Intermediate Perl. Beyond The Basics of Learning Perl. 2nd Edition

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Autorzy:: Randal L. Schwartz, brian d foy, Tom Phoenix

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Stron:: 396
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This book picks up right where Learning Perl leaves off. With Intermediate Perl, you’ll graduate from short scripts to much larger programs, using features that make Perl a general-purpose language. This gentle but thorough guide introduces you to modules, complex data structures, and object-oriented programming.

Each chapter is small enough to be read in just an hour or two, ending with exercises to help you practice what you’ve learned. If you’re familiar with the material in Learning Perl and have the ambition to go further, Intermediate Perl will teach you most of the core Perl language concepts you need for writing robust programs on any platform.

Topics include:

Packages and namespaces
References and scoping, including regular expression references
Manipulating complex data structures
Object-oriented programming
Writing and using modules
Testing Perl code
Contributing to CPAN

Just like Learning Perl, material in this book closely follows the popular introductory Perl course the authors have taught since 1991. This second edition covers recent changes to the language up to version 5.14.

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Szczegóły książki

ISBN Ebooka:: 978-14-493-4380-4, 9781449343804
Data wydania ebooka:: 2012-07-26 Data wydania ebooka często jest dniem wprowadzenia tytułu do sprzedaży i może nie być równoznaczna z datą wydania książki papierowej. Dodatkowe informacje możesz znaleźć w darmowym fragmencie. Jeśli masz wątpliwości skontaktuj się z nami sklep@helion.pl.
Język publikacji:: angielski
Rozmiar pliku ePub:: 1.9MB
Rozmiar pliku Mobi:: 5.6MB

Kategorie:
Technologie webowe » Perl/CGI - Programowanie
Programowanie » Perl - Programowanie

Spis treści książki

Intermediate Perl
Foreword
Preface
- Structure of This Book
- Conventions Used in This Book
- Using Code Examples
- Safari Books Online
- How to Contact Us
- Acknowledgments
1. Introduction
- What Should You Know Already?
- strict and warnings
- Perl v5.14
  - A Note on Versions
- What About All Those Footnotes?
- Whats With the Exercises?
- How to Get Help
- What If Im a Perl Course Instructor?
- Exercises
2. Using Modules
- The Standard Distribution
- Exploring CPAN
- Using Modules
- Functional Interfaces
  - Selecting What to Import
- Object-Oriented Interfaces
  - A More Typical Object-Oriented Module: Math::BigInt
  - Fancier Output with Modules
- Whats in Core?
- The Comprehensive Perl Archive Network
- Installing Modules from CPAN
  - CPANminus
  - Installing Modules Manually
- Setting the Path at the Right Time
- Setting the Path Outside the Program
  - Extending @INC with PERL5LIB
  - Extending @INC on the Command Line
- local::lib
- Exercises
3. Intermediate Foundations
- List Operators
  - List Filtering with grep
  - Transforming Lists with map
- Trapping Errors with eval
- Dynamic Code with eval
- The do Block
- Exercises
4. Introduction to References
- Doing the Same Task on Many Arrays
- PeGS: Perl Graphical Structures
- Taking a Reference to an Array
- Dereferencing the Array Reference
- Getting Our Braces Off
- Modifying the Array
- Nested Data Structures
- Simplifying Nested Element References with Arrows
- References to Hashes
- Checking Reference Types
- Exercises
5. References and Scoping
- More than One Reference to Data
- What If That Was the Name?
- Reference Counting and Nested Data Structures
- When Reference Counting Goes Bad
- Creating an Anonymous Array Directly
- Creating an Anonymous Hash
- Autovivification
- Autovivification and Hashes
- Exercises
6. Manipulating Complex Data Structures
- Using the Debugger to View Complex Data
- Viewing Complex Data with Data::Dumper
  - Other Dumpers
- Marshalling Data
  - Storing Complex Data with Storable
  - YAML
  - JSON
- Using the map and grep Operators
- Applying a Bit of Indirection
- Selecting and Altering Complex Data
- Exercises
7. Subroutine References
- Referencing a Named Subroutine
- Anonymous Subroutines
- Callbacks
- Closures
- Returning a Subroutine from a Subroutine
- Closure Variables as Inputs
- Closure Variables as Static Local Variables
  - state Variables
- Finding Out Who We Are
  - Enchanting Subroutines
  - Dumping Closures
- Exercise
8. Filehandle References
- The Old Way
- The Improved Way
- Filehandles to Strings
  - Processing Strings Line by Line
- Collections of Filehandles
- IO::Handle and Friends
  - IO::File
  - IO::Scalar
  - IO::Tee
  - IO::Pipe
  - IO::Null and IO::Interactive
- Directory Handles
  - Directory Handle References
- Exercises
9. Regular Expression References
- Before Regular Expression References
- Precompiled Patterns
  - Regular Expression Options
  - Applying Regex References
- Regexes as Scalars
- Build Up Regular Expressions
- Regex-Creating Modules
  - Using Common Patterns
  - Assembling Regular Expressions
- Exercises
10. Practical Reference Tricks
- Fancier Sorting
- Sorting with Indices
- Sorting Efficiently
- The Schwartzian Transform
- Multilevel Sort with the Schwartzian Transform
- Recursively Defined Data
- Building Recursively Defined Data
- Displaying Recursively Defined Data
- Avoiding Recursion
  - The Breadth-First Solution
- Exercises
11. Building Larger Programs
- The Cure for the Common Code
- Inserting Code with eval
- Using do
- Using require
- The Problem of Namespace Collisions
- Packages as Namespace Separators
- Scope of a Package Directive
- Packages and Lexicals
- Package Blocks
- Exercises
12. Creating Your Own Perl Distribution
- Perls Two Build Systems
  - Inside Makefile.PL
  - Inside Build.PL
- Our First Distribution
  - h2xs
  - Module::Starter
  - Custom Templates
- Inside Your Perl Distribution
  - The META File
  - Adding Additional Modules
- Inside a Module
- Plain Ol Documentation
  - Pod Command Paragraphs
  - Pod Paragraphs
  - Pod Formatting Codes
  - Checking the Pod Format
- The Module Code
- Module Building Summary
  - Creating a Module::Build Distribution
  - Creating a ExtUtils::Makemaker Distribution
- Exercises
13. Introduction to Objects
- If We Could Talk to the Animals. . .
- Introducing the Method Invocation Arrow
- The Extra Parameter of Method Invocation
- Calling a Second Method to Simplify Things
- A Few Notes About @ISA
- Overriding the Methods
- Starting the Search from a Different Place
- The SUPER Way of Doing Things
- What to Do with @_
- Where We Are
- Our Barnyard Summary
- Exercises
14. Introduction to Testing
- Why Should We Test?
- The Perl Testing Process
  - Test Anywhere Protocol
- The Art of Testing
  - A Test Example
- The Test Harness
- The Standard Tests
  - Checking that Modules Compile
  - The Boilerplate Tests
  - The Pod Tests
- Adding Our First Tests
- Measuring Our Test Coverage
  - Subroutine Coverage
  - Statement Coverage
  - Branch Coverage
  - Conditional Coverage
- Exercises
15. Objects with Data
- A Horse Is a Horse, of Course of CourseOr Is It?
- Invoking an Instance Method
- Accessing the Instance Data
- How to Build a Horse
- Inheriting the Constructor
- Making a Method Work with Either Classes or Instances
- Adding Parameters to a Method
- More Interesting Instances
- A Horse of a Different Color
- Getting Our Deposit Back
- Dont Look Inside the Box
- Faster Getters and Setters
- Getters that Double as Setters
- Restricting a Method to Class Only or Instance Only
- Exercise
16. Some Advanced Object Topics
- UNIVERSAL Methods
- Testing Our Objects for Good Behavior
- The Last Resort
- Using AUTOLOAD for Accessors
- Creating Getters and Setters More Easily
- Multiple Inheritance
- Exercises
17. Exporter
- What use Is Doing
- Importing with Exporter
- @EXPORT and @EXPORT_OK
- Grouping with %EXPORT_TAGS
- Custom Import Routines
- Exercises
18. Object Destruction
- Cleaning Up After Ourselves
- Nested Object Destruction
- Beating a Dead Horse
- Indirect Object Notation
- Additional Instance Variables in Subclasses
- Using Class Variables
- Weakening the Argument
- Exercise
19. Introduction to Moose
- Making Animals with Moose
  - Roles Instead of Inheritance
  - Default Values
  - Constraining Values
  - Wrapping Methods
  - Read-Only Attributes
- Improving the Race Horse
- Further Study
- Exercises
20. Advanced Testing
- Skipping Tests
- Testing Object-Oriented Features
- Grouping Tests
- Testing Large Strings
- Testing Files
- Testing STDOUT or STDERR
- Using Mock Objects
- Writing Our Own Test::* Modules
- Exercises
21. Contributing to CPAN
- The Comprehensive Perl Archive Network
- Getting Prepared
- How PAUSE Works
  - The Indexer
  - Module Maintainers
- Before We Start Work
- Preparing the Distribution
  - Create or Update the README
  - Check the Build File
  - Update the Manifest
  - Increase the Version String
  - Test the Distribution
- Uploading the Distribution
- Testing on Multiple Platforms
- Announcing the Module
- Exercises
A. Answers to Exercises
- Answers for Chapter 1
  - Exercise 1
  - Exercise 2
- Answers for Chapter 2
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 3
  - Exercise 1
  - Exercise 2
- Answers for Chapter 4
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 5
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 6
  - Exercise 1
  - Exercise 2
- Answer for Chapter 7
  - Exercise 1
- Answers for Chapter 8
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 9
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 10
  - Exercise 1
  - Exercise 2
  - Exercise 3
  - Exercise 4
  - Exercise 5
- Answers for Chapter 11
  - Exercise 1
  - Exercise 2
- Answers for Chapter 12
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 13
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 14
  - Exercise 1
  - Exercise 2
  - Exercise 3
  - Exercise 4
  - Exercise 5
- Answer for Chapter 15
  - Exercise 1
- Answers for Chapter 16
  - Exercise 1
  - Exercise 2
- Answers for Chapter 17
  - Exercise 1
  - Exercise 2
  - Exercise 3
- Answers for Chapter 18
  - Exercise 1
- Answers for Chapter 19
  - Exercise 1
  - Exercise 2
- Answers for Chapter 20
  - Exercise 1
  - Exercise 2
- Answers for Chapter 21
  - Exercise 1
  - Exercise 2
  - Exercise 3
  - Exercise 4
  - Exercise 5
  - Exercise 6
  - Exercise 7
Index of Modules in this Book
Index
About the Authors
Colophon
Copyright

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