From b1912c89ac61bad0607840089df225c9d5497ee2 Mon Sep 17 00:00:00 2001
From: SukkaW <isukkaw@gmail.com>
Date: Sun, 23 Feb 2025 22:59:55 +0800
Subject: [PATCH] Perf: limit split when parsing hosts

---
 Build/lib/parse-filter/hosts.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Build/lib/parse-filter/hosts.ts b/Build/lib/parse-filter/hosts.ts
index d551db7a..37ef044e 100644
--- a/Build/lib/parse-filter/hosts.ts
+++ b/Build/lib/parse-filter/hosts.ts
@@ -3,8 +3,10 @@ import { fetchAssets } from '../fetch-assets';
 import { fastNormalizeDomainWithoutWww } from '../normalize-domain';
 import { onBlackFound } from './shared';
 
+const rSpace = /\s+/;
+
 function hostsLineCb(line: string, set: string[], includeAllSubDomain: boolean, meta: string) {
-  const _domain = line.split(/\s/)[1]?.trim();
+  const _domain = line.split(rSpace, 3)[1]?.trim();
   if (!_domain) {
     return;
   }