Org reader: Fix emphasis rules for smart parsing

Smart quotes, ellipses, and dashes should behave like normal quotes,
single dashes, and dots with respect to text markup parsing.  The parser
state was not updated properly in all cases, which has been fixed.

Thanks to @conklech for reporting this issue.

This fixes jgm#2513.

src/Text/Pandoc/Readers/Org.hs

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 {- |
    Module      : Text.Pandoc.Readers.Org
-   Copyright   : Copyright (C) 2014 Albert Krewinkel
+   Copyright   : Copyright (C) 2014-2015 Albert Krewinkel
    License     : GNU GPL, version 2 or above
 
    Maintainer  : Albert Krewinkel <[email protected]>
@@ -1585,25 +1585,30 @@ smart :: OrgParser (F Inlines)
 smart = do
   getOption readerSmart >>= guard
   doubleQuoted <|> singleQuoted <|>
-    choice (map (return <$>) [orgApostrophe, dash, ellipses])
-  where orgApostrophe =
+    choice (map (return <$>) [orgApostrophe, orgDash, orgEllipses])
+  where
+    orgDash = dash <* updatePositions '-'
+    orgEllipses = ellipses <* updatePositions '.'
+    orgApostrophe =
           (char '\'' <|> char '\8217') <* updateLastPreCharPos
                                        <* updateLastForbiddenCharPos
                                        *> return (B.str "\x2019")
 
 singleQuoted :: OrgParser (F Inlines)
 singleQuoted = try $ do
   singleQuoteStart
+  updatePositions '\''
   withQuoteContext InSingleQuote $
     fmap B.singleQuoted . trimInlinesF . mconcat <$>
-      many1Till inline singleQuoteEnd
+      many1Till inline (singleQuoteEnd <* updatePositions '\'')
 
 -- doubleQuoted will handle regular double-quoted sections, as well
 -- as dialogues with an open double-quote without a close double-quote
 -- in the same paragraph.
 doubleQuoted :: OrgParser (F Inlines)
 doubleQuoted = try $ do
   doubleQuoteStart
+  updatePositions '"'
   contents <- mconcat <$> many (try $ notFollowedBy doubleQuoteEnd >> inline)
   (withQuoteContext InDoubleQuote $ (doubleQuoteEnd <* updateLastForbiddenCharPos) >> return
        (fmap B.doubleQuoted . trimInlinesF $ contents))

tests/Tests/Readers/Org.hs

@@ -1246,6 +1246,7 @@ tests =
                         ]
           in codeBlockWith ( "", classes, params) "code body\n"
       ]
+
     , testGroup "Smart punctuation"
       [ test orgSmart "quote before ellipses"
         ("'...hi'"
@@ -1266,5 +1267,13 @@ tests =
       , test orgSmart "Dashes are allowed at the borders of emphasis'"
         ("/foo---/" =?>
          para (emph "foo—"))
+
+      , test orgSmart "Single quotes can be followed by emphasized text"
+        ("Singles on the '/meat market/'" =?>
+         para ("Singles on the " <> (singleQuoted $ emph "meat market")))
+
+      , test orgSmart "Double quotes can be followed by emphasized text"
+        ("Double income, no kids: \"/DINK/\"" =?>
+         para ("Double income, no kids: " <> (doubleQuoted $ emph "DINK")))
       ]
   ]