From 269157a8f40dfdac082f39befd69f170263d2ce1 Mon Sep 17 00:00:00 2001
From: Leonard Richardson <leonardr@segfault.org>
Date: Tue, 7 May 2013 08:19:02 -0400
Subject: Now that lxml's segfault on invalid doctype has been fixed, fix a  
 corresponding problem on the Beautiful Soup end that was previously  
 invisible. [bug=984936]

---
 bs4/builder/_htmlparser.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'bs4/builder/_htmlparser.py')

diff --git a/bs4/builder/_htmlparser.py b/bs4/builder/_htmlparser.py
index ede5cec..e34c9fa 100644
--- a/bs4/builder/_htmlparser.py
+++ b/bs4/builder/_htmlparser.py
@@ -85,6 +85,9 @@ class BeautifulSoupHTMLParser(HTMLParser):
         self.soup.endData()
         if data.startswith("DOCTYPE "):
             data = data[len("DOCTYPE "):]
+        elif data == 'DOCTYPE':
+            # i.e. "<!DOCTYPE>"
+            data = ''
         self.soup.handle_data(data)
         self.soup.endData(Doctype)
 
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