Created
July 29, 2018 08:48
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open Core | |
open Sexplib | |
open Set | |
module Autom = functor (Alph: Set.Elt) (State: Set.Elt) -> struct | |
module AlphSet = Set.Make(Alph) | |
module StateSet = Set.Make(State) | |
type alph = Alph.t | |
type state = State.t | |
type autom = AlphSet.t * StateSet.t * (state -> alph -> state) * state * StateSet.t | |
let get_alphabets (x, _, _, _, _) = x | |
let get_states (_, x, _, _, _) = x | |
let get_trans (_, _, x, _, _) = x | |
let get_init (_, _, _, x, _) = x | |
let get_final (_, _, _, _, x) = x | |
let run (autom_: autom) word_ = | |
let pos = List.fold_left ~init:(get_init autom_) ~f:(get_trans autom_) word_ in | |
StateSet.mem (get_final autom_) pos | |
end | |
module MyAutom = Autom (Int) (String) | |
let () = | |
let alphs = [0; 1] |> MyAutom.AlphSet.of_list in | |
let states = ["q0"; "q1"] |> MyAutom.StateSet.of_list in | |
let trans s_ a_ = | |
match (s_, a_) with | |
| ("q0", 0) -> "q1" | |
| ("q0", 1) -> "q0" | |
| ("q1", 0) -> "q0" | |
| ("q1", 1) -> "q1" | |
| otherwise -> assert false | |
in | |
let init = "q0" in | |
let final = ["q0"] |> MyAutom.StateSet.of_list in | |
let autom : MyAutom.autom = (alphs, states, trans, init, final) in | |
[0;1;0] |> MyAutom.run autom |> string_of_bool |> print_endline; | |
[0;1;0;1;0] |> MyAutom.run autom |> string_of_bool |> print_endline | |
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