Org reader: support smart quotes export option

Reading of smart quotes can be toggled using the `'` option.

src/Text/Pandoc/Readers/Org.hs

@@ -29,7 +29,7 @@ module Text.Pandoc.Readers.Org ( readOrg ) where
 
 import           Text.Pandoc.Readers.Org.Blocks ( blockList, meta )
 import           Text.Pandoc.Readers.Org.Parsing ( OrgParser, readWithM )
-import           Text.Pandoc.Readers.Org.ParserState ( OrgParserState (..) )
+import           Text.Pandoc.Readers.Org.ParserState ( optionsToParserState )
 
 import           Text.Pandoc.Definition
 import           Text.Pandoc.Error
@@ -42,7 +42,8 @@ import           Control.Monad.Reader ( runReader )
 readOrg :: ReaderOptions -- ^ Reader options
         -> String        -- ^ String to parse (assuming @'\n'@ line endings)
         -> Either PandocError Pandoc
-readOrg opts s = flip runReader def $ readWithM parseOrg def{ orgStateOptions = opts } (s ++ "\n\n")
+readOrg opts s = flip runReader def $
+                 readWithM parseOrg (optionsToParserState opts) (s ++ "\n\n")
 
 --
 -- Parser

src/Text/Pandoc/Readers/Org/Blocks.hs

@@ -500,7 +500,7 @@ addLinkFormat key formatter = updateState $ \s ->
 exportSetting :: OrgParser ()
 exportSetting = choice
   [ booleanSetting "^" setExportSubSuperscripts
-  , ignoredSetting "'"
+  , booleanSetting "'" setExportSmartQuotes
   , ignoredSetting "*"
   , ignoredSetting "-"
   , ignoredSetting ":"

src/Text/Pandoc/Readers/Org/Inlines.hs

@@ -730,6 +730,7 @@ smart = do
 
 singleQuoted :: OrgParser (F Inlines)
 singleQuoted = try $ do
+  guard . exportSmartQuotes . orgStateExportSettings =<< getState
   singleQuoteStart
   updatePositions '\''
   withQuoteContext InSingleQuote $
@@ -741,6 +742,7 @@ singleQuoted = try $ do
 -- in the same paragraph.
 doubleQuoted :: OrgParser (F Inlines)
 doubleQuoted = try $ do
+  guard . exportSmartQuotes . orgStateExportSettings =<< getState
   doubleQuoteStart
   updatePositions '"'
   contents <- mconcat <$> many (try $ notFollowedBy doubleQuoteEnd >> inline)

src/Text/Pandoc/Readers/Org/ParserState.hs

@@ -42,9 +42,11 @@ module Text.Pandoc.Readers.Org.ParserState
   , returnF
   , ExportSettingSetter
   , ExportSettings (..)
-  , setExportSubSuperscripts
   , setExportDrawers
+  , setExportSmartQuotes
+  , setExportSubSuperscripts
   , modifyExportSettings
+  , optionsToParserState
   ) where
 
 import           Control.Monad (liftM, liftM2)
@@ -77,11 +79,12 @@ type OrgLinkFormatters = M.Map String (String -> String)
 -- | Export settings <http://orgmode.org/manual/Export-settings.html>
 -- These settings can be changed via OPTIONS statements.
 data ExportSettings = ExportSettings
-  { exportSubSuperscripts :: Bool -- ^ TeX-like syntax for sub- and superscripts
-  , exportDrawers         :: Either [String] [String]
+  { exportDrawers         :: Either [String] [String]
   -- ^ Specify drawer names which should be exported.  @Left@ names are
   -- explicitly excluded from the resulting output while @Right@ means that
   -- only the listed drawer names should be included.
+  , exportSmartQuotes     :: Bool -- ^ Parse quotes, ellipses, apostrophs smartly
+  , exportSubSuperscripts :: Bool -- ^ TeX-like syntax for sub- and superscripts
   }
 
 -- | Org-mode parser state
@@ -152,25 +155,35 @@ defaultOrgParserState = OrgParserState
 
 defaultExportSettings :: ExportSettings
 defaultExportSettings = ExportSettings
-  { exportSubSuperscripts = True
-  , exportDrawers = Left ["LOGBOOK"]
+  { exportDrawers = Left ["LOGBOOK"]
+  , exportSmartQuotes = True
+  , exportSubSuperscripts = True
   }
 
+optionsToParserState :: ReaderOptions -> OrgParserState
+optionsToParserState opts =
+  def { orgStateOptions = opts }
+
 
 --
 -- Setter for exporting options
 --
 type ExportSettingSetter a = a -> ExportSettings -> ExportSettings
 
+-- | Set export options for drawers.  See the @exportDrawers@ in ADT
+-- @ExportSettings@ for details.
+setExportDrawers :: ExportSettingSetter (Either [String] [String])
+setExportDrawers val es = es { exportDrawers = val }
+
 -- | Set export options for sub/superscript parsing.  The short syntax will
 -- not be parsed if this is set set to @False@.
 setExportSubSuperscripts :: ExportSettingSetter Bool
 setExportSubSuperscripts val es = es { exportSubSuperscripts = val }
 
--- | Set export options for drawers.  See the @exportDrawers@ in ADT
--- @ExportSettings@ for details.
-setExportDrawers :: ExportSettingSetter (Either [String] [String])
-setExportDrawers val es = es { exportDrawers = val }
+-- | Set export options for sub/superscript parsing.  The short syntax will
+-- not be parsed if this is set set to @False@.
+setExportSmartQuotes :: ExportSettingSetter Bool
+setExportSmartQuotes val es = es { exportSmartQuotes = val }
 
 -- | Modify a parser state
 modifyExportSettings :: ExportSettingSetter a -> a -> OrgParserState -> OrgParserState