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%% Copyright (c) 2022 Peter Morgan <peter.james.morgan@gmail.com> |
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%% |
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%% Licensed under the Apache License, Version 2.0 (the "License"); |
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%% you may not use this file except in compliance with the License. |
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%% You may obtain a copy of the License at |
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%% |
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%% http://www.apache.org/licenses/LICENSE-2.0 |
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%% |
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%% Unless required by applicable law or agreed to in writing, software |
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%% distributed under the License is distributed on an "AS IS" BASIS, |
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%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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%% See the License for the specific language governing permissions and |
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%% limitations under the License. |
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-module(pgmp_util). |
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-export([is_exported/3]). |
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-export([semantic_version/1]). |
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-export([snake_case/1]). |
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-export([split_on_snake_case/1]). |
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-export([tl_snake_case/1]). |
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snake_case([_ | _] = Labels) -> |
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21606 |
list_to_atom(lists:concat(lists:join("_", Labels))). |
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split_on_snake_case(Name) -> |
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string:split(atom_to_list(Name), "_", all). |
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tl_snake_case(Name) -> |
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case split_on_snake_case(Name) of |
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[_] -> |
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Name; |
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Names -> |
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snake_case(tl(Names)) |
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end. |
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is_exported(M, F, A) -> |
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_ = case erlang:module_loaded(M) of |
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false -> |
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code:ensure_loaded(M); |
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true -> |
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ok |
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end, |
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erlang:function_exported(M, F, A). |
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semantic_version(Version) -> |
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{ok, MP} = re:compile( |
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"(?<major>\\d+)(\\.(?<minor>\\d+)(\\.(?<patch>\\d+))?)?"), |
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{namelist, NL} = re:inspect(MP, namelist), |
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{match, Matches} = re:run(Version, MP, [{capture, all_names, binary}]), |
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lists:foldl( |
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fun |
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({_, <<>>}, A) -> |
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A; |
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({K, V}, A) -> |
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A#{binary_to_atom(K) => binary_to_integer(V)} |
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end, |
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#{}, |
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lists:zip(NL, Matches)). |