using System;

using System.Globalization;

using System.Linq;

using System.Net;

using System.Text;

using System.Text.RegularExpressions;

​

​

namespace ConsoleApplication2

{

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.WriteLine(PrettyUrl("Hello there! This is some weird with accénted words and funcky - / Characters (29)")); 

        }

​

        public static string PrettyUrl(string s)

        {

            return Regex.Replace(RemoveDiacritics(s), "[^a-zA-Z0-9]+", "-").Trim('-');

        }

​

        public static string RemoveDiacritics(string text)

        {

            var normalizedString = text.Normalize(NormalizationForm.FormD);

            var stringBuilder = new StringBuilder();

            foreach (var c in normalizedString)

            {

                var unicodeCategory = CharUnicodeInfo.GetUnicodeCategory(c);

                if (unicodeCategory != UnicodeCategory.NonSpacingMark)

                {

                    stringBuilder.Append(c);

                }

            }

​

            return stringBuilder.ToString().Normalize(NormalizationForm.FormC);

        }

    }

}