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|
(** All the types used in the spreadsheet. *)
(** This module describe the most basic type use in the spreadsheet : every content is,
- either a ['a t]
- either an expression which result to one ['a t]
*)
module Type : sig
type 'a t
(** Create a new number *)
val number: DataType.Num.t -> DataType.Num.t t
(** Create a new string *)
val string: DataType.String.t -> DataType.String.t t
(** Create a new boolean *)
val boolean: DataType.Bool.t -> DataType.Bool.t t
(** Create a new date *)
val date: DataType.Num.t -> DataType.Num.t t
val (=) : 'a t -> 'b t -> bool
(** Evaluate a type and get the result *)
module Eval(T:Sym_type.SYM_TYPE): sig
val eval: 'a t -> 'a T.obs
end
end
(** A reference to another cell.
The reference can be a single cell (ie : A$1) or a range.
*)
module Refs : sig
type t
val cell : Cell.t -> t
val range : Cell.t -> Cell.t -> t
val shift: (int * int) -> t -> t
(** Evaluate a reference and get the result *)
module Eval(R:Sym_ref.SYM_REF): sig
val eval: t -> 'a R.obs
end
end
module Expr : sig
type ident = UTF8.t
(** This is the cell content *)
type t
(** Declare a direct value *)
val value: 'a Type.t -> t
(** Declare a reference to another cell *)
val ref: Refs.t -> t
(** Declare a call to a 0 arg function *)
val call0: ident -> t
(** Declare a call to a 1 arg function *)
val call1 : ident -> t -> t
(** Declare a call to a 2 arg function *)
val call2 : ident -> t -> t -> t
(** Declare a call to a 3 arg function *)
val call3 : ident -> t -> t -> t -> t
(** Declare a call to a function *)
val callN : ident -> t list -> t
(** An expression *)
val expression : t -> t
val shift_exp: (int * int) -> t -> t
module Eval(E:Sym_expr.SYM_EXPR): sig
val eval: t -> E.t -> E.obs
end
end
module DataFormat : sig
type 'a t =
| Date: DataType.Num.t t (* A date in julian day *)
| Number: DataType.Num.t t (* Number *)
| String: DataType.String.t t (* String *)
| Bool: DataType.Bool.t t (* Boolean *)
type formats = F : 'a t -> formats [@@unboxed]
val default_value_for: 'a t -> 'a
type ('a, 'b) equality = Eq : ('a, 'a) equality
val compare_format: 'a t -> 'b t -> ('a, 'b) equality
val priority: 'a t -> int
end
module ReturnType : sig
(** Private type for an internal representation of return format *)
type 'a t
(** Numeric (any format) *)
val f_num: DataType.Num.t t
(** Date *)
val f_date: DataType.Num.t t
(** Number *)
val f_number: DataType.Num.t t
(** Boolean result *)
val f_bool: DataType.Bool.t t
(** String *)
val f_string: DataType.String.t t
val guess_format_result: 'a t -> (unit -> DataFormat.formats list) -> 'a DataFormat.t
end
module Result : sig
(** Result from a computation *)
type t =
| Ok : 'a Type.t -> t
| Error : exn -> t
val (=) : t -> t -> bool
val show: t -> UTF8.t
end
exception Error
|
