Table of Contents

1 Introduction.- 1.1 Introduction.- 1.2 The Aim of this Book.- 1.3 The Organisation of this Book.- 2 Object-Oriented Programming.- 2.1 Introduction.- 2.2 Encapsulation and Abstraction.- 2.3 Classes and Inheritance.- 2.3.1 Classes.- 2.3.2 Inheritance.- 2.4 Abstract and Concrete Classes.- 2.5 Methods and Overloading.- 2.6 Static and Dynamic Binding.- 2.7 Building Object-Oriented Programs.- 3 An Example Dylan Program.- 3.1 Introduction.- 3.2 Specification.- 3.3 Amounts and Time.- 3.4 Quantities.- 3.5 Foodstuffs.- 3.6 The Database Structure.- 3.7 The Shopping Database.- 3.8 The Shopping List.- 3.9 Main.- 4 Basic Types.- 4.1 Introduction.- 4.2 Booleans.- 4.3 Characters.- 4.4 Strings.- 4.5 Symbols.- 4.6 Numbers.- 4.6.1 Properties.- 4.6.2 Arithmetic Functions.- 4.7 Vectors.- 4.8 Lists.- 4.9 Comparison Operations.- 5 Expressions and Assignment.- 5.1 Introduction.- 5.2 Types and Variables.- 5.2.1 Types.- 5.2.2 Variables.- 5.3 Assignment Expressions.- 5.4 Conditional Expressions.- 5.4.1 If.- 5.4.2 Unless.- 5.4.3 Case.- 5.4.4 Select.- 5.5 Iteration.- 5.5.1 While.- 5.5.2 Until.- 5.5.3 For.- 5.6 Local Bindings.- 5.7 Multiple Values.- 5.7.1 Returning Multiple Values.- 5.7.2 Binding Multiple Values.- 5.8 Blocks and Exits.- 5.8.1 Begin-End Blocks.- 5.8.2 Blocks.- 5.8.3 Restrictions on Non-Local Exits.- 6 Methods and Generic Functions.- 6.1 Introduction.- 6.2 The Reason for Using Methods.- 6.3 Named Methods.- 6.3.1 Syntax.- 6.3.2 Methods—Examples.- 6.3.3 Parameters.- 6.4 Bare Methods.- 6.5 Local Methods.- 6.6 Higher-Order Methods.- 6.7 Generic Functions.- 6.7.1 Syntax.- 6.7.2 Parameter List Congruency.- 6.8 Operations on Functions.- 7 Classes, Instances and Inheritance.- 7.1 Introduction.- 7.2 A Simple Example.- 7.3 Class Definitions.- 7.3.1 Class Definition: Basics.- 7.3.2 Slot Definitions: Details.- 7.4 Instance Creation.- 7.4.1 Basic Mechanisms.- 7.4.2 Keyword Initialisation.- 7.4.3 Class Allocated Slots.- 7.4.4 Testing the Initialisation of a Slot.- 7.5 Inheritance.- 7.5.1 Inheritance and the Class Precedence List.- 7.5.2 Singletons.- 7.5.3 Method Specificity.- 7.5.4 Calling More General Methods.- 7.6 Classes and Types.- 7.7 Introspecting on Classes and Functions.- 7.8 Control of Dynamism.- 8 Conditions and Errors.- 8.1 Introduction.- 8.2 The Dylan Exception Facility.- 8.3 Specification.- 8.3.1 Format Strings.- 8.3.2 Condition Classes.- 8.3.3 The signal Function.- 8.3.4 Basic Handler.- 8.3.5 Other Signalling Operators.- 8.3.6 Introspection on Conditions and Handlers.- 9 Modules and Libraries.- 9.1 Introduction.- 9.2 Modules.- 9.3 Libraries.- A Example Program Listing.- A.l Introduction.- A.2 Money.- A.3 Time.- A.4 Physical Quantities.- A.5 Foodstuffs.- A.6 Food-table and The Database.- A.7 Shopping.- A.8 Shopping Lists.- A.9 The Main Method.