Index: O - e-Reading Library
start page | rating of books | rating of authors | reviews | copyrights
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: O
- -offset option: 8.5.1. Tag Options (Mastering Perl/Tk)
- 17.11. Tile and Transparent Images (Mastering Perl/Tk)
- -opencmd option: 18.4.3. The Tree Widget (Mastering Perl/Tk)
- . operator: 2.3.3. String Operators (Learning Perl)
- -option option: 14.3.8.2. Subroutine Callback (Mastering Perl/Tk)
- -options option: 12.6.1. Tk::Optionmenu (Mastering Perl/Tk)
- 14.1. A Mega-Widget Quick-Start (Mastering Perl/Tk)
- -outline option
- Canvas widgets and: 9.5.1. Common Canvas Dash, Stipple, and Tile Options (Mastering Perl/Tk)
- createArc method and: 9.6.1. The Arc Item (Mastering Perl/Tk)
- createOval method and: 9.6.5. The Oval Item (Mastering Perl/Tk)
- createPolygon method and: 9.5.3. Canvas Widget Option List (Mastering Perl/Tk)
- createRectangle method and: 9.6.7. The Rectangle Item (Mastering Perl/Tk)
- -outlinestipple option: 9.5.1. Common Canvas Dash, Stipple, and Tile Options (Mastering Perl/Tk)
- 9.6.1. The Arc Item (Mastering Perl/Tk)
- -outlinetile option: 9.5.1. Common Canvas Dash, Stipple, and Tile Options (Mastering Perl/Tk)
- -overanchor option: 12.5.2. The Popup Method (Mastering Perl/Tk)
- -overstrike option: 3.2. Dissecting a Font (Mastering Perl/Tk)
- 8.5.1. Tag Options (Mastering Perl/Tk)
- o command (CPAN.pm): 2.4.4. Installing Modules with the CPAN Module (Perl in a Nutshell)
- O command (Perl): 1.6. Debugging and PrototypingPerl/Tk Programs (Mastering Perl/Tk)
- O command (Perl debugger): 6.2. Debugger Commands (Perl in a Nutshell)
- -o (effective UID) file test: 3.10. Named Unary and File Test Operators (Programming Perl)
- -O file test operator: 4.5.8. File Test Operators (Perl in a Nutshell)
- O_ flags: 7.1.3. Discussion (Perl Cookbook)
- O_NONBLOCK option: 7.14.2. Solution (Perl Cookbook)
- /o modifier
- recompilation, suppressing with: 5.9.2. Variable Interpolation (Programming Perl)
- O module: 8.165. O (Perl in a Nutshell)
- 18.4. Compiler Backends (Programming Perl)
- 18.6. Code Development Tools (Programming Perl)
- 32.1.19. Perl Compiler and Code Generator (Programming Perl)
- -O option (dprofpp): 6.5. The Perl Profiler (Perl in a Nutshell)
- -o option (perlcc): 3.4. The Perl Compiler (Perl in a Nutshell)
- /o pattern modifier: 5.2.1. Pattern Modifiers (Programming Perl)
- 5.2.1. Pattern Modifiers (Programming Perl)
- 5.2.2. The m// Operator (Matching) (Programming Perl)
- 5.2.3. The s/// Operator (Substitution) (Programming Perl)
- o pattern match modifier: 4.6.1. Pattern-Matching Operators (Perl in a Nutshell)
- /o pattern-matching modifier: 6.10.2. Solution (Perl Cookbook)
- -O (real UID) file test: 3.10. Named Unary and File Test Operators (Programming Perl)
- OASIS-Open: 3.7.2. Schemas (Perl & XML)
- object
- classes: 10. Packages (Programming Perl)
- methods: 8.3.4. Using Object Methods (Programming Perl)
- object attributes: 13.0.5. Some Notes on Object Terminology (Perl Cookbook)
- 13.3.1. Problem
(Perl Cookbook)
- inheritance and: 13.12.1. Problem
(Perl Cookbook)
- object methods: 13.0.2. Methods (Perl Cookbook)
- 13.0.5. Some Notes on Object Terminology (Perl Cookbook)
- locking: 17.2.2.5. Locking methods (Programming Perl)
- Thread objects: 17.2.1. The Thread Module (Programming Perl)
- object-oriented interface: 1.5.1. The Object-Oriented Interface (Perl & LWP)
- object-oriented modules: 11.1. Using Modules (Programming Perl)
- method calls, allowing: 11.2. Creating Modules (Programming Perl)
- object-oriented (OO) programming: B.20.2. Object-Oriented Programming (Learning Perl)
- Object-Oriented Perl (Conway): 14.1. A Mega-Widget Quick-Start (Mastering Perl/Tk)
- object-oriented programming: 13.0.1. Under the Hood (Perl Cookbook)
- 13.0.5. Some Notes on Object Terminology (Perl Cookbook)
- 7.3. Object-Oriented Perl (Perl in a Nutshell)
- 10. Packages (Programming Perl)
- 12.1. Brief Refresher on Object-Oriented Lingo (Programming Perl)
- abstraction in: 12.3. Method Invocation (Programming Perl)
- modules for file, directory, and IPC access: 32.1.5. Filehandle, Directory Handle, and
Stream I/O Utilities (Programming Perl)
- Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)
- portable filename operations: 32.1.4. Filenames, Filesystems, and File Locking (Programming Perl)
- references in Perl, emulating: 10. Packages (Programming Perl)
- object parsing style: 3.2.2. Parsing Styles (Perl & XML)
- objects: 13.0.1. Under the Hood (Perl Cookbook)
- 7.3. Object-Oriented Perl (Perl in a Nutshell)
- 1.2.1.3. Complexities (Programming Perl)
- 12. Objects (Programming Perl)
- Glossary (Programming Perl)
- blessing: 3.2. The Arrow Operator (Programming Perl)
- 29.2.7. bless (Programming Perl)
- class data, managing: 12.8. Managing Class Data (Programming Perl)
- cloning parent objects: 13.6.1. Problem
(Perl Cookbook)
- closures as: 11.7.1. Problem (Perl Cookbook)
- connection cache object: 3.4.1. Connection Parameters (Perl & LWP)
- constructing: 13.0.2. Methods (Perl Cookbook)
- 13.1.1. Problem
(Perl Cookbook)
- constructors: 8.2.3. Object Constructors (Programming Perl)
- 12.4. Object Construction (Programming Perl)
- inheritable: 12.4.1. Inheritable Constructors (Programming Perl)
- initializers: 12.4.2. Initializers (Programming Perl)
- destroying: 13.0.2. Methods (Perl Cookbook)
- 13.2.1. Problem
(Perl Cookbook)
- destruction of (global), controlling: 19.2. Environment Variables (Programming Perl)
- determining subclass membership: 13.8.1. Problem
(Perl Cookbook)
- functions dealing with: 29.1. Perl Functions by Category (Programming Perl)
- functions for: 5.1. Perl Functions by Category (Perl in a Nutshell)
- HTTP::Response: 3.5. HTTP::Response Objects (Perl & LWP)
- indirect (see indirect objects)
- inheritance, through @ISA array: 12.5.1. Inheritance Through @ISA (Programming Perl)
- instance data, managing: 12.7. Managing Instance Data (Programming Perl)
- 12.7.1. Field Declarations with use fields (Programming Perl)
- generating accesors with closures: 12.7.4. Generating Accessors with Closures (Programming Perl)
- generating accessors with autoloading: 12.7.3. Generating Accessors with Autoloading (Programming Perl)
- generating classes with Class::Struct: 12.7.2. Generating Classes with Class::Struct (Programming Perl)
- new features, Perl 5.6: 12.7.6. New Tricks (Programming Perl)
- private objects, using closures for: 12.7.5. Using Closures for Private Objects (Programming Perl)
- instance destructors: 12.6. Instance Destructors (Programming Perl)
- garbage collection with: 12.6.1. Garbage Collection with DESTROY Methods (Programming Perl)
- instance vs. class methods: 7.4. Object Syntax (Perl in a Nutshell)
- managing instance data: 13.3.1. Problem
(Perl Cookbook)
- methods, references to: 8.3.7. Closures (Programming Perl)
- 8.3.7. Closures (Programming Perl)
- (see also closures)
- Perl object system: 12.2. Perl's Object System (Programming Perl)
- references to, in scalars: 1.2.1.1. Singularities (Programming Perl)
- storing within other objects vs. inheritance: 12.6. Instance Destructors (Programming Perl)
- stringifying: 8.3.6. Other Tricks You Can Do with Hard References (Programming Perl)
- tied objects: 13.15.1. Problem
(Perl Cookbook)
- tied variables, underlying: 14. Tied Variables (Programming Perl)
- breaking reference to: 14.5. A Subtle Untying Trap (Programming Perl)
- URI: 4.1. Parsing URLs (Perl & LWP)
- Objects style (XML::Parser): 13.4. XML::Parser Styles (Perl in a Nutshell)
- obtaining Perl modules: 2.2. How Is CPAN Organized? (Perl in a Nutshell)
- 2.4. Getting and Installing Modules (Perl in a Nutshell)
- obtaining Perl source code: 2. Installing Perl (Perl in a Nutshell)
- oct( ): 5. Function Reference (Perl in a Nutshell)
- 2.16.2. Solution (Perl Cookbook)
- 2.6.1. Numeric Literals (Programming Perl)
- 29.2.103. oct (Programming Perl)
octal characters: 2.6.1. Numeric Literals (Programming Perl)
octal literals: 2.2.4. Nondecimal Integer Literals (Learning Perl)
octal numbers: 2.16.1. Problem (Perl Cookbook)
- 29.2.103. oct (Programming Perl)
- characters, representing: 15.1. Building Character (Programming Perl)
- characters, specifying with: 5.3.2. Specific Characters (Programming Perl)
- specifying $/ as: 19.1.3. Switches (Programming Perl)
octets (see bytes)
ODBC Extension: 24. ODBC Extension for Win32 (Perl in a Nutshell)
ODBM_File module: 8.166. ODBM_File (Perl in a Nutshell)
offsets: Glossary (Programming Perl)
- for m// successes: 29.2.112. pos (Programming Perl)
- read function and: 29.2.120. read (Programming Perl)
- seek function: 29.2.138. seek (Programming Perl)
-offvalue option: 4.3. Table of Options for Button-Type Widgets (Mastering Perl/Tk)
- 4.7. On and Off Values for a Checkbutton (Mastering Perl/Tk)
- 12.2.1. Menubars the Clunky, Casual, Old-Fashioned Way (Mastering Perl/Tk)
- Checkbutton widget: 21.5. The Checkbutton Widget (Perl in a Nutshell)
- Menubutton widget: 21.14.1. Menu Item Options (Perl in a Nutshell)
$OFMT ($#) variable: 4.4.1. Global Special Variables (Perl in a Nutshell)
$OFS ($,) variable: 4.4.1. Global Special Variables (Perl in a Nutshell)
Ogg Vorbis file, spider and: 12.3.1. The Basic Spider Logic (Perl & LWP)
-ok option (perlbug): 6.6. The perlbug Program (Perl in a Nutshell)
-okay option (perlbug): 6.6. The perlbug Program (Perl in a Nutshell)
.old files, renaming to .new files: 13.2. Renaming Files (Learning Perl)
OLE automation: 23. OLE Automation (Perl in a Nutshell)
OLE, Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)
on_action( ) (SOAP::Lite): 14.2.1. SOAP::Lite Methods (Perl in a Nutshell)
on_debug( ) (SOAP::Lite): 14.2.1. SOAP::Lite Methods (Perl in a Nutshell)
OnDestroy method: 13.21. Waiting for Events to Happen (Mastering Perl/Tk)
one-liners: 1.3.1. How to Do It (Programming Perl)
- Glossary (Programming Perl)
on_fault( ) (SOAP::Lite): 14.2.1. SOAP::Lite Methods (Perl in a Nutshell)
on_nonserialized( ) (SOAP::Lite): 14.2.1. SOAP::Lite Methods (Perl in a Nutshell)
-onvalue option
- Button widgets and: 4.3. Table of Options for Button-Type Widgets (Mastering Perl/Tk)
- Checkbutton widget: 21.5. The Checkbutton Widget (Perl in a Nutshell)
- Checkbuttons and: 4.7. On and Off Values for a Checkbutton (Mastering Perl/Tk)
- 12.2.1. Menubars the Clunky, Casual, Old-Fashioned Way (Mastering Perl/Tk)
- Menubutton widget: 21.14.1. Menu Item Options (Perl in a Nutshell)
OO (object-oriented) programming: B.20.2. Object-Oriented Programming (Learning Perl)
- (see also object-oriented programming)
Opcode module: 8.167. Opcode (Perl in a Nutshell)
- 32.1.12. Authentication, Security, and Encryption (Programming Perl)
opcodes: 18.2. Compiling Your Code (Programming Perl)
- 18.3. Executing Your Code (Programming Perl)
- 21.1. How Perl Works (Programming Perl)
open( ): 5. Function Reference (Perl in a Nutshell)
- DirHandle module: 8.59. DirHandle (Perl in a Nutshell)
- Mail::Folder module: 16.2.3. Handle Folders with Mail::Folder (Perl in a Nutshell)
- Mail::Mailer module: 16.2.1. Send Email with Mail::Mailer (Perl in a Nutshell)
- Mail::Send module: 16.2.2. Better Header Control with Mail::Send (Perl in a Nutshell)
- 16.2.2. Better Header Control with Mail::Send (Perl in a Nutshell)
- PerlIO: 4.9.1. Perl 5.8 and PerlIO (Perl in a Nutshell)
- Win32::Mutex module: 22.9. Win32::Mutex (Perl in a Nutshell)
- Win32::Semaphore module: 22.16. Win32::Semaphore (Perl in a Nutshell)
- 7.0.2. Standard FileHandles (Perl Cookbook)
- 7.1.1. Problem (Perl Cookbook)
- 16.10.3. Discussion (Perl Cookbook)
- caching open filehandles: 7.17.1. Problem
(Perl Cookbook)
- filtering output: 16.5.1. Problem
(Perl Cookbook)
- reading from other programs: 16.4.2. Solution (Perl Cookbook)
- strange filenames with: 7.2.2. Solution (Perl Cookbook)
- 16.3. Fixed-length Random-access Databases (Learning Perl)
- 1.4. Filehandles (Programming Perl)
- 16.3.1. Anonymous Pipes (Programming Perl)
- 29.2.104. open (Programming Perl)
- converting file descriptor to filehandle: 16.2.2. Passing Filehandles (Programming Perl)
- $. and: 29.2.16. close (Programming Perl)
- fileno function and: 29.2.38. fileno (Programming Perl)
- fork-open: 29.2.104. open (Programming Perl)
- forking open: 16.3.2. Talking to Yourself (Programming Perl)
- modes in three-argument form: 29.2.104. open (Programming Perl)
- piped list argument form, avoiding shell with: 23.3.2. Code Masquerading as Data (Programming Perl)
- piped (two-argument form): 29.2.104. open (Programming Perl)
- for pipes, security risks posed by: 23.1.2. Cleaning Up Your Environment (Programming Perl)
- pipes, opening with: 16.3.1. Anonymous Pipes (Programming Perl)
- portability of: 25.5. Interprocess Communication (IPC) (Programming Perl)
open, magic (see magic open)
open method: 18.4.4. Tree Methods (Mastering Perl/Tk)
Open2, Open3 library modules: 16.3.3. Bidirectional Communication (Programming Perl)
open operator: 11.2. Opening a Filehandle (Learning Perl)
open source software: Glossary (Programming Perl)
Open( ) (Win32::Registry): 22.15. Win32::Registry (Perl in a Nutshell)
opendir( ): 5. Function Reference (Perl in a Nutshell)
- 9.0. Introduction (Perl Cookbook)
- 9.5.2. Solution (Perl Cookbook)
- globbing filenames: 9.6.3. Discussion (Perl Cookbook)
- 29.2.105. opendir (Programming Perl)
- 12.4. Directory Handles (Learning Perl)
openfold image: 18.5. Tix Images (Mastering Perl/Tk)
OpenGL, glpOpenWindow command: 15.9.1. Embedding OpenGL in a Perl/Tk Window (Mastering Perl/Tk)
opening
- files via low-level system call: 29.2.171. sysopen (Programming Perl)
- sockets: 29.2.157. socket (Programming Perl)
- file descriptors: 7.19.1. Problem
(Perl Cookbook)
- files: 7.1.1. Problem (Perl Cookbook)
OpenLDAP: 19. Lightweight Directory Access with Net::LDAP (Perl in a Nutshell)
openLine method: 8.16.1. Setting and Getting the Gravity (Mastering Perl/Tk)
OpenRequest( ) (Win32::Internet): 22.7.3. HTTP Functions (Perl in a Nutshell)
OpenURL( ) (Win32::Internet): 22.7.1. General Internet Methods (Perl in a Nutshell)
operand stack: 18.3. Executing Your Code (Programming Perl)
operating system: 0.1. The Pursuit of Happiness (Programming Perl)
operating system name: 28.2. Special Variables in Alphabetical Order (Programming Perl)
operating systems: Glossary (Programming Perl)
- #! technique, simulating on non-Unix systems: 19.1.1. #! and Quoting on Non-Unix Systems (Programming Perl)
- colormap complications and: 11.3.6. Colormap Complications (Mastering Perl/Tk)
- command interpreters for: 19.1. Command Processing (Programming Perl)
- differences for Listbox modes: 7.3.1. Operating System Differences (Mastering Perl/Tk)
- flock support on: 16.2.1. File Locking (Programming Perl)
- fork operator, support for: 16.2.2. Passing Filehandles (Programming Perl)
- GUIs, relying on: 25.4. System Interaction (Programming Perl)
- identifer: 12.3. The Win32 System Menu Item (Mastering Perl/Tk)
- interfaces to, manipulating: 32.1.7. Operating System Interfaces (Programming Perl)
- invoking interpreters with #! line: 19.1. Command Processing (Programming Perl)
- module names, translating to directory names: 11.1. Using Modules (Programming Perl)
- newlines, variations in: 25.1. Newlines (Programming Perl)
- perl interpreter, starting on: 1.3.1. How to Do It (Programming Perl)
- Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)
- Perl ports to: 22. CPAN (Programming Perl)
- Perl program portability: 25. Portable Perl (Programming Perl)
- signal reliability on: 16.1.2. Reaping Zombies (Programming Perl)
- signals and default behaviors of: 16.1. Signals (Programming Perl)
- sockets, support for: 16.5. Sockets (Programming Perl)
- threading libraries: 17.2. The Thread Model (Programming Perl)
operations
- contexts, evaluation in: 2.7.1. Scalar and List Context (Programming Perl)
operator: 2.8. Getting User Input (Learning Perl)
- context and: 3.9. <STDIN> in List Context (Learning Perl)
- defined function and: 2.12. The defined Function (Learning Perl)
- while loop shortcut and: 6.1. Input from Standard Input (Learning Perl)
operator precedence (see precedence)
operators: 4.5. Operators (Perl in a Nutshell)
- 1.5. Operators (Programming Perl)
- 3. Unary and Binary Operators (Programming Perl)
- Glossary (Programming Perl)
- access, restricting with Safe module: 23.3.1.2. Restricting operator access (Programming Perl)
- assignment operators: 1.5.3. Assignment Operators (Programming Perl)
- associativity and: 2.6.2. Operator Precedence and Associativity (Learning Perl)
- associativity of: 3. Unary and Binary Operators (Programming Perl)
- C language, missing in Perl: 3.21. C Operators Missing from Perl (Programming Perl)
- comparison: 2.6.3. Comparison Operators (Learning Perl)
- 15.4. Advanced Sorting (Learning Perl)
- logical operators: 1.5.5. Logical Operators (Programming Perl)
- matching and substitution: 5. Pattern Matching (Programming Perl)
- numeric: 2.2.5. Numeric Operators (Learning Perl)
- overload module for: B.22. Operator Overloading (Learning Perl)
- overloadable: 13.3. Overloadable Operators (Programming Perl)
- Glossary (Programming Perl)
- arithmetic operators: 13.3. Overloadable Operators (Programming Perl)
- assignment operators: 13.3. Overloadable Operators (Programming Perl)
- bitwise operators: 13.3. Overloadable Operators (Programming Perl)
- circular references, problems with: 13.3. Overloadable Operators (Programming Perl)
- comparison operators: 13.3. Overloadable Operators (Programming Perl)
- conversion operators: 13.3. Overloadable Operators (Programming Perl)
- dereference operators: 13.3. Overloadable Operators (Programming Perl)
- iterative operator: 13.3. Overloadable Operators (Programming Perl)
- logical negation operator: 13.3. Overloadable Operators (Programming Perl)
- overloading: 3. Unary and Binary Operators (Programming Perl)
- 13. Overloading (Programming Perl)
- 32.1.1. Data Types (Programming Perl)
- pattern-matching: 5.2. Pattern-Matching Operators (Programming Perl)
- modifiers for: 5.2.1. Pattern Modifiers (Programming Perl)
- perlfunc manpage and: B.8. Other Operators and Functions (Learning Perl)
- perlop manpage and: B.8. Other Operators and Functions (Learning Perl)
- positions or lengths, switching to character positions: 15.2. Effects of Character Semantics (Programming Perl)
- precedence and: 2.6.2. Operator Precedence and Associativity (Learning Perl)
- precedence of: 1.5.1. Some Binary Arithmetic Operators (Programming Perl)
- 3. Unary and Binary Operators (Programming Perl)
- C precedence, retaining in Perl: 3. Unary and Binary Operators (Programming Perl)
- quotes, syntactical similarity to: 1.2.1.1. Singularities (Programming Perl)
- quoting operators: 2.6.3. Pick Your Own Quotes (Programming Perl)
- scalar context, supplying to parameters: 1.2.1.1. Singularities (Programming Perl)
- string operators: 1.5.2. String Operators (Programming Perl)
- verbs as: 1.2.2. Verbs (Programming Perl)
operators, for loop control: 4.4.4. Loop Control (Programming Perl)
operators, overloading: 13.14.1. Problem
(Perl Cookbook)
operators used with tags: 9.9. Tags (Mastering Perl/Tk)
ops module: 8.168. ops (Perl in a Nutshell)
- 32.1.12. Authentication, Security, and Encryption (Programming Perl)
optimizing
- in the Perl compiler: 18.2. Compiling Your Code (Programming Perl)
- performance and: 24.2. Efficiency (Programming Perl)
</option\\> HTML tag: 5.4.11. Select Elements and Option Elements (Perl & LWP)
option database: 16.1.4. Option Database Lookups (Mastering Perl/Tk)
option element, HTML forms: 5.4.11. Select Elements and Option Elements (Perl & LWP)
option menus: 12.6. Option Menus (Mastering Perl/Tk)
option modifiers: 9.2. Option Modifiers (Learning Perl)
option processing
- Perl modules for: 32.1.3. Option, Argument, Parameter, and Configuration
File Processing (Programming Perl)
option processing, Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)
optionAdd method: 16.2. Using the Option Database (Mastering Perl/Tk)
- 16.2.1. Manipulating Resources with option* Methods (Mastering Perl/Tk)
optionClear method: 16.2.1. Manipulating Resources with option* Methods (Mastering Perl/Tk)
optionGet method: 16.2.1. Manipulating Resources with option* Methods (Mastering Perl/Tk)
Optionmenu widget: 12.6.1. Tk::Optionmenu (Mastering Perl/Tk)
Optionmenu widget (Perl/Tk): 21.16. The Optionmenu Widget (Perl in a Nutshell)
optionReadfile method: 16.2. Using the Option Database (Mastering Perl/Tk)
- 16.2.1. Manipulating Resources with option* Methods (Mastering Perl/Tk)
options (see switches, command-line)
- 19.1.3. Switches (Programming Perl)
- order of precedence: 16. User Customization (Mastering Perl/Tk)
-options option (Optionmenu): 21.16. The Optionmenu Widget (Perl in a Nutshell)
option/value pairs
- alignment suggestions: 1.5.1. Programming Style (Mastering Perl/Tk)
- as resource: 16. User Customization (Mastering Perl/Tk)
- packInfo method and: 2.1.10.2. Retrieving pack information (Mastering Perl/Tk)
- qw operator and: 1.3.3. Specifying Options (Mastering Perl/Tk)
- syntax for: 1.3.3. Specifying Options (Mastering Perl/Tk)
OR (||) operator: 3.14. C-Style Logical (Short-Circuit) Operators (Programming Perl)
- 10.9. Logical Operators (Learning Perl)
- 10.9.3. Control Structures Using Partial-Evaluation Operators (Learning Perl)
- die function and: 11.3. Fatal Errors with die (Learning Perl)
- list operators and: 4.7. Global Declarations (Programming Perl)
- logical: 4.5.9. Logical Operators (Perl in a Nutshell)
OR (|) operator, bitwise: 4.5.10. Bitwise Operators (Perl in a Nutshell)
OR functionality in regular expressions: 6.17.1. Problem (Perl Cookbook)
OR logical operator: 1.5.5. Logical Operators (Programming Perl)
or operator: 3.14. C-Style Logical (Short-Circuit) Operators (Programming Perl)
- 3.20. Logical and, or, not, and xor (Programming Perl)
- 5.9.1. Letting Perl Do the Work (Programming Perl)
- 24.3. Programming with Style (Programming Perl)
- 4.5.9. Logical Operators (Perl in a Nutshell)
- | (bitwise): 3.13. Bitwise Operators (Programming Perl)
- list operators, use with: 4.7. Global Declarations (Programming Perl)
- precedence, or vs. ||: 12.3.3. Syntactic Snafus with Indirect Objects (Programming Perl)
or operator vs. || operator: 1.2.3. Discussion (Perl Cookbook)
ora-temps code, web site link extraction: 6.7. Example: Extracting Temperatures from Weather Underground (Perl & LWP)
oraperl package: 12.2. Design of DBI (Perl in a Nutshell)
ord( ): 5. Function Reference (Perl in a Nutshell)
- 1.4.3. Discussion (Perl Cookbook)
- 15.2. Effects of Character Semantics (Programming Perl)
- 29.2.106. ord (Programming Perl)
order (see precedence)
- of function precedence: 29. Functions (Programming Perl)
oreobounce program (example): 19.8.3. Discussion (Perl Cookbook)
-orient option
- Scale widget: 21.13. The Scale Widget (Perl in a Nutshell)
- Scale widgets and: 10.1. Creating a Scale (Mastering Perl/Tk)
- 10.3. Orientation (Mastering Perl/Tk)
- Scrollbar widget: 21.9. The Scrollbar Widget (Perl in a Nutshell)
- Scrollbars and: 6.3.2. Scrollbar Options (Mastering Perl/Tk)
- 6.3.5. Scrollbar Orientation (Mastering Perl/Tk)
- TList widgets and: 18.3. The TList Widget (Mastering Perl/Tk)
ornaments option (debugger): 20.3.3. Debugger Options (Programming Perl)
$ORS ($\) variable: 4.4.1. Global Special Variables (Perl in a Nutshell)
OS/2 operating system
- invoking Perl applications on: 19.1.1. #! and Quoting on Non-Unix Systems (Programming Perl)
OSBC,
Perl modules for: 22.1. The CPAN modules Directory (Programming Perl)
$OS_ERROR: 28.2. Special Variables in Alphabetical Order (Programming Perl)
$OS_ERROR ($!) variable: 4.4.1. Global Special Variables (Perl in a Nutshell)
$OSNAME (see $^O variable)
- 28.2. Special Variables in Alphabetical Order (Programming Perl)
$OSNAME ($^O) variable: 4.4.1. Global Special Variables (Perl in a Nutshell)
os_snipe program (example): 19.8.3. Discussion (Perl Cookbook)
our( ): 5. Function Reference (Perl in a Nutshell)
- 4.8.1. Scoped Variable Declarations (Programming Perl)
- 4.8.2. Lexically Scoped Variables: my (Programming Perl)
- 29.2.107. our (Programming Perl)
our declarations: 2.5.1. Name Lookups (Programming Perl)
- 4. Statements and Declarations (Programming Perl)
- 29.2.107. our (Programming Perl)
- context rules and: 2.7.1. Scalar and List Context (Programming Perl)
- global variables, lexically scoped: 4.8.3. Lexically Scoped Global Declarations: our (Programming Perl)
Ousterhout, John K.: 1.2.2. The Coming of Tcl/Tk (Mastering Perl/Tk)
out of memory errors: 28.2. Special Variables in Alphabetical Order (Programming Perl)
output: 6.4. Output to Standard Output (Learning Perl)
- 5.16. Program: dutree (Perl Cookbook)
- 5.1. Perl Functions by Category (Perl in a Nutshell)
- 29.2.38. fileno (Programming Perl)
- array and hash, changing style (debugger): 20.3.3. Debugger Options (Programming Perl)
- buffered: 6.4. Output to Standard Output (Learning Perl)
- capturing using backquotes: 14.4. Using Backquotes to Capture Output (Learning Perl)
- checking file descriptors for: 29.2.141. select (ready file descriptors) (Programming Perl)
- controlling decimal places: 13.14.5. Example: Overloaded FixNum Class (Perl Cookbook)
- controlling for other programs: 16.8.1. Problem
(Perl Cookbook)
- currently selected channel: Glossary (Programming Perl)
- declaring: 7. Formats (Programming Perl)
- debugger, setting: 20.4. Unattended Execution (Programming Perl)
- field separator (see $, variable)
- files, open mode for: 29.2.104. open (Programming Perl)
- filtering: 16.5.1. Problem
(Perl Cookbook)
- flushing: 7.12.1. Problem
(Perl Cookbook)
- format output accumulator: 29.2.42. formline (Programming Perl)
- formats for: 4.12. Formats (Perl in a Nutshell)
- formatted with printf function: 6.5. Formatted Output with printf (Learning Perl)
- functions dealing with: 29.1. Perl Functions by Category (Programming Perl)
- gathering from programs: 16.1.1. Problem
(Perl Cookbook)
- ioctl function: 29.2.77. ioctl (Programming Perl)
- pipes: 16.3. Pipes (Programming Perl)
- 16.3. Pipes (Programming Perl)
- bidirectional: 16.3.3. Bidirectional Communication (Programming Perl)
- filtering: 16.3.2. Talking to Yourself (Programming Perl)
- STDOUT as pipe to another program: 16.3.1. Anonymous Pipes (Programming Perl)
- tridirectional: 16.3.3. Bidirectional Communication (Programming Perl)
- random access I/O: 8.12.1. Problem
(Perl Cookbook)
- record separator (see $\ variable)
- selecting filehandles for: 29.2.140. select (output filehandle) (Programming Perl)
- URI objects as strings: 4.1.2. Output (Perl & LWP)
- when using XML::RSS module: 9.2.5. Off-the-Cuff Output (Perl & XML)
- writing to other programs: 16.4.1. Problem
(Perl Cookbook)
- XSUBs: 21.3.3. XSUB Input and Output (Programming Perl)
output filehandles: 1.4. Filehandles (Programming Perl)
- STDOUT: 1.4. Filehandles (Programming Perl)
$OUTPUT_AUTOFLUSH: 28.2. Special Variables in Alphabetical Order (Programming Perl)
$OUTPUT_AUTOFLUSH ($|) variable: 4.4.6. Filehandle Special Variables (Perl in a Nutshell)
OutputCP( ) (Win32::Console): 22.2. Win32::Console (Perl in a Nutshell)
$OUTPUT_FIELD_SEPARATOR: 28.2. Special Variables in Alphabetical Order (Programming Perl)
$OUTPUT_FIELD_SEPARATOR ($,) variable: 4.4.1. Global Special Variables (Perl in a Nutshell)
$OUTPUT_RECORD_SEPARATOR: 28.2. Special Variables in Alphabetical Order (Programming Perl)
$OUTPUT_RECORD_SEPARATOR ($\) variable: 4.4.1. Global Special Variables (Perl in a Nutshell)
outputxml( ) (SOAP::Lite): 14.2.1. SOAP::Lite Methods (Perl in a Nutshell)
ovals: 9.6.5. The Oval Item (Mastering Perl/Tk)
- 9.6.5. The Oval Item (Mastering Perl/Tk)
=over command (pod): 4.13.1. Paragraph Tags (Perl in a Nutshell)
overanchor point: 12.5.2. The Popup Method (Mastering Perl/Tk)
overload handlers: 13.2. Overload Handlers (Programming Perl)
overload module: B.22. Operator Overloading (Learning Perl)
- 8.169. overload (Perl in a Nutshell)
overloaded,
functions: 2.7.1. Scalar and List Context (Programming Perl)
Overloaded (overload::Overloaded): 13.7. Public Overload Functions (Programming Perl)
overloaded string constants, translating text with: 5.10.4. Defining Your Own Assertions (Programming Perl)
overloading: 3. Unary and Binary Operators (Programming Perl)
- 13. Overloading (Programming Perl)
- Glossary (Programming Perl)
- autogeneration of: 13.3. Overloadable Operators (Programming Perl)
- 13.3. Overloadable Operators (Programming Perl)
- circular references, avoiding: 13.3. Overloadable Operators (Programming Perl)
- constants: 13.6. Overloading Constants (Programming Perl)
- copy constructor (=): 13.4. The Copy Constructor (=) (Programming Perl)
- diagnostics: 13.10. Overloading Diagnostics (Programming Perl)
- functions for: 13.7. Public Overload Functions (Programming Perl)
- inheritance and: 13.8. Inheritance and Overloading (Programming Perl)
- mathematical functions: 13.3. Overloadable Operators (Programming Perl)
- nonmethod and fallback: 13.5. When an Overload Handler Is Missing (nomethod and fallback) (Programming Perl)
- operators: 13.14.1. Problem
(Perl Cookbook)
- overload module: 32.1.1. Data Types (Programming Perl)
- overload pragma: 13.1. The overload Pragma (Programming Perl)
- overloadable operators: 13.3. Overloadable Operators (Programming Perl)
- at run time: 13.9. Run-Time Overloading (Programming Perl)
- sorting and: 13.3. Overloadable Operators (Programming Perl)
- stringifying: 14.4.1. Filehandle-Tying Methods (Programming Perl)
overridden methods: 13.10.1. Problem
(Perl Cookbook)
- base class, invoking all: 12.5.3. UNIVERSAL: The Ultimate Ancestor Class (Programming Perl)
overridedirect( ) (Frame widget): 21.18.1. Toplevel Methods (Perl in a Nutshell)
overridedirect method: 11.3. Options (Mastering Perl/Tk)
- 12.5.2. The Popup Method (Mastering Perl/Tk)
overriding
11.3. Overriding Built-in Functions (Programming Perl)
- base class methods: 12.5.2. Accessing Overridden Methods (Programming Perl)
- built-in functions: 12.11.1. Problem
(Perl Cookbook)
- signal handlers: 16.16.1. Problem
(Perl Cookbook)
OverstrikeMode method: 8.16.1. Setting and Getting the Gravity (Mastering Perl/Tk)
overview_fmt( ) (Net::NNTP): 17.2.2. Net::NNTP Reference (Perl in a Nutshell)
overwriting existing files, race conditions and: 23.2.2. Handling Race Conditions (Programming Perl)
owner method: 19.5.3. Locking an SDB File (Mastering Perl/Tk)
ownerDocument property for Node class (DOM): 7.2.4.1. Properties (Perl & XML)
ownerElement property of Attr class (DOM): 7.2.9.1. Properties (Perl & XML)
ownership, file: 29.2.13. chown (Programming Perl)
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