From 2cecf54a320156e61ce8a975dc66f63d1f88977c Mon Sep 17 00:00:00 2001
From: Gerrit Uitslag <klapinklapin@gmail.com>
Date: Wed, 7 Feb 2024 22:49:00 +0100
Subject: [PATCH] fix warnings if <doctoc> on page without navigation

---
 syntax/toc.php | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/syntax/toc.php b/syntax/toc.php
index 74d6fec..c468479 100644
--- a/syntax/toc.php
+++ b/syntax/toc.php
@@ -217,6 +217,7 @@ public function render($format, Doku_Renderer $renderer, $options)
                 }
             } else {
                 $pagedata = p_get_metadata($pageid, 'docnavigation');
+                //can be null if <doctoc> on page without navigation.
             }
 
             //check referer
@@ -229,14 +230,16 @@ public function render($format, Doku_Renderer $renderer, $options)
             }
 
             $previouspage = $pageid;
-            $nextpageid = $pagedata['next']['link'];
-            if (empty($nextpageid)) {
+            if (empty($pagedata['next']['link'])) {
                 $pageid = null;
-            } elseif ($options['hidepagelink'] ? isset($recursioncheck[$nextpageid]) : isset($list[$nextpageid])) {
-                msg(sprintf($this->getLang('recursionprevented'), $pageid, $nextpageid), -1);
-                $pageid = null;
-            } else {
-                $pageid = $nextpageid;
+            } else{
+                $nextpageid = $pagedata['next']['link'];
+                if ($options['hidepagelink'] ? isset($recursioncheck[$nextpageid]) : isset($list[$nextpageid])) {
+                    msg(sprintf($this->getLang('recursionprevented'), $pageid, $nextpageid), -1);
+                    $pageid = null;
+                } else {
+                    $pageid = $nextpageid;
+                }
             }
         }