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(*
This file is part of licht.
licht is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
licht is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with licht. If not, see <http://www.gnu.org/licenses/>.
*)
module D = DataType
module T = Tools
type _ typ =
| Unit : unit typ
| Bool : D.Bool.t typ
| Num : D.Num.t typ
| String : UTF8.t typ
| List : 'a typ -> 'a list typ
let t_unit = Unit
let t_bool : DataType.Bool.t typ = Bool
let t_int : DataType.Num.t typ = Num
let t_string : UTF8.t typ = String
let t_list (t : 'a typ) : 'a list typ = List t
let typ_of_format : type a. a ScTypes.DataFormat.t -> a typ = function
| ScTypes.DataFormat.Date -> Num
| ScTypes.DataFormat.Number -> Num
| ScTypes.DataFormat.String -> String
| ScTypes.DataFormat.Bool -> Bool
let rec repr : type a. Format.formatter -> a typ -> unit =
fun printer typ ->
match typ with
| Unit -> Format.fprintf printer "Unit"
| Bool -> Format.fprintf printer "Bool"
| Num -> Format.fprintf printer "Num"
| String -> Format.fprintf printer "String"
| List t -> Format.fprintf printer "List[%a]" (repr [@tailcall]) t
module C = Catalog.Make (struct
let repr = repr
let rec compare_typ : type a b. a typ -> b typ -> (a, b) T.cmp =
fun a b ->
match (a, b) with
| Unit, Unit -> T.Eq
| Bool, Bool -> T.Eq
| Num, Num -> T.Eq
| String, String -> T.Eq
| List l1, List l2 -> (
match compare_typ l1 l2 with
| T.Lt -> T.Lt
| T.Eq -> T.Eq
| T.Gt -> T.Gt)
| x, y -> if T.Ex x > T.Ex y then T.Gt else T.Lt
type 'a t = 'a typ
type 'a returnType = 'a ScTypes.ReturnType.t
end)
let f_num = ScTypes.ReturnType.f_num
let f_date = ScTypes.ReturnType.f_date
let f_number = ScTypes.ReturnType.f_number
let f_string = ScTypes.ReturnType.f_string
let f_bool = ScTypes.ReturnType.f_bool
module Make_Compare (Comp : D.COMPARABLE) = struct
let register t catalog =
catalog
|> C.register2 "=" (t, t) f_bool Comp.eq
|> C.register2 "<>" (t, t) f_bool Comp.neq
|> C.register2 ">" (t, t) f_bool Comp.gt
|> C.register2 ">=" (t, t) f_bool Comp.ge
|> C.register2 "<" (t, t) f_bool Comp.lt
|> C.register2 "<=" (t, t) f_bool Comp.le
end
let built_in catalog =
let module CompareNum = Make_Compare (D.Num) in
let module CompareString = Make_Compare (D.String) in
let module CompareBool = Make_Compare (D.Bool) in
(* Helper for list functions : reduce over a list of elements *)
let reduce name typ res f c =
C.register1 name (t_list typ) res
(fun x -> List.fold_left f (List.hd x) x)
c
|> C.register1 name
(t_list (t_list typ))
res
(fun x -> List.fold_left (List.fold_left f) (List.hd (List.hd x)) x)
in
(* Helper for list functions : fold over a list of elements *)
let fold name t_in t_out f init c =
C.register1 name (t_list t_in) t_out (fun x -> List.fold_left f init x) c
|> C.register1 name
(t_list (t_list t_in))
t_out
(fun x -> List.fold_left (List.fold_left f) init x)
in
let if_ : type a. bool -> a -> a -> a = fun a b c -> if a then b else c in
(* Build a date *)
C.register3 "date" (t_int, t_int, t_int) f_date
(fun year month day ->
D.Date.get_julian_day (D.Num.to_int year) (D.Num.to_int month)
(D.Num.to_int day))
catalog
|> CompareNum.register t_int
|> C.register1 "rand" t_unit f_number D.Num.rnd
|> C.register1 "pi" t_unit f_number (fun () -> D.Num.of_float (4. *. atan 1.))
|> C.register1 "sin" t_int f_number (fun x ->
D.Num.of_float (sin (D.Num.to_float x)))
|> C.register1 "cos" t_int f_number (fun x ->
D.Num.of_float (cos (D.Num.to_float x)))
|> C.register1 "tan" t_int f_number (fun x ->
D.Num.of_float (tan (D.Num.to_float x)))
|> C.register1 "atan" t_int f_number (fun x ->
D.Num.of_float (atan (D.Num.to_float x)))
|> C.register1 "asin" t_int f_number (fun x ->
D.Num.of_float (asin (D.Num.to_float x)))
|> C.register1 "acos" t_int f_number (fun x ->
D.Num.of_float (acos (D.Num.to_float x)))
|> C.register1 "sinh" t_int f_number (fun x ->
D.Num.of_float (sinh (D.Num.to_float x)))
|> C.register1 "cosh" t_int f_number (fun x ->
D.Num.of_float (cosh (D.Num.to_float x)))
|> C.register1 "tanh" t_int f_number (fun x ->
D.Num.of_float (tanh (D.Num.to_float x)))
|> C.register2 "atan2" (t_int, t_int) f_number (fun x y ->
D.Num.of_float (atan2 (D.Num.to_float x) (D.Num.to_float y)))
|> C.register1 "sqrt" t_int f_number (fun x ->
D.Num.of_float (sqrt (D.Num.to_float x)))
|> C.register1 "exp" t_int f_number (fun x ->
D.Num.of_float (exp (D.Num.to_float x)))
|> C.register1 "ln" t_int f_number (fun x ->
D.Num.of_float (log (D.Num.to_float x)))
|> C.register3 "if" (t_bool, t_int, t_int) f_number if_
|> C.register3 "if" (t_bool, t_bool, t_bool) f_bool if_
|> C.register3 "if" (t_bool, t_string, t_string) f_string if_
|> C.register1 "abs" t_int f_number D.Num.abs
|> C.register1 "int" t_int f_number D.Num.floor
|> C.register1 "rounddown" t_int f_number D.Num.round_down
|> C.register1 "round" t_int f_number D.Num.round
|> C.register1 "trim" t_string f_string UTF8.trim
|> C.register1 "right" t_string f_string (fun x -> UTF8.get x (-1))
|> C.register2 "right" (t_string, t_int) f_string (fun t n ->
let n' = D.Num.to_int n in
UTF8.sub t (-n') n')
|> C.register1 "left" t_string f_string (fun x -> UTF8.get x 0)
|> C.register2 "left" (t_string, t_int) f_string (fun t n ->
let n' = D.Num.to_int n in
UTF8.sub t 0 n')
|> C.register1 "len" t_string f_number (fun x -> D.Num.of_int (UTF8.length x))
|> C.register1 "lenb" t_string f_number (fun x ->
D.Num.of_int (String.length (UTF8.to_utf8string x)))
|> C.register1 "lower" t_string f_string UTF8.lower
|> C.register1 "unicode" t_string f_number (fun x ->
D.Num.of_int (UTF8.code x))
|> C.register1 "unichar" t_int f_string (fun x -> UTF8.char (D.Num.to_int x))
|> C.register1 "upper" t_string f_string UTF8.upper
|> C.register3 "substitute"
(t_string, t_string, t_string)
f_string UTF8.replace
|> C.register2 "rept" (t_string, t_int) f_string (fun t n ->
UTF8.repeat (D.Num.to_int n) t)
|> CompareBool.register t_bool
|> C.register1 "true" t_unit f_bool (fun () -> D.Bool.true_)
|> C.register1 "false" t_unit f_bool (fun () -> D.Bool.false_)
|> C.register1 "not" t_bool f_bool D.Bool.not
|> C.register2 "and" (t_bool, t_bool) f_bool D.Bool.and_
|> C.register2 "or" (t_bool, t_bool) f_bool D.Bool.or_
|> C.register2 "xor" (t_bool, t_bool) f_bool D.Bool.neq
|> CompareString.register t_string
|> reduce "min" t_int f_num D.Num.min (* Minimum value from a list *)
|> reduce "max" t_int f_num D.Num.max (* Maximum value from a list *)
|> fold "sum" t_int f_number D.Num.add D.Num.zero
|> fold "product" t_int f_number D.Num.mult D.Num.one
|> C.register2 "^" (t_int, t_int) f_number D.Num.pow
|> C.register2 "power" (t_int, t_int) f_number D.Num.pow
|> C.register2 "gcd" (t_int, t_int) f_number D.Num.gcd
|> C.register2 "lcm" (t_int, t_int) f_number D.Num.lcm
|> C.register1 "+" t_int f_num (fun x -> x)
|> C.register1 "-" t_int f_num D.Num.neg (* Unary negation *)
|> C.register2 "+" (t_int, t_int) f_num D.Num.add
|> C.register2 "-" (t_int, t_int) f_num D.Num.sub
|> C.register2 "*" (t_int, t_int) f_number D.Num.mult
|> C.register2 "/" (t_int, t_int) f_number D.Num.div
|
