Removing word or character from string followed by space or before space in c#

Question

I have a string

string name = \"AL QADEER UR AL REHMAN AL KHALIL UN\";

How would I remove all characters AL, UR,

Answer 1

static void TestRegex()
{
    string name = "AL QADEER UR AL REHMAN AL KHALIL UN";
    // Add other strings you want to remove
    string pattern = @"\b(AL|UR|UN)\b";
    name = Regex.Replace(name, pattern, String.Empty);
    // Remove extra spaces
    name = Regex.Replace(name, @"\s{2,}", " ").Trim();
    Console.WriteLine(name);
}

UPDATE

You can generate the pattern this way:

// Generate pattern
var list = new List { "AL", "UR", "UN" };
string pattern = @"\b(" + String.Join("|", list) + @")\b";