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Index: I

buffering

Perl Cookbook, 7.0. Introduction
Perl Cookbook, 7.12. Flushing Output
Perl Cookbook, 8.0. Introduction
Perl Cookbook, 17.3. Communicating over TCP

controlling for other programs : Perl Cookbook, 16.8. Controlling Input and Output of Another Program

flushing output : Perl Cookbook, 7.12. Flushing Output

non-blocking : Perl Cookbook, 7.14. Doing Non-Blocking I/O

preprocessing input : Perl Cookbook, 16.6. Preprocessing Input

random-access I/O : Perl Cookbook, 8.12. Using Random-Access I/O

reading/writing to other programs : Perl Cookbook, 16.4. Reading or Writing to Another Program

I/O redirection : Advanced Perl Programming, 3.4.1. I/O Redirection

I18N::Collate module

Perl in a Nutshell, 8.88. I18N::Collate
Programming Perl, 7.2.37. I18N::Collate - Compare 8-bit Scalar Data According to the Current Locale

ic_cookies program (example) : Perl Cookbook, 19.10. Managing Cookies

iconbitmap() (Frame widget) : Perl in a Nutshell, 18.18.1. Toplevel Methods

iconify() (Frame widget) : Perl in a Nutshell, 18.18.1. Toplevel Methods

iconmask() (Frame widget) : Perl in a Nutshell, 18.18.1. Toplevel Methods

iconname() (Frame widget) : Perl in a Nutshell, 18.18.1. Toplevel Methods

iconposition() (Frame widget) : Perl in a Nutshell, 18.18.1. Toplevel Methods

iconwindow() (Frame widget) : Perl in a Nutshell, 18.18.1. Toplevel Methods

icursor() (Entry) : Perl in a Nutshell, 18.8.2. Entry Methods

idempotency : Perl Cookbook, 19.0. Introduction

identifiers, package : Programming Perl, 5.1. Packages

identify()

Scale widget : Perl in a Nutshell, 18.13.1. Scale Methods
Scrollbar widget : Perl in a Nutshell, 18.9.1. Scrollbar Methods

identity, object

Advanced Perl Programming, 7.2.2. Unique Identity
Advanced Perl Programming, 11.2.6. Object Identity

ideographic unary operators : Programming Perl, 2.5.5. Ideographic Unary Operators

IDL (Interface Definition Language) : Advanced Perl Programming, 17.1. On Code Generation

if statement

Learning Perl, 1.5.3. Adding Choices

Learning Perl, 4.2. The if/unless Statement

Learning Perl, 9.5. Expression Modifiers

Learning Perl on Win32 Systems, 1.6.3. Adding Choices

Learning Perl on Win32 Systems, 4.2. The if/unless Statement

Learning Perl on Win32 Systems, 9.5. Expression Modifiers

Perl in a Nutshell, 4.3.1. Conditionals and Loops

Perl in a Nutshell, 4.3.1.4. Modifiers

Programming Perl, 1.6.1.1. The if and unless statements

Programming Perl, 2.6.1. Simple Statements

Programming Perl, 2.6.3. If Statements

Programming Perl, 8.2.4. C Traps

in case structure : Programming Perl, 2.6.5. Bare Blocks and Case Structures

examples of

Learning Perl, 1.5.9. Making It a Bit More Modular
Learning Perl, 1.5.17. The Final Programs
Learning Perl, 4.2. The if/unless Statement
Learning Perl, 5.4.1. The keys Function
Learning Perl on Win32 Systems, 1.6.17. The Final Programs
Learning Perl on Win32 Systems, 1.6.9. Making It a Bit More Modular
Learning Perl on Win32 Systems, 4.2. The if/unless Statement
Learning Perl on Win32 Systems, 5.4.1. The keys Function

not counting as looping block : Learning Perl, 9.2. The next Statement

unless modifier

Learning Perl, 9.5. Expression Modifiers
Learning Perl, 10.3. A Slight Diversion: die

If-Modified-Since header : Perl Cookbook, 20.10. Mirroring Web Pages

'IGNORE' string : Programming Perl, 6.2.1. Signals

IGNORE value (%SIG) : Learning Perl, 14.6. Sending and Receiving Signals

ignore_text() (HTML::Parser) : Perl in a Nutshell, Chapter 17, Reference: ignore_text

ignore_unknown() (HTML::Parser) : Perl in a Nutshell, Chapter 17, Reference: ignore_unknown

ignoring case : (see case/capitalization)

ihave() (Net::NNTP) : Perl in a Nutshell, Chapter 15, Reference: ihave

-image option (widgets) : Perl in a Nutshell, 18.3. Common Widget Configuration Options

image_button() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: image_button

images, widgets and : Advanced Perl Programming, 14.3.1.2. Images

imaginary numbers

Perl Cookbook, 2.15. Using Complex Numbers
Programming Perl, 7.2.44. Math::Complex - Complex Numbers Package

impedance mismatch : Advanced Perl Programming, 10.1. Persistence Issues

implementation : Programming Perl, 5.5.7. Implementation (the "Uses" Relationship)

implementation classes : (see tie())

implementation inheritance : Advanced Perl Programming, 8.3.2. Implementation Inheritance

implicit() (HTML::Parser) : Perl in a Nutshell, Chapter 17, Reference: implicit

implicit_tags() (HTML::Parser) : Perl in a Nutshell, Chapter 17, Reference: implicit_tags

import()

Programming Perl, 3.2.74. import
Programming Perl, 5.2. Modules
Programming Perl, 7.2.14. Env - Import Environment Variables

import lists : Programming Perl, 7.2.15.1. Specialized import lists

import_names() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: import_names

import subroutine : Advanced Perl Programming, 6.5.1. How Do use and Exporter Work?

import tags : Learning Perl, 19.5. Less Typing

importing

environment variables : Programming Perl, 7.2.14. Env - Import Environment Variables

modules : Programming Perl, 7.2.15. Exporter - Default Import Method for Modules

from modules : Perl Cookbook, 10.14. Redefining a Function

semantics into package : Programming Perl, 3.2.185. use

subroutines : Programming Perl, 2.7. Subroutines

symbols

Advanced Perl Programming, 6.5. Importing Symbols
Perl Cookbook, 12.0. Introduction

in() (Win32::OLE) : Perl in a Nutshell, Chapter 19, Reference: in

-in option

grid geometry manager : Perl in a Nutshell, 18.2.2. The grid Geometry Manager
pack geometry manager : Perl in a Nutshell, 18.2.1. The pack Geometry Manager
place geometry manager : Perl in a Nutshell, 18.2.3. The Place Geometry Manager

in-memory databases : Programming Perl, 7.2.8.4. In-memory databases

in-proc servers : Learning Perl on Win32 Systems, 19.1. Introduction to OLE Automation

InactiveDestroy attribute (DBI) : Perl in a Nutshell, 12.2.3. Database Handles and Statement Handles

INADDR_ANY() (Socket)

Perl Cookbook, 17.1. Writing a TCP Client
Perl Cookbook, 17.14. Writing a Multi-Homed Server
Perl in a Nutshell, 13.1.3. Server Connections
Perl in a Nutshell, 13.1.4. Socket Module Functions

INADDR_BROADCAST() (Socket) : Perl in a Nutshell, 13.1.4. Socket Module Functions

INADDR_LOOPBACK() (Socket) : Perl in a Nutshell, 13.1.4. Socket Module Functions

INADDR_NONE() (Socket) : Perl in a Nutshell, 13.1.4. Socket Module Functions

@INC array

Advanced Perl Programming, 6.2.1. Load Path
Perl Cookbook, 12.7. Keeping Your Own Module Directory
Perl in a Nutshell, 4.4.2. Global Special Arrays and Hashes
Programming Perl, 2.9.4. Global Special Arrays
manipulating at compile time : Programming Perl, 7.2.41. lib - Manipulate @INC at Compile-Time
prepending directories to : Programming Perl, 6.1.2. Switches

%INC hash

Perl in a Nutshell, 4.4.2. Global Special Arrays and Hashes
Programming Perl, 2.9.4. Global Special Arrays

#include header, translating with h2ph : Perl Cookbook, 12.14. Using h2ph to Translate C #include Files

incr command (debugger) : Programming Perl, 8.1.1. Debugger Commands

indeces of array elements : (see arrays)

indentation, in Perl programs

Learning Perl, 1.4. Basic Concepts
Learning Perl on Win32 Systems, 1.5. Basic Concepts

indents : (see whitespace)

index()

Learning Perl, 15.1. Finding a Substring
Perl in a Nutshell, Chapter 5, Reference: index
Programming Perl, 3.2.75. index
Entry widget : Perl in a Nutshell, 18.8.2. Entry Methods
Listbox widget : Perl in a Nutshell, 18.10.2. Listbox Methods
Menu widget : Perl in a Nutshell, 18.15.2. Menu Methods
Text widget : Perl in a Nutshell, 18.11.2. Text Methods

indexes, text positioning : Advanced Perl Programming, 14.3.5.1. Inserting text at absolute positions

-indicatoron option

Checkbutton widget : Perl in a Nutshell, 18.5. The Checkbutton Widget

Menubutton widget

Perl in a Nutshell, 18.14. The Menubutton Widget
Perl in a Nutshell, 18.14.1. Menu Item Options

Optionmenu widget : Perl in a Nutshell, 18.16. The Optionmenu Widget

Radiobutton widget : Perl in a Nutshell, 18.6. The Radiobutton Widget

indices of hash elements : Perl Cookbook, 5.0. Introduction

indirect filehandles

Perl Cookbook, 7.0. Introduction
Perl Cookbook, 7.16. Storing Filehandles in Variables
Learning Perl, 12.2. Globbing

indirect notation

Advanced Perl Programming, 7.2.5.1. Detour: The indirect notation
Perl Cookbook, 13.0. Introduction
Programming Perl, 5.3.6. Method Invocation
Programming Perl, 5.5.1. Object-Oriented Scaling Tips

indirection, multiple levels of : Advanced Perl Programming, 1.2.4. Dereferencing Multiple Levels of Indirection

inequality : (see equality operators; relational operators)

INET module : Advanced Perl Programming, 12.2.1. Receiver

inet_aton() (Socket) : Perl in a Nutshell, Chapter 13, Reference: inet_aton

inet_ntoa() (Socket)

Perl Cookbook, 17.0. Introduction
Perl in a Nutshell, Chapter 13, Reference: inet_ntoa

infinite loops

Learning Perl, 9.3. The redo Statement
Programming Perl, 2.6.4.2. For loops

infix dereference (arrow) operator : (see - (hyphen), -> (arrow) operator)

Info() (Win32::Console) : Perl in a Nutshell, Chapter 19, Reference: Info

Ing-Simmons, Nick : Advanced Perl Programming, 14.1. Introduction to GUIs, Tk, and Perl/Tk

inheritance

Advanced Perl Programming, 7.1. OO: An Introduction
Advanced Perl Programming, 7.2.6. The Need for Inheritance
Advanced Perl Programming, 8.3. On Inheritance
Advanced Perl Programming, 11.2.5. Inheritance and Database Mapping
Perl Cookbook, 13.0. Introduction
Perl Cookbook, 13.9. Writing an Inheritable Class
Perl Cookbook, 13.12. Solving the Data Inheritance Problem
Programming Perl, 5.3.1. Brief Refresher on Object-Oriented Programming
Programming Perl, 5.3.4. A Class Is Simply a Package
Programming Perl, 5.5.1. Object-Oriented Scaling Tips
Programming Perl, 5.5.10. Inheriting a Constructor
hierarchy, searching : Advanced Perl Programming, 7.3.1. Searching for Methods
instance variable : Programming Perl, 5.5.4. Instance Variable Inheritance

init program : Programming Perl, 3.2.56. getppid

initial caps : (see case/capitalization)

initializers : (see constructors)

initializing

arrays and hashes

Perl Cookbook, 4.1. Specifying a List In Your Program
Perl Cookbook, 5.0. Introduction
Programming Perl, 2.5.7. Multiplicative Operators

C library : Advanced Perl Programming, 18.1. Writing an Extension: Overview

hash variables : Programming Perl, 2.3.5. Hashes (Associative Arrays)

modules/packages

Advanced Perl Programming, 6.3. Package Initialization and Destruction
Perl Cookbook, 12.6. Automating Module Clean-Up

NNTP clients : Perl in a Nutshell, 15.2.1. Initializing the NNTP Client

sockets : Perl in a Nutshell, 13.1.1. Initializing a Socket

InitiateSystemShutdown module : Learning Perl on Win32 Systems, B.4. Win32 Extensions

$ino file statistic : Programming Perl, 3.2.159. stat

inodes : Perl Cookbook, 9.0. Introduction

inplace editing : Learning Perl, 17.5. Variable-Length (Text) Databases

$INPLACE_EDIT ($^I) variable

Learning Perl, 17.5. Variable-Length (Text) Databases
Perl in a Nutshell, 4.4.1. Global Special Variables
Programming Perl, 2.9.3. Global Special Variables
Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables

input

(see also filehandles)

Programming Perl, 1.4. Filehandles

checking file descriptors for : Programming Perl, 3.2.135. select (ready file descriptors)

checking for waiting : Perl Cookbook, 15.9. Checking for Waiting Input

comma-separated, parsing : Perl Cookbook, 1.15. Parsing Comma-Separated Data

controlling for other programs : Perl Cookbook, 16.8. Controlling Input and Output of Another Program

editing : Perl Cookbook, 15.11. Editing Input

executing shell commands from (CGI) : Perl Cookbook, 19.6. Executing Commands Without Shell Escapes

expanding variables in : Perl Cookbook, 1.8. Expanding Variables in User Input

Expect-controlled programs and : Perl Cookbook, 15.13. Controlling Another Program with Expect

extracting variable-length fields : Perl Cookbook, 8.9. Processing Variable-Length Text Fields

functions for

(see also $ variables, $_ ($ARG) variable; output)
Perl in a Nutshell, 4.4.1. Global Special Variables
Perl in a Nutshell, 5.1. Perl Functions by Category

from HTML forms : (see CGI programs)

operators : Programming Perl, 2.3.7. Input Operators

parsing command-line arguments : Perl Cookbook, 15.1. Parsing Program Arguments

pipes : Programming Perl, 6.2.2. Pipes

preprocessing : Perl Cookbook, 16.6. Preprocessing Input

random-access I/O : Perl Cookbook, 8.12. Using Random-Access I/O

reading

in awk : Programming Perl, 8.2.3. Awk Traps
from keyboard : Perl Cookbook, 15.6. Reading from the Keyboard
from other programs : Perl Cookbook, 16.4. Reading or Writing to Another Program
passwords : Perl Cookbook, 15.10. Reading Passwords
records with pattern separators : Perl Cookbook, 6.7. Reading Records with a Pattern Separator
STDERR from programs : Perl Cookbook, 16.7. Reading STDERR from a Program

record separator : (see $ variables, $/ variable)

single-character buffered : Programming Perl, 3.2.43. getc

specification parser

Advanced Perl Programming, 17.2. Jeeves Example
Advanced Perl Programming, 17.5. Sample Specification Parser

unbuffered

Advanced Perl Programming, 17.3.1. Advantages of This Architecture
Programming Perl, 3.2.43. getc
Programming Perl, 7.2.49.1. Classes

<INPUT> tags (HTML) : Perl in a Nutshell, 9.1. A Typical CGI Interaction

Input() (Win32::Console) : Perl in a Nutshell, Chapter 19, Reference: Input

$INPUT_LINE_NUMBER ($.) variable

Perl in a Nutshell, 4.4.1. Global Special Variables
Programming Perl, 2.9.3. Global Special Variables
Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables

$INPUT_RECORD_SEPARATOR ($/) variable

Perl Cookbook, 8.0. Introduction
Learning Perl, 6.1. Input from STDIN
Learning Perl, 14.2. Using Backquotes
Learning Perl on Win32 Systems, 6.1. Input from STDIN
Perl in a Nutshell, 4.4.1. Global Special Variables
Programming Perl, 2.9.3. Global Special Variables
Programming Perl, 6.1.2. Switches
Programming Perl, 7.2.13. English - Use English or awk Names for Punctuation Variables

InputChar() (Win32::Console) : Perl in a Nutshell, Chapter 19, Reference: InputChar

InputCP() (Win32::Console) : Perl in a Nutshell, Chapter 19, Reference: InputCP

insert()

Entry widget : Perl in a Nutshell, 18.8.2. Entry Methods
Listbox widget : Perl in a Nutshell, 18.10.2. Listbox Methods
Menu widget : Perl in a Nutshell, 18.15.2. Menu Methods
Text widget : Perl in a Nutshell, 18.11.2. Text Methods

insert index

Entry widget : Perl in a Nutshell, 18.8.1. Text Indexes
Text widget : Perl in a Nutshell, 18.11.1. Text Indexes and Modifiers

insert_element() (HTML::Parser) : Perl in a Nutshell, Chapter 17, Reference: insert_element

-insertbackground option (widgets) : Perl in a Nutshell, 18.3. Common Widget Configuration Options

-insertborderwidth option (widgets) : Perl in a Nutshell, 18.3. Common Widget Configuration Options

-insertofftime option (widgets) : Perl in a Nutshell, 18.3. Common Widget Configuration Options

-insertontime option (widgets) : Perl in a Nutshell, 18.3. Common Widget Configuration Options

-insertwidth option (widgets) : Perl in a Nutshell, 18.3. Common Widget Configuration Options

install() : Programming Perl, 7.2.16. ExtUtils::Install - Install Files from Here to There

install command (CPAN.pm) : Perl in a Nutshell, Chapter 2, Reference: install

Install module : Programming Perl, 7.2.16. ExtUtils::Install - Install Files from Here to There

installing

mod_perl module : Perl in a Nutshell, 11.2. Installing mod_perl

modules from CPAN : Perl Cookbook, 12.17. Building and Installing a CPAN Module

Perl documentation : Perl in a Nutshell, 2.5.1. Installing the Documentation

Perl source code and modules

Perl in a Nutshell, 2.3. Installing Perl
Perl in a Nutshell, 2.4.2. Module Installation
Programming Perl, 7.2.16. ExtUtils::Install - Install Files from Here to There
Programming Perl, 8.5. Distribution and Installation

signal handlers : Perl Cookbook, 16.15. Installing a Signal Handler

instance data

Perl Cookbook, 13.0. Introduction
Perl Cookbook, 13.3. Managing Instance Data
circular data structures : Perl Cookbook, 13.13. Coping with Circular Data Structures
inheritance and : Perl Cookbook, 13.12. Solving the Data Inheritance Problem

instance methods

Advanced Perl Programming, 7.2.3. Behavior
Perl Cookbook, 13.0. Introduction
Perl in a Nutshell, 7.4. Object Syntax
Programming Perl, 5.3.1. Brief Refresher on Object-Oriented Programming
Programming Perl, 5.3.5.2. Instance methods
arrow notation for : Advanced Perl Programming, 7.2.4. The Need for Polymorphism

instance variables : Programming Perl, 5.5.2. Instance Variables

instances

(see also objects)
Programming Perl, 5.3.1. Brief Refresher on Object-Oriented Programming

int()

Perl Cookbook, 2.3. Rounding Floating-Point Numbers
Learning Perl, 10.5. The -x File Tests
Learning Perl on Win32 Systems, 10.6. The -x File Tests
Perl in a Nutshell, Chapter 5, Reference: int
Programming Perl, 3.2.76. int

INT signal : Advanced Perl Programming, 4.2.2. Signal Handlers

integer method : Programming Perl, 7.2.38. integer - Do Arithmetic in Integer Instead of Double

integer module

Perl in a Nutshell, 8.89. integer
Programming Perl, 2.6.9. Pragmas

integer values (IVs)

Advanced Perl Programming, 20.3.1.3. SVs and object pointers
Advanced Perl Programming, 20.3.1. Scalar Values

integers

(see numbers)
Learning Perl, 2.2.1. All Numbers Use the Same Format Internally
Learning Perl, 2.2.3. Integer Literals
Learning Perl on Win32 Systems, 2.2.1. All Numbers Use the Same Format Internally
Learning Perl on Win32 Systems, 2.2.3. Integer Literals
Programming Perl, 3.2.76. int
Programming Perl, 7.2.38. integer - Do Arithmetic in Integer Instead of Double
Programming Perl, 7.2.43. Math::BigInt - Arbitrary-Length Integer Math Package
strings as vectors of : Programming Perl, 3.2.188. vec

interactivity, testing for : Perl Cookbook, 15.2. Testing Whether a Program Is Running Interactively

Interface Definition Language (IDL) : Advanced Perl Programming, 17.1. On Code Generation

interface functions : Advanced Perl Programming, 7.2.3. Behavior

interface inheritance : Advanced Perl Programming, 8.3.3. Interface Inheritance

interfaces : (see user interfaces)

interior sequences (pod) : Perl in a Nutshell, 4.11.2. Interior sequences

Internet domain sockets : Perl Cookbook, 17.0. Introduction

Internet module : Learning Perl on Win32 Systems, B.4. Win32 Extensions

Internet services : Perl Cookbook, 18.0. Introduction

DNS lookups : Perl Cookbook, 18.1. Simple DNS Lookups
expn and vrfy programs (examples) : Perl Cookbook, 18.9. Program: expn and vrfy
FTP clients : Perl Cookbook, 18.2. Being an FTP Client
mail : (see email)
pinging machines : Perl Cookbook, 18.7. Pinging a Machine
simulating telnet connection : Perl Cookbook, 18.6. Simulating Telnet from a Program
Usenet news : Perl Cookbook, 18.4. Reading and Posting Usenet News Messages
whois service : Perl Cookbook, 18.8. Using Whois to Retrieve Information from the InterNIC

Internet TCP clients/servers : Programming Perl, 6.2.4.1. Internet TCP clients and servers

Internet-domain sockets : Perl in a Nutshell, 13. Sockets

interpolating : Programming Perl, 2.3.3.4. Interpolative context

array variables : Programming Perl, 2.3.2.5. Interpolating array values
scalar values : Programming Perl, 2.3.2.2. String literals

interpreted languages

Learning Perl, 1.4. Basic Concepts
Learning Perl on Win32 Systems, 1.1. History of Perl
Learning Perl on Win32 Systems, 1.5. Basic Concepts

interpreter, Perl

(see also command interpreters)
Advanced Perl Programming, 20.2.1.1. Multiple interpreters
Perl in a Nutshell, 3. The Perl Interpreter
command processing : Perl in a Nutshell, 3.1. Command Processing
command-line options : Perl in a Nutshell, 3.2. Command-Line Options

interpreting bytes in memory : Learning Perl on Win32 Systems, 16.2. Packing and Unpacking Binary Data

interprocess communication (IPC)

Learning Perl, 14.6. Sending and Receiving Signals
Perl in a Nutshell, 5.1. Perl Functions by Category
Programming Perl, 6.2. Cooperating with Other Processes

intersections on lists : Perl Cookbook, 4.7. Finding Elements in One Array but Not Another

introspection : (see reflection)

inverse_select() (Mail::Folder) : Perl in a Nutshell, Chapter 14, Reference: inverse_select

inverting arrays and hashes : Programming Perl, 3.2.126. reverse

inverting hashes : Perl Cookbook, 5.8. Inverting a Hash

invoke()

Button widget : Perl in a Nutshell, 18.4.1. Button Methods
Checkbutton widget : Perl in a Nutshell, 18.5.1. Checkbutton Methods
Menu widget : Perl in a Nutshell, 18.15.2. Menu Methods
Radiobutton widget : Perl in a Nutshell, 18.6.1. Radiobutton Methods
Win32::OLE module : Perl in a Nutshell, Chapter 19, Reference: Invoke

invoking/executing

format : Learning Perl, 11.3. Invoking a Format

methods : Programming Perl, 5.3.6. Method Invocation

other programs from Perl : Programming Perl, 3.2.167. system

Perl programs

Programming Perl, 1.3.1. How to Do It
Programming Perl, 6.1. Cooperating with Command Interpreters

subroutines : Learning Perl, 8.2. Invoking a User Function

IO modules : Perl in a Nutshell, 8.90. IO

IO::File module

Perl Cookbook, 7.0. Introduction
Perl Cookbook, 7.1. Opening a File
Perl in a Nutshell, 8.91. IO::File
temporary files : Perl Cookbook, 7.5. Creating Temporary Files

IO::Handle module

Perl Cookbook, 7.0. Introduction
Perl in a Nutshell, 8.92. IO::Handle

IO::Pipe module : Perl in a Nutshell, 8.93. IO::Pipe

IO::Pty module : Perl Cookbook, 15.13. Controlling Another Program with Expect

IO::Seekable module

Perl in a Nutshell, 8.94. IO::Seekable
Perl in a Nutshell, 8.95. IO::Select

IO::Select module

Advanced Perl Programming, 12.3.2. Multiplexing Using select
Advanced Perl Programming, 12.5. IO Objects and Filehandles
Perl Cookbook, 7.13. Reading from Many Filehandles Without Blocking
Perl Cookbook, 16.9. Controlling the Input, Output, and Error of Another Program

IO::Socket module

Advanced Perl Programming, 12.2. Socket API and IO::Socket

Learning Perl on Win32 Systems, C. Networking Clients

Perl in a Nutshell, 8.96. IO::Socket

Perl in a Nutshell, 13.2. The IO::Socket Module

closing socket after forking : Perl Cookbook, 17.9. Closing a Socket After Forking

IO::Socket::INET class

Perl Cookbook, 17.1. Writing a TCP Client
Perl in a Nutshell, 13.2.4. IO::Socket::INET Reference

IO::Socket::UNIX class : Perl in a Nutshell, 13.2.5. IO::Socket::UNIX Reference

UDP clients and servers : Perl Cookbook, 17.4. Setting Up a UDP Client

IO::Stty module : Perl Cookbook, 15.13. Controlling Another Program with Expect

IO objects : Advanced Perl Programming, 12.5. IO Objects and Filehandles

ioctl()

Perl Cookbook, 7.15. Determining the Number of Bytes to Read
Perl Cookbook, 10.10. Returning Failure
Perl Cookbook, 12.14. Using h2ph to Translate C #include Files
Perl in a Nutshell, Chapter 5, Reference: ioctl
Programming Perl, 3.2.77. ioctl

IP addresses : Advanced Perl Programming, 12.1. Networking Primer

determining your own : Perl Cookbook, 17.8. Finding Your Own Name and Address
DNS lookups : Perl Cookbook, 18.1. Simple DNS Lookups
expn and vrfy programs (examples) : Perl Cookbook, 18.9. Program: expn and vrfy
identifying at socket ends : Perl Cookbook, 17.7. Identifying the Other End of a Socket
multi-homed servers : Perl Cookbook, 17.14. Writing a Multi-Homed Server
packed, converting to ASCII strings : Perl Cookbook, 17.0. Introduction

-ipadx, -ipady options

grid geometry manager : Perl in a Nutshell, 18.2.2. The grid Geometry Manager
pack geometry manager : Perl in a Nutshell, 18.2.1. The pack Geometry Manager

IPC (interprocess communication)

Learning Perl, 14.6. Sending and Receiving Signals
Perl in a Nutshell, 5.1. Perl Functions by Category
Programming Perl, 6.2. Cooperating with Other Processes

IPC modules

Learning Perl on Win32 Systems, B.4. Win32 Extensions

Perl in a Nutshell, 8.97. IPC::Msg

IPC::Msg module : Perl in a Nutshell, 8.97. IPC::Msg

IPC::Open2 module

Perl Cookbook, 16.8. Controlling Input and Output of Another Program
Perl in a Nutshell, 8.98. IPC::Open2
Programming Perl, 7.2.39. IPC::Open2 - Open a Process for Both Reading and Writing

IPC::Open3 module

Perl Cookbook, 16.9. Controlling the Input, Output, and Error of Another Program
Perl in a Nutshell, 8.99. IPC::Open3
Programming Perl, 7.2.40. IPC::Open3 - Open a Process for Reading, Writing, and Error Handling

IPC::Semaphore module : Perl in a Nutshell, 8.100. IPC::Semaphore

IPC::Shareable : Perl Cookbook, 16.12. Sharing Variables in Different Processes

IPC::SysV module : Perl in a Nutshell, 8.101. IPC::SysV

"is-a" relationship : (see inheritance)

is_client_error() (HTTP::Status : Perl in a Nutshell, 17.3.4. HTTP::Status

is_empty() (HTML::Parser) : Perl in a Nutshell, Chapter 17, Reference: is_empty

is_error()

HTTP::Response module : Perl in a Nutshell, Chapter 17, Reference: is_error
HTTP::Status module : Perl in a Nutshell, 17.3.4. HTTP::Status
LWP::Simple module : Perl in a Nutshell, Chapter 17, Reference: is_error

is_fresh() (HTTP::Response) : Perl in a Nutshell, Chapter 17, Reference: is_fresh

is_info()

HTTP::Response module : Perl in a Nutshell, Chapter 17, Reference: is_info
HTTP::Status module : Perl in a Nutshell, 17.3.4. HTTP::Status

is_inside() (HTML::Parser) : Perl in a Nutshell, Chapter 17, Reference: is_inside

is_protocol_supported() (LWP::UserAgent) : Perl in a Nutshell, Chapter 17, Reference: is_protocol_supported

is_readonly() (Mail::Folder) : Perl in a Nutshell, Chapter 14, Reference: is_readonly

is_redirect()

HTTP::Response module : Perl in a Nutshell, Chapter 17, Reference: is_redirect
HTTP::Status module : Perl in a Nutshell, 17.3.4. HTTP::Status

is_safe() : Perl Cookbook, 8.17. Testing a File for Trustworthiness

is_server_error() (HTTP::Status : Perl in a Nutshell, 17.3.4. HTTP::Status

is_success()

HTTP::Response module : Perl in a Nutshell, Chapter 17, Reference: is_success
HTTP::Status module : Perl in a Nutshell, 17.3.4. HTTP::Status
LWP::Simple module : Perl in a Nutshell, Chapter 17, Reference: is_success

is_verysafe() : Perl Cookbook, 8.17. Testing a File for Trustworthiness

@ISA array

Advanced Perl Programming, 7.2.6. The Need for Inheritance
Perl Cookbook, 13.0. Introduction
Programming Perl, 5.3.4. A Class Is Simply a Package
Programming Perl, 7.2.1. AnyDBM_File - Provide Framework for Multiple DBMs

isa function

Advanced Perl Programming, 7.3. UNIVERSAL
Perl Cookbook, 13.8. Determining Subclass Membership

ISAP : Learning Perl on Win32 Systems, 1.3.1. ActiveState Perl for Win32

ISAPI extensions : Learning Perl on Win32 Systems, 18.7.2. PerlIS and PerlScript

IsClientConnected property (Response object) : Perl in a Nutshell, 20.2.2.2. Response properties

isindex() (CGI.pm) : Perl in a Nutshell, Chapter 10, Reference: isindex

IsWin95 module : Learning Perl on Win32 Systems, B.4. Win32 Extensions

IsWinNT module : Learning Perl on Win32 Systems, B.4. Win32 Extensions

Item() (Win32::OLE::Enum) : Perl in a Nutshell, 19.18.3. Win32::OLE::Enum

=item command (pod) : Perl in a Nutshell, Chapter 4, Reference: =item

item tags (Canvas widgets) : Perl in a Nutshell, 18.12.2. Item Tags and IDs

itemcget() (Canvas) : Perl in a Nutshell, 18.12.3. Canvas Methods

itemconfigure() (Canvas) : Perl in a Nutshell, 18.12.3. Canvas Methods

iterating scripts over filenames : Perl in a Nutshell, 3.2. Command-Line Options

iterations : (see arrays; lists; loops)

iterators

Advanced Perl Programming, 4.4.2. Iterators and Streams
Perl Cookbook, 4.4. Doing Something with Every Element in a List

itimer routines : Programming Perl, 3.2.5. alarm

IVs (integer values) : Advanced Perl Programming, 20.3.1.3. SVs and object pointers

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