% pandoc -t native --columns=72
  ----- ------------------------------------------------
    foo bar

    foo this is a long
        line of text
  ----- ------------------------------------------------
^D
[Table [] [AlignRight,AlignLeft] [8.333333333333333e-2,0.6666666666666666]
 [[]
 ,[]]
 [[[Plain [Str "foo"]]
  ,[Plain [Str "bar"]]]
 ,[[Plain [Str "foo"]]
  ,[Plain [Str "this",Space,Str "is",Space,Str "a",Space,Str "long",SoftBreak,Str "line",Space,Str "of",Space,Str "text"]]]]]