Muse writer: indent lists inside <quote> with at least one space (#3795)

src/Text/Pandoc/Writers/Muse.hs

@@ -102,6 +102,13 @@ pandocToMuse (Pandoc meta blocks) = do
        Nothing  -> return main
        Just tpl -> renderTemplate' tpl context
 
+-- | Convert list of Pandoc block elements to Muse
+-- | without setting stTopLevel.
+flatBlockListToMuse :: PandocMonad m
+                => [Block]       -- ^ List of block elements
+                -> StateT WriterState m Doc
+flatBlockListToMuse blocks = cat <$> mapM blockToMuse blocks
+
 -- | Convert list of Pandoc block elements to Muse.
 blockListToMuse :: PandocMonad m
                 => [Block]       -- ^ List of block elements
@@ -111,11 +118,11 @@ blockListToMuse blocks = do
   modify $ \s -> s { stTopLevel = not $ stInsideBlock s
                    , stInsideBlock = True
                    }
-  contents <- mapM blockToMuse blocks
+  result <- flatBlockListToMuse blocks
   modify $ \s -> s { stTopLevel = stTopLevel oldState
                    , stInsideBlock = stInsideBlock oldState
                    }
-  return $ cat contents
+  return result
 
 -- | Convert Pandoc block element to Muse.
 blockToMuse :: PandocMonad m
@@ -141,10 +148,10 @@ blockToMuse (RawBlock (Format format) str) =
   return $ blankline $$ "<literal style=\"" <> text format <> "\">" $$
            text str $$ "</literal>" $$ blankline
 blockToMuse (BlockQuote blocks) = do
-  contents <- blockListToMuse blocks
+  contents <- flatBlockListToMuse blocks
   return $ blankline
         <> "<quote>"
-        $$ flush contents -- flush to drop blanklines
+        $$ nest 0 contents -- nest 0 to remove trailing blank lines
         $$ "</quote>"
         <> blankline
 blockToMuse (OrderedList (start, style, _) items) = do

test/Tests/Writers/Muse.hs

@@ -137,6 +137,17 @@ tests = [ testGroup "block elements"
                                                       , "                       second inner definition :: second inner description"
                                                       ]
               ]
+            -- Check that list is intended with one space even inside a quote
+            , "List inside block quote" =: blockQuote (orderedList [ plain $ text "first"
+                                                                   , plain $ text "second"
+                                                                   , plain $ text "third"
+                                                                   ])
+                                        =?> unlines [ "<quote>"
+                                                    , " 1. first"
+                                                    , " 2. second"
+                                                    , " 3. third"
+                                                    , "</quote>"
+                                                    ]
             ]
           , testGroup "headings"
             [ "normal heading" =:

test/writer.muse

@@ -65,8 +65,8 @@ sub status {
 
 A list:
 
-1. item one
-2. item two
+ 1. item one
+ 2. item two
 
 Nested block quotes:
 
@@ -281,7 +281,7 @@ Multiple blocks with italics:
                     </example>
 
                     <quote>
-orange block quote
+                    orange block quote
                     </quote>
 
 Multiple definitions, tight: