Moved special handling of punctuation in suffix out of markdown reader.

This allows different writers to handle punctuation in the suffix
differently.

src/Text/Pandoc/Biblio.hs

@@ -31,7 +31,7 @@ module Text.Pandoc.Biblio ( processBiblio ) where
 
 import Data.List
 import Data.Unique
-import Data.Char ( isDigit )
+import Data.Char ( isDigit, isPunctuation )
 import qualified Data.Map as M
 import Text.CSL hiding ( Cite(..), Citation(..) )
 import qualified Text.CSL as CSL ( Cite(..) )
@@ -164,9 +164,13 @@ toCslCite c
                       AuthorInText   -> (True, False)
                       SuppressAuthor -> (False,True )
                       NormalCitation -> (False,False)
+          s'      = case s of
+                         []                                -> []
+                         (Str (y:_) : _) | isPunctuation y -> s
+                         _                                 -> Str "," : Space : s
       in   emptyCite { CSL.citeId         = citationId c
                      , CSL.citePrefix     = PandocText $ citationPrefix c
-                     , CSL.citeSuffix     = PandocText $ s
+                     , CSL.citeSuffix     = PandocText $ s'
                      , CSL.citeLabel      = la
                      , CSL.citeLocator    = lo
                      , CSL.citeNoteNumber = show $ citationNoteNum c

src/Text/Pandoc/Readers/Markdown.hs

@@ -32,7 +32,7 @@ module Text.Pandoc.Readers.Markdown ( readMarkdown ) where
 import Data.List ( transpose, isSuffixOf, sortBy, findIndex, intercalate )
 import qualified Data.Map as M
 import Data.Ord ( comparing )
-import Data.Char ( isAlphaNum, isPunctuation )
+import Data.Char ( isAlphaNum )
 import Data.Maybe
 import Text.Pandoc.Definition
 import Text.Pandoc.Shared
@@ -1291,12 +1291,7 @@ citeKey = try $ do
 suffix :: GenParser Char ParserState [Inline]
 suffix = try $ do
   spnl
-  res <- many $ notFollowedBy (oneOf ";]") >> inline
-  return $ case res of
-            []       -> []
-            (Str (y:_) : _) | isPunctuation y
-                     -> res
-            _        -> Str "," : Space : res
+  liftM normalizeSpaces $ many $ notFollowedBy (oneOf ";]") >> inline
 
 prefix :: GenParser Char ParserState [Inline]
 prefix = liftM normalizeSpaces $