generate the parse function in the header from macros

include/osuparser.hpp

@@ -6,4 +6,74 @@ namespace fs = std::filesystem;
 
 #include <config.hpp>
 
-Difficulty parseDifficulty(fs::path difficultyPath);
+#define CONFIG(name, ...) name parse##name(fs::path configPath);
+#define SECTION(name, ...)
+
+#define VAR_UINT(section, name)
+#define VAR_UINT_D(section, name, default)
+
+#define VAR_INT(section, name)
+#define VAR_INT_D(section, name, default)
+
+#define VAR_STRING(section, name)
+#define VAR_STRING_D(section, name, default)
+
+#define VAR_BOOL(section, name)
+#define VAR_BOOL_D(section, name, default)
+
+#define VAR_FLOAT(section, name)
+#define VAR_FLOAT_D(section, name, default)
+
+#define VAR_COLOUR(section, name)
+#define VAR_COLOUR_D(section, name, default)
+
+#define ENUM(name, ...)
+#define VAR_ENUM(section, name, enum_type)
+#define VAR_ENUM_D(section, name, enum_type, default)
+
+#define STRUCT_STREAM_OPS(name, ...)
+
+#define STRUCT(name, ...)
+#define VAR_STRUCT(section, name, struct_type)
+#define VAR_STRUCT_D(section, name, struct_type, default)
+
+#define VAR_LIST(section, name, type)
+#define VAR_LIST_SEP(section, name, type, sep)
+#define VAR_LIST_NUMBERED(section, name, type)
+
+#include <config_def.hpp>
+
+#undef CONFIG
+#undef SECTION
+
+#undef VAR_UINT
+#undef VAR_UINT_D
+
+#undef VAR_INT
+#undef VAR_INT_D
+
+#undef VAR_STRING
+#undef VAR_STRING_D
+
+#undef VAR_BOOL
+#undef VAR_BOOL_D
+
+#undef VAR_FLOAT
+#undef VAR_FLOAT_D
+
+#undef VAR_COLOUR
+#undef VAR_COLOUR_D
+
+#undef ENUM
+#undef VAR_ENUM
+#undef VAR_ENUM_D
+
+#undef STRUCT_STREAM_OPS
+
+#undef STRUCT
+#undef VAR_STRUCT
+#undef VAR_STRUCT_D
+
+#undef VAR_LIST
+#undef VAR_LIST_SEP
+#undef VAR_LIST_NUMBERED