diff options
Diffstat (limited to 'Pancake/Rendering.hs')
| -rw-r--r-- | Pancake/Rendering.hs | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/Pancake/Rendering.hs b/Pancake/Rendering.hs index a917104..55aabd6 100644 --- a/Pancake/Rendering.hs +++ b/Pancake/Rendering.hs @@ -484,9 +484,36 @@ renderBlock (P.Div attr b) = do i $ renderBlocks b renderBlock P.Null = pure () --- | Renders block elements with empy lines between them. +-- | Checks whether a block is a list (ordered-, bullet-, or +-- definition-). +isList :: P.Block -> Bool +isList P.OrderedList {} = True +isList P.BulletList {} = True +isList P.DefinitionList {} = True +isList _ = False + +-- | Determines whether a line should be skipped before a block. +skipBefore :: P.Block -> Bool +skipBefore P.Header {} = True +skipBefore P.Para {} = True +skipBefore (P.Div _ (b:_)) = skipBefore b +skipBefore _ = False + +-- | Determines whether a line should be skipped after a block. +skipAfter :: P.Block -> Bool +skipAfter P.Header {} = True +skipAfter P.Para {} = True +skipAfter (P.Div _ bs@(_:_)) = skipAfter $ last bs +skipAfter b = isList b + +-- | Renders block elements with empty lines between some of them. renderBlocks :: [P.Block] -> Renderer () -renderBlocks b = sequence_ (intersperse (storeLines [[]]) $ map renderBlock b) +renderBlocks [] = pure () +renderBlocks [b] = renderBlock b +renderBlocks (b1:bs@(b2:_)) = do + renderBlock b1 + when (skipAfter b1 || skipBefore b2) $ storeLines [[]] + renderBlocks bs -- | Renders a document. renderDoc :: Int |