• Practical Perl Programming
• Contents
• Introduction to Perl
• What is Perl?
• Origins
• Similar to C?
• Cost and Licensing
• Installing Perl Installed
• Getting and Installing Perl
• Writing Perl Programs
• Creating the Program
• Invocation
• Comments in Your Program
• Further Reading/Information
• Numeric and String Literals
• Numeric Literals
• Example: Numbers
• String Literals
• Example: Single-Quoted Strings
• Example: Double-Quoted Strings
• Example: Back-Quoted Strings
• Variables
• Scalar Variables
• Defining Scalar Variables
• String Scalar Variables
• Arrays
• What is an Array?
• Literal Arrays
• Indexed Arrays
• Some Useful Array Functions
• Associative Arrays
• Associative Array Operators
• Operators
• The Binary Arithmetic Operators
• The Unary Arithmetic Operators
• The Logical Operators
• The Bitwise Operators
• Comparison operators for numbers and strings
• The Range Operator (..)
• The String Operators (. and x)
• Order of Precedence
• Perl Statements
• Understanding Expressions
• Statement Blocks
• Statement Blocks and Local Variables
• If/Unless statement
• The for statement
• The while/until statement
• The foreach statement
• Functions
• Using the Parameter Array (@_)
• Passing Parameters by Reference
• Scope of Variables
• Using a List as a Function Parameter
• Nesting Function Calls
• Using a Private Function
• String Functions
• Array Functions
• Summary
• References
• Reference Types
• Passing Parameters to Functions
• The ref() Function
• Example: Creating a Data Record
• Interpolating Functions Inside Double-Quoted Strings
• Summary
• Files -- Input and Output in Perl
• Some Files Are Standard
• Using the Diamond Operator (<>)
• File Test Operators
• File Functions
• Reading Directories
• Reading and Writing Files
• Binary Files
• Getting File Statistics
• Printing Revisited
• Regular Expressions
• What are regular Expressions
• Using Regular Expressions
• Special pattern matching character operators
• Backtracking
• Setting the Target Operator (Binding)
• Substitution
• The Matching Operator (m//)
• The Matching Options
• The Translation Operator (tr///)
• The Translation Options
• The Binding Operators
• Character Classes
• Quantifiers
• Pattern Memory
• Pattern Precedence
• Extension Syntax
• Pattern Examples
• Some Practical Examples
• Using the Match Operator
• Using the Substitution Operator
• Example: Using the Translation Operator
• Example: Using the Split() Function
• Reports
• Format Statements
• Field Lines
• Report Headings
• Special Variables
• What Are the Special Variables?
• Example: Using the DATA File Handle
• Example: Using the %ENV Variable
• Handling Errors and Signals
• Checking for Errors
• Using errno
• Using the || Logical Operator
• Using the die() Function
• Using the warn() Function
• Trapping Fatal Errors
• Using the eval() Function
• Signals
• How to Handle a Signal
• Objects in Perl
• What are objects?
• Classes
• Abtraction
• Polymorphism:Overriding Methods
• Encapsulation:Keeping Code and Data Together
• Objects in Perl
• Bless the Hash and Pass the Reference
• Initializing Properties
• Using Named Parameters in Constructors
• Inheritance: Perl Style
• Polymorphism
• One Class Can Contain Another
• Static Versus Regular Methods and Variables
• Perl Modules
• Module Constructors and Destructors
• The BEGIN Block
• The END Block
• Symbol Tables
• The use Compiler Directive
• Pragma in Perl
• The strict Pragma
• The Standard Modules
• strict, my() and Modules
• Module Examples
• The Carp Module
• The English Module
• The Env Module
• Debugging Perl
• Syntax Errors
• Common Syntax Errors
• Logic Errors
• Using the -w Command-Line Option
• Being Strict with Your Variables
• Stepping Through Your Script
• Displaying Information
• Examples: Using the n Command
• Using Breakpoints
• Creating Command Aliases
• Using the Debugger as an Interactive Interpreter
• Summary
• Perl Command-Line Options
• How Are the Options Specified?
• The Command-line Options
• Example uses of command-line options
• Using the -0 Option
• Using the -n and -p Options
• Using the -i Option
• Using the -s Option
• Summary
• Networking with Perl
• Sockets
• Clients and Servers
• The Server Side of a Conversation
• The Client Side of a Conversation
• Using the Time Service
• Sending Mail (SMTP)
• The MAIL Command
• The RCPT Command
• The DATA Command
• Reporting Undeliverable Mail
• Using Perl to Send Mail
• Receiving Mail (POP)
• Checking for Upness (Echo)
• Transferring Files (FTP)
• The World Wide Web (HTTP)
• CGI Programming in Perl
• CGI Scripting
• What is a CGI Script?
• Writing and Running CGI Scripts
• Why Use Perl for CGI?
• CGI Apps versus Java Applets
• Should You Use CGI Modules?
• How Does CGI Work?
• Calling Your CGI Program
• Beginning CGI Programming in Perl
• CGI Script Output
• A First Perl CGI Script
• Exectiion of CGI Programs
• Why Are File Permissions Important in UNIX?
• HTTP Headers
• CGI and Environment Variables
• URL Encoding
• Security
• CGIwrap and Security
• The Other Side of CGI:Input -- HTML Forms
• A Brief Overview of HTML
• Server-Side Includes
• Forms: Facilitating User Input and Interaction
• Forms and CGI: What are they?
• Some Example Forms
• The FORM Tag
• Entering Data
• The Submit Button
• Text Input
• Password
• Associating labels with text and password input
• Radio Buttons
• Checkboxes
• Assigning Initial Input Values to
• Select
• Textarea
• Hidden Input
• An Example Form
• HTML Forms as an Interface to Databases
• Further Information
• CGI Script Input: Accepting Input To Perl Scripts
• Accepting Input from the Browser
• Passing Data to a CGI Script
• A Simple Form CGI Script Call
• The Other Side -- receiving and processing information in CGI ( Perl) script
• cgi-lib.pl
• The cgi.pm module
• A Minimal Form Response CGI Perl Script
• Multiple argument input to a Perl CGI script
• Some Example Perl CGI Scripts
• RGBtoHex: an RGB to Hexidecimal Color Converter
• An Address Book Search Engine
• Creating a Guest Book
• A Web Page Counter
• Using Perl with Web Servers
• Server Log Files
• Reading a Log File In Perl
• Listing Access by Document
• Looking at the Status Code
• Existing Log File Analyzing Programs
• Creating Your Own CGI Log File
• Internet Resources
• Web Sites
• A Quick Quide to HTML
• Basic HTML Programming
• HTML
• Hypertext Terminology
• Creating HTML Documents
• Learning HTML
• Anatomy of Any HTML Document
• HTML Tags
• Basic HTML Page Structure
• Summary of Basic HTML Tags
• Bare-bones example of HTML
• Basic HTML Coding
• Head elements
• The Body Element
• Headings
• Paragraphs
• Comments
• Links and Anchors
• Linking to Other Documents
• Relative, Absolute and remote Links
• Anchors
• Lists
• Unordered or Bulleted lists
• Ordered or Numbered lists
• Glossary or Definition Lists
• Nesting Lists
• Preformatted Text
• In-Line Images
• External Images, Sounds, Video
• Things to remember when HTML programming
• Text Formatting with HTML
• Logical Character Formatting
• Physical Character formatting
• Special Characters
• Horizontal rules and Line breaks
• Fonts and Font Sizes
• Recommended Reading
• About this document ...

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