Ruby by Example. Concepts and Code

Acknowledgments
Introduction: What Is Ruby?
	Acquiring and Configuring Ruby
		On a Unix or Unix-like System
		On a Windows System
	Motivations for the Book
		Conventions
		Summary of Chapters
1: Interactive Ruby and the Ruby Environment
	Starting irb
	Using irb
		Expressions
		Everything Is an Object
		Integers, Fixnums, and Bignums
		Addition, Concatenation, and Exceptions
		Casting
		Arrays
		Booleans
		Flow Control
		Methods
		Variables
		Constants
	Using the Ruby Interpreter and Environment
2: Amusements and Simple Utilities
	#1 Is It Payday? (check_payday.rb)
		The Code
		How It Works
		The Results
	#2 Random Signature Generator (random_sig.rb and random_sig-windows.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#3 The 99 Bottles of Beer Song (99bottles.rb)
		The Code
		How It Works
		Running the Script
		The Results
	#4 Sound File Player (shuffle_play.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	Chapter Recap
3:Programmer Utilities
	#5 What Is Truth? (boolean_golf.rb)
		The Code
		How It Works
		Hacking the Script
		Running the Script
		The Results
	#6 Making a List (array_join.rb)
		The Code
		How It Works
		Running the Script
		Hacking the Script
	#7 Command-Line Interface (uses_cli.rb and simple_cli.rb)
		The Code
		How It Works
		Running the Script
		Hacking the Script
	#8 Palindromes (palindrome.rb and palindrome2.rb)
		The Code
		How It Works
		Hacking the Script
		Running the Script
		The Results
	Chapter Recap
4: Text Manipulation
	#9 End-of-Line Conversion (dos2unix.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#10 Showing Line Numbers (line_num.rb)
		The Code
		How It Works
		Running the Script
		The Results
	#11 Wrapping Lines of Text (softwrap.rb)
		The Code
		Running the Script
		The Results
		Hacking the Script
	#12 Counting Words in a File (word_count.rb)
		The Code
		How It Works
		Running the Script
		The Results
	#13 Word Histogram (most_common_words.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#14 Rotating Characters in a String (rotate.rb)
		The Code
		How It Works
		Running the Script
		The Results
	Chapter Recap
5: Number Utilities
	#15 Computing Powers (power_of.rb)
		The Code
		How It Works
		Running the Script
		The Results
	#16 Adding Commas to Numbers (commify.rb)
		Inheritance
		Modules
		The Code
		How It Works
		Running the Script
		The Results
	#17 Roman Numerals (roman_numeral.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#18 Currency Conversion, Basic (currency_converter1.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#19 Currency Conversion, Advanced (currency_converter2.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	Chapter Recap
6: Functionalism with Blocks and Procs
	#20 Our First lambda (make_incrementer.rb)
		The Code
		How It Works
		The Results
	#21 Using Procs for Filtering (matching_members.rb)
		The Code
		How It Works
		Running the Script
		The Results
	#22 Using Procs for Compounded Filtering (matching_compound_members.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	#23 Returning Procs as Values (return_proc.rb)
		The Code
		The Results
		How It Works
	#24 Nesting lambdas
		The Code
		How It Works
	#25 Procs for Text (willow_and_anya.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	Chapter Recap
7: Using, Optimizing, and Testing Functional Techniques
	#26 Basic Factorials and Fibonaccis (factorial1.rb through fibonacci5.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	#27 Benchmarking and Profiling (tests/test_opts.rb)
		Benchmarking
		The Code
		How It Works
		Running the Script
		The Results
		Profiling
		Hacking the Script
	#28 Converting Temperatures (temperature_converter.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	#29 Testing temperature_converter.rb (tests/ test_temp_converter.rb)
		The Code
		The Results
		How It Works
		Hacking the Script
	Chapter Recap
8: HTML and XML Tools
	#30 Cleaning Up HTML (html_tidy.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#31 Counting Tags (xml_tag_counter.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#32 Extracting Text from XML (xml_text_extractor.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#33 Validating XML (xml_well_formedness_checker.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	Chapter Recap
9: More Complex Utilities and Tricks, Part I
	#34 Finding Codes in the Bible or Moby-Dick (els_parser.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#35 Mutating Strings into Weasels (methinks.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	#36 Mutating the Mutation of Strings into Weasels (methinks_meta.rb)
		The Code
		How It Works
		Running the Script
		The Results
		Hacking the Script
	Chapter Recap
10: More Complex Utilities and Tricks, Part II
	#37 Overnight DJ (radio_player1.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	#38 Better Overnight DJ (radio_player2.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	#39 Numbers by Name (to_lang.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	#40 Elegant Maps and Injects (symbol.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	Chapter Recap
11: CGI and the Web
	Common Gateway Interface
	Preparation and Installation
	#41 A Simple CGI Script (simple_cgi.rb)
		The Code
		How It Works
		The Results
		Hacking the Script
	#42 Mod Ruby (mod_ruby_demo.rhtml and mod_ruby_demo.conf)
		The Code
		How It Works
		The Results
		Hacking the Script
	#43 CSS Stylesheets, Part I (stylesheet.rcss)
		The Code
		How It Works
		The Results
		Hacking the Script
	#44 CSS Stylesheets, Part II (stylesheet2.rcss)
		The Code
		How It Works
		The Results
		Hacking the Script
	Chapter Recap
12: RubyGems and Rails Preparation
	RubyGems
		Installing RubyGems
		Using RubyGems
	Rails Preparation
		What Is Rails?
		Other Options for Installing Rails
		Databases
		The Structure of a Rails Application
	Chapter Recap
13: A Simple Rails Project
	Creating the Application
		Initial Creation
		Preparing the Database
		Adding Data
		Creating the Model and Controllers
	Dissecting the Application
		Dissecting the Photo Model
		Dissecting the Controllers
		Dissecting the Helpers
		Dissecting the Album Controller’s Views
		Dissecting the Feed Controller’s images View
		Dissecting the Album Controller’s Layout
		Using CSS
	Using the Application
	Learning More About Rails
	Chapter Recap
How Does Ruby Compare to Other Languages?
	C
	Haskell
	Java
	Lisp
	Perl
	PHP
	Python
	Smalltalk
	Summary of Ruby vs. Other Languages
Index
Updates