Perl Cookbook

Name: Perl Cookbook | Solutions & Examples for Perl Programmers
Brand: O'Reilly
Price: 41.99 EUR
Availability: OnlineOnly

Solutions & Examples for Perl Programmers

Tom Christiansen(Autor*in)

O'Reilly (Verlag)

Erschienen am 21. August 2003

900 Seiten

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978-0-596-51686-4 (ISBN)

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Beschreibung

Weitere Details

Weitere Ausgaben

Inhalt

Intro
Table of Contents
Foreword
Preface
What's in This Book
What's New in This Edition
Platform Notes
Other Books
Conventions Used in This Book
Programming Conventions
Typesetting Conventions
Documentation Conventions
We'd Like to Hear from You
Acknowledgments for the First Edition
Tom
Nat
Acknowledgments for the Second Edition
Tom
Nat
Strings
1.0 Introduction
The Universal Character Code
Unicode Support in Perl
1.1 Accessing Substrings
Problem
Solution
Discussion
See Also
1.2 Establishing a Default Value
Problem
Solution
Discussion
See Also
1.3 Exchanging Values Without Using Temporary Variables
Problem
Solution
Discussion
See Also
1.4 Converting Between Characters and Values
Problem
Solution
Discussion
See Also
1.5 Using Named Unicode Characters
Problem
Solution
Discussion
See Also
1.6 Processing a String One Character at a Time
Problem
Solution
Discussion
See Also
1.7 Reversing a String by Word or Character
Problem
Solution
Discussion
See Also
1.8 Treating Unicode Combined Characters as Single Characters
Problem
Solution
Discussion
See Also
1.9 Canonicalizing Strings with Unicode Combined Characters
Problem
Solution
Discussion
See Also
1.10 Treating a Unicode String as Octets
Problem
Solution
Discussion
See Also
1.11 Expanding and Compressing Tabs
Problem
Solution
Discussion
See Also
1.12 Expanding Variables in User Input
Problem
Solution
Discussion
See Also
1.13 Controlling Case
Problem
Solution
Discussion
See Also
1.14 Properly Capitalizing a Title or Headline
Problem
Solution
Discussion
See Also
1.15 Interpolating Functions and Expressions Within Strings
Problem
Solution
Discussion
See Also
1.16 Indenting Here Documents
Problem
Solution
Discussion
See Also
1.17 Reformatting Paragraphs
Problem
Solution
Discussion
See Also
1.18 Escaping Characters
Problem
Solution
Discussion
See Also
1.19 Trimming Blanks from the Ends of a String
Problem
Solution
Discussion
See Also
1.20 Parsing Comma-Separated Data
Problem
Solution
Discussion
See Also
1.21 Constant Variables
Problem
Solution
Discussion
See Also
1.22 Soundex Matching
Problem
Solution
Discussion
See Also
1.23 Program: fixstyle
1.24 Program: psgrep
Numbers
2.0 Introduction
2.1 Checking Whether a String Is a Valid Number
Problem
Solution
Discussion
See Also
2.2 Rounding Floating-Point Numbers
Problem
Solution
Discussion
See Also
2.3 Comparing Floating-Point Numbers
Problem
Solution
Discussion
See Also
2.4 Operating on a Series of Integers
Problem
Solution
Discussion
See Also
2.5 Working with Roman Numerals
Problem
Solution
Discussion
See Also
2.6 Generating Random Numbers
Problem
Solution
Discussion
See Also
2.7 Generating Repeatable Random Number Sequences
Problem
Solution
Discussion
See Also
2.8 Making Numbers Even More Random
Problem
Solution
Discussion
See Also
2.9 Generating Biased Random Numbers
Problem
Solution
Discussion
See Also
2.10 Doing Trigonometry in Degrees, Not Radians
Problem
Solution
Discussion
See Also
2.11 Calculating More Trigonometric Functions
Problem
Solution
Discussion
See Also
2.12 Taking Logarithms
Problem
Solution
Discussion
See Also
2.13 Multiplying Matrices
Problem
Solution
Discussion
See Also
2.14 Using Complex Numbers
Problem
Solution
Discussion
See Also
2.15 Converting Binary, Octal, and Hexadecimal Numbers
Problem
Solution
Discussion
See Also
2.16 Putting Commas in Numbers
Problem
Solution
Discussion
See Also
2.17 Printing Correct Plurals
Problem
Solution
Discussion
See Also
2.18 Program: Calculating Prime Factors
Dates and Times
3.0 Introduction
3.1 Finding Today's Date
Problem
Solution
Discussion
See Also
3.2 Converting DMYHMS to Epoch Seconds
Problem
Solution
Discussion
See Also
3.3 Converting Epoch Seconds to DMYHMS
Problem
Solution
Discussion
See Also
3.4 Adding to or Subtracting from a Date
Problem
Solution
Discussion
See Also
3.5 Difference of Two Dates
Problem
Solution
Discussion
See Also
3.6 Day in a Week/Month/Year or Week Number
Problem
Solution
Discussion
See Also
3.7 Parsing Dates and Times from Strings
Problem
Solution
Discussion
See Also
3.8 Printing a Date
Problem
Solution
Discussion
See Also
3.9 High-Resolution Timers
Problem
Solution
Discussion
See Also
3.10 Short Sleeps
Problem
Solution
Discussion
See Also
3.11 Program: hopdelta
Arrays
4.0 Introduction
4.1 Specifying a List in Your Program
Problem
Solution
Discussion
See Also
4.2 Printing a List with Commas
Problem
Solution
Discussion
See Also
4.3 Changing Array Size
Problem
Solution
Discussion
See Also
4.4 Implementing a Sparse Array
Problem
Solution
Discussion
See Also
4.5 Iterating Over an Array
Problem
Solution
Discussion
See Also
4.6 Iterating Over an Array by Reference
Problem
Solution
Discussion
See Also
4.7 Extracting Unique Elements from a List
Problem
Solution
Straightforward
Faster
Similar but with user function
Faster but different
Faster and even more different
Discussion
See Also
4.8 Finding Elements in One Array but Not Another
Problem
Solution
Straightforward implementation
More idiomatic version
Loopless version
Discussion
See Also
4.9 Computing Union, Intersection, or Difference of Unique Lists
Problem
Solution
Simple solution for union and intersection
More idiomatic version
Union, intersection, and symmetric difference
Indirect solution
Discussion
See Also
4.10 Appending One Array to Another
Problem
Solution
Discussion
See Also
4.11 Reversing an Array
Problem
Solution
Discussion
See Also
4.12 Processing Multiple Elements of an Array
Problem
Solution
Discussion
See Also
4.13 Finding the First List Element That Passes a Test
Problem
Solution
Discussion
See Also
4.14 Finding All Elements in an Array Matching Certain Criteria
Problem
Solution
Discussion
See Also
4.15 Sorting an Array Numerically
Problem
Solution
Discussion
See Also
4.16 Sorting a List by Computable Field
Problem
Solution
Discussion
See Also
4.17 Implementing a Circular List
Problem
Solution
Procedure
Discussion
See Also
4.18 Randomizing an Array
Problem
Solution
Discussion
See Also
4.19 Program: words
See Also
4.20 Program: permute
See Also
Hashes
5.0 Introduction
See Also
5.1 Adding an Element to a Hash
Problem
Solution
Discussion
See Also
5.2 Testing for the Presence of a Key in a Hash
Problem
Solution
Discussion
See Also
5.3 Creating a Hash with Immutable Keys or Values
Problem
Solution
Discussion
See Also
5.4 Deleting from a Hash
Problem
Solution
Discussion
See Also
5.5 Traversing a Hash
Problem
Solution
Discussion
See Also
5.6 Printing a Hash
Problem
Solution
Discussion
See Also
5.7 Retrieving from a Hash in Insertion Order
Problem
Solution
Discussion
See Also
5.8 Hashes with Multiple Values per Key
Problem
Solution
Discussion
See Also
5.9 Inverting a Hash
Problem
Solution
Discussion
See Also
5.10 Sorting a Hash
Problem
Solution
Discussion
See Also
5.11 Merging Hashes
Problem
Solution
Discussion
See Also
5.12 Finding Common or Different Keys in Two Hashes
Problem
Solution
Find common keys
Find keys from one hash that aren't in both
Discussion
See Also
5.13 Hashing References
Problem
Solution
Discussion
See Also
5.14 Presizing a Hash
Problem
Solution
Discussion
See Also
5.15 Finding the Most Common Anything
Problem
Solution
Discussion
See Also
5.16 Representing Relationships Between Data
Problem
Solution
Discussion
See Also
5.17 Program: dutree
Pattern Matching
6.0 Introduction
The Tricky Bits
Pattern-Matching Modifiers
Special Variables
6.1 Copying and Substituting Simultaneously
Problem
Solution
Discussion
See Also
6.2 Matching Letters
Problem
Solution
Discussion
See Also
6.3 Matching Words
Problem
Solution
Discussion
See Also
6.4 Commenting Regular Expressions
Problem
Solution
Discussion
See Also
6.5 Finding the Nth Occurrence of a Match
Problem
Solution
Discussion
See Also
6.6 Matching Within Multiple Lines
Problem
Solution
Discussion
See Also
6.7 Reading Records with a Separator
Problem
Solution
Discussion
See Also
6.8 Extracting a Range of Lines
Problem
Solution
Discussion
See Also
6.9 Matching Shell Globs as Regular Expressions
Problem
Solution
Discussion
See Also
6.10 Speeding Up Interpolated Matches
Problem
Solution
Discussion
See Also
6.11 Testing for a Valid Pattern
Problem
Solution
Discussion
See Also
6.12 Honoring Locale Settings in Regular Expressions
Problem
Solution
Discussion
See Also
6.13 Approximate Matching
Problem
Solution
Discussion
See Also
6.14 Matching from Where the Last Pattern Left Off
Problem
Solution
Discussion
See Also
6.15 Greedy and Non-Greedy Matches
Problem
Solution
Discussion
See Also
6.16 Detecting Doubled Words
Problem
Solution
Discussion
See Also
6.17 Matching Nested Patterns
Problem
Solution
Discussion
See Also
6.18 Expressing AND, OR, and NOT in a Single Pattern
Problem
Solution
Discussion
See Also
6.19 Matching a Valid Mail Address
Problem
Solution
Discussion
See Also
6.20 Matching Abbreviations
Problem
Solution
Discussion
See Also
6.21 Program: urlify
6.22 Program: tcgrep
6.23 Regular Expression Grab Bag
File Access
7.0 Introduction
Getting a Handle on the File
Standard Filehandles
I/O Operations
7.1 Opening a File
Problem
Solution
Discussion
See Also
7.2 Opening Files with Unusual Filenames
Problem
Solution
Discussion
See Also
7.3 Expanding Tildes in Filenames
Problem
Solution
Discussion
See Also
7.4 Making Perl Report Filenames in Error Messages
Problem
Solution
Discussion
See Also
7.5 Storing Filehandles into Variables
Problem
Solution
Discussion
See Also
7.6 Writing a Subroutine That Takes Filehandles as Built-ins Do
Problem
Solution
Discussion
See Also
7.7 Caching Open Output Filehandles
Problem
Solution
Discussion
See Also
7.8 Printing to Many Filehandles Simultaneously
Problem
Solution
Discussion
See Also
7.9 Opening and Closing File Descriptors by Number
Problem
Solution
Discussion
See Also
7.10 Copying Filehandles
Problem
Solution
Discussion
See Also
7.11 Creating Temporary Files
Problem
Solution
Discussion
See Also
7.12 Storing a File Inside Your Program Text
Problem
Solution
Discussion
See Also
7.13 Storing Multiple Files in the DATA Area
Problem
Solution
Discussion
See Also
7.14 Writing a Unix-Style Filter Program
Problem
Solution
Discussion
Behavior
Command-line options
See Also
7.15 Modifying a File in Place with a Temporary File
Problem
Solution
Discussion
See Also
7.16 Modifying a File in Place with the -i Switch
Problem
Solution
Discussion
See Also
7.17 Modifying a File in Place Without a Temporary File
Problem
Solution
Discussion
See Also
7.18 Locking a File
Problem
Solution
Discussion
See Also
7.19 Flushing Output
Problem
Solution
Discussion
See Also
7.20 Doing Non-Blocking I/O
Problem
Solution
Discussion
See Also
7.21 Determining the Number of Unread Bytes
Problem
Solution
Discussion
See Also
7.22 Reading from Many Filehandles Without Blocking
Problem
Solution
Discussion
See Also
7.23 Reading an Entire Line Without Blocking
Problem
Solution
Discussion
See Also
7.24 Program: netlock
7.25 Program: lockarea
File Contents
8.0 Introduction
Basic Operations
Newlines
I/O Layers
Advanced Operations
8.1 Reading Lines with Continuation Characters
Problem
Solution
Discussion
See Also
8.2 Counting Lines (or Paragraphs or Records) in a File
Problem
Solution
Discussion
See Also
8.3 Processing Every Word in a File
Problem
Solution
Discussion
See Also
8.4 Reading a File Backward by Line or Paragraph
Problem
Solution
Discussion
See Also
8.5 Trailing a Growing File
Problem
Solution
Discussion
See Also
8.6 Picking a Random Line from a File
Problem
Solution
Discussion
See Also
8.7 Randomizing All Lines
Problem
Solution
Discussion
See Also
8.8 Reading a Particular Line in a File
Problem
Solution
Discussion
See Also
8.9 Processing Variable-Length Text Fields
Problem
Solution
Discussion
See Also
8.10 Removing the Last Line of a File
Problem
Solution
Discussion
See Also
8.11 Processing Binary Files
Problem
Solution
Discussion
See Also
8.12 Using Random-Access I/O
Problem
Solution
Discussion
See Also
8.13 Updating a Random-Access File
Problem
Solution
Discussion
See Also
8.14 Reading a String from a Binary File
Problem
Solution
Discussion
See Also
8.15 Reading Fixed-Length Records
Problem
Solution
Discussion
See Also
8.16 Reading Configuration Files
Problem
Solution
Discussion
See Also
8.17 Testing a File for Trustworthiness
Problem
Solution
Discussion
See Also
8.18 Treating a File as an Array
Problem
Solution
Discussion
See Also
8.19 Setting the Default I/O Layers
Problem
Solution
Discussion
See Also
8.20 Reading or Writing Unicode from a Filehandle
Problem
Solution
Discussion
See Also
8.21 Converting Microsoft Text Files into Unicode
Problem
Solution
Discussion
See Also
8.22 Comparing the Contents of Two Files
Problem
Solution
Discussion
See Also
8.23 Pretending a String Is a File
Problem
Solution
Discussion
See Also
8.24 Program: tailwtmp
8.25 Program: tctee
8.26 Program: laston
8.27 Program: Flat File Indexes
Directories
9.0 Introduction
Executive Summary
9.1 Getting and Setting Timestamps
Problem
Solution
Discussion
See Also
9.2 Deleting a File
Problem
Solution
Discussion
See Also
9.3 Copying or Moving a File
Problem
Solution
Discussion
See Also
9.4 Recognizing Two Names for the Same File
Problem
Solution
Discussion
See Also
9.5 Processing All Files in a Directory
Problem
Solution
Discussion
See Also
9.6 Globbing, or Getting a List of Filenames Matching a Pattern
Problem
Solution
Discussion
See Also
9.7 Processing All Files in a Directory Recursively
Problem
Solution
Discussion
See Also
9.8 Removing a Directory and Its Contents
Problem
Solution
Discussion
See Also
9.9 Renaming Files
Problem
Solution
Discussion
See Also
9.10 Splitting a Filename into Its Component Parts
Problem
Solution
Discussion
See Also
9.11 Working with Symbolic File Permissions Instead of Octal Values
Problem
Solution
Discussion
See Also
9.12 Program: symirror
9.13 Program: lst
Subroutines
10.0 Introduction
10.1 Accessing Subroutine Arguments
Problem
Solution
Discussion
See Also
10.2 Making Variables Private to a Function
Problem
Solution
Discussion
See Also
10.3 Creating Persistent Private Variables
Problem
Solution
Discussion
See Also
10.4 Determining Current Function Name
Problem
Solution
Discussion
See Also
10.5 Passing Arrays and Hashes by Reference
Problem
Solution
Discussion
See Also
10.6 Detecting Return Context
Problem
Solution
Discussion
See Also
10.7 Passing by Named Parameter
Problem
Solution
Discussion
See Also
10.8 Skipping Selected Return Values
Problem
Solution
Discussion
See Also
10.9 Returning More Than One Array or Hash
Problem
Solution
Discussion
See Also
10.10 Returning Failure
Problem
Solution
Discussion
See Also
10.11 Prototyping Functions
Problem
Solution
Discussion
Omitting parentheses
Mimicking built-ins
See Also
10.12 Handling Exceptions
Problem
Solution
Discussion
See Also
10.13 Saving Global Values
Problem
Solution
Discussion
Using local( ) for temporary values for globals
Using local( ) for local handles
Using local( ) on parts of aggregates
See Also
10.14 Redefining a Function
Problem
Solution
Discussion
See Also
10.15 Trapping Undefined Function Calls with AUTOLOAD
Problem
Solution
Discussion
See Also
10.16 Nesting Subroutines
Problem
Solution
Discussion
See Also
10.17 Writing a Switch Statement
Problem
Solution
Discussion
See Also
10.18 Program: Sorting Your Mail
See Also
References and Records
11.0 Introduction
References
Anonymous Data
Records
See Also
11.1 Taking References to Arrays
Problem
Solution
Discussion
See Also
11.2 Making Hashes of Arrays
Problem
Solution
Discussion
See Also
11.3 Taking References to Hashes
Problem
Solution
Discussion
See Also
11.4 Taking References to Functions
Problem
Solution
Discussion
See Also
11.5 Taking References to Scalars
Problem
Solution
Discussion
See Also
11.6 Creating Arrays of Scalar References
Problem
Solution
Discussion
See Also
11.7 Using Closures Instead of Objects
Problem
Solution
Discussion
See Also
11.8 Creating References to Methods
Problem
Solution
Discussion
See Also
11.9 Constructing Records
Problem
Solution
Discussion
See Also
11.10 Reading and Writing Hash Records to Text Files
Problem
Solution
Discussion
See Also
11.11 Printing Data Structures
Problem
Solution
Discussion
See Also
11.12 Copying Data Structures
Problem
Solution
Discussion
See Also
11.13 Storing Data Structures to Disk
Problem
Solution
Discussion
See Also
11.14 Transparently Persistent Data Structures
Problem
Solution
Discussion
See Also
11.15 Coping with Circular Data Structures Using Weak References
Problem
Solution
Description
See Also
11.16 Program: Outlines
11.17 Program: Binary Trees
Packages, Libraries, and Modules
12.0 Introduction
Modules
Import/Export Regulations
Other Kinds of Library Files
Not Reinventing the Wheel
See Also
12.1 Defining a Module's Interface
Problem
Solution
Discussion
See Also
12.2 Trapping Errors in require or use
Problem
Solution
Discussion
See Also
12.3 Delaying use Until Runtime
Problem
Solution
Discussion
See Also
12.4 Making Variables Private to a Module
Problem
Solution
Discussion
See Also
12.5 Making Functions Private to a Module
Problem
Solution
Discussion
See Also
12.6 Determining the Caller's Package
Problem
Solution
Discussion
See Also
12.7 Automating Module Cleanup
Problem
Solution
Discussion
See Also
12.8 Keeping Your Own Module Directory
Problem
Solution
Discussion
See Also
12.9 Preparing a Module for Distribution
Problem
Solution
Discussion
See Also
12.10 Speeding Module Loading with SelfLoader
Problem
Solution
Discussion
See Also
12.11 Speeding Up Module Loading with Autoloader
Problem
Solution
Discussion
See Also
12.12 Overriding Built-in Functions
Problem
Solution
Discussion
See Also
12.13 Overriding a Built-in Function in All Packages
Problem
Solution
Discussion
See Also
12.14 Reporting Errors and Warnings Like Built ins
Problem
Solution
Discussion
See Also
12.15 Customizing Warnings
Problem
Solution
Discussion
See Also
12.16 Referring to Packages Indirectly
Problem
Solution
Discussion
See Also
12.17 Using h2ph to Translate C #include Files
Problem
Solution
Discussion
See Also
12.18 Using h2xs to Make a Module with C Code
Problem
Solution
Discussion
See Also
12.19 Writing Extensions in C with Inline::C
Problem
Solution
Discussion
See Also
12.20 Documenting Your Module with Pod
Problem
Solution
Discussion
See Also
12.21 Building and Installing a CPAN Module
Problem
Solution
Discussion
See Also
12.22 Example: Module Template
12.23 Program: Finding Versions and Descriptions of Installed Modules
Classes, Objects, and Ties
13.0 Introduction
Under the Hood
Methods
Inheritance
A Warning on Indirect Object Notation
Some Notes on Object Terminology
Philosophical Aside
See Also
13.1 Constructing an Object
Problem
Solution
Discussion
See Also
13.2 Destroying an Object
Problem
Solution
Discussion
See Also
13.3 Managing Instance Data
Problem
Solution
Discussion
See Also
13.4 Managing Class Data
Problem
Solution
Discussion
See Also
13.5 Using Classes as Structs
Problem
Solution
Discussion
See Also
13.6 Cloning Constructors
Problem
Solution
Discussion
See Also
13.7 Copy Constructors
Problem
Solution
Discussion
See Also
13.8 Invoking Methods Indirectly
Problem
Solution
Discussion
See Also
13.9 Determining Subclass Membership
Problem
Solution
Discussion
See Also
13.10 Writing an Inheritable Class
Problem
Solution
Discussion
See Also
13.11 Accessing Overridden Methods
Problem
Solution
Discussion
See Also
13.12 Generating Attribute Methods Using AUTOLOAD
Problem
Solution
Discussion
See Also
13.13 Coping with Circular Data Structures Using Objects
Problem
Solution
Discussion
See Also
13.14 Overloading Operators
Problem
Solution
Discussion
Example: Overloaded StrNum Class
Example: Overloaded FixNum Class
See Also
13.15 Creating Magic Variables with tie
Problem
Solution
Discussion
Tie Example: Outlaw $_
Tie Example: Make a Hash That Always Appends
Tie Example: Case-Insensitive Hash
Tie Example: Hash That Allows Lookups by Key or Value
Tie Example: Handle That Counts Access
Tie Example: Multiple Sink Filehandles
See Also
Database Access
14.0 Introduction
14.1 Making and Using a DBM File
Problem
Solution
Discussion
See Also
14.2 Emptying a DBM File
Problem
Solution
Discussion
See Also
14.3 Converting Between DBM Files
Problem
Solution
Discussion
See Also
14.4 Merging DBM Files
Problem
Solution
Discussion
See Also
14.5 Sorting Large DBM Files
Problem
Solution
Description
See Also
14.6 Storing Complex Data in a DBM File
Problem
Solution
Discussion
See Also
14.7 Persistent Data
Problem
Solution
Discussion
See Also
14.8 Saving Query Results to Excel or CSV
Problem
Solution
Discussion
See Also
14.9 Executing an SQL Command Using DBI
Problem
Solution
Discussion
See Also
14.10 Escaping Quotes
Problem
Solution
Discussion
See Also
14.11 Dealing with Database Errors
Problem
Solution
Discussion
See Also
14.12 Repeating Queries Efficiently
Problem
Solution
Discussion
See Also
14.13 Building Queries Programmatically
Problem
Solution
Discussion
See Also
14.14 Finding the Number of Rows Returned by a Query
Problem
Solution
Discussion
See Also
14.15 Using Transactions
Problem
Solution
Discussion
See Also
14.16 Viewing Data One Page at a Time
Problem
Solution
Discussion
See Also
14.17 Querying a CSV File with SQL
Problem
Solution
Discussion
See Also
14.18 Using SQL Without a Database Server
Problem
Solution
Discussion
See Also
14.19 Program: ggh-Grep Netscape Global History
See Also
Interactivity
15.0 Introduction
15.1 Parsing Program Arguments
Problem
Solution
Discussion
See Also
15.2 Testing Whether a Program Is Running Interactively
Problem
Solution
Discussion
See Also
15.3 Clearing the Screen
Problem
Solution
Discussion
See Also
15.4 Determining Terminal or Window Size
Problem
Solution
Discussion
See Also
15.5 Changing Text Color
Problem
Solution
Discussion
See Also
15.6 Reading Single Characters from the Keyboard
Problem
Solution
Discussion
See Also
15.7 Ringing the Terminal Bell
Problem
Solution
Discussion
See Also
15.8 Using POSIX termios
Problem
Solution
Description
See Also
15.9 Checking for Waiting Input
Problem
Solution
Discussion
See Also
15.10 Reading Passwords
Problem
Solution
Discussion
See Also
15.11 Editing Input
Problem
Solution
Discussion
See Also
15.12 Managing the Screen
Problem
Solution
Description
See Also
15.13 Controlling Another Program with Expect
Problem
Solution
Discussion
See Also
15.14 Creating Menus with Tk
Problem
Solution
Discussion
See Also
15.15 Creating Dialog Boxes with Tk
Problem
Solution
Discussion
See Also
15.16 Responding to Tk Resize Events
Problem
Solution
Discussion
See Also
15.17 Removing the DOS Shell Window with Windows Perl/Tk
Problem
Solution
Description
See Also
15.18 Graphing Data
Problem
Solution
Discussion
See Also
15.19 Thumbnailing Images
Problem
Solution
Discussion
See Also
15.20 Adding Text to an Image
Problem
Solution
Discussion
See Also
15.21 Program: Small termcap Program
Description
See Also
15.22 Program: tkshufflepod
15.23 Program: graphbox
Process Management and Communication
16.0 Introduction
Process Creation
Signals
16.1 Gathering Output from a Program
Problem
Solution
Discussion
See Also
16.2 Running Another Program
Problem
Solution
Discussion
See Also
16.3 Replacing the Current Program with a Different One
Problem
Solution
Discussion
See Also
16.4 Reading or Writing to Another Program
Problem
Solution
Discussion
See Also
16.5 Filtering Your Own Output
Problem
Solution
Discussion
See Also
16.6 Preprocessing Input
Problem
Solution
Discussion
See Also
16.7 Reading STDERR from a Program
Problem
Solution
Discussion
See Also
16.8 Controlling Input and Output of Another Program
Problem
Solution
Discussion
See Also
16.9 Controlling the Input, Output, and Error of Another Program
Problem
Solution
Discussion
See Also
16.10 Communicating Between Related Processes
Problem
Solution
Discussion
See Also
16.11 Making a Process Look Like a File with Named Pipes
Problem
Solution
Discussion
See Also
16.12 Sharing Variables in Different Processes
Problem
Solution
Discussion
See Also
16.13 Listing Available Signals
Problem
Solution
Discussion
See Also
16.14 Sending a Signal
Problem
Solution
Discussion
See Also
16.15 Installing a Signal Handler
Problem
Solution
Discussion
See Also
16.16 Temporarily Overriding a Signal Handler
Problem
Solution
Discussion
See Also
16.17 Writing a Signal Handler
Problem
Solution
Discussion
See Also
16.18 Catching Ctrl-C
Problem
Solution
Discussion
See Also
16.19 Avoiding Zombie Processes
Problem
Solution
Discussion
See Also
16.20 Blocking Signals
Problem
Solution
Discussion
See Also
16.21 Timing Out an Operation
Problem
Solution
Discussion
See Also
16.22 Turning Signals into Fatal Errors
Problem
Solution
Discussion
See Also
16.23 Program: sigrand
Sockets
17.0 Introduction
17.1 Writing a TCP Client
Problem
Solution
Discussion
See Also
17.2 Writing a TCP Server
Problem
Solution
Discussion
See Also
17.3 Communicating over TCP
Problem
Solution
Discussion
See Also
17.4 Setting Up a UDP Client
Problem
Solution
Discussion
See Also
17.5 Setting Up a UDP Server
Problem
Solution
Discussion
See Also
17.6 Using Unix Domain Sockets
Problem
Solution
Discussion
See Also
17.7 Identifying the Other End of a Socket
Problem
Solution
Discussion
See Also
17.8 Finding Your Own Name and Address
Problem
Solution
Discussion
See Also
17.9 Closing a Socket After Forking
Problem
Solution
Discussion
See Also
17.10 Writing Bidirectional Clients
Problem
Solution
Discussion
See Also
17.11 Forking Servers
Problem
Solution
Discussion
See Also
17.12 Pre-Forking Servers
Problem
Solution
Discussion
See Also
17.13 Non-Forking Servers
Problem
Solution
Discussion
See Also
17.14 Multitasking Server with Threads
Problem
Solution
Discussion
See Also
17.15 Writing a Multitasking Server with POE
Problem
Solution
Solution
See Also
17.16 Writing a Multihomed Server
Problem
Solution
Discussion
See Also
17.17 Making a Daemon Server
Problem
Solution
Discussion
See Also
17.18 Restarting a Server on Demand
Problem
Solution
Discussion
See Also
17.19 Managing Multiple Streams of Input
Problem
Solution
Discussion
See Also
17.20 Program: backsniff
17.21 Program: fwdport
See Also
Internet Services
18.0 Introduction
18.1 Simple DNS Lookups
Problem
Solution
Discussion
See Also
18.2 Being an FTP Client
Problem
Solution
Discussion
See Also
18.3 Sending Mail
Problem
Solution
Discussion
See Also
18.4 Reading and Posting Usenet News Messages
Problem
Solution
Discussion
See Also
18.5 Reading Mail with POP3
Problem
Solution
Discussion
See Also
18.6 Simulating Telnet from a Program
Problem
Solution
Discussion
See Also
18.7 Pinging a Machine
Problem
Solution
Discussion
See Also
18.8 Accessing an LDAP Server
Problem
Solution
Discussion
See Also
18.9 Sending Attachments in Mail
Problem
Solution
Discussion
See Also
18.10 Extracting Attachments from Mail
Problem
Solution
Discussion
See Also
18.11 Writing an XML-RPC Server
Problem
Solution
Discussion
See Also
18.12 Writing an XML-RPC Client
Problem
Solution
Discussion
See Also
18.13 Writing a SOAP Server
Problem
Solution
Discussion
See Also
18.14 Writing a SOAP Client
Problem
Solution
Discussion
See Also
18.15 Program: rfrm
18.16 Program: expn and vrfy
CGI Programming
19.0 Introduction
Architecture
Behind the Scenes
Security
HTML and Forms
Web-Related Resources
19.1 Writing a CGI Script
Problem
Solution
Discussion
See Also
19.2 Redirecting Error Messages
Problem
Solution
Discussion
See Also
19.3 Fixing a 500 Server Error
Problem
Solution
Discussion
Make sure the web server can run the script
Make sure the script has permissions to do what it's trying to do
Is the script valid Perl?
Is the script upholding its end of the CGI protocol?
Asking for help elsewhere
See Also
19.4 Writing a Safe CGI Program
Problem
Solution
Discussion
See Also
19.5 Executing Commands Without Shell Escapes
Problem
Solution
Discussion
See Also
19.6 Formatting Lists and Tables with HTML Shortcuts
Problem
Solution
Discussion
See Also
19.7 Redirecting to a Different Location
Problem
Solution
Discussion
See Also
19.8 Debugging the Raw HTTP Exchange
Problem
Solution
Discussion
See Also
19.9 Managing Cookies
Problem
Solution
Discussion
See Also
19.10 Creating Sticky Widgets
Problem
Solution
Discussion
See Also
19.11 Writing a Multiscreen CGI Script
Problem
Solution
Discussion
See Also
19.12 Saving a Form to a File or Mail Pipe
Problem
Solution
Discussion
See Also
19.13 Program: chemiserie
Web Automation
20.0 Introduction
20.1 Fetching a URL from a Perl Script
Problem
Solution
Discussion
See Also
20.2 Automating Form Submission
Problem
Solution
Discussion
See Also
20.3 Extracting URLs
Problem
Solution
Discussion
See Also
20.4 Converting ASCII to HTML
Problem
Solution
Discussion
See Also
20.5 Converting HTML to ASCII
Problem
Solution
Discussion
See Also
20.6 Extracting or Removing HTML Tags
Problem
Solution
Discussion
See Also
20.7 Finding Stale Links
Problem
Solution
Discussion
See Also
20.8 Finding Fresh Links
Problem
Solution
Discussion
See Also
20.9 Using Templates to Generate HTML
Problem
Solution
Discussion
See Also
20.10 Mirroring Web Pages
Problem
Solution
Discussion
See Also
20.11 Creating a Robot
Problem
Solution
Discussion
See Also
20.12 Parsing a Web Server Log File
Problem
Solution
Discussion
See Also
20.13 Processing Server Logs
Problem
Solution
Discussion
See Also
20.14 Using Cookies
Problem
Solution
Discussion
See Also
20.15 Fetching Password-Protected Pages
Problem
Solution
Discussion
See Also
20.16 Fetching https:// Web Pages
Problem
Solution
Discussion
See Also
20.17 Resuming an HTTP GET
Problem
Solution
Discussion
See Also
20.18 Parsing HTML
Problem
Solution
Discussion
See Also
20.19 Extracting Table Data
Problem
Solution
Discussion
See Also
20.20 Program: htmlsub
20.21 Program: hrefsub
mod_perl
21.0 Introduction
Handlers
Apache Phases
More Documentation
mod_perl 2
21.1 Authenticating
Problem
Solution
Description
See Also
21.2 Setting Cookies
Problem
Solution
Description
See Also
21.3 Accessing Cookie Values
Problem
Solution
Discussion
See Also
21.4 Redirecting the Browser
Problem
Solution
Discussion
See Also
21.5 Interrogating Headers
Problem
Solution
Discussion
See Also
21.6 Accessing Form Parameters
Problem
Solution
Discussion
See Also
21.7 Receiving Uploaded Files
Problem
Solution
Discussion
See Also
21.8 Speeding Up Database Access
Problem
Solution
Discussion
See Also
21.9 Customizing Apache's Logging
Problem
Solution
Discussion
See Also
21.10 Transparently Storing Information in URLs
Problem
Solution
Discussion
See Also
21.11 Communicating Between mod_perl and PHP
Problem
Solution
Discussion
See Also
21.12 Migrating from CGI to mod_perl
Problem
Solution
Discussion
See Also
21.13 Sharing Information Between Handlers
Problem
Solution
Discussion
See Also
21.14 Reloading Changed Modules
Problem
Solution
Discussion
See Also
21.15 Benchmarking a mod_perl Application
Problem
Solution
Discussion
See Also
21.16 Templating with HTML::Mason
Problem
Solution
Discussion
Configuration
Basic Mason syntax
Objects
Autohandlers
Dhandlers
See Also
21.17 Templating with Template Toolkit
Problem
Solution
Discussion
Configuration
Syntax
Perl code
Data structures
Subroutines
Including other templates
Parameters
Plug-ins
See Also
XML
22.0 Introduction
Syntax
XML Declaration
Processing Instructions
Comments
CDATA
Well-Formed XML
Schemas
Namespaces
Transformations
Paths
History of Perl and XML
Further Reading
22.1 Parsing XML into Data Structures
Problem
Solution
Discussion
See Also
22.2 Parsing XML into a DOM Tree
Problem
Solution
Discussion
See Also
22.3 Parsing XML into SAX Events
Problem
Solution
Discussion
See Also
22.4 Making Simple Changes to Elements or Text
Problem
Solution
Discussion
See Also
22.5 Validating XML
Problem
Solution
Discussion
See Also
22.6 Finding Elements and Text Within an XML Document
Problem
Solution
Discussion
See Also
22.7 Processing XML Stylesheet Transformations
Problem
Solution
Discussion
See Also
22.8 Processing Files Larger Than Available Memory
Problem
Solution
Discussion
See Also
22.9 Reading and Writing RSS Files
Problem
Solution
Discussion
See Also
22.10 Writing XML
Problem
Solution
Discussion
See Also
Index

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