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Index: V

arrays : (see arrays)

comma-separated (CSV)

initializing arrays with : Perl Cookbook, 4.1. Specifying a List In Your Program
parsing : Perl Cookbook, 1.15. Parsing Comma-Separated Data

converting with ASCII characters : Perl Cookbook, 1.4. Converting Between ASCII Characters and Values

definedness

Perl Cookbook, 1.0. Introduction
Perl Cookbook, 1.2. Establishing a Default Value

exchanging between scalar variables : Perl Cookbook, 1.3. Exchanging Values Without Using Temporary Variables

list : (see lists)

Perl value types

Advanced Perl Programming, 20.3. Perl Value Types
Advanced Perl Programming, 20.7. A Peek into the Future

scalar : (see scalars)

undefining : Programming Perl, 3.2.180. undef

values()

Learning Perl, 5.4.2. The values Function
Perl in a Nutshell, Chapter 5, Reference: values
Programming Perl, 3.2.187. values
Tie::IxHash module and : Perl Cookbook, 5.6. Retrieving from a Hash in Insertion Order

variable interpolation

Learning Perl, 2.6.4. Interpolation of Scalars into Strings
Programming Perl, 2.3.2.2. String literals
array variables : Learning Perl, 3.7. Variable Interpolation of Arrays
double-quoted strings and : Learning Perl, 2.3.2. Double-Quoted Strings
globbing : Learning Perl, 12.2. Globbing
regular expressions : Learning Perl, 7.4.4. Using Variable Interpolation
substitute operator and : Learning Perl, 7.5. Substitutions
system() and : Learning Perl, 14.1. Using system and exec

variable-length records/fields

Perl Cookbook, 8.9. Processing Variable-Length Text Fields
Programming Perl, 2.8. Formats

-variable option

Checkbutton widget : Perl in a Nutshell, 18.5. The Checkbutton Widget
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
Scale widget : Perl in a Nutshell, 18.13. The Scale Widget

variable part of format : Learning Perl, 11.1. What Is a Format?

variables

(see also data types)

(see also references)

Advanced Perl Programming, 1.6. A View of the Internals

Advanced Perl Programming, 20.2.1. Perl Objects

Perl in a Nutshell, 4.2.4. Variables

Programming Perl, 2.1. Lexical Texture

Programming Perl, 2.3.1. Variables

Programming Perl, 4. References and Nested Data Structures

Programming Perl, 4.3.1. Using a Variable as a Variable Name

aliases for : Programming Perl, 7.2.76. vars - Predeclare Global Variable Names

array

Learning Perl, 3.3. Variables
Programming Perl, 2.3.2.5. Interpolating array values

associative arrays (hashes)

Learning Perl, 5.2. Hash Variables
Programming Perl, 2.3.5. Hashes (Associative Arrays)

awk versus Perl : Programming Perl, 8.2.3. Awk Traps

binding to packages : Programming Perl, 3.2.184. untie

configuration : (see configuration)

control, in foreach loop : Programming Perl, 2.6.4.3. Foreach loops

declaration and scope

Perl in a Nutshell, 4.2.6. Declarations and Scope
Perl in a Nutshell, 4.7.4. Private and Local Variables
Programming Perl, 2.6. Statements and Declarations
Programming Perl, 2.6.8. Scoped Declarations
scoping functions : Perl in a Nutshell, 5.1. Perl Functions by Category

default value of : Learning Perl, 2.9. The Undefined Value

environment : Programming Perl, 2.9.4. Global Special Arrays

eval function and : Advanced Perl Programming, 5.1. The String Form: Expression Evaluation

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

per filehandle : Programming Perl, 2.9.2. Per-Filehandle Special Variables

filehandles as

Perl Cookbook, 7.0. Introduction
Perl Cookbook, 7.16. Storing Filehandles in Variables

format : Programming Perl, 2.8.1. Format Variables

global

Advanced Perl Programming, 3.1. Perl Variables, Symbol Table, and Scoping
Programming Perl, 2.9.3. Global Special Variables
Programming Perl, 7.2.76. vars - Predeclare Global Variable Names

Hungarian notation : Advanced Perl Programming, 1.2.4. Dereferencing Multiple Levels of Indirection

instance : (see instance variables)

interpolation : Programming Perl, 1.2.1.1. Singularities

interpretation : Programming Perl, 1.2.1.1. Singularities

lexical

Advanced Perl Programming, 3.1.1. Lexical Variables
Advanced Perl Programming, 6.1.1. Packages and Variables

local

Advanced Perl Programming, 1.2.3. References to Anonymous Storage
Advanced Perl Programming, 3.2.3. Aliasing Problem: Variable Suicide
Advanced Perl Programming, 4.3.1. Closures, Behind the Scenes
Advanced Perl Programming, 6.4. Privacy
Advanced Perl Programming, 20.3.5.2. How local and my work
Perl in a Nutshell, 4.2.6. Declarations and Scope
Perl in a Nutshell, 4.7.4. Private and Local Variables
Programming Perl, 3.2.87. local
Programming Perl, 8.2.2. Frequently Ignored Advice
for modules : Perl Cookbook, 12.4. Making Variables Private to a Module
for subroutines : Perl Cookbook, 10.2. Making Variables Private to a Function

loop (iterator) variables : Perl Cookbook, 4.4. Doing Something with Every Element in a List

magic

Advanced Perl Programming, 20.3.6. Magic Variables
Perl Cookbook, 13.15. Creating Magic Variables with tie

modules/packages and : Advanced Perl Programming, 6.1. Basic Package

monitoring (example) : Advanced Perl Programming, 9.5. Example: Monitoring Variables

my : (see my declarations)

my variables : Advanced Perl Programming, 20.3.5.2. How local and my work

names for

Advanced Perl Programming, 3.2.2.3. Friendly predefined variables with aliases
Learning Perl, 1.5.8. Making It Fair for the Rest
Learning Perl on Win32 Systems, 1.6.8. Making It Fair for the Rest
Programming Perl, 1.2.1. Nouns
Programming Perl, 8.4. Programming with Style

package, displaying : Programming Perl, 8.1.1. Debugger Commands

pattern match variables : Perl in a Nutshell, 4.6.7. Pattern Match Variables

predefined : Learning Perl on Win32 Systems, D.6. Many, Many Predefined Variables

private : (see variables, local)

qualifying names of : Programming Perl, 7.2.61. Symbol - Generate Anonymous Globs; Qualify Variable Names

read-only : Advanced Perl Programming, 3.3.2. Constants

references/pointers : (see references)

resetting values of : Programming Perl, 3.2.124. reset

scalar

(see also scalars)
Learning Perl, 2.5. Scalar Variables
Perl in a Nutshell, 4.2.5. Scalar and List Contexts

sharing among different processes : Perl Cookbook, 16.12. Sharing Variables in Different Processes

special

Perl in a Nutshell, 4.4. Special Variables
Programming Perl, 2.9. Special Variables

static allocation : Advanced Perl Programming, 1.1. Referring to Existing Variables

strings : (see strings)

subroutines and : Learning Perl, 8.1. Defining a User Function

translating with : Programming Perl, 2.4.2. Pattern-Matching Operators

tying

Programming Perl, 3.2.171. tie
Programming Perl, 5.4. Using Tied Variables

use strict 'vars' : Programming Perl, 7.2.59. strict - Restrict Unsafe Constructs

varable suicide

Advanced Perl Programming, 3. Typeglobs and Symbol Tables
Advanced Perl Programming, 3.2.3. Aliasing Problem: Variable Suicide

Variant data structure

Learning Perl on Win32 Systems, 19.4. Variants
Perl in a Nutshell, 19.18.4. Win32::OLE::Variant

vars module

Perl in a Nutshell, 8.166. vars
Programming Perl, 5.4.1. Tying Scalars
Programming Perl, 7.2.76. vars - Predeclare Global Variable Names

vbsh program (example) : Perl Cookbook, 15.11. Editing Input

vec()

Perl in a Nutshell, Chapter 5, Reference: vec
Programming Perl, 3.2.188. vec

vectors, strings as : Programming Perl, 3.2.188. vec

verbatim paragraphs (pod) : Perl in a Nutshell, 4.11. Pod

-verbose option (perlcc) : Perl in a Nutshell, 3.4. The Perl Compiler

verbose warning messages : Programming Perl, 7.2.10. diagnostics - Force Verbose Warning Diagnostics

verbs : Programming Perl, 1.2.2. Verbs

verify() (Net::SMTP) : Perl in a Nutshell, Chapter 14, Reference: verify

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

VERSION() (UNIVERSAL)

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

$VERSION variable (use pragma) : Perl Cookbook, 12.1. Defining a Module's Interface

version, module

Perl in a Nutshell, 2.4.1. Locating modules
Programming Perl, 7.2.15.2. Module version checking

version, Perl : Programming Perl, 2.9.3. Global Special Variables

obtaining current : Perl in a Nutshell, 2.1. The CPAN Architecture
printing : Perl in a Nutshell, 3.2. Command-Line Options
for Win32 systems : Perl in a Nutshell, 2.3.2. Installing on Win32

vertical bar : (see | (vertical bar))

Very Bad Programming Style, example of : Learning Perl on Win32 Systems, 3.4.2. Array Element Access

vi editor, debugger and : Programming Perl, 8.1.5. Editor Support for Debugging

virtual tables : Advanced Perl Programming, 20.3.6. Magic Variables

virtual web documents : Perl in a Nutshell, 9.1.2. Creating Virtual Documents

visit function

Advanced Perl Programming, 17.3.2. Intermediate Perl Code
Advanced Perl Programming, 17.4.1. AST Module

Visual Basic

Advanced Perl Programming, Why Perl?
Learning Perl on Win32 Systems, 19.5.1. Translating Samples from Visual Basic

visual bell : Perl Cookbook, 15.7. Ringing the Terminal Bell

-visual option

Frame widget : Perl in a Nutshell, 18.17. The Frame Widget
toplevel widget : Perl in a Nutshell, 18.18. The Toplevel Widget

VMS, Perl under : Learning Perl, 1.3. Availability

vmsish module : Perl in a Nutshell, 8.167. vmsish

void context : Programming Perl, 2.3.3.3. Void context

von Neumann, John : Learning Perl, Foreword

vowels, matching : Learning Perl, 7.3.1. Single-Character Patterns

vrfy program (example) : Perl Cookbook, 18.9. Program: expn and vrfy

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