xlua中LoadLuaTable函数的目的

public int LoadLuaTable(string search, string table, string patch)
{
    
    
	return LuaAPI.luaE_table(L, search, table, patch, 1);
}

打开lua的源码中5.3.5是找不到这个函数的。
这个函数是xlua的扩展，在上面的文件夹里，找到之后：

extern "C"
{
    
    
	
	int luaE_table(lua_State* L, const char* search_path, const char* table_path, const char* patch_path, unsigned char flag)
	{
    
    
		return	inner_load(L, search_path, table_path, patch_path, flag);
	}
}

int inner_load(lua_State * L, const char* search_path, const char* table_path, const char* patch_path, unsigned char flag)
{
    
    
	int result = 0;
	reader_flag = flag;
	string r_path = search_path;
	add_search_path(L, search_path, patch_path);
	r_path += "regist.lua.txt";
	result = luaL_dofile(L, r_path.c_str());
	lua_getglobal(L, "Tables");
	if (!lua_istable(L, -1))
	{
    
    

void add_search_path(lua_State * L, string search_path, string patch_path)
{
    
    
	string v;
	lua_getglobal(L, "package");
	lua_getfield(L, -1, "path");
	v.append(lua_tostring(L, -1));
	v.append(";" + patch_path + "lua/?.lua.txt");
	v.append(";" + search_path + "?.lua.txt");
	lua_pushstring(L, v.c_str());
	lua_setfield(L, -3, "path");
	lua_pop(L, 2);
}