I like it... It’s nice and clean and simple and pretty. Nice stuff!

— Alan Kay

Cuis is a free Smalltalk-80 environment with a specific set of goals: being simple and powerful. It is also portable to any platform, fast and efficient.

You are reading the Cuis Book!

The Cuis Book ¶

Short Table of Contents

This book is for Cuis-Smalltalk (6.0#5608 or later), a free and modern implementation of the Smalltalk language and environment.

Copyright © 2020, 2021, 2022, 2023, 2024 H. Fernandes with K. Dickey & J. Vuletich
Thanks to Matt Armstrong, Ezequiel Birman, Vanessa Freudenberg, Michael Khol, Szabolcs Komáromi, David Lewis, John McGarey, Mariano Montone, Ricardo Pacheco, Barry Perryman, Tommy Pettersson, Bernhard Pieber, Will Plusnick, Mauro Rizzi, Stephen Smith, Ignacio Sniechowski & Mark Volkmann for the reviews of the book, suggestions and borrowed texts. Your help is very valuable.

Compilation : September 5, 2024

Documentation source: https://github.com/Cuis-Smalltalk/TheCuisBook

The contents of this book are protected under Creative Commons Attribution-ShareAlike 4.0 International.

You are free to:
Share – copy and redistribute the material in any medium or format
Adapt – remix, transform, and build upon the material for any purpose, even commercially.

Under the following terms:
Attribution. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
Share Alike. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

Complete license: https://creativecommons.org/licenses/by-sa/4.0/legalcode


• Preface:
• Beginnings:
• The Message Way of Life:
• Class - Model of Communicating Entities:
• The Collection Way of Life:
• Control Flow Messaging:
• Visual with Morph:
• The Fundamentals of Morph:
• Events:
• Code Management:
• Debug and Exception Handling:
• Sharing Cuis:
• Documents Copyright:
• Summary of Syntax:
• The Exercises:
• Solutions to the Exercises:
• The Examples:
• The Figures:
• Spacewar! Source Code:
• Indexes:
— The Detailed Node Listing — Beginnings
• Historical Context:
• Installing and configuring Cuis-Smalltalk:
• Writing your first scripts:
• Spacewar!:
The Message Way of Life
• Communicating entities:
• Message send definitions:
• Message to string entities:
• Messages to number entities:
• A brief introduction to the system Browser:
• Spacewar! models:
Class, Model of Communicating Entities
• Understanding Object Oriented Programming:
• Explore OOP from the Browser:
• Cuis system classes:
• Kernel-Numbers:
• Kernel-Text:
• Spacewar! States and Behaviors:
The Collection Way of Life
• String -- a particular collection:
• Fun with variables:
• Fun with collections:
• Collections detailed :
• SpaceWar! collections:
Control Flow Messaging
• Syntactic elements:
• Pseudo-variables:
• Method syntax:
• Block syntax:
• Control flow with block and message:
• Spacewar!'s methods:
Visual with Morph
• Installing a Package:
• Ellipse Morph:
• Submorph:
• A brief introduction to Inspectors:
• Building your specialized Morph:
• Spacewar! Morphs:
The Fundamentals of Morph
• Going Vector:
• A Clock Morph:
• Back to Spacewar! Morphs:
Events
• System Events:
• Overall Mechanism:
• Spacewar! Events:
Code Management
• The Image:
• The Change Log:
• The Change Set:
• The Package:
• Daily Workflow:
• Source Code File:
Debug and Exception Handling
• Inspecting the Unexpected:
• The Debugger:
• Halt!:
Sharing Cuis
• Golden Rules of the Smalltalk Guild :
• Refactoring to Improve Understanding:
Solutions to the Exercises
• Preface (Solutions):
• Smallltalk Philosophy (Solutions):
• The Message Way of Life (Solutions):
• Class -- model of Communicating Entities (Solutions):
• The Collection Way of Life (Solutions):
• Control Flow Messaging (Solutions):
• Visual with Morph (Solutions):
• The Fundamentals of Morph (Solutions):
• Events (Solutions):
• Code Management (Solutions):