int luaW_open(lua_State *L)
int load_file(lua_State *L)
Loads a Lua file and pushes the contents on the stack.
int intf_read_file(lua_State *L)
Reads a file into a string, or a directory into a list of files therein.
int intf_have_file(lua_State *L)
Checks if a file exists (not necessarily a Lua script).
int intf_canonical_path(lua_State *L)