src/ast/ast.h

@@ -11,9 +11,28 @@
 
 namespace obelisk
 {
+    /**
+     * @brief The LLVM context.
+     *
+     */
     static std::unique_ptr<llvm::LLVMContext> TheContext;
+
+    /**
+     * @brief The LLVM module.
+     *
+     */
     static std::unique_ptr<llvm::Module> TheModule;
+
+    /**
+     * @brief The LLVM IR builder.
+     *
+     */
     static std::unique_ptr<llvm::IRBuilder<>> Builder;
+
+    /**
+     * @brief The LLVM named values.
+     *
+     */
     static std::map<std::string, llvm::Value *> NamedValues;
 } // namespace obelisk
 

src/ast/call_expression_ast.h

@@ -9,25 +9,71 @@
 
 namespace obelisk
 {
+    /**
+     * @brief The call AST expression node used to call functions.
+     *
+     */
     class CallExpressionAST : public ExpressionAST
     {
         private:
+            /**
+             * @brief The function being called.
+             *
+             */
             std::string callee_;
+
+            /**
+             * @brief The arguments passed to the function.
+             *
+             */
             std::vector<std::unique_ptr<ExpressionAST>> args_;
 
+            /**
+             * @brief Get the callee.
+             *
+             * @return std::string Returns the name of the function being called.
+             */
             std::string getCallee();
+
+            /**
+             * @brief Set the callee.
+             *
+             * @param[in] callee The name of the function.
+             */
             void setCallee(std::string callee);
 
+            /**
+             * @brief Get the arguments being used by the function.
+             *
+             * @return std::vector<std::unique_ptr<ExpressionAST>> Returns an AST expression containing the args.
+             */
             std::vector<std::unique_ptr<ExpressionAST>> getArgs();
+
+            /**
+             * @brief Set the arguments to be used by the function.
+             *
+             * @param[in] args The args to set.
+             */
             void setArgs(std::vector<std::unique_ptr<ExpressionAST>> args);
 
         public:
+            /**
+             * @brief Construct a new CallExpressionAST object.
+             *
+             * @param[in] callee The function to call.
+             * @param[in] args The args to pass into the function.
+             */
             CallExpressionAST(const std::string &callee, std::vector<std::unique_ptr<ExpressionAST>> args) :
                 callee_(callee),
                 args_(std::move(args))
             {
             }
 
+            /**
+             * @brief Generate the calle IR code.
+             *
+             * @return llvm::Value*
+             */
             llvm::Value *codegen() override;
     };
 } // namespace obelisk

src/ast/error.h

@@ -7,8 +7,21 @@
 
 namespace obelisk
 {
-    std::unique_ptr<ExpressionAST> LogError(const char *Str);
+    /**
-    llvm::Value *LogErrorV(const char *Str);
+     * @brief Log an AST expression error.
+     *
+     * @param[in] str The error message.
+     * @return std::unique_ptr<ExpressionAST> Returns the AST expression that caused the error.
+     */
+    std::unique_ptr<ExpressionAST> LogError(const char *str);
+
+    /**
+     * @brief Log an AST value error.
+     *
+     * @param[in] str The error message.
+     * @return llvm::Value* Returns the AST value that caused the error.
+     */
+    llvm::Value *LogErrorV(const char *str);
 } // namespace obelisk
 
 #endif

src/ast/expression_ast.h

@@ -5,10 +5,24 @@
 
 namespace obelisk
 {
+    /**
+     * @brief A generic AST expression which other expression will inherit from.
+     *
+     */
     class ExpressionAST
     {
         public:
+            /**
+             * @brief Destroy the ExpressionAST object.
+             *
+             */
             virtual ~ExpressionAST() = default;
+
+            /**
+             * @brief Generate LLVM IR code based on the AST expression.
+             *
+             * @return llvm::Value* Returns the LLVM code value from the expression.
+             */
             virtual llvm::Value *codegen() = 0;
     };
 } // namespace obelisk

src/ast/function_ast.h

@@ -8,22 +8,57 @@
 
 namespace obelisk
 {
+    /**
+     * @brief A Funcion AST node.
+     *
+     */
     class FunctionAST
     {
         private:
+            /**
+             * @brief The prototype of the function.
+             *
+             */
             std::unique_ptr<PrototypeAST> prototype_;
+
+            /**
+             * @brief The body of the function.
+             *
+             */
             std::unique_ptr<ExpressionAST> body_;
 
+            /**
+             * @brief Get the prototype.
+             *
+             * @return std::unique_ptr<PrototypeAST> Returns the prototype AST.
+             */
             std::unique_ptr<PrototypeAST> getPrototype();
+
+            /**
+             * @brief Set the prototype.
+             *
+             * @param[in] prototype Set the prototype.
+             */
             void setPrototype(std::unique_ptr<PrototypeAST> prototype);
 
         public:
+            /**
+             * @brief Construct a new FunctionAST object.
+             *
+             * @param[in] prototype The prototype of the function.
+             * @param[in] body The body of the function.
+             */
             FunctionAST(std::unique_ptr<PrototypeAST> prototype, std::unique_ptr<ExpressionAST> body) :
                 prototype_(std::move(prototype)),
                 body_(std::move(body))
             {
             }
 
+            /**
+             * @brief Generate LLVM IR code.
+             *
+             * @return llvm::Function* Returns the LLVM IR function code.
+             */
             llvm::Function *codegen();
     };
 } // namespace obelisk

src/ast/number_expression_ast.h

@@ -5,20 +5,49 @@
 
 namespace obelisk
 {
+    /**
+     * @brief A number expression AST node.
+     *
+     */
     class NumberExpressionAST : public ExpressionAST
     {
         private:
+            /**
+             * @brief The number.
+             *
+             */
             double number_;
 
+            /**
+             * @brief Get the number.
+             *
+             * @return double Returns the number.
+             */
             double getNumber();
+
+            /**
+             * @brief Set the number.
+             *
+             * @param[in] number The number.
+             */
             void setNumber(double number);
 
         public:
+            /**
+             * @brief Construct a new NumberExpressionAST object.
+             *
+             * @param[in] number The number.
+             */
             NumberExpressionAST(double number) :
                 number_(number)
             {
             }
 
+            /**
+             * @brief Generate LLVM IR code for the number.
+             *
+             * @return llvm::Value* Returns the genrated IR code.
+             */
             llvm::Value *codegen() override;
     };
 } // namespace obelisk

src/ast/prototype_ast.h

@@ -8,28 +8,73 @@
 
 namespace obelisk
 {
+    /**
+     * @brief The prototype AST node.
+     *
+     */
     class PrototypeAST
     {
         private:
+            /**
+             * @brief The name of the prototype.
+             *
+             */
             std::string name_;
+            /**
+             * @brief The arguments the protype accepts.
+             *
+             */
             std::vector<std::string> args_;
 
+            /**
+             * @brief Set the name of the prototype.
+             *
+             * @param[in] name The name.
+             */
             void setName(const std::string& name);
+
+            /**
+             * @brief Get the arguments the prototype accepts.
+             *
+             * @return std::vector<std::string> Returns the arguments.
+             */
             std::vector<std::string> getArgs();
+
+            /**
+             * @brief Set the arguments the prototype accepts.
+             *
+             * @param[in] args The arguments.
+             */
             void setArgs(std::vector<std::string> args);
 
         public:
+            /**
+             * @brief Construct a new PrototypeAST object.
+             *
+             * @param[in] name The name of the prototype.
+             * @param[in] args The arguments the prototype accepts.
+             */
             PrototypeAST(const std::string& name, std::vector<std::string> args) :
                 name_(name),
                 args_(std::move(args))
             {
             }
 
+            /**
+             * @brief Get the name of the prototype.
+             *
+             * @return const std::string& Returns the name of the prototype.
+             */
             const std::string& getName() const
             {
                 return name_;
             }
 
+            /**
+             * @brief Generate LLVM IR code for the prototype.
+             *
+             * @return llvm::Function* Returns IR code for the prototype.
+             */
             llvm::Function* codegen();
     };
 } // namespace obelisk

src/ast/variable_expression_ast.h

@@ -7,19 +7,49 @@
 
 namespace obelisk
 {
+    /**
+     * @brief The variable expression AST node.
+     *
+     */
     class VariableExpressionAST : public ExpressionAST
     {
         private:
+            /**
+             * @brief The name of the variable.
+             *
+             */
             std::string name_;
+
+            /**
+             * @brief Get the name of the variable.
+             *
+             * @return std::string Returns the name of the variable.
+             */
             std::string getName();
+
+            /**
+             * @brief Set the name of the variable.
+             *
+             * @param[in] name The name of the variable.
+             */
             void setName(const std::string name);
 
         public:
+            /**
+             * @brief Construct a new VariableExpressionAST object.
+             *
+             * @param[in] name The name of the variable.
+             */
             VariableExpressionAST(const std::string &name) :
                 name_(name)
             {
             }
 
+            /**
+             * @brief Generate the variable LLVM IR code.
+             *
+             * @return llvm::Value* Returns the generated IR code.
+             */
             llvm::Value *codegen() override;
     };
 } // namespace obelisk

src/lexer.h

@@ -56,22 +56,19 @@ namespace obelisk
             /**
              * @brief Comment the rest of the line.
              *
-             * @param[in] lastChar The char to check to see if it in the end of
+             * @param[in] lastChar The char to check to see if it in the end of the line.
-             * the line.
              */
             void commentLine(int* lastChar);
 
         public:
             /**
-             * @brief These token represent recognized language keywords and
+             * @brief These token represent recognized language keywords and language functionality.
-             * language functionality.
              *
              */
             enum Token
             {
                 /**
-                 * @brief End of file is returned when the source code is
+                 * @brief End of file is returned when the source code is finished.
-                 * finished.
                  *
                  */
                 kTokenEof = -1,
@@ -82,8 +79,7 @@ namespace obelisk
                  */
                 kTokenFact   = -2,
                 /**
-                 * @brief A rule which is a relationship between a new fact a
+                 * @brief A rule which is a relationship between a new fact a existing fact.
-                 * existing fact.
                  *
                  */
                 kTokenRule   = -3,
@@ -137,16 +133,14 @@ namespace obelisk
              * @brief Gets the next token in the source code.
              *
              * @throws LexerException when an invalid token is found.
-             * @return int Returns a Token value or char if no known token was
+             * @return int Returns a Token value or char if no known token was found.
-             * found.
              */
             int getToken();
 
             /**
              * @brief Get the last identifier.
              *
-             * @return const std::string& Returns a string that contains the
+             * @return const std::string& Returns a string that contains the last found identifier.
-             * last found identifier.
              */
             const std::string& getIdentifier();
 
@@ -194,8 +188,7 @@ namespace obelisk
             /**
              * @brief Return the exception's error message.
              *
-             * @return const char* Returns a string containing the error
+             * @return const char* Returns a string containing the error message.
-             * message.
              */
             const char* what() const noexcept
             {

src/lib/include/obelisk.h

@@ -1,15 +1,13 @@
 #include <string>
 
 /**
- * @brief The obelisk namespace contains everything needed to compile obelisk.
+ * @brief The obelisk namespace contains everything needed to compile obelisk code.
- * code.
  *
  */
 namespace obelisk
 {
     /**
-     * @brief The obelisk library provides everything needed to consult the
+     * @brief The obelisk library provides everything needed to consult the KnowledgeBase.
-     * KnowledgeBase.
      *
      */
     class Obelisk

src/lib/knowledge_base.h

@@ -18,8 +18,7 @@
 namespace obelisk
 {
     /**
-     * @brief The KnowledgeBase class represents a collection of facts, rules,
+     * @brief The KnowledgeBase class represents a collection of facts, rules, actions, and related language connectors.
-     * actions, and related language connectors.
      *
      */
     class KnowledgeBase
@@ -46,8 +45,8 @@ namespace obelisk
             /**
              * @brief Enable foreign key functionality in the open database.
              *
-             * This must always be done when the connection is opened or it will
+             * This must always be done when the connection is opened or it will not enforce the foreign key
-             * not enforce the foreign key constraints.
+             * constraints.
              */
             void enableForeignKeys();
 
@@ -62,8 +61,7 @@ namespace obelisk
             /**
              * @brief Construct a new KnowledgeBase object.
              *
-             * @param[in] filename The name of the file to save the knowledge
+             * @param[in] filename The name of the file to save the knowledge base as.
-             * base as.
              * @param[in] flags The flags to open the KnowledgeBase with.
              */
             KnowledgeBase(const char* filename, int flags);
@@ -71,8 +69,7 @@ namespace obelisk
             /**
              * @brief Construct a new KnowledgeBase object.
              *
-             * @param[in] filename The name of the file to save the knowledge
+             * @param[in] filename The name of the file to save the knowledge base as.
-             * base as.
              */
             KnowledgeBase(const char* filename) :
                 KnowledgeBase(filename, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE)
@@ -89,103 +86,96 @@ namespace obelisk
             /**
              * @brief Add entities to the KnowledgeBase.
              *
-             * @param[in,out] entities The entities to add. If the insert is
+             * @param[in,out] entities The entities to add. If the insert is successful it will have a row ID, if not
-             * successful it will have a row ID, if not the ID will be 0.
+             * the ID will be 0.
              */
             void addEntities(std::vector<obelisk::Entity>& entities);
 
             /**
              * @brief Add verbs to the KnowledgeBase.
              *
-             * @param[in,out] verbs The verbs to add. If the insert is
+             * @param[in,out] verbs The verbs to add. If the insert is successful it will have a row ID, if not the ID
-             * successful it will have a row ID, if not the ID will be 0.
+             * will be 0.
              */
             void addVerbs(std::vector<obelisk::Verb>& verbs);
 
             /**
              * @brief Add actions to the KnowledgeBase.
              *
-             * @param[in,out] actions The actions to add. If the insert is
+             * @param[in,out] actions The actions to add. If the insert is successful it will have a row ID, if nto the
-             * successful it will have a row ID, if nto the ID will be 0.
+             * ID will be 0.
              */
             void addActions(std::vector<obelisk::Action>& actions);
 
             /**
              * @brief Add facts to the KnowledgeBase.
              *
-             * @param[in,out] facts The facts to add. If the insert is
+             * @param[in,out] facts The facts to add. If the insert is successful it will have a row ID, if not the ID
-             * successful it will have a row ID, if not the ID will be 0.
+             * will be 0.
              */
             void addFacts(std::vector<obelisk::Fact>& facts);
 
             /**
              * @brief Add suggested actions to the KnowledgeBase.
              *
-             * @param[in,out] suggestActions The suggested actions to add. If
+             * @param[in,out] suggestActions The suggested actions to add. If the insert is successful it will have a
-             * the insert is successful it will have a row ID, if not the ID
+             * row ID, if not the ID will be 0.
-             * will be 0.
              */
             void addSuggestActions(std::vector<obelisk::SuggestAction>& suggestActions);
 
             /**
              * @brief Add rules to the KnowledgeBase.
              *
-             * @param[in,out] rules The rules to add. If the insert is successful it
+             * @param[in,out] rules The rules to add. If the insert is successful it will have a row ID, if not the ID
-             * will have a row ID, if not the ID will be 0.
+             * will be 0.
              */
             void addRules(std::vector<obelisk::Rule>& rules);
 
             /**
              * @brief Get an Entity object based on the ID it contains.
              *
-             * @param[in,out] entity The Entity object should contain just the
+             * @param[in,out] entity The Entity object should contain just the ID and the rest will be filled in.
-             * ID and the rest will be filled in.
              */
             void getEntity(obelisk::Entity& entity);
 
             /**
              * @brief Get a Verb object based on the ID it contains.
              *
-             * @param[in,out] verb The Verb object should contain just the ID
+             * @param[in,out] verb The Verb object should contain just the ID and the rest will be filled in.
-             * and the rest will be filled in.
              */
             void getVerb(obelisk::Verb& verb);
 
             /**
              * @brief Get an Action based on the ID it contains.
              *
-             * @param[in] action The Action object should contain just the ID
+             * @param[in] action The Action object should contain just the ID and the rest will be filled in.
-             * and the rest will be filled in.
              */
             void getAction(obelisk::Action& action);
 
             /**
              * @brief Get a Fact object based on the ID it contains.
              *
-             * @param[in,out] fact The Fact object should contain just the ID
+             * @param[in,out] fact The Fact object should contain just the ID and the rest will be filled in.
-             * and the rest will be filled in.
              */
             void getFact(obelisk::Fact& fact);
 
             /**
              * @brief Get a SuggestAction based on the ID it contains.
              *
-             * @param[in,out] suggestAction The SuggestAction object should
+             * @param[in,out] suggestAction The SuggestAction object should contain just the ID and the rest will be
-             * contain just the ID and the rest will be filled in.
+             * filled in.
              */
             void getSuggestAction(obelisk::SuggestAction& suggestAction);
 
             /**
              * @brief Get a Rule based on the ID it contains.
              *
-             * @param[in,out] rule The Rule object should  contain just the ID
+             * @param[in,out] rule The Rule object should  contain just the ID and the rest will be filled in.
-             * and the rest will be filled in.
              */
             void getRule(obelisk::Rule& rule);
 
             /**
-             * @brief Check if a rule looks for this Fact, if so update its
+             * @brief Check if a rule looks for this Fact, if so update its truth.
-             * truth.
              *
              * @param[in,out] fact The Fact to check for existing rules.
              */
@@ -201,10 +191,8 @@ namespace obelisk
             /**
              * @brief Take a float and divide it into 2 floats.
              *
-             * This is useful to store doubles in SQLite since SQLite doesn't
+             * This is useful to store doubles in SQLite since SQLite doesn't have a double type. Instead just store the
-             * have a double type.
+             * 2 floats in the database. Then after selecting them combine them.
-             * Instead just store the 2 floats in the database. Then after
-             * selecting them combine them.
              *
              * @param[out] result1 The first float generated from the double.
              * @param[out] result2 The second float generated from the double.
@@ -215,8 +203,7 @@ namespace obelisk
             /**
              * @brief Combines 2 separated floats back into a double.
              *
-             * This will recombine the separated floats from the getFloat
+             * This will recombine the separated floats from the getFloat method.
-             * method.
              *
              * @param[out] result The double generated from the combined floats.
              * @param[in] var1 The first float to combine.

src/lib/models/action.h

@@ -8,8 +8,7 @@
 namespace obelisk
 {
     /**
-     * @brief The Action model represents an action to take when a fact is true
+     * @brief The Action model represents an action to take when a fact is true or false.
-     * or false.
      *
      */
     class Action
@@ -108,16 +107,14 @@ namespace obelisk
             void setName(std::string name);
 
             /**
-             * @brief Select an Action from the datbase based on the object
+             * @brief Select an Action from the datbase based on the object name.
-             * name.
              *
              * @param[in] dbConnection The database connection to use.
              */
             void selectByName(sqlite3* dbConnection);
 
             /**
-             * @brief Insert an Action into the KnowledgeBase based on the
+             * @brief Insert an Action into the KnowledgeBase based on the object's fields.
-             * object's fields.
              *
              * @param[in] dbConnection The database connection to use.
              */

src/lib/models/entity.h

@@ -8,8 +8,7 @@
 namespace obelisk
 {
     /**
-     * @brief The Entity model represents either a left or right side entity,
+     * @brief The Entity model represents either a left or right side entity, typically used in facts and rules.
-     * typically used in facts and rules.
      *
      */
     class Entity
@@ -108,16 +107,14 @@ namespace obelisk
             void setName(std::string name);
 
             /**
-             * @brief Select an Entity from the KnowledgeBase based on the object's
+             * @brief Select an Entity from the KnowledgeBase based on the object's name.
-             * name.
              *
              * @param[in] dbConnection The database connection to use.
              */
             void selectByName(sqlite3* dbConnection);
 
             /**
-             * @brief Insert an Entity into the KnowledgeBase based on the object's
+             * @brief Insert an Entity into the KnowledgeBase based on the object's fields.
-             * fields.
              *
              * @param[in] dbConnection The database connection to use.
              */

src/lib/models/error.h

@@ -42,8 +42,7 @@ namespace obelisk
             /**
              * @brief Construct a new DatabaseException object.
              *
-             * @param[in] errorMessage The error message to describe the
+             * @param[in] errorMessage The error message to describe the exception.
-             * exception.
              */
             DatabaseException(const std::string& errorMessage) :
                 errorMessage_(errorMessage)
@@ -72,8 +71,7 @@ namespace obelisk
     };
 
     /**
-     * @brief Exception thrown if the string or blob size exceeds sqlite's
+     * @brief Exception thrown if the string or blob size exceeds sqlite's limits.
-     * limits.
      *
      */
     class DatabaseSizeException : public obelisk::DatabaseException
@@ -107,8 +105,7 @@ namespace obelisk
     };
 
     /**
-     * @brief Exception thrown if there is not enough memory to perform the
+     * @brief Exception thrown if there is not enough memory to perform the operation.
-     * operation.
      *
      */
     class DatabaseMemoryException : public obelisk::DatabaseException
@@ -178,8 +175,7 @@ namespace obelisk
             /**
              * @brief Construct a new DatabaseConstraintException object.
              *
-             * @param[in] errorMessage The error message to send when the
+             * @param[in] errorMessage The error message to send when the constraint is violated.
-             * constraint is violated.
              */
             DatabaseConstraintException(const std::string& errorMessage)
             {

src/lib/models/fact.h

@@ -10,8 +10,7 @@
 namespace obelisk
 {
     /**
-     * @brief The Fact model represents truth in the releationship between two
+     * @brief The Fact model represents truth in the releationship between two entities separated by a verb.
-     * entities separated by a verb.
      *
      */
     class Fact
@@ -36,8 +35,7 @@ namespace obelisk
             obelisk::Entity rightEntity_;
 
             /**
-             * @brief The Verb that represents the relationship in the
+             * @brief The Verb that represents the relationship in the expression.
-             * expression.
              *
              */
             obelisk::Verb verb_;
@@ -79,10 +77,8 @@ namespace obelisk
             /**
              * @brief Construct a new Fact object.
              *
-             * @param[in] leftEntity The Entity on the left side of the
+             * @param[in] leftEntity The Entity on the left side of the expression.
-             * expression.
+             * @param[in] rightEntity The Entity on the right side of the expression.
-             * @param[in] rightEntity The Entity on the right side of the
-             * expression.
              * @param[in] verb The Verb separating the entities.
              * @param[in] isTrue Whether or not the fact is true.
              */
@@ -99,10 +95,8 @@ namespace obelisk
              * @brief Construct a new Fact object.
              *
              * @param[in] id The ID of the Fact in the KnowledgeBase.
-             * @param[in] leftEntity The Entity on the left side of the
+             * @param[in] leftEntity The Entity on the left side of the expression.
-             * expression.
+             * @param[in] rightEntity The Entity on the right side of the expression.
-             * @param[in] rightEntity The Entity on the right side of the
-             * expression.
              * @param[in] verb The Verb separating the entities.
              * @param[in] isTrue Whether or not the fact is true.
              */
@@ -198,8 +192,7 @@ namespace obelisk
             void setIsTrue(bool isTrue);
 
             /**
-             * @brief Select the Fact from the KnowledgeBase by IDs of the
+             * @brief Select the Fact from the KnowledgeBase by IDs of the sub-objects.
-             * sub-objects.
              *
              * @param[in] dbConnection The database connection to use.
              */
@@ -213,8 +206,7 @@ namespace obelisk
             void insert(sqlite3* dbConnection);
 
             /**
-             * @brief Update whether or not the fact is true in the
+             * @brief Update whether or not the fact is true in the KnowledgeBase.
-             * KnowledgeBase.
              *
              * @param[in] dbConnection The database connection.
              */

src/lib/models/rule.h

@@ -134,8 +134,7 @@ namespace obelisk
             void setReason(obelisk::Fact reason);
 
             /**
-             * @brief Select the Rule from the KnowledgeBase by IDs of the
+             * @brief Select the Rule from the KnowledgeBase by IDs of the sub-objects.
-             * sub-objects.
              *
              * @param[in] dbConnection The database connection to use.
              */

src/lib/models/suggest_action.h

@@ -9,8 +9,7 @@
 namespace obelisk
 {
     /**
-     * @brief The SuggestAction model representas the actions to take depending
+     * @brief The SuggestAction model representas the actions to take depending on if the Fact is true or false.
-     * on if the Fact is true or false.
      *
      */
     class SuggestAction
@@ -161,8 +160,7 @@ namespace obelisk
             void setFalseAction(obelisk::Action falseAction);
 
             /**
-             * @brief Select the SuggestAction from the KnowledgeBase by IDs of the
+             * @brief Select the SuggestAction from the KnowledgeBase by IDs of the sub-objects.
-             * sub-objects.
              *
              * @param[in] dbConnection The database connection to use.
              */

src/lib/models/verb.h

@@ -8,8 +8,7 @@
 namespace obelisk
 {
     /**
-     * @brief The Verb model represents a verb which is used to connnect
+     * @brief The Verb model represents a verb which is used to connnect entities.
-     * entities.
      *
      */
     class Verb

src/main.h

@@ -1,8 +1,7 @@
 #include <getopt.h>
 
 /**
- * @brief The obelisk namespace contains everything needed to compile obelisk.
+ * @brief The obelisk namespace contains everything needed to compile obelisk code.
- * code.
  *
  */
 namespace obelisk
@@ -38,6 +37,7 @@ Options:
 
     /**
      * @brief This is the main loop for obelisk.
+     *
      * This loop handles lexing and parsing of obelisk source code.
      *
      * @return int Returns EXIT_SUCCESS or EXIT_FAILURE.

src/parser.h

@@ -18,16 +18,14 @@
 namespace obelisk
 {
     /**
-     * @brief The Parser is responsible for analyzing the language's key words
+     * @brief The Parser is responsible for analyzing the language's key words and taking action based on its analysis.
-     * and taking action based on its analysis.
      *
      */
     class Parser
     {
         private:
             /**
-             * @brief The Lexer object that the Parser is using to Parse a
+             * @brief The Lexer object that the Parser is using to Parse a specific source file.
-             * specific source file.
              *
              */
             std::shared_ptr<obelisk::Lexer> lexer_;
@@ -45,69 +43,259 @@ namespace obelisk
              */
             void setCurrentToken(int currentToken);
 
+            /**
+             * @brief Log errors from the LLVM parsing.
+             *
+             * @param[in] str The error message.
+             * @return std::unique_ptr<obelisk::ExpressionAST> Returns the AST expression that caused the error.
+             */
             std::unique_ptr<obelisk::ExpressionAST> logError(const char* str);
+
+            /**
+             * @brief Log errors from the LLVM parsing involving the prototypes.
+             *
+             * @param[in] str The error message.
+             * @return std::unique_ptr<obelisk::PrototypeAST> Returns the AST for the prototype.
+             */
             std::unique_ptr<obelisk::PrototypeAST> logErrorPrototype(const char* str);
 
+            /**
+             * @brief The AST expression parser.
+             *
+             * @return std::unique_ptr<obelisk::ExpressionAST> Returns the parsed AST expression.
+             */
             std::unique_ptr<obelisk::ExpressionAST> parseExpression();
+
+            /**
+             * @brief The AST number expression parser.
+             *
+             * @return std::unique_ptr<obelisk::ExpressionAST> Returns the parsed AST expression.
+             */
             std::unique_ptr<obelisk::ExpressionAST> parseNumberExpression();
+
+            /**
+             * @brief The AST parenthesis expression parser.
+             *
+             * @return std::unique_ptr<obelisk::ExpressionAST> Returns the parsed AST expression.
+             */
             std::unique_ptr<obelisk::ExpressionAST> parseParenthesisExpression();
+
+            /**
+             * @brief The AST identifier expression parser.
+             *
+             * @return std::unique_ptr<obelisk::ExpressionAST> Returns the parsed AST expression.
+             */
             std::unique_ptr<obelisk::ExpressionAST> parseIdentifierExpression();
+
+            /**
+             * @brief The AST primary expression parser.
+             *
+             * @return std::unique_ptr<obelisk::ExpressionAST> Returns the parsed AST expression.
+             */
             std::unique_ptr<obelisk::ExpressionAST> parsePrimary();
+
+            /**
+             * @brief The AST prototype parser.
+             *
+             * @return std::unique_ptr<obelisk::PrototypeAST> Returns the parsed AST prototype expression.
+             */
             std::unique_ptr<obelisk::PrototypeAST> parsePrototype();
+
+            /**
+             * @brief The AST definition parser.
+             *
+             * @return std::unique_ptr<obelisk::FunctionAST> Returns the parsed AST definition expression.
+             */
             std::unique_ptr<obelisk::FunctionAST> parseDefinition();
+
+            /**
+             * @brief The AST top level expression parser.
+             *
+             * @return std::unique_ptr<obelisk::FunctionAST> Returns the parsed AST top level expression.
+             */
             std::unique_ptr<obelisk::FunctionAST> parseTopLevelExpression();
+
+            /**
+             * @brief The AST external definition parser.
+             *
+             * @return std::unique_ptr<obelisk::PrototypeAST> Returns the parsed AST external definition.
+             */
             std::unique_ptr<obelisk::PrototypeAST> parseExtern();
+
+            /**
+             * @brief Parse a SuggestAction.
+             *
+             * @param[out] suggestAction The parsed SuggestAction.
+             */
             void parseAction(obelisk::SuggestAction& suggestAction);
+
+            /**
+             * @brief Parse a Rule.
+             *
+             * @param[out] rule The parsed Rule.
+             */
             void parseRule(obelisk::Rule& rule);
+
+            /**
+             * @brief Parse Facts.
+             *
+             * @param[out] facts The parsed Facts.
+             */
             void parseFact(std::vector<obelisk::Fact>& facts);
 
         public:
+            /**
+             * @brief Construct a new Parser object.
+             *
+             * @param[in] lexer The lexer the parser uses to retrieve parts of the language.
+             */
             Parser(std::shared_ptr<obelisk::Lexer> lexer) :
                 lexer_(lexer)
             {
             }
 
+            /**
+             * @brief Get the Lexer.
+             *
+             * @return std::shared_ptr<obelisk::Lexer> Returns the current Lexer in use by the Parser.
+             */
             std::shared_ptr<obelisk::Lexer> getLexer();
+
+            /**
+             * @brief Set the Lexer to use during the parsing phase.
+             *
+             * @param[in] lexer The Lexer.
+             */
             void setLexer(std::shared_ptr<obelisk::Lexer> lexer);
 
+            /**
+             * @brief Gets the current token held inside the Lexer.
+             *
+             * @return int Returns the current token.
+             */
             int getCurrentToken();
 
+            /**
+             * @brief Instructs the Lexer to retrieve a new token.
+             *
+             * @return int Returns the next token.
+             */
             int getNextToken();
 
-            void handleDefinition();
+            /**
-            void handleExtern();
+             * @brief Parse the SuggestAction and then insert it into the KnowledgeBase.
-            void handleTopLevelExpression();
+             *
+             * @param[in] kb The KnowledgeBase to insert the SuggestAction into.
+             */
             void handleAction(std::unique_ptr<obelisk::KnowledgeBase>& kb);
+
+            /**
+             * @brief Parse the Rule and then insert it into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledgeBase to insert the Rule into.
+             */
             void handleRule(std::unique_ptr<obelisk::KnowledgeBase>& kb);
+
+            /**
+             * @brief Parse the Fact and then insert it into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledgeBase to insert the Fact into.
+             */
             void handleFact(std::unique_ptr<obelisk::KnowledgeBase>& kb);
 
+            /**
+             * @brief Helper used to insert an Entity into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledgeBase to use.
+             * @param[in,out] entity The Entity to insert. It will contain the ID of the Entity after inserting it.
+             */
             void insertEntity(std::unique_ptr<obelisk::KnowledgeBase>& kb, obelisk::Entity& entity);
+
+            /**
+             * @brief Helper used to insert a Verb into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledegeBase to use.
+             * @param[in,out] verb The Verb to insert. It will contain the ID of the Verb after inserting it.
+             */
             void insertVerb(std::unique_ptr<obelisk::KnowledgeBase>& kb, obelisk::Verb& verb);
+
+            /**
+             * @brief Helper used to insert an Action into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledgeBase to use.
+             * @param[in,out] action The Action to insert. It will contain the ID of the Action after inserting it.
+             */
             void insertAction(std::unique_ptr<obelisk::KnowledgeBase>& kb, obelisk::Action& action);
+
+            /**
+             * @brief Helper used to insert a Fact into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledgeBase to use.
+             * @param[in,out] fact The Fact to insert. It will contain the ID of the Fact after inserting it.
+             * @param[in] updateIsTrue If true, it will update the value of is_true in the KnowledgeBase if the Fact
+             * already exists.
+             */
             void insertFact(std::unique_ptr<obelisk::KnowledgeBase>& kb,
                 obelisk::Fact& fact,
                 bool updateIsTrue = false);
+
+            /**
+             * @brief Helper used to insert a SuggestAction into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledgeBase to use.
+             * @param[in,out] suggestAction The SuggestAction to insert. It will contain the ID of the SuggestAction
+             * after inserting it.
+             */
             void insertSuggestAction(std::unique_ptr<obelisk::KnowledgeBase>& kb,
                 obelisk::SuggestAction& suggestAction);
+
+            /**
+             * @brief Helper usedto insert a Rule into the KnowledgeBase.
+             *
+             * @param[in] kb The KnowledgeBase to use.
+             * @param[in,out] rule The Rule to insert. It will contain the ID of the Rule after inserting it.
+             */
             void insertRule(std::unique_ptr<obelisk::KnowledgeBase>& kb, obelisk::Rule& rule);
     };
 
+    /**
+     * @brief The exceptions thrown by the Parser.
+     *
+     */
     class ParserException : public std::exception
     {
         private:
+            /**
+             * @brief The error message.
+             *
+             */
             const std::string errorMessage_;
 
         public:
+            /**
+             * @brief Construct a new ParserException object.
+             *
+             */
             ParserException() :
                 errorMessage_("an unknown error ocurred")
             {
             }
 
+            /**
+             * @brief Construct a new ParserException object.
+             *
+             * @param[in] errorMessage The error message.
+             */
             ParserException(const std::string& errorMessage) :
                 errorMessage_(errorMessage)
             {
             }
 
+            /**
+             * @brief Return the error message as a C style string.
+             *
+             * @return const char* Returns the error message.
+             */
             const char* what() const noexcept
             {
                 return errorMessage_.c_str();