From 13b230a1b57a448bfe26c4b7b889cd57698c20ec Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Fri, 17 Apr 2015 18:35:49 -0700
Subject: Fixed `htmlTag` in HTML reader.

Require that `<!` or `<?` be followed by nonspace.
This prevents `</ div>` from being parsed as a comment.

Closes #1820.
---
 src/Text/Pandoc/Readers/HTML.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Text/Pandoc/Readers/HTML.hs b/src/Text/Pandoc/Readers/HTML.hs
index 59f71589e..52358e51e 100644
--- a/src/Text/Pandoc/Readers/HTML.hs
+++ b/src/Text/Pandoc/Readers/HTML.hs
@@ -887,7 +887,7 @@ htmlTag :: Monad m
         => (Tag String -> Bool)
         -> ParserT [Char] st m (Tag String, String)
 htmlTag f = try $ do
-  lookAhead $ char '<' >> (oneOf "/!?" <|> letter)
+  lookAhead $ char '<' >> ((oneOf "/!?" >> nonspaceChar) <|> letter)
   (next : _) <- getInput >>= return . canonicalizeTags . parseTags
   guard $ f next
   -- advance the parser
-- 
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