From befc6506534f19e7bd1b15adea563d541846a9d9 Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Thu, 14 Nov 2024 12:21:02 +0100
Subject: [PATCH] Return a sane list of defaults if the selected highlighters
 are empty

In previous versions it was possible that the selection got lost, eventually breaking the implementation.
---
 .../lib/system/bbcode/BBCodeHandler.class.php | 25 ++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php b/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php
index 60814a938b..ea228ee98d 100644
--- a/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php
@@ -189,7 +189,30 @@ class BBCodeHandler extends SingletonFactory
      */
     public function getCodeBlockLanguages(): array
     {
-        return \explode("\n", StringUtil::unifyNewlines(\MESSAGE_PUBLIC_HIGHLIGHTERS));
+        $highlighters = \explode("\n", StringUtil::unifyNewlines(\MESSAGE_PUBLIC_HIGHLIGHTERS));
+        if ($highlighters !== []) {
+            return $highlighters;
+        }
+
+        return [
+            'c',
+            'cpp',
+            'csharp',
+            'css',
+            'go',
+            'html',
+            'java',
+            'javascript',
+            'json',
+            'php',
+            'python',
+            'ruby',
+            'rust',
+            'sql',
+            'typescript',
+            'xml',
+            'yaml',
+        ];
     }
 
     /**
-- 
2.20.1