really thin Lua wrapper for RageFile

maybe not the best way but so far thats only one i could find which works

usage:

local f = RageFileUtil.CreateRageFile();

if f:Open("test.txt", 2) then -- 2 means write, 1 - read (from RageFile.h) maybe those need some lua enum?
        f:PutLine("test text line");
        f:Close();
end;
f:destroy();

stepmania/src/RageFile.cpp

@@ -302,6 +302,88 @@ int32_t FileReading::read_32_le( RageFileBasic &f, RString &sError )
 		return 0;
 }
 
+// lua start
+#include "LuaBinding.h"
+
+class LunaRageFile: public Luna<RageFile>
+{
+public:
+	static int destroy( T* p, lua_State *L )
+	{
+		SAFE_DELETE(p);
+		return 1;
+	}
+
+	static int Open( T* p, lua_State *L )
+	{
+		lua_pushboolean( L, p->Open( SArg(1), IArg(2) ) );
+		return 1;
+	}
+
+	static int Close( T* p, lua_State *L )
+	{
+		p->Close();
+		return 1;
+	}
+
+	static int Write( T* p, lua_State *L )
+	{
+		lua_pushinteger( L, p->Write( SArg(1) ) );
+		return 1;
+	}
+
+	static int Read( T* p, lua_State *L )
+	{
+		RString string;
+		p->Read(string);
+		lua_pushstring( L, string );
+		return 1;
+	}
+
+	static int GetLine( T* p, lua_State *L )
+	{
+		RString string;
+		p->GetLine(string);
+		lua_pushstring( L, string );
+		return 1;
+	}
+
+	static int PutLine( T* p, lua_State *L )
+	{
+		lua_pushinteger( L, p->PutLine( SArg(1) ) );
+		return 1;
+	}
+
+	LunaRageFile() 
+	{
+		ADD_METHOD( Open );
+		ADD_METHOD( Close );
+		ADD_METHOD( Write );
+		ADD_METHOD( Read );
+		ADD_METHOD( GetLine );
+		ADD_METHOD( PutLine );
+		ADD_METHOD( destroy );
+	}
+};
+
+LUA_REGISTER_CLASS( RageFile )
+
+namespace RageFileUtil
+{
+	int CreateRageFile( lua_State *L )
+	{
+		RageFile *pFile = new RageFile;
+		pFile->PushSelf( L );
+		return 1;
+	}
+	const luaL_Reg RageFileUtilTable[] =
+	{
+		LIST_METHOD( CreateRageFile ),
+		{ NULL, NULL }
+	};
+	LUA_REGISTER_NAMESPACE( RageFileUtil );
+}
+
 /*
  * Copyright (c) 2003-2004 Glenn Maynard, Chris Danford, Steve Checkoway
  * All rights reserved.

stepmania/src/RageFile.h

@@ -4,6 +4,7 @@
 #define RAGE_FILE_H
 
 #include "RageFileBasic.h"
+struct lua_State;
 
 /* This is the high-level interface, which interfaces with RageFileObj implementations
  * and RageFileManager. */
@@ -70,6 +71,8 @@ public:
 	void EnableCRC32( bool on=true );
 	bool GetCRC32( uint32_t *iRet );
 
+	// Lua
+	virtual void PushSelf( lua_State *L );
 private:
 	void SetError( const RString &err );