Org reader: update emphasis border chars

The org reader was updated to match current org-mode behavior: the set
of characters which are acceptable to occur as the first or last
character in an org emphasis have been changed and now allows all
non-whitespace chars at the inner border of emphasized text (see
`org-emphasis-regexp-components`).

Fixes: #3933

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

@@ -735,15 +735,15 @@ many1TillNOrLessNewlines n p end = try $
 
 -- | Chars allowed to occur before emphasis (spaces and newlines are ok, too)
 emphasisPreChars :: [Char]
-emphasisPreChars = "\t \"'({"
+emphasisPreChars = "-\t ('\"{"
 
 -- | Chars allowed at after emphasis
 emphasisPostChars :: [Char]
-emphasisPostChars = "\t\n !\"'),-.:;?\\}["
+emphasisPostChars = "-\t\n .,:!?;'\")}["
 
 -- | Chars not allowed at the (inner) border of emphasis
 emphasisForbiddenBorderChars :: [Char]
-emphasisForbiddenBorderChars = "\t\n\r \"',"
+emphasisForbiddenBorderChars = "\t\n\r "
 
 -- | The maximum number of newlines within
 emphasisAllowedNewlines :: Int

test/Tests/Readers/Org.hs

@@ -131,18 +131,18 @@ tests =
           para (spcSep [ emph $ "t/&" <> space <> "a"
                        , "/"
                        , "./r/"
-                       , "(" <> (strong "l") <> ")"
-                       , (emph "e") <> "!"
-                       , (emph "b") <> "."
+                       , "(" <> strong "l" <> ")"
+                       , emph "e" <> "!"
+                       , emph "b" <> "."
                        ])
 
-      , "Quotes are forbidden border chars" =:
-          "/'nope/ *nope\"*" =?>
-          para ("/'nope/" <> space <> "*nope\"*")
+      , "Quotes are allowed border chars" =:
+          "/'yep/ *sure\"*" =?>
+          para (emph "'yep" <> space <> strong "sure\"")
 
-      , "Commata are forbidden border chars" =:
-          "/nada,/" =?>
-          para "/nada,/"
+      , "Spaces are forbidden border chars" =:
+          "/nada /" =?>
+          para "/nada /"
 
       , "Markup should work properly after a blank line" =:
         T.unlines ["foo", "", "/bar/"] =?>