From 99525fdd768c5530c1436d01a66ed39793a5f26f Mon Sep 17 00:00:00 2001
From: Aidan Woods <aidantwoods@gmail.com>
Date: Tue, 26 Mar 2019 21:38:21 +0000
Subject: [PATCH] Match GFM spec for extended autolinks There is a small list
 of characters which may precede an autolink

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

diff --git a/src/Components/Inlines/Url.php b/src/Components/Inlines/Url.php
index 666a117..48c2430 100644
--- a/src/Components/Inlines/Url.php
+++ b/src/Components/Inlines/Url.php
@@ -38,7 +38,12 @@ final class Url implements BacktrackingInline
      */
     public static function build(Excerpt $Excerpt, State $State)
     {
-        if (\preg_match('/\bhttps?+:[\/]{2}[^\s<]+\b\/*+/ui', $Excerpt->context(), $matches, \PREG_OFFSET_CAPTURE)) {
+        if (\preg_match(
+            '/(?<=^|\s|[*_~(])https?+:[\/]{2}[^\s<]+\b\/*+/ui',
+            $Excerpt->context(),
+            $matches,
+            \PREG_OFFSET_CAPTURE
+        )) {
             return new self($matches[0][0], \intval($matches[0][1]));
         }