manfilter.lua: remove extra indent in table cells with code blocks.

man/manfilter.lua

@@ -11,6 +11,30 @@ function Header(el)
     end
 end
 
+-- unindent table content
+function Table(el)
+  for _,body in ipairs(el.bodies) do
+    handleTableBody(body)
+  end
+  return el
+end
+
+local function handleCell(el)
+  if #el.contents > 0 and el.contents[1].t == "CodeBlock" then
+    table.insert(el.contents, 1, pandoc.RawBlock("man", ".RS -14n"))
+    table.insert(el.contents, pandoc.RawBlock("man", ".RE"))
+  end
+end
+
+function handleTableBody(el)
+  for _,row in ipairs(el.body) do
+    for _,cell in ipairs(row.cells) do
+      handleCell(cell)
+    end
+  end
+end
+
+
 -- replace links with link text
 function Link(el)
     return el.content