Small bug fix to last change, and count "'S" as well as "'s" as

possessive when followed by non-alphanumeric.


git-svn-id: https://pandoc.googlecode.com/svn/trunk@499 788f1e2b-df1e-0410-8736-df70ead52e1b

src/Text/Pandoc/Readers/Markdown.hs

@@ -778,7 +778,7 @@ singleQuoteStart = try $ do
   failIfInQuoteContext InSingleQuote
   char '\'' <|> char '\8216'
   notFollowedBy (oneOf ")!],.;:-? \t\n")
-  notFollowedBy (do{char 's'; satisfy (not . isAlphaNum)})
+  notFollowedBy (try (do{oneOf "sS"; satisfy (not . isAlphaNum)}))
 
 singleQuoteEnd = try $ do
   char '\'' <|> char '\8217'