
http://example.com/foo/bear/camel/tar/2
http://example.com/foo/bear/camel
http://example.com/foo/bear/camel/
http://example.com/foo/bear/camel/tar/2/";
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