From 8d1f030825360c1b57cbdbea2ff04f2e38c8e78f Mon Sep 17 00:00:00 2001
From: Tobi Lutke <tobi@shopify.com>
Date: Wed, 11 Mar 2026 10:41:20 -0400
Subject: [PATCH] =?UTF-8?q?Replace=20manual=20rest=5Fblank=3F=20with=20reg?=
 =?UTF-8?q?ex=20skip=20+=20eos=3F=20check\n\nResult:=20{"status":"keep","c?=
 =?UTF-8?q?ombined=5F=C2=B5s":4047,"parse=5F=C2=B5s":2795,"render=5F=C2=B5?=
 =?UTF-8?q?s":1252,"allocations":25535}?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lib/liquid/cursor.rb | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/lib/liquid/cursor.rb b/lib/liquid/cursor.rb
index acd39444..5ec82876 100644
--- a/lib/liquid/cursor.rb
+++ b/lib/liquid/cursor.rb
@@ -79,15 +79,11 @@ module Liquid
 
     # Check if remaining bytes are all whitespace
     def rest_blank?
-      p = @ss.pos
-      len = @source.bytesize
-      while p < len
-        b = @source.getbyte(p)
-        return false unless b == SPACE || b == TAB || b == NL || b == CR || b == FF
-
-        p += 1
-      end
-      true
+      saved = @ss.pos
+      @ss.skip(/\s*/)
+      result = @ss.eos?
+      @ss.pos = saved
+      result
     end
 
     # Regex for identifier: [a-zA-Z_][\w-]*\??