Index: P

Symbols & Numbers
| 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: P
- -P (C preprocessor) command-line switch:  19.1.3. Switches (Programming Perl)
- -p command-line option:  16.4.1. In-place Editing from the Command Line (Learning Perl)
- 
  
  - modifying files with:  7.16.2. Solution (Perl Cookbook)
- writing filters:  7.14.3.2. Command-line options (Perl Cookbook)
 
- p command (Perl debugger):  6.2. Debugger Commands (Perl in a Nutshell)
- \P (doesn't match property):  15.2. Effects of Character Semantics (Programming Perl)
- -p file test operator:  4.5.8. File Test Operators (Perl in a Nutshell)
- 
  -  16.3.4. Named Pipes (Programming Perl)
 
- \p (matches property):  15.2. Effects of Character Semantics (Programming Perl)
- -p (named pipe) file test:  3.10. Named Unary and File Test Operators (Programming Perl)
- -p option (dprofpp):  6.5. The Perl Profiler (Perl in a Nutshell)
- -p (print while looping) command-line switch:  19.1.3. Switches (Programming Perl)
- pack ( ):  25.2. Endianness and Number Width (Programming Perl)
-  1.4.3. Discussion (Perl Cookbook)
-  8.13.2. Solution (Perl Cookbook)
- with Tk resize events:  15.16.2. Solution (Perl Cookbook)
-  16.2. Manipulating Data with pack and unpack (Learning Perl)
-  29.2.108. pack (Programming Perl)
- template characters for:  29.2.108. pack (Programming Perl)
- unpack function, Unicode characters and:  15.2. Effects of Character Semantics (Programming Perl)
 
- pack geometry manager (Perl/Tk):  21.2.1. The pack Geometry Manager (Perl in a Nutshell)
- package( ):  5. Function Reference (Perl in a Nutshell)
- _ _PACKAGE_ _ constant:  4.4.4. Global Special Constants (Perl in a Nutshell)
- package declaration:  4.8. Scoped Declarations (Programming Perl)
- 
  -  10. Packages (Programming Perl)
-  29.2.109. package (Programming Perl)
 
- package statement:  12.. Introduction (Perl Cookbook)
- 
  -  7.1. Namespaces and Packages (Perl in a Nutshell)
 
- __PACKAGE__ symbol:  10.4.3. Discussion (Perl Cookbook)
- 
  -  12.6.3. Discussion (Perl Cookbook)
 
- package variables
- 
  
  - wrapping declaration in block scope:  12.8. Managing Class Data (Programming Perl)
- storing class data in:  12.8. Managing Class Data (Programming Perl)
- package variables (see also global variables)
-  2.5.1. Name Lookups (Programming Perl)
-  4.8.1. Scoped Variable Declarations (Programming Perl)
- declaring:  29.2.107. our (Programming Perl)
- threads, no protection in:  17.2.2. Data Access (Programming Perl)
 
- packages:  12.. Introduction (Perl Cookbook)
- 
  -  B.3. Packages (Learning Perl)
-  7.1. Namespaces and Packages (Perl in a Nutshell)
-  12. Using Modules (Learning Perl Objects, References and Modules)
-  1.2.1.4. Simplicities (Programming Perl)
-  2.5. Names (Programming Perl)
-  2.5. Names (Programming Perl)
-  10. Packages (Programming Perl)
-  10.2. Autoloading (Programming Perl)
- Glossary (Programming Perl)
- adding methods to existing:  12.5.2. Accessing Overridden Methods (Programming Perl)
- binding variables to:  29.2.191. untie (Programming Perl)
- bless function arguments:  12.4. Object Construction (Programming Perl)
- blessing objects into:  29.2.7. bless (Programming Perl)
- current package: Glossary (Programming Perl)
- delimiters for:  10. Packages (Programming Perl)
- determining current calling:  12.6.1. Problem (Perl Cookbook)
- global variables:  2.9. Packages and Lexicals (Learning Perl Objects, References and Modules)
- 
    -  6.6. Closure Variables as Inputs (Learning Perl Objects, References and Modules)
 
- identifiers:  10. Packages (Programming Perl)
- importing semantics to:  29.2.192. use (Programming Perl)
- in @ISA array, inheritance through:  12.5.1. Inheritance Through @ISA (Programming Perl)
- @ISA variable and:  8.5. A Few Notes About @ISA (Learning Perl Objects, References and Modules)
- 
    -  8.5. A Few Notes About @ISA (Learning Perl Objects, References and Modules)
 
- lexicals and:  2.9. Packages and Lexicals (Learning Perl Objects, References and Modules)
- 
    -  2.9. Packages and Lexicals (Learning Perl Objects, References and Modules)
 
- main program in:  2.7. Packages as Namespace Separators (Learning Perl Objects, References and Modules)
- methods and subroutines, resolving for:  12.3. Method Invocation (Programming Perl)
- names for:  2.6.4. Or Leave the Quotes Out Entirely (Programming Perl)
- 
    -  24.3. Programming with Style (Programming Perl)
 
- as namespace separators:  2.7. Packages as Namespace Separators (Learning Perl Objects, References and Modules)
- naming considerations:  2.7. Packages as Namespace Separators (Learning Perl Objects, References and Modules)
- 
    -  8.2. Introducing the Method Invocation Arrow (Learning Perl Objects, References and Modules)
 
- overriding built-in functions:  12.12.1. Problem (Perl Cookbook)
- private variables:  12.4.1. Problem (Perl Cookbook)
- quoting:  12.3.4. Package-Quoted Classes (Programming Perl)
- referring to indirectly:  12.16.1. Problem (Perl Cookbook)
- scope of directives:  2.8. Scope of a Package Directive (Learning Perl Objects, References and Modules)
- 
    -  2.8. Scope of a Package Directive (Learning Perl Objects, References and Modules)
 
- splitting for autoloading:  32.1.17. Module Installation Support (Programming Perl)
- symbol tables
- 
    
    - displaying:  20.3.3. Debugger Options (Programming Perl)
 
- symbol tables for:  10.1. Symbol Tables (Programming Perl)
- tying variables to:  29.2.178. tie (Programming Perl)
 
- packed sockaddr:  29.2.54. getpeername (Programming Perl)
- packet-oriented communication:  15. Sockets (Perl in a Nutshell)
- packForget( ) (pack geometry manager):  21.2.1.1. pack methods (Perl in a Nutshell)
- packInfo( ) (pack geometry manager):  21.2.1.1. pack methods (Perl in a Nutshell)
- packPropogate( ) (pack geometry manager):  21.2.1.1. pack methods (Perl in a Nutshell)
- packSlaves( ) (pack geometry manager):  21.2.1.1. pack methods (Perl in a Nutshell)
- -padbottom option,
  
 form geometry manager:  21.2.4. The form Geometry Manager (Perl in a Nutshell)
- -padleft option,
  form geometry manager:  21.2.4. The form Geometry Manager (Perl in a Nutshell)
- -padright option
  form geometry manager:  21.2.4. The form Geometry Manager (Perl in a Nutshell)
- pads:  2.5. Names (Programming Perl)
- -padtop option
  
form geometry manager:  21.2.4. The form Geometry Manager (Perl in a Nutshell)
- -padx option
  
form geometry manager:  21.2.4. The form Geometry Manager (Perl in a Nutshell)
- -padx, -pady options:  21.3. Common Widget Configuration Options (Perl in a Nutshell)
- 
  
  - grid geometry manager:  21.2.2. The grid Geometry Manager (Perl in a Nutshell)
- pack geometry manager:  21.2.1. The pack Geometry Manager (Perl in a Nutshell)
 
- -pady option
  
form geometry manager:  21.2.4. The form Geometry Manager (Perl in a Nutshell)
- page numbers:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- pager option (debugger):  20.3.3. Debugger Options (Programming Perl)
- pages:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- PalmPilot, Perl modules for:  22.1. The CPAN modules Directory (Programming Perl)
- paragraph mode:  19.1.3. Switches (Programming Perl)
- 
  -  28.2. Special Variables in Alphabetical Order (Programming Perl)
 
- paragraph separator character:  2.2. Molecules (Programming Perl)
- paragraph tags (pod):  4.13.1. Paragraph Tags (Perl in a Nutshell)
- paragraphs
- 
  
  - counting in files:  8.2.1. Problem (Perl Cookbook)
- in pod documentation:  12.20.3. Discussion (Perl Cookbook)
- reading files backwards by:  8.4.1. Problem (Perl Cookbook)
- reformatting:  1.17.1. Problem (Perl Cookbook)
 
- param( ):  19.1.3. Discussion (Perl Cookbook)
- param( ) (CGI.pm):  10. The CGI.pm Module (Perl in a Nutshell)
- 
  -  10.7. CGI.pm Reference (Perl in a Nutshell)
 
- parameter lists:  4.5. Arguments (Learning Perl)
- 
  
  - empty:  4.8.2. Empty Parameter Lists (Learning Perl)
- variable-length:  4.8. Variable-length Parameter Lists (Learning Perl)
 
- parameters (see also arguments)
- 
  -  28.2. Special Variables in Alphabetical Order (Programming Perl)
- @_:  8.9. What to Do with @_ (Learning Perl Objects, References and Modules)
- adding to methods:  9.7. Adding Parameters to a Method (Learning Perl Objects, References and Modules)
- 
    -  9.7. Adding Parameters to a Method (Learning Perl Objects, References and Modules)
 
- callbacks and:  6.5. Returning a Subroutine from a Subroutine (Learning Perl Objects, References and Modules)
- 
    -  6.5. Returning a Subroutine from a Subroutine (Learning Perl Objects, References and Modules)
 
- hash references as:  3.9.2. Exercise 2 [30 min] (Learning Perl Objects, References and Modules)
- instance methods and:  9.2. Invoking an Instance Method (Learning Perl Objects, References and Modules)
- instances as:  9.2. Invoking an Instance Method (Learning Perl Objects, References and Modules)
- method invocation and:  8.3. The Extra Parameter of Method Invocation (Learning Perl Objects, References and Modules)
- 
    -  8.3. The Extra Parameter of Method Invocation (Learning Perl Objects, References and Modules)
 
- passing to superclasses:  10.4. Additional Instance Variables in Subclasses (Learning Perl Objects, References and Modules)
- returning updated values:  9.10. Getting Your Deposit Back (Learning Perl Objects, References and Modules)
- scalar context, providing for:  1.2.1.1. Singularities (Programming Perl)
- shifting:  8.4. Calling a Second Method to Simplify Things (Learning Perl Objects, References and Modules)
- 
    -  8.9. What to Do with @_ (Learning Perl Objects, References and Modules)
 
- subroutines
- 
    
    - changing in place:  6.2.1. Tricks with Parameter Lists (Programming Perl)
- working with:  6.2.1. Tricks with Parameter Lists (Programming Perl)
 
 
- params function (ExtUtils::Constant module):  8.69. ExtUtils::Constant (Perl in a Nutshell)
- params( ) (URI::URL):  20.5.3. URI::URL (Perl in a Nutshell)
- ( ) (parentheses);grouping operator:  5.9.4. The Little Engine That /Could(n't)?/ (Programming Perl)
- parent-child relationships:  10.6. Weakening the Argument (Learning Perl Objects, References and Modules)
- parent classes:  12.1. Brief Refresher on Object-Oriented Lingo (Programming Perl)
- 
  
  - accessing overridden methods:  13.11.1. Problem (Perl Cookbook)
- cloning objects:  13.6.1. Problem (Perl Cookbook)
 
- parent( ) (HTML::Parser):  20.4.3. HTML::Element (Perl in a Nutshell)
- parent processes (see processes)
- parent processes, managing:  14. Process Management (Learning Perl)
- parentheses
- 
  
  - file tests and:  11.6. File Tests (Learning Perl)
- grouping patterns with:  7.2.3. Grouping in Patterns (Learning Perl)
- indicating precedence:  2.6.2. Operator Precedence and Associativity (Learning Perl)
- optional use of:  3.4.1. The pop and push Operators (Learning Perl)
- 
    
    - with print function:  6.4. Output to Standard Output (Learning Perl)
 
- with memory function:  8.4. Memory Parentheses (Learning Perl)
- around function arguments:  5. Function Reference (Perl in a Nutshell)
- operator precedence and:  4.5. Operators (Perl in a Nutshell)
- regular expression metacharacter:  4.6.2. Regular Expression Syntax (Perl in a Nutshell)
- (?...) extended regular expression syntax:  4.6.8. Extended Regular Expressions (Perl in a Nutshell)
-  1.. Introduction (Perl Cookbook)
- autouse pragma:  12.3.3. Discussion (Perl Cookbook)
- prototyping functions:  10.11.3.1. Omitting parentheses (Perl Cookbook)
- substitution:  6.1.3. Discussion (Perl Cookbook)
 
- parse( )
- 
  
  - HTML::Parser module:  20.4.1. HTML::Parser (Perl in a Nutshell)
- Mail::Address module:  16.2.7. Mail::Address Reference (Perl in a Nutshell)
- XML::Parser module:  13.2. XML::Parser Methods (Perl in a Nutshell)
- HTML tables, extracting data:  20.19.3. Discussion (Perl Cookbook)
 
- parse trees:  18.1. The Life Cycle of a Perl Program (Programming Perl)
- 
  -  18.2. Compiling Your Code (Programming Perl)
- internal, keeping:  18.4. Compiler Backends (Programming Perl)
- original, reconstituting and splicing into current parse tree:  18.5.1. The Bytecode Generator (Programming Perl)
- reconstruction of:  18.1. The Life Cycle of a Perl Program (Programming Perl)
 
- parse_csv subroutines:  1.20.3. Discussion (Perl Cookbook)
- ParseDate( ):  3.7.2. Solution (Perl Cookbook)
- 
  -  3.11. Program: hopdelta (Perl Cookbook)
 
- parse_date( ) (HTTP::Date):  20.3.5. HTTP::Date (Perl in a Nutshell)
- parse_file( ) (HTML::Parser):  20.4.1. HTML::Parser (Perl in a Nutshell)
- parsefile( ) (XML::Parser module):  13.2. XML::Parser Methods (Perl in a Nutshell)
- parse_head( ) (LWP::UserAgent):  20.2.3. LWP::UserAgent (Perl in a Nutshell)
- parse_start( ) (XML::Parser module):  13.2. XML::Parser Methods (Perl in a Nutshell)
- parsestring( ) (XML::Parser module):  13.2. XML::Parser Methods (Perl in a Nutshell)
- parsing:  21.1. How Perl Works (Programming Perl)
- 
  
  - comma-separated data:  1.20.1. Problem (Perl Cookbook)
- command-line arguments:  15.1.1. Problem (Perl Cookbook)
- commas into numbers:  2.16.1. Problem (Perl Cookbook)
- date and time from strings:  3.7.1. Problem (Perl Cookbook)
- double-quote interpolation and regular expressions:  5.2. Pattern-Matching Operators (Programming Perl)
- email addresses:  16.2.6. Parse Email Addresses with Mail::Address (Perl in a Nutshell)
- event-based:  13.3. Expat Handlers (Perl in a Nutshell)
- file specifications:  12.1. Sample Function-Oriented Interface: File::Basename (Learning Perl Objects, References and Modules)
- filenames:  9.10.1. Problem (Perl Cookbook)
- HTML:  20.18.1. Problem (Perl Cookbook)
- HTML tags:  20.6.1. Problem (Perl Cookbook)
- in the Perl compiler:  18.2. Compiling Your Code (Programming Perl)
- shifting style:  2.1. The Cure for the Common Code (Learning Perl Objects, References and Modules)
- 
    -  3.1. Performing the Same Task on Many Arrays (Learning Perl Objects, References and Modules)
 
- text, Perl modules for:  22.1. The CPAN modules Directory (Programming Perl)
- web server log file:  20.12.1. Problem (Perl Cookbook)
- XML
- 
    
    - into data structures:  22.1.1. Problem (Perl Cookbook)
- into DOM tree:  22.2.1. Problem (Perl Cookbook)
- into SAX events:  22.3.1. Problem (Perl Cookbook)
 
 
- partial-evaluation operators:  10.9.3. Control Structures Using Partial-Evaluation Operators (Learning Perl)
- pass( ) (Net::POP3):  16.1.3. Retrieving Email with Net::POP3 (Perl in a Nutshell)
- 
  -  16.1.3. Retrieving Email with Net::POP3 (Perl in a Nutshell)
 
- PASS command (POP3):  16.1.3. Retrieving Email with Net::POP3 (Perl in a Nutshell)
- passing
- 
  
  - arrays and hashes by reference:  10.5.1. Problem (Perl Cookbook)
- by named parameter:  10.7.1. Problem (Perl Cookbook)
 
- passing arguments to subroutines:  4.7.2. Passing Arguments (Perl in a Nutshell)
- passing by reference:  3.2. Taking a Reference to an Array (Learning Perl Objects, References and Modules)
- 
  -  6.2. Semantics (Programming Perl)
- Glossary (Programming Perl)
- prototypes declaring function calls as:  8.1. What Is a Reference? (Programming Perl)
 
- passing by value: Glossary (Programming Perl)
- passing by value, copying @_ values to my list:  6.2.1. Tricks with Parameter Lists (Programming Perl)
- passing references:  6.3. Passing References (Programming Perl)
- passing references to subroutines:  4.7.3. Passing References (Perl in a Nutshell)
- password( )
- 
  
  - Net::Netrc module:  18.3. FTP Configuration with Net::Netrc (Perl in a Nutshell)
- URI::URL module:  20.5.3. URI::URL (Perl in a Nutshell)
 
- password databases (Unix):  B.7.1. Direct System Database Access (Learning Perl)
- password entries (.netrc):  18.3. FTP Configuration with Net::Netrc (Perl in a Nutshell)
- Password( ) (Win32::Internet):  22.7.1. General Internet Methods (Perl in a Nutshell)
- password_field( ) (CGI.pm):  10.7. CGI.pm Reference (Perl in a Nutshell)
- passwords:  29.2.164. srand (Programming Perl)
- 
  
  - crypt function and:  29.2.20. crypt (Programming Perl)
- passwd file:  29.2.61. getpwent (Programming Perl)
- Perl modules for:  22.1. The CPAN modules Directory (Programming Perl)
- randomly generating:  2.6.3. Discussion (Perl Cookbook)
- reading without echo:  15.10.1. Problem (Perl Cookbook)
- 
    -  15.10.1. Problem (Perl Cookbook)
 
 
- pasv( ) (Net::FTP):  18.2. Net::FTP (Perl in a Nutshell)
- pasv_wait( ) (Net::FTP):  18.2. Net::FTP (Perl in a Nutshell)
- pasv_xfer( ) (Net::FTP):  18.2. Net::FTP (Perl in a Nutshell)
- pasv_xfer_unique( ) (Net::FTP):  18.2. Net::FTP (Perl in a Nutshell)
- patches for Perl source code:  2.3.1.2. Patches (Perl in a Nutshell)
- path( )
- 
  
  - Mail::Address module:  16.2.7. Mail::Address Reference (Perl in a Nutshell)
- URI::URL module:  20.5.3. URI::URL (Perl in a Nutshell)
 
- PATH environment variable:  14.3. The Environment Variables (Learning Perl)
- 
  -  2.5. require and @INC (Learning Perl Objects, References and Modules)
-  1.3.1. How to Do It (Programming Perl)
-  19.1.3. Switches (Programming Perl)
-  19.2. Environment Variables (Programming Perl)
- security and:  23.1.2. Cleaning Up Your Environment (Programming Perl)
 
- path for library searches, %INC:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- PATH variable:  3.3. Environment Variables (Perl in a Nutshell)
- PATHEXT variable:  3.3. Environment Variables (Perl in a Nutshell)
- path_info( ) (CGI.pm):  10.7. CGI.pm Reference (Perl in a Nutshell)
- PATH_INFO variable:  9.3. Extra Path Information (Perl in a Nutshell)
- pathnames
  
  module installed on Windows system:  11.1. Using Modules (Programming Perl)
- paths, searching for installed modules/libraries:  12.7. Setting the Path at the Right Time (Learning Perl Objects, References and Modules)
- 
  -  12.7. Setting the Path at the Right Time (Learning Perl Objects, References and Modules)
 
- paths, XML:  22.. Paths (Perl Cookbook)
- path_translated( ) (CGI.pm):  10.7. CGI.pm Reference (Perl in a Nutshell)
- PATH_TRANSLATED variable:  9.3. Extra Path Information (Perl in a Nutshell)
- pattern-binding operator:  1.7. Regular Expressions (Programming Perl)
- pattern match operator (m//):  9.1. Matches with m// (Learning Perl)
- pattern matching (see regular expressions)
- pattern matching functions:  5.1. Perl Functions by Category (Perl in a Nutshell)
- pattern matching operators:  4.5.7. Pattern Match Operators (Perl in a Nutshell)
- 
  -  4.6.1. Pattern-Matching Operators (Perl in a Nutshell)
 
- pattern separators, reading data with:  6.7.1. Problem (Perl Cookbook)
- pattern space:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- patterns:  7.1. What Are Regular Expressions? (Learning Perl)
- 
  -  7.1. What Are Regular Expressions? (Learning Perl)
-  7.2. Using Simple Patterns (Learning Perl)
- autosplitting via -a switch:  19.1.3. Switches (Programming Perl)
- debugger, commands for matching:  20.2.5. Locating Code (Programming Perl)
- fancy patterns:  5.10.1. Lookaround Assertions (Programming Perl)
- manpages for:  8.5.2. And There's More (Learning Perl)
- replacements, changes in Perl versions:  24.1.5. Previous Perl Traps (Programming Perl)
- split operator and:  9.7. The split Operator (Learning Perl)
- test program for:  7.3. A Pattern Test Program (Learning Perl)
 
- patterns (and regular expressions):  1.7. Regular Expressions (Programming Perl)
- 
  -  5. Pattern Matching (Programming Perl)
-  29.2.92. m// (Programming Perl)
- alphanumeric metasymbols:  5.3.1. Metasymbol Tables (Programming Perl)
- assertions, defining your own:  5.10.4. Defining Your Own Assertions (Programming Perl)
- assertions in:  5.1. The Regular Expression Bestiary (Programming Perl)
- backreferences:  1.7.4. Backreferences (Programming Perl)
- 
    -  5.7.1. Capturing (Programming Perl)
 
- capturing in:  5.7. Capturing and Clustering (Programming Perl)
- character classes:  1.7. Regular Expressions (Programming Perl)
- 
    -  5.4. Character Classes (Programming Perl)
 
- characters in:  5.1. The Regular Expression Bestiary (Programming Perl)
- clustering in:  5.7.2. Clustering (Programming Perl)
- conditional interpolation in:  5.10.3.5. Conditional interpolation (Programming Perl)
- controlling matching:  5.9. Staying in Control (Programming Perl)
- 
    
    - Perl flow control, deciding pattern execution:  5.9.1. Letting Perl Do the Work (Programming Perl)
- regex compiler:  5.9.3. The Regex Compiler (Programming Perl)
 
- extension syntax:  5.3.1. Metasymbol Tables (Programming Perl)
- extensions
- 
    
    - lookaround assertions:  5.10.1. Lookaround Assertions (Programming Perl)
 
- finding duplicate words in paragraphs:  5.2.1. Pattern Modifiers (Programming Perl)
- functions for matching:  29.1. Perl Functions by Category (Programming Perl)
- generated:  5.10.3.1. Generated patterns (Programming Perl)
- greedy matching:  1.7.1. Quantifiers (Programming Perl)
- 
    -  5.9.4. The Little Engine That /Could(n't)?/ (Programming Perl)
 
- grep function and:  29.2.72. grep (Programming Perl)
- match-time code evaluation:  5.10.3.3. Match-time code evaluation (Programming Perl)
- match-time pattern interpolation:  5.10.3.4. Match-time pattern interpolation (Programming Perl)
- matching
- 
    
    - operators for:  1.7. Regular Expressions (Programming Perl)
- 
      -  5.2. Pattern-Matching Operators (Programming Perl)
 
- special variables for:  5.2. Pattern-Matching Operators (Programming Perl)
- 
      -  5.2.3. The s/// Operator (Substitution) (Programming Perl)
 
- substrings corresponding to subpatterns:  5.2. Pattern-Matching Operators (Programming Perl)
 
- matching precedence:  5.9.4. The Little Engine That /Could(n't)?/ (Programming Perl)
- metacharacters and metasymbols in:  5.3. Metacharacters and Metasymbols (Programming Perl)
- metasymbols in:  5.3.2. Specific Characters (Programming Perl)
- minimal matching:  1.7.2. Minimal Matching (Programming Perl)
- modifiers
    cloistering:  5.7.3. Cloistered Pattern Modifiers (Programming Perl)
- modifiers for:  5.2.1. Pattern Modifiers (Programming Perl)
- Perl code, interjecting into:  5.10.3. Programmatic Patterns (Programming Perl)
- positions for matching:  5.6. Positions (Programming Perl)
- programming style for:  5.10.3. Programmatic Patterns (Programming Perl)
- quantifiers in:  5.1. The Regular Expression Bestiary (Programming Perl)
- 
    -  5.3.1. Metasymbol Tables (Programming Perl)
-  5.5. Quantifiers (Programming Perl)
-  5.9.4. The Little Engine That /Could(n't)?/ (Programming Perl)
 
- quotes in:  2.6.3. Pick Your Own Quotes (Programming Perl)
- re pragma, altering default behavior of:  32.1.13. Perl Language Extensions and Internals (Programming Perl)
- recursive matching:  5.10.3.4. Match-time pattern interpolation (Programming Perl)
- security concerns:  23.3.2. Code Masquerading as Data (Programming Perl)
- split function:  29.2.161. split (Programming Perl)
- split function and:  5.2. Pattern-Matching Operators (Programming Perl)
- study function:  29.2.166. study (Programming Perl)
- substitution evaluation:  5.10.3.2. Substitution evaluations (Programming Perl)
- terminating delimiter for:  5.2. Pattern-Matching Operators (Programming Perl)
- Unicode properties, matching on:  15.2. Effects of Character Semantics (Programming Perl)
- for untainting data:  23.1.1. Detecting and Laundering Tainted Data (Programming Perl)
 
- PAUSE:  22.3. Creating CPAN Modules (Programming Perl)
- PAUSE (Perl Authors Upload Server) ID:  15.2. Getting Prepared (Learning Perl Objects, References and Modules)
- 
  -  15.4. Uploading Your Distribution (Learning Perl Objects, References and Modules)
 
- PauseService( ) (Win32::Service):  22.17. Win32::Service (Perl in a Nutshell)
- pausing scripts:  29.2.156. sleep (Programming Perl)
- PDL (Perl Data Language):  2.13.2. Solution (Perl Cookbook)
- 
  -  22.1. The CPAN modules Directory (Programming Perl)
- modules, matrix multiplication:  2.13.2. Solution (Perl Cookbook)
 
- PeekInput( ) (Win32::Console):  22.2. Win32::Console (Perl in a Nutshell)
- Peer option (IO::Socket::UNIX):  15.2.5. IO::Socket::UNIX Reference (Perl in a Nutshell)
- peeraddr( ) (IO::Socket::INET):  15.2.4.1. IO::Socket::INET methods (Perl in a Nutshell)
- PeerAddr option (IO::Socket::INET):  15.2.4. IO::Socket::INET Reference (Perl in a Nutshell)
- peerhost( ) (IO::Socket::INET):  15.2.4.1. IO::Socket::INET methods (Perl in a Nutshell)
- peerpath (IO::Socket::UNIX):  15.2.5. IO::Socket::UNIX Reference (Perl in a Nutshell)
- peerport( ) (IO::Socket::INET):  15.2.4.1. IO::Socket::INET methods (Perl in a Nutshell)
- PeerPort option (IO::Socket::INET):  15.2.4. IO::Socket::INET Reference (Perl in a Nutshell)
- percent sign (%):
   29.2.189. unpack (Programming Perl)
- 
  - dereferencing with:  4.8.2. Dereferencing (Perl in a Nutshell)
- hashes:  5.. Introduction (Perl Cookbook)
- indicating conversion:  6.5. Formatted Output with printf (Learning Perl)
- indicating entire hash:  5.2.1. The Hash as a Whole (Learning Perl)
- modulus operator:  4.5.3. Arithmetic Operators (Perl in a Nutshell)
- printing:  6.5. Formatted Output with printf (Learning Perl)
- prototype symbol (hash):  4.7.5. Prototypes (Perl in a Nutshell)
- %SIG hash:  16.15.2. Solution (Perl Cookbook)
- %= (assignment) operator:  4.5.6. Assignment Operators (Perl in a Nutshell)
- %SIG:  4.10. Signals (Perl in a Nutshell)
 
- performance:  0.1. The Pursuit of Happiness (Programming Perl)
- 
  
  - backreferences and:  1.11.3. Discussion (Perl Cookbook)
- CGI programs:  9. CGI Overview (Perl in a Nutshell)
- CGI scripts, with mod_perl:  11.4. Running CGI Scripts with mod_perl (Perl in a Nutshell)
- database access, speeding with mod_perl:  21.8.1. Problem (Perl Cookbook)
- event-based XML parsing:  22.3.1. Problem (Perl Cookbook)
- measuring:  29.2.181. times (Programming Perl)
- Perl programs, efficiency in:  24.2. Efficiency (Programming Perl)
- presizing hashes:  5.14.3. Discussion (Perl Cookbook)
- web server, improving:  21.12.1. Problem (Perl Cookbook)
 
- performance, slowed by automatic match variables:  9.5.2. The Automatic Match Variables (Learning Perl)
- period:
   4.5.6. Assignment Operators (Perl in a Nutshell)
-  1.7.1. Quantifiers (Programming Perl)
 
- #!perl:  1.4.2. What's Inside That Program? (Learning Perl)
- perl-bin directory:  11.4. Running CGI Scripts with mod_perl (Perl in a Nutshell)
- perl command
- 
  
  - -d option:  5.1. Using the Debugger to View Complex Data (Learning Perl Objects, References and Modules)
- -I option:  2.5.3. Extending @INC with -I (Learning Perl Objects, References and Modules)
- 
    -  13.10. Using the Alternate Library Location (Learning Perl Objects, References and Modules)
 
- -M option:  13.10. Using the Alternate Library Location (Learning Perl Objects, References and Modules)
- -V command line option:  2.5. require and @INC (Learning Perl Objects, References and Modules)
- -V:make:  13.5. Controlling the Distribution with Makefile.PL (Learning Perl Objects, References and Modules)
- -w option:  10.3. Indirect Object Notation (Learning Perl Objects, References and Modules)
- 
    -  A.3.1. Exercise 1 (Section 4.9.1) (Learning Perl Objects, References and Modules)
 
- PREFIX= option (Makefile.PL):  13.6. Alternate Installation Locations (PREFIX=...) (Learning Perl Objects, References and Modules)
- 
    -  13.10. Using the Alternate Library Location (Learning Perl Objects, References and Modules)
 
 
- Perl Data Language (see PDL)
- Perl Data Language (PDL) module:  9.1.4. Slices (Programming Perl)
- PERL_DEBUG_MSTATS variable:  3.3. Environment Variables (Perl in a Nutshell)
- PERL_DESTRUCT_LEVEL variable:  3.3. Environment Variables (Perl in a Nutshell)
- 
  -  12.6.1. Garbage Collection with DESTROY Methods (Programming Perl)
 
- perl executable:  3. The Perl Executable (Perl in a Nutshell)
- Perl, history of:  27.1. History Made Practical (Programming Perl)
- Perl identifiers:  2.5. Scalar Variables (Learning Perl)
- Perl interpreter:  1.3.1. How to Do It (Programming Perl)
- 
  -  18.1. The Life Cycle of a Perl Program (Programming Perl)
- -a switch:  19.1.3. Switches (Programming Perl)
- -c switch:  19.1.3. Switches (Programming Perl)
- -d switch:  19.1.3. Switches (Programming Perl)
- 
    -  20. The Perl Debugger (Programming Perl)
 
- -e switch:  1.3.1. How to Do It (Programming Perl)
- 
    -  19.1.3. Switches (Programming Perl)
 
- -F switch:  19.1.3. Switches (Programming Perl)
- 
    -  19.1.3. Switches (Programming Perl)
 
- -h switch:  19.1.3. Switches (Programming Perl)
- -- switch:  19.1.3. Switches (Programming Perl)
- -I switch:  19.1. Command Processing (Programming Perl)
- 
    -  19.1.3. Switches (Programming Perl)
 
- -l switch:  19.1.3. Switches (Programming Perl)
- -m switch:  19.1.3. Switches (Programming Perl)
- -n switch:  19.1.3. Switches (Programming Perl)
- -p switch:  19.1.3. Switches (Programming Perl)
- -s switch:  19.1.3. Switches (Programming Perl)
- 
    -  20. The Perl Debugger (Programming Perl)
 
- switches:  19.1.3. Switches (Programming Perl)
- -T switch:  19.1.3. Switches (Programming Perl)
- -u switch:  19.1.3. Switches (Programming Perl)
- -v switch:  19.1.3. Switches (Programming Perl)
- -w switch:  1.3.1. How to Do It (Programming Perl)
- 
    -  19.1.3. Switches (Programming Perl)
 
- -x switch:  19.1. Command Processing (Programming Perl)
- 
    -  19.1.3. Switches (Programming Perl)
 
- -0 switch:  19.1. Command Processing (Programming Perl)
- 
    -  19.1.3. Switches (Programming Perl)
 
 
- perl interpreter program
- 
  
  - -a switch:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- -d switch:  20.6. The Perl Profiler (Programming Perl)
- sticky bit:  24.2.1. Time Efficiency (Programming Perl)
- -T switch:  16.5.2. Networking Servers (Programming Perl)
- 
    -  23.1. Handling Insecure Data (Programming Perl)
 
- -w switch:  33. Diagnostic Messages (Programming Perl)
 
- Perl Journal:  1.4.7. The Perl Journal (Perl in a Nutshell)
- Perl language:  1. Introduction to Perl (Perl in a Nutshell)
- 
  
  - bugs in, reporting:  6.6. The perlbug Program (Perl in a Nutshell)
- development of:  1.2. Perl Development (Perl in a Nutshell)
- documentation:  2.5. Documentation (Perl in a Nutshell)
- 
    -  4.13. Pod (Perl in a Nutshell)
- = (equals sign), and:  4.1. Program Structure (Perl in a Nutshell)
- utilities for:  4.13.3. Pod Utilities (Perl in a Nutshell)
 
- example scripts:  2.3.1.1. Perl examples (Perl in a Nutshell)
- installing source code:  2.3. Installing Perl (Perl in a Nutshell)
- multithreading, and:  3.5. Threads (Perl in a Nutshell)
- obtaining source from CPAN:  2. Installing Perl (Perl in a Nutshell)
- resources:  1.4. Perl Resources (Perl in a Nutshell)
- signals, handling:  4.10. Signals (Perl in a Nutshell)
- uses of:  1.1. What's Perl Good For? (Perl in a Nutshell)
- v. 5.8, I/O:  4.9.1. Perl 5.8 and PerlIO (Perl in a Nutshell)
 
- Perl library:  22.2.3. Installing CPAN Modules into the Perl Library (Programming Perl)
- PERL_MAILERS variable:  16.2.1. Send Email with Mail::Mailer (Perl in a Nutshell)
- PERL_MODULE_EXT variable:  3.4. The Perl Compiler (Perl in a Nutshell)
- Perl Monastery:  1.3.3. Are There Any Other Kinds of Support? (Learning Perl)
- Perl Mongers:  1.4.6. Perl Mongers (www.perl.org) (Perl in a Nutshell)
- Perl Package Manager (PPM):  2.4.3.2. Using the Perl Package Manager (Perl in a Nutshell)
- perl-packrats mailing list:  15.1. The Comprehensive Perl Archive Network (Learning Perl Objects, References and Modules)
- perl (Perl interpreter):  3. The Perl Executable (Perl in a Nutshell)
- 
  
  - command-line options:  3.2. Command-Line Options (Perl in a Nutshell)
- command processing:  3.1. Command Processing (Perl in a Nutshell)
 
- Perl profiler (DProf):  6.5. The Perl Profiler (Perl in a Nutshell)
- PERL_SCRIPT_EXT variable:  3.4. The Perl Compiler (Perl in a Nutshell)
- perl-script handler:  11.3. mod_perl Handlers (Perl in a Nutshell)
- 
  -  11.4. Running CGI Scripts with mod_perl (Perl in a Nutshell)
 
- $PERL_VERSION ($]) variable:  4.4.1. Global Special Variables (Perl in a Nutshell)
- Perl virtual machine:  18.3. Executing Your Code (Programming Perl)
- 
  -  18.3. Executing Your Code (Programming Perl)
 
- perlapi manpage:  21.4.4. Evaluating a Perl Statement from C (Programming Perl)
- perlboot manpage, object-oriented programming and:  B.20.2. Object-Oriented Programming (Learning Perl)
- perlbug program:  6.6. The perlbug Program (Perl in a Nutshell)
- perlbug utility:  1.3.4. What If I Find a Bug in Perl? (Learning Perl)
- perlcall manpage:  21.4.5. Fiddling with the Perl Stack from C (Programming Perl)
- perlcc:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- perlcc command:  18.4. Compiler Backends (Programming Perl)
- 
  
  - pbyscript resulting from:  18.5.1. The Bytecode Generator (Programming Perl)
 
- perlcc utility:  3.4. The Perl Compiler (Perl in a Nutshell)
- perldata manpage, here documents and:  B.8.2. Here documents (Learning Perl)
- $PERLDB:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- PERL5DB environment variable:  19.2. Environment Variables (Programming Perl)
- 
  
  - debugger, customizing with:  20.3.2. Customizing with Init Files (Programming Perl)
 
- .perldb file:  6.4. Customizing the Debugger (Perl in a Nutshell)
- $PERLDB ($^P) variable:  4.4.1. Global Special Variables (Perl in a Nutshell)
- PERLDB_OPTS environment variable
- 
  
  - AutoTrace option, tracing compile-phase statements:  20.1. Using the Debugger (Programming Perl)
- debugger customization via:  20.3. Debugger Customization (Programming Perl)
 
- PERLDB_OPTS variable:  6.4. Customizing the Debugger (Perl in a Nutshell)
- perldebug manpage:  B.15. Debugging (Learning Perl)
- PERL_DEBUG_MSTATS environment variable:  19.2. Environment Variables (Programming Perl)
- PERL_DESTRUCT_LEVEL environment variable:  19.2. Environment Variables (Programming Perl)
- perldiag manpage:  1.4.2. What's Inside That Program? (Learning Perl)
- 
  
  - errors and:  17.1. Trapping Errors with eval (Learning Perl)
- warnings explained in:  2.4. Perl's Built-in Warnings (Learning Perl)
 
- perldoc command:  1.5. A Whirlwind Tour of Perl (Learning Perl)
- 
  -  4.13.3. Pod Utilities (Perl in a Nutshell)
-  8. Standard Modules (Perl in a Nutshell)
-  0.4. Online Documentation (Programming Perl)
-  11. Modules (Programming Perl)
- debugger invoking:  20.2.7. Miscellaneous Commands (Programming Perl)
 
- perldoc manpage:  B.1. Further Documentation (Learning Perl)
- perldsc manpage, data structures and:  B.20.1. Complex Data Structures (Learning Perl)
- perlembed manpage:  21.4. Embedding Perl (Using Perl from C) (Programming Perl)
- 
  
  - eval_sv function, demonstrating:  21.4.4. Evaluating a Perl Statement from C (Programming Perl)
 
- perlfaq manpage:  10.5. The elsif Clause (Learning Perl)
- 
  -  B.1. Further Documentation (Learning Perl)
 
- perlfork documentation:  16. Interprocess Communication (Programming Perl)
- perlfork manpage:  B.31. Threads and Forking (Learning Perl)
- perlform manpage, formats and:  B.12. Formats (Learning Perl)
- perlfunc manpage:  10.4. The Naked Block Control Structure (Learning Perl)
- 
  
  - format letters and:  16.2. Manipulating Data with pack and unpack (Learning Perl)
- grep operator and:  B.10.1. map and grep (Learning Perl)
- map operator and:  B.10.1. map and grep (Learning Perl)
- mathematical functions and:  B.9.1. Advanced Math Functions (Learning Perl)
- operators and:  B.8. Other Operators and Functions (Learning Perl)
- splice operator and:  B.10.2. The splice Operator (Learning Perl)
- System V IPC and:  B.13.1. System V IPC (Learning Perl)
- vec operator and:  B.11. Bits and Pieces (Learning Perl)
 
- PerlHandler directive (mod_perl):  11.3. mod_perl Handlers (Perl in a Nutshell)
- PerlIO modules:  4.9.1. Perl 5.8 and PerlIO (Perl in a Nutshell)
- 
  -  8.170. PerlIO (Perl in a Nutshell)
- PerlIO::Scalar:  8.171. PerlIO::Scalar (Perl in a Nutshell)
- PerlIO::Via:  8.172. PerlIO::Via (Perl in a Nutshell)
 
- perlipc manpage:  14.6. Getting Down and Dirty with Fork (Learning Perl)
- perlipc module, System V IPC and:  B.13.1. System V IPC (Learning Perl)
- perllexwarn manpage:  2.4. Perl's Built-in Warnings (Learning Perl)
- PERL5LIB environment variable:  12.8.3. Discussion (Perl Cookbook)
- 
  -  2.5.2. Extending @INC with PERL5LIB (Learning Perl Objects, References and Modules)
-  19.2. Environment Variables (Programming Perl)
 
- PERLLIB variable:  3.3. Environment Variables (Perl in a Nutshell)
- perllocale manpage:  B.30. Locales and Unicode (Learning Perl)
- 
  -  29.2.82. lc (Programming Perl)
 
- perllol manpage, data structures and:  B.20.1. Complex Data Structures (Learning Perl)
- perlmenu module:  15.12.3. Description (Perl Cookbook)
- perlmod manpage
- 
  
  - syntax extensions and:  B.19. Syntax Extensions (Learning Perl)
- writing modules and:  B.4.4. Writing Your Own Modules (Learning Perl)
 
- perlmodinstall manpage:  B.4.3. Finding and Installing Modules (Learning Perl)
- 
  -  22.2. Using CPAN Modules (Programming Perl)
 
- perlmodlib manpage
- 
  
  - pragmas and:  B.6. Pragmas (Learning Perl)
- writing modules and:  B.4.4. Writing Your Own Modules (Learning Perl)
 
- PerlModule directive (mod_perl):  11.4. Running CGI Scripts with mod_perl (Perl in a Nutshell)
- perlobj manpage, object-oriented programming and:  B.20.2. Object-Oriented Programming (Learning Perl)
- perlop manpage
- 
  
  - bitwise operators and:  11.6.4. Using Bitstrings (Learning Perl)
- operators and:  B.8. Other Operators and Functions (Learning Perl)
 
- perlopentut manpage, filehandles and:  B.29. More Ways to Open Filehandles (Learning Perl)
- PERL5OPT environment variable:  19.2. Environment Variables (Programming Perl)
- PERL5OPT variable:  3.3. Environment Variables (Perl in a Nutshell)
- perlpod manpage:  B.28. Embedded Documentation (Learning Perl)
- perlport documentation:  16. Interprocess Communication (Programming Perl)
- perlport manpage, standard input/output and:  11.1. What Is a Filehandle? (Learning Perl)
- perlre manpage:  8.5.2. And There's More (Learning Perl)
- 
  -  B.2. Regular expressions (Learning Perl)
 
- perlref manpage, references and:  B.20. References (Learning Perl)
- perlreftut manpage, references and:  B.20. References (Learning Perl)
- perlrequick manpage:  8.5.2. And There's More (Learning Perl)
- 
  -  B.2. Regular expressions (Learning Perl)
 
- perlretut manpage:  8.5.2. And There's More (Learning Perl)
- 
  -  B.2. Regular expressions (Learning Perl)
 
- perlrun manpage, command-line options and:  16.4.1. In-place Editing from the Command Line (Learning Perl)
- 
  -  B.17. Command-Line Options (Learning Perl)
 
- perlsec manpage:  B.14. Security (Learning Perl)
- PERL5SHELL environment variable:  19.2. Environment Variables (Programming Perl)
- PERL5SHELL variable:  3.3. Environment Variables (Perl in a Nutshell)
- perl_stringify function (ExtUtils::Constant module):  8.69. ExtUtils::Constant (Perl in a Nutshell)
- perlsyn manpage:  10.7. The for Control Structure (Learning Perl)
- 
  
  - continue block and:  10.8.2. The next Operator (Learning Perl)
- syntax extensions and:  B.19. Syntax Extensions (Learning Perl)
 
- perlthrtut manpage:  B.31. Threads and Forking (Learning Perl)
- perltie manpage, tied variables and:  B.21. Tied Variables (Learning Perl)
- Perl/Tk:  21. Perl/Tk (Perl in a Nutshell)
- 
  -  24.2.6. User Efficiency (Programming Perl)
- callbacks:  21.1.3. Callbacks (Perl in a Nutshell)
- colors and fonts:  21.1.4. Colors and Fonts (Perl in a Nutshell)
- geometry managers:  21.2. Geometry Managers (Perl in a Nutshell)
- Perl modules for:  22.1. The CPAN modules Directory (Programming Perl)
- scrollbars:  21.1.2. Scrollbars (Perl in a Nutshell)
- widgets:  21.1. Widgets (Perl in a Nutshell)
- 
    
    - Button widget:  21.4. The Button Widget (Perl in a Nutshell)
- Canvas widget:  21.12. The Canvas Widget (Perl in a Nutshell)
- Checkbutton widget:  21.5. The Checkbutton Widget (Perl in a Nutshell)
- common configuration options:  21.3. Common Widget Configuration Options (Perl in a Nutshell)
- Entry widget:  21.8. The Entry Widget (Perl in a Nutshell)
- Frame widget:  21.17. The Frame Widget (Perl in a Nutshell)
- Label widget:  21.7. The Label Widget (Perl in a Nutshell)
- Listbox widget:  21.10. The Listbox Widget (Perl in a Nutshell)
- Menu widget:  21.15. The Menu Widget (Perl in a Nutshell)
- Menubutton widget:  21.14. The Menubutton Widget (Perl in a Nutshell)
- Optionmenu widget:  21.16. The Optionmenu Widget (Perl in a Nutshell)
- Radiobutton widget:  21.6. The Radiobutton Widget (Perl in a Nutshell)
- Scale widget:  21.13. The Scale Widget (Perl in a Nutshell)
- Scrollbar widget:  21.9. The Scrollbar Widget (Perl in a Nutshell)
- Text widget:  21.11. The Text Widget (Perl in a Nutshell)
- toplevel widget:  21.18. The Toplevel Widget (Perl in a Nutshell)
 
- widgets methods:  21.1.1. Widget Methods (Perl in a Nutshell)
 
- perltoc manpage:  B.1. Further Documentation (Learning Perl)
- PERL_UNICODE environment variable:  8.21.3. Discussion (Perl Cookbook)
- perlvar manpage, builtin variables and:  B.18. Built in Variables (Learning Perl)
- $PERL_VERSION:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- 
  -  28.2. Special Variables in Alphabetical Order (Programming Perl)
 
- perlwin32 documentation:  16. Interprocess Communication (Programming Perl)
- permissions:  29.2.171. sysopen (Programming Perl)
- 
  -  29.2.186. umask (Programming Perl)
- CGI scripts:  19.3.3.2. Make sure the script has permissions to do what it's trying to do (Perl Cookbook)
- changing:  13.5. Modifying Permissions (Learning Perl)
- file permission operators, interpreting:  3.10. Named Unary and File Test Operators (Programming Perl)
- libraries:  19.3.3.3. Is the script valid Perl? (Perl Cookbook)
- symbolic file, instead of octal values:  9.11.1. Problem (Perl Cookbook)
- testing files for trustworthiness:  8.17.1. Problem (Perl Cookbook)
- Unix and:  13.1. Removing Files (Learning Perl)
- users, granting limited:  23.1. Handling Insecure Data (Programming Perl)
 
- permutations, generating all possible:  4.20. Program: permute (Perl Cookbook)
- permute program:  4.20. Program: permute (Perl Cookbook)
- persistent
- 
  
  - data structures:  11.14.1. Problem (Perl Cookbook)
- database data:  14.7.1. Problem (Perl Cookbook)
- private subroutine variables:  10.3.1. Problem (Perl Cookbook)
 
- persistent data structures, providing via tie:  14.6. Tie Modules on CPAN (Programming Perl)
- persistent Perl interpreter:  21.4. Embedding Perl (Using Perl from C) (Programming Perl)
- personal identification number (PIN):  6.19.3. Discussion (Perl Cookbook)
- PF_ constants:  17.. Introduction (Perl Cookbook)
- .ph filename extension:  12.17.3. Discussion (Perl Cookbook)
- PHP, communicating with mod_perl:  21.11.1. Problem (Perl Cookbook)
- phrase( ) (Mail::Address):  16.2.6. Parse Email Addresses with Mail::Address (Perl in a Nutshell)
- 
  -  16.2.7. Mail::Address Reference (Perl in a Nutshell)
 
- pi:  29.2.4. atan2 (Programming Perl)
- picture lines:  7. Formats (Programming Perl)
- 
  -  29.2.41. format (Programming Perl)
 
- pid (see processes)
- PID (process ID):  28.2. Special Variables in Alphabetical Order (Programming Perl)
- $PID ($$) variable:  4.4.1. Global Special Variables (Perl in a Nutshell)
- PIN (personal identification number):  6.19.3. Discussion (Perl Cookbook)
- ping( ) (DBI):  12.3. DBI Methods (Perl in a Nutshell)
- pinging machines:  18.7.1. Problem (Perl Cookbook)
- pipe( ):  5. Function Reference (Perl in a Nutshell)
- pipe( ):  16.. Process Creation (Perl Cookbook)
- 
  -  16.10.2. Solution (Perl Cookbook)
 
- pipe function:  29.2.110. pipe (Programming Perl)
- 
  
  - portability of:  25.5. Interprocess Communication (IPC) (Programming Perl)
 
- pipelines
- 
  
  - multistage, for input:  16.3.1. Anonymous Pipes (Programming Perl)
- multistage, for output:  16.3.1. Anonymous Pipes (Programming Perl)
 
- pipes
- 
  
  - closing:  29.2.16. close (Programming Perl)
- double-ended, opening with tied filehandle:  14.4.2. Creative Filehandles (Programming Perl)
- in interprocess communication:  16.3. Pipes (Programming Perl)
- 
    
    - named pipes:  16.3.4. Named Pipes (Programming Perl)
- process talking to itself:  16.3.2. Talking to Yourself (Programming Perl)
 
- IO::Pipe module:  32.1.5. Filehandle, Directory Handle, and
Stream I/O Utilities (Programming Perl)
- named: Glossary (Programming Perl)
- open function, security risks posed by:  23.1.2. Cleaning Up Your Environment (Programming Perl)
- read-only filehandles, opening:  29.2.104. open (Programming Perl)
 
- .pl (Perl Library) extension:  2.3. Using do (Learning Perl Objects, References and Modules)
- place geometry manager (Perl/Tk):  21.2.3. The place Geometry Manager (Perl in a Nutshell)
- placeForget( ) (place geometry manager):  21.2.3. The place Geometry Manager (Perl in a Nutshell)
- placeholders (DBI):  12.2.4. Placeholders and Statement Handles (Perl in a Nutshell)
- placeInfo( ) (place geometry manager):  21.2.3. The place Geometry Manager (Perl in a Nutshell)
- places( ):  13.14.5. Example: Overloaded FixNum Class (Perl Cookbook)
- placeSlaves( ) (place geometry manager):  21.2.3. The place Geometry Manager (Perl in a Nutshell)
- plain old documentation (see pod)
- plain-old documentation format:  B.28. Embedded Documentation (Learning Perl)
- platforms supporting Perl:  1.3. Which Platforms Support Perl? (Perl in a Nutshell)
- pl2bat.bat:  3. The Perl Executable (Perl in a Nutshell)
- pluralities:  1.2.1.2. Pluralities (Programming Perl)
- pluralizing words:  2.17.1. Problem (Perl Cookbook)
- + (plus) ;unary operator:  3.5. Ideographic Unary Operators (Programming Perl)
- plus (+)
- 
  
  - 2:  4.5.5. Autoincrement and Autodecrement (Perl in a Nutshell)
- regular expression metacharacter:  4.6.2. Regular Expression Syntax (Perl in a Nutshell)
- unary operator:  4.5.2. Unary Operators (Perl in a Nutshell)
- += (assignment) operator:  4.5.6. Assignment Operators (Perl in a Nutshell)
 
- plus sign (+), as quantifier:  7.2.2. Simple Quantifiers (Learning Perl)
- plus sign (+), file-access modes:  7.1.3. Discussion (Perl Cookbook)
- .plx (Perl Executable) extension:  2.3. Using do (Learning Perl Objects, References and Modules)
- .plx file extension:  1.4.1. A Simple Program (Learning Perl)
- .pm (Perl Module) extension:  12.6. What use Is Doing (Learning Perl Objects, References and Modules)
- .pm file extension:  10. Packages (Programming Perl)
- .pm filename extension:  12.. Modules (Perl Cookbook)
- .pm files:  7.1. What Are Regular Expressions? (Learning Perl)
- 
  
  - loading associated files with:  11.1. Using Modules (Programming Perl)
 
- pnotes
- 
  
  - Apache requests, sharing information between handlers:  21.13.2. Solution (Perl Cookbook)
- URLs, storing information in:  21.10.2. Solution (Perl Cookbook)
 
- pod
- 
  
  - converting into other languages:  12.20.3. Discussion (Perl Cookbook)
- directives:  26.1.2. Pod Directives (Programming Perl)
- 
    - Glossary (Programming Perl)
 
- documentation:  12.20.1. Problem (Perl Cookbook)
- 
    
    - sorting =head1 sections:  15.22. Program: tkshufflepod (Perl Cookbook)
 
- embedding in Perl:  2.2. Molecules (Programming Perl)
- Perl modules for:  22.1. The CPAN modules Directory (Programming Perl)
 
- =pod command (pod):  4.13.1. Paragraph Tags (Perl in a Nutshell)
- pod documentation:  2.5. Documentation (Perl in a Nutshell)
- 
  -  4.13. Pod (Perl in a Nutshell)
- = to signify in programs:  4.1. Program Structure (Perl in a Nutshell)
- utilities for:  4.13.3. Pod Utilities (Perl in a Nutshell)
 
- pod format:  B.28. Embedded Documentation (Learning Perl)
- 
  -  26. Plain Old Documentation (Programming Perl)
 
- Pod::Functions module:  8.173. Pod::Functions (Perl in a Nutshell)
- Pod::Html module:  8.174. Pod::Html (Perl in a Nutshell)
- pod modules:  26.2. Pod Translators and Modules (Programming Perl)
- Pod::Text module:  8.176. Pod::Text (Perl in a Nutshell)
- pod translators:  26.1. Pod in a Nutshell (Programming Perl)
- 
  -  26.2. Pod Translators and Modules (Programming Perl)
 
- Pod::Checker module:  32.1.16. Documentation Support (Programming Perl)
- pod2fm utility:  4.13.3. Pod Utilities (Perl in a Nutshell)
- Pod::Functions module:  32.1.16. Documentation Support (Programming Perl)
- pod2html:  12.20.3. Discussion (Perl Cookbook)
- Pod::Html module:  32.1.16. Documentation Support (Programming Perl)
- pod2html utility:  4.13.3. Pod Utilities (Perl in a Nutshell)
- 
  -  8.174. Pod::Html (Perl in a Nutshell)
 
- Pod::InputObjects module:  32.1.16. Documentation Support (Programming Perl)
- pod2latex utility:  4.13.3. Pod Utilities (Perl in a Nutshell)
- pod2man:  12.20.3. Discussion (Perl Cookbook)
- Pod::Man module:  32.1.16. Documentation Support (Programming Perl)
- pod2man utility:  4.13.3. Pod Utilities (Perl in a Nutshell)
- Pod::ParseLink module:  8.175. Pod::ParseLink (Perl in a Nutshell)
- Pod::Parser module:  32.1.16. Documentation Support (Programming Perl)
- Pod::Select module:  32.1.16. Documentation Support (Programming Perl)
- Pod::Text module:  32.1.16. Documentation Support (Programming Perl)
- pod2text tools:  12.20.3. Discussion (Perl Cookbook)
- pod2text utility:  4.13.3. Pod Utilities (Perl in a Nutshell)
- 
  -  8.176. Pod::Text (Perl in a Nutshell)
 
- Pod::Text::Termcap module:  32.1.16. Documentation Support (Programming Perl)
- Pod::Usage module:  32.1.16. Documentation Support (Programming Perl)
- POE framework, writing multitasking server with:  17.15.1. Problem (Perl Cookbook)
- POE (Perl Object Environment):  22.1. The CPAN modules Directory (Programming Perl)
- POE::Component::Server::TCP module:  17.15.2. Solution (Perl Cookbook)
- poetry in Perl:  27.2. Perl Poetry (Programming Perl)
- pointers:  2.3. Built-in Data Types (Programming Perl)
- 
  
  - references, unable to convert to:  2.6. Scalar Values (Programming Perl)
- to strings:  29.2.108. pack (Programming Perl)
 
- pointers (C language):  8. References (Programming Perl)
- pointers (C programming language):  B.20. References (Learning Perl)
- poll function:  32.1.5. Filehandle, Directory Handle, and
Stream I/O Utilities (Programming Perl)
- polluting your namespace:  11.2.1. Module Privacy and the Exporter (Programming Perl)
- polymorphism:  12.1. Brief Refresher on Object-Oriented Lingo (Programming Perl)
- 
  - Glossary (Programming Perl)
 
- pop( ):  5. Function Reference (Perl in a Nutshell)
- pop( ), circular lists:  4.17.2. Solution (Perl Cookbook)
- pop function:  9. Data Structures (Programming Perl)
- 
  -  29.2.111. pop (Programming Perl)
 
- POP method:  14.2.1. Array-Tying Methods (Programming Perl)
- pop operator:  3.4.1. The pop and push Operators (Learning Perl)
- POP (Post Office Protocol):  18.5.3. Discussion (Perl Cookbook)
- 
  - 
    
    - fetching and summarizing messages:  18.15. Program: rfrm (Perl Cookbook)
- logging in:  18.5.3. Discussion (Perl Cookbook)
 
 
- POP3 protocol, interface to:  16.1.3. Retrieving Email with Net::POP3 (Perl in a Nutshell)
- 
  -  16.2.8. Checking Blacklisted Hosts with Mail::RBL (Perl in a Nutshell)
 
- POP3 servers:  18.5.1. Problem (Perl Cookbook)
- popen function (C language):  21.4. Embedding Perl (Using Perl from C) (Programming Perl)
- popstat( ) (Net::POP3):  16.1.3. Retrieving Email with Net::POP3 (Perl in a Nutshell)
- popup_menu( ) (CGI.pm):  10.7. CGI.pm Reference (Perl in a Nutshell)
- port( )
- 
  
  - Net::FTP module:  18.2. Net::FTP (Perl in a Nutshell)
- URI::URL module:  20.5.3. URI::URL (Perl in a Nutshell)
 
- port connection attempts, logging:  17.20. Program: backsniff (Perl Cookbook)
- portability:  1.1.2. Why Are There So Many Footnotes? (Learning Perl)
- 
  -  1.2.2. Is Perl Easy or Hard? (Learning Perl)
- closing filehandles:  7.. I/O Operations (Perl Cookbook)
- encodings in XML:  22.. XML Declaration (Perl Cookbook)
- of files and filesystems:  25.3. Files and Filesystems (Programming Perl)
- functions, information on:  29.2. Perl Functions in Alphabetical Order (Programming Perl)
- modules and:  13.8.3. The File::Spec Module (Learning Perl)
- scripts using gethostent function:  29.2.49. gethostent (Programming Perl)
- of signals:  25.4. System Interaction (Programming Perl)
 
- portability, Perl programs:  25. Portable Perl (Programming Perl)
- Portable Operating System Interface (see POSIX)
- porting,
  
  information on:  16. Interprocess Communication (Programming Perl)
- porting, efficiency of:  24.2.5. Porter Efficiency (Programming Perl)
- ports: Glossary (Programming Perl)
- 
  
  - name/number translations for:  29.2.64. getservbyname (Programming Perl)
- Perl, to operating systems:  22. CPAN (Programming Perl)
 
- pos( ):  5. Function Reference (Perl in a Nutshell)
- 
-  6.14.3. Discussion (Perl Cookbook)
-  5.6.4. Progressive Matching (Programming Perl)
-  5.6.5. Where You Left Off: The \G Assertion (Programming Perl)
-  29.2.112. pos (Programming Perl)
- HTML::Parser:  20.4.3. HTML::Element (Perl in a Nutshell)
 
- positional assertions:  5.6.5. Where You Left Off: The \G Assertion (Programming Perl)
- 
  
  - ordering of matching, changing with:  5.8. Alternation (Programming Perl)
 
- positionfrom( ) (Frame widget):  21.18.1. Toplevel Methods (Perl in a Nutshell)
- positions:  5.6. Positions (Programming Perl)
- 
  
  - beginnings of strings, matching:  5.6.1. Beginnings: The \A and ^ Assertions (Programming Perl)
- ends of strings, matching:  5.6.2. Endings: The \z, \Z, and $ Assertions (Programming Perl)
- operators switching to character positions:  15.2. Effects of Character Semantics (Programming Perl)
- position just after previous match, specifying:  5.6.5. Where You Left Off: The \G Assertion (Programming Perl)
- precedence in pattern matching:  5.9.4. The Little Engine That /Could(n't)?/ (Programming Perl)
- substr function, manipulating with:  5.6. Positions (Programming Perl)
- word boundaries, matching:  5.6.3. Boundaries: The \b and \B Assertions (Programming Perl)
 
- positive lookahead assertions:  5.9.4. The Little Engine That /Could(n't)?/ (Programming Perl)
- 
  -  5.10.1. Lookaround Assertions (Programming Perl)
 
- POSIX classes:  5.4. Character Classes (Programming Perl)
- POSIX module:  B.5.9. The POSIX Module (Learning Perl)
- 
  -  8.177. POSIX (Perl in a Nutshell)
-  32.1.7. Operating System Interfaces (Programming Perl)
- blocking signals:  16.20.2. Solution (Perl Cookbook)
- getattr function:  29.2.43. getc (Programming Perl)
- getting exported functions and variables with:  11.1. Using Modules (Programming Perl)
- math functions and:  B.9.1. Advanced Math Functions (Learning Perl)
- signal blocking with:  16.1.4. Blocking Signals (Programming Perl)
- strftime function:  29.2.88. localtime (Programming Perl)
- today's date:  3.1.3. Discussion (Perl Cookbook)
- trigonometric functions:  2.11.2. Solution (Perl Cookbook)
 
- POSIX (Portable Operating System Interface):  0.3. Platform Notes (Perl Cookbook)
- 
  
  - termios interface:  15.8.1. Problem (Perl Cookbook)
- time( ):  3.. Introduction (Perl Cookbook)
 
- POSIX-style character classes:  5.4.4. POSIX-Style Character Classes (Programming Perl)
- POSIX::close( ):  7.9.2. Solution (Perl Cookbook)
- 
  -  7.9.3. Discussion (Perl Cookbook)
 
- POSIX::setsid( ):  17.17.3. Discussion (Perl Cookbook)
- POSIX::strtod( ):  2.1.3. Discussion (Perl Cookbook)
- POSIX::uname( ):  17.8.2. Solution (Perl Cookbook)
- possible matches, specifying set of:  5.8. Alternation (Programming Perl)
- post command (NNTP):  17.1. The NNTP Protocol (Perl in a Nutshell)
- post-incremented (post-decremented) variables:  1.5.4. Unary Arithmetic Operators (Programming Perl)
- post( ) (LWP::UserAgent):  20.2.3. LWP::UserAgent (Perl in a Nutshell)
- post( ) (Menu widget):  21.15.2. Menu Methods (Perl in a Nutshell)
- POST method:  19.. Behind the Scenes (Perl Cookbook)
- 
  -  19.1.3. Discussion (Perl Cookbook)
-  20.2.2. Solution (Perl Cookbook)
 
- POST method (CGI):  9.1.1. Transferring the Form Data (Perl in a Nutshell)
- 
  -  20.3.1. HTTP::Request (Perl in a Nutshell)
 
- post( ) (Net::NNTP):  17.2.2. Net::NNTP Reference (Perl in a Nutshell)
- Post Office Protocol (see POP)
- Post Office Protocol (POP3):  16.1.3. Retrieving Email with Net::POP3 (Perl in a Nutshell)
- postcascade( ) (Menu widget):  21.15.2. Menu Methods (Perl in a Nutshell)
- -postcommand option (Menu):  21.15. The Menu Widget (Perl in a Nutshell)
- postincrement and postdecrement operators:  3. Unary and Binary Operators (Programming Perl)
- postincrements/postdecrements:  10.6.1. The Value of Autoincrement (Learning Perl)
- posting news articles:  17.1. The NNTP Protocol (Perl in a Nutshell)
- posting Usenet messages:  18.4.1. Problem (Perl Cookbook)
- $POSTMATCH:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- $POSTMATCH ($') variable:  4.4.5. Regular Expression Special Variables (Perl in a Nutshell)
- postok( ) (Net::NNTP):  17.2.2. Net::NNTP Reference (Perl in a Nutshell)
- postscript( ) (Canvas):  21.12.3. Canvas Methods (Perl in a Nutshell)
- PostScript, converting HTML parse tree to:  20.4.5. HTML::FormatPS (Perl in a Nutshell)
- Postscript, Perl modules for:  22.1. The CPAN modules Directory (Programming Perl)
- pound sign:  3. The Perl Executable (Perl in a Nutshell)
- pound sign (#) in comments:  1.4.2. What's Inside That Program? (Learning Perl)
- pound sign (#), with printf( ):  2.15.3. Discussion (Perl Cookbook)
- PPM (Perl Package Manager):  2.4.3.2. Using the Perl Package Manager (Perl in a Nutshell)
- 
  -  22.2. Using CPAN Modules (Programming Perl)
-  22.2. Using CPAN Modules (Programming Perl)
 
- Practical Extraction and Report Language (see Perl)
- pragmas:  12.. Modules (Perl Cookbook)
- 
  -  4.10. The use strict Pragma (Learning Perl)
-  B.6. Pragmas (Learning Perl)
-  1.2.1.4. Simplicities (Programming Perl)
-  4.7. Global Declarations (Programming Perl)
-  4.9. Pragmas (Programming Perl)
-  10. Packages (Programming Perl)
-  19.1.3. Switches (Programming Perl)
-  29.2.192. use (Programming Perl)
- integer:  2.2.1. All Numbers Are the Same Format Internally (Learning Perl)
- lexically scoped:  4.9. Pragmas (Programming Perl)
- modules and:  11.1. Using Modules (Programming Perl)
- names, capitalization in:  2.5. Names (Programming Perl)
- use charnames:  2.6.2. String Literals (Programming Perl)
 
- pre-extending arrays:  24.2.1. Time Efficiency (Programming Perl)
- pre-incremented (pre-decremented) variables:  1.5.4. Unary Arithmetic Operators (Programming Perl)
- preallocating memory for hashes:  5.14.1. Problem (Perl Cookbook)
- precedence:  2.6.2. Operator Precedence and Associativity (Learning Perl)
- 
  -  8.5. Precedence (Learning Perl)
-  29. Functions (Programming Perl)
- Glossary (Programming Perl)
- diagnostic messages:  33. Diagnostic Messages (Programming Perl)
- key/value pair (hashes):  2.9. Hashes (Programming Perl)
- logical operators:  1.5.5. Logical Operators (Programming Perl)
- 
    -  3.20. Logical and, or, not, and xor (Programming Perl)
-  12.3.3. Syntactic Snafus with Indirect Objects (Programming Perl)
 
- modifiers vs. commas:  4.8.1. Scoped Variable Declarations (Programming Perl)
- operator, table of:  3. Unary and Binary Operators (Programming Perl)
- partial-evaluation operators and:  10.9.3. Control Structures Using Partial-Evaluation Operators (Learning Perl)
- Perl versions, changes in:  24.1.5. Previous Perl Traps (Programming Perl)
- regular expression matching:  5.9.4. The Little Engine That /Could(n't)?/ (Programming Perl)
- table of:  2.6.2. Operator Precedence and Associativity (Learning Perl)
- unary operators, higher than binary:  3.10. Named Unary and File Test Operators (Programming Perl)
 
- precedence, operator:  4.5. Operators (Perl in a Nutshell)
- predeclaring subroutines:  12.5.4. Method Autoloading (Programming Perl)
- 
  -  32.1.13. Perl Language Extensions and Internals (Programming Perl)
 
- predefined Perl variables:  4.4. Special Variables (Perl in a Nutshell)
- prefix operators:  1.5. Operators (Programming Perl)
- 
  -  3. Unary and Binary Operators (Programming Perl)
- metacharacters working as:  5.3. Metacharacters and Metasymbols (Programming Perl)
 
- prefixes, explicit:  2.6. The Problem of Namespace Collisions (Learning Perl Objects, References and Modules)
- preincrements/predecrements:  10.6.1. The Value of Autoincrement (Learning Perl)
- $PREMATCH:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- $PREMATCH ($`) variable:  4.4.5. Regular Expression Special Variables (Perl in a Nutshell)
- prepare( ) (DBI):  12.2.3. Database Handles and Statement Handles (Perl in a Nutshell)
- 
  -  12.3. DBI Methods (Perl in a Nutshell)
 
- prepending, directories to @INC:  19.1.3. Switches (Programming Perl)
- prepending elements to arrays:  29.2.190. unshift (Programming Perl)
- preprocessing Perl:  24.5.2. Generating Perl in Other Languages (Programming Perl)
- 
  - Glossary (Programming Perl)
 
- preprocessor (C language): Glossary (Programming Perl)
- PREREQ_PM setting (Makefiles):  13.5. Controlling the Distribution with Makefile.PL (Learning Perl Objects, References and Modules)
- prev_labeled( ) (Mail::Folder):  16.2.3. Handle Folders with Mail::Folder (Perl in a Nutshell)
- prev_message( ) (Mail::Folder):  16.2.3. Handle Folders with Mail::Folder (Perl in a Nutshell)
- prime numbers, calculating:  2.18. Program: Calculating Prime Factors (Perl Cookbook)
- print( ):  5. Function Reference (Perl in a Nutshell)
- 
  
  - Socket module:  15.1.2. Client Connections (Perl in a Nutshell)
- email attachments:  18.9.3. Discussion (Perl Cookbook)
- filehandles
- 
    
    - outputting to multiple:  7.8.3. Discussion (Perl Cookbook)
- storing in variables:  7.5.3. Discussion (Perl Cookbook)
 
-  2.6. Output with print  (Learning Perl)
-  1.4. Filehandles (Programming Perl)
-  1.8. List Processing (Programming Perl)
-  24.2.1. Time Efficiency (Programming Perl)
-  24.2.1. Time Efficiency (Programming Perl)
-  29.2.113. print (Programming Perl)
- databases records and:  16.3. Fixed-length Random-access Databases (Learning Perl)
- filehandles and:  11.4. Using Filehandles (Learning Perl)
- implementing to tied filehandle:  14.4.1. Filehandle-Tying Methods (Programming Perl)
- newlines and:  6.4. Output to Standard Output (Learning Perl)
- optional parentheses and:  6.4. Output to Standard Output (Learning Perl)
- output and:  6.4. Output to Standard Output (Learning Perl)
 
- print statements,
  comma error in:  24.1.1. Universal Blunders (Programming Perl)
- printf( ):  5. Function Reference (Perl in a Nutshell)
- 
-  1.4.3. Discussion (Perl Cookbook)
- floating-point numbers, rounding:  2.2.2. Solution (Perl Cookbook)
- storing filehandles in variables:  7.5.3. Discussion (Perl Cookbook)
-  6.5. Formatted Output with printf (Learning Perl)
-  3.16. Conditional Operator (Programming Perl)
-  24.2.1. Time Efficiency (Programming Perl)
-  29.2.114. printf (Programming Perl)
-  29.2.162. sprintf (Programming Perl)
- filehandles and:  11.4. Using Filehandles (Learning Perl)
- using on tied filehandle:  14.4.1. Filehandle-Tying Methods (Programming Perl)
 
- print_header( ) (Mail::Internet):  16.2.5. Mail::Internet Reference (Perl in a Nutshell)
- printing
- 
  
  
  - arrays of hashes:  9.3.3. Access and Printing of an Array of Hashes (Programming Perl)
- data structures:  11.11.1. Problem (Perl Cookbook)
- date and time information:  3.8.1. Problem (Perl Cookbook)
- hashes:  5.6.1. Problem (Perl Cookbook)
- hashes of arrays:  9.2.3. Access and Printing of a Hash of Arrays (Programming Perl)
- lists with commas:  4.2.1. Problem (Perl Cookbook)
- multidimensional arrays:  9.1.3. Access and Printing (Programming Perl)
- 
    -  9.2. Hashes of Arrays (Programming Perl)
-  9.4. Hashes of Hashes (Programming Perl)
 
- multidimensional hashes:  9.4.3. Access and Printing of a Hash of Hashes (Programming Perl)
- 
    -  9.6.1. Composition, Access, and Printing of
More Elaborate Records (Programming Perl)
 
- nested data structures:  20.2.4. Display (Programming Perl)
- to multiple filehandles simultaneously:  7.8.1. Problem (Perl Cookbook)
- typeglob contents:  20.3.3. Debugger Options (Programming Perl)
 
- PrintRet option (debugger):  20.3.3. Debugger Options (Programming Perl)
- priority, process:  29.2.57. getpriority (Programming Perl)
- 
  -  29.2.147. setpriority (Programming Perl)
 
- privacy:  12.1. Brief Refresher on Object-Oriented Lingo (Programming Perl)
- 
  
  - Perl modules and:  11.2.1. Module Privacy and the Exporter (Programming Perl)
 
- private
- 
  
  - function to variable:  12.5.1. Problem (Perl Cookbook)
- methods:  13.. Methods (Perl Cookbook)
- module variables:  12.4.1. Problem (Perl Cookbook)
- subroutine variables:  10.2.1. Problem (Perl Cookbook)
 
- private methods, ignoring inheritance with:  12.5.5. Private Methods (Programming Perl)
- private objects, closures, using for:  12.7.5. Using Closures for Private Objects (Programming Perl)
- private variables (see also local variables)
- 
  -  4.2.7. Declarations and Scope (Perl in a Nutshell)
-  4.7.4. Private and Local Variables (Perl in a Nutshell)
-  29.2.99. my (Programming Perl)
 
- Proc handler (Expat):  13.3. Expat Handlers (Perl in a Nutshell)
- procedureal programming style:  5.10.3. Programmatic Patterns (Programming Perl)
- procedures:  1.2.2. Verbs (Programming Perl)
- process group:  29.2.55. getpgrp (Programming Perl)
- 
  -  29.2.146. setpgrp (Programming Perl)
 
- process groups:  16.1. Signals (Programming Perl)
- process ID (pid)
- 
  
  - getting process group from:  29.2.55. getpgrp (Programming Perl)
- returning:  29.2.56. getppid (Programming Perl)
- returning with fork:  29.2.40. fork (Programming Perl)
- waitpid function:  29.2.197. waitpid (Programming Perl)
 
- process management:  22.13. Win32::Pipe (Perl in a Nutshell)
- 
  -  22.14. Win32::Process (Perl in a Nutshell)
 
- processes:  16.. Introduction (Perl Cookbook)
- 
  
  - as filehandles:  14.5. Processes as Filehandles (Learning Perl)
- catching Ctrl-C:  16.18.1. Problem (Perl Cookbook)
- checking for existence:  16.1.1. Signaling Process Groups (Programming Perl)
- communicating between:  16.10.1. Problem (Perl Cookbook)
- controlling input/output:  16.8.1. Problem (Perl Cookbook)
- creating:  16.. Process Creation (Perl Cookbook)
- filtering output:  16.5.1. Problem (Perl Cookbook)
- fork function:  29.2.40. fork (Programming Perl)
- functions dealing with:  29.1. Perl Functions by Category (Programming Perl)
- gathering output:  16.1.1. Problem (Perl Cookbook)
- getting group for:  29.2.146. setpgrp (Programming Perl)
- groups:  7.25. Program: lockarea (Perl Cookbook)
- 
    -  16.14.3. Discussion (Perl Cookbook)
 
- ID (pid):  29.2.104. open (Programming Perl)
- imitating files with named pipes:  16.11.1. Problem (Perl Cookbook)
- interprocess communication:  16. Interprocess Communication (Programming Perl)
- 
    
    - between processes on same machine:  16. Interprocess Communication (Programming Perl)
- files:  16.2. Files (Programming Perl)
- on the Internet:  16. Interprocess Communication (Programming Perl)
- sockets:  16.5. Sockets (Programming Perl)
- System V IPC:  16.4. System V IPC (Programming Perl)
 
- killing:  29.2.80. kill (Programming Perl)
- large XML files, processing:  22.8.1. Problem (Perl Cookbook)
- managing:  14. Process Management (Learning Perl)
- multitasking environments, CPU access:  23.2. Handling Timing Glitches (Programming Perl)
- multitasking servers, writing:  17.14.1. Problem (Perl Cookbook)
- 
    
    - with POE:  17.15.1. Problem (Perl Cookbook)
 
- preprocessing input:  16.6.1. Problem (Perl Cookbook)
- priority, setting:  29.2.147. setpriority (Programming Perl)
- process model, threads:  17.1. The Process Model (Programming Perl)
- programs
- 
    
    - reading from and writing to:  16.4.1. Problem (Perl Cookbook)
- reading STDERR from:  16.7.1. Problem (Perl Cookbook)
- replacing:  16.3.1. Problem (Perl Cookbook)
- running multiple:  16.2.1. Problem (Perl Cookbook)
 
- recursively processing files in directories:  9.7.1. Problem (Perl Cookbook)
- returning priority of:  29.2.57. getpriority (Programming Perl)
- sharing variables among:  16.12.1. Problem (Perl Cookbook)
- signal handlers:  16.15.1. Problem (Perl Cookbook)
- 
    
    - overriding:  16.16.1. Problem (Perl Cookbook)
- writing:  16.17.1. Problem (Perl Cookbook)
 
- signaling process groups:  16.1.1. Signaling Process Groups (Programming Perl)
- signals:  16.. Signals (Perl Cookbook)
- 
    
    - blocking:  16.20.1. Problem (Perl Cookbook)
- listing available:  16.13.1. Problem (Perl Cookbook)
- sending:  16.14.1. Problem (Perl Cookbook)
- turning into errors:  16.22.1. Problem (Perl Cookbook)
 
- standard input, output, and error in:  1.4. Filehandles (Programming Perl)
- timing out operations:  16.21.1. Problem (Perl Cookbook)
- umask for:  29.2.186. umask (Programming Perl)
- variables for:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- waiting for:  29.2.196. wait (Programming Perl)
- XML processing instructions:  22.. Processing Instructions (Perl Cookbook)
- XSLT, processing:  22.7.1. Problem (Perl Cookbook)
- zombie:  16.1.2. Reaping Zombies (Programming Perl)
- zombies:  16.. Process Creation (Perl Cookbook)
- 
    
    - avoiding:  16.19.1. Problem (Perl Cookbook)
 
 
- $PROCESS_ID:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- $PROCESS_ID ($$) variable:  4.4.1. Global Special Variables (Perl in a Nutshell)
- processing shell commands:  19.1. Command Processing (Programming Perl)
- processor (see CPU)
- product_tokens( ) (HTTP::Daemon):  20.3.7. HTTP::Daemon (Perl in a Nutshell)
- profiler, Perl:  20.6. The Perl Profiler (Programming Perl)
- profiler, Perl (DProf):  6.5. The Perl Profiler (Perl in a Nutshell)
- profiling, Devel::DProf module:  32.1.13. Perl Language Extensions and Internals (Programming Perl)
- -prog option (perlcc):  3.4. The Perl Compiler (Perl in a Nutshell)
- program arguments, shell vs. Perl:  24.1.4. Shell Traps (Programming Perl)
- program flow control functions:  5.1. Perl Functions by Category (Perl in a Nutshell)
- program name
- 
  
  -  of perl executable:  28.2. Special Variables in Alphabetical Order (Programming Perl)
-  of perl script:  28.2. Special Variables in Alphabetical Order (Programming Perl)
 
- program structure:  4.1. Program Structure (Perl in a Nutshell)
- programming:  1.4. How Do I Make a Perl Program? (Learning Perl)
- 
  -  10.1.1. The else Clause with unless (Learning Perl)
- automatic match variables and:  9.5.2. The Automatic Match Variables (Learning Perl)
- text editor for:  1.4. How Do I Make a Perl Program? (Learning Perl)
 
- programming languages
- 
  
  - C, operators and:  10.9.2. The Ternary Operator, ?: (Learning Perl)
- converting to Perl:  B.25. Converting Other Languages to Perl (Learning Perl)
- low-level vs. high-level:  1.2.1. Why Didn't Larry Just Use Some Other Language? (Learning Perl)
- Perl modules for interfacing with or emulating:  22.1. The CPAN modules Directory (Programming Perl)
- structured:  10.8. Loop Controls (Learning Perl)
 
- programming, Perl:  24. Common Practices (Programming Perl)
- 
  
  - common mistakes by novices
- 
    
    - Perl traps, previous versions:  24.1.5. Previous Perl Traps (Programming Perl)
 
- common mistakes of novices:  24.1. Common Goofs for Novices (Programming Perl)
- efficiency:  24.2. Efficiency (Programming Perl)
- file-manipulating programs, writing portable:  25.3. Files and Filesystems (Programming Perl)
- fluent:  24.4. Fluent Perl (Programming Perl)
- portability:  25. Portable Perl (Programming Perl)
- program generation:  24.5. Program Generation (Programming Perl)
- 
    
    - generating Perl in other languages:  24.5.2. Generating Perl in Other Languages (Programming Perl)
 
- program generators
- 
    
    - other languages in Perl:  24.5.1. Generating Other Languages in Perl (Programming Perl)
- source filters:  24.5.3. Source Filters (Programming Perl)
 
- programming with style:  24.3. Programming with Style (Programming Perl)
 
- programming style, patterns:  5.10.3. Programmatic Patterns (Programming Perl)
- $PROGRAM_NAME:  28.2. Special Variables in Alphabetical Order (Programming Perl)
- $PROGRAM_NAME ($0) variable:  4.4.1. Global Special Variables (Perl in a Nutshell)
- programs:
   8. Introduction to Objects (Learning Perl Objects, References and Modules)
- (see also OOP)
- behaviors of:  6. Subroutine References (Learning Perl Objects, References and Modules)
- CGI (see CGI programming)
- command-line arguments, parsing:  15.1.1. Problem (Perl Cookbook)
- compile phase:  6.7. Closure Variables as Static Local Variables (Learning Perl Objects, References and Modules)
- controlling debugger from:  20.1. Using the Debugger (Programming Perl)
- controlling input/output of:  16.8.1. Problem (Perl Cookbook)
- controlling with Expect:  15.13.1. Problem (Perl Cookbook)
- core dump of:  29.2.29. dump (Programming Perl)
- example of in a nutshell:  1.5. A Whirlwind Tour of Perl (Learning Perl)
- executing:  29.2.174. system (Programming Perl)
- 
    - Glossary (Programming Perl)
 
- exit status and:  11.3. Fatal Errors with die (Learning Perl)
- exiting:  1.1. Getting Started (Programming Perl)
- 
    -  29.2.35. exit (Programming Perl)
 
- filtering output:  16.5.1. Problem (Perl Cookbook)
- gathering output from:  16.1.1. Problem (Perl Cookbook)
- last operator for exiting early:  10.8.1. The last Operator (Learning Perl)
- name of
- 
    
    - die function and:  11.3. Fatal Errors with die (Learning Perl)
- warn function and:  11.3.1. Warning Messages with warn (Learning Perl)
 
- object destruction and:  10. Object Destruction (Learning Perl Objects, References and Modules)
- one-liners: Glossary (Programming Perl)
- preprocessing input:  16.6.1. Problem (Perl Cookbook)
- reading from and writing to:  16.4.1. Problem (Perl Cookbook)
- reading STDERR from:  16.7.1. Problem (Perl Cookbook)
- replacing:  16.3.1. Problem (Perl Cookbook)
- run phase:  6.7. Closure Variables as Static Local Variables (Learning Perl Objects, References and Modules)
- running multiple:  16.2.1. Problem (Perl Cookbook)
- running over the Web:  1.4.3. But How Do I Compile Perl? (Learning Perl)
- sharing code:  2.1. The Cure for the Common Code (Learning Perl Objects, References and Modules)
- simulating telnet from:  18.6.1. Problem (Perl Cookbook)
- stepping through with debugger:  20.2.1. Stepping and Running (Programming Perl)
- testing if running interactively:  15.2.1. Problem (Perl Cookbook)
- whitespace:  3.3. Dereferencing the Array Reference (Learning Perl Objects, References and Modules)
- 
    -  4.7. Autovivification (Learning Perl Objects, References and Modules)
 
 
- programs,
  
  calculating and printing student grade averages: 1.3. An Average Example (Programming Perl)
- progressive matching:  6.5.3. Discussion (Perl Cookbook)
- 
  -  5.6.5. Where You Left Off: The \G Assertion (Programming Perl)
 
- projects, large, benefits of strict pragma in:  1.2.1.4. Simplicities (Programming Perl)
- properties:  12.4.2. Initializers (Programming Perl)
- 
  
  - case, Unicode:  15.2. Effects of Character Semantics (Programming Perl)
- Unicode:  5.4. Character Classes (Programming Perl)
- Unicode database of:  15.2. Effects of Character Semantics (Programming Perl)
 
- properties, instances and:  9.1. A Horse Is a Horse, of Course of Course—or Is It? (Learning Perl Objects, References and Modules)
- Proto option (IO::Socket::INET):  15.2.4. IO::Socket::INET Reference (Perl in a Nutshell)
- protocol( )
- 
  
  - Frame widget module:  21.18.1. Toplevel Methods (Perl in a Nutshell)
- HTTP::Message module:  20.3.8. HTTP::Message (Perl in a Nutshell)
- IO::Socket module:  15.2.3. IO::Socket Methods (Perl in a Nutshell)
 
- protocols
- 
  
  - Internet:  18.. Introduction (Perl Cookbook)
- socket:  17.. Introduction (Perl Cookbook)
 
- protocols, name/number translations:  29.2.58. getprotobyname (Programming Perl)
- protocols_allowed( ) (LWP::UserAgent):  20.2.3. LWP::UserAgent (Perl in a Nutshell)
- rotocols_forbidden( ) (LWP::UserAgent):  20.2.3. LWP::UserAgent (Perl in a Nutshell)
- proto_ge( ) (HTTP::Daemon::ClientConn):  20.3.7.1. HTTP::Daemon::ClientConn methods (Perl in a Nutshell)
- prototype( ):  5. Function Reference (Perl in a Nutshell)
- prototypes:  10.11.1. Problem (Perl Cookbook)
- 
  -  13.. Methods (Perl Cookbook)
-  4.11.1. Omitting the Ampersand (Learning Perl)
-  6.4. Prototypes (Programming Perl)
- Glossary (Programming Perl)
- & (ampersand), omitting from subroutine names:  6.4. Prototypes (Programming Perl)
- built-in functions, emulating:  6.4. Prototypes (Programming Perl)
- careful use of:  6.4.2. Care with Prototypes (Programming Perl)
- closures, giving to:  8.3.7.1. Closures as function templates (Programming Perl)
- implicit pass-by-reference in:  8.1. What Is a Reference? (Programming Perl)
- inlining constant functions:  6.4.1. Inlining Constant Functions (Programming Perl)
 
- prototypes for subroutines:  4.7. Subroutines (Perl in a Nutshell)
- 
  -  4.7.5. Prototypes (Perl in a Nutshell)
 
- prototyping:  6.4. Prototypes (Programming Perl)
- proxy( )
- 
  
  - LWP::UserAgent:  20.2.3. LWP::UserAgent (Perl in a Nutshell)
- SOAP::Lite:  14.2. SOAP::Lite (Perl in a Nutshell)
 
- proxy, submitting forms through:  20.2.3. Discussion (Perl Cookbook)
- pseudo-operators, overloading and:  13.3. Overloadable Operators (Programming Perl)
- pseudocommands, piping:  16.3.2. Talking to Yourself (Programming Perl)
- pseudohashes:  8.3.5. Pseudohashes (Programming Perl)
- 
  
  - implementing classes with:  29.2.99. my (Programming Perl)
- 
    
    - inheritance and:  12.7.1. Field Declarations with use fields (Programming Perl)
 
- simulating with overload function:  13.3. Overloadable Operators (Programming Perl)
- use fields pragma, using with:  12.7.1. Field Declarations with use fields (Programming Perl)
 
- pseudoliterals (see input operators)
- psgrep program:  1.24. Program: psgrep (Perl Cookbook)
- public methods:  13.. Methods (Perl Cookbook)
- pumpkins and pumpkings: Glossary (Programming Perl)
- punctuation characters,
  
and word boundary matching:  5.6.3. Boundaries: The \b and \B Assertions (Programming Perl)
- punctuation variables, English module, handling with:  32.1.13. Perl Language Extensions and Internals (Programming Perl)
- push( ):  5. Function Reference (Perl in a Nutshell)
-  4.10.2. Solution (Perl Cookbook)
-  11.2.2. Solution (Perl Cookbook)
- circular lists:  4.17.2. Solution (Perl Cookbook)
- Tie::IxHash module and:  5.7.3. Discussion (Perl Cookbook)
-  2.5.1. Extending @INC (Learning Perl Objects, References and Modules)
-  9. Data Structures (Programming Perl)
-  29.2.116. push (Programming Perl)
- pop function:  2.3. Built-in Data Types (Programming Perl)
 
- push operator:  3.4.1. The pop and push Operators (Learning Perl)
- push-pop (PP) codes:  18.3. Executing Your Code (Programming Perl)
- push_content( ) (HTML::Parser):  20.4.3. HTML::Element (Perl in a Nutshell)
- init_header( ) (HTTP::Headers):  20.3.3. HTTP::Headers (Perl in a Nutshell)
- put( )
- 
  
  - DB_File module:  8.52. DB_File (Perl in a Nutshell)
- LWP::UserAgent:  20.2.3. LWP::UserAgent (Perl in a Nutshell)
- Net::FTP:  18.2. Net::FTP (Perl in a Nutshell)
 
- PUT requests (CGI):  20.3.1. HTTP::Request (Perl in a Nutshell)
- put_unique( ) (Net::FTP):  18.2. Net::FTP (Perl in a Nutshell)
- PV (internal string value):  21.2. Internal Data Types (Programming Perl)
- pwd command (Unix):  24.2.1. Time Efficiency (Programming Perl)
- pwd( ) (Net::FTP):  18.2. Net::FTP (Perl in a Nutshell)
- Pwd( ) (Win32::Internet):  22.7.2. FTP Functions (Perl in a Nutshell)
- Python:  2.2. Molecules (Programming Perl)
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