((output
  (((f.ml (1 0) (1 2)) (paragraph (((f.ml (1 0) (1 2)) (code_span "")))))))
 (warnings
  ( "File \"f.ml\", line 1, characters 2-2:\
   \nEnd of text is not allowed in '{%...%}' (raw markup)."
    "File \"f.ml\", line 1, characters 0-2:\
   \n'{%...%}' (raw markup) needs a target language.\
   \nSuggestion: try '{%html:...%}'.")))
