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Man Pages


Manual Reference Pages  -  PERLTOC (1)

.ds Aq ’

NAME

perltoc - perl documentation table of contents

CONTENTS

DESCRIPTION

This page provides a brief table of contents for the rest of the Perl documentation set. It is meant to be scanned quickly or grepped through to locate the proper section you’re looking for.

BASIC DOCUMENTATION

    perl - The Perl 5 language interpreter

SYNOPSIS
GETTING HELP
Overview
Tutorials
Reference Manual
Internals and C Language Interface
Miscellaneous
Language-Specific
Platform-Specific
Stubs for Deleted Documents
DESCRIPTION
AVAILABILITY
ENVIRONMENT
AUTHOR
FILES
SEE ALSO
DIAGNOSTICS
BUGS
NOTES

    perlintro — a brief introduction and overview of Perl

DESCRIPTION
What is Perl?
Running Perl programs
Safety net
Basic syntax overview
Perl variable types Scalars, Arrays, Hashes
Variable scoping
Conditional and looping constructs if, while, for, foreach
Builtin operators and functions Arithmetic, Numeric comparison, String comparison, Boolean logic, Miscellaneous
Files and I/O
Regular expressions Simple matching, Simple substitution, More complex regular expressions, Parentheses for capturing, Other regexp features
Writing subroutines
OO Perl
Using Perl modules
AUTHOR

    perlrun - how to execute the Perl interpreter

SYNOPSIS
DESCRIPTION
#! and quoting on non-Unix systems OS/2, MS-DOS, Win95/NT, VMS
Location of Perl
Command Switches <B>-0B>[octal/hexadecimal] , <B>-aB> , <B>-C [B>number/list<B>]B> , <B>-cB> , <B>-dB> , <B>-dtB>, <B>-d:B>MOD[=bar,baz] , <B>-dt:B>MOD[=bar,baz], <B>-DB>letters , <B>-DB>number, <B>-eB> commandline , <B>-EB> commandline , <B>-fB>
, <B>-FB>pattern , <B>-hB> , <B>-iB>[extension] , <B>-IB>directory , <B>-lB>[octnum] , <B>-mB>[<B>-B>]module , <B>-MB>[<B>-B>]module, <B>-MB>[<B>-B>]’module ...’, <B>-[mM]B>[<B>-B>]module=arg[,arg]..., <B>-nB> , <B>-pB> , <B>-sB> , <B>-SB> , <B>-tB> , <B>-TB> , <B>-uB> , <B>-UB> , <B>-vB> , <B>-VB> , <B>-V:B>configvar, <B>-wB> , <B>-WB> , <B>-XB> , <B>-xB> , <B>-xB>directory
ENVIRONMENT HOME , LOGDIR , PATH , PERL5LIB , PERL5OPT , PERLIO , :bytes , :crlf , :mmap , :perlio , :pop , :raw , :stdio , :unix , :utf8 , :win32 , PERLIO_DEBUG , PERLLIB , PERL5DB , PERL5DB_THREADED , PERL5SHELL (specific to the Win32 port) , PERL_ALLOW_NON_IFS_LSP (specific to the Win32 port) , PERL_DEBUG_MSTATS , PERL_DESTRUCT_LEVEL , PERL_DL_NONLAZY , PERL_ENCODING , PERL_HASH_SEED , PERL_PERTURB_KEYS , PERL_HASH_SEED_DEBUG , PERL_MEM_LOG , PERL_ROOT (specific to the VMS port) , PERL_SIGNALS , PERL_UNICODE , SYS$LOGIN (specific to the VMS port)

    perlreftut - Mark’s very short tutorial about references

DESCRIPTION
Who Needs Complicated Data Structures?
The Solution
Syntax
Making References
Using References
An Example
Arrow Rule
Solution
The Rest
Summary
Credits
Distribution Conditions

    perldsc - Perl Data Structures Cookbook

DESCRIPTION arrays of arrays, hashes of arrays, arrays of hashes, hashes of hashes, more elaborate constructs
REFERENCES
COMMON MISTAKES
CAVEAT ON PRECEDENCE
WHY YOU SHOULD ALWAYS use strict
DEBUGGING
CODE EXAMPLES
ARRAYS OF ARRAYS
Declaration of an ARRAY OF ARRAYS
Generation of an ARRAY OF ARRAYS
Access and Printing of an ARRAY OF ARRAYS
HASHES OF ARRAYS
Declaration of a HASH OF ARRAYS
Generation of a HASH OF ARRAYS
Access and Printing of a HASH OF ARRAYS
ARRAYS OF HASHES
Declaration of an ARRAY OF HASHES
Generation of an ARRAY OF HASHES
Access and Printing of an ARRAY OF HASHES
HASHES OF HASHES
Declaration of a HASH OF HASHES
Generation of a HASH OF HASHES
Access and Printing of a HASH OF HASHES
MORE ELABORATE RECORDS
Declaration of MORE ELABORATE RECORDS
Declaration of a HASH OF COMPLEX RECORDS
Generation of a HASH OF COMPLEX RECORDS
Database Ties
SEE ALSO
AUTHOR

    perllol - Manipulating Arrays of Arrays in Perl

DESCRIPTION
Declaration and Access of Arrays of Arrays
Growing Your Own
Access and Printing
Slices
SEE ALSO
AUTHOR

    perlrequick - Perl regular expressions quick start

DESCRIPTION
The Guide
Simple word matching
Using character classes
Matching this or that
Grouping things and hierarchical matching
Extracting matches
Matching repetitions
More matching
Search and replace
The split operator
use re strict
BUGS
SEE ALSO
AUTHOR AND COPYRIGHT
Acknowledgments

    perlretut - Perl regular expressions tutorial

DESCRIPTION
Part 1: The basics
Simple word matching
Using character classes
Matching this or that
Grouping things and hierarchical matching 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Extracting matches
Backreferences
Relative backreferences
Named backreferences
Alternative capture group numbering
Position information
Non-capturing groupings
Matching repetitions 0, 1, 2, 3, 4, 5, 6
Possessive quantifiers
Building a regexp
Using regular expressions in Perl
Part 2: Power tools
More on characters, strings, and character classes
Compiling and saving regular expressions
Composing regular expressions at runtime
Embedding comments and modifiers in a regular expression
Looking ahead and looking behind
Using independent subexpressions to prevent backtracking
Conditional expressions
Defining named patterns
Recursive patterns
A bit of magic: executing Perl code in a regular expression
Backtracking control verbs
Pragmas and debugging
BUGS
SEE ALSO
AUTHOR AND COPYRIGHT
Acknowledgments

    perlootut - Object-Oriented Programming in Perl Tutorial

DATE
DESCRIPTION
OBJECT-ORIENTED FUNDAMENTALS
Object
Class
Methods
Attributes
Polymorphism
Inheritance
Encapsulation
Composition
Roles
When to Use OO
PERL OO SYSTEMS
Moose Declarative sugar, Roles built-in, A miniature type system, Full introspection and manipulation, Self-hosted and extensible, Rich ecosystem, Many more features
Class::Accessor
Class::Tiny
Role::Tiny
OO System Summary Moose, Class::Accessor, Class::Tiny, Role::Tiny
Other OO Systems
CONCLUSION

    perlperf - Perl Performance and Optimization Techniques

DESCRIPTION
OVERVIEW
ONE STEP SIDEWAYS
ONE STEP FORWARD
ANOTHER STEP SIDEWAYS
GENERAL GUIDELINES
BENCHMARKS
Assigning and Dereferencing Variables.
Search and replace or tr
PROFILING TOOLS
Devel::DProf
Devel::Profiler
Devel::SmallProf
Devel::FastProf
Devel::NYTProf
SORTING Elapsed Real Time, User CPU Time, System CPU Time
LOGGING
Logging if DEBUG (constant)
POSTSCRIPT
SEE ALSO
PERLDOCS
MAN PAGES
MODULES
URLS
AUTHOR

    perlstyle - Perl style guide

DESCRIPTION

    perlcheat - Perl 5 Cheat Sheet

DESCRIPTION
The sheet
ACKNOWLEDGEMENTS
AUTHOR
SEE ALSO

    perltrap - Perl traps for the unwary

DESCRIPTION
Awk Traps
C/C++ Traps
JavaScript Traps
Sed Traps
Shell Traps
Perl Traps

    perldebtut - Perl debugging tutorial

DESCRIPTION
use strict
Looking at data and -w and v
help
Stepping through code
Placeholder for a, w, t, T
REGULAR EXPRESSIONS
OUTPUT TIPS
CGI
GUIs
SUMMARY
SEE ALSO
AUTHOR
CONTRIBUTORS

    perlfaq - frequently asked questions about Perl

VERSION
DESCRIPTION
Where to find the perlfaq
How to use the perlfaq
How to contribute to the perlfaq
What if my question isn’t answered in the FAQ?
TABLE OF CONTENTS perlfaq1 - General Questions About Perl, perlfaq2 - Obtaining and Learning about Perl, perlfaq3 - Programming Tools, perlfaq4 - Data Manipulation, perlfaq5 - Files and Formats, perlfaq6 - Regular Expressions, perlfaq7 - General Perl Language Issues, perlfaq8 - System Interaction, perlfaq9 - Web, Email and Networking
THE QUESTIONS
perlfaq1: General Questions About Perl
perlfaq2: Obtaining and Learning about Perl
perlfaq3: Programming Tools
perlfaq4: Data Manipulation
perlfaq5: Files and Formats
perlfaq6: Regular Expressions
perlfaq7: General Perl Language Issues
perlfaq8: System Interaction
perlfaq9: Web, Email and Networking
CREDITS
AUTHOR AND COPYRIGHT

    perlfaq1 - General Questions About Perl

VERSION
DESCRIPTION
What is Perl?
Who supports Perl? Who develops it? Why is it free?
Which version of Perl should I use?
What are Perl 4, Perl 5, or Perl 6?
What is Perl 6?
How stable is Perl?
How often are new versions of Perl released?
Is Perl difficult to learn?
How does Perl compare with other languages like Java, Python, REXX, Scheme, or Tcl?
Can I do [task] in Perl?
When shouldn’t I program in Perl?
What’s the difference between ‘‘perl’’ and ‘‘Perl’’?
What is a JAPH?
How can I convince others to use Perl? <http://www.perl.org/about.html>, <http://perltraining.com.au/whyperl.html>
AUTHOR AND COPYRIGHT

    perlfaq2 - Obtaining and Learning about Perl

VERSION
DESCRIPTION
What machines support Perl? Where do I get it?
How can I get a binary version of Perl?
I don’t have a C compiler. How can I build my own Perl interpreter?
I copied the Perl binary from one machine to another, but scripts don’t work.
I grabbed the sources and tried to compile but gdbm/dynamic loading/malloc/linking/... failed. How do I make it work?
What modules and extensions are available for Perl? What is CPAN?
Where can I get information on Perl? <http://www.perl.org/>, <http://perldoc.perl.org/>, <http://learn.perl.org/>
What is perl.com? Perl Mongers? pm.org? perl.org? cpan.org? <http://www.perl.org/>, <http://learn.perl.org/>, <http://jobs.perl.org/>, <http://lists.perl.org/>
Where can I post questions?
Perl Books
Which magazines have Perl content?
Which Perl blogs should I read?
What mailing lists are there for Perl?
Where can I buy a commercial version of Perl?
Where do I send bug reports?
AUTHOR AND COPYRIGHT

    perlfaq3 - Programming Tools

VERSION
DESCRIPTION
How do I do (anything)? Basics, perldata - Perl data types, perlvar - Perl pre-defined variables, perlsyn - Perl syntax, perlop - Perl operators and precedence, perlsub - Perl subroutines, Execution, perlrun - how to execute the Perl interpreter, perldebug - Perl debugging, Functions, perlfunc - Perl builtin functions, Objects, perlref - Perl references and nested data structures, perlmod - Perl modules (packages and symbol tables), perlobj - Perl objects, perltie - how to hide an object class in a simple variable, Data Structures, perlref - Perl references and nested data structures, perllol - Manipulating arrays of arrays in Perl, perldsc - Perl Data Structures Cookbook, Modules, perlmod - Perl modules (packages and symbol tables), perlmodlib - constructing new Perl modules and finding existing ones, Regexes, perlre - Perl regular expressions, perlfunc - Perl builtin functions>, perlop - Perl operators and precedence, perllocale - Perl locale handling (internationalization and localization), Moving to perl5, perltrap - Perl traps for the unwary, perl, Linking with C, perlxstut - Tutorial for writing XSUBs, perlxs - XS language reference manual, perlcall - Perl calling conventions from C, perlguts - Introduction to the Perl API, perlembed - how to embed perl in your C program, Various
How can I use Perl interactively?
How do I find which modules are installed on my system?
How do I debug my Perl programs?
How do I profile my Perl programs?
How do I cross-reference my Perl programs?
Is there a pretty-printer (formatter) for Perl?
Is there an IDE or Windows Perl Editor? Eclipse, Enginsite, Kephra, Komodo, Notepad++, Open Perl IDE, OptiPerl, Padre, PerlBuilder, visiPerl+, Visual Perl, Zeus, GNU Emacs, MicroEMACS, XEmacs, Jed, Vim, Vile, MultiEdit, SlickEdit, ConTEXT, bash, zsh, BBEdit and TextWrangler
Where can I get Perl macros for vi?
Where can I get perl-mode or cperl-mode for emacs?
How can I use curses with Perl?
How can I write a GUI (X, Tk, Gtk, etc.) in Perl? Tk, Wx, Gtk and Gtk2, Win32::GUI, CamelBones, Qt, Athena
How can I make my Perl program run faster?
How can I make my Perl program take less memory? Don’t slurp!, Use map and grep selectively, Avoid unnecessary quotes and stringification, Pass by reference, Tie large variables to disk
Is it safe to return a reference to local or lexical data?
How can I free an array or hash so my program shrinks?
How can I make my CGI script more efficient?
How can I hide the source for my Perl program?
How can I compile my Perl program into byte code or C?
How can I get #!perl to work on [MS-DOS,NT,...]?
Can I write useful Perl programs on the command line?
Why don’t Perl one-liners work on my DOS/Mac/VMS system?
Where can I learn about CGI or Web programming in Perl?
Where can I learn about object-oriented Perl programming?
Where can I learn about linking C with Perl?
I’ve read perlembed, perlguts, etc., but I can’t embed perl in my C program; what am I doing wrong?
When I tried to run my script, I got this message. What does it mean?
What’s MakeMaker?
AUTHOR AND COPYRIGHT

    perlfaq4 - Data Manipulation

VERSION
DESCRIPTION
Data: Numbers
Why am I getting long decimals (eg, 19.9499999999999) instead of the numbers I should be getting (eg, 19.95)?
Why is int() broken?
Why isn’t my octal data interpreted correctly?
Does Perl have a round() function? What about ceil() and floor()? Trig functions?
How do I convert between numeric representations/bases/radixes? How do I convert hexadecimal into decimal, How do I convert from decimal to hexadecimal, How do I convert from octal to decimal, How do I convert from decimal to octal, How do I convert from binary to decimal, How do I convert from decimal to binary
Why doesn’t & work the way I want it to?
How do I multiply matrices?
How do I perform an operation on a series of integers?
How can I output Roman numerals?
Why aren’t my random numbers random?
How do I get a random number between X and Y?
Data: Dates
How do I find the day or week of the year?
How do I find the current century or millennium?
How can I compare two dates and find the difference?
How can I take a string and turn it into epoch seconds?
How can I find the Julian Day?
How do I find yesterday’s date?
Does Perl have a Year 2000 or 2038 problem? Is Perl Y2K compliant?
Data: Strings
How do I validate input?
How do I unescape a string?
How do I remove consecutive pairs of characters?
How do I expand function calls in a string?
How do I find matching/nesting anything?
How do I reverse a string?
How do I expand tabs in a string?
How do I reformat a paragraph?
How can I access or change N characters of a string?
How do I change the Nth occurrence of something?
How can I count the number of occurrences of a substring within a string?
How do I capitalize all the words on one line?
How can I split a [character]-delimited string except when inside [character]?
How do I strip blank space from the beginning/end of a string?
How do I pad a string with blanks or pad a number with zeroes?
How do I extract selected columns from a string?
How do I find the soundex value of a string?
How can I expand variables in text strings?
What’s wrong with always quoting ‘‘$vars’’?
Why don’t my <<HERE documents work? There must be no space after the << part, There (probably) should be a semicolon at the end of the opening token, You can’t (easily) have any space in front of the tag, There needs to be at least a line separator after the end token
Data: Arrays
What is the difference between a list and an array?
What is the difference between $array[1] and @array[1]?
How can I remove duplicate elements from a list or array?
How can I tell whether a certain element is contained in a list or array?
How do I compute the difference of two arrays? How do I compute the intersection of two arrays?
How do I test whether two arrays or hashes are equal?
How do I find the first array element for which a condition is true?
How do I handle linked lists?
How do I handle circular lists?
How do I shuffle an array randomly?
How do I process/modify each element of an array?
How do I select a random element from an array?
How do I permute N elements of a list?
How do I sort an array by (anything)?
How do I manipulate arrays of bits?
Why does defined() return true on empty arrays and hashes?
Data: Hashes (Associative Arrays)
How do I process an entire hash?
How do I merge two hashes?
What happens if I add or remove keys from a hash while iterating over it?
How do I look up a hash element by value?
How can I know how many entries are in a hash?
How do I sort a hash (optionally by value instead of key)?
How can I always keep my hash sorted?
What’s the difference between ‘‘delete’’ and ‘‘undef’’ with hashes?
Why don’t my tied hashes make the defined/exists distinction?
How do I reset an each() operation part-way through?
How can I get the unique keys from two hashes?
How can I store a multidimensional array in a DBM file?
How can I make my hash remember the order I put elements into it?
Why does passing a subroutine an undefined element in a hash create it?
How can I make the Perl equivalent of a C structure/C++ class/hash or array of hashes or arrays?
How can I use a reference as a hash key?
How can I check if a key exists in a multilevel hash?
How can I prevent addition of unwanted keys into a hash?
Data: Misc
How do I handle binary data correctly?
How do I determine whether a scalar is a number/whole/integer/float?
How do I keep persistent data across program calls?
How do I print out or copy a recursive data structure?
How do I define methods for every class/object?
How do I verify a credit card checksum?
How do I pack arrays of doubles or floats for XS code?
AUTHOR AND COPYRIGHT

    perlfaq5 - Files and Formats

VERSION
DESCRIPTION
How do I flush/unbuffer an output filehandle? Why must I do this?
How do I change, delete, or insert a line in a file, or append to the beginning of a file?
How do I count the number of lines in a file?
How do I delete the last N lines from a file?
How can I use Perl’s -i option from within a program?
How can I copy a file?
How do I make a temporary file name?
How can I manipulate fixed-record-length files?
How can I make a filehandle local to a subroutine? How do I pass filehandles between subroutines? How do I make an array of filehandles?
How can I use a filehandle indirectly?
How can I set up a footer format to be used with write()?
How can I write() into a string?
How can I open a filehandle to a string?
How can I output my numbers with commas added?
How can I translate tildes (~) in a filename?
How come when I open a file read-write it wipes it out?
Why do I sometimes get an ‘‘Argument list too long’’ when I use <*>?
How can I open a file with a leading ‘‘>’’ or trailing blanks?
How can I reliably rename a file?
How can I lock a file?
Why can’t I just open(FH, ‘‘>file.lock’’)?
I still don’t get locking. I just want to increment the number in the file. How can I do this?
All I want to do is append a small amount of text to the end of a file. Do I still have to use locking?
How do I randomly update a binary file?
How do I get a file’s timestamp in perl?
How do I set a file’s timestamp in perl?
How do I print to more than one file at once?
How can I read in an entire file all at once?
How can I read in a file by paragraphs?
How can I read a single character from a file? From the keyboard?
How can I tell whether there’s a character waiting on a filehandle?
How do I do a tail -f in perl?
How do I dup() a filehandle in Perl?
How do I close a file descriptor by number?
Why can’t I use ‘‘C:\temp\foo’’ in DOS paths? Why doesn’t ‘C:\temp\foo.exe‘ work?
Why doesn’t glob(‘‘*.*’’) get all the files?
Why does Perl let me delete read-only files? Why does -i clobber protected files? Isn’t this a bug in Perl?
How do I select a random line from a file?
Why do I get weird spaces when I print an array of lines?
How do I traverse a directory tree?
How do I delete a directory tree?
How do I copy an entire directory?
AUTHOR AND COPYRIGHT

    perlfaq6 - Regular Expressions

VERSION
DESCRIPTION
How can I hope to use regular expressions without creating illegible and unmaintainable code? Comments Outside the Regex, Comments Inside the Regex, Different Delimiters
I’m having trouble matching over more than one line. What’s wrong?
How can I pull out lines between two patterns that are themselves on different lines?
How do I match XML, HTML, or other nasty, ugly things with a regex?
I put a regular expression into $/ but it didn’t work. What’s wrong?
How do I substitute case-insensitively on the LHS while preserving case on the RHS?
How can I make \w match national character sets?
How can I match a locale-smart version of /[a-zA-Z]/?
How can I quote a variable to use in a regex?
What is /o really for?
How do I use a regular expression to strip C-style comments from a file?
Can I use Perl regular expressions to match balanced text?
What does it mean that regexes are greedy? How can I get around it?
How do I process each word on each line?
How can I print out a word-frequency or line-frequency summary?
How can I do approximate matching?
How do I efficiently match many regular expressions at once?
Why don’t word-boundary searches with \b work for me?
Why does using $&, $‘, or $’ slow my program down?
What good is \G in a regular expression?
Are Perl regexes DFAs or NFAs? Are they POSIX compliant?
What’s wrong with using grep in a void context?
How can I match strings with multibyte characters?
How do I match a regular expression that’s in a variable?
AUTHOR AND COPYRIGHT

    perlfaq7 - General Perl Language Issues

VERSION
DESCRIPTION
Can I get a BNF/yacc/RE for the Perl language?
What are all these $@%&* punctuation signs, and how do I know when to use them?
Do I always/never have to quote my strings or use semicolons and commas?
How do I skip some return values?
How do I temporarily block warnings?
What’s an extension?
Why do Perl operators have different precedence than C operators?
How do I declare/create a structure?
How do I create a module?
How do I adopt or take over a module already on CPAN?
How do I create a class?
How can I tell if a variable is tainted?
What’s a closure?
What is variable suicide and how can I prevent it?
How can I pass/return a {Function, FileHandle, Array, Hash, Method, Regex}? Passing Variables and Functions, Passing Filehandles, Passing Regexes, Passing Methods
How do I create a static variable?
What’s the difference between dynamic and lexical (static) scoping? Between local() and my()?
How can I access a dynamic variable while a similarly named lexical is in scope?
What’s the difference between deep and shallow binding?
Why doesn’t ‘‘my($foo) = <$fh>;’’ work right?
How do I redefine a builtin function, operator, or method?
What’s the difference between calling a function as &foo and foo()?
How do I create a switch or case statement?
How can I catch accesses to undefined variables, functions, or methods?
Why can’t a method included in this same file be found?
How can I find out my current or calling package?
How can I comment out a large block of Perl code?
How do I clear a package?
How can I use a variable as a variable name?
What does ‘‘bad interpreter’’ mean?
Do I need to recompile XS modules when there is a change in the C library?
AUTHOR AND COPYRIGHT

    perlfaq8 - System Interaction

VERSION
DESCRIPTION
How do I find out which operating system I’m running under?
How come exec() doesn’t return?
How do I do fancy stuff with the keyboard/screen/mouse? Keyboard, Screen, Mouse
How do I print something out in color?
How do I read just one key without waiting for a return key?
How do I check whether input is ready on the keyboard?
How do I clear the screen?
How do I get the screen size?
How do I ask the user for a password?
How do I read and write the serial port? lockfiles, open mode, end of line, flushing output, non-blocking input
How do I decode encrypted password files?
How do I start a process in the background? STDIN, STDOUT, and STDERR are shared, Signals, Zombies
How do I trap control characters/signals?
How do I modify the shadow password file on a Unix system?
How do I set the time and date?
How can I sleep() or alarm() for under a second?
How can I measure time under a second?
How can I do an atexit() or setjmp()/longjmp()? (Exception handling)
Why doesn’t my sockets program work under System V (Solaris)? What does the error message ‘‘Protocol not supported’’ mean?
How can I call my system’s unique C functions from Perl?
Where do I get the include files to do ioctl() or syscall()?
Why do setuid perl scripts complain about kernel problems?
How can I open a pipe both to and from a command?
Why can’t I get the output of a command with system()?
How can I capture STDERR from an external command?
Why doesn’t open() return an error when a pipe open fails?
What’s wrong with using backticks in a void context?
How can I call backticks without shell processing?
Why can’t my script read from STDIN after I gave it EOF (^D on Unix, ^Z on MS-DOS)?
How can I convert my shell script to perl?
Can I use perl to run a telnet or ftp session?
How can I write expect in Perl?
Is there a way to hide perl’s command line from programs such as ‘‘ps’’?
I {changed directory, modified my environment} in a perl script. How come the change disappeared when I exited the script? How do I get my changes to be visible? Unix
How do I close a process’s filehandle without waiting for it to complete?
How do I fork a daemon process?
How do I find out if I’m running interactively or not?
How do I timeout a slow event?
How do I set CPU limits?
How do I avoid zombies on a Unix system?
How do I use an SQL database?
How do I make a system() exit on control-C?
How do I open a file without blocking?
How do I tell the difference between errors from the shell and perl?
How do I install a module from CPAN?
What’s the difference between require and use?
How do I keep my own module/library directory?
How do I add the directory my program lives in to the module/library search path?
How do I add a directory to my include path (@INC) at runtime? the PERLLIB environment variable, the PERL5LIB environment variable, the perl -Idir command line flag, the lib pragma:, the local::lib module:
Where are modules installed?
What is socket.ph and where do I get it?
AUTHOR AND COPYRIGHT

    perlfaq9 - Web, Email and Networking

VERSION
DESCRIPTION
Should I use a web framework?
Which web framework should I use? Catalyst, Dancer, Mojolicious, Web::Simple
What is Plack and PSGI?
How do I remove HTML from a string?
How do I extract URLs?
How do I fetch an HTML file?
How do I automate an HTML form submission?
How do I decode or create those %-encodings on the web?
How do I redirect to another page?
How do I put a password on my web pages?
How do I make sure users can’t enter values into a form that causes my CGI script to do bad things?
How do I parse a mail header?
How do I check a valid mail address?
How do I decode a MIME/BASE64 string?
How do I find the user’s mail address?
How do I send email? Email::Sender::Transport::Sendmail, Email::Sender::Transport::SMTP, Email::Sender::Transport::SMTP::TLS
How do I use MIME to make an attachment to a mail message?
How do I read email?
How do I find out my hostname, domainname, or IP address?
How do I fetch/put an (S)FTP file?
How can I do RPC in Perl?
AUTHOR AND COPYRIGHT

    perlsyn - Perl syntax

DESCRIPTION
Declarations
Comments
Simple Statements
Truth and Falsehood
Statement Modifiers
Compound Statements
Loop Control
For Loops
Foreach Loops
Basic BLOCKs
Switch Statements
Goto
The Ellipsis Statement
PODs: Embedded Documentation
Plain Old Comments (Not!)
Experimental Details on given and when 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

    perldata - Perl data types

DESCRIPTION
Variable names
Identifier parsing
Context
Scalar values
Scalar value constructors
List value constructors
Subscripts
Multi-dimensional array emulation
Slices
Typeglobs and Filehandles
SEE ALSO

    perlop - Perl operators and precedence

DESCRIPTION
Operator Precedence and Associativity
Terms and List Operators (Leftward)
The Arrow Operator
Auto-increment and Auto-decrement
Exponentiation
Symbolic Unary Operators
Binding Operators
Multiplicative Operators
Additive Operators
Shift Operators
Named Unary Operators
Relational Operators
Equality Operators
Smartmatch Operator 1. Empty hashes or arrays match, 2. That is, each element smartmatches the element of the same index in the other array.[3], 3. If a circular reference is found, fall back to referential equality, 4. Either an actual number, or a string that looks like one
Bitwise And
Bitwise Or and Exclusive Or
C-style Logical And
C-style Logical Or
Logical Defined-Or
Range Operators
Conditional Operator
Assignment Operators
Comma Operator
List Operators (Rightward)
Logical Not
Logical And
Logical or and Exclusive Or
C Operators Missing From Perl unary &, unary *, (TYPE)
Quote and Quote-like Operators [1], [2], [3], [4], [5], [6], [7], [8]
Regexp Quote-Like Operators qr/STRING/msixpodualn , m/PATTERN/msixpodualngc

, /PATTERN/msixpodualngc, The empty pattern //, Matching in list context, \G assertion, m?PATTERN?msixpodualngc
, ?PATTERN?msixpodualngc, s/PATTERN/REPLACEMENT/msixpodualngcer
Quote-Like Operators q/STRING/ , STRING, qq/STRING/ , "STRING", qx/STRING/ , `STRING`, qw/STRING/ , tr/SEARCHLIST/REPLACEMENTLIST/cdsr
, y/SEARCHLIST/REPLACEMENTLIST/cdsr, <<EOF , Double Quotes, Single Quotes, Backticks
Gory details of parsing quoted constructs Finding the end, Interpolation , <<EOF, m, the pattern of s, , q//, tr, y, the replacement of s, tr///, y///, "", ``, qq//, qx//, <file*glob>, <<"EOF", the replacement of s///, RE in ?RE?, /RE/, m/RE/, s/RE/foo/,, parsing regular expressions , Optimization of regular expressions
I/O Operators
Constant Folding
No-ops
Bitwise String Operators
Integer Arithmetic
Floating-point Arithmetic
Bigger Numbers

    perlsub - Perl subroutines

SYNOPSIS
DESCRIPTION documented later in this document, documented in perlmod, documented in perlobj, documented in perltie, documented in PerlIO::via, documented in perlfunc, documented in UNIVERSAL, documented in perldebguts, undocumented, used internally by the overload feature
Signatures
Private Variables via my()
Persistent Private Variables
Temporary Values via local()
Lvalue subroutines
Lexical Subroutines
Passing Symbol Table Entries (typeglobs)
When to Still Use local()
Pass by Reference
Prototypes
Constant Functions
Overriding Built-in Functions
Autoloading
Subroutine Attributes
SEE ALSO

    perlfunc - Perl builtin functions

DESCRIPTION
Perl Functions by Category Functions for SCALARs or strings , Regular expressions and pattern matching , Numeric functions , Functions for real @ARRAYs , Functions for list data , Functions for real %HASHes , Input and output functions
, Functions for fixed-length data or records, Functions for filehandles, files, or directories
, Keywords related to the control flow of your Perl program , Keywords related to scoping, Miscellaneous functions, Functions for processes and process groups
, Keywords related to Perl modules , Keywords related to classes and object-orientation
, Low-level socket functions , System V interprocess communication functions
, Fetching user and group info
, Fetching network info , Time-related functions , Non-function keywords
Portability
Alphabetical Listing of Perl Functions -X FILEHANDLE , -X EXPR, -X DIRHANDLE, -X, abs VALUE , abs, accept NEWSOCKET,GENERICSOCKET , alarm SECONDS , alarm, atan2 Y,X , bind SOCKET,NAME , binmode FILEHANDLE, LAYER
, binmode FILEHANDLE, bless REF,CLASSNAME , bless REF, break, caller EXPR , caller, chdir EXPR , chdir FILEHANDLE, chdir DIRHANDLE, chdir, chmod LIST , chomp VARIABLE , chomp( LIST ), chomp, chop VARIABLE , chop( LIST ), chop, chown LIST , chr NUMBER , chr, chroot FILENAME , chroot, close FILEHANDLE , close, closedir DIRHANDLE , connect SOCKET,NAME , continue BLOCK , continue, cos EXPR , cos, crypt PLAINTEXT,SALT

, dbmclose HASH , dbmopen HASH,DBNAME,MASK , defined EXPR , defined, delete EXPR , die LIST , do BLOCK , do EXPR , dump LABEL , dump EXPR, dump, each HASH , each ARRAY , each EXPR, eof FILEHANDLE , eof (), eof, eval EXPR
, eval BLOCK, eval, evalbytes EXPR , evalbytes, exec LIST , exec PROGRAM LIST, exists EXPR , exit EXPR , exit, exp EXPR , exp, fc EXPR , fc, fcntl FILEHANDLE,FUNCTION,SCALAR , __FILE__ , fileno FILEHANDLE , flock FILEHANDLE,OPERATION , fork , format , formline PICTURE,LIST , getc FILEHANDLE , getc, getlogin , getpeername SOCKET , getpgrp PID , getppid
, getpriority WHICH,WHO , getpwnam NAME





, getgrnam NAME, gethostbyname NAME, getnetbyname NAME, getprotobyname NAME, getpwuid UID, getgrgid GID, getservbyname NAME,PROTO, gethostbyaddr ADDR,ADDRTYPE, getnetbyaddr ADDR,ADDRTYPE, getprotobynumber NUMBER, getservbyport PORT,PROTO, getpwent, getgrent, gethostent, getnetent, getprotoent, getservent, setpwent, setgrent, sethostent STAYOPEN, setnetent STAYOPEN, setprotoent STAYOPEN, setservent STAYOPEN, endpwent, endgrent, endhostent, endnetent, endprotoent, endservent, getsockname SOCKET , getsockopt SOCKET,LEVEL,OPTNAME , glob EXPR
, glob, gmtime EXPR , gmtime, goto LABEL , goto EXPR, goto &NAME, grep BLOCK LIST , grep EXPR,LIST, hex EXPR , hex, import LIST , index STR,SUBSTR,POSITION , index STR,SUBSTR, int EXPR
, int, ioctl FILEHANDLE,FUNCTION,SCALAR , join EXPR,LIST , keys HASH , keys ARRAY, keys EXPR, kill SIGNAL, LIST, kill SIGNAL , last LABEL , last EXPR, last, lc EXPR , lc, If use bytes is in effect:, Otherwise, if use locale for LC_CTYPE is in effect:, Otherwise, If EXPR has the UTF8 flag set:, Otherwise, if use feature unicode_strings or use locale :not_characters is in effect:, Otherwise:, lcfirst EXPR , lcfirst, length EXPR , length, __LINE__ , link OLDFILE,NEWFILE , listen SOCKET,QUEUESIZE , local EXPR , localtime EXPR , localtime, lock THING , log EXPR
, log, lstat FILEHANDLE , lstat EXPR, lstat DIRHANDLE, lstat, m//, map BLOCK LIST , map EXPR,LIST, mkdir FILENAME,MASK , mkdir FILENAME, mkdir, msgctl ID,CMD,ARG , msgget KEY,FLAGS , msgrcv ID,VAR,SIZE,TYPE,FLAGS , msgsnd ID,MSG,FLAGS , my VARLIST , my TYPE VARLIST, my VARLIST : ATTRS, my TYPE VARLIST : ATTRS, next LABEL , next EXPR, next, no MODULE VERSION LIST , no MODULE VERSION, no MODULE LIST, no MODULE, no VERSION, oct EXPR , oct, open FILEHANDLE,EXPR , open FILEHANDLE,MODE,EXPR, open FILEHANDLE,MODE,EXPR,LIST, open FILEHANDLE,MODE,REFERENCE, open FILEHANDLE, opendir DIRHANDLE,EXPR , ord EXPR , ord, our VARLIST , our TYPE VARLIST, our VARLIST : ATTRS, our TYPE VARLIST : ATTRS, pack TEMPLATE,LIST , package NAMESPACE, package NAMESPACE VERSION , package NAMESPACE BLOCK, package NAMESPACE VERSION BLOCK , __PACKAGE__ , pipe READHANDLE,WRITEHANDLE , pop ARRAY , pop EXPR, pop, pos SCALAR , pos, print FILEHANDLE LIST , print FILEHANDLE, print LIST, print, printf FILEHANDLE FORMAT, LIST , printf FILEHANDLE, printf FORMAT, LIST, printf, prototype FUNCTION , prototype, push ARRAY,LIST , push EXPR,LIST, q/STRING/, qq/STRING/, qw/STRING/, qx/STRING/, qr/STRING/, quotemeta EXPR , quotemeta, rand EXPR , rand, read FILEHANDLE,SCALAR,LENGTH,OFFSET , read FILEHANDLE,SCALAR,LENGTH, readdir DIRHANDLE , readline EXPR, readline , readlink EXPR , readlink, readpipe EXPR, readpipe , recv SOCKET,SCALAR,LENGTH,FLAGS , redo LABEL , redo EXPR, redo, ref EXPR , ref, rename OLDNAME,NEWNAME , require VERSION , require EXPR, require, reset EXPR , reset, return EXPR , return, reverse LIST , rewinddir DIRHANDLE , rindex STR,SUBSTR,POSITION , rindex STR,SUBSTR, rmdir FILENAME , rmdir, s///, say FILEHANDLE LIST , say FILEHANDLE, say LIST, say, scalar EXPR , seek FILEHANDLE,POSITION,WHENCE , seekdir DIRHANDLE,POS , select FILEHANDLE , select, select RBITS,WBITS,EBITS,TIMEOUT , semctl ID,SEMNUM,CMD,ARG , semget KEY,NSEMS,FLAGS , semop KEY,OPSTRING , send SOCKET,MSG,FLAGS,TO , send SOCKET,MSG,FLAGS, setpgrp PID,PGRP , setpriority WHICH,WHO,PRIORITY
, setsockopt SOCKET,LEVEL,OPTNAME,OPTVAL , shift ARRAY , shift EXPR, shift, shmctl ID,CMD,ARG , shmget KEY,SIZE,FLAGS , shmread ID,VAR,POS,SIZE , shmwrite ID,STRING,POS,SIZE, shutdown SOCKET,HOW , sin EXPR , sin, sleep EXPR , sleep, socket SOCKET,DOMAIN,TYPE,PROTOCOL , socketpair SOCKET1,SOCKET2,DOMAIN,TYPE,PROTOCOL , sort SUBNAME LIST , sort BLOCK LIST, sort LIST, splice ARRAY,OFFSET,LENGTH,LIST , splice ARRAY,OFFSET,LENGTH, splice ARRAY,OFFSET, splice ARRAY, splice EXPR,OFFSET,LENGTH,LIST, splice EXPR,OFFSET,LENGTH, splice EXPR,OFFSET, splice EXPR, split /PATTERN/,EXPR,LIMIT , split /PATTERN/,EXPR, split /PATTERN/, split, sprintf FORMAT, LIST , format parameter index, flags, vector flag, (minimum) width, precision, or maximum width , size, order of arguments, sqrt EXPR , sqrt, srand EXPR , srand, stat FILEHANDLE , stat EXPR, stat DIRHANDLE, stat, state VARLIST , state TYPE VARLIST, state VARLIST : ATTRS, state TYPE VARLIST : ATTRS, study SCALAR , study, sub NAME BLOCK , sub NAME (PROTO) BLOCK, sub NAME : ATTRS BLOCK, sub NAME (PROTO) : ATTRS BLOCK, __SUB__ , substr EXPR,OFFSET,LENGTH,REPLACEMENT , substr EXPR,OFFSET,LENGTH, substr EXPR,OFFSET, symlink OLDFILE,NEWFILE , syscall NUMBER, LIST , sysopen FILEHANDLE,FILENAME,MODE , sysopen FILEHANDLE,FILENAME,MODE,PERMS, sysread FILEHANDLE,SCALAR,LENGTH,OFFSET , sysread FILEHANDLE,SCALAR,LENGTH, sysseek FILEHANDLE,POSITION,WHENCE , system LIST , system PROGRAM LIST, syswrite FILEHANDLE,SCALAR,LENGTH,OFFSET , syswrite FILEHANDLE,SCALAR,LENGTH, syswrite FILEHANDLE,SCALAR, tell FILEHANDLE , tell, telldir DIRHANDLE , tie VARIABLE,CLASSNAME,LIST , tied VARIABLE , time , times , tr///, truncate FILEHANDLE,LENGTH , truncate EXPR,LENGTH, uc EXPR , uc, ucfirst EXPR , ucfirst, umask EXPR , umask, undef EXPR , undef, unlink LIST
, unlink, unpack TEMPLATE,EXPR , unpack TEMPLATE, unshift ARRAY,LIST , unshift EXPR,LIST, untie VARIABLE , use Module VERSION LIST , use Module VERSION, use Module LIST, use Module, use VERSION, utime LIST , values HASH , values ARRAY, values EXPR, vec EXPR,OFFSET,BITS , wait , waitpid PID,FLAGS , wantarray
, warn LIST , write FILEHANDLE , write EXPR, write, y///
Non-function Keywords by Cross-reference __DATA__, __END__, BEGIN, CHECK, END, INIT, UNITCHECK, DESTROY, and, cmp, eq, ge, gt, le, lt, ne, not, or, x, xor, AUTOLOAD, else, elsif, for, foreach, if, unless, until, while, elseif, default, given, when

    perlopentut - simple recipes for opening files and pipes in Perl

DESCRIPTION OK, HANDLE, MODE, PATHNAME
Opening Text Files
Opening Text Files for Reading
Opening Text Files for Writing
Opening Binary Files
Opening Pipes
Low-level File Opens via sysopen
SEE ALSO
AUTHOR and COPYRIGHT

perlpacktut - tutorial on CWpack and CWunpack

DESCRIPTION
The Basic Principle
Packing Text
Packing Numbers
Integers
Unpacking a Stack Frame
How to Eat an Egg on a Net
Byte-order modifiers
Floating point Numbers
Exotic Templates
Bit Strings
Uuencoding
Doing Sums
Unicode
Another Portable Binary Encoding
Template Grouping
Lengths and Widths
String Lengths
Dynamic Templates
Counting Repetitions
Intel HEX
Packing and Unpacking C Structures
The Alignment Pit
Dealing with Endian-ness
Alignment, Take 2
Alignment, Take 3
Pointers for How to Use Them
Pack Recipes
Funnies Section
Authors

    perlpod - the Plain Old Documentation format

DESCRIPTION
Ordinary Paragraph
Verbatim Paragraph
Command Paragraph =head1 Heading Text
, =head2 Heading Text, =head3 Heading Text, =head4 Heading Text, =over indentlevel
, =item stuff..., =back, =cut , =pod , =begin formatname
, =end formatname, =for formatname text..., =encoding encodingname
Formatting Codes I<text> — italic text , B<text> — bold text
, C<code> — code text
, L<name> — a hyperlink , E<escape> — a character escape
, F<filename> — used for filenames , S<text> — text contains non-breaking spaces
, X<topic name> — an index entry
, Z<> — a null (zero-effect) formatting code
The Intent
Embedding Pods in Perl Modules
Hints for Writing Pod

SEE ALSO
AUTHOR

    perlpodspec - Plain Old Documentation: format specification and notes

DESCRIPTION
Pod Definitions
Pod Commands =head1, =head2, =head3, =head4, =pod, =cut, =over, =item, =back, =begin formatname, =begin formatname parameter, =end formatname, =for formatname text..., =encoding encodingname
Pod Formatting Codes I<text> — italic text, B<text> — bold text, C<code> — code text, F<filename> — style for filenames, X<topic name> — an index entry, Z<> — a null (zero-effect) formatting code, L<name> — a hyperlink, E<escape> — a character escape, S<text> — text contains non-breaking spaces
Notes on Implementing Pod Processors
About L<...> Codes First:, Second:, Third:, Fourth:, Fifth:, Sixth:
About =over...=back Regions
About Data Paragraphs and ‘‘=begin/=end’’ Regions
SEE ALSO
AUTHOR

    perlpodstyle - Perl POD style guide

DESCRIPTION NAME, SYNOPSIS, DESCRIPTION, OPTIONS, RETURN VALUE, ERRORS, DIAGNOSTICS, EXAMPLES, ENVIRONMENT, FILES, CAVEATS, BUGS, RESTRICTIONS, NOTES, AUTHOR, HISTORY, COPYRIGHT AND LICENSE, SEE ALSO
SEE ALSO
AUTHOR
COPYRIGHT AND LICENSE

    perldiag - various Perl diagnostics

DESCRIPTION
SEE ALSO

    perllexwarn - Perl Lexical Warnings

DESCRIPTION

    perldebug - Perl debugging

DESCRIPTION
The Perl Debugger
Calling the Debugger perl -d program_name, perl -d -e 0, perl -d:ptkdb program_name, perl -dt threaded_program_name
Debugger Commands h , h [command], h h, p expr , x [maxdepth] expr , V [pkg [vars]] , X [vars] , y [level [vars]] , T , s [expr] , n [expr] , r , <CR>, c [line|sub] , l , l min+incr, l min-max, l line, l subname, - , v [line] , . , f filename , /pattern/, ?pattern?, L [abw] , S [[!]regex] , t [n] , t [n] expr , b , b [line] [condition] , b [file]:[line] [condition] , b subname [condition] , b postpone subname [condition] , b load filename
, b compile subname , B line , B *
, disable [file]:[line]
, disable [line]
, enable [file]:[line]
, enable [line]
, a [line] command , A line , A * , w expr , W expr , W * , o , o booloption ... , o anyoption? ... , o option=value ... , < ? , < [ command ] , < * , << command , > ? , > command , > * , >> command , { ? , { [ command ], { * , {{ command , ! number , ! -number , ! pattern , !! cmd , source file , H -number , q or ^D , R , |dbcmd , ||dbcmd , command, m expr , M , man [manpage]
Configurable Options recallCommand, ShellBang , pager , tkRunning , signalLevel, warnLevel, dieLevel
, AutoTrace , LineInfo , inhibit_exit , PrintRet , ornaments , frame , maxTraceLen , windowSize , arrayDepth, hashDepth , dumpDepth , compactDump, veryCompact , globPrint , DumpDBFiles , DumpPackages , DumpReused , quote, HighBit, undefPrint
, UsageOnly , HistFile , HistSize , TTY , noTTY , ReadLine , NonStop
Debugger Input/Output Prompt, Multiline commands, Stack backtrace , Line Listing Format, Frame listing
Debugging Compile-Time Statements
Debugger Customization
Readline Support / History in the Debugger
Editor Support for Debugging
The Perl Profiler
Debugging Regular Expressions
Debugging Memory Usage
SEE ALSO
BUGS

    perlvar - Perl predefined variables

DESCRIPTION
The Syntax of Variable Names
SPECIAL VARIABLES
General Variables $ARG, $_ , @ARG, @_ , $LIST_SEPARATOR, $" , $PROCESS_ID, $PID, $$ , $PROGRAM_NAME, $0 , $REAL_GROUP_ID, $GID, $(
, $EFFECTIVE_GROUP_ID, $EGID, $) , $REAL_USER_ID, $UID, $< , $EFFECTIVE_USER_ID, $EUID, $> , $SUBSCRIPT_SEPARATOR, $SUBSEP, $; , $a, $b , %ENV , $OLD_PERL_VERSION, $] , $SYSTEM_FD_MAX, $^F
, @F , @INC , %INC , $INPLACE_EDIT, $^I , $^M , $OSNAME, $^O , %SIG , $BASETIME, $^T , $PERL_VERSION, $^V , ${^WIN32_SLOPPY_STAT}
, $EXECUTABLE_NAME, $^X
Variables related to regular expressions $<digits> ($1, $2, ...) , $MATCH, $& , ${^MATCH} , $PREMATCH, $‘ , ${^PREMATCH} , $POSTMATCH, $’
, ${^POSTMATCH} , $LAST_PAREN_MATCH, $+ , $LAST_SUBMATCH_RESULT, $^N , @LAST_MATCH_END, @+ , %LAST_PAREN_MATCH, %+ , @LAST_MATCH_START, @- , $` is the same as substr($var, 0, $-[0]), $& is the same as substr($var, $-[0], $+[0] - $-[0]), $ is the same as substr($var, $+[0]), $1 is the same as substr($var, $-[1], $+[1] - $-[1]), $2 is the same as substr($var, $-[2], $+[2] - $-[2]), $3 is the same as substr($var, $-[3], $+[3] - $-[3]), %LAST_MATCH_START, %- , $LAST_REGEXP_CODE_RESULT, $^R , ${^RE_DEBUG_FLAGS} , ${^RE_TRIE_MAXBUF}
Variables related to filehandles $ARGV , @ARGV , ARGV , ARGVOUT , IO::Handle->output_field_separator( EXPR ), $OUTPUT_FIELD_SEPARATOR, $OFS, $, , HANDLE->input_line_number( EXPR ), $INPUT_LINE_NUMBER, $NR, $. , IO::Handle->input_record_separator( EXPR ), $INPUT_RECORD_SEPARATOR, $RS, $/ , IO::Handle->output_record_separator( EXPR ), $OUTPUT_RECORD_SEPARATOR, $ORS, $\ , HANDLE->autoflush( EXPR ), $OUTPUT_AUTOFLUSH, $| , ${^LAST_FH} , $ACCUMULATOR, $^A , IO::Handle->format_formfeed(EXPR), $FORMAT_FORMFEED, $^L , HANDLE->format_page_number(EXPR), $FORMAT_PAGE_NUMBER, $% , HANDLE->format_lines_left(EXPR), $FORMAT_LINES_LEFT, $- , IO::Handle->format_line_break_characters EXPR, $FORMAT_LINE_BREAK_CHARACTERS, $: , HANDLE->format_lines_per_page(EXPR), $FORMAT_LINES_PER_PAGE, $= , HANDLE->format_top_name(EXPR), $FORMAT_TOP_NAME, $^ , HANDLE->format_name(EXPR), $FORMAT_NAME, $~
Error Variables ${^CHILD_ERROR_NATIVE} , $EXTENDED_OS_ERROR, $^E
, $EXCEPTIONS_BEING_CAUGHT, $^S , $WARNING, $^W , ${^WARNING_BITS} , $OS_ERROR, $ERRNO, $! , %OS_ERROR, %ERRNO, %! , $CHILD_ERROR, $? , $EVAL_ERROR, $@
Variables related to the interpreter state $COMPILING, $^C , $DEBUGGING, $^D , ${^ENCODING} , ${^GLOBAL_PHASE} , CONSTRUCT, START, CHECK, INIT, RUN, END, DESTRUCT, $^H , %^H , ${^OPEN} , $PERLDB, $^P , 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x100, 0x200, 0x400, 0x800, 0x1000, ${^TAINT} , ${^UNICODE} , ${^UTF8CACHE} , ${^UTF8LOCALE}
Deprecated and removed variables $# , $* , $[

    perlre - Perl regular expressions

DESCRIPTION
Modifiers m , s , i , x , p
, a, d, l and u , n , Other Modifiers
Regular Expressions [1], [2], [3], [4], [5], [6], [7], [8]
Quoting metacharacters
Extended Patterns (?#text) , (?adlupimnsx-imnsx), (?^alupimnsx) , (?:pattern) , (?adluimnsx-imnsx:pattern), (?^aluimnsx:pattern) , (?|pattern) , Look-Around Assertions
, (?=pattern) , (?!pattern) , (?<=pattern) \K
, (?<!pattern)
, (?NAMEpattern), (?<NAME>pattern)
, \k<NAME>, \kNAME, (?{ code }) , (??{ code }) , (?PARNO) (?-PARNO) (?+PARNO) (?R) (?0)

, (?&NAME) , (?(condition)yes-pattern|no-pattern) , (?(condition)yes-pattern), (1) (2) .., (<NAME>) (’NAME’), (?=...) (?!...) (?<=...) (?<!...), (?{ CODE }), (R), (R1) (R2) .., (R&NAME), (DEFINE), (?>pattern) , (?[ ])
Special Backtracking Control Verbs Verbs that take an argument, (*PRUNE) (*PRUNE:NAME) , (*SKIP) (*SKIP:NAME) , (*MARK:NAME) (*:NAME) , (*THEN) (*THEN:NAME), Verbs without an argument, (*COMMIT) , (*FAIL) (*F) , (*ACCEPT)
Backtracking
Version 8 Regular Expressions
Warning on \1 Instead of $1
Repeated Patterns Matching a Zero-length Substring
Combining RE Pieces ST, S|T, S{REPEAT_COUNT}, S{min,max}, S{min,max}?, S?, S*, S+, S??, S*?, S+?, (?>S), (?=S), (?<=S), (?!S), (?<!S), (??{ EXPR }), (?PARNO), (?(condition)yes-pattern|no-pattern)
Creating Custom RE Engines
Embedded Code Execution Frequency
PCRE/Python Support (?P<NAME>pattern), (?P=NAME), (?P>NAME)
BUGS
SEE ALSO

    perlrebackslash - Perl Regular Expression Backslash Sequences and Escapes

DESCRIPTION
The backslash [1]
All the sequences and escapes
Character Escapes [1], [2]
Modifiers
Character classes
Referencing
Assertions \A, \z, \Z, \G, \b{}, \b, \B{}, \B, \b{gcb} or \b{g}, \b{sb}, \b{wb}
Misc \C, \K, \N, \R , \X

    perlrecharclass - Perl Regular Expression Character Classes

DESCRIPTION
The dot
Backslash sequences If the /a modifier is in effect .., otherwise .., For code points above 255 .., For code points below 256 .., if locale rules are in effect .., if Unicode rules are in effect .., otherwise .., If the /a modifier is in effect .., otherwise .., For code points above 255 .., For code points below 256 .., if locale rules are in effect .., if Unicode rules are in effect .., otherwise .., [1], [2]
Bracketed Character Classes [1], [2], [3], [4], [5], [6], If the /a modifier, is in effect .., otherwise .., For code points above 255 .., For code points below 256 .., if locale rules are in effect .., word, ascii, blank, if Unicode rules are in effect .., otherwise ..

    perlreref - Perl Regular Expressions Reference

DESCRIPTION
OPERATORS
SYNTAX
ESCAPE SEQUENCES
CHARACTER CLASSES
ANCHORS
QUANTIFIERS
EXTENDED CONSTRUCTS
VARIABLES
FUNCTIONS
TERMINOLOGY
AUTHOR
SEE ALSO
THANKS

    perlref - Perl references and nested data structures

NOTE
DESCRIPTION
Making References 1. , 2.
, 3.

, 4. , 5. , 6. , 7.
Using References
Circular References
Symbolic references
Not-so-symbolic references
Pseudo-hashes: Using an array as a hash
Function Templates
WARNING
Postfix Dereference Syntax
Postfix Reference Slicing
Assigning to References
SEE ALSO

    perlform - Perl formats

DESCRIPTION
Text Fields
Numeric Fields
The Field @* for Variable-Width Multi-Line Text
The Field ^* for Variable-Width One-line-at-a-time Text
Specifying Values
Using Fill Mode
Suppressing Lines Where All Fields Are Void
Repeating Format Lines
Top of Form Processing
Format Variables
NOTES
Footers
Accessing Formatting Internals
WARNINGS

    perlobj - Perl object reference

DESCRIPTION
An Object is Simply a Data Structure
A Class is Simply a Package
A Method is Simply a Subroutine
Method Invocation
Inheritance
Writing Constructors
Attributes
An Aside About Smarter and Safer Code
Method Call Variations
Invoking Class Methods
bless, blessed, and ref
The UNIVERSAL Class isa($class) , DOES($role) , can($method) , VERSION($need)
AUTOLOAD
Destructors
Non-Hash Objects
Inside-Out objects
Pseudo-hashes
SEE ALSO

    perltie - how to hide an object class in a simple variable

SYNOPSIS
DESCRIPTION
Tying Scalars TIESCALAR classname, LIST , FETCH this , STORE this, value , UNTIE this , DESTROY this
Tying Arrays TIEARRAY classname, LIST , FETCH this, index , STORE this, index, value , FETCHSIZE this , STORESIZE this, count , EXTEND this, count , EXISTS this, key , DELETE this, key , CLEAR this , PUSH this, LIST
, POP this , SHIFT this , UNSHIFT this, LIST , SPLICE this, offset, length, LIST , UNTIE this , DESTROY this
Tying Hashes USER, HOME, CLOBBER, LIST, TIEHASH classname, LIST , FETCH this, key , STORE this, key, value , DELETE this, key , CLEAR this , EXISTS this, key , FIRSTKEY this , NEXTKEY this, lastkey , SCALAR this , UNTIE this , DESTROY this
Tying FileHandles TIEHANDLE classname, LIST , WRITE this, LIST , PRINT this, LIST , PRINTF this, LIST , READ this, LIST , READLINE this , GETC this , EOF this , CLOSE this , UNTIE this , DESTROY this
UNTIE this
The untie Gotcha
SEE ALSO
BUGS
AUTHOR

    perldbmfilter - Perl DBM Filters

SYNOPSIS
DESCRIPTION <B>filter_store_keyB>, <B>filter_store_valueB>, <B>filter_fetch_keyB>, <B>filter_fetch_valueB>
The Filter
An Example: the NULL termination problem.
Another Example: Key is a C int.
SEE ALSO
AUTHOR

    perlipc - Perl interprocess communication (signals, fifos, pipes, safe subprocesses, sockets, and semaphores)

DESCRIPTION
Signals
Handling the SIGHUP Signal in Daemons
Deferred Signals (Safe Signals) Long-running opcodes, Interrupting IO, Restartable system calls, Signals as faults, Signals triggered by operating system state
Named Pipes
Using open() for IPC
Filehandles
Background Processes
Complete Dissociation of Child from Parent
Safe Pipe Opens
Avoiding Pipe Deadlocks
Bidirectional Communication with Another Process
Bidirectional Communication with Yourself
Sockets: Client/Server Communication
Internet Line Terminators
Internet TCP Clients and Servers
Unix-Domain TCP Clients and Servers
TCP Clients with IO::Socket
A Simple Client Proto, PeerAddr, PeerPort
A Webget Client
Interactive Client with IO::Socket
TCP Servers with IO::Socket Proto, LocalPort, Listen, Reuse
UDP: Message Passing
SysV IPC
NOTES
BUGS
AUTHOR
SEE ALSO

perlfork - Perl’s fork() emulation

SYNOPSIS
DESCRIPTION
Behavior of other Perl features in forked pseudo-processes $$ or $PROCESS_ID, %ENV, chdir() and all other builtins that accept filenames, wait() and waitpid(), kill(), exec(), exit(), Open handles to files, directories and network sockets
Resource limits
Killing the parent process
Lifetime of the parent process and pseudo-processes
CAVEATS AND LIMITATIONS BEGIN blocks, Open filehandles, Open directory handles, Forking pipe open() not yet implemented, Global state maintained by XSUBs, Interpreter embedded in larger application, Thread-safety of extensions
PORTABILITY CAVEATS
BUGS
AUTHOR
SEE ALSO

    perlnumber - semantics of numbers and numeric operations in Perl

SYNOPSIS
DESCRIPTION
Storing numbers
Numeric operators and numeric conversions
Flavors of Perl numeric operations Arithmetic operators, ++, Arithmetic operators during use integer, Other mathematical operators, Bitwise operators, Bitwise operators during use integer, Operators which expect an integer, Operators which expect a string
AUTHOR
SEE ALSO

    perlthrtut - Tutorial on threads in Perl

DESCRIPTION
What Is A Thread Anyway?
Threaded Program Models
Boss/Worker
Work Crew
Pipeline
What kind of threads are Perl threads?
Thread-Safe Modules
Thread Basics
Basic Thread Support
A Note about the Examples
Creating Threads
Waiting For A Thread To Exit
Ignoring A Thread
Process and Thread Termination
Threads And Data
Shared And Unshared Data
Thread Pitfalls: Races
Synchronization and control
Controlling access: lock()
A Thread Pitfall: Deadlocks
Queues: Passing Data Around
Semaphores: Synchronizing Data Access
Basic semaphores
Advanced Semaphores
Waiting for a Condition
Giving up control
General Thread Utility Routines
What Thread Am I In?
Thread IDs
Are These Threads The Same?
What Threads Are Running?
A Complete Example
Different implementations of threads
Performance considerations
Process-scope Changes
Thread-Safety of System Libraries
Conclusion
SEE ALSO
Bibliography
Introductory Texts
OS-Related References
Other References
Acknowledgements
AUTHOR
Copyrights

    perlport - Writing portable Perl

DESCRIPTION Not all Perl programs have to be portable, Nearly all of Perl already is portable
ISSUES
Newlines
Numbers endianness and Width
Files and Filesystems
System Interaction
Command names versus file pathnames
Networking
Interprocess Communication (IPC)
External Subroutines (XS)
Standard Modules
Time and Date
Character sets and character encoding
Internationalisation
System Resources
Security
Style
CPAN Testers
PLATFORMS
Unix
DOS and Derivatives
VMS
VOS
EBCDIC Platforms
Acorn RISC OS
Other perls
FUNCTION IMPLEMENTATIONS
Alphabetical Listing of Perl Functions -X, alarm, atan2, binmode, chmod, chown, chroot, crypt, dbmclose, dbmopen, dump, exec, exit, fcntl, flock, fork, getlogin, getpgrp, getppid, getpriority, getpwnam, getgrnam, getnetbyname, getpwuid, getgrgid, getnetbyaddr, getprotobynumber, getservbyport, getpwent, getgrent, gethostbyname, gethostent, getnetent, getprotoent, getservent, seekdir, sethostent, setnetent, setprotoent, setservent, endpwent, endgrent, endhostent, endnetent, endprotoent, endservent, getsockopt SOCKET,LEVEL,OPTNAME, glob, gmtime, ioctl FILEHANDLE,FUNCTION,SCALAR, kill, link, localtime, lstat, msgctl, msgget, msgsnd, msgrcv, open, readlink, rename, rewinddir, select, semctl, semget, semop, setgrent, setpgrp, setpriority, setpwent, setsockopt, shmctl, shmget, shmread, shmwrite, sleep, sockatmark, socketpair, stat, symlink, syscall, sysopen, system, telldir, times, truncate, umask, utime, wait, waitpid
Supported Platforms Linux (x86, ARM, IA64), HP-UX, AIX, Win32, Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, Cygwin, Solaris (x86, SPARC), OpenVMS, Alpha (7.2 and later), I64 (8.2 and later), Symbian, NetBSD, FreeBSD, Debian GNU/kFreeBSD, Haiku, Irix (6.5. What else?), OpenBSD, Dragonfly BSD, Midnight BSD, QNX Neutrino RTOS (6.5.0), MirOS BSD, Stratus OpenVOS (17.0 or later), time_t issues that may or may not be fixed, Symbian (Series 60 v3, 3.2 and 5 - what else?), Stratus VOS / OpenVOS, AIX, Android, FreeMINT
EOL Platforms
(Perl 5.20) AT&T 3b1
(Perl 5.14) Windows 95, Windows 98, Windows ME, Windows NT4
(Perl 5.12) Atari MiNT, Apollo Domain/OS, Apple Mac OS 8/9, Tenon Machten
Supported Platforms (Perl 5.8)
SEE ALSO
AUTHORS / CONTRIBUTORS

    perllocale - Perl locale handling (internationalization and localization)

DESCRIPTION
WHAT IS A LOCALE Category LC_NUMERIC: Numeric formatting, Category LC_MONETARY: Formatting of monetary amounts, Category LC_TIME: Date/Time formatting, Category LC_MESSAGES: Error and other messages, Category LC_COLLATE: Collation, Category LC_CTYPE: Character Types, Other categories
PREPARING TO USE LOCALES
USING LOCALES
The ‘‘use locale’’ pragma <B>Not within the scope of B>"use locale"<B>B>, <B>Lingering effects of B>use locale<B>B>, <B>Under B>"use locale";<B>B>
The setlocale function
Finding locales
LOCALE PROBLEMS
Testing for broken locales
Temporarily fixing locale problems
Permanently fixing locale problems
Permanently fixing your system’s locale configuration
Fixing system locale configuration
The localeconv function
I18N::Langinfo
LOCALE CATEGORIES
Category LC_COLLATE: Collation
Category LC_CTYPE: Character Types
Category LC_NUMERIC: Numeric Formatting
Category LC_MONETARY: Formatting of monetary amounts
LC_TIME
Other categories
SECURITY
ENVIRONMENT PERL_SKIP_LOCALE_INIT, PERL_BADLANG, LC_ALL, LANGUAGE, LC_CTYPE, LC_COLLATE, LC_MONETARY, LC_NUMERIC, LC_TIME, LANG
Examples
NOTES
String eval and LC_NUMERIC
Backward compatibility
I18N:Collate obsolete
Sort speed and memory use impacts
Freely available locale definitions
I18n and l10n
An imperfect standard
Unicode and UTF-8
BUGS
Broken systems
SEE ALSO
HISTORY

    perluniintro - Perl Unicode introduction

DESCRIPTION
Unicode
Perl’s Unicode Support
Perl’s Unicode Model
Unicode and EBCDIC
Creating Unicode
Handling Unicode
Legacy Encodings
Unicode I/O
Displaying Unicode As Text
Special Cases
Advanced Topics
Miscellaneous
Questions With Answers
Hexadecimal Notation
Further Resources
UNICODE IN OLDER PERLS
SEE ALSO
ACKNOWLEDGMENTS
AUTHOR, COPYRIGHT, AND LICENSE

    perlunicode - Unicode support in Perl

DESCRIPTION
Important Caveats Safest if you use feature unicode_strings, Input and Output Layers, You should convert your non-ASCII, non-UTF-8 Perl scripts to be UTF-8, use utf8 still needed to enable UTF-8 in scripts, BOM-marked scripts and UTF-16 scripts autodetected
Byte and Character Semantics
ASCII Rules versus Unicode Rules When the string has been upgraded to UTF-8, There are additional methods for regular expression patterns
Extended Grapheme Clusters (Logical characters)
Unicode Character Properties <B>B>\p{All}<B>B>, <B>B>\p{Alnum}<B>B>, <B>B>\p{Any}<B>B>, <B>B>\p{ASCII}<B>B>, <B>B>\p{Assigned}<B>B>, <B>B>\p{Blank}<B>B>, <B>B>\p{Decomposition_Type: Non_Canonical}<B>B> (Short: \p{Dt=NonCanon}), <B>B>\p{Graph}<B>B>, <B>B>\p{HorizSpace}<B>B>, <B>B>\p{In=*}<B>B>, <B>B>\p{PerlSpace}<B>B>, <B>B>\p{PerlWord}<B>B>, <B>B>\p{Posix...}<B>B>, <B>B>\p{Present_In: *}<B>B> (Short: \p{In=*}), <B>B>\p{Print}<B>B>, <B>B>\p{SpacePerl}<B>B>, <B>B>\p{Title}<B>B> and <B>B>\p{Titlecase}<B>B>, <B>B>\p{Unicode}<B>B>, <B>B>\p{VertSpace}<B>B>, <B>B>\p{Word}<B>B>, <B>B>\p{XPosix...}<B>B>
User-Defined Character Properties
User-Defined Case Mappings (for serious hackers only)
Character Encodings for Input and Output
Unicode Regular Expression Support Level [1] \N{U+...} and \x{...}, [2] \p{...} \P{...}, [3] supports not only minimal list, but all Unicode character properties (see Unicode Character Properties above), [4] \d \D \s \S \w \W \X [:prop:] [:^prop:], [5] The experimental feature starting in v5.18 "(?[...])" accomplishes this, [6] \b \B, [7] Note that Perl does Full case-folding in matching, not Simple:, [8] Perl treats \n as the start- and end-line delimiter. Unicode specifies more characters that should be so-interpreted, [9] But Unicode::LineBreak is available, [10] UTF-8/UTF-EBDDIC used in Perl allows not only U+10000 to U+10FFFF but also beyond U+10FFFF
Unicode Encodings
Noncharacter code points
Beyond Unicode code points
Security Implications of Unicode
Unicode in Perl on EBCDIC
Locales
When Unicode Does Not Happen
The ‘‘Unicode Bug’’
Forcing Unicode in Perl (Or Unforcing Unicode in Perl)
Using Unicode in XS
Hacking Perl to work on earlier Unicode versions (for very serious hackers only)
Porting code from perl-5.6.X
BUGS
Interaction with Extensions
Speed
SEE ALSO

    perlunicook - cookbookish examples of handling Unicode in Perl

DESCRIPTION
EXAMPLES
X 0: Standard preamble
X 1: Generic Unicode-savvy filter
X 2: Fine-tuning Unicode warnings
X 3: Declare source in utf8 for identifiers and literals
X 4: Characters and their numbers
X 5: Unicode literals by character number
X 6: Get character name by number
X 7: Get character number by name
X 8: Unicode named characters
X 9: Unicode named sequences
X 10: Custom named characters
X 11: Names of CJK codepoints
X 12: Explicit encode/decode
X 13: Decode program arguments as utf8
X 14: Decode program arguments as locale encoding
X 15: Declare STD{IN,OUT,ERR} to be utf8
X 16: Declare STD{IN,OUT,ERR} to be in locale encoding
X 17: Make file I/O default to utf8
X 18: Make all I/O and args default to utf8
X 19: Open file with specific encoding
X 20: Unicode casing
X 21: Unicode case-insensitive comparisons
X 22: Match Unicode linebreak sequence in regex
X 23: Get character category
X 24: Disabling Unicode-awareness in builtin charclasses
X 25: Match Unicode properties in regex with \p, \P
X 26: Custom character properties
X 27: Unicode normalization
X 28: Convert non-ASCII Unicode numerics
X 29: Match Unicode grapheme cluster in regex
X 30: Extract by grapheme instead of by codepoint (regex)
X 31: Extract by grapheme instead of by codepoint (substr)
X 32: Reverse string by grapheme
X 33: String length in graphemes
X 34: Unicode column-width for printing
X 35: Unicode collation
X 36: Case- and accent-insensitive Unicode sort
X 37: Unicode locale collation
X 38: Making cmp work on text instead of codepoints
X 39: Case- and accent-insensitive comparisons
X 40: Case- and accent-insensitive locale comparisons
X 41: Unicode linebreaking
X 42: Unicode text in DBM hashes, the tedious way
X 43: Unicode text in DBM hashes, the easy way
X 44: PROGRAM: Demo of Unicode collation and printing
SEE ALSO X3.13 Default Case Algorithms, page 113; X4.2 Case, pages 120X122; Case Mappings, page 166X172, especially Caseless Matching starting on page 170, UAX #44: Unicode Character Database, UTS #18: Unicode Regular Expressions, UAX #15: Unicode Normalization Forms, UTS #10: Unicode Collation Algorithm, UAX #29: Unicode Text Segmentation, UAX #14: Unicode Line Breaking Algorithm, UAX #11: East Asian Width
AUTHOR
COPYRIGHT AND LICENCE
REVISION HISTORY

    perlunifaq - Perl Unicode FAQ

Q and A
perlunitut isn’t really a Unicode tutorial, is it?
What character encodings does Perl support?
Which version of perl should I use?
What about binary data, like images?
When should I decode or encode?
What if I don’t decode?
What if I don’t encode?
Is there a way to automatically decode or encode?
What if I don’t know which encoding was used?
Can I use Unicode in my Perl sources?
Data::Dumper doesn’t restore the UTF8 flag; is it broken?
Why do regex character classes sometimes match only in the ASCII range?
Why do some characters not uppercase or lowercase correctly?
How can I determine if a string is a text string or a binary string?
How do I convert from encoding FOO to encoding BAR?
What are decode_utf8 and encode_utf8?
What is a ‘‘wide character’’?
INTERNALS
What is ‘‘the UTF8 flag’’?
What about the use bytes pragma?
What about the use encoding pragma?
What is the difference between :encoding and :utf8?
What’s the difference between UTF-8 and utf8?
I lost track; what encoding is the internal format really?
AUTHOR
SEE ALSO

    perluniprops - Index of Unicode Version 7.0.0 character properties in Perl

DESCRIPTION
Properties accessible through \p{} and \P{} Single form (\p{name}) tighter rules:, white space adjacent to a non-word character, underscores separating digits in numbers, Compound form (\p{name=value} or \p{name:value}) tighter rules:, Stabilized, Deprecated, Obsolete
Legal \p{} and \P{} constructs that match no characters \p{Canonical_Combining_Class=Attached_Below_Left}, \p{Canonical_Combining_Class=CCC133}, \p{Grapheme_Cluster_Break=Prepend}
Properties accessible through Unicode::UCD
Properties accessible through other means
Unicode character properties that are NOT accepted by Perl Expands_On_NFC (XO_NFC), Expands_On_NFD (XO_NFD), Expands_On_NFKC (XO_NFKC), Expands_On_NFKD (XO_NFKD), Grapheme_Link (Gr_Link), Indic_Matra_Category (InMC), Indic_Syllabic_Category (InSC), Jamo_Short_Name (JSN), Other_Alphabetic (OAlpha), Other_Default_Ignorable_Code_Point (ODI), Other_Grapheme_Extend (OGr_Ext), Other_ID_Continue (OIDC), Other_ID_Start (OIDS), Other_Lowercase (OLower), Other_Math (OMath), Other_Uppercase (OUpper), Script=Katakana_Or_Hiragana (sc=Hrkt), Script_Extensions=Katakana_Or_Hiragana (scx=Hrkt)
Other information in the Unicode data base auxiliary/GraphemeBreakTest.html, auxiliary/LineBreakTest.html, auxiliary/SentenceBreakTest.html, auxiliary/WordBreakTest.html, auxiliary/LBTest.txt, BidiCharacterTest.txt, BidiTest.txt, NormTest.txt, CJKRadicals.txt, EmojiSources.txt, Index.txt, IndicMatraCategory.txt, IndicSyllabicCategory.txt, NamedSqProv.txt, NamesList.html, NamesList.txt, NormalizationCorrections.txt, Props.txt, ReadMe.txt, StandardizedVariants.html, StandardizedVariants.txt, USourceData.txt, USourceGlyphs.pdf
SEE ALSO

    perlunitut - Perl Unicode Tutorial

DESCRIPTION
Definitions
Your new toolkit
I/O flow (the actual 5 minute tutorial)
SUMMARY
Q and A (or FAQ)
ACKNOWLEDGEMENTS
AUTHOR
SEE ALSO

    perlebcdic - Considerations for running Perl on EBCDIC platforms

DESCRIPTION
COMMON CHARACTER CODE SETS
ASCII
ISO 8859
Latin 1 (ISO 8859-1)
EBCDIC <B>0037B>, <B>1047B>, <B>POSIX-BCB>
Unicode code points versus EBCDIC code points
Unicode and UTF
Using Encode
SINGLE OCTET TABLES recipe 0, recipe 1, recipe 2, recipe 3, recipe 4, recipe 5, recipe 6
Table in hex, sorted in 1047 order
IDENTIFYING CHARACTER CODE SETS
CONVERSIONS
utf8::unicode_to_native() and utf8::native_to_unicode()
tr///
iconv
C RTL
OPERATOR DIFFERENCES
FUNCTION DIFFERENCES chr(), ord(), pack(), print(), printf(), sort(), sprintf(), unpack()
REGULAR EXPRESSION DIFFERENCES
SOCKETS
SORTING
Ignore ASCII vs. EBCDIC sort differences.
Use a sort helper function
MONO CASE then sort data (for non-digits, non-underscore)
Perform sorting on one type of platform only.
TRANSFORMATION FORMATS
URL decoding and encoding
uu encoding and decoding
Quoted-Printable encoding and decoding
Caesarean ciphers
Hashing order and checksums
I18N AND L10N
MULTI-OCTET CHARACTER SETS
OS ISSUES
OS/400 PASE, IFS access
OS/390, z/OS sigaction, chcp, dataset access, iconv, locales
POSIX-BC?
BUGS
SEE ALSO
REFERENCES
HISTORY
AUTHOR

    perlsec - Perl security

DESCRIPTION
SECURITY VULNERABILITY CONTACT INFORMATION
SECURITY MECHANISMS AND CONCERNS
Taint mode
Laundering and Detecting Tainted Data
Switches On the ‘‘#!’’ Line
Taint mode and @INC
Cleaning Up Your Path
Security Bugs
Protecting Your Programs
Unicode
Algorithmic Complexity Attacks Hash Seed Randomization, Hash Traversal Randomization, Bucket Order Perturbance, New Default Hash Function, Alternative Hash Functions
SEE ALSO

    perlmod - Perl modules (packages and symbol tables)

DESCRIPTION
Is this the document you were after? This doc, perlnewmod, perlmodstyle
Packages
Symbol Tables
BEGIN, UNITCHECK, CHECK, INIT and END
Perl Classes
Perl Modules
Making your module threadsafe
SEE ALSO

    perlmodlib - constructing new Perl modules and finding existing ones

THE PERL MODULE LIBRARY
Pragmatic Modules arybase, attributes, autodie, autodie::exception, autodie::exception::system, autodie::hints, autodie::skip, autouse, base, bigint, bignum, bigrat, blib, bytes, charnames, constant, deprecate, diagnostics, encoding, encoding::warnings, experimental, feature, fields, filetest, if, integer, less, lib, locale, mro, ok, open, ops, overload, overloading, parent, re, sigtrap, sort, strict, subs, threads, threads::shared, utf8, vars, version, vmsish, warnings::register
Standard Modules AnyDBM_File, App::Cpan, App::Prove, App::Prove::State, App::Prove::State::Result, App::Prove::State::Result::Test, Archive::Tar, Archive::Tar::File, Attribute::Handlers, AutoLoader, AutoSplit, B, B::Concise, B::Debug, B::Deparse, B::Op_private, B::Showlex, B::Terse, B::Xref, Benchmark, IO::Socket::IP, Socket, CORE, CPAN, CPAN::API::HOWTO, CPAN::Debug, CPAN::Distroprefs, CPAN::FirstTime, CPAN::HandleConfig, CPAN::Kwalify, CPAN::Meta, CPAN::Meta::Converter, CPAN::Meta::Feature, CPAN::Meta::History, CPAN::Meta::History::Meta_1_0, CPAN::Meta::History::Meta_1_1, CPAN::Meta::History::Meta_1_2, CPAN::Meta::History::Meta_1_3, CPAN::Meta::History::Meta_1_4, CPAN::Meta::Merge, CPAN::Meta::Prereqs, CPAN::Meta::Requirements, CPAN::Meta::Spec, CPAN::Meta::Validator, CPAN::Meta::YAML, CPAN::Nox, CPAN::Plugin, CPAN::Plugin::Specfile, CPAN::Queue, CPAN::Tarzip, CPAN::Version, Carp, Class::Struct, Compress::Raw::Bzip2, Compress::Raw::Zlib, Compress::Zlib, Config, Config::Perl::V, Cwd, DB, DBM_Filter, DBM_Filter::compress, DBM_Filter::encode, DBM_Filter::int32, DBM_Filter::null, DBM_Filter::utf8, DB_File, Data::Dumper, Devel::PPPort, Devel::Peek, Devel::SelfStubber, Digest, Digest::MD5, Digest::SHA, Digest::base, Digest::file, DirHandle, Dumpvalue, DynaLoader, Encode, Encode::Alias, Encode::Byte, Encode::CJKConstants, Encode::CN, Encode::CN::HZ, Encode::Config, Encode::EBCDIC, Encode::Encoder, Encode::Encoding, Encode::GSM0338, Encode::Guess, Encode::JP, Encode::JP::H2Z, Encode::JP::JIS7, Encode::KR, Encode::KR::2022_KR, Encode::MIME::Header, Encode::MIME::Name, Encode::PerlIO, Encode::Supported, Encode::Symbol, Encode::TW, Encode::Unicode, Encode::Unicode::UTF7, English, Env, Errno, Exporter, Exporter::Heavy, ExtUtils::CBuilder, ExtUtils::CBuilder::Platform::Windows, ExtUtils::Command, ExtUtils::Command::MM, ExtUtils::Constant, ExtUtils::Constant::Base, ExtUtils::Constant::Utils, ExtUtils::Constant::XS, ExtUtils::Embed, ExtUtils::Install, ExtUtils::Installed, ExtUtils::Liblist, ExtUtils::MM, ExtUtils::MM_AIX, ExtUtils::MM_Any, ExtUtils::MM_BeOS, ExtUtils::MM_Cygwin, ExtUtils::MM_DOS, ExtUtils::MM_Darwin, ExtUtils::MM_MacOS, ExtUtils::MM_NW5, ExtUtils::MM_OS2, ExtUtils::MM_QNX, ExtUtils::MM_UWIN, ExtUtils::MM_Unix, ExtUtils::MM_VMS, ExtUtils::MM_VOS, ExtUtils::MM_Win32, ExtUtils::MM_Win95, ExtUtils::MY, ExtUtils::MakeMaker, ExtUtils::MakeMaker::Config, ExtUtils::MakeMaker::FAQ, ExtUtils::MakeMaker::Locale, ExtUtils::MakeMaker::Tutorial, ExtUtils::Manifest, ExtUtils::Miniperl, ExtUtils::Mkbootstrap, ExtUtils::Mksymlists, ExtUtils::Packlist, ExtUtils::ParseXS, ExtUtils::ParseXS::Constants, ExtUtils::ParseXS::Eval, ExtUtils::ParseXS::Utilities, ExtUtils::Typemaps, ExtUtils::Typemaps::Cmd, ExtUtils::Typemaps::InputMap, ExtUtils::Typemaps::OutputMap, ExtUtils::Typemaps::Type, ExtUtils::XSSymSet, ExtUtils::testlib, Fatal, Fcntl, File::Basename, File::Compare, File::Copy, File::DosGlob, File::Fetch, File::Find, File::Glob, File::GlobMapper, File::Path, File::Spec, File::Spec::Cygwin, File::Spec::Epoc, File::Spec::Functions, File::Spec::Mac, File::Spec::OS2, File::Spec::Unix, File::Spec::VMS, File::Spec::Win32, File::Temp, File::stat, FileCache, FileHandle, Filter::Simple, Filter::Util::Call, FindBin, GDBM_File, Getopt::Long, Getopt::Std, HTTP::Tiny, Hash::Util, Hash::Util::FieldHash, I18N::Collate, I18N::LangTags, I18N::LangTags::Detect, I18N::LangTags::List, I18N::Langinfo, IO, IO::Compress::Base, IO::Compress::Bzip2, IO::Compress::Deflate, IO::Compress::FAQ, IO::Compress::Gzip, IO::Compress::RawDeflate, IO::Compress::Zip, IO::Dir, IO::File, IO::Handle, IO::Pipe, IO::Poll, IO::Seekable, IO::Select, IO::Socket, IO::Socket::INET, IO::Socket::UNIX, IO::Uncompress::AnyInflate, IO::Uncompress::AnyUncompress, IO::Uncompress::Base, IO::Uncompress::Bunzip2, IO::Uncompress::Gunzip, IO::Uncompress::Inflate, IO::Uncompress::RawInflate, IO::Uncompress::Unzip, IO::Zlib, IPC::Cmd, IPC::Msg, IPC::Open2, IPC::Open3, IPC::Semaphore, IPC::SharedMem, IPC::SysV, JSON::PP, JSON::PP::Boolean, List::Util, List::Util::XS, Locale::Codes, Locale::Codes::API, Locale::Codes::Changes, Locale::Codes::Constants, Locale::Codes::Country, Locale::Codes::Currency, Locale::Codes::LangExt, Locale::Codes::LangFam, Locale::Codes::LangFam_Retired, Locale::Codes::LangVar, Locale::Codes::Language, Locale::Codes::Script, Locale::Country, Locale::Currency, Locale::Language, Locale::Maketext, Locale::Maketext::Cookbook, Locale::Maketext::Guts, Locale::Maketext::GutsLoader, Locale::Maketext::Simple, Locale::Maketext::TPJ13, Locale::Script, MIME::Base64, MIME::QuotedPrint, Math::BigFloat, Math::BigInt, Math::BigInt::Calc, Math::BigInt::CalcEmu, Math::BigInt::FastCalc, Math::BigRat, Math::Complex, Math::Trig, Memoize, Memoize::AnyDBM_File, Memoize::Expire, Memoize::ExpireFile, Memoize::ExpireTest, Memoize::NDBM_File, Memoize::SDBM_File, Memoize::Storable, Module::CoreList, Module::CoreList::Utils, Module::Load, Module::Load::Conditional, Module::Loaded, Module::Metadata, NDBM_File, NEXT, Net::Cmd, Net::Config, Net::Domain, Net::FTP, Net::FTP::dataconn, Net::NNTP, Net::Netrc, Net::POP3, Net::Ping, Net::SMTP, Net::Time, Net::hostent, Net::libnetFAQ, Net::netent, Net::protoent, Net::servent, O, ODBM_File, Opcode, POSIX, Params::Check, Parse::CPAN::Meta, Perl::OSType, PerlIO, PerlIO::encoding, PerlIO::mmap, PerlIO::scalar, PerlIO::via, PerlIO::via::QuotedPrint, Pod::Escapes, Pod::Find, Pod::Functions, Pod::Html, Pod::InputObjects, Pod::Man, Pod::ParseLink, Pod::ParseUtils, Pod::Parser, Pod::Perldoc, Pod::Perldoc::BaseTo, Pod::Perldoc::GetOptsOO, Pod::Perldoc::ToANSI, Pod::Perldoc::ToChecker, Pod::Perldoc::ToMan, Pod::Perldoc::ToNroff, Pod::Perldoc::ToPod, Pod::Perldoc::ToRtf, Pod::Perldoc::ToTerm, Pod::Perldoc::ToText, Pod::Perldoc::ToTk, Pod::Perldoc::ToXml, Pod::PlainText, Pod::Select, Pod::Simple, Pod::Simple::Checker, Pod::Simple::Debug, Pod::Simple::DumpAsText, Pod::Simple::DumpAsXML, Pod::Simple::HTML, Pod::Simple::HTMLBatch, Pod::Simple::LinkSection, Pod::Simple::Methody, Pod::Simple::PullParser, Pod::Simple::PullParserEndToken, Pod::Simple::PullParserStartToken, Pod::Simple::PullParserTextToken, Pod::Simple::PullParserToken, Pod::Simple::RTF, Pod::Simple::Search, Pod::Simple::SimpleTree, Pod::Simple::Subclassing, Pod::Simple::Text, Pod::Simple::TextContent, Pod::Simple::XHTML, Pod::Simple::XMLOutStream, Pod::Text, Pod::Text::Color, Pod::Text::Termcap, Pod::Usage, SDBM_File, Safe, Scalar::Util, Search::Dict, SelectSaver, SelfLoader, Storable, Sub::Util, Symbol, Sys::Hostname, Sys::Syslog, Sys::Syslog::Win32, TAP::Base, TAP::Formatter::Base, TAP::Formatter::Color, TAP::Formatter::Console, TAP::Formatter::Console::ParallelSession, TAP::Formatter::Console::Session, TAP::Formatter::File, TAP::Formatter::File::Session, TAP::Formatter::Session, TAP::Harness, TAP::Harness::Env, TAP::Object, TAP::Parser, TAP::Parser::Aggregator, TAP::Parser::Grammar, TAP::Parser::Iterator, TAP::Parser::Iterator::Array, TAP::Parser::Iterator::Process, TAP::Parser::Iterator::Stream, TAP::Parser::IteratorFactory, TAP::Parser::Multiplexer, TAP::Parser::Result, TAP::Parser::Result::Bailout, TAP::Parser::Result::Comment, TAP::Parser::Result::Plan, TAP::Parser::Result::Pragma, TAP::Parser::Result::Test, TAP::Parser::Result::Unknown, TAP::Parser::Result::Version, TAP::Parser::Result::YAML, TAP::Parser::ResultFactory, TAP::Parser::Scheduler, TAP::Parser::Scheduler::Job, TAP::Parser::Scheduler::Spinner, TAP::Parser::Source, TAP::Parser::SourceHandler, TAP::Parser::SourceHandler::Executable, TAP::Parser::SourceHandler::File, TAP::Parser::SourceHandler::Handle, TAP::Parser::SourceHandler::Perl, TAP::Parser::SourceHandler::RawTAP, TAP::Parser::YAMLish::Reader, TAP::Parser::YAMLish::Writer, Term::ANSIColor, Term::Cap, Term::Complete, Term::ReadLine, Test, Test::Builder, Test::Builder::IO::Scalar, Test::Builder::Module, Test::Builder::Tester, Test::Builder::Tester::Color, Test::Harness, Test::Harness::Beyond, Test::More, Test::Simple, Test::Tester, Test::Tester::Capture, Test::Tester::CaptureRunner, Test::Tutorial, Test::use::ok, Text::Abbrev, Text::Balanced, Text::ParseWords, Text::Tabs, Text::Wrap, Thread, Thread::Queue, Thread::Semaphore, Tie::Array, Tie::File, Tie::Handle, Tie::Hash, Tie::Hash::NamedCapture, Tie::Memoize, Tie::RefHash, Tie::Scalar, Tie::StdHandle, Tie::SubstrHash, Time::HiRes, Time::Local, Time::Piece, Time::Seconds, Time::gmtime, Time::localtime, Time::tm, UNIVERSAL, Unicode::Collate, Unicode::Collate::CJK::Big5, Unicode::Collate::CJK::GB2312, Unicode::Collate::CJK::JISX0208, Unicode::Collate::CJK::Korean, Unicode::Collate::CJK::Pinyin, Unicode::Collate::CJK::Stroke, Unicode::Collate::CJK::Zhuyin, Unicode::Collate::Locale, Unicode::Normalize, Unicode::UCD, User::grent, User::pwent, VMS::DCLsym, VMS::Filespec, VMS::Stdio, Win32, Win32API::File, Win32CORE, XS::APItest, XS::Typemap, XSLoader, autodie::Scope::Guard, autodie::Scope::GuardStack, autodie::ScopeUtil, version::Internals
Extension Modules
CPAN
Africa South Africa
Asia China, Hong Kong, India, Indonesia, Japan, Republic of Korea, Russia, Singapore, Taiwan, Thailand, Turkey
Central America Costa Rica
Europe Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Malta, Netherlands, Norway, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom
North America Bahamas, Canada, Mexico, United States, Alabama, Arizona, California, Florida, Idaho, Illinois, Indiana, Massachusetts, Michigan, Minnesota, New Jersey, New York, North Carolina, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia, Washington, Wisconsin
Oceania Australia, New Zealand
South America Argentina, Brazil, Chile, Colombia
RSYNC Mirrors
Modules: Creation, Use, and Abuse
Guidelines for Module Creation
Guidelines for Converting Perl 4 Library Scripts into Modules
Guidelines for Reusing Application Code
NOTE

    perlmodstyle - Perl module style guide

INTRODUCTION
QUICK CHECKLIST
Before you start
The API
Stability
Documentation
Release considerations
BEFORE YOU START WRITING A MODULE
Has it been done before?
Do one thing and do it well
What’s in a name?
Get feedback before publishing
DESIGNING AND WRITING YOUR MODULE
To OO or not to OO?
Designing your API Write simple routines to do simple things, Separate functionality from output, Provide sensible shortcuts and defaults, Naming conventions, Parameter passing
Strictness and warnings
Backwards compatibility
Error handling and messages
DOCUMENTING YOUR MODULE
POD
README, INSTALL, release notes, changelogs perl Makefile.PL, make, make test, make install, perl Build.PL, perl Build, perl Build test, perl Build install
RELEASE CONSIDERATIONS
Version numbering
Pre-requisites
Testing
Packaging
Licensing
COMMON PITFALLS
Reinventing the wheel
Trying to do too much
Inappropriate documentation
SEE ALSO perlstyle, perlnewmod, perlpod, podchecker, Packaging Tools, Testing tools, http://pause.perl.org/, Any good book on software engineering
AUTHOR

    perlmodinstall - Installing CPAN Modules

DESCRIPTION
PREAMBLE <B>DECOMPRESSB> the file, <B>UNPACKB> the file into a directory, <B>BUILDB> the module (sometimes unnecessary), <B>INSTALLB> the module
PORTABILITY
HEY
AUTHOR
COPYRIGHT

    perlnewmod - preparing a new module for distribution

DESCRIPTION
Warning
What should I make into a module?
Step-by-step: Preparing the ground Look around, Check it’s new, Discuss the need, Choose a name, Check again
Step-by-step: Making the module Start with module-starter or h2xs, Use strict and warnings, Use Carp, Use Exporter - wisely!, Use plain old documentation, Write tests, Write the README
Step-by-step: Distributing your module Get a CPAN user ID, perl Makefile.PL; make test; make dist, Upload the tarball, Announce to the modules list, Announce to clpa, Fix bugs!
AUTHOR
SEE ALSO

    perlpragma - how to write a user pragma

DESCRIPTION
A basic example
Key naming
Implementation details

    perlutil - utilities packaged with the Perl distribution

DESCRIPTION
LIST OF UTILITIES
Documentation perldoc, pod2man and pod2text, pod2html, pod2usage, podselect, podchecker, splain, roffitall
Converters
Administration libnetcfg, perlivp
Development perlbug, perlthanks, h2ph, c2ph and pstruct, h2xs, enc2xs, xsubpp, prove, corelist
General tools piconv, ptar, ptardiff, ptargrep, shasum, zipdetails
Installation cpan, instmodsh
SEE ALSO

    perlfilter - Source Filters

DESCRIPTION
CONCEPTS
USING FILTERS
WRITING A SOURCE FILTER
WRITING A SOURCE FILTER IN C <B>Decryption FiltersB>
CREATING A SOURCE FILTER AS A SEPARATE EXECUTABLE
WRITING A SOURCE FILTER IN PERL
USING CONTEXT: THE DEBUG FILTER
CONCLUSION
LIMITATIONS
THINGS TO LOOK OUT FOR Some Filters Clobber the DATA Handle
REQUIREMENTS
AUTHOR
Copyrights

    perldtrace - Perl’s support for DTrace

SYNOPSIS
DESCRIPTION
HISTORY
PROBES sub-entry(SUBNAME, FILE, LINE, PACKAGE), sub-return(SUBNAME, FILE, LINE, PACKAGE), phase-change(NEWPHASE, OLDPHASE), op-entry(OPNAME), loading-file(FILENAME), loaded-file(FILENAME)
EXAMPLES Most frequently called functions, Trace function calls, Function calls during interpreter cleanup, System calls at compile time, Perl functions that execute the most opcodes
REFERENCES DTrace Dynamic Tracing Guide, DTrace: Dynamic Tracing in Oracle Solaris, Mac OS X and FreeBSD
SEE ALSO Devel::DTrace::Provider
AUTHORS

    perlglossary - Perl Glossary

VERSION
DESCRIPTION
A accessor methods, actual arguments, address operator, algorithm, alias, alphabetic, alternatives, anonymous, application, architecture, argument, ARGV, arithmetical operator, array, array context, Artistic License, ASCII, assertion, assignment, assignment operator, associative array, associativity, asynchronous, atom, atomic operation, attribute, autogeneration, autoincrement, autoload, autosplit, autovivification, AV, awk
B backreference, backtracking, backward compatibility, bareword, base class, big-endian, binary, binary operator, bind, bit, bit shift, bit string, bless, block, BLOCK, block buffering, Boolean, Boolean context, breakpoint, broadcast, BSD, bucket, buffer, built-in, bundle, byte, bytecode
C C, cache, callback, call by reference, call by value, canonical, capture variables, capturing, cargo cult, case, casefolding, casemapping, character, character class, character property, circumfix operator, class, class method, client, closure, cluster, CODE, code generator, codepoint, code subpattern, collating sequence, co-maintainer, combining character, command, command buffering, command-line arguments, command name, comment, compilation unit, compile, compile phase, compiler, compile time, composer, concatenation, conditional, connection, construct, constructor, context, continuation, core dump, CPAN, C preprocessor, cracker, currently selected output channel, current package, current working directory, CV
D dangling statement, datagram, data structure, data type, DBM, declaration, declarator, decrement, default, defined, delimiter, dereference, derived class, descriptor, destroy, destructor, device, directive, directory, directory handle, discipline, dispatch, distribution, dual-lived, dweomer, dwimmer, dynamic scoping
E eclectic, element, embedding, empty subclass test, encapsulation, endian, en passant, environment, environment variable, EOF, errno, error, escape sequence, exception, exception handling, exec, executable file, execute, execute bit, exit status, exploit, export, expression, extension
F false, FAQ, fatal error, feeping creaturism, field, FIFO, file, file descriptor, fileglob, filehandle, filename, filesystem, file test operator, filter, first-come, flag, floating point, flush, FMTEYEWTK, foldcase, fork, formal arguments, format, freely available, freely redistributable, freeware, function, funny character
G garbage collection, GID, glob, global, global destruction, glue language, granularity, grapheme, greedy, grep, group, GV
H hacker, handler, hard reference, hash, hash table, header file, here document, hexadecimal, home directory, host, hubris, HV
I identifier, impatience, implementation, import, increment, indexing, indirect filehandle, indirection, indirect object, indirect object slot, infix, inheritance, instance, instance data, instance method, instance variable, integer, interface, interpolation, interpreter, invocant, invocation, I/O, IO, I/O layer, IPA, IP, IPC, is-a, iteration, iterator, IV
J JAPH
K key, keyword
L label, laziness, leftmost longest, left shift, lexeme, lexer, lexical analysis, lexical scoping, lexical variable, library, LIFO, line, linebreak, line buffering, line number, link, LIST, list, list context, list operator, list value, literal, little-endian, local, logical operator, lookahead, lookbehind, loop, loop control statement, loop label, lowercase, lvaluable, lvalue, lvalue modifier
M magic, magical increment, magical variables, Makefile, man, manpage, matching, member data, memory, metacharacter, metasymbol, method, method resolution order, minicpan, minimalism, mode, modifier, module, modulus, mojibake, monger, mortal, mro, multidimensional array, multiple inheritance
N named pipe, namespace, NaN, network address, newline, NFS, normalization, null character, null list, null string, numeric context, numification, NV, nybble
O object, octal, offset, one-liner, open source software, operand, operating system, operator, operator overloading, options, ordinal, overloading, overriding, owner
P package, pad, parameter, parent class, parse tree, parsing, patch, PATH, pathname, pattern, pattern matching, PAUSE, Perl mongers, permission bits, Pern, pipe, pipeline, platform, pod, pod command, pointer, polymorphism, port, portable, porter, possessive, POSIX, postfix, pp, pragma, precedence, prefix, preprocessing, primary maintainer, procedure, process, program, program generator, progressive matching, property, protocol, prototype, pseudofunction, pseudohash, pseudoliteral, public domain, pumpkin, pumpking, PV
Q qualified, quantifier
R race condition, readable, reaping, record, recursion, reference, referent, regex, regular expression, regular expression modifier, regular file, relational operator, reserved words, return value, RFC, right shift, role, root, RTFM, run phase, runtime, runtime pattern, RV, rvalue
S sandbox, scalar, scalar context, scalar literal, scalar value, scalar variable, scope, scratchpad, script, script kiddie, sed, semaphore, separator, serialization, server, service, setgid, setuid, shared memory, shebang, shell, side effects, sigil, signal, signal handler, single inheritance, slice, slurp, socket, soft reference, source filter, stack, standard, standard error, standard input, standard I/O, Standard Library, standard output, statement, statement modifier, static, static method, static scoping, static variable, stat structure, status, STDERR, STDIN, STDIO, STDOUT, stream, string, string context, stringification, struct, structure, subclass, subpattern, subroutine, subscript, substitution, substring, superclass, superuser, SV, switch, switch cluster, switch statement, symbol, symbolic debugger, symbolic link, symbolic reference, symbol table, synchronous, syntactic sugar, syntax, syntax tree, syscall
T taint checks, tainted, taint mode, TCP, term, terminator, ternary, text, thread, tie, titlecase, TMTOWTDI, token, tokener, tokenizing, toolbox approach, topic, transliterate, trigger, trinary, troff, true, truncating, type, type casting, typedef, typed lexical, typeglob, typemap
U UDP, UID, umask, unary operator, Unicode, Unix, uppercase
V value, variable, variable interpolation, variadic, vector, virtual, void context, v-string
W warning, watch expression, weak reference, whitespace, word, working directory, wrapper, WYSIWYG
X XS, XSUB
Y yacc
Z zero width, zombie
AUTHOR AND COPYRIGHT

    perlembed - how to embed perl in your C program

DESCRIPTION
PREAMBLE <B>Use C from Perl?B>, <B>Use a Unix program from Perl?B>, <B>Use Perl from Perl?B>, <B>Use C from C?B>, <B>Use Perl from C?B>
ROADMAP
Compiling your C program
Adding a Perl interpreter to your C program
Calling a Perl subroutine from your C program
Evaluating a Perl statement from your C program
Performing Perl pattern matches and substitutions from your C program
Fiddling with the Perl stack from your C program
Maintaining a persistent interpreter
Execution of END blocks
$0 assignments
Maintaining multiple interpreter instances
Using Perl modules, which themselves use C libraries, from your C program
Using embedded Perl with POSIX locales
Hiding Perl_
MORAL
AUTHOR
COPYRIGHT

    perldebguts - Guts of Perl debugging

DESCRIPTION
Debugger Internals
Writing Your Own Debugger
Frame Listing Output Examples
Debugging Regular Expressions
Compile-time Output anchored STRING at POS, floating STRING at POS1..POS2, matching floating/anchored, minlen, stclass TYPE, noscan, isall, GPOS, plus, implicit, with eval, anchored(TYPE)
Types of Nodes
Run-time Output
Debugging Perl Memory Usage
Using $ENV{PERL_DEBUG_MSTATS} buckets SMALLEST(APPROX)..GREATEST(APPROX), Free/Used, Total sbrk(): SBRKed/SBRKs:CONTINUOUS, pad: 0, heads: 2192, chain: 0, tail: 6144
SEE ALSO

    perlxstut - Tutorial for writing XSUBs

DESCRIPTION
SPECIAL NOTES
make
Version caveat
Dynamic Loading versus Static Loading
Threads and PERL_NO_GET_CONTEXT
TUTORIAL
EXAMPLE 1
EXAMPLE 2
What has gone on?
Writing good test scripts
EXAMPLE 3
What’s new here?
Input and Output Parameters
The XSUBPP Program
The TYPEMAP file
Warning about Output Arguments
EXAMPLE 4
What has happened here?
Anatomy of .xs file
Getting the fat out of XSUBs
More about XSUB arguments
The Argument Stack
Extending your Extension
Documenting your Extension
Installing your Extension
EXAMPLE 5
New Things in this Example
EXAMPLE 6
New Things in this Example
EXAMPLE 7 (Coming Soon)
EXAMPLE 8 (Coming Soon)
EXAMPLE 9 Passing open files to XSes
Troubleshooting these Examples
See also
Author
Last Changed

    perlxs - XS language reference manual

DESCRIPTION
Introduction
On The Road
The Anatomy of an XSUB
The Argument Stack
The RETVAL Variable
Returning SVs, AVs and HVs through RETVAL
The MODULE Keyword
The PACKAGE Keyword
The PREFIX Keyword
The OUTPUT: Keyword
The NO_OUTPUT Keyword
The CODE: Keyword
The INIT: Keyword
The NO_INIT Keyword
The TYPEMAP: Keyword
Initializing Function Parameters
Default Parameter Values
The PREINIT: Keyword
The SCOPE: Keyword
The INPUT: Keyword
The IN/OUTLIST/IN_OUTLIST/OUT/IN_OUT Keywords
The length(NAME) Keyword
Variable-length Parameter Lists
The C_ARGS: Keyword
The PPCODE: Keyword
Returning Undef And Empty Lists
The REQUIRE: Keyword
The CLEANUP: Keyword
The POSTCALL: Keyword
The BOOT: Keyword
The VERSIONCHECK: Keyword
The PROTOTYPES: Keyword
The PROTOTYPE: Keyword
The ALIAS: Keyword
The OVERLOAD: Keyword
The FALLBACK: Keyword
The INTERFACE: Keyword
The INTERFACE_MACRO: Keyword
The INCLUDE: Keyword
The INCLUDE_COMMAND: Keyword
The CASE: Keyword
The EXPORT_XSUB_SYMBOLS: Keyword
The & Unary Operator
Inserting POD, Comments and C Preprocessor Directives
Using XS With C++
Interface Strategy
Perl Objects And C Structures
Safely Storing Static Data in XS MY_CXT_KEY, typedef my_cxt_t, START_MY_CXT, MY_CXT_INIT, dMY_CXT, MY_CXT, aMY_CXT/pMY_CXT, MY_CXT_CLONE, MY_CXT_INIT_INTERP(my_perl), dMY_CXT_INTERP(my_perl)
Thread-aware system interfaces
EXAMPLES
CAVEATS Non-locale-aware XS code, Locale-aware XS code
XS VERSION
AUTHOR

    perlxstypemap - Perl XS C/Perl type mapping

DESCRIPTION
Anatomy of a typemap
The Role of the typemap File in Your Distribution
Sharing typemaps Between CPAN Distributions
Writing typemap Entries
Full Listing of Core Typemaps T_SV, T_SVREF, T_SVREF_FIXED, T_AVREF, T_AVREF_REFCOUNT_FIXED, T_HVREF, T_HVREF_REFCOUNT_FIXED, T_CVREF, T_CVREF_REFCOUNT_FIXED, T_SYSRET, T_UV, T_IV, T_INT, T_ENUM, T_BOOL, T_U_INT, T_SHORT, T_U_SHORT, T_LONG, T_U_LONG, T_CHAR, T_U_CHAR, T_FLOAT, T_NV, T_DOUBLE, T_PV, T_PTR, T_PTRREF, T_PTROBJ, T_REF_IV_REF, T_REF_IV_PTR, T_PTRDESC, T_REFREF, T_REFOBJ, T_OPAQUEPTR, T_OPAQUE, Implicit array, T_PACKED, T_PACKEDARRAY, T_DATAUNIT, T_CALLBACK, T_ARRAY, T_STDIO, T_INOUT, T_IN, T_OUT

    perlclib - Internal replacements for standard C library functions

DESCRIPTION
Conventions t, p, n, s
File Operations
File Input and Output
File Positioning
Memory Management and String Handling
Character Class Tests
stdlib.h functions
Miscellaneous functions
SEE ALSO

    perlguts - Introduction to the Perl API

DESCRIPTION
Variables
Datatypes
What is an ‘‘IV’’?
Working with SVs
Offsets
What’s Really Stored in an SV?
Working with AVs
Working with HVs
Hash API Extensions
AVs, HVs and undefined values
References
Blessed References and Class Objects
Creating New Variables GV_ADDMULTI, GV_ADDWARN
Reference Counts and Mortality
Stashes and Globs
Double-Typed SVs
Read-Only Values
Copy on Write
Magic Variables
Assigning Magic
Magic Virtual Tables
Finding Magic
Understanding the Magic of Tied Hashes and Arrays
Localizing changes SAVEINT(int i), SAVEIV(IV i), SAVEI32(I32 i), SAVELONG(long i), SAVESPTR(s), SAVEPPTR(p), SAVEFREESV(SV *sv), SAVEMORTALIZESV(SV *sv), SAVEFREEOP(OP *op), SAVEFREEPV(p), SAVECLEARSV(SV *sv), SAVEDELETE(HV *hv, char *key, I32 length), SAVEDESTRUCTOR(DESTRUCTORFUNC_NOCONTEXT_t f, void *p), SAVEDESTRUCTOR_X(DESTRUCTORFUNC_t f, void *p), SAVESTACK_POS(), SV* save_scalar(GV *gv), AV* save_ary(GV *gv), HV* save_hash(GV *gv), void save_item(SV *item), void save_list(SV **sarg, I32 maxsarg), SV* save_svref(SV **sptr), void save_aptr(AV **aptr), void save_hptr(HV **hptr)
Subroutines
XSUBs and the Argument Stack
Autoloading with XSUBs
Calling Perl Routines from within C Programs
Putting a C value on Perl stack
Scratchpads
Scratchpads and recursion
Memory Allocation
Allocation
Reallocation
Moving
PerlIO
Compiled code
Code tree
Examining the tree
Compile pass 1: check routines
Compile pass 1a: constant folding
Compile pass 2: context propagation
Compile pass 3: peephole optimization
Pluggable runops
Compile-time scope hooks void bhk_start(pTHX_ int full), void bhk_pre_end(pTHX_ OP **o), void bhk_post_end(pTHX_ OP **o), void bhk_eval(pTHX_ OP *const o)
Examining internal data structures with the dump functions
How multiple interpreters and concurrency are supported
Background and PERL_IMPLICIT_CONTEXT
So what happened to dTHR?
How do I use all this in extensions?
Should I do anything special if I call perl from multiple threads?
Future Plans and PERL_IMPLICIT_SYS
Internal Functions A, p, d, s, n, r, f, M, o, x, m, X, E, b, others
Formatted Printing of IVs, UVs, and NVs
Pointer-To-Integer and Integer-To-Pointer
Exception Handling
Source Documentation
Backwards compatibility
Unicode Support
What <B>isB> Unicode, anyway?
How can I recognise a UTF-8 string?
How does UTF-8 represent Unicode characters?
How does Perl store UTF-8 strings?
How do I convert a string to UTF-8?
How do I compare strings?
Is there anything else I need to know?
Custom Operators xop_name, xop_desc, xop_class, OA_BASEOP, OA_UNOP, OA_BINOP, OA_LOGOP, OA_LISTOP, OA_PMOP, OA_SVOP, OA_PADOP, OA_PVOP_OR_SVOP, OA_LOOP, OA_COP, xop_peep
AUTHORS
SEE ALSO

    perlcall - Perl calling conventions from C

DESCRIPTION An Error Handler, An Event-Driven Program
THE CALL_ FUNCTIONS call_sv, call_pv, call_method, call_argv
FLAG VALUES
G_VOID
G_SCALAR
G_ARRAY
G_DISCARD
G_NOARGS
G_EVAL
G_KEEPERR
Determining the Context
EXAMPLES
No Parameters, Nothing Returned
Passing Parameters
Returning a Scalar
Returning a List of Values
Returning a List in a Scalar Context
Returning Data from Perl via the Parameter List
Using G_EVAL
Using G_KEEPERR
Using call_sv
Using call_argv
Using call_method
Using GIMME_V
Using Perl to Dispose of Temporaries
Strategies for Storing Callback Context Information 1. Ignore the problem - Allow only 1 callback, 2. Create a sequence of callbacks - hard wired limit, 3. Use a parameter to map to the Perl callback
Alternate Stack Manipulation
Creating and Calling an Anonymous Subroutine in C
LIGHTWEIGHT CALLBACKS
SEE ALSO
AUTHOR
DATE

    perlmroapi - Perl method resolution plugin interface

DESCRIPTION resolve, name, length, kflags, hash
Callbacks
Caching
Examples
AUTHORS

    perlreapi - Perl regular expression plugin interface

DESCRIPTION
Callbacks
comp /m - RXf_PMf_MULTILINE, /s - RXf_PMf_SINGLELINE, /i - RXf_PMf_FOLD, /x - RXf_PMf_EXTENDED, /p - RXf_PMf_KEEPCOPY, Character set, RXf_SPLIT, RXf_SKIPWHITE, RXf_START_ONLY, RXf_WHITE, RXf_NULL, RXf_NO_INPLACE_SUBST
exec rx, sv, strbeg, strend, stringarg, minend, data, flags
intuit
checkstr
free
Numbered capture callbacks
Named capture callbacks
qr_package
dupe
op_comp
The REGEXP structure
engine
mother_re
extflags
minlen minlenret
gofs
substrs
nparens, lastparen, and lastcloseparen
intflags
pprivate
swap
offs
precomp prelen
paren_names
substrs
subbeg sublen saved_copy suboffset subcoffset
wrapped wraplen
seen_evals
refcnt
HISTORY
AUTHORS
LICENSE

    perlreguts - Description of the Perl regular expression engine.

DESCRIPTION
OVERVIEW
A quick note on terms
What is a regular expression engine?
Structure of a Regexp Program regnode_1, regnode_2, regnode_string, regnode_charclass, regnode_charclass_posixl
Process Overview A. Compilation, 1. Parsing for size, 2. Parsing for construction, 3. Peep-hole optimisation and analysis, B. Execution, 4. Start position and no-match optimisations, 5. Program execution
Compilation anchored fixed strings, floating fixed strings, minimum and maximum length requirements, start class, Beginning/End of line positions
Execution
MISCELLANEOUS
Unicode and Localisation Support
Base Structures offsets, regstclass, data, program
SEE ALSO
AUTHOR
LICENCE
REFERENCES

    perlapi - autogenerated documentation for the perl public API

DESCRIPTION
‘‘Gimme’’ Values GIMME , GIMME_V , G_ARRAY , G_DISCARD , G_EVAL , G_NOARGS , G_SCALAR , G_VOID
Array Manipulation Functions AvFILL , av_clear , av_create_and_push , av_create_and_unshift_one , av_delete , av_exists , av_extend , av_fetch , av_fill , av_len , av_make , av_pop , av_push , av_shift , av_store , av_tindex , av_top_index , av_undef , av_unshift , get_av , newAV , sortsv , sortsv_flags
xsubpp variables and internal functions ax , CLASS , dAX , dAXMARK , dITEMS , dUNDERBAR , dXSARGS , dXSI32 , items , ix , RETVAL , ST , THIS , UNDERBAR , XS , XS_EXTERNAL , XS_INTERNAL
Callback Functions call_argv , call_method , call_pv , call_sv , ENTER , eval_pv , eval_sv , FREETMPS , LEAVE , SAVETMPS
Character case changing toFOLD , toFOLD_uni , toFOLD_utf8 , toLOWER , toLOWER_L1 , toLOWER_LC , toLOWER_uni , toLOWER_utf8 , toTITLE , toTITLE_uni , toTITLE_utf8 , toUPPER , toUPPER_uni , toUPPER_utf8
Character classification isALPHA , isALPHANUMERIC , isASCII , isBLANK , isCNTRL , isDIGIT , isGRAPH , isIDCONT , isIDFIRST , isLOWER , isOCTAL , isPRINT , isPSXSPC , isPUNCT , isSPACE , isUPPER , isWORDCHAR , isXDIGIT
Cloning an interpreter perl_clone
Compile-time scope hooks BhkDISABLE , BhkENABLE , BhkENTRY_set , blockhook_register
COP Hint Hashes cophh_2hv , cophh_copy , cophh_delete_pv , cophh_delete_pvn , cophh_delete_pvs , cophh_delete_sv , cophh_fetch_pv , cophh_fetch_pvn , cophh_fetch_pvs , cophh_fetch_sv , cophh_free , cophh_new_empty , cophh_store_pv , cophh_store_pvn , cophh_store_pvs , cophh_store_sv
COP Hint Reading cop_hints_2hv , cop_hints_fetch_pv , cop_hints_fetch_pvn , cop_hints_fetch_pvs , cop_hints_fetch_sv
Custom Operators custom_op_register , custom_op_xop , XopDISABLE , XopENABLE , XopENTRY , XopENTRYCUSTOM , XopENTRY_set , XopFLAGS
CV Manipulation Functions caller_cx , CvSTASH , find_runcv , get_cv , get_cvn_flags
Debugging Utilities dump_all , dump_packsubs , op_dump , sv_dump
Display and Dump functions pv_display , pv_escape , pv_pretty
Embedding Functions cv_clone , cv_name , cv_undef , find_rundefsv , find_rundefsvoffset , intro_my , load_module , newPADNAMELIST , newPADNAMEouter , newPADNAMEpvn , nothreadhook , padnamelist_fetch , padnamelist_store , pad_add_anon , pad_add_name_pv , pad_add_name_pvn , pad_add_name_sv , pad_alloc , pad_findmy_pv , pad_findmy_pvn , pad_findmy_sv , pad_setsv , pad_sv , pad_tidy , perl_alloc , perl_construct , perl_destruct , perl_free , perl_parse , perl_run , require_pv
Exception Handling (simple) Macros dXCPT , XCPT_CATCH , XCPT_RETHROW , XCPT_TRY_END , XCPT_TRY_START
Global Variables PL_check , PL_keyword_plugin
GV Functions GvAV , GvCV , GvHV , GvSV , gv_const_sv , gv_fetchmeth , gv_fetchmethod_autoload , gv_fetchmeth_autoload , gv_fetchmeth_pv , gv_fetchmeth_pvn , gv_fetchmeth_pvn_autoload , gv_fetchmeth_pv_autoload , gv_fetchmeth_sv , gv_fetchmeth_sv_autoload , gv_init , gv_init_pv , gv_init_pvn , gv_init_sv , gv_stashpv , gv_stashpvn , gv_stashpvs , gv_stashsv , setdefout
Handy Values Nullav , Nullch , Nullcv , Nullhv , Nullsv
Hash Manipulation Functions cop_fetch_label , cop_store_label , get_hv , HEf_SVKEY , HeHASH , HeKEY , HeKLEN , HePV , HeSVKEY , HeSVKEY_force , HeSVKEY_set , HeUTF8 , HeVAL , HvENAME , HvENAMELEN , HvENAMEUTF8 , HvNAME , HvNAMELEN , HvNAMEUTF8 , hv_assert , hv_clear , hv_clear_placeholders , hv_copy_hints_hv , hv_delete , hv_delete_ent , hv_exists , hv_exists_ent , hv_fetch , hv_fetchs , hv_fetch_ent , hv_fill , hv_iterinit , hv_iterkey , hv_iterkeysv , hv_iternext , hv_iternextsv , hv_iternext_flags , hv_iterval , hv_magic , hv_scalar , hv_store , hv_stores , hv_store_ent , hv_undef , newHV
Hook manipulation wrap_op_checker
Lexer interface lex_bufutf8 , lex_discard_to , lex_grow_linestr , lex_next_chunk , lex_peek_unichar , lex_read_space , lex_read_to , lex_read_unichar , lex_start , lex_stuff_pv , lex_stuff_pvn , lex_stuff_pvs , lex_stuff_sv , lex_unstuff , parse_arithexpr , parse_barestmt , parse_block , parse_fullexpr , parse_fullstmt , parse_label , parse_listexpr , parse_stmtseq , parse_termexpr , PL_parser , PL_parser->bufend , PL_parser->bufptr , PL_parser->linestart , PL_parser->linestr
Locale-related functions and macros DECLARATION_FOR_LC_NUMERIC_MANIPULATION , RESTORE_LC_NUMERIC , STORE_LC_NUMERIC_FORCE_TO_UNDERLYING , STORE_LC_NUMERIC_SET_TO_NEEDED , sync_locale
Magical Functions mg_clear , mg_copy , mg_find , mg_findext , mg_free , mg_free_type , mg_get , mg_length , mg_magical , mg_set , SvGETMAGIC , SvLOCK , SvSETMAGIC , SvSetMagicSV , SvSetMagicSV_nosteal , SvSetSV , SvSetSV_nosteal , SvSHARE , SvUNLOCK
Memory Management Copy , CopyD , Move , MoveD , Newx , Newxc , Newxz , Poison , PoisonFree , PoisonNew , PoisonWith , Renew , Renewc , Safefree , savepv , savepvn , savepvs , savesharedpv , savesharedpvn , savesharedpvs , savesharedsvpv , savesvpv , StructCopy , Zero , ZeroD
Miscellaneous Functions dump_c_backtrace , fbm_compile , fbm_instr , foldEQ , foldEQ_locale , form , getcwd_sv , get_c_backtrace_dump , ibcmp , ibcmp_locale , is_safe_syscall , memEQ , memNE , mess , mess_sv , my_snprintf , my_sprintf , my_strlcat , my_strlcpy , my_vsnprintf , PERL_SYS_INIT , PERL_SYS_INIT3 , PERL_SYS_TERM , quadmath_format_needed , quadmath_format_single , READ_XDIGIT , strEQ , strGE , strGT , strLE , strLT , strNE , strnEQ , strnNE , sv_destroyable , sv_nosharing , vmess
MRO Functions mro_get_linear_isa , mro_method_changed_in , mro_register
Multicall Functions dMULTICALL , MULTICALL , POP_MULTICALL , PUSH_MULTICALL
Numeric functions grok_bin , grok_hex , grok_infnan , grok_number , grok_number_flags , grok_numeric_radix , grok_oct , isinfnan , Perl_signbit , scan_bin , scan_hex , scan_oct
Obsolete backwards compatibility functions custom_op_desc , custom_op_name , gv_fetchmethod , is_utf8_char , is_utf8_char_buf , pack_cat , pad_compname_type , sv_2pvbyte_nolen , sv_2pvutf8_nolen , sv_2pv_nolen , sv_catpvn_mg , sv_catsv_mg , sv_force_normal , sv_iv , sv_nolocking , sv_nounlocking , sv_nv , sv_pv , sv_pvbyte , sv_pvbyten , sv_pvn , sv_pvutf8 , sv_pvutf8n , sv_taint , sv_unref , sv_usepvn , sv_usepvn_mg , sv_uv , unpack_str , utf8_to_uvchr , utf8_to_uvuni
Optree construction newASSIGNOP , newBINOP , newCONDOP , newDEFSVOP , newFOROP , newGIVENOP , newGVOP , newLISTOP , newLOGOP , newLOOPEX , newLOOPOP , newMETHOP , newMETHOP_named , newNULLLIST , newOP , newPADOP , newPMOP , newPVOP , newRANGE , newSLICEOP , newSTATEOP , newSVOP , newUNOP , newUNOP_AUX , newWHENOP , newWHILEOP
Optree Manipulation Functions alloccopstash , block_end , block_start , ck_entersub_args_list , ck_entersub_args_proto , ck_entersub_args_proto_or_list , cv_const_sv , cv_get_call_checker , cv_set_call_checker , cv_set_call_checker_flags , LINKLIST , newCONSTSUB , newCONSTSUB_flags , newXS , OpHAS_SIBLING , OpLASTSIB_set , OpMAYBESIB_set , OpMORESIB_set , OpSIBLING , op_append_elem , op_append_list , OP_CLASS , op_contextualize , op_convert_list , OP_DESC , op_free , op_linklist , op_lvalue , OP_NAME , op_null , op_parent , op_prepend_elem , op_scope , op_sibling_splice , OP_TYPE_IS , OP_TYPE_IS_OR_WAS , rv2cv_op_cv
Pack and Unpack packlist , unpackstring
Pad Data Structures CvPADLIST , PadARRAY , PadlistARRAY , PadlistMAX , PadlistNAMES , PadlistNAMESARRAY , PadlistNAMESMAX , PadlistREFCNT , PadMAX , PadnameLEN , PadnamelistARRAY , PadnamelistMAX , PadnamelistREFCNT , PadnamelistREFCNT_dec , PadnamePV , PadnameREFCNT , PadnameREFCNT_dec , PadnameSV , PadnameUTF8 , pad_add_name_pvs , pad_findmy_pvs , pad_new , PL_comppad , PL_comppad_name , PL_curpad
Per-Interpreter Variables PL_modglobal , PL_na , PL_opfreehook , PL_peepp , PL_rpeepp , PL_sv_no , PL_sv_undef , PL_sv_yes
REGEXP Functions SvRX , SvRXOK
Stack Manipulation Macros dMARK , dORIGMARK , dSP , EXTEND , MARK , mPUSHi , mPUSHn , mPUSHp , mPUSHs , mPUSHu , mXPUSHi , mXPUSHn , mXPUSHp , mXPUSHs , mXPUSHu , ORIGMARK , POPi , POPl , POPn , POPp , POPpbytex , POPpx , POPs , PUSHi , PUSHMARK , PUSHmortal , PUSHn , PUSHp , PUSHs , PUSHu , PUTBACK , SP , SPAGAIN , XPUSHi , XPUSHmortal , XPUSHn , XPUSHp , XPUSHs , XPUSHu , XSRETURN , XSRETURN_EMPTY , XSRETURN_IV , XSRETURN_NO , XSRETURN_NV , XSRETURN_PV , XSRETURN_UNDEF , XSRETURN_UV , XSRETURN_YES , XST_mIV , XST_mNO , XST_mNV , XST_mPV , XST_mUNDEF , XST_mYES
SV Flags svtype , SVt_INVLIST , SVt_IV , SVt_NULL , SVt_NV , SVt_PV , SVt_PVAV , SVt_PVCV , SVt_PVFM , SVt_PVGV , SVt_PVHV , SVt_PVIO , SVt_PVIV , SVt_PVLV , SVt_PVMG , SVt_PVNV , SVt_REGEXP
SV Manipulation Functions boolSV , croak_xs_usage , get_sv , newRV_inc , newSVpadname , newSVpvn_utf8 , SvCUR , SvCUR_set , SvEND , SvGAMAGIC , SvGROW , SvIOK , SvIOKp , SvIOK_notUV , SvIOK_off , SvIOK_on , SvIOK_only , SvIOK_only_UV , SvIOK_UV , SvIsCOW , SvIsCOW_shared_hash , SvIV , SvIVX , SvIVx , SvIV_nomg , SvIV_set , SvLEN , SvLEN_set , SvMAGIC_set , SvNIOK , SvNIOKp , SvNIOK_off , SvNOK , SvNOKp , SvNOK_off , SvNOK_on , SvNOK_only , SvNV , SvNVX , SvNVx , SvNV_nomg , SvNV_set , SvOK , SvOOK , SvOOK_offset , SvPOK , SvPOKp , SvPOK_off , SvPOK_on , SvPOK_only , SvPOK_only_UTF8 , SvPV , SvPVbyte , SvPVbytex , SvPVbytex_force , SvPVbyte_force , SvPVbyte_nolen , SvPVutf8 , SvPVutf8x , SvPVutf8x_force , SvPVutf8_force , SvPVutf8_nolen , SvPVX , SvPVx , SvPV_force , SvPV_force_nomg , SvPV_nolen , SvPV_nomg , SvPV_nomg_nolen , SvPV_set , SvREFCNT , SvREFCNT_dec , SvREFCNT_dec_NN , SvREFCNT_inc , SvREFCNT_inc_NN , SvREFCNT_inc_simple , SvREFCNT_inc_simple_NN , SvREFCNT_inc_simple_void , SvREFCNT_inc_simple_void_NN , SvREFCNT_inc_void , SvREFCNT_inc_void_NN , SvROK , SvROK_off , SvROK_on , SvRV , SvRV_set , SvSTASH , SvSTASH_set , SvTAINT , SvTAINTED , SvTAINTED_off , SvTAINTED_on , SvTRUE , SvTRUE_nomg , SvTYPE , SvUOK , SvUPGRADE , SvUTF8 , SvUTF8_off , SvUTF8_on , SvUV , SvUVX , SvUVx , SvUV_nomg , SvUV_set , SvVOK , sv_catpvn_nomg , sv_catpv_nomg , sv_catsv_nomg , sv_derived_from , sv_derived_from_pv , sv_derived_from_pvn , sv_derived_from_sv , sv_does , sv_does_pv , sv_does_pvn , sv_does_sv , sv_report_used , sv_setsv_nomg , sv_utf8_upgrade_nomg
SV-Body Allocation looks_like_number , newRV_noinc , newSV , newSVhek , newSViv , newSVnv , newSVpv , newSVpvf , newSVpvn , newSVpvn_flags , newSVpvn_share , newSVpvs , newSVpvs_flags , newSVpvs_share , newSVpv_share , newSVrv , newSVsv , newSVuv , newSV_type , sv_2bool , sv_2bool_flags , sv_2cv , sv_2io , sv_2iv_flags , sv_2mortal , sv_2nv_flags , sv_2pvbyte , sv_2pvutf8 , sv_2pv_flags , sv_2uv_flags , sv_backoff , sv_bless , sv_catpv , sv_catpvf , sv_catpvf_mg , sv_catpvn , sv_catpvn_flags , sv_catpvs , sv_catpvs_flags , sv_catpvs_mg , sv_catpvs_nomg , sv_catpv_flags , sv_catpv_mg , sv_catsv , sv_catsv_flags , sv_chop , sv_clear , sv_cmp , sv_cmp_flags , sv_cmp_locale , sv_cmp_locale_flags , sv_collxfrm , sv_collxfrm_flags , sv_copypv_flags , sv_copypv_nomg , sv_dec , sv_dec_nomg , sv_eq , sv_eq_flags , sv_force_normal_flags , sv_free , sv_gets , sv_get_backrefs , sv_grow , sv_inc , sv_inc_nomg , sv_insert , sv_insert_flags , sv_isa , sv_isobject , sv_len , sv_len_utf8 , sv_magic , sv_magicext , sv_mortalcopy , sv_newmortal , sv_newref , sv_pos_b2u , sv_pos_b2u_flags , sv_pos_u2b , sv_pos_u2b_flags , sv_pvbyten_force , sv_pvn_force , sv_pvn_force_flags , sv_pvutf8n_force , sv_reftype , sv_replace , sv_reset , sv_rvweaken , sv_setiv , sv_setiv_mg , sv_setnv , sv_setnv_mg , sv_setpv , sv_setpvf , sv_setpvf_mg , sv_setpviv , sv_setpviv_mg , sv_setpvn , sv_setpvn_mg , sv_setpvs , sv_setpvs_mg , sv_setpv_mg , sv_setref_iv , sv_setref_nv , sv_setref_pv , sv_setref_pvn , sv_setref_pvs , sv_setref_uv , sv_setsv , sv_setsv_flags , sv_setsv_mg , sv_setuv , sv_setuv_mg , sv_tainted , sv_true , sv_unmagic , sv_unmagicext , sv_unref_flags , sv_untaint , sv_upgrade , sv_usepvn_flags , sv_utf8_decode , sv_utf8_downgrade , sv_utf8_encode , sv_utf8_upgrade , sv_utf8_upgrade_flags , sv_utf8_upgrade_flags_grow , sv_utf8_upgrade_nomg , sv_vcatpvf , sv_vcatpvfn , sv_vcatpvfn_flags , sv_vcatpvf_mg , sv_vsetpvf , sv_vsetpvfn , sv_vsetpvf_mg
Unicode Support bytes_cmp_utf8 , bytes_from_utf8 , bytes_to_utf8 , DO_UTF8 , foldEQ_utf8 , isUTF8_CHAR , is_ascii_string , is_invariant_string , is_utf8_string , is_utf8_string_loc , is_utf8_string_loclen , pv_uni_display , sv_cat_decode , sv_recode_to_utf8 , sv_uni_display , to_utf8_case , to_utf8_fold , to_utf8_lower , to_utf8_title , to_utf8_upper , utf8n_to_uvchr , utf8n_to_uvuni , UTF8SKIP , utf8_distance , utf8_hop , utf8_length , utf8_to_bytes , utf8_to_uvchr_buf , utf8_to_uvuni_buf , UVCHR_SKIP , uvchr_to_utf8 , uvchr_to_utf8_flags , uvoffuni_to_utf8_flags , uvuni_to_utf8_flags
Variables created by xsubpp and xsubpp internal functions newXSproto , XS_APIVERSION_BOOTCHECK , XS_VERSION , XS_VERSION_BOOTCHECK
Versioning new_version , prescan_version , scan_version , upg_version , vcmp , vnormal , vnumify , vstringify , vverify
Warning and Dieing croak , croak_no_modify , croak_sv , die , die_sv , vcroak , vwarn , warn , warn_sv
Undocumented functions GetVars , Gv_AMupdate , PerlIO_clearerr , PerlIO_close , PerlIO_context_layers , PerlIO_eof , PerlIO_error , PerlIO_fileno , PerlIO_fill , PerlIO_flush , PerlIO_get_base , PerlIO_get_bufsiz , PerlIO_get_cnt , PerlIO_get_ptr , PerlIO_read , PerlIO_seek , PerlIO_set_cnt , PerlIO_set_ptrcnt , PerlIO_setlinebuf , PerlIO_stderr , PerlIO_stdin , PerlIO_stdout , PerlIO_tell , PerlIO_unread , PerlIO_write , amagic_call , amagic_deref_call , any_dup , atfork_lock , atfork_unlock , av_arylen_p , av_iter_p , block_gimme , call_atexit , call_list , calloc , cast_i32 , cast_iv , cast_ulong , cast_uv , ck_warner , ck_warner_d , ckwarn , ckwarn_d , clone_params_del , clone_params_new , croak_memory_wrap , croak_nocontext , csighandler , cx_dump , cx_dup , cxinc , deb , deb_nocontext , debop , debprofdump , debstack , debstackptrs , delimcpy , despatch_signals , die_nocontext , dirp_dup , do_aspawn , do_binmode , do_close , do_gv_dump , do_gvgv_dump , do_hv_dump , do_join , do_magic_dump , do_op_dump , do_open , do_open9 , do_openn , do_pmop_dump , do_spawn , do_spawn_nowait , do_sprintf , do_sv_dump , doing_taint , doref , dounwind , dowantarray , dump_eval , dump_form , dump_indent , dump_mstats , dump_sub , dump_vindent , filter_add , filter_del , filter_read , foldEQ_latin1 , form_nocontext , fp_dup , fprintf_nocontext , free_global_struct , free_tmps , get_context , get_mstats , get_op_descs , get_op_names , get_ppaddr , get_vtbl , gp_dup , gp_free , gp_ref , gv_AVadd , gv_HVadd , gv_IOadd , gv_SVadd , gv_add_by_type , gv_autoload4 , gv_autoload_pv , gv_autoload_pvn , gv_autoload_sv , gv_check , gv_dump , gv_efullname , gv_efullname3 , gv_efullname4 , gv_fetchfile , gv_fetchfile_flags , gv_fetchpv , gv_fetchpvn_flags , gv_fetchsv , gv_fullname , gv_fullname3 , gv_fullname4 , gv_handler , gv_name_set , he_dup , hek_dup , hv_common , hv_common_key_len , hv_delayfree_ent , hv_eiter_p , hv_eiter_set , hv_free_ent , hv_ksplit , hv_name_set , hv_placeholders_get , hv_placeholders_set , hv_rand_set , hv_riter_p , hv_riter_set , ibcmp_utf8 , init_global_struct , init_stacks , init_tm , instr , is_lvalue_sub , leave_scope , load_module_nocontext , magic_dump , malloc , markstack_grow , mess_nocontext , mfree , mg_dup , mg_size , mini_mktime , moreswitches , mro_get_from_name , mro_get_private_data , mro_set_mro , mro_set_private_data , my_atof , my_atof2 , my_bcopy , my_bzero , my_chsize , my_cxt_index , my_cxt_init , my_dirfd , my_exit , my_failure_exit , my_fflush_all , my_fork , my_lstat , my_memcmp , my_memset , my_pclose , my_popen , my_popen_list , my_setenv , my_socketpair , my_stat , my_strftime , newANONATTRSUB , newANONHASH , newANONLIST , newANONSUB , newATTRSUB , newAVREF , newCVREF , newFORM , newGVREF , newGVgen , newGVgen_flags , newHVREF , newHVhv , newIO , newMYSUB , newPROG , newRV , newSUB , newSVREF , newSVpvf_nocontext , new_stackinfo , ninstr , op_refcnt_lock , op_refcnt_unlock , parser_dup , perl_alloc_using , perl_clone_using , pmop_dump , pop_scope , pregcomp , pregexec , pregfree , pregfree2 , printf_nocontext , ptr_table_fetch , ptr_table_free , ptr_table_new , ptr_table_split , ptr_table_store , push_scope , re_compile , re_dup_guts , re_intuit_start , re_intuit_string , realloc , reentrant_free , reentrant_init , reentrant_retry , reentrant_size , ref , reg_named_buff_all , reg_named_buff_exists , reg_named_buff_fetch , reg_named_buff_firstkey , reg_named_buff_nextkey , reg_named_buff_scalar , regclass_swash , regdump , regdupe_internal , regexec_flags , regfree_internal , reginitcolors , regnext , repeatcpy , rninstr , rsignal , rsignal_state , runops_debug , runops_standard , rvpv_dup , safesyscalloc , safesysfree , safesysmalloc , safesysrealloc , save_I16 , save_I32 , save_I8 , save_adelete , save_aelem , save_aelem_flags , save_alloc , save_aptr , save_ary , save_bool , save_clearsv , save_delete , save_destructor , save_destructor_x , save_freeop , save_freepv , save_freesv , save_generic_pvref , save_generic_svref , save_gp , save_hash , save_hdelete , save_helem , save_helem_flags , save_hints , save_hptr , save_int , save_item , save_iv , save_list , save_long , save_mortalizesv , save_nogv , save_op , save_padsv_and_mortalize , save_pptr , save_pushi32ptr , save_pushptr , save_pushptrptr , save_re_context , save_scalar , save_set_svflags , save_shared_pvref , save_sptr , save_svref , save_vptr , savestack_grow , savestack_grow_cnt , scan_num , scan_vstring , seed , set_context , set_numeric_local , set_numeric_radix , set_numeric_standard , share_hek , si_dup , ss_dup , stack_grow , start_subparse , str_to_version , sv_2iv , sv_2pv , sv_2uv , sv_catpvf_mg_nocontext , sv_catpvf_nocontext , sv_dup , sv_dup_inc , sv_peek , sv_pvn_nomg , sv_setpvf_mg_nocontext , sv_setpvf_nocontext , swash_fetch , swash_init , sys_init , sys_init3 , sys_intern_clear , sys_intern_dup , sys_intern_init , sys_term , taint_env , taint_proper , unlnk , unsharepvn , utf16_to_utf8 , utf16_to_utf8_reversed , uvuni_to_utf8 , vdeb , vform , vload_module , vnewSVpvf , vwarner , warn_nocontext , warner , warner_nocontext , whichsig , whichsig_pv , whichsig_pvn , whichsig_sv
AUTHORS
SEE ALSO

perlintern - autogenerated documentation of purely internal Perl functions

DESCRIPTION
Compile-time scope hooks BhkENTRY , BhkFLAGS , CALL_BLOCK_HOOKS
Custom Operators core_prototype
CV Manipulation Functions docatch
CV reference counts and CvOUTSIDE CvWEAKOUTSIDE
Embedding Functions cv_dump , cv_forget_slab , do_dump_pad , padlist_dup , padnamelist_dup , padname_dup , pad_alloc_name , pad_block_start , pad_check_dup , pad_findlex , pad_fixup_inner_anons , pad_free , pad_leavemy , pad_push , pad_reset , pad_swipe
GV Functions gv_try_downgrade
Hash Manipulation Functions hv_ename_add , hv_ename_delete , refcounted_he_chain_2hv , refcounted_he_fetch_pv , refcounted_he_fetch_pvn , refcounted_he_fetch_pvs , refcounted_he_fetch_sv , refcounted_he_free , refcounted_he_inc , refcounted_he_new_pv , refcounted_he_new_pvn , refcounted_he_new_pvs , refcounted_he_new_sv
IO Functions start_glob
Lexer interface validate_proto
Magical Functions magic_clearhint , magic_clearhints , magic_methcall , magic_sethint , mg_localize
Miscellaneous Functions free_c_backtrace , get_c_backtrace
MRO Functions mro_get_linear_isa_dfs , mro_isa_changed_in , mro_package_moved
Optree Manipulation Functions finalize_optree
Pad Data Structures CX_CURPAD_SAVE , CX_CURPAD_SV , PadnameIsOUR , PadnameIsSTATE , PadnameOURSTASH , PadnameOUTER , PadnameTYPE , PAD_BASE_SV , PAD_CLONE_VARS , PAD_COMPNAME_FLAGS , PAD_COMPNAME_GEN , PAD_COMPNAME_GEN_set , PAD_COMPNAME_OURSTASH , PAD_COMPNAME_PV , PAD_COMPNAME_TYPE , PAD_RESTORE_LOCAL , PAD_SAVE_LOCAL , PAD_SAVE_SETNULLPAD , PAD_SETSV , PAD_SET_CUR , PAD_SET_CUR_NOSAVE , PAD_SV , PAD_SVl , SAVECLEARSV , SAVECOMPPAD , SAVEPADSV
Per-Interpreter Variables PL_DBsingle , PL_DBsub , PL_DBtrace , PL_dowarn , PL_last_in_gv , PL_ofsgv , PL_rs
Stack Manipulation Macros djSP , LVRET
SV Manipulation Functions SvTHINKFIRST , sv_add_arena , sv_clean_all , sv_clean_objs , sv_free_arenas
SV-Body Allocation sv_2num , sv_copypv , sv_ref
Unicode Support find_uninit_var , report_uninit
Undocumented functions PerlIO_restore_errno , PerlIO_save_errno , Slab_Alloc , Slab_Free , Slab_to_ro , Slab_to_rw , _add_range_to_invlist , _core_swash_init , _get_encoding , _get_swash_invlist , _invlist_array_init , _invlist_contains_cp , _invlist_contents , _invlist_dump , _invlist_intersection , _invlist_intersection_maybe_complement_2nd , _invlist_invert , _invlist_len , _invlist_populate_swatch , _invlist_search , _invlist_subtract , _invlist_union , _invlist_union_maybe_complement_2nd , _load_PL_utf8_foldclosures , _new_invlist , _setup_canned_invlist , _swash_inversion_hash , _swash_to_invlist , _to_fold_latin1 , _to_upper_title_latin1 , _warn_problematic_locale , aassign_common_vars , add_cp_to_invlist , alloc_maybe_populate_EXACT , allocmy , amagic_is_enabled , apply , av_extend_guts , av_reify , bind_match , boot_core_PerlIO , boot_core_UNIVERSAL , boot_core_mro , cando , check_utf8_print , ck_anoncode , ck_backtick , ck_bitop , ck_cmp , ck_concat , ck_defined , ck_delete , ck_each , ck_entersub_args_core , ck_eof , ck_eval , ck_exec , ck_exists , ck_ftst , ck_fun , ck_glob , ck_grep , ck_index , ck_join , ck_length , ck_lfun , ck_listiob , ck_match , ck_method , ck_null , ck_open , ck_prototype , ck_readline , ck_refassign , ck_repeat , ck_require , ck_return , ck_rfun , ck_rvconst , ck_sassign , ck_select , ck_shift , ck_smartmatch , ck_sort , ck_spair , ck_split , ck_stringify , ck_subr , ck_substr , ck_svconst , ck_tell , ck_trunc , closest_cop , compute_EXACTish , coresub_op , create_eval_scope , croak_no_mem , croak_popstack , current_re_engine , custom_op_get_field , cv_ckproto_len_flags , cv_clone_into , cv_const_sv_or_av , cv_undef_flags , cvgv_from_hek , cvgv_set , cvstash_set , deb_stack_all , defelem_target , delete_eval_scope , die_unwind , do_aexec , do_aexec5 , do_eof , do_exec , do_exec3 , do_execfree , do_ipcctl , do_ipcget , do_msgrcv , do_msgsnd , do_ncmp , do_open6 , do_open_raw , do_print , do_readline , do_seek , do_semop , do_shmio , do_sysseek , do_tell , do_trans , do_vecget , do_vecset , do_vop , dofile , drand48_init_r , drand48_r , dump_all_perl , dump_packsubs_perl , dump_sub_perl , dump_sv_child , emulate_cop_io , feature_is_enabled , find_lexical_cv , find_runcv_where , find_rundefsv2 , find_script , free_tied_hv_pool , get_and_check_backslash_N_name , get_db_sub , get_debug_opts , get_hash_seed , get_invlist_iter_addr , get_invlist_offset_addr , get_invlist_previous_index_addr , get_no_modify , get_opargs , get_re_arg , getenv_len , grok_atoUV , grok_bslash_x , gv_fetchmeth_internal , gv_override , gv_setref , gv_stashpvn_internal , gv_stashsvpvn_cached , hfree_next_entry , hv_backreferences_p , hv_kill_backrefs , hv_placeholders_p , hv_undef_flags , init_argv_symbols , init_constants , init_dbargs , init_debugger , invert , invlist_array , invlist_clone , invlist_highest , invlist_is_iterating , invlist_iterfinish , invlist_iterinit , invlist_max , invlist_previous_index , invlist_set_len , invlist_set_previous_index , invlist_trim , io_close , is_utf8_common , isinfnansv , jmaybe , keyword , keyword_plugin_standard , list , localize , magic_clear_all_env , magic_cleararylen_p , magic_clearenv , magic_clearisa , magic_clearpack , magic_clearsig , magic_copycallchecker , magic_existspack , magic_freearylen_p , magic_freeovrld , magic_get , magic_getarylen , magic_getdebugvar , magic_getdefelem , magic_getnkeys , magic_getpack , magic_getpos , magic_getsig , magic_getsubstr , magic_gettaint , magic_getuvar , magic_getvec , magic_killbackrefs , magic_nextpack , magic_regdata_cnt , magic_regdatum_get , magic_regdatum_set , magic_scalarpack , magic_set , magic_set_all_env , magic_setarylen , magic_setcollxfrm , magic_setdbline , magic_setdebugvar , magic_setdefelem , magic_setenv , magic_setisa , magic_setlvref , magic_setmglob , magic_setnkeys , magic_setpack , magic_setpos , magic_setregexp , magic_setsig , magic_setsubstr , magic_settaint , magic_setutf8 , magic_setuvar , magic_setvec , magic_sizepack , magic_wipepack , malloc_good_size , malloced_size , mem_collxfrm , mg_find_mglob , mode_from_discipline , more_bodies , mro_meta_dup , mro_meta_init , multideref_stringify , my_attrs , my_clearenv , my_lstat_flags , my_stat_flags , my_unexec , newATTRSUB_x , newGP , newMETHOP_internal , newSTUB , newSVavdefelem , newXS_deffile , newXS_len_flags , new_warnings_bitfield , nextargv , noperl_die , oopsAV , oopsHV , op_clear , op_integerize , op_lvalue_flags , op_refcnt_dec , op_refcnt_inc , op_relocate_sv , op_std_init , op_unscope , opmethod_stash , opslab_force_free , opslab_free , opslab_free_nopad , package , package_version , pad_add_weakref , padlist_store , padname_free , padnamelist_free , parse_subsignature , parse_unicode_opts , parser_free , parser_free_nexttoke_ops , path_is_searchable , peep , pmruntime , populate_isa , ptr_hash , qerror , re_op_compile , reg_named_buff , reg_named_buff_iter , reg_numbered_buff_fetch , reg_numbered_buff_length , reg_numbered_buff_store , reg_qr_package , reg_skipcomment , reg_temp_copy , regcurly , regpposixcc , regprop , report_evil_fh , report_redefined_cv , report_wrongway_fh , rpeep , rsignal_restore , rsignal_save , rxres_save , same_dirent , save_aliased_sv , save_strlen , sawparens , scalar , scalarvoid , set_caret_X , set_padlist , should_warn_nl , sighandler , softref2xv , ssc_add_range , ssc_clear_locale , ssc_cp_and , ssc_intersection , ssc_union , sub_crush_depth , sv_add_backref , sv_buf_to_ro , sv_del_backref , sv_free2 , sv_kill_backrefs , sv_len_utf8_nomg , sv_magicext_mglob , sv_mortalcopy_flags , sv_only_taint_gmagic , sv_or_pv_pos_u2b , sv_resetpvn , sv_sethek , sv_setsv_cow , sv_unglob , tied_method , tmps_grow_p , translate_substr_offsets , try_amagic_bin , try_amagic_un , unshare_hek , utilize , varname , vivify_defelem , vivify_ref , wait4pid , was_lvalue_sub , watch , win32_croak_not_implemented , write_to_stderr , xs_boot_epilog , xs_handshake , yyerror , yyerror_pv , yyerror_pvn , yylex , yyparse , yyunlex
AUTHORS
SEE ALSO

    perliol - C API for Perl’s implementation of IO in Layers.

SYNOPSIS
DESCRIPTION
History and Background
Basic Structure
Layers vs Disciplines
Data Structures
Functions and Attributes
Per-instance Data
Layers in action.
Per-instance flag bits PERLIO_F_EOF, PERLIO_F_CANWRITE, PERLIO_F_CANREAD, PERLIO_F_ERROR, PERLIO_F_TRUNCATE, PERLIO_F_APPEND, PERLIO_F_CRLF, PERLIO_F_UTF8, PERLIO_F_UNBUF, PERLIO_F_WRBUF, PERLIO_F_RDBUF, PERLIO_F_LINEBUF, PERLIO_F_TEMP, PERLIO_F_OPEN, PERLIO_F_FASTGETS
Methods in Detail fsize, name, size, kind, PERLIO_K_BUFFERED, PERLIO_K_RAW, PERLIO_K_CANCRLF, PERLIO_K_FASTGETS, PERLIO_K_MULTIARG, Pushed, Popped, Open, Binmode, Getarg, Fileno, Dup, Read, Write, Seek, Tell, Close, Flush, Fill, Eof, Error,  Clearerr, Setlinebuf, Get_base, Get_bufsiz, Get_ptr, Get_cnt, Set_ptrcnt
Utilities
Implementing PerlIO Layers C implementations, Perl implementations
Core Layers unix, perlio, stdio, crlf, mmap, pending, raw, utf8
Extension Layers :encoding, :scalar, :via
TODO

    perlapio - perl’s IO abstraction interface.

SYNOPSIS
DESCRIPTION 1. USE_STDIO, 2. USE_PERLIO, <B>B>PerlIO_stdin()<B>B>, <B>B>PerlIO_stdout()<B>B>, <B>B>PerlIO_stderr()<B>B>, <B>PerlIO_open(path, mode)B>, <B>PerlIO_fdopen(fd,mode)B>, <B>PerlIO_reopen(path,mode,f)B>, <B>PerlIO_printf(f,fmt,...)B>, <B>PerlIO_vprintf(f,fmt,a)B>, <B>PerlIO_stdoutf(fmt,...)B>, <B>PerlIO_read(f,buf,count)B>, <B>PerlIO_write(f,buf,count)B>, <B>PerlIO_close(f)B>, <B>PerlIO_puts(f,s)B>, <B>PerlIO_putc(f,c)B>, <B>PerlIO_ungetc(f,c)B>, <B>PerlIO_getc(f)B>, <B>PerlIO_eof(f)B>, <B>PerlIO_error(f)B>, <B>PerlIO_fileno(f)B>, <B>PerlIO_clearerr(f)B>, <B>PerlIO_flush(f)B>, <B>PerlIO_seek(f,offset,whence)B>, <B>PerlIO_tell(f)B>, <B>PerlIO_getpos(f,p)B>, <B>PerlIO_setpos(f,p)B>, <B>PerlIO_rewind(f)B>, <B>B>PerlIO_tmpfile()<B>B>, <B>PerlIO_setlinebuf(f)B>
Co-existence with stdio <B>PerlIO_importFILE(f,mode)B>, <B>PerlIO_exportFILE(f,mode)B>, <B>PerlIO_releaseFILE(p,f)B>, <B>PerlIO_findFILE(f)B>
‘‘Fast gets’’ Functions <B>PerlIO_fast_gets(f)B>, <B>PerlIO_has_cntptr(f)B>, <B>PerlIO_get_cnt(f)B>, <B>PerlIO_get_ptr(f)B>, <B>PerlIO_set_ptrcnt(f,p,c)B>, <B>PerlIO_canset_cnt(f)B>, <B>PerlIO_set_cnt(f,c)B>, <B>PerlIO_has_base(f)B>, <B>PerlIO_get_base(f)B>, <B>PerlIO_get_bufsiz(f)B>
Other Functions PerlIO_apply_layers(f,mode,layers), PerlIO_binmode(f,ptype,imode,layers), ’<’ read, ’>’ write, ’+’ read/write, PerlIO_debug(fmt,...)

    perlhack - How to hack on Perl

DESCRIPTION
SUPER QUICK PATCH GUIDE Check out the source repository, Ensure you’re following the latest advice, Make your change, Test your change, Commit your change, Send your change to perlbug, Thank you, Next time
BUG REPORTING
PERL 5 PORTERS
perl-changes mailing list
#p5p on IRC
GETTING THE PERL SOURCE
Read access via Git
Read access via the web
Read access via rsync
Write access via git
PATCHING PERL
Submitting patches
Getting your patch accepted Why, What, How
Patching a core module
Updating perldelta
What makes for a good patch?
TESTING t/base, t/comp and t/opbasic, t/cmd, t/run, t/io and t/op, Everything else, 1), 2)
Special make test targets test_porting, minitest, test.valgrind check.valgrind, test_harness, test-notty test_notty
Parallel tests
Running tests by hand
Using t/harness for testing -v, -torture, -re=PATTERN, -re LIST OF PATTERNS, PERL_CORE=1, PERL_DESTRUCT_LEVEL=2, PERL, PERL_SKIP_TTY_TEST, PERL_TEST_Net_Ping, PERL_TEST_NOVREXX, PERL_TEST_NUMCONVERTS, PERL_TEST_MEMORY
Performance testing
MORE READING FOR GUTS HACKERS perlsource, perlinterp, perlhacktut, perlhacktips, perlguts, perlxstut and perlxs, perlapi, Porting/pumpkin.pod
CPAN TESTERS AND PERL SMOKERS
WHAT NEXT?
‘‘The Road goes ever on and on, down from the door where it began.’’
Metaphoric Quotations
AUTHOR

    perlsource - A guide to the Perl source tree

DESCRIPTION
FINDING YOUR WAY AROUND
C code
Core modules lib/, ext/, dist/, cpan/
Tests Module tests, t/base/, t/cmd/, t/comp/, t/io/, t/mro/, t/op/, t/opbasic/, t/re/, t/run/, t/uni/, t/win32/, t/porting/, t/lib/
Documentation
Hacking tools and documentation check*, Maintainers, Maintainers.pl, and Maintainers.pm, podtidy
Build system
AUTHORS
MANIFEST

    perlinterp - An overview of the Perl interpreter

DESCRIPTION
ELEMENTS OF THE INTERPRETER
Startup
Parsing
Optimization
Running
Exception handing
INTERNAL VARIABLE TYPES
OP TREES
STACKS
Argument stack
Mark stack
Save stack
MILLIONS OF MACROS
FURTHER READING

    perlhacktut - Walk through the creation of a simple C code patch

DESCRIPTION
EXAMPLE OF A SIMPLE PATCH
Writing the patch
Testing the patch
Documenting the patch
Submit
AUTHOR

    perlhacktips - Tips for Perl core C code hacking

DESCRIPTION
COMMON PROBLEMS
Perl environment problems
Portability problems
Problematic System Interfaces
Security problems
DEBUGGING
Poking at Perl
Using a source-level debugger run [args], break function_name, break source.c:xxx, step, next, continue, finish, ’enter’, ptype, print
gdb macro support
Dumping Perl Data Structures
Using gdb to look at specific parts of a program
Using gdb to look at what the parser/lexer are doing
SOURCE CODE STATIC ANALYSIS
lint, splint
Coverity
cpd (cut-and-paste detector)
gcc warnings
Warnings of other C compilers
MEMORY DEBUGGERS
valgrind
AddressSanitizer -Dcc=clang, -Accflags=-faddress-sanitizer, -Aldflags=-faddress-sanitizer, -Alddlflags=-shared\ -faddress-sanitizer
PROFILING
Gprof Profiling -a, -b, -e routine, -f routine, -s, -z
GCC gcov Profiling
MISCELLANEOUS TRICKS
PERL_DESTRUCT_LEVEL
PERL_MEM_LOG
DDD over gdb
C backtrace Linux, OS X, get_c_backtrace, free_c_backtrace, get_c_backtrace_dump, dump_c_backtrace
Poison
Read-only optrees
When is a bool not a bool?
The .i Targets
AUTHOR

    perlpolicy - Various and sundry policies and commitments related to the Perl core

DESCRIPTION
GOVERNANCE
Perl 5 Porters
MAINTENANCE AND SUPPORT
BACKWARD COMPATIBILITY AND DEPRECATION
Terminology experimental, deprecated, discouraged, removed
MAINTENANCE BRANCHES
Getting changes into a maint branch
CONTRIBUTED MODULES
A Social Contract about Artistic Control
DOCUMENTATION
STANDARDS OF CONDUCT
CREDITS

    perlgit - Detailed information about git and the Perl repository

DESCRIPTION
CLONING THE REPOSITORY
WORKING WITH THE REPOSITORY
Finding out your status
Patch workflow
Committing your changes
Sending patch emails
A note on derived files
Cleaning a working directory
Bisecting
Topic branches and rewriting history
Grafts
WRITE ACCESS TO THE GIT REPOSITORY
Accepting a patch
Committing to blead
On merging and rebasing
Committing to maintenance versions
Merging from a branch via GitHub
Using a smoke-me branch to test changes
A note on camel and dromedary

    perlbook - Books about and related to Perl

DESCRIPTION
The most popular books Programming Perl (the Camel Book):, The Perl Cookbook (the Ram Book):, Learning Perl (the Llama Book), Intermediate Perl (the Alpaca Book)
References Perl 5 Pocket Reference, Perl Debugger Pocket Reference, Regular Expression Pocket Reference
Tutorials Beginning Perl, Learning Perl (the Llama Book), Intermediate Perl (the Alpaca Book), Mastering Perl, Effective Perl Programming
Task-Oriented Writing Perl Modules for CPAN, The Perl Cookbook, Automating System Administration with Perl, Real World SQL Server Administration with Perl
Special Topics Regular Expressions Cookbook, Programming the Perl DBI, Perl Best Practices, Higher-Order Perl, Mastering Regular Expressions, Network Programming with Perl, Perl Template Toolkit, Object Oriented Perl, Data Munging with Perl, Mastering Perl/Tk, Extending and Embedding Perl, Pro Perl Debugging
Free (as in beer) books
Other interesting, non-Perl books Programming Pearls, More Programming Pearls
A note on freshness
Get your book listed

    perlcommunity - a brief overview of the Perl community

DESCRIPTION
Where to Find the Community
Mailing Lists and Newsgroups
IRC
Websites <http://perl.com/>, <http://blogs.perl.org/>, <http://perlsphere.net/>, <http://perlweekly.com/>, <http://use.perl.org/>, <http://www.perlmonks.org/>, <http://stackoverflow.com/>, <http://prepan.org/>
User Groups
Workshops
Hackathons
Conventions
Calendar of Perl Events
AUTHOR

    perldoc - Look up Perl documentation in Pod format.

SYNOPSIS
DESCRIPTION
OPTIONS <B>-hB>, <B>-DB>, <B>-tB>, <B>-uB>, <B>-mB> module, <B>-lB>, <B>-FB>, <B>-fB> perlfunc, <B>-qB> perlfaq-search-regexp, <B>-aB> perlapifunc, <B>-vB> perlvar, <B>-TB>, <B>-dB> destination-filename, <B>-oB> output-formatname, <B>-MB> module-name, <B>-wB> option:value or <B>-wB> option, <B>-XB>, <B>-LB> language_code, <B>PageName|ModuleName|ProgramName|URLB>, <B>-nB> some-formatter, <B>-rB>, <B>-iB>, <B>-VB>
SECURITY
ENVIRONMENT
CHANGES
SEE ALSO
AUTHOR

    perlhist - the Perl history records

DESCRIPTION
INTRODUCTION
THE KEEPERS OF THE PUMPKIN
PUMPKIN?
THE RECORDS
SELECTED RELEASE SIZES
SELECTED PATCH SIZES
THE KEEPERS OF THE RECORDS

    perldelta - what is new for perl v5.22.1

DESCRIPTION
Incompatible Changes
Bounds Checking Constructs
Modules and Pragmata
Updated Modules and Pragmata
Documentation
Changes to Existing Documentation
Diagnostics
Changes to Existing Diagnostics
Configuration and Compilation
Platform Support
Platform-Specific Notes IRIX
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5221delta, perldelta - what is new for perl v5.22.1

DESCRIPTION
Incompatible Changes
Bounds Checking Constructs
Modules and Pragmata
Updated Modules and Pragmata
Documentation
Changes to Existing Documentation
Diagnostics
Changes to Existing Diagnostics
Configuration and Compilation
Platform Support
Platform-Specific Notes IRIX
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5221delta, perldelta - what is new for perl v5.22.1

DESCRIPTION
Incompatible Changes
Bounds Checking Constructs
Modules and Pragmata
Updated Modules and Pragmata
Documentation
Changes to Existing Documentation
Diagnostics
Changes to Existing Diagnostics
Configuration and Compilation
Platform Support
Platform-Specific Notes IRIX
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5220delta - what is new for perl v5.22.0

DESCRIPTION
Core Enhancements
New bitwise operators
New double-diamond operator
New \b boundaries in regular expressions
Non-Capturing Regular Expression Flag
use re strict
Unicode 7.0 (with correction) is now supported
use locale can restrict which locale categories are affected
Perl now supports POSIX 2008 locale currency additions
Better heuristics on older platforms for determining locale UTF-8ness
Aliasing via reference
prototype with no arguments
New :const subroutine attribute
fileno now works on directory handles
List form of pipe open implemented for Win32
Assignment to list repetition
Infinity and NaN (not-a-number) handling improved
Floating point parsing has been improved
Packing infinity or not-a-number into a character is now fatal
Experimental C Backtrace API
Security
Perl is now compiled with -fstack-protector-strong if available
The Safe module could allow outside packages to be replaced
Perl is now always compiled with -D_FORTIFY_SOURCE=2 if available
Incompatible Changes
Subroutine signatures moved before attributes
& and \& prototypes accepts only subs
use encoding is now lexical
List slices returning empty lists
\N{} with a sequence of multiple spaces is now a fatal error
use UNIVERSAL ... is now a fatal error
In double-quotish \cX, X must now be a printable ASCII character
Splitting the tokens (? and (* in regular expressions is now a fatal compilation error.
qr/foo/x now ignores all Unicode pattern white space
Comment lines within (?[ ]) are now ended only by a \n
(?[...]) operators now follow standard Perl precedence
Omitting % and @ on hash and array names is no longer permitted
‘‘$!’’ text is now in English outside the scope of use locale
‘‘$!’’ text will be returned in UTF-8 when appropriate
Support for ?PATTERN? without explicit operator has been removed
defined(@array) and defined(%hash) are now fatal errors
Using a hash or an array as a reference are now fatal errors
Changes to the * prototype
Deprecations
Setting ${^ENCODING} to anything but undef
Use of non-graphic characters in single-character variable names
Inlining of sub () { $var } with observable side-effects
Use of multiple /x regexp modifiers
Using a NO-BREAK space in a character alias for \N{...} is now deprecated
A literal ‘‘{’’ should now be escaped in a pattern
Making all warnings fatal is discouraged
Performance Enhancements
Modules and Pragmata
Updated Modules and Pragmata
Removed Modules and Pragmata
Documentation
New Documentation
Changes to Existing Documentation
Diagnostics
New Diagnostics
Changes to Existing Diagnostics
Diagnostic Removals
Utility Changes
find2perl, s2p and a2p removal
h2ph
encguess
Configuration and Compilation
Testing
Platform Support
Regained Platforms IRIX and Tru64 platforms are working again, z/OS running EBCDIC Code Page 1047
Discontinued Platforms NeXTSTEP/OPENSTEP
Platform-Specific Notes EBCDIC, HP-UX, Android, VMS, Win32, OpenBSD, Solaris
Internal Changes
Selected Bug Fixes
Known Problems
Obituary
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5203delta - what is new for perl v5.20.3

DESCRIPTION
Incompatible Changes
Modules and Pragmata
Updated Modules and Pragmata
Documentation
Changes to Existing Documentation
Utility Changes
h2ph
Testing
Platform Support
Platform-Specific Notes Win32
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5202delta - what is new for perl v5.20.2

DESCRIPTION
Incompatible Changes
Modules and Pragmata
Updated Modules and Pragmata
Documentation
New Documentation
Changes to Existing Documentation
Diagnostics
Changes to Existing Diagnostics
Testing
Platform Support
Regained Platforms
Selected Bug Fixes
Known Problems
Errata From Previous Releases
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5201delta - what is new for perl v5.20.1

DESCRIPTION
Incompatible Changes
Performance Enhancements
Modules and Pragmata
Updated Modules and Pragmata
Documentation
Changes to Existing Documentation
Diagnostics
Changes to Existing Diagnostics
Configuration and Compilation
Platform Support
Platform-Specific Notes Android, OpenBSD, Solaris, VMS, Windows
Internal Changes
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5200delta - what is new for perl v5.20.0

DESCRIPTION
Core Enhancements
Experimental Subroutine signatures
subs now take a prototype attribute
More consistent prototype parsing
rand now uses a consistent random number generator
New slice syntax
Experimental Postfix Dereferencing
Unicode 6.3 now supported
New \p{Unicode} regular expression pattern property
Better 64-bit support
use locale now works on UTF-8 locales
use locale now compiles on systems without locale ability
More locale initialization fallback options
-DL runtime option now added for tracing locale setting
<B>-FB> now implies <B>-aB> and <B>-aB> implies <B>-nB>
$a and $b warnings exemption
Security
Avoid possible read of free()d memory during parsing
Incompatible Changes
do can no longer be used to call subroutines
Quote-like escape changes
Tainting happens under more circumstances; now conforms to documentation
\p{}, \P{} matching has changed for non-Unicode code points.
\p{All} has been expanded to match all possible code points
Data::Dumper’s output may change
Locale decimal point character no longer leaks outside of use locale scope
Assignments of Windows sockets error codes to $! now prefer errno.h values over WSAGetLastError() values
Functions PerlIO_vsprintf and PerlIO_sprintf have been removed
Deprecations
The /\C/ character class
Literal control characters in variable names
References to non-integers and non-positive integers in $/
Character matching routines in POSIX
Interpreter-based threads are now discouraged
Module removals CGI and its associated CGI:: packages, inc::latest, Package::Constants, Module::Build and its associated Module::Build:: packages
Utility removals find2perl, s2p, a2p
Performance Enhancements
Modules and Pragmata
New Modules and Pragmata
Updated Modules and Pragmata
Documentation
New Documentation
Changes to Existing Documentation
Diagnostics
New Diagnostics
Changes to Existing Diagnostics
Utility Changes
Configuration and Compilation
Testing
Platform Support
New Platforms Android, Bitrig, FreeMiNT, Synology
Discontinued Platforms sfio, AT&T 3b1, DG/UX, EBCDIC
Platform-Specific Notes Cygwin, GNU/Hurd, Linux, Mac OS, MidnightBSD, Mixed-endian platforms, VMS, Win32, WinCE
Internal Changes
Selected Bug Fixes
Regular Expressions
Perl 5 Debugger and -d
Lexical Subroutines
Everything Else
Known Problems
Obituary
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5184delta - what is new for perl v5.18.4

DESCRIPTION
Modules and Pragmata
Updated Modules and Pragmata
Platform Support
Platform-Specific Notes Win32
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5182delta - what is new for perl v5.18.2

DESCRIPTION
Modules and Pragmata
Updated Modules and Pragmata
Documentation
Changes to Existing Documentation
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5181delta - what is new for perl v5.18.1

DESCRIPTION
Incompatible Changes
Modules and Pragmata
Updated Modules and Pragmata
Platform Support
Platform-Specific Notes AIX, MidnightBSD
Selected Bug Fixes
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5180delta - what is new for perl v5.18.0

DESCRIPTION
Core Enhancements
New mechanism for experimental features
Hash overhaul
Upgrade to Unicode 6.2
Character name aliases may now include non-Latin1-range characters
New DTrace probes
${^LAST_FH}
Regular Expression Set Operations
Lexical subroutines
Computed Labels
More CORE:: subs
kill with negative signal names
Security
See also: hash overhaul
Storable security warning in documentation
Locale::Maketext allowed code injection via a malicious template
Avoid calling memset with a negative count
Incompatible Changes
See also: hash overhaul
An unknown character name in \N{...} is now a syntax error
Formerly deprecated characters in \N{} character name aliases are now errors.
\N{BELL} now refers to U+1F514 instead of U+0007
New Restrictions in Multi-Character Case-Insensitive Matching in Regular Expression Bracketed Character Classes
Explicit rules for variable names and identifiers
Vertical tabs are now whitespace
/(?{})/ and /(??{})/ have been heavily reworked
Stricter parsing of substitution replacement
given now aliases the global $_
The smartmatch family of features are now experimental
Lexical $_ is now experimental
readline() with $/ = \N now reads N characters, not N bytes
Overridden glob is now passed one argument
Here doc parsing
Alphanumeric operators must now be separated from the closing delimiter of regular expressions
qw(...) can no longer be used as parentheses
Interaction of lexical and default warnings
state sub and our sub
Defined values stored in environment are forced to byte strings
require dies for unreadable files
gv_fetchmeth_* and SUPER
split’s first argument is more consistently interpreted
Deprecations
Module removals encoding, Archive::Extract, B::Lint, B::Lint::Debug, CPANPLUS and all included CPANPLUS::* modules, Devel::InnerPackage, Log::Message, Log::Message::Config, Log::Message::Handlers, Log::Message::Item, Log::Message::Simple, Module::Pluggable, Module::Pluggable::Object, Object::Accessor, Pod::LaTeX, Term::UI, Term::UI::History
Deprecated Utilities cpanp, cpanp-run-perl, cpan2dist, pod2latex
PL_sv_objcount
Five additional characters should be escaped in patterns with /x
User-defined charnames with surprising whitespace
Various XS-callable functions are now deprecated
Certain rare uses of backslashes within regexes are now deprecated
Splitting the tokens (? and (* in regular expressions
Pre-PerlIO IO implementations
Future Deprecations DG/UX, NeXT
Performance Enhancements
Modules and Pragmata
New Modules and Pragmata
Updated Modules and Pragmata
Removed Modules and Pragmata
Documentation
Changes to Existing Documentation
New Diagnostics
Changes to Existing Diagnostics
Utility Changes
Configuration and Compilation
Testing
Platform Support
Discontinued Platforms BeOS, UTS Global, VM/ESA, MPE/IX, EPOC, Rhapsody
Platform-Specific Notes
Internal Changes
Selected Bug Fixes
Known Problems
Obituary
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5163delta - what is new for perl v5.16.3

DESCRIPTION
Core Enhancements
Security
CVE-2013-1667: memory exhaustion with arbitrary hash keys
wrap-around with IO on long strings
memory leak in Encode
Incompatible Changes
Deprecations
Modules and Pragmata
Updated Modules and Pragmata
Known Problems
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5162delta - what is new for perl v5.16.2

DESCRIPTION
Incompatible Changes
Modules and Pragmata
Updated Modules and Pragmata
Configuration and Compilation configuration should no longer be confused by ls colorization
Platform Support
Platform-Specific Notes AIX
Selected Bug Fixes fix /\h/ equivalence with /[\h]/
Known Problems
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5161delta - what is new for perl v5.16.1

DESCRIPTION
Security
an off-by-two error in Scalar-List-Util has been fixed
Incompatible Changes
Modules and Pragmata
Updated Modules and Pragmata
Configuration and Compilation
Platform Support
Platform-Specific Notes VMS
Selected Bug Fixes
Known Problems
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5160delta - what is new for perl v5.16.0

DESCRIPTION
Notice
Core Enhancements
use VERSION
__SUB__
New and Improved Built-ins
Unicode Support
XS Changes
Changes to Special Variables
Debugger Changes
The CORE Namespace
Other Changes
Security
Use is_utf8_char_buf() and not is_utf8_char()
Malformed UTF-8 input could cause attempts to read beyond the end of the buffer
File::Glob::bsd_glob() memory error with GLOB_ALTDIRFUNC (CVE-2011-2728).
Privileges are now set correctly when assigning to $(
Deprecations
Don’t read the Unicode data base files in lib/unicore
XS functions is_utf8_char(), utf8_to_uvchr() and utf8_to_uvuni()
Future Deprecations
Core Modules
Platforms with no supporting programmers
Other Future Deprecations
Incompatible Changes
Special blocks called in void context
The overloading pragma and regexp objects
Two XS typemap Entries removed
Unicode 6.1 has incompatibilities with Unicode 6.0
Borland compiler
Certain deprecated Unicode properties are no longer supported by default
Dereferencing IO thingies as typeglobs
User-defined case-changing operations
XSUBs are now ’static’
Weakening read-only references
Tying scalars that hold typeglobs
IPC::Open3 no longer provides xfork(), xclose_on_exec() and xpipe_anon()
$$ no longer caches PID
$$ and getppid() no longer emulate POSIX semantics under LinuxThreads
$<, $>, $( and $) are no longer cached
Which Non-ASCII characters get quoted by quotemeta and \Q has changed
Performance Enhancements
Modules and Pragmata
Deprecated Modules Version::Requirements
New Modules and Pragmata
Updated Modules and Pragmata
Removed Modules and Pragmata
Documentation
New Documentation
Changes to Existing Documentation
Removed Documentation
Diagnostics
New Diagnostics
Removed Errors
Changes to Existing Diagnostics
Utility Changes
Configuration and Compilation
Platform Support
Platform-Specific Notes
Internal Changes
Selected Bug Fixes
Array and hash
C API fixes
Compile-time hints
Copy-on-write scalars
The debugger
Dereferencing operators
Filehandle, last-accessed
Filetests and stat
Formats
given and when
The glob operator
Lvalue subroutines
Overloading
Prototypes of built-in keywords
Regular expressions
Smartmatching
The sort operator
The substr operator
Support for embedded nulls
Threading bugs
Tied variables
Version objects and vstrings
Warnings, redefinition
Warnings, ‘‘Uninitialized’’
Weak references
Other notable fixes
Known Problems
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5144delta - what is new for perl v5.14.4

DESCRIPTION
Core Enhancements
Security
CVE-2013-1667: memory exhaustion with arbitrary hash keys
memory leak in Encode
[perl #111594] Socket::unpack_sockaddr_un heap-buffer-overflow
[perl #111586] SDBM_File: fix off-by-one access to global ‘‘.dir’’
off-by-two error in List::Util
[perl #115994] fix segv in regcomp.c:S_join_exact()
[perl #115992] PL_eval_start use-after-free
wrap-around with IO on long strings
Incompatible Changes
Deprecations
Modules and Pragmata
New Modules and Pragmata
Updated Modules and Pragmata Socket, SDBM_File, List::Util
Removed Modules and Pragmata
Documentation
New Documentation
Changes to Existing Documentation
Diagnostics
Utility Changes
Configuration and Compilation
Platform Support
New Platforms
Discontinued Platforms
Platform-Specific Notes VMS
Selected Bug Fixes
Known Problems
Acknowledgements
Reporting Bugs
SEE ALSO

    perl5143delta - what is new for perl v5.14.3

DESCRIPTION
Core Enhancements
Security
Digest unsafe use of eval (CVE-2011-3597)
Heap buffer overrun in ’x’ string repeat operator (CVE-2012-5195)
Incompatible Changes