Book Home

Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Index: V

v-strings

in $^V: 28.2. Special Variables in Alphabetical Order
2.6.7. V-String Literals

-v (version) command-line switch: 19.1.3. Switches

values

arrays (see arrays)
hashes, sorting: 29.2.79. keys
list (see list values)
referencing: 8.1. What Is a Reference?
scalar (see scalar values)
scope, confining to: 4.8.1. Scoped Variable Declarations
undefined, truth value of: 1.6.1. What Is Truth?
undefining: 29.2.187. undef
variables vs.: 1.2. Natural and Artificial Languages

values function: 14.3.1. Hash-Tying Methods

29.2.194. values

variable interpolation: 2.6.2. String Literals

glob operator, using: 2.11.3. Filename Globbing Operator

variable-length records: 7. Formats

variable-length UTF-8 characters: 15.1. Building Character

variables: 2.3. Built-in Data Types

2.4. Variables

3.1. Terms and List Operators (Leftward)

8. References

8.3.1. Using a Variable as a Variable Name

anonymous: 8.2.2. Anonymous Data

array: 2.6.5. Interpolating Array Values

attributes, getting and setting: 32.1.13. Perl Language Extensions and Internals

binding to packages: 29.2.191. untie

B::Xref module, cross-references with C: 18.6. Code Development Tools

class: 12.8. Managing Class Data

condition variables: 17.2.2.6. Condition variables

control, in foreach loop: 4.4.3. foreach Loops

debugger, customizing: 20.3.2. Customizing with Init Files

declaring: 4. Statements and Declarations

4.8.1. Scoped Variable Declarations

declaring global: 4.8.3. Lexically Scoped Global Declarations: our

dumping with V command: 10.1. Symbol Tables

environment: 28.2. Special Variables in Alphabetical Order

format: 7.1. Format Variables

fully-qualified, accessing from outside package: 23.3.1.1. Restricting namespace access

global (see global)

hash: 2.9. Hashes

initializing before calling subroutines: 6.2.3. Scoping Issues

interpolating

with double quotes: 5.2. Pattern-Matching Operators
into patterns: 5.2. Pattern-Matching Operators

interpolation: 1.2.1.1. Singularities

pattern matching, controlling with: 5.9.2. Variable Interpolation

lexical scoping: 29.2.99. my

local

common programming errors with: 24.1.1. Universal Blunders
my declarations, using instead of local function: 24.1.2. Frequently Ignored Advice

localizing existing: 29.2.87. local

modules, exporting to programs: 11.2.1. Module Privacy and the Exporter

my (see my declarations)

8.3.6. Other Tricks You Can Do with Hard References
10. Packages

names for: 1.2.1. Variable Syntax

24.3. Programming with Style

names in nested symbol tables: 2.5. Names

our (see our declarations)

package, displaying: 20.2.4. Display

package, memory usage: 20.3.3. Debugger Options

package variables: 2.5. Names

packages, associating with: 10. Packages

Perl vs. C, names of: 24.1.3. C Traps

private (see local variables)

repeated substitutions, performing on: 5.2.3.1. Modifying strings en passant

resetting values of: 29.2.130. reset

scoped, lexical scope: 4.8.2. Lexically Scoped Variables: my

scoping, strict pragma, use of: 1.2.1.4. Simplicities

shell programming, Perl vs.: 24.1.4. Shell Traps

special: 28.1.6. Per-Package Special Functions

strings of, matching against known strings: 5.9.2. Variable Interpolation

taint and: 23.1. Handling Insecure Data

translating with: 5.2.4. The tr/// Operator (Transliteration)

tying: 14. Tied Variables

29.2.178. tie
arrays: 14.2. Tying Arrays
filehandles: 14.4. Tying Filehandles
hashes: 14.3. Tying Hashes
scalars: 14.1. Tying Scalars
untying trap: 14.5. A Subtle Untying Trap

uninitialized: 1.2.1.1. Singularities

values, assignment and: 1.5.3. Assignment Operators

values vs.: 1.2. Natural and Artificial Languages

watch points, placing on: 14.6. Tie Modules on CPAN

variadic functions in Perl: 6.2. Semantics

vars modle (obsolete): 32.1.13. Perl Language Extensions and Internals

vec function: 29.2.195. vec

vectors, strings as: 29.2.162. sprintf

29.2.195. vec

verbosity

debugger, setting levels of: 20.3.3. Debugger Options
warnings, forcing in: 32.1.13. Perl Language Extensions and Internals

verbs: 1.2.2. Verbs

verbs, packages, handling of: 1.2.1.4. Simplicities

versions, Perl 28.2. Special Variables in Alphabetical Order

of Perl ($^V): 28.2. Special Variables in Alphabetical Order
module, checking for: 11.2.1.2. Version checking
changes between release 4 and 5: 24.1.5. Previous Perl Traps
placing in #! line: 19.1. Command Processing
specifying: 19.1.2. Location of Perl

VERSION method: 12.5.3. UNIVERSAL: The Ultimate Ancestor Class

vi editor

debugger, support for: 20.3.1. Editor Support for Debugging
regular expressions, use of: 1.7. Regular Expressions

video, Perl modules for: 22.1. The CPAN modules Directory

virtual circuits (as TCP streams): 16.5. Sockets

virtual machine, Perl: 18.3. Executing Your Code

VMS operating system

File::Spec::VMS module: 32.1.4. Filenames, Filesystems, and File Locking
invoking Perl applications on: 19.1.1. #! and Quoting on Non-Unix Systems

void context: 1.5.4. Unary Arithmetic Operators

2.7.3. Void Context
2.8.1. List Assignment
29.2.198. wantarray
recognizing in debugger: 20.1. Using the Debugger

vowel sounds, classifying syllabaries according to: 5.4.3.2. Standard Unicode properties

VRML, Perl modules for: 22.1. The CPAN modules Directory

Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z