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Index: V

-validate option

ConfigSpecs method and: 14.3.6.1. ConfigSpecs Examples (Mastering Perl/Tk)

Entry widgets and: 5.1.2. Label Options (Mastering Perl/Tk)

Tk::NavListbox and: 14.5.1. Tk::NavListbox (Mastering Perl/Tk)

-validatecommand option

callbacks and: 15.1. Creating a Callback (Mastering Perl/Tk)

Entry widgets and: 5.1.2. Label Options (Mastering Perl/Tk)

5.1.2. Label Options (Mastering Perl/Tk)

v command (Perl debugger): 6.2. Debugger Commands (Perl in a Nutshell)

-V option

dprofpp: 6.5. The Perl Profiler (Perl in a Nutshell)

v-strings

in $^V: 28.2. Special Variables in Alphabetical Order (Programming Perl)

v-strings (vector or version): 2.6.7. V-String Literals (Programming Perl)

Glossary (Programming Perl)

-V (version) command-line switch: 19.1.3. Switches (Programming Perl)

valid screen distance (see screen units)

validating parsers: 3.1. XML Parsers (Perl & XML)

3.7. Document Validation (Perl & XML)

validation (document): 3.7. Document Validation (Perl & XML)

valof( ) (Win32::OLE): 23.2.2. Win32::OLE Functions (Perl in a Nutshell)

-value option

Button widgets and: 4.3. Table of Options for Button-Type Widgets (Mastering Perl/Tk)

Menubutton widget: 21.14.1. Menu Item Options (Perl in a Nutshell)

ProgressBar widgets and: 23.10.1. ProgressBar Options (Mastering Perl/Tk)

Radiobutton widget: 21.6. The Radiobutton Widget (Perl in a Nutshell)

Radiobutton widgets and: 4.8. Radiobutton Values (Mastering Perl/Tk)

Radiobuttons widgets and: 4.2. Standard Options for Each Button Type (Mastering Perl/Tk)

value property of Attr class (DOM): 7.2.9.1. Properties (Perl & XML)

Value( ) (Win32::OLE::Variant): 23.4.1. Win32::OLE::Variant Methods (Perl in a Nutshell)

values: 1.2.1. Problem (Perl Cookbook)

arrays (see arrays)

changing while copying: Glossary (Programming Perl)

comma-separated (CSV)

initializing arrays with: 4.1.2. Solution (Perl Cookbook)

parsing: 1.15.1. Problem (Perl Cookbook)

converting with ASCII characters: 1.4.1. Problem (Perl Cookbook)

definedness: 1.0. Introduction (Perl Cookbook)

1.2.3. Discussion (Perl Cookbook)

displayed versus stored: 10.5. Displayed Versus Stored Value (Mastering Perl/Tk)

displaying increments: 10.7. Displaying Value Increments (Mastering Perl/Tk)

exchanging between scalar variables: 1.3.1. Problem (Perl Cookbook)

hashes, sorting: 29.2.79. keys (Programming Perl)

list (see list values)

list, assigning to variables: 3.4. List Assignment (Learning Perl)

of short-circuit logical operators: 10.9.1. The Value of a Short-Circuit Operator (Learning Perl)

order of precedence: 16. User Customization (Mastering Perl/Tk)

referencing: 8.1. What Is a Reference? (Programming Perl)

saving using local operator: 4.7. The local Operator (Learning Perl)

scalar (see scalar values)

scalar, assigning to variables: 2.5.2. Scalar Assignment (Learning Perl)

scope, confining to: 4.8.1. Scoped Variable Declarations (Programming Perl)

setting for Scales: 10.4. Minimum and Maximum Values (Mastering Perl/Tk)

10.12. Setting the Value of a Scale (Mastering Perl/Tk)

undefined, truth value of: 1.6.1. What Is Truth? (Programming Perl)

undefining: 29.2.187. undef (Programming Perl)

variables vs.: 1.2. Natural and Artificial Languages (Programming Perl)

values( ), Tie::IxHash module and: 5.6.3. Discussion (Perl Cookbook)

Values( ) (Data::Dumper)): 8.50. Data::Dumper (Perl in a Nutshell)

values function: 5.3.1. The keys and values Functions (Learning Perl)

14.3.1. Hash-Tying Methods (Programming Perl)

29.2.194. values (Programming Perl)

values, queries in named values: 4.1.5. Queries (Perl & LWP)

value=string attribute, option element: 5.4.11. Select Elements and Option Elements (Perl & LWP)

variable interpolation: 2.3.2. Double-Quoted String Literals (Learning Perl)

2.6.1. Interpolation of Scalar Variables into Strings (Learning Perl)

2.6.1. Interpolation of Scalar Variables into Strings (Learning Perl)

2.6.2. String Literals (Programming Perl)

glob operator, using: 2.11.3. Filename Globbing Operator (Programming Perl)

variable-length parameter lists: 4.8. Variable-length Parameter Lists (Learning Perl)

variable-length records: 7. Formats (Programming Perl)

variable-length text databases: 16.4. Variable-length (Text) Databases (Learning Perl)

variable-length text fields: 8.9.1. Problem (Perl Cookbook)

variable-length UTF-8 characters: 15.1. Building Character (Programming Perl)

-variable option

BrowseEntry widgets and: 23.6. The BrowseEntry Widget (Mastering Perl/Tk)

Button widgets and: 4.3. Table of Options for Button-Type Widgets (Mastering Perl/Tk)

Checkbutton and Radiobutton widgets: 4.6. Checkbutton and Radiobutton Indicator Status (Mastering Perl/Tk)

Checkbutton widget: 21.5. The Checkbutton Widget (Perl in a Nutshell)

Checkbuttons and: 4.2. Standard Options for Each Button Type (Mastering Perl/Tk)

12.2.1. Menubars the Clunky, Casual, Old-Fashioned Way (Mastering Perl/Tk)

Entry widgets and: 5.1.2. Label Options (Mastering Perl/Tk)

Menubutton widget: 21.14.1. Menu Item Options (Perl in a Nutshell)

Optionmenu widget: 21.16. The Optionmenu Widget (Perl in a Nutshell)

ProgressBar widgets and: 23.10.1. ProgressBar Options (Mastering Perl/Tk)

Radiobutton widget: 21.6. The Radiobutton Widget (Perl in a Nutshell)

Radiobuttons and: 4.2. Standard Options for Each Button Type (Mastering Perl/Tk)

4.8. Radiobutton Values (Mastering Perl/Tk)

Scale widget: 21.13. The Scale Widget (Perl in a Nutshell)

Scale widgets and: 10.1. Creating a Scale (Mastering Perl/Tk)

Thermometer example: 14.4.1. Tk::Thermometer (Mastering Perl/Tk)

Tie::Watch and: 15.5.1. Tie::Watch (Mastering Perl/Tk)

Tk::LCD widgets and: 14.5.3. Tk::LCD (Mastering Perl/Tk)

14.5.3. Tk::LCD (Mastering Perl/Tk)

variables (see -labelVariable option also -labelVariable option)

4.2.5. Variables (Perl in a Nutshell)

2.3. Built-in Data Types (Programming Perl)

2.4. Variables (Programming Perl)

3.1. Terms and List Operators (Leftward) (Programming Perl)

8. References (Programming Perl)

8.3.1. Using a Variable as a Variable Name (Programming Perl)

1.6. Debugging and PrototypingPerl/Tk Programs (Mastering Perl/Tk)

11.3.4. Adding a Label to a Frame (Mastering Perl/Tk)

(see also -labelVariable option)

$| as: 1.6. Debugging and PrototypingPerl/Tk Programs (Mastering Perl/Tk)

-labelVariable option and: 11.3.4. Adding a Label to a Frame (Mastering Perl/Tk)

altering: 2.5.3. Binary Assignment Operators (Learning Perl)

anonymous: 8.2.2. Anonymous Data (Programming Perl)

array: 2.6.5. Interpolating Array Values (Programming Perl)

assigning contents to: 5.2.3. Assigning the Entry's Contents to a Variable (Mastering Perl/Tk)

assigning list values to: 3.4. List Assignment (Learning Perl)

assigning scalar values to: 2.5.2. Scalar Assignment (Learning Perl)

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

binding to packages: 29.2.191. untie (Programming Perl)

builtin: 9.5.2. The Automatic Match Variables (Learning Perl)

B::Xref module, cross-references with C: 18.6. Code Development Tools (Programming Perl)

Checkbutton and Radiobutton widgets and: 4.9. The -command Option (Mastering Perl/Tk)

class: 12.8. Managing Class Data (Programming Perl)

condition variables: 17.2.2.6. Condition variables (Programming Perl)

control, in foreach loop: 4.4.3. foreach Loops (Programming Perl)

debugger, customizing: 20.3.2. Customizing with Init Files (Programming Perl)

declaration and scope: 4.2.7. Declarations and Scope (Perl in a Nutshell)

4.7.4. Private and Local Variables (Perl in a Nutshell)

scoping functions: 5.1. Perl Functions by Category (Perl in a Nutshell)

declaring: 1.4.2. What's Inside That Program? (Learning Perl)

4. Statements and Declarations (Programming Perl)

4.8.1. Scoped Variable Declarations (Programming Perl)

declaring global: 4.8.3. Lexically Scoped Global Declarations: our (Programming Perl)

dumping with V command: 10.1. Symbol Tables (Programming Perl)

environment: 14.3. The Environment Variables (Learning Perl)

28.2. Special Variables in Alphabetical Order (Programming Perl)

expanding in user input: 1.8.1. Problem (Perl Cookbook)

filehandles as: 7.0.1. Getting a Handle on the File (Perl Cookbook)

7.16.1. Problem (Perl Cookbook)

format: 7.1. Format Variables (Programming Perl)

fully-qualified, accessing from outside package: 23.3.1.1. Restricting namespace access (Programming Perl)

global (see global)

\\> virtual event: 12.7. Menu Virtual Events (Mastering Perl/Tk)

hash: 2.9. Hashes (Programming Perl)

HOME environment variable: 20.1.2. Tk::Receive (Mastering Perl/Tk)

initializing before calling subroutines: 6.2.3. Scoping Issues (Programming Perl)

interpolating

with double quotes: 5.2. Pattern-Matching Operators (Programming Perl)

into patterns: 5.2. Pattern-Matching Operators (Programming Perl)

interpolation: 1.2.1.1. Singularities (Programming Perl)

pattern matching, controlling with: 5.9.2. Variable Interpolation (Programming Perl)

lexical: 15.1.1. Callbacks and Closures (Mastering Perl/Tk)

lexical scoping: 29.2.99. my (Programming Perl)

local

common programming errors with: 24.1.1. Universal Blunders (Programming Perl)

my declarations, using instead of local function: 24.1.2. Frequently Ignored Advice (Programming Perl)

local vs. private: 4.2.7. Declarations and Scope (Perl in a Nutshell)

4.7.4. Private and Local Variables (Perl in a Nutshell)

localizing existing: 29.2.87. local (Programming Perl)

loop (iterator) variables: 4.4.3. Discussion (Perl Cookbook)

magic: 13.15.1. Problem (Perl Cookbook)

match: 9.5. The Match Variables (Learning Perl)

menubar example: 12.2.2. Menubars the Slick, Sophisticated, New-Fashioned Way (Mastering Perl/Tk)

modules, exporting to programs: 11.2.1. Module Privacy and the Exporter (Programming Perl)

my (see my declarations)

8.3.6. Other Tricks You Can Do with Hard References (Programming Perl)

10. Packages (Programming Perl)

names for: 1.2.1. Variable Syntax (Programming Perl)

24.3. Programming with Style (Programming Perl)

names in nested symbol tables: 2.5. Names (Programming Perl)

names of enclosed in curly braces: 2.6.1. Interpolation of Scalar Variables into Strings (Learning Perl)

our (see our declarations)

package, displaying: 20.2.4. Display (Programming Perl)

package, memory usage: 20.3.3. Debugger Options (Programming Perl)

package variables: 2.5. Names (Programming Perl)

packages, associating with: 10. Packages (Programming Perl)

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

Perl vs. C, names of: 24.1.3. C Traps (Programming Perl)

private (see local variables)

private for modules: 12.4.1. Problem (Perl Cookbook)

private, for subroutines: 10.2.1. Problem (Perl Cookbook)

repeated substitutions, performing on: 5.2.3.1. Modifying strings en passant (Programming Perl)

resetting values of: 29.2.130. reset (Programming Perl)

scalar: 1.3.2. Creating Widgets (Mastering Perl/Tk)

4.4. Displaying Text on Buttons (Mastering Perl/Tk)

13.1.1. The configure Method (Mastering Perl/Tk)

scalar and list context: 4.2.6. Scalar and List Contexts (Perl in a Nutshell)

scalars (see scalars)

scoped

lexical scope: 4.8.2. Lexically Scoped Variables: my (Programming Perl)

scoping, strict pragma, use of: 1.2.1.4. Simplicities (Programming Perl)

sharing among different processes: 16.12.1. Problem (Perl Cookbook)

shell programming, Perl vs.: 24.1.4. Shell Traps (Programming Perl)

special: 28.1.6. Per-Package Special Functions (Programming Perl)

special (predefined): 4.4. Special Variables (Perl in a Nutshell)

strings (see strings)

strings of, matching against known strings: 5.9.2. Variable Interpolation (Programming Perl)

taint and: 23.1. Handling Insecure Data (Programming Perl)

Tcl and: 20.2.3. Tcl/Tk Master Processor Code (Mastering Perl/Tk)

tied: B.21. Tied Variables (Learning Perl)

tracing: 15.5. Tracing Perl/Tk Variables (Mastering Perl/Tk)

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

tying: 14. Tied Variables (Programming Perl)

29.2.178. tie (Programming Perl)

arrays: 14.2. Tying Arrays (Programming Perl)

filehandles: 14.4. Tying Filehandles (Programming Perl)

hashes: 14.3. Tying Hashes (Programming Perl)

scalars: 14.1. Tying Scalars (Programming Perl)

untying trap: 14.5. A Subtle Untying Trap (Programming Perl)

undef value and: 2.11. The undef Value (Learning Perl)

uninitialized: 1.2.1.1. Singularities (Programming Perl)

value of, saving: 4.7. The local Operator (Learning Perl)

values, assignment and: 1.5.3. Assignment Operators (Programming Perl)

values vs.: 1.2. Natural and Artificial Languages (Programming Perl)

watch points, placing on: 14.6. Tie Modules on CPAN (Programming Perl)

:variables tag: 15.2.2.1. The exporter tag :variables (Mastering Perl/Tk)

23.1.4. Exporter Tags (Mastering Perl/Tk)

variadic functions in Perl: 6.2. Semantics (Programming Perl)

Variant data structure: 23.4. Win32::OLE::Variant (Perl in a Nutshell)

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

vars module: 8.232. vars (Perl in a Nutshell)

vars pragma: B.6.5. The vars Pragma (Learning Perl)

vbsh program (example): 15.11.3. Discussion (Perl Cookbook)

vec( ): 5. Function Reference (Perl in a Nutshell)

29.2.195. vec (Programming Perl)

vec operator: B.11. Bits and Pieces (Learning Perl)

vectors, strings as: 29.2.162. sprintf (Programming Perl)

29.2.195. vec (Programming Perl)

verbatim paragraphs (pod): 4.13. Pod (Perl in a Nutshell)

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

verbosity

debugger, setting levels of: 20.3.3. Debugger Options (Programming Perl)

warnings, forcing in: 32.1.13. Perl Language Extensions and Internals (Programming Perl)

verbs: 1.2.2. Verbs (Programming Perl)

packages, handling of: 1.2.1.4. Simplicities (Programming Perl)

verify( ) (Net::SMTP): 16.1.2.1. Net::SMTP methods (Perl in a Nutshell)

version 1.3.1. Do You Need To Install Anything? (Mastering Perl/Tk)

14.1. A Mega-Widget Quick-Start (Mastering Perl/Tk)

module, checking for: 11.2.1.2. Version checking (Programming Perl)

of Perl ($^V): 28.2. Special Variables in Alphabetical Order (Programming Perl)

of Perl

for Win32 systems: 2.3.2. Installing on Win32 (Perl in a Nutshell)

obtaining current: 2.1. The CPAN Architecture (Perl in a Nutshell)

placing in #! line: 19.1. Command Processing (Programming Perl)

specifying: 19.1.2. Location of Perl (Programming Perl)

Perl, changes between release 4 and 5: 24.1.5. Previous Perl Traps (Programming Perl)

VERSION( ) (UNIVERSAL): 13.8.3. Discussion (Perl Cookbook)

VERSION method: 12.5.3. UNIVERSAL: The Ultimate Ancestor Class (Programming Perl)

version method (Net::LDAP): 19.4. Net::LDAP Methods (Perl in a Nutshell)

version, Perl: 28.2. Special Variables in Alphabetical Order (Programming Perl)

$VERSION variable (use pragma): 12.1.3. Discussion (Perl Cookbook)

Version( ) (Win32::Internet): 22.7.1. General Internet Methods (Perl in a Nutshell)

versions of Perl modules: 2.4.1. Locating Modules (Perl in a Nutshell)

vertical bar (|)

format fieldholders: 4.12. Formats (Perl in a Nutshell)

OR bitwise operator: 4.5.10. Bitwise Operators (Perl in a Nutshell)

|| operator (see OR operator)

10.9. Logical Operators (Learning Perl)

Perl debugger command: 6.2. Debugger Commands (Perl in a Nutshell)

regular expression metacharacter: 4.6.2. Regular Expression Syntax (Perl in a Nutshell)

|= (assignment) operator: 4.5.6. Assignment Operators (Perl in a Nutshell)

|| Perl debugger command: 6.2. Debugger Commands (Perl in a Nutshell)

||= (assignment) operator: 4.5.6. Assignment Operators (Perl in a Nutshell)

1.2.2. Solution (Perl Cookbook)

1.2.3. Discussion (Perl Cookbook)

vi editor

debugger, support for: 20.3.1. Editor Support for Debugging (Programming Perl)

regular expressions, use of: 1.7. Regular Expressions (Programming Perl)

vi text editor: 1.4. How Do I Make a Perl Program? (Learning Perl)

video, Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)

viewable method: 13.11.7. Is the Widget Viewable? (Mastering Perl/Tk)

virtual circuits (as TCP streams): 16.5. Sockets (Programming Perl)

virtual desktops, coordinates for: 13.10.4. Virtual Desktop Coordinates (Mastering Perl/Tk)

virtual events

binding to class methods: 13.14. Clipboard and Selection Methods (Mastering Perl/Tk)

Listbox widgets and: 7.18. Listbox Virtual Events (Mastering Perl/Tk)

menus: 12.7. Menu Virtual Events (Mastering Perl/Tk)

modifiers and: 15.2.1. Event Descriptor Syntax (Mastering Perl/Tk)

synthesizing: 15.8. Synthesizing Virtual Events (Mastering Perl/Tk)

TextUndo widgets and: 8.16.1. Setting and Getting the Gravity (Mastering Perl/Tk)

virtual machine, Perl: 18.3. Executing Your Code (Programming Perl)

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

Visibility event: 15.2.1.2. Event descriptor types (Mastering Perl/Tk)

15.6. Nonblocking Wait Activities (Mastering Perl/Tk)

visual bell: 15.7.3. Discussion (Perl Cookbook)

visual method: 13.11.5. Color Type (Mastering Perl/Tk)

-visual option: 11.3. Options (Mastering Perl/Tk)

11.3.6. Colormap Complications (Mastering Perl/Tk)

Frame widget: 21.17. The Frame Widget (Perl in a Nutshell)

toplevel widget: 21.18. The Toplevel Widget (Perl in a Nutshell)

visualid method: 13.11.5. Color Type (Mastering Perl/Tk)

visualsavailable method: 13.11.5. Color Type (Mastering Perl/Tk)

VMS operating system

File::Spec::VMS module: 32.1.4. Filenames, Filesystems, and File Locking (Programming Perl)

invoking Perl applications on: 19.1.1. #! and Quoting on Non-Unix Systems (Programming Perl)

vmsish module: 8.233. vmsish (Perl in a Nutshell)

void context: 4.4. Return Values (Learning Perl)

1.5.4. Unary Arithmetic Operators (Programming Perl)

2.7.3. Void Context (Programming Perl)

2.8.1. List Assignment (Programming Perl)

29.2.198. wantarray (Programming Perl)

Glossary (Programming Perl)

recognizing in debugger: 20.1. Using the Debugger (Programming Perl)

vowel sounds, classifying syllabaries according to: 5.4.3.2. Standard Unicode properties (Programming Perl)

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

VRML, Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)

Vromans, Johan: 1.3.3. Are There Any Other Kinds of Support? (Learning Perl)

vrootheight method: 13.10.4. Virtual Desktop Coordinates (Mastering Perl/Tk)

vrootwidth method: 13.10.4. Virtual Desktop Coordinates (Mastering Perl/Tk)

vrootx method: 13.10.4. Virtual Desktop Coordinates (Mastering Perl/Tk)

vrooty method: 13.10.4. Virtual Desktop Coordinates (Mastering Perl/Tk)

VTABLES (vector tables): 21.2.2. Square.xs (Mastering Perl/Tk)

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