7 files changed, 152 insertions, 1 deletions
diff --git a/include/cru/common/Base.hpp b/include/cru/common/Base.hpp
index 174ac037..ef5727c5 100644
--- a/include/cru/common/Base.hpp
+++ b/include/cru/common/Base.hpp
@@ -40,7 +40,7 @@
 
 #define CRU_DEFAULT_CONSTRUCTOR_DESTRUCTOR(classname) \
   classname() = default;                              \
-  ~classname() override = default;
+  ~classname() = default;
 
 #define CRU_DEFINE_COMPARE_OPERATORS(classname)                           \
   inline bool operator==(const classname& left, const classname& right) { \
diff --git a/include/cru/toml/TomlDocument.hpp b/include/cru/toml/TomlDocument.hpp
new file mode 100644
index 00000000..9b549daa
--- /dev/null
+++ b/include/cru/toml/TomlDocument.hpp
@@ -0,0 +1,54 @@
+#pragma once
+
+#include "cru/common/Base.hpp"
+#include "cru/common/String.hpp"
+
+#include <optional>
+#include <unordered_map>
+
+namespace cru::toml {
+class TomlSection {
+ public:
+  CRU_DEFAULT_CONSTRUCTOR_DESTRUCTOR(TomlSection)
+  CRU_DEFAULT_COPY(TomlSection)
+  CRU_DEFAULT_MOVE(TomlSection)
+
+ public:
+  std::optional<String> GetValue(const String& key) const;
+  void SetValue(const String& key, String value);
+  void DeleteValue(const String& key);
+
+  auto begin() { return values_.begin(); }
+  auto end() { return values_.end(); }
+  auto begin() const { return values_.begin(); }
+  auto end() const { return values_.end(); }
+  auto cbegin() const { return values_.cbegin(); }
+  auto cend() const { return values_.cend(); }
+
+ private:
+  std::unordered_map<String, String> values_;
+};
+
+class TomlDocument {
+ public:
+  CRU_DEFAULT_CONSTRUCTOR_DESTRUCTOR(TomlDocument)
+  CRU_DEFAULT_COPY(TomlDocument)
+  CRU_DEFAULT_MOVE(TomlDocument)
+
+ public:
+  TomlSection* GetSection(const String& name);
+  const TomlSection* GetSection(const String& name) const;
+  void SetSection(const String& name, TomlSection section);
+  void DeleteSection(const String& name);
+
+  auto begin() { return sections_.begin(); }
+  auto end() { return sections_.end(); }
+  auto begin() const { return sections_.begin(); }
+  auto end() const { return sections_.end(); }
+  auto cbegin() const { return sections_.cbegin(); }
+  auto cend() const { return sections_.cend(); }
+
+ private:
+  std::unordered_map<String, TomlSection> sections_;
+};
+}  // namespace cru::toml
diff --git a/include/cru/toml/TomlParser.hpp b/include/cru/toml/TomlParser.hpp
new file mode 100644
index 00000000..b5bcaa0b
--- /dev/null
+++ b/include/cru/toml/TomlParser.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "cru/toml/TomlDocument.hpp"
+
+#include <optional>
+
+namespace cru::toml {
+class TomlParser {
+ public:
+  explicit TomlParser(String input);
+
+  CRU_DELETE_COPY(TomlParser)
+  CRU_DELETE_MOVE(TomlParser)
+
+  ~TomlParser();
+
+ public:
+  TomlDocument Parse();
+
+ private:
+  // The document is empty to begin with.
+  void DoParse(TomlDocument& document);
+
+ private:
+  String input_;
+
+  std::optional<TomlDocument> cache_;
+};
+}  // namespace cru::toml
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index d16c075e..be8262fa 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -10,4 +10,5 @@ endif()
 
 add_subdirectory(ui)
 add_subdirectory(parse)
+add_subdirectory(toml)
 add_subdirectory(xml)
diff --git a/src/toml/CMakeLists.txt b/src/toml/CMakeLists.txt
new file mode 100644
index 00000000..0285b454
--- /dev/null
+++ b/src/toml/CMakeLists.txt
@@ -0,0 +1,5 @@
+add_library(cru_toml SHARED
+	TomlDocument.cpp
+	TomlParser.cpp
+)
+target_link_libraries(cru_toml PUBLIC cru_base)
diff --git a/src/toml/TomlDocument.cpp b/src/toml/TomlDocument.cpp
new file mode 100644
index 00000000..a785b4e4
--- /dev/null
+++ b/src/toml/TomlDocument.cpp
@@ -0,0 +1,40 @@
+#include "cru/toml/TomlDocument.hpp"
+
+namespace cru::toml {
+std::optional<String> TomlSection::GetValue(const String& key) const {
+  auto it = values_.find(key);
+  if (it == values_.end()) {
+    return std::nullopt;
+  }
+  return it->second;
+}
+
+void TomlSection::SetValue(const String& key, String value) {
+  values_[key] = std::move(value);
+}
+
+void TomlSection::DeleteValue(const String& key) { values_.erase(key); }
+
+TomlSection* TomlDocument::GetSection(const String& name) {
+  auto it = sections_.find(name);
+  if (it == sections_.end()) {
+    return nullptr;
+  }
+  return &it->second;
+}
+
+const TomlSection* TomlDocument::GetSection(const String& name) const {
+  auto it = sections_.find(name);
+  if (it == sections_.end()) {
+    return nullptr;
+  }
+  return &it->second;
+}
+
+void TomlDocument::SetSection(const String& name, TomlSection section) {
+  sections_[name] = std::move(section);
+}
+
+void TomlDocument::DeleteSection(const String& name) { sections_.erase(name); }
+
+}  // namespace cru::toml
diff --git a/src/toml/TomlParser.cpp b/src/toml/TomlParser.cpp
new file mode 100644
index 00000000..d54624f6
--- /dev/null
+++ b/src/toml/TomlParser.cpp
@@ -0,0 +1,22 @@
+#include "cru/toml/TomlParser.hpp"
+#include "cru/toml/TomlDocument.hpp"
+
+namespace cru::toml {
+TomlParser::TomlParser(String input) : input_(std::move(input)) {}
+
+TomlParser::~TomlParser() = default;
+
+TomlDocument TomlParser::Parse() {
+  if (cache_) {
+    return *cache_;
+  }
+
+  cache_ = TomlDocument();
+  DoParse(*cache_);
+  return *cache_;
+}
+
+void TomlParser::DoParse(TomlDocument& document) {
+  // TODO: Implement this.
+}
+}  // namespace cru::toml