1 |
|
%% Copyright (c) 2022 Peter Morgan <peter.james.morgan@gmail.com> |
2 |
|
%% |
3 |
|
%% Licensed under the Apache License, Version 2.0 (the "License"); |
4 |
|
%% you may not use this file except in compliance with the License. |
5 |
|
%% You may obtain a copy of the License at |
6 |
|
%% |
7 |
|
%% http://www.apache.org/licenses/LICENSE-2.0 |
8 |
|
%% |
9 |
|
%% Unless required by applicable law or agreed to in writing, software |
10 |
|
%% distributed under the License is distributed on an "AS IS" BASIS, |
11 |
|
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 |
|
%% See the License for the specific language governing permissions and |
13 |
|
%% limitations under the License. |
14 |
|
|
15 |
|
|
16 |
|
-module(pgmp_binary). |
17 |
|
|
18 |
|
|
19 |
|
-export([foldl/3]). |
20 |
|
-export([repeat/4]). |
21 |
|
|
22 |
|
-type mapping() :: fun((binary(), any()) -> {binary(), any()}). |
23 |
|
|
24 |
|
|
25 |
|
-spec foldl(mapping(), any(), binary()) -> any(). |
26 |
|
|
27 |
|
foldl(_, A, <<>>) -> |
28 |
77 |
A; |
29 |
|
|
30 |
|
foldl(F, A0, Binary) -> |
31 |
228 |
{Remainder, A1} = F(Binary, A0), |
32 |
228 |
?FUNCTION_NAME(F, A1, Remainder). |
33 |
|
|
34 |
|
|
35 |
|
-spec repeat(non_neg_integer(), binary(), mapping(), any()) -> {binary(), any()}. |
36 |
|
|
37 |
|
repeat(0, Data, _, A) -> |
38 |
16 |
{Data, A}; |
39 |
|
|
40 |
|
repeat(N, Data, F, A0) -> |
41 |
40 |
{Remainder, A1} = F(Data, A0), |
42 |
40 |
?FUNCTION_NAME(N - 1, Remainder, F, A1). |