mirror of
https://github.com/PixlOne/logiops.git
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61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/*
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* Copyright 2022 PixlOne
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef LOGID_CONFIG_MAP_H
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#define LOGID_CONFIG_MAP_H
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#include <config/group.h>
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#include <map>
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#include <optional>
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#include <utility>
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namespace logid::config {
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struct string_literal { };
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template<const char* str>
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struct string_literal_of : public string_literal {
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constexpr static const char* value = str;
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};
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template<class T>
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struct less_caseless {
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constexpr bool operator()(const T& a, const T& b) const noexcept {
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auto a_it = a.begin(), b_it = b.begin();
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for (; a_it != a.end() && b_it != b.end(); ++a_it, ++b_it) {
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if (tolower(*a_it) != tolower(*b_it))
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return tolower(*a_it) < tolower(*b_it);
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}
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return b_it != b.end();
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}
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};
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// Warning: map must be a variant of groups or a group
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template<typename K, typename V, typename KeyName,
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typename Compare=typename std::map<K, V>::key_compare,
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typename Allocator=typename std::map<K, V>::allocator_type>
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class map : public std::map<K, V, Compare, Allocator> {
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static_assert(std::is_base_of<string_literal, KeyName>::value,
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"KeyName must be a string_literal");
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public:
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template<typename... Args>
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explicit map(Args... args) :
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std::map<K, V, Compare, Allocator>(std::forward<Args>(args)...) {}
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};
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}
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#endif //LOGID_CONFIG_MAP_H
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