| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // SPDX-FileCopyrightText: 2022-2023 Dennis Gläser <dennis.glaeser@iws.uni-stuttgart.de> | ||
| 2 | // SPDX-License-Identifier: MIT | ||
| 3 | /*! | ||
| 4 | * \ingroup XML | ||
| 5 | * \copydoc GridFormat::XMLTag | ||
| 6 | */ | ||
| 7 | #ifndef GRIDFORMAT_XML_TAG_HPP_ | ||
| 8 | #define GRIDFORMAT_XML_TAG_HPP_ | ||
| 9 | |||
| 10 | #include <ranges> | ||
| 11 | #include <concepts> | ||
| 12 | #include <string> | ||
| 13 | #include <string_view> | ||
| 14 | #include <utility> | ||
| 15 | #include <vector> | ||
| 16 | #include <algorithm> | ||
| 17 | |||
| 18 | #include <gridformat/common/exceptions.hpp> | ||
| 19 | #include <gridformat/common/string_conversion.hpp> | ||
| 20 | |||
| 21 | namespace GridFormat { | ||
| 22 | |||
| 23 | #ifndef DOXYGEN | ||
| 24 | namespace Detail { | ||
| 25 | |||
| 26 | template<typename Attribute> | ||
| 27 | 1901300 | auto _attr_find_lambda(std::string_view name) { | |
| 28 | 5844378 | return [name] (const Attribute& attr) { return attr.first == name; }; | |
| 29 | } | ||
| 30 | |||
| 31 | template<typename T> | ||
| 32 | concept RepresentableAsString = requires(const T& t) { | ||
| 33 | { as_string(t) } -> std::convertible_to<std::string>; | ||
| 34 | }; | ||
| 35 | |||
| 36 | } // end namespace Detail | ||
| 37 | #endif // DOXYGEN | ||
| 38 | |||
| 39 | /*! | ||
| 40 | * \ingroup XML | ||
| 41 | * \brief Class to represent an XML tag consisting of a name and attributes. | ||
| 42 | */ | ||
| 43 | class XMLTag { | ||
| 44 | public: | ||
| 45 | using Attribute = std::pair<std::string, std::string>; | ||
| 46 | |||
| 47 | 269132 | explicit XMLTag(std::string name) | |
| 48 | 269132 | : _name(std::move(name)) | |
| 49 | 269132 | {} | |
| 50 | |||
| 51 | 2204265 | const std::string& name() const noexcept { | |
| 52 | 2204265 | return _name; | |
| 53 | } | ||
| 54 | |||
| 55 | 3 | std::size_t number_of_attributes() const noexcept { | |
| 56 | 3 | return _attributes.size(); | |
| 57 | } | ||
| 58 | |||
| 59 | 66528 | bool has_attribute(std::string_view name) const { | |
| 60 |
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66528 | return _find(name) != _attributes.end(); |
| 61 | } | ||
| 62 | |||
| 63 | template<Detail::RepresentableAsString ValueType> | ||
| 64 | 1794058 | void set_attribute(std::string attr_name, ValueType&& value) { | |
| 65 |
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1794058 | if (auto it = _find(attr_name); it != _attributes.end()) |
| 66 | ✗ | *it = Attribute{std::move(attr_name), as_string(value)}; | |
| 67 | else | ||
| 68 |
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1794058 | _attributes.emplace_back(Attribute{std::move(attr_name), as_string(value)}); |
| 69 | 1794058 | } | |
| 70 | |||
| 71 | 2 | bool remove_attribute(std::string_view attr_name) { | |
| 72 | 2 | return std::erase_if(_attributes, Detail::_attr_find_lambda<Attribute>(attr_name)); | |
| 73 | } | ||
| 74 | |||
| 75 | template<std::ranges::input_range R> | ||
| 76 | requires(std::convertible_to<std::ranges::range_value_t<R>, std::string_view>) | ||
| 77 | 1 | std::size_t remove_attributes(R&& attrs_to_remove) { | |
| 78 | 1 | return std::erase_if(_attributes, | |
| 79 | 2 | [&] (const Attribute& attr) { | |
| 80 | 2 | return std::ranges::any_of(attrs_to_remove, | |
| 81 | 3 | [&] (std::string_view attr_to_remove) { | |
| 82 | 3 | return attr_to_remove == attr.first; | |
| 83 | 2 | }); | |
| 84 | 1 | }); | |
| 85 | } | ||
| 86 | |||
| 87 | template<typename T = std::string> | ||
| 88 | 913544 | T get_attribute(std::string_view attr_name) const { | |
| 89 |
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1827078 | if (auto result = _get_attribute<T>(attr_name); result) |
| 90 | 1827076 | return *std::move(result); | |
| 91 | ✗ | throw InvalidState("No attribute with name '" + std::string(attr_name) + "'"); | |
| 92 | } | ||
| 93 | |||
| 94 | template<typename T = std::string> | ||
| 95 | 48408 | T get_attribute_or(T fallback, std::string_view attr_name) const { | |
| 96 |
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48408 | return _get_attribute<T>(attr_name).value_or(fallback); |
| 97 | } | ||
| 98 | |||
| 99 | 226286 | friend decltype(auto) attributes(const XMLTag& tag) { | |
| 100 | 226286 | return std::views::keys(tag._attributes); | |
| 101 | } | ||
| 102 | |||
| 103 | private: | ||
| 104 | template<typename T> | ||
| 105 | 1158314 | std::optional<T> _get_attribute(std::string_view attr_name) const { | |
| 106 |
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1158314 | if (const auto it = _find(attr_name); it != _attributes.end()) |
| 107 |
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1149714 | return from_string<T>(it->second); |
| 108 | 8600 | return {}; | |
| 109 | } | ||
| 110 | |||
| 111 | 1004269 | typename std::vector<Attribute>::const_iterator _find(std::string_view n) const { | |
| 112 | 1004269 | return std::ranges::find_if(_attributes, Detail::_attr_find_lambda<Attribute>(n)); | |
| 113 | } | ||
| 114 | 897029 | typename std::vector<Attribute>::iterator _find(std::string_view n) { | |
| 115 | 897029 | return std::ranges::find_if(_attributes, Detail::_attr_find_lambda<Attribute>(n)); | |
| 116 | } | ||
| 117 | |||
| 118 | std::string _name; | ||
| 119 | std::vector<Attribute> _attributes; | ||
| 120 | }; | ||
| 121 | |||
| 122 | } // end namespace GridFormat | ||
| 123 | |||
| 124 | #endif // GRIDFORMAT_XML_TAG_HPP_ | ||
| 125 |