From 7e15d99d90f99066d39c4771bb061a7682ed0cb5 Mon Sep 17 00:00:00 2001
From: Aidan Woods <aidantwoods@gmail.com>
Date: Mon, 9 Apr 2018 02:31:36 +0100
Subject: [PATCH] Remove regex from block rule

---
 Parsedown.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Parsedown.php b/Parsedown.php
index fc9533f..210e721 100644
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -749,7 +749,9 @@ class Parsedown
 
     protected function blockRule($Line)
     {
-        if (preg_match('/^(['.$Line['text'][0].'])([ ]*+\1){2,}+[ ]*+$/', $Line['text']))
+        $marker = $Line['text'][0];
+
+        if (substr_count($Line['text'], $marker) >= 3 and chop($Line['text'], " $marker") === '')
         {
             $Block = array(
                 'element' => array(