From 0b19c0ce440a75c8ef9f138209d2d114a30749ee Mon Sep 17 00:00:00 2001
From: Tobi Lutke <tobi@shopify.com>
Date: Wed, 11 Mar 2026 07:21:19 -0400
Subject: [PATCH] use equal? for frozen array comparison in Lexer, skip
 whitespace with \s+

---
 lib/liquid/lexer.rb | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/liquid/lexer.rb b/lib/liquid/lexer.rb
index f1740dba..dfcdb558 100644
--- a/lib/liquid/lexer.rb
+++ b/lib/liquid/lexer.rb
@@ -29,6 +29,7 @@ module Liquid
     RUBY_WHITESPACE = [" ", "\t", "\r", "\n", "\f"].freeze
     SINGLE_STRING_LITERAL = /'[^\']*'/
     WHITESPACE_OR_NOTHING = /\s*/
+    WHITESPACE = /\s+/
 
     SINGLE_COMPARISON_TOKENS = [].tap do |table|
       table["<".ord] = COMPARISON_LESS_THAN
@@ -104,7 +105,7 @@ module Liquid
         output = []
 
         until ss.eos?
-          ss.skip(WHITESPACE_OR_NOTHING)
+          ss.skip(WHITESPACE)
 
           break if ss.eos?
 
@@ -114,10 +115,10 @@ module Liquid
           if (special = SPECIAL_TABLE[peeked])
             ss.scan_byte
             # Special case for ".."
-            if special == DOT && ss.peek_byte == DOT_ORD
+            if special.equal?(DOT) && ss.peek_byte == DOT_ORD
               ss.scan_byte
               output << DOTDOT
-            elsif special == DASH
+            elsif special.equal?(DASH)
               # Special case for negative numbers
               if (peeked_byte = ss.peek_byte) && NUMBER_TABLE[peeked_byte]
                 ss.pos -= 1