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PERLMODLIB

Section: Perl Programmers Reference Guide (1)
Updated: 2017-08-16
Index Return to Main Contents

NAME

perlmodlib - constructing new Perl modules and finding existing ones

THE PERL MODULE LIBRARY

Many modules are included in the Perl distribution. These are described below, and all end in .pm. You may discover compiled library files (usually ending in .so) or small pieces of modules to be autoloaded (ending in .al); these were automatically generated by the installation process. You may also discover files in the library directory that end in either .pl or .ph. These are old libraries supplied so that old programs that use them still run. The .pl files will all eventually be converted into standard modules, and the .ph files made by h2ph will probably end up as extension modules made by h2xs. (Some .ph values may already be available through the POSIX, Errno, or Fcntl modules.) The pl2pm file in the distribution may help in your conversion, but it's just a mechanical process and therefore far from bulletproof.

Pragmatic Modules

They work somewhat like compiler directives (pragmata) in that they tend to affect the compilation of your program, and thus will usually work well only when used within a "use", or "no". Most of these are lexically scoped, so an inner BLOCK may countermand them by saying:

    no integer;
    no strict 'refs';
    no warnings;

which lasts until the end of that BLOCK.

Some pragmas are lexically scoped---typically those that affect the $^H hints variable. Others affect the current package instead, like "use vars" and "use subs", which allow you to predeclare a variables or subroutines within a particular file rather than just a block. Such declarations are effective for the entire file for which they were declared. You cannot rescind them with "no vars" or "no subs".

The following pragmas are defined (and have their own documentation).

arybase: Set indexing base via $[
attributes: Get/set subroutine or variable attributes
autodie: Replace functions with ones that succeed or die with lexical scope
autodie::exception: Exceptions from autodying functions.
autodie::exception::system: Exceptions from autodying system().
autodie::hints: Provide hints about user subroutines to autodie
autodie::skip: Skip a package when throwing autodie exceptions
autouse: Postpone load of modules until a function is used
base: Establish an ISA relationship with base classes at compile time
bigint: Transparent BigInteger support for Perl
bignum: Transparent BigNumber support for Perl
bigrat: Transparent BigNumber/BigRational support for Perl
blib: Use MakeMaker's uninstalled version of a package
bytes: Expose the individual bytes of characters
charnames: Access to Unicode character names and named character sequences; also define character names
constant: Declare constants
deprecate: Perl pragma for deprecating the core version of a module
diagnostics: Produce verbose warning diagnostics
encoding: Allows you to write your script in non-ASCII and non-UTF-8
encoding::warnings: Warn on implicit encoding conversions
experimental: Experimental features made easy
feature: Enable new features
fields: Compile-time class fields
filetest: Control the filetest permission operators
if: "use" a Perl module if a condition holds (also can "no" a module)
integer: Use integer arithmetic instead of floating point
less: Request less of something
lib: Manipulate @INC at compile time
locale: Use or avoid POSIX locales for built-in operations
mro: Method Resolution Order
ok: Alternative to Test::More::use_ok
open: Set default PerlIO layers for input and output
ops: Restrict unsafe operations when compiling
overload: Package for overloading Perl operations
overloading: Lexically control overloading
parent: Establish an ISA relationship with base classes at compile time
re: Alter regular expression behaviour
sigtrap: Enable simple signal handling
sort: Control sort() behaviour
strict: Restrict unsafe constructs
subs: Predeclare sub names
threads: Perl interpreter-based threads
threads::shared: Perl extension for sharing data structures between threads
utf8: Enable/disable UTF-8 (or UTF-EBCDIC) in source code
vars: Predeclare global variable names
version: Perl extension for Version Objects
vmsish: Control VMS-specific language features
warnings::register: Warnings import function

Standard Modules

Standard, bundled modules are all expected to behave in a well-defined manner with respect to namespace pollution because they use the Exporter module. See their own documentation for details.

It's possible that not all modules listed below are installed on your system. For example, the GDBM_File module will not be installed if you don't have the gdbm library.

Amiga::ARexx

Perl extension for ARexx support

Amiga::Exec

Perl extension for low level amiga support

AnyDBM_File

Provide framework for multiple DBMs

App::Cpan

Easily interact with CPAN from the command line

App::Prove

Implements the "prove" command.

App::Prove::State

State storage for the "prove" command.

App::Prove::State::Result

Individual test suite results.

App::Prove::State::Result::Test

Individual test results.

Archive::Tar

Module for manipulations of tar archives

Archive::Tar::File

A subclass for in-memory extracted file from Archive::Tar

Attribute::Handlers

Simpler definition of attribute handlers

AutoLoader

Load subroutines only on demand

AutoSplit

Split a package for autoloading

B

The Perl Compiler Backend

B::Concise

Walk Perl syntax tree, printing concise info about ops

B::Debug

Walk Perl syntax tree, printing debug info about ops

B::Deparse

Perl compiler backend to produce perl code

B::Op_private

 OP op_private flag definitions

B::Showlex

Show lexical variables used in functions or files

B::Terse

Walk Perl syntax tree, printing terse info about ops

B::Xref

Generates cross reference reports for Perl programs

Benchmark

Benchmark running times of Perl code

IO::Socket::IP

Family-neutral IP socket supporting both IPv4 and IPv6

Socket

Networking constants and support functions

CORE

Namespace for Perl's core routines

CPAN

Query, download and build perl modules from CPAN sites

CPAN::API::HOWTO

A recipe book for programming with CPAN.pm

CPAN::Debug

Internal debugging for CPAN.pm

CPAN::Distroprefs

Read and match distroprefs

CPAN::FirstTime

Utility for CPAN::Config file Initialization

CPAN::HandleConfig

Internal configuration handling for CPAN.pm

CPAN::Kwalify

Interface between CPAN.pm and Kwalify.pm

CPAN::Meta

The distribution metadata for a CPAN dist

CPAN::Meta::Converter

Convert CPAN distribution metadata structures

CPAN::Meta::Feature

An optional feature provided by a CPAN distribution

CPAN::Meta::History

History of CPAN Meta Spec changes

CPAN::Meta::History::Meta_1_0

Version 1.0 metadata specification for META.yml

CPAN::Meta::History::Meta_1_1

Version 1.1 metadata specification for META.yml

CPAN::Meta::History::Meta_1_2

Version 1.2 metadata specification for META.yml

CPAN::Meta::History::Meta_1_3

Version 1.3 metadata specification for META.yml

CPAN::Meta::History::Meta_1_4

Version 1.4 metadata specification for META.yml

CPAN::Meta::Merge

Merging CPAN Meta fragments

CPAN::Meta::Prereqs

A set of distribution prerequisites by phase and type

CPAN::Meta::Requirements

A set of version requirements for a CPAN dist

CPAN::Meta::Spec

Specification for CPAN distribution metadata

CPAN::Meta::Validator

Validate CPAN distribution metadata structures

CPAN::Meta::YAML

Read and write a subset of YAML for CPAN Meta files

CPAN::Nox

Wrapper around CPAN.pm without using any XS module

CPAN::Plugin

Base class for CPAN shell extensions

CPAN::Plugin::Specfile

Proof of concept implementation of a trivial CPAN::Plugin

CPAN::Queue

Internal queue support for CPAN.pm

CPAN::Tarzip

Internal handling of tar archives for CPAN.pm

CPAN::Version

Utility functions to compare CPAN versions

Carp

Alternative warn and die for modules

Class::Struct

Declare struct-like datatypes as Perl classes

Compress::Raw::Bzip2

Low-Level Interface to bzip2 compression library

Compress::Raw::Zlib

Low-Level Interface to zlib compression library

Compress::Zlib

Interface to zlib compression library

Config

Access Perl configuration information

Config::Perl::V

Structured data retrieval of perl -V output

Cwd

Get pathname of current working directory

DB

Programmatic interface to the Perl debugging API

DBM_Filter

Filter DBM keys/values

DBM_Filter::compress

Filter for DBM_Filter

DBM_Filter::encode

Filter for DBM_Filter

DBM_Filter::int32

Filter for DBM_Filter

DBM_Filter::null

Filter for DBM_Filter

DBM_Filter::utf8

Filter for DBM_Filter

DB_File

Perl5 access to Berkeley DB version 1.x

Data::Dumper

Stringified perl data structures, suitable for both printing and "eval"

Devel::PPPort

Perl/Pollution/Portability

Devel::Peek

A data debugging tool for the XS programmer

Devel::SelfStubber

Generate stubs for a SelfLoading module

Digest

Modules that calculate message digests

Digest::MD5

Perl interface to the MD5 Algorithm

Digest::SHA

Perl extension for SHA-1/224/256/384/512

Digest::base

Digest base class

Digest::file

Calculate digests of files

DirHandle

Supply object methods for directory handles

Dumpvalue

Provides screen dump of Perl data.

DynaLoader

Dynamically load C libraries into Perl code

Encode

Character encodings in Perl

Encode::Alias

Alias definitions to encodings

Encode::Byte

Single Byte Encodings

Encode::CJKConstants

Internally used by Encode::??::ISO_2022_*

Encode::CN

China-based Chinese Encodings

Encode::CN::HZ

Internally used by Encode::CN

Encode::Config

Internally used by Encode

Encode::EBCDIC

EBCDIC Encodings

Encode::Encoder

Object Oriented Encoder

Encode::Encoding

Encode Implementation Base Class

Encode::GSM0338

ESTI GSM 03.38 Encoding

Encode::Guess

Guesses encoding from data

Encode::JP

Japanese Encodings

Encode::JP::H2Z

Internally used by Encode::JP::2022_JP*

Encode::JP::JIS7

Internally used by Encode::JP

Encode::KR

Korean Encodings

Encode::KR::2022_KR

Internally used by Encode::KR

Encode::MIME::Header

MIME 'B' and 'Q' header encoding

Encode::MIME::Name

Internally used by Encode

Encode::PerlIO

A detailed document on Encode and PerlIO

Encode::Supported

Encodings supported by Encode

Encode::Symbol

Symbol Encodings

Encode::TW

Taiwan-based Chinese Encodings

Encode::Unicode

Various Unicode Transformation Formats

Encode::Unicode::UTF7

UTF-7 encoding

English

Use nice English (or awk) names for ugly punctuation variables

Env

Perl module that imports environment variables as scalars or arrays

Errno

System errno constants

Exporter

Implements default import method for modules

Exporter::Heavy

Exporter guts

ExtUtils::CBuilder

Compile and link C code for Perl modules

ExtUtils::CBuilder::Platform::Windows

Builder class for Windows platforms

ExtUtils::Command

Utilities to replace common UNIX commands in Makefiles etc.

ExtUtils::Command::MM

Commands for the MM's to use in Makefiles

ExtUtils::Constant

Generate XS code to import C header constants

ExtUtils::Constant::Base

Base class for ExtUtils::Constant objects

ExtUtils::Constant::Utils

Helper functions for ExtUtils::Constant

ExtUtils::Constant::XS

Generate C code for XS modules' constants.

ExtUtils::Embed

Utilities for embedding Perl in C/C++ applications

ExtUtils::Install

Install files from here to there

ExtUtils::Installed

Inventory management of installed modules

ExtUtils::Liblist

Determine libraries to use and how to use them

ExtUtils::MM

OS adjusted ExtUtils::MakeMaker subclass

ExtUtils::MM_AIX

AIX specific subclass of ExtUtils::MM_Unix

ExtUtils::MM_Any

Platform-agnostic MM methods

ExtUtils::MM_BeOS

Methods to override UN*X behaviour in ExtUtils::MakeMaker

ExtUtils::MM_Cygwin

Methods to override UN*X behaviour in ExtUtils::MakeMaker

ExtUtils::MM_DOS

DOS specific subclass of ExtUtils::MM_Unix

ExtUtils::MM_Darwin

Special behaviors for OS X

ExtUtils::MM_MacOS

Once produced Makefiles for MacOS Classic

ExtUtils::MM_NW5

Methods to override UN*X behaviour in ExtUtils::MakeMaker

ExtUtils::MM_OS2

Methods to override UN*X behaviour in ExtUtils::MakeMaker

ExtUtils::MM_QNX

QNX specific subclass of ExtUtils::MM_Unix

ExtUtils::MM_UWIN

U/WIN specific subclass of ExtUtils::MM_Unix

ExtUtils::MM_Unix

Methods used by ExtUtils::MakeMaker

ExtUtils::MM_VMS

Methods to override UN*X behaviour in ExtUtils::MakeMaker

ExtUtils::MM_VOS

VOS specific subclass of ExtUtils::MM_Unix

ExtUtils::MM_Win32

Methods to override UN*X behaviour in ExtUtils::MakeMaker

ExtUtils::MM_Win95

Method to customize MakeMaker for Win9X

ExtUtils::MY

ExtUtils::MakeMaker subclass for customization

ExtUtils::MakeMaker

Create a module Makefile

ExtUtils::MakeMaker::Config

Wrapper around Config.pm

ExtUtils::MakeMaker::FAQ

Frequently Asked Questions About MakeMaker

ExtUtils::MakeMaker::Locale

Bundled Encode::Locale

ExtUtils::MakeMaker::Tutorial

Writing a module with MakeMaker

ExtUtils::Manifest

Utilities to write and check a MANIFEST file

ExtUtils::Miniperl

Write the C code for perlmain.c

ExtUtils::Mkbootstrap

Make a bootstrap file for use by DynaLoader

ExtUtils::Mksymlists

Write linker options files for dynamic extension

ExtUtils::Packlist

Manage .packlist files

ExtUtils::ParseXS

Converts Perl XS code into C code

ExtUtils::ParseXS::Constants

Initialization values for some globals

ExtUtils::ParseXS::Eval

Clean package to evaluate code in

ExtUtils::ParseXS::Utilities

Subroutines used with ExtUtils::ParseXS

ExtUtils::Typemaps

Read/Write/Modify Perl/XS typemap files

ExtUtils::Typemaps::Cmd

Quick commands for handling typemaps

ExtUtils::Typemaps::InputMap

Entry in the INPUT section of a typemap

ExtUtils::Typemaps::OutputMap

Entry in the OUTPUT section of a typemap

ExtUtils::Typemaps::Type

Entry in the TYPEMAP section of a typemap

ExtUtils::XSSymSet

Keep sets of symbol names palatable to the VMS linker

ExtUtils::testlib

Add blib/* directories to @INC

Fatal

Replace functions with equivalents which succeed or die

Fcntl

Load the C Fcntl.h defines

File::Basename

Parse file paths into directory, filename and suffix.

File::Compare

Compare files or filehandles

File::Copy

Copy files or filehandles

File::DosGlob

DOS like globbing and then some

File::Fetch

A generic file fetching mechanism

File::Find

Traverse a directory tree.

File::Glob

Perl extension for BSD glob routine

File::GlobMapper

Extend File Glob to Allow Input and Output Files

File::Path

Create or remove directory trees

File::Spec

Portably perform operations on file names

File::Spec::AmigaOS

File::Spec for AmigaOS

File::Spec::Cygwin

Methods for Cygwin file specs

File::Spec::Epoc

Methods for Epoc file specs

File::Spec::Functions

Portably perform operations on file names

File::Spec::Mac

File::Spec for Mac OS (Classic)

File::Spec::OS2

Methods for OS/2 file specs

File::Spec::Unix

File::Spec for Unix, base for other File::Spec modules

File::Spec::VMS

Methods for VMS file specs

File::Spec::Win32

Methods for Win32 file specs

File::Temp

Return name and handle of a temporary file safely

File::stat

By-name interface to Perl's built-in stat() functions

FileCache

Keep more files open than the system permits

FileHandle

Supply object methods for filehandles

Filter::Simple

Simplified source filtering

Filter::Util::Call

Perl Source Filter Utility Module

FindBin

Locate directory of original perl script

GDBM_File

Perl5 access to the gdbm library.

Getopt::Long

Extended processing of command line options

Getopt::Std

Process single-character switches with switch clustering

HTTP::Tiny

A small, simple, correct HTTP/1.1 client

Hash::Util

A selection of general-utility hash subroutines

Hash::Util::FieldHash

Support for Inside-Out Classes

I18N::Collate

Compare 8-bit scalar data according to the current locale

I18N::LangTags

Functions for dealing with RFC3066-style language tags

I18N::LangTags::Detect

Detect the user's language preferences

I18N::LangTags::List

Tags and names for human languages

I18N::Langinfo

Query locale information

IO

Load various IO modules

IO::Compress::Base

Base Class for IO::Compress modules

IO::Compress::Bzip2

Write bzip2 files/buffers

IO::Compress::Deflate

Write RFC 1950 files/buffers

IO::Compress::FAQ

Frequently Asked Questions about IO::Compress

IO::Compress::Gzip

Write RFC 1952 files/buffers

IO::Compress::RawDeflate

Write RFC 1951 files/buffers

IO::Compress::Zip

Write zip files/buffers

IO::Dir

Supply object methods for directory handles

IO::File

Supply object methods for filehandles

IO::Handle

Supply object methods for I/O handles

IO::Pipe

Supply object methods for pipes

IO::Poll

Object interface to system poll call

IO::Seekable

Supply seek based methods for I/O objects

IO::Select

OO interface to the select system call

IO::Socket

Object interface to socket communications

IO::Socket::INET

Object interface for AF_INET domain sockets

IO::Socket::UNIX

Object interface for AF_UNIX domain sockets

IO::Uncompress::AnyInflate

Uncompress zlib-based (zip, gzip) file/buffer

IO::Uncompress::AnyUncompress

Uncompress gzip, zip, bzip2 or lzop file/buffer

IO::Uncompress::Base

Base Class for IO::Uncompress modules

IO::Uncompress::Bunzip2

Read bzip2 files/buffers

IO::Uncompress::Gunzip

Read RFC 1952 files/buffers

IO::Uncompress::Inflate

Read RFC 1950 files/buffers

IO::Uncompress::RawInflate

Read RFC 1951 files/buffers

IO::Uncompress::Unzip

Read zip files/buffers

IO::Zlib

IO:: style interface to Compress::Zlib

IPC::Cmd

Finding and running system commands made easy

IPC::Msg

SysV Msg IPC object class

IPC::Open2

Open a process for both reading and writing using open2()

IPC::Open3

Open a process for reading, writing, and error handling using open3()

IPC::Semaphore

SysV Semaphore IPC object class

IPC::SharedMem

SysV Shared Memory IPC object class

IPC::SysV

System V IPC constants and system calls

JSON::PP

JSON::XS compatible pure-Perl module.

JSON::PP::Boolean

Dummy module providing JSON::PP::Boolean

List::Util

A selection of general-utility list subroutines

List::Util::XS

Indicate if List::Util was compiled with a C compiler

Locale::Codes

A distribution of modules to handle locale codes

Locale::Codes::API

A description of the callable function in each module

Locale::Codes::Changes

Details changes to Locale::Codes

Locale::Codes::Country

Standard codes for country identification

Locale::Codes::Currency

Standard codes for currency identification

Locale::Codes::LangExt

Standard codes for language extension identification

Locale::Codes::LangFam

Standard codes for language extension identification

Locale::Codes::LangVar

Standard codes for language variation identification

Locale::Codes::Language

Standard codes for language identification

Locale::Codes::Script

Standard codes for script identification

Locale::Country

Standard codes for country identification

Locale::Currency

Standard codes for currency identification

Locale::Language

Standard codes for language identification

Locale::Maketext

Framework for localization

Locale::Maketext::Cookbook

Recipes for using Locale::Maketext

Locale::Maketext::Guts

Deprecated module to load Locale::Maketext utf8 code

Locale::Maketext::GutsLoader

Deprecated module to load Locale::Maketext utf8 code

Locale::Maketext::Simple

Simple interface to Locale::Maketext::Lexicon

Locale::Maketext::TPJ13

Article about software localization

Locale::Script

Standard codes for script identification

MIME::Base64

Encoding and decoding of base64 strings

MIME::QuotedPrint

Encoding and decoding of quoted-printable strings

Math::BigFloat

Arbitrary size floating point math package

Math::BigInt

Arbitrary size integer/float math package

Math::BigInt::Calc

Pure Perl module to support Math::BigInt

Math::BigInt::CalcEmu

Emulate low-level math with BigInt code

Math::BigInt::FastCalc

Math::BigInt::Calc with some XS for more speed

Math::BigRat

Arbitrary big rational numbers

Math::Complex

Complex numbers and associated mathematical functions

Math::Trig

Trigonometric functions

Memoize

Make functions faster by trading space for time

Memoize::AnyDBM_File

Glue to provide EXISTS for AnyDBM_File for Storable use

Memoize::Expire

Plug-in module for automatic expiration of memoized values

Memoize::ExpireFile

Test for Memoize expiration semantics

Memoize::ExpireTest

Test for Memoize expiration semantics

Memoize::NDBM_File

Glue to provide EXISTS for NDBM_File for Storable use

Memoize::SDBM_File

Glue to provide EXISTS for SDBM_File for Storable use

Memoize::Storable

Store Memoized data in Storable database

Module::CoreList

What modules shipped with versions of perl

Module::CoreList::Utils

What utilities shipped with versions of perl

Module::Load

Runtime require of both modules and files

Module::Load::Conditional

Looking up module information / loading at runtime

Module::Loaded

Mark modules as loaded or unloaded

Module::Metadata

Gather package and POD information from perl module files

NDBM_File

Tied access to ndbm files

NEXT

Provide a pseudo-class NEXT (et al) that allows method redispatch

Net::Cmd

Network Command class (as used by FTP, SMTP etc)

Net::Config

Local configuration data for libnet

Net::Domain

Attempt to evaluate the current host's internet name and domain

Net::FTP

FTP Client class

Net::FTP::dataconn

FTP Client data connection class

Net::NNTP

NNTP Client class

Net::Netrc

OO interface to users netrc file

Net::POP3

Post Office Protocol 3 Client class (RFC1939)

Net::Ping

Check a remote host for reachability

Net::SMTP

Simple Mail Transfer Protocol Client

Net::Time

Time and daytime network client interface

Net::hostent

By-name interface to Perl's built-in gethost*() functions

Net::libnetFAQ

Libnet Frequently Asked Questions

Net::netent

By-name interface to Perl's built-in getnet*() functions

Net::protoent

By-name interface to Perl's built-in getproto*() functions

Net::servent

By-name interface to Perl's built-in getserv*() functions

O

Generic interface to Perl Compiler backends

ODBM_File

Tied access to odbm files

Opcode

Disable named opcodes when compiling perl code

POSIX

Perl interface to IEEE Std 1003.1

Params::Check

A generic input parsing/checking mechanism.

Parse::CPAN::Meta

Parse META.yml and META.json CPAN metadata files

Perl::OSType

Map Perl operating system names to generic types

PerlIO

On demand loader for PerlIO layers and root of PerlIO::* name space

PerlIO::encoding

Encoding layer

PerlIO::mmap

Memory mapped IO

PerlIO::scalar

In-memory IO, scalar IO

PerlIO::via

Helper class for PerlIO layers implemented in perl

PerlIO::via::QuotedPrint

PerlIO layer for quoted-printable strings

Pod::Escapes

For resolving Pod E<...> sequences

Pod::Find

Find POD documents in directory trees

Pod::Functions

Group Perl's functions a la perlfunc.pod

Pod::Html

Module to convert pod files to HTML

Pod::InputObjects

Objects representing POD input paragraphs, commands, etc.

Pod::Man

Convert POD data to formatted *roff input

Pod::ParseLink

Parse an L<> formatting code in POD text

Pod::ParseUtils

Helpers for POD parsing and conversion

Pod::Parser

Base class for creating POD filters and translators

Pod::Perldoc

Look up Perl documentation in Pod format.

Pod::Perldoc::BaseTo

Base for Pod::Perldoc formatters

Pod::Perldoc::GetOptsOO

Customized option parser for Pod::Perldoc

Pod::Perldoc::ToANSI

Render Pod with ANSI color escapes

Pod::Perldoc::ToChecker

Let Perldoc check Pod for errors

Pod::Perldoc::ToMan

Let Perldoc render Pod as man pages

Pod::Perldoc::ToNroff

Let Perldoc convert Pod to nroff

Pod::Perldoc::ToPod

Let Perldoc render Pod as ... Pod!

Pod::Perldoc::ToRtf

Let Perldoc render Pod as RTF

Pod::Perldoc::ToTerm

Render Pod with terminal escapes

Pod::Perldoc::ToText

Let Perldoc render Pod as plaintext

Pod::Perldoc::ToTk

Let Perldoc use Tk::Pod to render Pod

Pod::Perldoc::ToXml

Let Perldoc render Pod as XML

Pod::PlainText

Convert POD data to formatted ASCII text

Pod::Select

Extract selected sections of POD from input

Pod::Simple

Framework for parsing Pod

Pod::Simple::Checker

Check the Pod syntax of a document

Pod::Simple::Debug

Put Pod::Simple into trace/debug mode

Pod::Simple::DumpAsText

Dump Pod-parsing events as text

Pod::Simple::DumpAsXML

Turn Pod into XML

Pod::Simple::HTML

Convert Pod to HTML

Pod::Simple::HTMLBatch

Convert several Pod files to several HTML files

Pod::Simple::LinkSection

Represent ``section'' attributes of L codes

Pod::Simple::Methody

Turn Pod::Simple events into method calls

Pod::Simple::PullParser

A pull-parser interface to parsing Pod

Pod::Simple::PullParserEndToken

End-tokens from Pod::Simple::PullParser

Pod::Simple::PullParserStartToken

Start-tokens from Pod::Simple::PullParser

Pod::Simple::PullParserTextToken

Text-tokens from Pod::Simple::PullParser

Pod::Simple::PullParserToken

Tokens from Pod::Simple::PullParser

Pod::Simple::RTF

Format Pod as RTF

Pod::Simple::Search

Find POD documents in directory trees

Pod::Simple::SimpleTree

Parse Pod into a simple parse tree

Pod::Simple::Subclassing

Write a formatter as a Pod::Simple subclass

Pod::Simple::Text

Format Pod as plaintext

Pod::Simple::TextContent

Get the text content of Pod

Pod::Simple::XHTML

Format Pod as validating XHTML

Pod::Simple::XMLOutStream

Turn Pod into XML

Pod::Text

Convert POD data to formatted text

Pod::Text::Color

Convert POD data to formatted color ASCII text

Pod::Text::Termcap

Convert POD data to ASCII text with format escapes

Pod::Usage

Print a usage message from embedded pod documentation

SDBM_File

Tied access to sdbm files

Safe

Compile and execute code in restricted compartments

Scalar::Util

A selection of general-utility scalar subroutines

Search::Dict

Look - search for key in dictionary file

SelectSaver

Save and restore selected file handle

SelfLoader

Load functions only on demand

Storable

Persistence for Perl data structures

Sub::Util

A selection of utility subroutines for subs and CODE references

Symbol

Manipulate Perl symbols and their names

Sys::Hostname

Try every conceivable way to get hostname

Sys::Syslog

Perl interface to the UNIX syslog(3) calls

Sys::Syslog::Win32

Win32 support for Sys::Syslog

TAP::Base

Base class that provides common functionality to TAP::Parser

TAP::Formatter::Base

Base class for harness output delegates

TAP::Formatter::Color

Run Perl test scripts with color

TAP::Formatter::Console

Harness output delegate for default console output

TAP::Formatter::Console::ParallelSession

Harness output delegate for parallel console output

TAP::Formatter::Console::Session

Harness output delegate for default console output

TAP::Formatter::File

Harness output delegate for file output

TAP::Formatter::File::Session

Harness output delegate for file output

TAP::Formatter::Session

Abstract base class for harness output delegate

TAP::Harness

Run test scripts with statistics

TAP::Harness::Env

Parsing harness related environmental variables where appropriate

TAP::Object

Base class that provides common functionality to all "TAP::*" modules

TAP::Parser

Parse TAP output

TAP::Parser::Aggregator

Aggregate TAP::Parser results

TAP::Parser::Grammar

A grammar for the Test Anything Protocol.

TAP::Parser::Iterator

Base class for TAP source iterators

TAP::Parser::Iterator::Array

Iterator for array-based TAP sources

TAP::Parser::Iterator::Process

Iterator for process-based TAP sources

TAP::Parser::Iterator::Stream

Iterator for filehandle-based TAP sources

TAP::Parser::IteratorFactory

Figures out which SourceHandler objects to use for a given Source

TAP::Parser::Multiplexer

Multiplex multiple TAP::Parsers

TAP::Parser::Result

Base class for TAP::Parser output objects

TAP::Parser::Result::Bailout

Bailout result token.

TAP::Parser::Result::Comment

Comment result token.

TAP::Parser::Result::Plan

Plan result token.

TAP::Parser::Result::Pragma

TAP pragma token.

TAP::Parser::Result::Test

Test result token.

TAP::Parser::Result::Unknown

Unknown result token.

TAP::Parser::Result::Version

TAP syntax version token.

TAP::Parser::Result::YAML

YAML result token.

TAP::Parser::ResultFactory

Factory for creating TAP::Parser output objects

TAP::Parser::Scheduler

Schedule tests during parallel testing

TAP::Parser::Scheduler::Job

A single testing job.

TAP::Parser::Scheduler::Spinner

A no-op job.

TAP::Parser::Source

A TAP source & meta data about it

TAP::Parser::SourceHandler

Base class for different TAP source handlers

TAP::Parser::SourceHandler::Executable

Stream output from an executable TAP source

TAP::Parser::SourceHandler::File

Stream TAP from a text file.

TAP::Parser::SourceHandler::Handle

Stream TAP from an IO::Handle or a GLOB.

TAP::Parser::SourceHandler::Perl

Stream TAP from a Perl executable

TAP::Parser::SourceHandler::RawTAP

Stream output from raw TAP in a scalar/array ref.

TAP::Parser::YAMLish::Reader

Read YAMLish data from iterator

TAP::Parser::YAMLish::Writer

Write YAMLish data

Term::ANSIColor

Color screen output using ANSI escape sequences

Term::Cap

Perl termcap interface

Term::Complete

Perl word completion module

Term::ReadLine

Perl interface to various "readline" packages.

Test

Provides a simple framework for writing test scripts

Test::Builder

Backend for building test libraries

Test::Builder::IO::Scalar

A copy of IO::Scalar for Test::Builder

Test::Builder::Module

Base class for test modules

Test::Builder::Tester

Test testsuites that have been built with

Test::Builder::Tester::Color

Turn on colour in Test::Builder::Tester

Test::Harness

Run Perl standard test scripts with statistics

Test::Harness::Beyond

Beyond make test

Test::More

Yet another framework for writing test scripts

Test::Simple

Basic utilities for writing tests.

Test::Tester

Ease testing test modules built with Test::Builder

Test::Tester::Capture

Help testing test modules built with Test::Builder

Test::Tester::CaptureRunner

Help testing test modules built with Test::Builder

Test::Tutorial

A tutorial about writing really basic tests

Test::use::ok

Alternative to Test::More::use_ok

Text::Abbrev

Abbrev - create an abbreviation table from a list

Text::Balanced

Extract delimited text sequences from strings.

Text::ParseWords

Parse text into an array of tokens or array of arrays

Text::Tabs

Expand and unexpand tabs like unix expand(1) and unexpand(1)

Text::Wrap

Line wrapping to form simple paragraphs

Thread

Manipulate threads in Perl (for old code only)

Thread::Queue

Thread-safe queues

Thread::Semaphore

Thread-safe semaphores

Tie::Array

Base class for tied arrays

Tie::File

Access the lines of a disk file via a Perl array

Tie::Handle

Base class definitions for tied handles

Tie::Hash

Base class definitions for tied hashes

Tie::Hash::NamedCapture

Named regexp capture buffers

Tie::Memoize

Add data to hash when needed

Tie::RefHash

Use references as hash keys

Tie::Scalar

Base class definitions for tied scalars

Tie::StdHandle

Base class definitions for tied handles

Tie::SubstrHash

Fixed-table-size, fixed-key-length hashing

Time::HiRes

High resolution alarm, sleep, gettimeofday, interval timers

Time::Local

Efficiently compute time from local and GMT time

Time::Piece

Object Oriented time objects

Time::Seconds

A simple API to convert seconds to other date values

Time::gmtime

By-name interface to Perl's built-in gmtime() function

Time::localtime

By-name interface to Perl's built-in localtime() function

Time::tm

Internal object used by Time::gmtime and Time::localtime

UNIVERSAL

Base class for ALL classes (blessed references)

Unicode::Collate

Unicode Collation Algorithm

Unicode::Collate::CJK::Big5

Weighting CJK Unified Ideographs

Unicode::Collate::CJK::GB2312

Weighting CJK Unified Ideographs

Unicode::Collate::CJK::JISX0208

Weighting JIS KANJI for Unicode::Collate

Unicode::Collate::CJK::Korean

Weighting CJK Unified Ideographs

Unicode::Collate::CJK::Pinyin

Weighting CJK Unified Ideographs

Unicode::Collate::CJK::Stroke

Weighting CJK Unified Ideographs

Unicode::Collate::CJK::Zhuyin

Weighting CJK Unified Ideographs

Unicode::Collate::Locale

Linguistic tailoring for DUCET via Unicode::Collate

Unicode::Normalize

Unicode Normalization Forms

Unicode::UCD

Unicode character database

User::grent

By-name interface to Perl's built-in getgr*() functions

User::pwent

By-name interface to Perl's built-in getpw*() functions

VMS::DCLsym

Perl extension to manipulate DCL symbols

VMS::Filespec

Convert between VMS and Unix file specification syntax

VMS::Stdio

Standard I/O functions via VMS extensions

Win32

Interfaces to some Win32 API Functions

Win32API::File

Low-level access to Win32 system API calls for files/dirs.

Win32CORE

Win32 CORE function stubs

XS::APItest

Test the perl C API

XS::Typemap

Module to test the XS typemaps distributed with perl

XSLoader

Dynamically load C libraries into Perl code

autodie::Scope::Guard

Wrapper class for calling subs at end of scope

autodie::Scope::GuardStack

 Hook stack for managing scopes via %^H

autodie::Util

Internal Utility subroutines for autodie and Fatal

version::Internals

Perl extension for Version Objects

To find out all modules installed on your system, including those without documentation or outside the standard release, just use the following command (under the default win32 shell, double quotes should be used instead of single quotes).

    % perl -MFile::Find=find -MFile::Spec::Functions -Tlwe \
      'find { wanted => sub { print canonpath $_ if /\.pm\z/ },
      no_chdir => 1 }, @INC'

(The -T is here to prevent '.' from being listed in @INC.) They should all have their own documentation installed and accessible via your system man(1) command. If you do not have a find program, you can use the Perl find2perl program instead, which generates Perl code as output you can run through perl. If you have a man program but it doesn't find your modules, you'll have to fix your manpath. See perl for details. If you have no system man command, you might try the perldoc program.

Note also that the command "perldoc perllocal" gives you a (possibly incomplete) list of the modules that have been further installed on your system. (The perllocal.pod file is updated by the standard MakeMaker install process.)

Extension Modules

Extension modules are written in C (or a mix of Perl and C). They are usually dynamically loaded into Perl if and when you need them, but may also be linked in statically. Supported extension modules include Socket, Fcntl, and POSIX.

Many popular C extension modules do not come bundled (at least, not completely) due to their sizes, volatility, or simply lack of time for adequate testing and configuration across the multitude of platforms on which Perl was beta-tested. You are encouraged to look for them on CPAN (described below), or using web search engines like Alta Vista or Google.

CPAN

CPAN stands for Comprehensive Perl Archive Network; it's a globally replicated trove of Perl materials, including documentation, style guides, tricks and traps, alternate ports to non-Unix systems and occasional binary distributions for these. Search engines for CPAN can be found at http://www.cpan.org/

Most importantly, CPAN includes around a thousand unbundled modules, some of which require a C compiler to build. Major categories of modules are:

*: Language Extensions and Documentation Tools
*: Development Support
*: Operating System Interfaces
*: Networking, Device Control (modems) and InterProcess Communication
*: Data Types and Data Type Utilities
*: Database Interfaces
*: User Interfaces
*: Interfaces to / Emulations of Other Programming Languages
*: File Names, File Systems and File Locking (see also File Handles)
*: String Processing, Language Text Processing, Parsing, and Searching
*: Option, Argument, Parameter, and Configuration File Processing
*: Internationalization and Locale
*: Authentication, Security, and Encryption
*: World Wide Web, HTML, HTTP, CGI, MIME
*: Server and Daemon Utilities
*: Archiving and Compression
*: Images, Pixmap and Bitmap Manipulation, Drawing, and Graphing
*: Mail and Usenet News
*: Control Flow Utilities (callbacks and exceptions etc)
*: File Handle and Input/Output Stream Utilities
*: Miscellaneous Modules

The list of the registered CPAN sites follows. Please note that the sorting order is alphabetical on fields:

and thus the North American servers happen to be listed between the European and the South American sites.

Registered CPAN sites

Africa

South Africa

  http://cpan.mirror.ac.za/
  ftp://cpan.mirror.ac.za/
  http://mirror.is.co.za/pub/cpan/
  ftp://ftp.is.co.za/pub/cpan/
  ftp://ftp.saix.net/pub/CPAN/

Asia

China

  http://cpan.wenzk.com/

Hong Kong

  http://ftp.cuhk.edu.hk/pub/packages/perl/CPAN/
  ftp://ftp.cuhk.edu.hk/pub/packages/perl/CPAN/
  http://mirrors.geoexpat.com/cpan/

India

  http://perlmirror.indialinks.com/

Indonesia

  http://cpan.biz.net.id/
  http://komo.vlsm.org/CPAN/
  ftp://komo.vlsm.org/CPAN/
  http://cpan.cermin.lipi.go.id/
  ftp://cermin.lipi.go.id/pub/CPAN/
  http://cpan.pesat.net.id/

Japan

  ftp://ftp.u-aizu.ac.jp/pub/CPAN
  ftp://ftp.kddilabs.jp/CPAN/
  http://ftp.nara.wide.ad.jp/pub/CPAN/
  ftp://ftp.nara.wide.ad.jp/pub/CPAN/
  http://ftp.jaist.ac.jp/pub/CPAN/
  ftp://ftp.jaist.ac.jp/pub/CPAN/
  ftp://ftp.dti.ad.jp/pub/lang/CPAN/
  ftp://ftp.ring.gr.jp/pub/lang/perl/CPAN/
  http://ftp.riken.jp/lang/CPAN/
  ftp://ftp.riken.jp/lang/CPAN/
  http://ftp.yz.yamagata-u.ac.jp/pub/lang/cpan/
  ftp://ftp.yz.yamagata-u.ac.jp/pub/lang/cpan/

Republic of Korea

  http://ftp.kaist.ac.kr/pub/CPAN
  ftp://ftp.kaist.ac.kr/pub/CPAN
  http://cpan.mirror.cdnetworks.com/
  ftp://cpan.mirror.cdnetworks.com/CPAN/
  http://cpan.sarang.net/
  ftp://cpan.sarang.net/CPAN/

Russia

  http://cpan.tomsk.ru/
  ftp://cpan.tomsk.ru/

Singapore

  http://mirror.averse.net/pub/CPAN
  ftp://mirror.averse.net/pub/CPAN
  http://cpan.mirror.choon.net/
  http://cpan.oss.eznetsols.org
  ftp://ftp.oss.eznetsols.org/cpan

Taiwan

  http://ftp.cse.yzu.edu.tw/pub/CPAN/
  ftp://ftp.cse.yzu.edu.tw/pub/CPAN/
  http://cpan.nctu.edu.tw/
  ftp://cpan.nctu.edu.tw/
  ftp://ftp.ncu.edu.tw/CPAN/
  http://cpan.cdpa.nsysu.edu.tw/
  ftp://cpan.cdpa.nsysu.edu.tw/Unix/Lang/CPAN/
  http://cpan.stu.edu.tw
  ftp://ftp.stu.edu.tw/CPAN
  http://ftp.stu.edu.tw/CPAN
  ftp://ftp.stu.edu.tw/pub/CPAN
  http://cpan.cs.pu.edu.tw/
  ftp://cpan.cs.pu.edu.tw/pub/CPAN

Thailand

  http://mirrors.issp.co.th/cpan/
  ftp://mirrors.issp.co.th/cpan/
  http://mirror.yourconnect.com/CPAN/
  ftp://mirror.yourconnect.com/CPAN/

Turkey

  http://cpan.gazi.edu.tr/

Central America

Costa Rica

  http://mirrors.ucr.ac.cr/CPAN/
  ftp://mirrors.ucr.ac.cr/CPAN/

Europe

Austria

  http://cpan.inode.at/
  ftp://cpan.inode.at
  http://gd.tuwien.ac.at/languages/perl/CPAN/
  ftp://gd.tuwien.ac.at/pub/CPAN/

Belgium

  http://ftp.belnet.be/mirror/ftp.cpan.org/
  ftp://ftp.belnet.be/mirror/ftp.cpan.org/
  http://ftp.easynet.be/pub/CPAN/
  http://cpan.weepee.org/

Bosnia and Herzegovina

  http://cpan.blic.net/

Bulgaria

  http://cpan.cbox.biz/
  ftp://cpan.cbox.biz/cpan/
  http://cpan.digsys.bg/
  ftp://ftp.digsys.bg/pub/CPAN

Croatia

  http://ftp.carnet.hr/pub/CPAN/
  ftp://ftp.carnet.hr/pub/CPAN/

Czech Republic

  ftp://ftp.fi.muni.cz/pub/CPAN/
  http://archive.cpan.cz/

Denmark

  http://mirrors.dotsrc.org/cpan
  ftp://mirrors.dotsrc.org/cpan/
  http://www.cpan.dk/
  http://mirror.uni-c.dk/pub/CPAN/

Finland

  ftp://ftp.funet.fi/pub/languages/perl/CPAN/
  http://mirror.eunet.fi/CPAN

France

  http://cpan.enstimac.fr/
  ftp://ftp.inria.fr/pub/CPAN/
  http://distrib-coffee.ipsl.jussieu.fr/pub/mirrors/cpan/
  ftp://distrib-coffee.ipsl.jussieu.fr/pub/mirrors/cpan/
  ftp://ftp.lip6.fr/pub/perl/CPAN/
  http://mir2.ovh.net/ftp.cpan.org
  ftp://mir1.ovh.net/ftp.cpan.org
  ftp://ftp.oleane.net/pub/CPAN/
  http://ftp.crihan.fr/mirrors/ftp.cpan.org/
  ftp://ftp.crihan.fr/mirrors/ftp.cpan.org/
  http://ftp.u-strasbg.fr/CPAN
  ftp://ftp.u-strasbg.fr/CPAN
  http://cpan.cict.fr/
  ftp://cpan.cict.fr/pub/CPAN/

Germany

  ftp://ftp.fu-berlin.de/unix/languages/perl/
  http://mirrors.softliste.de/cpan/
  ftp://ftp.rub.de/pub/CPAN/
  http://www.planet-elektronik.de/CPAN/
  http://ftp.hosteurope.de/pub/CPAN/
  ftp://ftp.hosteurope.de/pub/CPAN/
  http://www.mirrorspace.org/cpan/
  http://mirror.netcologne.de/cpan/
  ftp://mirror.netcologne.de/cpan/
  ftp://ftp.freenet.de/pub/ftp.cpan.org/pub/CPAN/
  http://ftp-stud.hs-esslingen.de/pub/Mirrors/CPAN/
  ftp://ftp-stud.hs-esslingen.de/pub/Mirrors/CPAN/
  http://mirrors.zerg.biz/cpan/
  http://ftp.gwdg.de/pub/languages/perl/CPAN/
  ftp://ftp.gwdg.de/pub/languages/perl/CPAN/
  http://dl.ambiweb.de/mirrors/ftp.cpan.org/
  http://cpan.mirror.clusters.kg/
  http://cpan.mirror.iphh.net/
  ftp://cpan.mirror.iphh.net/pub/CPAN/
  http://cpan.mirroring.de/
  http://mirror.informatik.uni-mannheim.de/pub/mirrors/CPAN/
  ftp://mirror.informatik.uni-mannheim.de/pub/mirrors/CPAN/
  http://www.chemmedia.de/mirrors/CPAN/
  http://ftp.cw.net/pub/CPAN/
  ftp://ftp.cw.net/pub/CPAN/
  http://cpan.cpantesters.org/
  ftp://cpan.cpantesters.org/CPAN/
  http://cpan.mirrored.de/
  ftp://mirror.petamem.com/CPAN/
  http://cpan.noris.de/
  ftp://cpan.noris.de/pub/CPAN/
  ftp://ftp.mpi-sb.mpg.de/pub/perl/CPAN/
  ftp://ftp.gmd.de/mirrors/CPAN/

Greece

  ftp://ftp.forthnet.gr/pub/languages/perl/CPAN
  ftp://ftp.ntua.gr/pub/lang/perl/
  http://cpan.cc.uoc.gr/
  ftp://ftp.cc.uoc.gr/mirrors/CPAN/

Hungary

  http://cpan.mirrors.enexis.hu/
  ftp://cpan.mirrors.enexis.hu/mirrors/cpan/
  http://cpan.hu/

Iceland

  http://ftp.rhnet.is/pub/CPAN/
  ftp://ftp.rhnet.is/pub/CPAN/

Ireland

  http://ftp.esat.net/pub/languages/perl/CPAN/
  ftp://ftp.esat.net/pub/languages/perl/CPAN/
  http://ftp.heanet.ie/mirrors/ftp.perl.org/pub/CPAN
  ftp://ftp.heanet.ie/mirrors/ftp.perl.org/pub/CPAN

Italy

  http://bo.mirror.garr.it/mirrors/CPAN/
  http://cpan.panu.it/
  ftp://ftp.panu.it/pub/mirrors/perl/CPAN/

Latvia

  http://kvin.lv/pub/CPAN/

Lithuania

  http://ftp.litnet.lt/pub/CPAN/
  ftp://ftp.litnet.lt/pub/CPAN/

Malta

  http://cpan.waldonet.net.mt/

Netherlands

  ftp://ftp.quicknet.nl/pub/CPAN/
  http://mirror.hostfuss.com/CPAN/
  ftp://mirror.hostfuss.com/CPAN/
  http://mirrors3.kernel.org/cpan/
  ftp://mirrors3.kernel.org/pub/CPAN/
  http://cpan.mirror.versatel.nl/
  ftp://ftp.mirror.versatel.nl/cpan/
  ftp://download.xs4all.nl/pub/mirror/CPAN/
  http://mirror.leaseweb.com/CPAN/
  ftp://mirror.leaseweb.com/CPAN/
  ftp://ftp.cpan.nl/pub/CPAN/
  http://archive.cs.uu.nl/mirror/CPAN/
  ftp://ftp.cs.uu.nl/mirror/CPAN/
  http://luxitude.net/cpan/

Norway

  ftp://ftp.uninett.no/pub/languages/perl/CPAN
  ftp://ftp.uit.no/pub/languages/perl/cpan/

Poland

  http://piotrkosoft.net/pub/mirrors/CPAN/
  ftp://ftp.piotrkosoft.net/pub/mirrors/CPAN/
  http://ftp.man.poznan.pl/pub/CPAN
  ftp://ftp.man.poznan.pl/pub/CPAN
  ftp://ftp.ps.pl/pub/CPAN/
  ftp://sunsite.icm.edu.pl/pub/CPAN/
  ftp://ftp.tpnet.pl/d4/CPAN/

Portugal

  http://cpan.dei.uc.pt/
  ftp://ftp.dei.uc.pt/pub/CPAN
  ftp://ftp.ist.utl.pt/pub/CPAN/
  http://cpan.perl.pt/
  http://cpan.ip.pt/
  ftp://cpan.ip.pt/pub/cpan/
  http://mirrors.nfsi.pt/CPAN/
  ftp://mirrors.nfsi.pt/pub/CPAN/
  http://cpan.dcc.fc.up.pt/

Romania

  http://ftp.astral.ro/pub/CPAN/
  ftp://ftp.astral.ro/pub/CPAN/
  ftp://ftp.lug.ro/CPAN
  http://mirrors.xservers.ro/CPAN/
  http://mirrors.hostingromania.ro/ftp.cpan.org/
  ftp://ftp.hostingromania.ro/mirrors/ftp.cpan.org/
  ftp://ftp.iasi.roedu.net/pub/mirrors/ftp.cpan.org/

Russia

  ftp://ftp.aha.ru/CPAN/
  http://cpan.rinet.ru/
  ftp://cpan.rinet.ru/pub/mirror/CPAN/
  ftp://ftp.SpringDaemons.com/pub/CPAN/
  http://mirror.rol.ru/CPAN/
  http://ftp.silvernet.ru/CPAN/
  http://ftp.spbu.ru/CPAN/
  ftp://ftp.spbu.ru/CPAN/

Slovakia

  http://cpan.fyxm.net/

Slovenia

  http://www.klevze.si/cpan

Spain

  http://osl.ugr.es/CPAN/
  ftp://ftp.rediris.es/mirror/CPAN/
  http://ftp.gui.uva.es/sites/cpan.org/
  ftp://ftp.gui.uva.es/sites/cpan.org/

Sweden

  http://mirrors4.kernel.org/cpan/
  ftp://mirrors4.kernel.org/pub/CPAN/

Switzerland

  http://cpan.mirror.solnet.ch/
  ftp://ftp.solnet.ch/mirror/CPAN/
  ftp://ftp.adwired.ch/CPAN/
  http://mirror.switch.ch/ftp/mirror/CPAN/
  ftp://mirror.switch.ch/mirror/CPAN/

Ukraine

  http://cpan.makeperl.org/
  ftp://cpan.makeperl.org/pub/CPAN
  http://cpan.org.ua/
  http://cpan.gafol.net/
  ftp://ftp.gafol.net/pub/cpan/

United Kingdom

  http://www.mirrorservice.org/sites/ftp.funet.fi/pub/languages/perl/CPAN/
  ftp://ftp.mirrorservice.org/sites/ftp.funet.fi/pub/languages/perl/CPAN/
  http://mirror.tje.me.uk/pub/mirrors/ftp.cpan.org/
  ftp://mirror.tje.me.uk/pub/mirrors/ftp.cpan.org/
  http://www.mirror.8086.net/sites/CPAN/
  ftp://ftp.mirror.8086.net/sites/CPAN/
  http://cpan.mirror.anlx.net/
  ftp://ftp.mirror.anlx.net/CPAN/
  http://mirror.bytemark.co.uk/CPAN/
  ftp://mirror.bytemark.co.uk/CPAN/
  http://cpan.etla.org/
  ftp://cpan.etla.org/pub/CPAN
  ftp://ftp.demon.co.uk/pub/CPAN/
  http://mirror.sov.uk.goscomb.net/CPAN/
  ftp://mirror.sov.uk.goscomb.net/pub/CPAN/
  http://ftp.plig.net/pub/CPAN/
  ftp://ftp.plig.net/pub/CPAN/
  http://ftp.ticklers.org/pub/CPAN/
  ftp://ftp.ticklers.org/pub/CPAN/
  http://cpan.mirrors.uk2.net/
  ftp://mirrors.uk2.net/pub/CPAN/
  http://mirror.ox.ac.uk/sites/www.cpan.org/
  ftp://mirror.ox.ac.uk/sites/www.cpan.org/

North America

Bahamas

  http://www.securehost.com/mirror/CPAN/

Canada

  http://cpan.arcticnetwork.ca
  ftp://mirror.arcticnetwork.ca/pub/CPAN
  http://cpan.sunsite.ualberta.ca/
  ftp://cpan.sunsite.ualberta.ca/pub/CPAN/
  http://theoryx5.uwinnipeg.ca/pub/CPAN/
  ftp://theoryx5.uwinnipeg.ca/pub/CPAN/
  http://arwen.cs.dal.ca/mirror/CPAN/
  ftp://arwen.cs.dal.ca/pub/mirror/CPAN/
  http://CPAN.mirror.rafal.ca/
  ftp://CPAN.mirror.rafal.ca/pub/CPAN/
  ftp://ftp.nrc.ca/pub/CPAN/
  http://mirror.csclub.uwaterloo.ca/pub/CPAN/
  ftp://mirror.csclub.uwaterloo.ca/pub/CPAN/

Mexico

  http://www.msg.com.mx/CPAN/
  ftp://ftp.msg.com.mx/pub/CPAN/

United States

Alabama

  http://mirror.hiwaay.net/CPAN/
  ftp://mirror.hiwaay.net/CPAN/

Arizona

  http://cpan.ezarticleinformation.com/

California

  http://cpan.knowledgematters.net/
  http://cpan.binkerton.com/
  http://cpan.develooper.com/
  http://mirrors.gossamer-threads.com/CPAN
  http://cpan.schatt.com/
  http://mirrors.kernel.org/cpan/
  ftp://mirrors.kernel.org/pub/CPAN
  http://mirrors2.kernel.org/cpan/
  ftp://mirrors2.kernel.org/pub/CPAN/
  http://cpan.mirror.facebook.net/
  http://mirrors1.kernel.org/cpan/
  ftp://mirrors1.kernel.org/pub/CPAN/
  http://cpan-sj.viaverio.com/
  ftp://cpan-sj.viaverio.com/pub/CPAN/
  http://www.perl.com/CPAN/

Florida

  ftp://ftp.cise.ufl.edu/pub/mirrors/CPAN/
  http://mirror.atlantic.net/pub/CPAN/
  ftp://mirror.atlantic.net/pub/CPAN/

Idaho

  http://mirror.its.uidaho.edu/pub/cpan/
  ftp://mirror.its.uidaho.edu/cpan/

Illinois

  http://cpan.mirrors.hoobly.com/
  http://cpan.uchicago.edu/pub/CPAN/
  ftp://cpan.uchicago.edu/pub/CPAN/
  http://mirrors.servercentral.net/CPAN/
  http://www.stathy.com/CPAN/
  ftp://www.stathy.com/CPAN/

Indiana

  ftp://ftp.uwsg.iu.edu/pub/perl/CPAN/
  http://cpan.netnitco.net/
  ftp://cpan.netnitco.net/pub/mirrors/CPAN/
  http://ftp.ndlug.nd.edu/pub/perl/
  ftp://ftp.ndlug.nd.edu/pub/perl/

Massachusetts

  http://mirrors.ccs.neu.edu/CPAN/

Michigan

  http://ftp.wayne.edu/cpan/
  ftp://ftp.wayne.edu/cpan/

Minnesota

  http://cpan.msi.umn.edu/

New Jersey

  http://mirror.datapipe.net/CPAN/
  ftp://mirror.datapipe.net/pub/CPAN/

New York

  http://mirrors.24-7-solutions.net/pub/CPAN/
  ftp://mirrors.24-7-solutions.net/pub/CPAN/
  http://mirror.cc.columbia.edu/pub/software/cpan/
  ftp://mirror.cc.columbia.edu/pub/software/cpan/
  http://cpan.belfry.net/
  http://cpan.erlbaum.net/
  ftp://cpan.erlbaum.net/CPAN/
  http://cpan.hexten.net/
  ftp://cpan.hexten.net/
  ftp://mirror.nyi.net/CPAN/
  http://mirror.rit.edu/CPAN/
  ftp://mirror.rit.edu/CPAN/

North Carolina

  http://www.ibiblio.org/pub/mirrors/CPAN
  ftp://ftp.ncsu.edu/pub/mirror/CPAN/

Oregon

  http://ftp.osuosl.org/pub/CPAN/
  ftp://ftp.osuosl.org/pub/CPAN/

Pennsylvania

  http://ftp.epix.net/CPAN/
  ftp://ftp.epix.net/pub/languages/perl/
  http://cpan.pair.com/
  ftp://cpan.pair.com/pub/CPAN/

South Carolina

  http://cpan.mirror.clemson.edu/

Tennessee

  http://mira.sunsite.utk.edu/CPAN/

Texas

  http://mirror.uta.edu/CPAN

Utah

  ftp://mirror.xmission.com/CPAN/

Virginia

  http://cpan-du.viaverio.com/
  ftp://cpan-du.viaverio.com/pub/CPAN/
  http://perl.secsup.org/
  ftp://perl.secsup.org/pub/perl/
  ftp://mirror.cogentco.com/pub/CPAN/

Washington

  http://cpan.llarian.net/
  ftp://cpan.llarian.net/pub/CPAN/
  ftp://ftp-mirror.internap.com/pub/CPAN/

Wisconsin

  http://cpan.mirrors.tds.net
  ftp://cpan.mirrors.tds.net/pub/CPAN
  http://mirror.sit.wisc.edu/pub/CPAN/
  ftp://mirror.sit.wisc.edu/pub/CPAN/

Oceania

Australia

  http://mirror.internode.on.net/pub/cpan/
  ftp://mirror.internode.on.net/pub/cpan/
  http://cpan.mirror.aussiehq.net.au/
  http://mirror.as24220.net/cpan/
  ftp://mirror.as24220.net/cpan/

New Zealand

  ftp://ftp.auckland.ac.nz/pub/perl/CPAN/
  http://cpan.inspire.net.nz
  ftp://cpan.inspire.net.nz/cpan
  http://cpan.catalyst.net.nz/CPAN/
  ftp://cpan.catalyst.net.nz/pub/CPAN/

South America

Argentina

  http://cpan.patan.com.ar/
  http://cpan.localhost.net.ar
  ftp://mirrors.localhost.net.ar/pub/mirrors/CPAN

Brazil

  ftp://cpan.pop-mg.com.br/pub/CPAN/
  http://ftp.pucpr.br/CPAN
  ftp://ftp.pucpr.br/CPAN
  http://cpan.kinghost.net/

Chile

  http://cpan.dcc.uchile.cl/
  ftp://cpan.dcc.uchile.cl/pub/lang/cpan/

Colombia

  http://www.laqee.unal.edu.co/CPAN/

RSYNC Mirrors

                      mirror.as24220.net::cpan
                      cpan.inode.at::CPAN
                      gd.tuwien.ac.at::CPAN
                      ftp.belnet.be::packages/cpan
                      rsync.linorg.usp.br::CPAN
                      rsync.arcticnetwork.ca::CPAN
                      CPAN.mirror.rafal.ca::CPAN
                      mirror.csclub.uwaterloo.ca::CPAN
                      theoryx5.uwinnipeg.ca::CPAN
                      www.laqee.unal.edu.co::CPAN
                      mirror.uni-c.dk::CPAN
                      rsync.nic.funet.fi::CPAN
                      rsync://distrib-coffee.ipsl.jussieu.fr/pub/mirrors/cpan/
                      mir1.ovh.net::CPAN
                      miroir-francais.fr::cpan
                      ftp.crihan.fr::CPAN
                      rsync://mirror.cict.fr/cpan/
                      rsync://mirror.netcologne.de/cpan/
                      ftp-stud.hs-esslingen.de::CPAN/
                      ftp.gwdg.de::FTP/languages/perl/CPAN/
                      cpan.mirror.iphh.net::CPAN
                      cpan.cpantesters.org::cpan
                      cpan.hu::CPAN
                      komo.vlsm.org::CPAN
                      mirror.unej.ac.id::cpan
                      ftp.esat.net::/pub/languages/perl/CPAN
                      ftp.heanet.ie::mirrors/ftp.perl.org/pub/CPAN
                      rsync.panu.it::CPAN
                      cpan.fastbull.org::CPAN
                      ftp.kddilabs.jp::cpan
                      ftp.nara.wide.ad.jp::cpan/
                      rsync://ftp.jaist.ac.jp/pub/CPAN/
                      rsync://ftp.riken.jp/cpan/
                      mirror.linuxiso.kz::CPAN
                      rsync://mirrors3.kernel.org/mirrors/CPAN/
                      rsync://rsync.osmirror.nl/cpan/
                      mirror.leaseweb.com::CPAN
                      cpan.nautile.nc::CPAN
                      mirror.icis.pcz.pl::CPAN
                      piotrkosoft.net::mirrors/CPAN
                      rsync://cpan.perl.pt/
                      ftp.kaist.ac.kr::cpan
                      cpan.sarang.net::CPAN
                      mirror.averse.net::cpan
                      rsync.oss.eznetsols.org
                      mirror.ac.za::cpan
                      ftp.is.co.za::IS-Mirror/ftp.cpan.org/
                      rsync://ftp.gui.uva.es/cpan/
                      rsync://mirrors4.kernel.org/mirrors/CPAN/
                      ftp.solnet.ch::CPAN
                      ftp.ulak.net.tr::CPAN
                      gafol.net::cpan
                      rsync.mirrorservice.org::ftp.funet.fi/pub/
                      rsync://rsync.mirror.8086.net/CPAN/
                      rsync.mirror.anlx.net::CPAN
                      mirror.bytemark.co.uk::CPAN
                      ftp.plig.net::CPAN
                      rsync://ftp.ticklers.org:CPAN/
                      mirrors.ibiblio.org::CPAN
                      cpan-du.viaverio.com::CPAN
                      mirror.hiwaay.net::CPAN
                      rsync://mira.sunsite.utk.edu/CPAN/
                      cpan.mirrors.tds.net::CPAN
                      mirror.its.uidaho.edu::cpan
                      rsync://mirror.cc.columbia.edu::cpan/
                      ftp.fxcorporate.com::CPAN
                      rsync.atlantic.net::CPAN
                      mirrors.kernel.org::mirrors/CPAN
                      rsync://mirrors2.kernel.org/mirrors/CPAN/
                      cpan.pair.com::CPAN
                      rsync://mirror.rit.edu/CPAN/
                      rsync://mirror.facebook.net/cpan/
                      rsync://mirrors1.kernel.org/mirrors/CPAN/
                      cpan-sj.viaverio.com::CPAN

For an up-to-date listing of CPAN sites, see http://www.cpan.org/SITES or ftp://www.cpan.org/SITES .

Modules: Creation, Use, and Abuse

(The following section is borrowed directly from Tim Bunce's modules file, available at your nearest CPAN site.)

Perl implements a class using a package, but the presence of a package doesn't imply the presence of a class. A package is just a namespace. A class is a package that provides subroutines that can be used as methods. A method is just a subroutine that expects, as its first argument, either the name of a package (for ``static'' methods), or a reference to something (for ``virtual'' methods).

A module is a file that (by convention) provides a class of the same name (sans the .pm), plus an import method in that class that can be called to fetch exported symbols. This module may implement some of its methods by loading dynamic C or C++ objects, but that should be totally transparent to the user of the module. Likewise, the module might set up an AUTOLOAD function to slurp in subroutine definitions on demand, but this is also transparent. Only the .pm file is required to exist. See perlsub, perlobj, and AutoLoader for details about the AUTOLOAD mechanism.

Guidelines for Module Creation

*

Do similar modules already exist in some form?

If so, please try to reuse the existing modules either in whole or by inheriting useful features into a new class. If this is not practical try to get together with the module authors to work on extending or enhancing the functionality of the existing modules. A perfect example is the plethora of packages in perl4 for dealing with command line options.

If you are writing a module to expand an already existing set of modules, please coordinate with the author of the package. It helps if you follow the same naming scheme and module interaction scheme as the original author.

*

Try to design the new module to be easy to extend and reuse.

Try to "use warnings;" (or "use warnings qw(...);"). Remember that you can add "no warnings qw(...);" to individual blocks of code that need less warnings.

Use blessed references. Use the two argument form of bless to bless into the class name given as the first parameter of the constructor, e.g.,:

 sub new {
     my $class = shift;
     return bless {}, $class;
 }

or even this if you'd like it to be used as either a static or a virtual method.

 sub new {
     my $self  = shift;
     my $class = ref($self) || $self;
     return bless {}, $class;
 }

Pass arrays as references so more parameters can be added later (it's also faster). Convert functions into methods where appropriate. Split large methods into smaller more flexible ones. Inherit methods from other modules if appropriate.

Avoid class name tests like: "die "Invalid" unless ref $ref eq 'FOO'". Generally you can delete the "eq 'FOO'" part with no harm at all. Let the objects look after themselves! Generally, avoid hard-wired class names as far as possible.

Avoid "$r->Class::func()" where using "@ISA=qw(... Class ...)" and "$r->func()" would work.

Use autosplit so little used or newly added functions won't be a burden to programs that don't use them. Add test functions to the module after __END__ either using AutoSplit or by saying:

 eval join('',<main::DATA>) || die $@ unless caller();

Does your module pass the 'empty subclass' test? If you say "@SUBCLASS::ISA = qw(YOURCLASS);" your applications should be able to use SUBCLASS in exactly the same way as YOURCLASS. For example, does your application still work if you change: "$obj = YOURCLASS->new();" into: "$obj = SUBCLASS->new();" ?

Avoid keeping any state information in your packages. It makes it difficult for multiple other packages to use yours. Keep state information in objects.

Always use -w.

Try to "use strict;" (or "use strict qw(...);"). Remember that you can add "no strict qw(...);" to individual blocks of code that need less strictness.

Always use -w.

Follow the guidelines in perlstyle.

Always use -w.

*

Some simple style guidelines

The perlstyle manual supplied with Perl has many helpful points.

Coding style is a matter of personal taste. Many people evolve their style over several years as they learn what helps them write and maintain good code. Here's one set of assorted suggestions that seem to be widely used by experienced developers:

Use underscores to separate words. It is generally easier to read $var_names_like_this than $VarNamesLikeThis, especially for non-native speakers of English. It's also a simple rule that works consistently with VAR_NAMES_LIKE_THIS.

Package/Module names are an exception to this rule. Perl informally reserves lowercase module names for 'pragma' modules like integer and strict. Other modules normally begin with a capital letter and use mixed case with no underscores (need to be short and portable).

You may find it helpful to use letter case to indicate the scope or nature of a variable. For example:

 $ALL_CAPS_HERE   constants only (beware clashes with Perl vars)
 $Some_Caps_Here  package-wide global/static
 $no_caps_here    function scope my() or local() variables

Function and method names seem to work best as all lowercase. e.g., "$obj->as_string()".

You can use a leading underscore to indicate that a variable or function should not be used outside the package that defined it.

*

Select what to export.

Do NOT export method names!

Do NOT export anything else by default without a good reason!

Exports pollute the namespace of the module user. If you must export try to use @EXPORT_OK in preference to @EXPORT and avoid short or common names to reduce the risk of name clashes.

Generally anything not exported is still accessible from outside the module using the ModuleName::item_name (or "$blessed_ref->method") syntax. By convention you can use a leading underscore on names to indicate informally that they are 'internal' and not for public use.

(It is actually possible to get private functions by saying: "my $subref = sub { ... }; &$subref;". But there's no way to call that directly as a method, because a method must have a name in the symbol table.)

As a general rule, if the module is trying to be object oriented then export nothing. If it's just a collection of functions then @EXPORT_OK anything but use @EXPORT with caution.

*

Select a name for the module.

This name should be as descriptive, accurate, and complete as possible. Avoid any risk of ambiguity. Always try to use two or more whole words. Generally the name should reflect what is special about what the module does rather than how it does it. Please use nested module names to group informally or categorize a module. There should be a very good reason for a module not to have a nested name. Module names should begin with a capital letter.

Having 57 modules all called Sort will not make life easy for anyone (though having 23 called Sort::Quick is only marginally better :-). Imagine someone trying to install your module alongside many others.

If you are developing a suite of related modules/classes it's good practice to use nested classes with a common prefix as this will avoid namespace clashes. For example: Xyz::Control, Xyz::View, Xyz::Model etc. Use the modules in this list as a naming guide.

If adding a new module to a set, follow the original author's standards for naming modules and the interface to methods in those modules.

If developing modules for private internal or project specific use, that will never be released to the public, then you should ensure that their names will not clash with any future public module. You can do this either by using the reserved Local::* category or by using a category name that includes an underscore like Foo_Corp::*.

To be portable each component of a module name should be limited to 11 characters. If it might be used on MS-DOS then try to ensure each is unique in the first 8 characters. Nested modules make this easier.

For additional guidance on the naming of modules, please consult:

    http://pause.perl.org/pause/query?ACTION=pause_namingmodules

or send mail to the <module-authors@perl.org> mailing list.

*

Have you got it right?

How do you know that you've made the right decisions? Have you picked an interface design that will cause problems later? Have you picked the most appropriate name? Do you have any questions?

The best way to know for sure, and pick up many helpful suggestions, is to ask someone who knows. The <module-authors@perl.org> mailing list is useful for this purpose; it's also accessible via news interface as perl.module-authors at nntp.perl.org.

All you need to do is post a short summary of the module, its purpose and interfaces. A few lines on each of the main methods is probably enough. (If you post the whole module it might be ignored by busy people - generally the very people you want to read it!)

Don't worry about posting if you can't say when the module will be ready - just say so in the message. It might be worth inviting others to help you, they may be able to complete it for you!

*

README and other Additional Files.

It's well known that software developers usually fully document the software they write. If, however, the world is in urgent need of your software and there is not enough time to write the full documentation please at least provide a README file containing:

*: A description of the module/package/extension etc.
*: A copyright notice - see below.
*: Prerequisites - what else you may need to have.
*: How to build it - possible changes to Makefile.PL etc.
*: How to install it.
*: Recent changes in this release, especially incompatibilities
*: Changes / enhancements you plan to make in the future.

If the README file seems to be getting too large you may wish to split out some of the sections into separate files: INSTALL, Copying, ToDo etc.

*

Adding a Copyright Notice.

How you choose to license your work is a personal decision. The general mechanism is to assert your Copyright and then make a declaration of how others may copy/use/modify your work.

Perl, for example, is supplied with two types of licence: The GNU GPL and The Artistic Licence (see the files README, Copying, and Artistic, or perlgpl and perlartistic). Larry has good reasons for NOT just using the GNU GPL.

My personal recommendation, out of respect for Larry, Perl, and the Perl community at large is to state something simply like:

 Copyright (c) 1995 Your Name. All rights reserved.
 This program is free software; you can redistribute it and/or
 modify it under the same terms as Perl itself.

This statement should at least appear in the README file. You may also wish to include it in a Copying file and your source files. Remember to include the other words in addition to the Copyright.

*

Give the module a version/issue/release number.

To be fully compatible with the Exporter and MakeMaker modules you should store your module's version number in a non-my package variable called $VERSION. This should be a positive floating point number with at least two digits after the decimal (i.e., hundredths, e.g, "$VERSION = "0.01""). Don't use a ``1.3.2'' style version. See Exporter for details.

It may be handy to add a function or method to retrieve the number. Use the number in announcements and archive file names when releasing the module (ModuleName-1.02.tar.Z). See perldoc ExtUtils::MakeMaker.pm for details.

*

How to release and distribute a module.

It's good idea to post an announcement of the availability of your module (or the module itself if small) to the comp.lang.perl.announce Usenet newsgroup. This will at least ensure very wide once-off distribution.

If possible, register the module with CPAN. You should include details of its location in your announcement.

Some notes about ftp archives: Please use a long descriptive file name that includes the version number. Most incoming directories will not be readable/listable, i.e., you won't be able to see your file after uploading it. Remember to send your email notification message as soon as possible after uploading else your file may get deleted automatically. Allow time for the file to be processed and/or check the file has been processed before announcing its location.

FTP Archives for Perl Modules:

Follow the instructions and links on:

   http://www.cpan.org/modules/00modlist.long.html
   http://www.cpan.org/modules/04pause.html

or upload to one of these sites:

   https://pause.kbx.de/pause/
   http://pause.perl.org/

and notify <modules@perl.org>.

By using the WWW interface you can ask the Upload Server to mirror your modules from your ftp or WWW site into your own directory on CPAN!

Please remember to send me an updated entry for the Module list!

*

Take care when changing a released module.

Always strive to remain compatible with previous released versions. Otherwise try to add a mechanism to revert to the old behavior if people rely on it. Document incompatible changes.

Guidelines for Converting Perl 4 Library Scripts into Modules

*

There is no requirement to convert anything.

If it ain't broke, don't fix it! Perl 4 library scripts should continue to work with no problems. You may need to make some minor changes (like escaping non-array @'s in double quoted strings) but there is no need to convert a .pl file into a Module for just that.

*

Consider the implications.

All Perl applications that make use of the script will need to be changed (slightly) if the script is converted into a module. Is it worth it unless you plan to make other changes at the same time?

*

Make the most of the opportunity.

If you are going to convert the script to a module you can use the opportunity to redesign the interface. The guidelines for module creation above include many of the issues you should consider.

*

The pl2pm utility will get you started.

This utility will read *.pl files (given as parameters) and write corresponding *.pm files. The pl2pm utilities does the following:

*: Adds the standard Module prologue lines
*: Converts package specifiers from ' to ::
*: Converts die(...) to croak(...)
*: Several other minor changes

: Being a mechanical process pl2pm is not bullet proof. The converted code will need careful checking, especially any package statements. Don't delete the original .pl file till the new .pm one works!

Guidelines for Reusing Application Code

*

Complete applications rarely belong in the Perl Module Library.

*

Many applications contain some Perl code that could be reused.

Help save the world! Share your code in a form that makes it easy to reuse.

*

Break-out the reusable code into one or more separate module files.

*

Take the opportunity to reconsider and redesign the interfaces.

*

In some cases the 'application' can then be reduced to a small

fragment of code built on top of the reusable modules. In these cases the application could invoked as:

     % perl -e 'use Module::Name; method(@ARGV)' ...
or
     % perl -mModule::Name ...    (in perl5.002 or higher)

NOTE

Perl does not enforce private and public parts of its modules as you may have been used to in other languages like C++, Ada, or Modula-17. Perl doesn't have an infatuation with enforced privacy. It would prefer that you stayed out of its living room because you weren't invited, not because it has a shotgun.

The module and its user have a contract, part of which is common law, and part of which is ``written''. Part of the common law contract is that a module doesn't pollute any namespace it wasn't asked to. The written contract for the module (A.K.A. documentation) may make other provisions. But then you know when you "use RedefineTheWorld" that you're redefining the world and willing to take the consequences.

Index

NAME

THE PERL MODULE LIBRARY

Pragmatic Modules
Standard Modules
Extension Modules

CPAN

Africa
Asia
Central America
Europe
North America
Oceania
South America
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

www.LinuxHowtos.org howtos, tips&tricks and tutorials for linux