Strip HTML Tags

public static string StripTags(this string input)

        {

            if (String.IsNullOrEmpty(input)) return String.Empty;

            // Special handeling of double line-breaks after a sentence ends

            const string lineBreakPattern = @"(\.<br.*?><br.*?>)(?=[A-Z])";

            input = Regex.Replace(input, lineBreakPattern, ". ");

            // Replace all tags

            const string htmlTagPattern = "<.*?>";

            input = Regex.Replace(input, htmlTagPattern, String.Empty);

            return input;

        }