sig
type error =
Parsing_error of string
| Invalid_operands of string
| Invalid_function_parameters of string
| Unknown_function of string
| Invalid_result_kind
| Evaluation_error of string
| Invalid_path of string
val string_of_error : Combine.error -> string
exception Exception of Combine.error
val eval : string -> (string, int array) Stdlib.Hashtbl.t
end