check regular expression before adding/saving filter

tt-rss.js

@@ -1250,3 +1250,53 @@ function showFeedsWithErrors() {
 	displayDlg('feedUpdateErrors');
 }
 
+function handle_rpc_reply(transport, scheduled_call) {
+	try {
+		if (offline_mode) return false;
+
+		if (!transport.responseText && db) {
+			offlineConfirmModeChange();
+			return false;
+		} 
+
+		if (transport.responseXML) {
+
+			if (!transport_error_check(transport)) return false;
+
+			var message = transport.responseXML.getElementsByTagName("message")[0];
+
+			if (message) {
+				message = message.firstChild.nodeValue;
+
+				if (message == "UPDATE_COUNTERS") {
+					setInitParam("last_article_id", -1);
+					_force_scheduled_update = true;
+				}
+			}
+
+			var counters = transport.responseXML.getElementsByTagName("counters")[0];
+	
+			if (counters)
+				parse_counters(counters, scheduled_call);
+
+			var runtime_info = transport.responseXML.getElementsByTagName("runtime-info")[0];
+
+			if (runtime_info)
+				parse_runtime_info(runtime_info);
+
+			if (feedsSortByUnread())
+				resort_feedlist();
+
+			hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
+
+		} else {
+			notify_error("Error communicating with server.");
+		}
+
+	} catch (e) {
+		exception_error("handle_rpc_reply", e, transport);
+	}
+
+	return true;
+}
+