From 520234e4dfe94048fcbf7dd283e142b8ac781582 Mon Sep 17 00:00:00 2001
From: Matthias Schmidt <gravatronics@live.com>
Date: Fri, 22 May 2020 14:56:11 +0200
Subject: [PATCH] Fix regular expression in AnchorFunctionTemplatePlugin

---
 .../template/plugin/AnchorFunctionTemplatePlugin.class.php      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/system/template/plugin/AnchorFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/AnchorFunctionTemplatePlugin.class.php
index 1f517bdad0..75c6efdb75 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/AnchorFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/AnchorFunctionTemplatePlugin.class.php
@@ -98,7 +98,7 @@ class AnchorFunctionTemplatePlugin implements IFunctionTemplatePlugin {
 		$classes = [];
 		$additionalParameters = '';
 		foreach ($tagArgs as $name => $value) {
-			if (!preg_match('~[a-z]+([A-z]+)+~', $name)) {
+			if (!preg_match('~^[a-z]+([A-z]+)+$~', $name)) {
 				throw new \InvalidArgumentException("Invalid additional argument name '{$name}'.");
 			}
 			
-- 
2.20.1