Muse reader: trim whitespace before parsing grid table cells

src/Text/Pandoc/Readers/Muse.hs

@@ -56,7 +56,7 @@ import Text.Pandoc.Error (PandocError (PandocParsecError))
 import Text.Pandoc.Logging
 import Text.Pandoc.Options
 import Text.Pandoc.Parsing hiding (F)
-import Text.Pandoc.Shared (crFilter, underlineSpan)
+import Text.Pandoc.Shared (crFilter, trimr, underlineSpan)
 
 -- | Read Muse from an input string and return a Pandoc document.
 readMuse :: PandocMonad m
@@ -692,7 +692,7 @@ museGridTableRow :: PandocMonad m
                  -> MuseParser m (F [Blocks])
 museGridTableRow indent indices = try $ do
   lns <- many1 $ try (indentWith indent *> museGridTableRawLine indices)
-  let cols = map unlines $ transpose lns
+  let cols = map (unlines . map trimr) $ transpose lns
   indentWith indent *> museGridTableHeader
   sequence <$> mapM (parseFromString parseBlocks) cols
 

test/Tests/Readers/Muse.hs

@@ -1019,6 +1019,17 @@ tests =
                        [[table mempty [(AlignDefault, 0.0)]
                                       []
                                       [[para "foo"]]]]
+        , "Grid table with example" =:
+          T.unlines
+            [ "+------------+"
+            , "| <example>  |"
+            , "| foo        |"
+            , "| </example> |"
+            , "+------------+"
+            ] =?>
+          table mempty [(AlignDefault, 0.0)]
+                       []
+                       [[codeBlock "foo"]]
         ]
     , testGroup "Lists"
       [ "Bullet list" =: