• Perl Best Practices
• Table of Contents
• Copyright
• Dedication
• Preface
• Contents of This Book
• Conventions Used in This Book
• Code Examples
• Feedback
• Acknowledgments
• Chapter 1.  Best Practices
• Section 1.1.  Three Goals
• Section 1.2.  This Book
• Section 1.3.  Rehabiting
• Chapter 2.  Code Layout
• Section 2.1.  Bracketing
• Section 2.2.  Keywords
• Section 2.3.  Subroutines and Variables
• Section 2.4.  Builtins
• Section 2.5.  Keys and Indices
• Section 2.6.  Operators
• Section 2.7.  Semicolons
• Section 2.8.  Commas
• Section 2.9.  Line Lengths
• Section 2.10.  Indentation
• Section 2.11.  Tabs
• Section 2.12.  Blocks
• Section 2.13.  Chunking
• Section 2.14.  Elses
• Section 2.15.  Vertical Alignment
• Section 2.16.  Breaking Long Lines
• Section 2.17.  Non-Terminal Expressions
• Section 2.18.  Breaking by Precedence
• Section 2.19.  Assignments
• Section 2.20.  Ternaries
• Section 2.21.  Lists
• Section 2.22.  Automated Layout
• Chapter 3.  Naming Conventions
• Section 3.1.  Identifiers
• Section 3.2.  Booleans
• Section 3.3.  Reference Variables
• Section 3.4.  Arrays and Hashes
• Section 3.5.  Underscores
• Section 3.6.  Capitalization
• Section 3.7.  Abbreviations
• Section 3.8.  Ambiguous Abbreviations
• Section 3.9.  Ambiguous Names
• Section 3.10.  Utility Subroutines
• Chapter 4.  Values and Expressions
• Section 4.1.  String Delimiters
• Section 4.2.  Empty Strings
• Section 4.3.  Single-Character Strings
• Section 4.4.  Escaped Characters
• Section 4.5.  Constants
• Section 4.6.  Leading Zeros
• Section 4.7.  Long Numbers
• Section 4.8.  Multiline Strings
• Section 4.9.  Here Documents
• Section 4.10.  Heredoc Indentation
• Section 4.11.  Heredoc Terminators
• Section 4.12.  Heredoc Quoters
• Section 4.13.  Barewords
• Section 4.14.  Fat Commas
• Section 4.15.  Thin Commas
• Section 4.16.  Low-Precedence Operators
• Section 4.17.  Lists
• Section 4.18.  List Membership
• Chapter 5.  Variables
• Section 5.1.  Lexical Variables
• Section 5.2.  Package Variables
• Section 5.3.  Localization
• Section 5.4.  Initialization
• Section 5.5.  Punctuation Variables
• Section 5.6.  Localizing Punctuation Variables
• Section 5.7.  Match Variables
• Section 5.8.  Dollar-Underscore
• Section 5.9.  Array Indices
• Section 5.10.  Slicing
• Section 5.11.  Slice Layout
• Section 5.12.  Slice Factoring
• Chapter 6.  Control Structures
• Section 6.1.  If Blocks
• Section 6.2.  Postfix Selectors
• Section 6.3.  Other Postfix Modifiers
• Section 6.4.  Negative Control Statements
• Section 6.5.  C-Style Loops
• Section 6.6.  Unnecessary Subscripting
• Section 6.7.  Necessary Subscripting
• Section 6.8.  Iterator Variables
• Section 6.9.  Non-Lexical Loop Iterators
• Section 6.10.  List Generation
• Section 6.11.  List Selections
• Section 6.12.  List Transformation
• Section 6.13.  Complex Mappings
• Section 6.14.  List Processing Side Effects
• Section 6.15.  Multipart Selections
• Section 6.16.  Value Switches
• Section 6.17.  Tabular Ternaries
• Section 6.18.  do-while Loops
• Section 6.19.  Linear Coding
• Section 6.20.  Distributed Control
• Section 6.21.  Redoing
• Section 6.22.  Loop Labels
• Chapter 7.  Documentation
• Section 7.1.  Types of Documentation
• Section 7.2.  Boilerplates
• Section 7.3.  Extended Boilerplates
• Section 7.4.  Location
• Section 7.5.  Contiguity
• Section 7.6.  Position
• Section 7.7.  Technical Documentation
• Section 7.8.  Comments
• Section 7.9.  Algorithmic Documentation
• Section 7.10.  Elucidating Documentation
• Section 7.11.  Defensive Documentation
• Section 7.12.  Indicative Documentation
• Section 7.13.  Discursive Documentation
• Section 7.14.  Proofreading
• Chapter 8.  Built-in Functions
• Section 8.1.  Sorting
• Section 8.2.  Reversing Lists
• Section 8.3.  Reversing Scalars
• Section 8.4.  Fixed-Width Data
• Section 8.5.  Separated Data
• Section 8.6.  Variable-Width Data
• Section 8.7.  String Evaluations
• Section 8.8.  Automating Sorts
• Section 8.9.  Substrings
• Section 8.10.  Hash Values
• Section 8.11.  Globbing
• Section 8.12.  Sleeping
• Section 8.13.  Mapping and Grepping
• Section 8.14.  Utilities
• Chapter 9.  Subroutines
• Section 9.1.  Call Syntax
• Section 9.2.  Homonyms
• Section 9.3.  Argument Lists
• Section 9.4.  Named Arguments
• Section 9.5.  Missing Arguments
• Section 9.6.  Default Argument Values
• Section 9.7.  Scalar Return Values
• Section 9.8.  Contextual Return Values
• Section 9.9.  Multi-Contextual Return Values
• Section 9.10.  Prototypes
• Section 9.11.  Implicit Returns
• Section 9.12.  Returning Failure
• Chapter 10.  I/O
• Section 10.1.  Filehandles
• Section 10.2.  Indirect Filehandles
• Section 10.3.  Localizing Filehandles
• Section 10.4.  Opening Cleanly
• Section 10.5.  Error Checking
• Section 10.6.  Cleanup
• Section 10.7.  Input Loops
• Section 10.8.  Line-Based Input
• Section 10.9.  Simple Slurping
• Section 10.10.  Power Slurping
• Section 10.11.  Standard Input
• Section 10.12.  Printing to Filehandles
• Section 10.13.  Simple Prompting
• Section 10.14.  Interactivity
• Section 10.15.  Power Prompting
• Section 10.16.  Progress Indicators
• Section 10.17.  Automatic Progress Indicators
• Section 10.18.  Autoflushing
• Chapter 11.  References
• Section 11.1.  Dereferencing
• Section 11.2.  Braced References
• Section 11.3.  Symbolic References
• Section 11.4.  Cyclic References
• Chapter 12.  Regular Expressions
• Section 12.1.  Extended Formatting
• Section 12.2.  Line Boundaries
• Section 12.3.  String Boundaries
• Section 12.4.  End of String
• Section 12.5.  Matching Anything
• Section 12.6.  Lazy Flags
• Section 12.7.  Brace Delimiters
• Section 12.8.  Other Delimiters
• Section 12.9.  Metacharacters
• Section 12.10.  Named Characters
• Section 12.11.  Properties
• Section 12.12.  Whitespace
• Section 12.13.  Unconstrained Repetitions
• Section 12.14.  Capturing Parentheses
• Section 12.15.  Captured Values
• Section 12.16.  Capture Variables
• Section 12.17.  Piecewise Matching
• Section 12.18.  Tabular Regexes
• Section 12.19.  Constructing Regexes
• Section 12.20.  Canned Regexes
• Section 12.21.  Alternations
• Section 12.22.  Factoring Alternations
• Section 12.23.  Backtracking
• Section 12.24.  String Comparisons
• Chapter 13.  Error Handling
• Section 13.1.  Exceptions
• Section 13.2.  Builtin Failures
• Section 13.3.  Contextual Failure
• Section 13.4.  Systemic Failure
• Section 13.5.  Recoverable Failure
• Section 13.6.  Reporting Failure
• Section 13.7.  Error Messages
• Section 13.8.  Documenting Errors
• Section 13.9.  OO Exceptions
• Section 13.10.  Volatile Error Messages
• Section 13.11.  Exception Hierarchies
• Section 13.12.  Processing Exceptions
• Section 13.13.  Exception Classes
• Section 13.14.  Unpacking Exceptions
• Chapter 14.  Command-Line Processing
• Section 14.1.  Command-Line Structure
• Section 14.2.  Command-Line Conventions
• Section 14.3.  Meta-options
• Section 14.4.  In-situ Arguments
• Section 14.5.  Command-Line Processing
• Section 14.6.  Interface Consistency
• Section 14.7.  Interapplication Consistency
• Chapter 15.  Objects
• Section 15.1.  Using OO
• Section 15.2.  Criteria
• Section 15.3.  Pseudohashes
• Section 15.4.  Restricted Hashes
• Section 15.5.  Encapsulation
• Section 15.6.  Constructors
• Section 15.7.  Cloning
• Section 15.8.  Destructors
• Section 15.9.  Methods
• Section 15.10.  Accessors
• Section 15.11.  Lvalue Accessors
• Section 15.12.  Indirect Objects
• Section 15.13.  Class Interfaces
• Section 15.14.  Operator Overloading
• Section 15.15.  Coercions
• Chapter 16.  Class Hierarchies
• Section 16.1.  Inheritance
• Section 16.2.  Objects
• Section 16.3.  Blessing Objects
• Section 16.4.  Constructor Arguments
• Section 16.5.  Base Class Initialization
• Section 16.6.  Construction and Destruction
• Section 16.7.  Automating Class Hierarchies
• Section 16.8.  Attribute Demolition
• Section 16.9.  Attribute Building
• Section 16.10.  Coercions
• Section 16.11.  Cumulative Methods
• Section 16.12.  Autoloading
• Chapter 17.  Modules
• Section 17.1.  Interfaces
• Section 17.2.  Refactoring
• Section 17.3.  Version Numbers
• Section 17.4.  Version Requirements
• Section 17.5.  Exporting
• Section 17.6.  Declarative Exporting
• Section 17.7.  Interface Variables
• Section 17.8.  Creating Modules
• Section 17.9.  The Standard Library
• Section 17.10.  CPAN
• Chapter 18.  Testing and Debugging
• Section 18.1.  Test Cases
• Section 18.2.  Modular Testing
• Section 18.3.  Test Suites
• Section 18.4.  Failure
• Section 18.5.  What to Test
• Section 18.6.  Debugging and Testing
• Section 18.7.  Strictures
• Section 18.8.  Warnings
• Section 18.9.  Correctness
• Section 18.10.  Overriding Strictures
• Section 18.11.  The Debugger
• Section 18.12.  Manual Debugging
• Section 18.13.  Semi-Automatic Debugging
• Chapter 19.  Miscellanea
• Section 19.1.  Revision Control
• Section 19.2.  Other Languages
• Section 19.3.  Configuration Files
• Section 19.4.  Formats
• Section 19.5.  Ties
• Section 19.6.  Cleverness
• Section 19.7.  Encapsulated Cleverness
• Section 19.8.  Benchmarking
• Section 19.9.  Memory
• Section 19.10.  Caching
• Section 19.11.  Memoization
• Section 19.12.  Caching for Optimization
• Section 19.13.  Profiling
• Section 19.14.  Enbugging
• Appendix A.  Essential Perl Best Practices
• Appendix B.  Perl Best Practices
• Section B.1.  Chapter 2, Code Layout
• Section B.2.  Chapter 3, Naming Conventions
• Section B.3.  Chapter 4, Values and Expressions
• Section B.4.  Chapter 5, Variables
• Section B.5.  Chapter 6, Control Structures
• Section B.6.  Chapter 7, Documentation
• Section B.7.  Chapter 8, Built-in Functions
• Section B.8.  Chapter 9, Subroutines
• Section B.9.  Chapter 10, I/O
• Section B.10.  Chapter 11, References
• Section B.11.  Chapter 12, Regular Expressions
• Section B.12.  Chapter 13, Error Handling
• Section B.13.  Chapter 14, Command-Line Processing
• Section B.14.  Chapter 15, Objects
• Section B.15.  Chapter 16, Class Hierarchies
• Section B.16.  Chapter 17, Modules
• Section B.17.  Chapter 18, Testing and Debugging
• Section B.18.  Chapter 19, Miscellanea
• Appendix C.  Editor Configurations
• Section C.1.  vim
• Section C.2.  vile
• Section C.3.  Emacs
• Section C.4.  BBEdit
• Section C.5.  TextWrangler
• Appendix D.  Recommended Modules and Utilities
• Section D.1.  Recommended Core Modules
• Section D.2.  Recommended CPAN Modules
• Section D.3.  Utility Subroutines
• Appendix Bibliography.  Bibliography
• Colophon
• About the Author
• Colophon
• Index
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