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%% Copyright (c) 2023 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(pgsqlp_keyword). |
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-export([by_category/1]). |
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-export([cache/0]). |
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-import(scran_branch, [alt/1]). |
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-import(scran_character_complete, [re_no_case/1]). |
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-on_load(on_load/0). |
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-type keyword() :: unicode:chardata(). |
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-type category() :: col_name_keyword |
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| reserved_keyword |
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| type_func_name_keyword |
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| unreserved_keyword. |
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-type is_bare_label() :: bare_label |
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| as_label. |
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-spec cache() -> [{keyword(), atom(), category(), is_bare_label()}]. |
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cache() -> |
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persistent_term:get(?MODULE). |
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-spec by_category(category()) -> scran:parser(). |
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by_category(Desired) -> |
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fun |
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(Input) -> |
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(alt( |
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[re_no_case(Keyword ++ "\\b") || |
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{Keyword, _, Category, _} <- cache(), |
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Desired == Category]))(Input) |
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end. |
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on_load() -> |
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persistent_term:put( |
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?MODULE, |
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pgsqlp:priv_consult("keyword.terms")). |