let start, stop = HExtlib.loc_of_floc floc in
let start_bytes = Glib.Utf8.offset_to_pos s ~pos:0 ~off:start in
let stop_bytes = Glib.Utf8.offset_to_pos s ~pos:0 ~off:stop in
let start, stop = HExtlib.loc_of_floc floc in
let start_bytes = Glib.Utf8.offset_to_pos s ~pos:0 ~off:start in
let stop_bytes = Glib.Utf8.offset_to_pos s ~pos:0 ~off:stop in