include sig ... endval sexp_of_t : t ‑> Sexplib.Sexp.tval position : t ‑> Positions.posval message : t ‑> Base.stringval report : Caml.Format.formatter ‑> filename:Base.string ‑> t ‑> Base.unitReport an error in a style similar to OCaml, for instance:
File "blah", line 42, character 10: Error: s-expression parsing error; unterminated quoted string.