public static function add_rewrite_rules() {

		/** Setup *************************************************************/

		// Add rules to top or bottom?
		$priority           = 'top';

		// Single Slugs
		$forum_slug         = bbp_get_forum_slug();
		$topic_slug         = bbp_get_topic_slug();
		$reply_slug         = bbp_get_reply_slug();
		$ttag_slug          = bbp_get_topic_tag_tax_slug();

		// Archive Slugs
		$user_slug          = bbp_get_user_slug();
		$view_slug          = bbp_get_view_slug();
		$search_slug        = bbp_get_search_slug();
		$topic_archive_slug = bbp_get_topic_archive_slug();
		$reply_archive_slug = bbp_get_reply_archive_slug();

		// Tertiary Slugs
		$feed_slug          = 'feed';
		$edit_slug          = bbp_get_edit_slug();
		$paged_slug         = bbp_get_paged_slug();
		$user_favs_slug     = bbp_get_user_favorites_slug();
		$user_subs_slug     = bbp_get_user_subscriptions_slug();
		$user_engs_slug     = bbp_get_user_engagements_slug();

		// Unique rewrite ID's
		$feed_id            = 'feed';
		$edit_id            = bbp_get_edit_rewrite_id();
		$view_id            = bbp_get_view_rewrite_id();
		$paged_id           = bbp_get_paged_rewrite_id();
		$search_id          = bbp_get_search_rewrite_id();
		$user_id            = bbp_get_user_rewrite_id();
		$user_favs_id       = bbp_get_user_favorites_rewrite_id();
		$user_subs_id       = bbp_get_user_subscriptions_rewrite_id();
		$user_tops_id       = bbp_get_user_topics_rewrite_id();
		$user_reps_id       = bbp_get_user_replies_rewrite_id();
		$user_engs_id       = bbp_get_user_engagements_rewrite_id();

		// Rewrite rule matches used repeatedly below
		$root_rule    = '/([^/]+)/?$';
		$feed_rule    = '/([^/]+)/' . $feed_slug  . '/?$';
		$edit_rule    = '/([^/]+)/' . $edit_slug  . '/?$';
		$paged_rule   = '/([^/]+)/' . $paged_slug . '/?([0-9]{1,})/?$';

		// Search rules (without slug check)
		$search_root_rule  = '/?$';
		$search_paged_rule = '/' . $paged_slug . '/?([0-9]{1,})/?$';

		/** Add ***************************************************************/

		// User profile rules
		$tops_rule       = '/([^/]+)/' . $topic_archive_slug . '/?$';
		$reps_rule       = '/([^/]+)/' . $reply_archive_slug . '/?$';
		$favs_rule       = '/([^/]+)/' . $user_favs_slug     . '/?$';
		$subs_rule       = '/([^/]+)/' . $user_subs_slug     . '/?$';
		$engs_rule       = '/([^/]+)/' . $user_engs_slug     . '/?$';
		$tops_paged_rule = '/([^/]+)/' . $topic_archive_slug . '/' . $paged_slug . '/?([0-9]{1,})/?$';
		$reps_paged_rule = '/([^/]+)/' . $reply_archive_slug . '/' . $paged_slug . '/?([0-9]{1,})/?$';
		$favs_paged_rule = '/([^/]+)/' . $user_favs_slug     . '/' . $paged_slug . '/?([0-9]{1,})/?$';
		$subs_paged_rule = '/([^/]+)/' . $user_subs_slug     . '/' . $paged_slug . '/?([0-9]{1,})/?$';
		$engs_paged_rule = '/([^/]+)/' . $user_engs_slug     . '/' . $paged_slug . '/?([0-9]{1,})/?$';

		// Edit Forum|Topic|Reply|Topic-tag
		add_rewrite_rule( $forum_slug . $edit_rule, 'index.php?' . bbp_get_forum_post_type()  . '=$matches[1]&' . $edit_id . '=1', $priority );
		add_rewrite_rule( $topic_slug . $edit_rule, 'index.php?' . bbp_get_topic_post_type()  . '=$matches[1]&' . $edit_id . '=1', $priority );
		add_rewrite_rule( $reply_slug . $edit_rule, 'index.php?' . bbp_get_reply_post_type()  . '=$matches[1]&' . $edit_id . '=1', $priority );
		add_rewrite_rule( $ttag_slug  . $edit_rule, 'index.php?' . bbp_get_topic_tag_tax_id() . '=$matches[1]&' . $edit_id . '=1', $priority );

		// User Pagination|Edit|View
		add_rewrite_rule( $user_slug . $tops_paged_rule, 'index.php?' . $user_id  . '=$matches[1]&' . $user_tops_id . '=1&' . $paged_id . '=$matches[2]', $priority );
		add_rewrite_rule( $user_slug . $reps_paged_rule, 'index.php?' . $user_id  . '=$matches[1]&' . $user_reps_id . '=1&' . $paged_id . '=$matches[2]', $priority );
		add_rewrite_rule( $user_slug . $favs_paged_rule, 'index.php?' . $user_id  . '=$matches[1]&' . $user_favs_id . '=1&' . $paged_id . '=$matches[2]', $priority );
		add_rewrite_rule( $user_slug . $subs_paged_rule, 'index.php?' . $user_id  . '=$matches[1]&' . $user_subs_id . '=1&' . $paged_id . '=$matches[2]', $priority );
		add_rewrite_rule( $user_slug . $engs_paged_rule, 'index.php?' . $user_id  . '=$matches[1]&' . $user_engs_id . '=1&' . $paged_id . '=$matches[2]', $priority );
		add_rewrite_rule( $user_slug . $tops_rule,       'index.php?' . $user_id  . '=$matches[1]&' . $user_tops_id . '=1',                               $priority );
		add_rewrite_rule( $user_slug . $reps_rule,       'index.php?' . $user_id  . '=$matches[1]&' . $user_reps_id . '=1',                               $priority );
		add_rewrite_rule( $user_slug . $favs_rule,       'index.php?' . $user_id  . '=$matches[1]&' . $user_favs_id . '=1',                               $priority );
		add_rewrite_rule( $user_slug . $subs_rule,       'index.php?' . $user_id  . '=$matches[1]&' . $user_subs_id . '=1',                               $priority );
		add_rewrite_rule( $user_slug . $engs_rule,       'index.php?' . $user_id  . '=$matches[1]&' . $user_engs_id . '=1',                               $priority );
		add_rewrite_rule( $user_slug . $edit_rule,       'index.php?' . $user_id  . '=$matches[1]&' . $edit_id      . '=1',                               $priority );
		add_rewrite_rule( $user_slug . $root_rule,       'index.php?' . $user_id  . '=$matches[1]',                                                       $priority );

		// Topic-View Pagination|Feed|View
		add_rewrite_rule( $view_slug . $paged_rule, 'index.php?' . $view_id . '=$matches[1]&' . $paged_id . '=$matches[2]', $priority );
		add_rewrite_rule( $view_slug . $feed_rule,  'index.php?' . $view_id . '=$matches[1]&' . $feed_id  . '=$matches[2]', $priority );
		add_rewrite_rule( $view_slug . $root_rule,  'index.php?' . $view_id . '=$matches[1]',                               $priority );

		// Search All
		add_rewrite_rule( $search_slug . $search_paged_rule, 'index.php?' . $paged_id .'=$matches[1]', $priority );
		add_rewrite_rule( $search_slug . $search_root_rule,  'index.php?' . $search_id,                $priority );
	}