From ae5aac353425e83e71b911c2574f0cfefda6417f Mon Sep 17 00:00:00 2001
From: Ignatius Bagus <ignatius.mbs@gmail.com>
Date: Mon, 28 Jun 2021 10:30:03 +0700
Subject: [PATCH] stricter regex pattern

---
 src/compiler/compile/css/Selector.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/compiler/compile/css/Selector.ts b/src/compiler/compile/css/Selector.ts
index f255e5506a..26660320a9 100644
--- a/src/compiler/compile/css/Selector.ts
+++ b/src/compiler/compile/css/Selector.ts
@@ -147,8 +147,7 @@ export default class Selector {
 		for (const block of this.blocks) {
 			for (const selector of block.selectors) {
 				if (selector.type === 'PseudoClassSelector' && selector.name === 'global') {
-					const match = selector.children[0].value.match(/\(.*?\)|([^\\],)/);
-					if (match && match[1]) {
+					if (/[^\\],(?![^([]+(?:\)|\]))/.test(selector.children[0].value)) {
 						component.error(selector, {
 							code: 'css-invalid-global-selector',
 							message: ':global(...) must contain a single selector'