From f5056049eb4be0e8afa111cfa70d6b3c9caed786 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADctor=20Losada=20Hern=C3=A1ndez?=
 <losada.hernandez.victor@gmail.com>
Date: Fri, 30 Oct 2026 00:30:44 +0100
Subject: [PATCH] add proper pattern validation

---
 client/components/combobox.jsx                           | 2 +-
 client/homebrew/editor/metadataEditor/metadataEditor.jsx | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/client/components/combobox.jsx b/client/components/combobox.jsx
index c89ccb908..230d079db 100644
--- a/client/components/combobox.jsx
+++ b/client/components/combobox.jsx
@@ -14,7 +14,7 @@ const Combobox = ({
 		suggestMethod           : 'includes',
 		filterOn                : []  // should allow as array to filter on multiple attributes, or even custom filter
 	},
-	valuePatterns = /.+/,
+	valuePatterns = '.+',
 	options = [],
 	keepValueOnClose = false,
 	...props
diff --git a/client/homebrew/editor/metadataEditor/metadataEditor.jsx b/client/homebrew/editor/metadataEditor/metadataEditor.jsx
index 54332b468..feb1cf2b1 100644
--- a/client/homebrew/editor/metadataEditor/metadataEditor.jsx
+++ b/client/homebrew/editor/metadataEditor/metadataEditor.jsx
@@ -264,6 +264,7 @@ const MetadataEditor = ({
 					defaultValue={metadata.lang || ''}
 					keepValueOnClose={true}
 					placeholder='en'
+					valuePatterns="^[a-z]{2,3}(-[A-Z][a-z]{3})?(-[A-Z]{2})?$"
 					onSelect={(value)=>handleLanguage(value)}
 					onEntry={(e)=>{
 						e.target.setCustomValidity('');	//Clear the validation popup while typing