From ebfdace4c6bc949937316f60056fdc487716087f Mon Sep 17 00:00:00 2001
From: Emanuil Rusev <hello@erusev.com>
Date: Wed, 5 Feb 2014 14:18:05 +0200
Subject: [PATCH] reference labels should be case insensitive

---
 Parsedown.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Parsedown.php b/Parsedown.php
index 30444b0..aafc32b 100755
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -433,6 +433,7 @@ class Parsedown
                         $reference = array();
 
                         $label = substr($outdented_line, 1, $position - 1);
+                        $label = strtolower($label);
 
                         $substring = substr($outdented_line, $position + 2);
                         $substring = trim($substring);