Call function in another lisp file

Question

I have to write a game in Lisp. In order to make it clear, I wanted to split the code in different .lisp files.

How can I call a function out of a function in the ot

Answer 1

With Common Lisp I done it like this:

In file1.lisp I define a function sayHello and export that function under the package name helloLisp

(defpackage :helloLisp
    (:use :common-lisp)
    (:export #:sayHello))

(in-package :helloLisp)

(defun sayHello () (print "Hello!"))

In the file file2.lisp I require this file like that:

(require "helloLisp" "./file1.lisp")

(helloLisp:sayHello)

Tested with SBCL 1.4.11