From 1435906f097fa8d5ad08728c3b95cd2992678230 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sun, 2 Oct 2016 22:09:20 +0200
Subject: MediaWiki writer:  transform filename with underscores in images.

`foo bar.jpg` becomes `foo_bar.jpg`. This was already done
for internal links, but it also needs to happen for images.

Closes #3052.
---
 src/Text/Pandoc/Readers/MediaWiki.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Text/Pandoc/Readers/MediaWiki.hs b/src/Text/Pandoc/Readers/MediaWiki.hs
index c625b8905..df8fea5a6 100644
--- a/src/Text/Pandoc/Readers/MediaWiki.hs
+++ b/src/Text/Pandoc/Readers/MediaWiki.hs
@@ -585,7 +585,7 @@ image :: MWParser Inlines
 image = try $ do
   sym "[["
   choice imageIdentifiers
-  fname <- many1 (noneOf "|]")
+  fname <- addUnderscores <$> many1 (noneOf "|]")
   _ <- many imageOption
   dims <- try (char '|' *> (sepBy (many digit) (char 'x')) <* string "px")
           <|> return []
-- 
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