Azure container name validation

gistfile1.cs

public static class Validator
{
  public static bool IsValidName(string name)
  {
    if (string.IsNullOrEmpty(name))
        return false;

    const string rootName = "$root";

    if (name.Equals(rootName))
      return true;

    if (name.Length < 3 || name.Length > 63)
      return false;

    const string pattern = @"^[a-z0-9](([a-z0-9\-)){1,61}[a-z0-9]$";

    // todo - check for consecutive hyphens

    return Regex.IsMatch(name, pattern);
  }
}