We won't implement $filter_topic.

Perhaps, if somebody asks for that.

TODO.md

@@ -1,5 +1,4 @@
 # TODO
 
-1. Make $filter_topic usable
 1. Usability: When pressing "Back" on the topic page, we go back to the top of
    the list of topics, losing the position where we were.

config.php-example

@@ -8,10 +8,10 @@ $db_pass = 'phpbb';
 $db_name = 'phpbb';
 $db_prefix = 'phpbb3_';
 
-// Do not archive these forums and/or topics. The typical use case is if you
-// have a private/hidden forum.
+// Do not archive these forums. The typical use case is if you have a
+// private/hidden forum. This script doesn't understand or process phpBB
+// permissions system, you have to do it manually here.
 $filter_forum = array();
-$filter_topic = array();
 
 $template_dir = 'templates/';
 $target_dir = 'static/';

convert.php

@@ -170,7 +170,7 @@ function generate_topics() {
 function generate_forums() {
 	global $db;
 	global $forums, $topics;
-	global $filter_forum, $filter_topic;
+	global $filter_forum;
 	global $db_prefix;
 	global $forum_name, $forum_description;
 
@@ -216,7 +216,7 @@ function generate_forums() {
 function generate_main() {
 	global $db;
 	global $categories, $forums, $forums_tree;
-	global $filter_forum, $filter_topic;
+	global $filter_forum;
 	global $db_prefix;
 	global $forum_name, $forum_description;
 	global $phpbb_version;