PRoConEvents.MULTIbalancer.UpdateFromWhitelist C# (CSharp) Method

        private void UpdateFromWhitelist(PlayerModel player)
        {
            if (player == null) return;
            foreach (String item in fSettingWhitelist) {
            try {
            // Example item: name B U S D R
            List<String> tokens = new List<String>(Regex.Split(item, @"\s+"));
            if (tokens.Count < 1) continue;
            String guid = (String.IsNullOrEmpty(player.EAGUID)) ? INVALID_NAME_TAG_GUID : player.EAGUID;
            String xt = ExtractTag(player);
            if (String.IsNullOrEmpty(xt)) xt = INVALID_NAME_TAG_GUID;
            // If nothing matches, keep looking
            if (!(tokens[0] == player.Name || tokens[0] == xt || tokens[0] == guid)) continue;
            // Reset
            player.Whitelist = 0;
            // Set new flags
            if (tokens.Count == 1) { // no option codes means set all of them
                player.Whitelist = WL_ALL;
                DebugWrite("^9DEBUG: UpdateFromWhitelist(^b" + player.FullName + "^n) set ALL flags!", 7);
            } else {
                for (int i = 1; i < tokens.Count; ++i) {
                    switch (tokens[i]) {
                        case "B":
                            player.Whitelist |= WL_BALANCE;
                            DebugWrite("^9DEBUG: UpdateFromWhitelist(^b" + player.FullName + "^n) set WL_BALANCE flag!", 7);
                            break;
                        case "U":
                            player.Whitelist |= WL_UNSTACK;
                            DebugWrite("^9DEBUG: UpdateFromWhitelist(^b" + player.FullName + "^n) set WL_UNSTACK flag!", 7);
                            break;
                        case "S":
                            player.Whitelist |= WL_SWITCH;
                            DebugWrite("^9DEBUG: UpdateFromWhitelist(^b" + player.FullName + "^n) set WL_SWITCH flag!", 7);
                            break;
                        case "D":
                            player.Whitelist |= WL_DISPERSE;
                            DebugWrite("^9DEBUG: UpdateFromWhitelist(^b" + player.FullName + "^n) set WL_DISPERSE flag!", 7);
                            break;
                        case "R":
                            player.Whitelist |= WL_RANK;
                            DebugWrite("^9DEBUG: UpdateFromWhitelist(^b" + player.FullName + "^n) set WL_RANK flag!", 7);
                            break;
                        default:
                            ConsoleWarn("Skipping unknown Whitelist code " + tokens[i] + ", in item: " + item);
                            break;
                    }
                }
            }
            return;
            } catch (Exception e) {
            ConsoleException(e);
            }
            }
        }