static int lua_setCurrentDirectory(lua_State *l) {
if (lua_gettop(l) != 1) return luaL_error(l, "wrong number of arguments");
const char *path = luaL_checkstring(l, 1);
if(!path) return luaL_error(l, "Argument error: System.currentDirectory(file) takes a filename as string as argument.");
lua_getCurrentDirectory(l);
chdir(path);
return 1;
}
static int lua_setCurrentDirectory(lua_State *L)
{
const char *path = luaL_checkstring(L, 1);
if(!path) return luaL_error(L, "System.currentDirectory(file) takes a filename as a string argument.");
lua_getCurrentDirectory(L);
chdir(path);
return 1;
}
static int lua_curdir(lua_State *L) {
int argc = lua_gettop(L);
if(argc == 0) return lua_getCurrentDirectory(L);
if(argc == 1) return lua_setCurrentDirectory(L);
return luaL_error(L, "System.currentDirectory([file]) takes zero or one argument");
}
static int lua_curdir(lua_State *l) {
int argc = lua_gettop(l);
if(argc == 0) return lua_getCurrentDirectory(l);
if(argc == 1) return lua_setCurrentDirectory(l);
return luaL_error(l, "Argument error: System.currentDirectory([file]) takes zero or one argument.");
}