From 8316f47c1083def5f43f3d7f92ebf5dfff9bd56d Mon Sep 17 00:00:00 2001
From: Eduardo Mozart de Oliveira
 <2974895+eduardomozart@users.noreply.github.com>
Date: Thu, 1 Feb 2024 10:08:05 -0300
Subject: [PATCH] Attempts to restore Hogfather compatibility

The class PageResolver doesn't exists on DokuWiki Hogfather and older releases, so this PR attempts to fix https://github.com/samuelet/indexmenu/issues/291 by falling back to the old function "resolve_id" to parse NS if the class PageResolver isn't available.
---
 syntax/indexmenu.php | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/syntax/indexmenu.php b/syntax/indexmenu.php
index d91322d..82092d9 100644
--- a/syntax/indexmenu.php
+++ b/syntax/indexmenu.php
@@ -769,10 +769,14 @@ public function parseNs($ns, $id = false)
         if ($ns == '..') {
             $ns = ":";
         }
-        $ns = "$ns:arandompagehere";
-        $resolver = new PageResolver($id);
-        $ns = getNs($resolver->resolveId($ns));
-        return $ns === false ? '' : $ns;
+        if (class_exists('dokuwiki\File\PageResolver')) {
+            $ns = "$ns:arandompagehere";
+            $resolver = new PageResolver($id);
+            $ns = getNs($resolver->resolveId($ns));
+            return $ns === false ? '' : $ns;
+        } else {
+            return resolve_id(getNS($id), $ns);
+        }
     }
 
     /**