FB2 writer: write blocks outside of <p> in definitions

src/Text/Pandoc/Writers/FB2.hs

@@ -362,17 +362,9 @@ blockToXml (DefinitionList defs) =
     cMapM mkdef defs
     where
       mkdef (term, bss) = do
-          def' <- cMapM (cMapM blockToXml . sep . paraToPlain . map indent) bss
+          items <- cMapM (cMapM blockToXml . plainToPara . indentBlocks (replicate 4 ' ')) bss
           t <- wrap "strong" term
-          return [ el "p" t, el "p" def' ]
-      sep blocks =
-          if all needsBreak blocks then
-              blocks ++ [Plain [LineBreak]]
-          else
-              blocks
-      needsBreak (Para _)    = False
-      needsBreak (Plain ins) = LineBreak `notElem` ins
-      needsBreak _           = True
+          return (el "p" t : items)
 blockToXml h@Header{} = do
   -- should not occur after hierarchicalize, except inside lists/blockquotes
   report $ BlockNotRendered h
@@ -403,14 +395,6 @@ blockToXml (Table caption aligns _ headers rows) = do
       align_str AlignDefault = "left"
 blockToXml Null = return []
 
--- Replace paragraphs with plain text and line break.
--- Necessary to simulate multi-paragraph lists in FB2.
-paraToPlain :: [Block] -> [Block]
-paraToPlain [] = []
-paraToPlain (Para inlines : rest) =
-    Plain inlines : Plain [LineBreak] : paraToPlain rest
-paraToPlain (p:rest) = p : paraToPlain rest
-
 -- Replace plain text with paragraphs and add line break after paragraphs.
 -- It is used to convert plain text from tight list items to paragraphs.
 plainToPara :: [Block] -> [Block]

test/writer.fb2

@@ -332,64 +332,61 @@
 <p>
 <strong>apple</strong>
 </p>
-<p>    red fruit<empty-line />
-</p>
+<p>    red fruit</p>
 <p>
 <strong>orange</strong>
 </p>
-<p>    orange fruit<empty-line />
-</p>
+<p>    orange fruit</p>
 <p>
 <strong>banana</strong>
 </p>
-<p>    yellow fruit<empty-line />
-</p>
+<p>    yellow fruit</p>
 <p>Tight using tabs:</p>
 <p>
 <strong>apple</strong>
 </p>
-<p>    red fruit<empty-line />
-</p>
+<p>    red fruit</p>
 <p>
 <strong>orange</strong>
 </p>
-<p>    orange fruit<empty-line />
-</p>
+<p>    orange fruit</p>
 <p>
 <strong>banana</strong>
 </p>
-<p>    yellow fruit<empty-line />
-</p>
+<p>    yellow fruit</p>
 <p>Loose:</p>
 <p>
 <strong>apple</strong>
 </p>
-<p>    red fruit<empty-line />
-</p>
+<p>    red fruit</p>
+<empty-line />
 <p>
 <strong>orange</strong>
 </p>
-<p>    orange fruit<empty-line />
-</p>
+<p>    orange fruit</p>
+<empty-line />
 <p>
 <strong>banana</strong>
 </p>
-<p>    yellow fruit<empty-line />
-</p>
+<p>    yellow fruit</p>
+<empty-line />
 <p>Multiple blocks with italics:</p>
 <p>
 <strong>
 <emphasis>apple</emphasis>
 </strong>
 </p>
-<p>    red fruit<empty-line />    contains seeds, crisp, pleasant to taste<empty-line />
-</p>
+<p>    red fruit</p>
+<empty-line />
+<p>    contains seeds, crisp, pleasant to taste</p>
+<empty-line />
 <p>
 <strong>
 <emphasis>orange</emphasis>
 </strong>
 </p>
-<p>    orange fruit<empty-line />
+<p>    orange fruit</p>
+<empty-line />
 <empty-line />
 <p>
 <code>    { orange code block }</code>
@@ -398,42 +395,47 @@
 <cite>
 <p>    orange block quote</p>
 </cite>
-</p>
 <p>Multiple definitions, tight:</p>
 <p>
 <strong>apple</strong>
 </p>
-<p>    red fruit<empty-line />    computer<empty-line />
-</p>
+<p>    red fruit</p>
+<p>    computer</p>
 <p>
 <strong>orange</strong>
 </p>
-<p>    orange fruit<empty-line />    bank<empty-line />
-</p>
+<p>    orange fruit</p>
+<p>    bank</p>
 <p>Multiple definitions, loose:</p>
 <p>
 <strong>apple</strong>
 </p>
-<p>    red fruit<empty-line />    computer<empty-line />
-</p>
+<p>    red fruit</p>
+<empty-line />
+<p>    computer</p>
+<empty-line />
 <p>
 <strong>orange</strong>
 </p>
-<p>    orange fruit<empty-line />    bank<empty-line />
-</p>
+<p>    orange fruit</p>
+<empty-line />
+<p>    bank</p>
+<empty-line />
 <p>Blank line after term, indented marker, alternate markers:</p>
 <p>
 <strong>apple</strong>
 </p>
-<p>    red fruit<empty-line />    computer<empty-line />
-</p>
+<p>    red fruit</p>
+<empty-line />
+<p>    computer</p>
+<empty-line />
 <p>
 <strong>orange</strong>
 </p>
-<p>    orange fruit<empty-line />
+<p>    orange fruit</p>
+<empty-line />
 <p>1. sublist</p>
 <p>2. sublist</p>
-</p>
 </section>
 <section>
 <title>