package shakuhachi

  1. Overview
  2. Docs
A music collection manager

Install 

dune-project
 Dependency

codeberg.org Readme Changelog Edit opam file Versions (7)

Authors

  1. E
    EruEri <nayinayu@mailo.com>

Maintainers

  1. E
    EruEri <nayinayu@mailo.com>

Sources

shakuhachi-0.4.0.tar.gz
sha256=8bd4675792ec93d705e68d4e43dc04aa1124fcaf644ae3a1a3fda68464276f95
sha512=712efcbe13e6e9d3336f72c2c25d4b41225cdd245f21adeeadc8aa4ad31ca9c905077e0873a3d1165d7c09357c009c859c4a7cd9c2d0c9bffc27144525594e72

doc/src/shakuhachi.util/listUtil.ml.html

Source file listUtil.ml

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(*****************************************************************************)
(*                                                                           *)
(*  Copyright (C) 2026 Yves Ndiaye                                           *)
(*                                                                           *)
(* This Source Code Form is subject to the terms of the Mozilla Public       *)
(* License, v. 2.0. If a copy of the MPL was not distributed with this       *)
(* file, You can obtain one at https://mozilla.org/MPL/2.0/.                 *)
(*                                                                           *)
(*****************************************************************************)

let rec remove_last acc = function
  | [] ->
      ([], None)
  | t :: [] ->
      (List.rev acc, Some t)
  | t :: q ->
      remove_last (t :: acc) q

let remove_last l = remove_last [] l

let rec map_ok f = function
  | [] ->
      Result.ok []
  | t :: q ->
      let ( let* ) = Result.bind in
      let* res = f t in
      let* list = map_ok f q in
      Result.ok @@ (res :: list)

let rec fold_ok f acc = function
  | [] ->
      Result.ok acc
  | t :: q ->
      let ( let* ) = Result.bind in
      let* acc = f acc t in
      fold_ok f acc q