WebMatrix Slug Helper

Slug.cshtml

@using System.Text.RegularExpressions;
@*
    Code by Kamran Ayub, from his post at
    http://www.intrepidstudios.com/blog/2009/2/10/function-to-generate-a-url-friendly-string.aspx
    just added German special characters
*@

@helper  Generate( string title, int maxLength = 50 ) 
{
    var slug = title.ToLower();
    slug = Regex.Replace( slug, "ä", "ae");
    slug = Regex.Replace( slug, "ü", "ue");
    slug = Regex.Replace( slug, "ö", "oe");
    slug = Regex.Replace( slug, "ß", "ss");
    slug = Regex.Replace( slug, @"[^a-z0-9\s-]", "");
    slug = Regex.Replace( slug, @"[\s-]+", " ").Trim();
    slug = slug.Substring( 0, slug.Length <= maxLength ? slug.Length : maxLength).Trim();
    slug = Regex.Replace( slug, @"\s", "-");
    @:@slug    
}