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https://github.com/diasurgical/DevilutionX.git
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Gleb MazovetskiyandClaude Fable 5
63e85d9b1b
Now that the project targets C++23, use the standard library's std::expected instead of the vendored tl::expected polyfill: - tl::expected -> std::expected, tl::unexpected/tl::make_unexpected -> std::unexpected - .map()/.map_error() -> .transform()/.transform_error() - #include <expected.hpp> -> #include <expected>, grouped with std headers - Remove 3rdParty/tl/expected.hpp (the tl target remains for function_ref.hpp) Co-Authored-By: Claude Fable 5 <[email protected]>
125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <expected>
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#include <optional>
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#include <span>
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#include <string>
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#include <string_view>
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#include <utility>
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#include <variant>
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#include <vector>
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#include <ankerl/unordered_dense.h>
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#include "utils/string_view_hash.hpp"
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namespace devilution {
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class Ini {
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public:
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// A single value associated with a section and key.
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struct Value {
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// When setting a value, `nullopt` results
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// in preserving the existing comment if any.
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std::optional<std::string> comment;
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std::string value;
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};
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// All the values associated with a section and key.
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class Values {
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public:
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/**
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* @brief Constructs an empty set of values.
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*
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* If passed to `set`, the key is deleted.
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*/
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Values();
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explicit Values(const Value &data);
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[[nodiscard]] std::span<const Value> get() const;
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[[nodiscard]] std::span<Value> get();
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void append(const Value &value);
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private:
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// Most keys only have a single value, so we use
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// a representation that avoids allocations in that case.
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std::variant<Value, std::vector<Value>> rep_;
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friend class Ini;
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};
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static std::expected<Ini, std::string> parse(std::string_view buffer);
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[[nodiscard]] std::string serialize() const;
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/** @return all the keys associated with this section in the ini */
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[[nodiscard]] std::vector<std::string> getKeys(std::string_view section) const;
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/** @return all the values associated with this section and key in the ini */
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[[nodiscard]] std::span<const Value> get(std::string_view section, std::string_view key) const;
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/** @return the default value if the ini value is unset or empty */
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[[nodiscard]] std::string_view getString(std::string_view section, std::string_view key, std::string_view defaultValue = {}) const;
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/** @return the default value if the ini value is unset or empty */
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[[nodiscard]] bool getBool(std::string_view section, std::string_view key, bool defaultValue) const;
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/** @return the default value if the ini value is unset or empty */
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[[nodiscard]] int getInt(std::string_view section, std::string_view key, int defaultValue) const;
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/** @return the default value if the ini value is unset or empty */
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[[nodiscard]] float getFloat(std::string_view section, std::string_view key, float defaultValue) const;
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void getUtf8Buf(std::string_view section, std::string_view key, std::string_view defaultValue, char *dst, size_t dstSize) const;
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void getUtf8Buf(std::string_view section, std::string_view key, char *dst, size_t dstSize) const
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{
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getUtf8Buf(section, key, /*defaultValue=*/ {}, dst, dstSize);
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}
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[[nodiscard]] bool changed() const { return changed_; }
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void markAsUnchanged() { changed_ = false; }
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// If values are empty, deletes the entry.
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void set(std::string_view section, std::string_view key, Values &&values);
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void set(std::string_view section, std::string_view key, std::span<const std::string> value);
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void set(std::string_view section, std::string_view key, std::string &&value);
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void set(std::string_view section, std::string_view key, std::string_view value);
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void set(std::string_view section, std::string_view key, const char *value)
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{
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set(section, key, std::string_view(value));
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}
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void set(std::string_view section, std::string_view key, bool value);
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void set(std::string_view section, std::string_view key, int value);
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void set(std::string_view section, std::string_view key, float value);
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private:
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struct ValuesData {
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Values values;
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uint32_t index;
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};
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struct SectionData {
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std::string comment;
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ankerl::unordered_dense::map<std::string, ValuesData, StringViewHash, StringViewEquals> entries;
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uint32_t index;
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};
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struct FileData {
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ankerl::unordered_dense::map<std::string, SectionData, StringViewHash, StringViewEquals> sections;
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};
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explicit Ini(FileData &&data)
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: data_(std::move(data))
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{
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}
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FileData data_;
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bool changed_ = false;
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};
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} // namespace devilution
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