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(** All the types used in the spreadsheet. *)
exception Error
type cell = (int * int) * (bool * bool)
type ident = UTF8.t
type types =
| Num of Num.num * (UTF8.t option) (** A number *)
| Str of UTF8.t (** A string *)
| Date of Num.num (** A date in julian day *)
| Undefined (** The content is not defined *)
| Bool of bool (** A boolean *)
type refs =
| Cell of cell (** A cell *)
| Range of cell * cell (** An area of cells *)
type expression =
| Value of types (** A direct value *)
| Ref of refs (** A reference to another cell *)
| Call of ident * expression list (** A call to a function *)
| Expression of expression (** An expression *)
(** Result from a computation *)
type result =
| Result of types
| Error of exn
module Type : sig
val (=) : types -> types -> bool
val show: UTF8.Buffer.buffer -> types -> unit
end
module Refs : sig
type 'a range =
| Single of 'a
| Array1 of 'a list
| Array2 of 'a list list
val collect: refs -> (int * int) range
val map: ('a -> 'b) -> 'a range -> 'b range
val shift: (int * int) -> refs -> refs
end
val show_expr: UTF8.Buffer.buffer -> expression -> unit
module Result : sig
val (=) : result -> result -> bool
val show: result -> UTF8.t
end
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