Learning Perl, 5th Edition
Learning Perl, 5th Edition
ISBN: 0596520107
EAN: 2147483647
EAN: 2147483647
Year: 2001
Pages: 205
Pages: 205
- Copyright
- Preface
- Typographical Conventions
- How to Contact Us
- Code Examples
- History of This Book
- Acknowledgments
- Chapter 1. Introduction
- Questions and Answers
- What Does Perl Stand For?
- How Can I Get Perl?
- How Do I Make a Perl Program?
- A Whirlwind Tour of Perl
- Exercises
- Chapter 2. Scalar Data
- What Is Scalar Data?
- Numbers
- Strings
- Perl s Built-in Warnings
- Scalar Variables
- Output with print
- The if Control Structure
- Getting User Input
- The chomp Operator
- The while Control Structure
- The undef Value
- The defined Function
- Exercises
- Chapter 3. Lists and Arrays
- Accessing Elements of an Array
- Special Array Indices
- List Literals
- List Assignment
- Interpolating Arrays into Strings
- The foreach Control Structure
- Perl s Favorite Default:
- Scalar and List Context
- STDIN in List Context
- Exercises
- Chapter 4. Subroutines
- System and User Functions
- Defining a Subroutine
- Invoking a Subroutine
- Return Values
- Arguments
- Private Variables in Subroutines
- The local Operator
- Variable-length Parameter Lists
- Notes on Lexical (my) Variables
- The use strict Pragma
- The return Operator
- Exercises
- Chapter 5. Hashes
- What Is a Hash?
- Hash Element Access
- Hash Functions
- Typical Use of a Hash
- Exercises
- Chapter 6. IO Basics
- Input from Standard Input
- Input from the Diamond Operator
- The Invocation Arguments
- Output to Standard Output
- Formatted Output with printf
- Exercises
- Chapter 7. Concepts of Regular Expressions
- What Are Regular Expressions?
- Using Simple Patterns
- A Pattern Test Program
- Exercises
- Chapter 8. More About Regular Expressions
- Character Classes
- General Quantifiers
- Anchors
- Memory Parentheses
- Precedence
- Exercises
- Chapter 9. Using Regular Expressions
- Matches with m
- Option Modifiers
- The Binding Operator,
- Interpolating into Patterns
- The Match Variables
- Substitutions with s
- The split Operator
- The join Function
- Exercises
- Chapter 10. More Control Structures
- The unless Control Structure
- The until Control Structure
- Expression Modifiers
- The Naked Block Control Structure
- The elsif Clause
- Autoincrement and Autodecrement
- The for Control Structure
- Loop Controls
- Logical Operators
- Exercise
- Chapter 11. Filehandles and File Tests
- What Is a Filehandle?
- Opening a Filehandle
- Fatal Errors with die
- Using Filehandles
- Reopening a Standard Filehandle
- File Tests
- Exercises
- Chapter 12. Directory Operations
- Moving Around the Directory Tree
- Globbing
- An Alternate Syntax for Globbing
- Directory Handles
- Recursive Directory Listing
- Exercises
- Chapter 13. Manipulating Files and Directories
- Removing Files
- Renaming Files
- Links and Files
- Making and Removing Directories
- Modifying Permissions
- Changing Ownership
- Changing Timestamps
- Using Simple Modules
- Exercises
- Chapter 14. Process Management
- The system Function
- The exec Function
- The Environment Variables
- Using Backquotes to Capture Output
- Processes as Filehandles
- Getting Down and Dirty with Fork
- Sending and Receiving Signals
- Exercises
- Chapter 15. Strings and Sorting
- Finding a Substring with index
- Manipulating a Substring with substr
- Formatting Data with sprintf
- Advanced Sorting
- Exercises
- Chapter 16. Simple Databases
- DBM Files and DBM Hashes
- Manipulating Data with pack and unpack
- Fixed-length Random-access Databases
- Variable-length (Text) Databases
- Exercises
- Chapter 17. Some Advanced Perl Techniques
- Trapping Errors with eval
- Picking Items from a List with grep
- Transforming Items from a List with map
- Unquoted Hash Keys
- More Powerful Regular Expressions
- Slices
- Exercise
- Appendix A. Exercise Answers
- Answers to Chapter 2 Exercises
- Answers to Chapter 3 Exercises
- Answers to Chapter 4 Exercises
- Answers to Chapter 5 Exercises
- Answers to Chapter 6 Exercises
- Answers to Chapter 7 Exercises
- Answers to Chapter 8 Exercises
- Answers to Chapter 9 Exercises
- Answer to Chapter 10 Exercise
- Answer to Chapter 11 Exercise
- Answer to Chapter 12 Exercise
- Answer to Chapter 13 Exercise
- Answer to Chapter 14 Exercise
- Answer to Chapter 15 Exercise
- Answer to Chapter 16 Exercise
- Answer to Chapter 17 Exercise
- Appendix B. Beyond the Llama
- Further Documentation
- Regular expressions
- Packages
- Extending Perl s Functionality
- Some Important Modules
- Pragmas
- Databases
- Other Operators and Functions
- Mathematics
- Lists and Arrays
- Bits and Pieces
- Formats
- Networking and IPC
- Security
- Debugging
- The Common Gateway Interface (CGI)
- Command-Line Options
- Built in Variables
- Syntax Extensions
- References
- Tied Variables
- Operator Overloading
- Dynamic Loading
- Embedding
- Converting Other Languages to Perl
- Converting find Command Lines to Perl
- Command-line Options in Your Programs
- Embedded Documentation
- More Ways to Open Filehandles
- Locales and Unicode
- Threads and Forking
- Graphical User Interfaces (GUIs)
- And More...
Learning Perl, 5th Edition
ISBN: 0596520107
EAN: 2147483647
EAN: 2147483647
Year: 2001
Pages: 205
Pages: 205