DocBook reader: be sensitive to spacing="compact" in lists.

When spacing="compact" is set, Para elements are turned
into Plain, so we get a "tight" list.

Closes #7799.

src/Text/Pandoc/Readers/DocBook.hs

@@ -843,7 +843,7 @@ parseBlock (Elem e) =
         "answer" -> addToStart (strong (str "A:") <> str " ") <$> getBlocks e
         "abstract" -> blockQuote <$> getBlocks e
         "calloutlist" -> bulletList <$> callouts
-        "itemizedlist" -> bulletList <$> listitems
+        "itemizedlist" -> bulletList . handleCompact <$> listitems
         "orderedlist" -> do
           let listStyle = case attrValue "numeration" e of
                                "arabic"     -> Decimal
@@ -855,7 +855,7 @@ parseBlock (Elem e) =
           let start = fromMaybe 1 $
                       filterElement (named "listitem") e
                        >>= safeRead . attrValue "override"
-          orderedListWith (start,listStyle,DefaultDelim)
+          orderedListWith (start,listStyle,DefaultDelim) . handleCompact
             <$> listitems
         "variablelist" -> definitionList <$> deflistitems
         "procedure" -> bulletList <$> steps
@@ -903,6 +903,14 @@ parseBlock (Elem e) =
            lift $ report $ IgnoredElement name
            return mempty
 
+         compactSpacing = case attrValue "spacing" e of
+                            "compact" -> True
+                            _         -> False
+
+         handleCompact = if compactSpacing
+                            then map (fmap paraToPlain)
+                            else id
+
          codeBlockWithLang = do
            let classes' = case attrValue "language" e of
                                 "" -> []
@@ -1320,3 +1328,8 @@ showVerbatimCData c = showContent c
 -- | Set the prefix of a name to 'Nothing'
 removePrefix :: QName -> QName
 removePrefix elname = elname { qPrefix = Nothing }
+
+paraToPlain :: Block -> Block
+paraToPlain (Para ils) = Plain ils
+paraToPlain x = x
+

test/docbook-reader.docbook

@@ -194,9 +194,9 @@ These should not be escaped:  \$ \\ \> \[ \{
       </listitem>
     </itemizedlist>
     <para>
-      Pluses loose:
+      Asterisks tight:
     </para>
-    <itemizedlist>
+    <itemizedlist spacing="compact">
       <listitem>
         <para>
           Plus 1
@@ -213,26 +213,6 @@ These should not be escaped:  \$ \\ \&gt; \[ \{
         </para>
       </listitem>
     </itemizedlist>
-    <para>
-      Minuses loose:
-    </para>
-    <itemizedlist>
-      <listitem>
-        <para>
-          Minus 1
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          Minus 2
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          Minus 3
-        </para>
-      </listitem>
-    </itemizedlist>
   </sect2>
   <sect2 id="ordered">
     <title>Ordered</title>
@@ -254,9 +234,9 @@ These should not be escaped:  \$ \\ \&gt; \[ \{
       </listitem>
     </orderedlist>
     <para>
-      and using spaces:
+      and tight:
     </para>
-    <orderedlist numeration="arabic">
+    <orderedlist spacing="compact" numeration="arabic">
       <listitem>
         <para>
           One

test/docbook-reader.native

@@ -336,17 +336,11 @@ Pandoc
       , [ Para [ Str "asterisk" , Space , Str "2" ] ]
       , [ Para [ Str "asterisk" , Space , Str "3" ] ]
       ]
-  , Para [ Str "Pluses" , Space , Str "loose:" ]
+  , Para [ Str "Asterisks" , Space , Str "tight:" ]
   , BulletList
-      [ [ Para [ Str "Plus" , Space , Str "1" ] ]
-      , [ Para [ Str "Plus" , Space , Str "2" ] ]
-      , [ Para [ Str "Plus" , Space , Str "3" ] ]
-      ]
-  , Para [ Str "Minuses" , Space , Str "loose:" ]
-  , BulletList
-      [ [ Para [ Str "Minus" , Space , Str "1" ] ]
-      , [ Para [ Str "Minus" , Space , Str "2" ] ]
-      , [ Para [ Str "Minus" , Space , Str "3" ] ]
+      [ [ Plain [ Str "Plus" , Space , Str "1" ] ]
+      , [ Plain [ Str "Plus" , Space , Str "2" ] ]
+      , [ Plain [ Str "Plus" , Space , Str "3" ] ]
       ]
   , Header 2 ( "ordered" , [] , [] ) [ Str "Ordered" ]
   , OrderedList
@@ -355,13 +349,12 @@ Pandoc
       , [ Para [ Str "Second" ] ]
       , [ Para [ Str "Third" ] ]
       ]
-  , Para
-      [ Str "and" , Space , Str "using" , Space , Str "spaces:" ]
+  , Para [ Str "and" , Space , Str "tight:" ]
   , OrderedList
       ( 1 , Decimal , DefaultDelim )
-      [ [ Para [ Str "One" ] ]
-      , [ Para [ Str "Two" ] ]
-      , [ Para [ Str "Three" ] ]
+      [ [ Plain [ Str "One" ] ]
+      , [ Plain [ Str "Two" ] ]
+      , [ Plain [ Str "Three" ] ]
       ]
   , Para [ Str "Multiple" , Space , Str "paragraphs:" ]
   , OrderedList