From 609ff8ca19f1c4c168a81121074b91cc0f0d4c47 Mon Sep 17 00:00:00 2001
From: Yen Chi Hsuan <yan12125@gmail.com>
Date: Wed, 5 Jul 2017 23:23:35 +0800
Subject: [utils] Support attributes with no values in
 get_elements_by_attribute()

---
 youtube_dl/utils.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'youtube_dl/utils.py')

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 39860e9d1..fdf5e29e7 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -365,9 +365,9 @@ def get_elements_by_attribute(attribute, value, html, escape_value=True):
     retlist = []
     for m in re.finditer(r'''(?xs)
         <([a-zA-Z0-9:._-]+)
-         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'))*?
+         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'|))*?
          \s+%s=['"]?%s['"]?
-         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'))*?
+         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'|))*?
         \s*>
         (?P<content>.*?)
         </\1>
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