Smart quote parsing in Markdown reader:

treat ' followed by ll, re, ve, then a
non-letter, as a contraction.  (e.g.
I've, you're, he'll)


git-svn-id: https://pandoc.googlecode.com/svn/trunk@559 788f1e2b-df1e-0410-8736-df70ead52e1b

src/Text/Pandoc/Readers/Markdown.hs

@@ -32,7 +32,7 @@ module Text.Pandoc.Readers.Markdown (
                                     ) where
 
 import Data.List ( findIndex, sortBy, transpose, isSuffixOf, intersect )
-import Data.Char ( isAlphaNum )
+import Data.Char ( isAlphaNum, toUpper )
 import Text.ParserCombinators.Pandoc
 import Text.Pandoc.Definition
 import Text.Pandoc.Readers.LaTeX ( rawLaTeXInline, rawLaTeXEnvironment )
@@ -778,7 +778,9 @@ singleQuoteStart = try $ do
                      char '\''  
                      notFollowedBy (oneOf ")!],.;:-? \t\n")
                      notFollowedBy (try (do  -- possessive or contraction
-                                           oneOf "sStT"
+                                           let endings = ["s","t","ve","ll","re"]
+                                           oneOfStrings (endings ++ 
+                                             map (map toUpper) endings) 
                                            satisfy (not . isAlphaNum)))
                      return '\''