Fixed bug with intraword emphasis.

Closes #1066.

src/Text/Pandoc/Readers/Markdown.hs

@@ -1455,6 +1455,7 @@ enclosure c = do
 -- Parse inlines til you hit one c or a sequence of two cs.
 -- If one c, emit emph and then parse two.
 -- If two cs, emit strong and then parse one.
+-- Otherwise, emit ccc then the results.
 three :: Char -> MarkdownParser (F Inlines)
 three c = do
   contents <- mconcat <$> many (notFollowedBy (char c) >> inline)
@@ -1479,7 +1480,7 @@ one c prefix' = do
   contents <- mconcat <$> many (  (notFollowedBy (char c) >> inline)
                            <|> try (string [c,c] >>
                                     notFollowedBy (char c) >>
-                                    two c prefix') )
+                                    two c mempty) )
   (char c >> return (B.emph <$> (prefix' <> contents)))
     <|> return (return (B.str [c]) <> (prefix' <> contents))
 

tests/Tests/Readers/Markdown.hs

@@ -136,6 +136,11 @@ tests = [ testGroup "inline code"
             "`*` {.haskell .special x=\"7\"}"
             =?> para (codeWith ("",["haskell","special"],[("x","7")]) "*")
           ]
+        , testGroup "emph and strong"
+          [ "two strongs in emph" =:
+             "***a**b **c**d*" =?> para (emph (strong (str "a") <> str "b" <> space
+                                         <> strong (str "c") <> str "d"))
+          ]
         , testGroup "raw LaTeX"
           [ "in URL" =:
             "\\begin\n" =?> para (text "\\begin")