From e3f33eaddfc44c53c14711c251fda851f3ca67da Mon Sep 17 00:00:00 2001
From: Markus Staab <markus.staab@redaxo.de>
Date: Sat, 20 Mar 2021 21:47:14 +0100
Subject: [PATCH] performance take1: use array access for non multibyte string
 offsets

---
 src/StringStream.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/StringStream.php b/src/StringStream.php
index aaf10e2..9e053f6 100644
--- a/src/StringStream.php
+++ b/src/StringStream.php
@@ -39,7 +39,12 @@ public function take1(): TakeResult
     {
         $this->guardEndOfStream();
 
-        $token = mb_substr($this->string, 0, 1);
+        $ord = \ord($this->string[0]);
+        if ($ord < 128) {
+            $token = $this->string[0];
+        } else {
+            $token = mb_substr($this->string, 0, 1);
+        }
         $position = $this->position->advance($token);
 
         return new TakeResult(