Programming.Ruby.1.9.The.Pragmatic.Programmers.Guide.3rd.Edition.Apr.2009.ISBN.1934356085.pdf

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Programming Ruby 1.9
The Pragmatic Programmers’ Guide
Dave Thomas
with Chad Fowler
Andy Hunt
The Pragmatic Bookshelf
Raleigh, North Carolina
Dallas, Texas
 
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Copyright © 2010 The Pragmatic Programmers, LLC.
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No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means,
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Printed in the United States of America.
ISBN-10: 1-934356-08-5
ISBN-13: 978-1-934356-08-1
Printed on acid-free paper.
3.0 printing, November 2010
Version: 2010-11-15
Contents
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I
Facets of Ruby
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1
Getting Started
20
1.1
The Command Prompt
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1.2
Installing Ruby
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22
1.3
Running Ruby
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27
1.4
Ruby Documentation: RDoc and ri
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2
Ruby.new
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2.1
Ruby Is an Object-Oriented Language .
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32
2.2
Some Basic Ruby .
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2.3
Arrays and Hashes
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2.4
Symbols .
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39
2.5
Control Structures
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40
2.6
Regular Expressions
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41
2.7
Blocks and Iterators
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43
2.8
Reading and ’Riting
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45
2.9
Command-Line Arguments
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2.10
Onward and Upward
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CONTENTS
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3
Classes, Objects, and Variables
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3.1
Objects and Attributes
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3.2
Classes Working with Other Classes .
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3.3
Access Control
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58
3.4
Variables
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4
Containers, Blocks, and Iterators
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4.1
Arrays .
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63
4.2
Hashes
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4.3
Blocks and Iterators
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70
4.4
Containers Everywhere .
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5
Sharing Functionality: Inheritance, Modules, and Mixins
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5.1
Inheritance and Messages
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5.2
Modules .
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91
5.3
Mixins .
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93
5.4
Iterators and the Enumerable Module
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5.5
Composing Modules
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5.6
Inheritance, Mixins, and Design
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98
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Standard Types
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6.1
Numbers
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100
6.2
Strings .
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103
6.3
Ranges
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7
Regular Expressions
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7.1
What Regular Expressions Let You Do
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7.2
Ruby’s Regular Expressions
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112
7.3
Digging Deeper .
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7.4
Advanced Regular Expressions
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123
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More About Methods
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8.1
Defining a Method
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131
8.2
Calling a Method
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134
9
Expressions
139
9.1
Operator Expressions .
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9.2
Miscellaneous Expressions .
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141
9.3
Assignment
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142
9.4
Conditional Execution
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146
9.5
case Expressions
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150
9.6
Loops
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152
9.7
Variable Scope, Loops, and Blocks
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156
this copy is (3.0 printing, November 2010)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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