Perl Modules

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# Perl Modules

## Introduction to Perl Modules

The Perl module packages (also referred to as Distributions, because each can contain multiple modules) add useful objects to the Perl language. The packages listed on this page are required or recommended for other packages in the book. If they have dependent modules, those are either on this page or else on the next page (Perl Module Dependencies).

In many cases, only the required or recommended dependencies are listed - there might be other modules which allow more tests to be run, but omitting them will still allow the tests to `PASS`.

For a few modules, the BLFS editors have determined that other modules still listed as prerequisites are not required, and omitted them.

Where an alphabetically-earlier dependency of the same module pulls in a dependency, it is not mentioned for the later dependencies of the same module. You should build the listed dependencies in order.

It is generally worth running the tests for perl modules, they often can show problems such as missing dependencies which are required to use the module. Here, the editors have attempted to separate those dependencies which are only required for running test suites, but they will not be mentioned for a module where one of its dependencies uses that module for its own test suite. That is to say, if you intend to run the test suites, please run them for each dependency of the module.

It is possible to automatically install the current versions of a module and all missing or too-old dependencies recommended by upstream using CPAN. See CPAN automated install of perl modules at the end of this page.

Most of these modules only install files below `/usr/lib/perl5/site_perl/5.xx.y` and those will not be documented. One or two install programs (mostly, perl scripts), or a library, into `/usr/bin/` or `/usr/lib/` and these are documented.

Editor Notes: https://wiki.linuxfromscratch.org/blfs/wiki/perl-modules

- Archive-Zip-1.68

- autovivification-0.18

- Business-ISBN-3.013

- Business-ISMN-1.205

- Business-ISSN-1.008

- Class-Accessor-0.51

- Data-Compare-1.29

- Data-Dump-1.25

- Data-Uniqid-0.12

- DateTime-Calendar-Julian-0.107

- DateTime-Format-Builder-0.83

- Encode-EUCJPASCII-0.03

- Encode-HanExtra-0.23

- Encode-JIS2K-0.05

- File-FcntlLock-0.22

- File-Slurper-0.014

- File-Which-1.27

- HTML-Parser-3.83

- HTTP-Daemon-6.16

- IO-Socket-SSL-2.098

- IO-String-1.08

- IPC-Run3-0.049

- libwww-perl-6.82

- Lingua-Translit-0.29

- List-AllUtils-0.19

- List-MoreUtils-0.430

- Log-Log4perl-1.57

- LWP-Protocol-https-6.15

- Module-Build-0.4234

- Net-DNS-1.54

- Parse-RecDescent-1.967015

- Parse-Yapp-1.21

- PerlIO-utf8_strict-0.010

- Regexp-Common-2024080801

- SGMLSpm-1.1

- Sort-Key-1.33

- Test-Command-0.11

- Test-Differences-0.72

- Text-BibTeX-0.91

- Text-CSV-2.06

- Text-Roman-3.5

- Unicode-Collate-1.31

- Unicode-LineBreak-2019.001

- URI-5.34

- XML-LibXML-Simple-1.01

- XML-LibXSLT-2.003000

- XML-Parser-2.58

- XML-Simple-2.25

- XML-Writer-0.900

- CPAN automated install of perl modules

## Archive::Zip-1.68

### Introduction to Archive::Zip

The Archive::Zip module allows a Perl program to create, manipulate, read, and write Zip archive files.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/P/PH/PHRED/Archive-Zip-1.68.tar.gz

- Download MD5 sum: a33993309322164867c99e04a4000ee3

#### Archive::Zip Dependencies

##### Recommended (for the test suite)

libarchive-3.8.7

### Installation of Archive::Zip

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

### Contents

Installed Programs: crc32

### Short Descriptions

crc32 | computes and prints to stdout the CRC-32 values of the given files

## autovivification-0.18

### Introduction to the autovivification module

This module allows you disable autovivification (the automatic creation and population of new arrays and hashes whenever undefined variables are dereferenced), and optionally throw a warning or an error when it would have occurred.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/V/VP/VPIT/autovivification-0.18.tar.gz

- Download MD5 sum: 8dec994e1e7d368e055f21a5777385a0

### Installation of autovivification

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Business::ISBN-3.013

### Introduction to Business::ISBN

The Business::ISBN module provides functions for working with International Standard Book Numbers.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/B/BR/BRIANDFOY/Business-ISBN-3.013.tar.gz

- Download MD5 sum: db496e6253e7e74d26e498db09f5f18b

#### Business::ISBN Dependencies

##### Required

Business-ISBN-Data-20260311.001

### Installation of Business::ISBN

### Note

A harmless warning may be output during the creation of the Makefile regarding the ExtUtils::MakeMaker module. This can be safely ignored.

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Business::ISMN-1.205

### Introduction to Business::ISMN

The Business::ISMN module provides functions for working with International Standard Music Numbers.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/B/BR/BRIANDFOY/Business-ISMN-1.205.tar.gz

- Download MD5 sum: b35f42bdaeb2fd797c51bb0821ffc906

#### Business::ISMN Dependencies

##### Required

Tie-Cycle-1.233

### Installation of Business::ISMN

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Business::ISSN-1.008

### Introduction to Business::ISSN

The Business::ISSN module provides functions for working with International Standard Serial Numbers.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/B/BR/BRIANDFOY/Business-ISSN-1.008.tar.gz

- Download MD5 sum: 967e79eff741c8710d70c64fb593eda1

### Installation of Business::ISSN

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Class::Accessor-0.51

### Introduction to Class::Accessor

Class::Accessor generates accessors/mutators for your class.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/K/KA/KASEI/Class-Accessor-0.51.tar.gz

- Download MD5 sum: 1f1e5990f87cad7659b292fed7dc0407

### Installation of Class::Accessor

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Data::Compare-1.29

### Introduction to Data::Compare

The Data::Compare module compares two perl data structures.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/D/DC/DCANTRELL/Data-Compare-1.29.tar.gz

- Download MD5 sum: ce9cb42ba6af634f5ab51f13f37e2ddb

#### Data::Compare Dependencies

##### Required

Clone-0.47 and File-Find-Rule-0.35

### Installation of Data::Compare

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Data::Dump-1.25

### Introduction to Data::Dump

Data::Dump provides pretty printing of data structures.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/G/GA/GARU/Data-Dump-1.25.tar.gz

- Download MD5 sum: 9bd7131ef0441e1e0e001bf85e9fae31

### Installation of Data::Dump

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Data::Uniqid-0.12

### Introduction to Data::Uniqid

Data::Uniqid provides three simple routines for generating unique IDs.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/M/MW/MWX/Data-Uniqid-0.12.tar.gz

- Download MD5 sum: 6bab3b5da09fedfdf60ce2629a7367db

### Installation of Data::Uniqid

Although the final test fails and reports an Error, the test suite returns a status of 0. The error can safely be ignored.

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## DateTime::Calendar::Julian-0.107

### Introduction to DateTime::Calendar::Julian

DateTime::Calendar::Julian implements the Julian Calendar.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/W/WY/WYANT/DateTime-Calendar-Julian-0.107.tar.gz

- Download MD5 sum: abd775d1d82f0f45d4fd6214cf7bbed8

#### DateTime::Calendar::Julian Dependencies

##### Required

DateTime-1.66

### Installation of DateTime::Calendar::Julian

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## DateTime::Format::Builder-0.83

### Introduction to DateTime::Format::Builder

DateTime::Format::Builder creates DateTime parser classes and objects.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/D/DR/DROLSKY/DateTime-Format-Builder-0.83.tar.gz

- Download MD5 sum: aa41917ca9ad69b3898728ce9c2fb477

#### DateTime::Format::Builder Dependencies

##### Required

DateTime-Format-Strptime-1.80 and Params-Validate-1.31

### Installation of DateTime::Format::Builder

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Encode::EUCJPASCII-0.03

### Introduction to Encode::EUCJPASCII

Encode::EUCJPASCII provides an eucJP-open (Extended Unix Code, Japanese) mapping.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/N/NE/NEZUMI/Encode-EUCJPASCII-0.03.tar.gz

- Download MD5 sum: 5daa65f55b7c2050bb0713d9e95f239d

### Installation of Encode::EUCJPASCII

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Encode::HanExtra-0.23

### Introduction to Encode::HanExtra

The Encode::HanExtra module provides extra sets of Chinese Encodings which are not included in the core Encode module because of size issues.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/A/AU/AUDREYT/Encode-HanExtra-0.23.tar.gz

- Download MD5 sum: e1d3bc32c1c8ee304235a06fbcd5d5a4

### Installation of Encode::HanExtra

This module uses the 'unsafe' build and installation instructions (In perl-5.26.0 the use of the current directory in `@INC` was removed for security reasons and this module has not been updated) :

    PERL_USE_UNSAFE_INC=1 perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Encode::JIS2K-0.05

### Introduction to Encode::JIS2K

The Encode::JIS2K module provides JIS X 0212 (aka JIS 2000) Encodings.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/D/DA/DANKOGAI/Encode-JIS2K-0.05.tar.gz

- Download MD5 sum: 06acd9e878d41ffc354258e265db2875

### Installation of Encode::JIS2K

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## File::FcntlLock-0.22

### Introduction to File::FcntlLock

File::FcntlLock is a module to do file locking in an object oriented fashion using the fcntl(2) system call. This allows locks on parts of a file as well as on the whole file and overcomes some known problems with flock(2), on which which Perl's `flock()` function is based per default.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/J/JT/JTT/File-FcntlLock-0.22.tar.gz

- Download MD5 sum: 579698d735d864ee403674f1175f789d

### Installation of File::FcntlLock

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## File::Slurper-0.014

### Introduction to File::Slurper

File::Slurper is a simple, sane and efficient module to slurp a file.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/L/LE/LEONT/File-Slurper-0.014.tar.gz

- Download MD5 sum: d43bc5f069035eff3b6b7c418b4cedc4

#### File::Slurper Dependencies

##### Recommended (required for the test suite)

Test-Warnings-0.038

### Installation of File::Slurper

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## File::Which-1.27

### Introduction to File::Which

File::Which provides a portable implementation of the 'which' utility.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/P/PL/PLICEASE/File-Which-1.27.tar.gz

- Download MD5 sum: d5c9154262b93398f0750ec364207639

### Installation of File::Which

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## HTML::Parser-3.83

### Introduction to HTML::Parser

The HTML::Parser distribution is a collection of modules that parse and extract information from HTML documents.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/O/OA/OALDERS/HTML-Parser-3.83.tar.gz

- Download MD5 sum: 17a4c886024bfad1cffcbe6b46cda128

#### HTML::Parser Dependencies

##### Required

HTML-Tagset-3.24 and HTTP-Message-7.01 (strictly speaking, not required for building, but its module HTTP::Headers is required for tests and a run-time requirement for HTML::HeadParser from this distribution).

### Installation of HTML::Parser

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## HTTP::Daemon-6.16

### Introduction to HTTP::Daemon

Instances of the HTTP::Daemon class are HTTP/1.1 servers that listen on a socket for incoming requests. The HTTP::Daemon is a subclass of IO::Socket::INET, so you can perform socket operations directly on it too.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/O/OA/OALDERS/HTTP-Daemon-6.16.tar.gz

- Download MD5 sum: 51425462790165aeafc2819a7359706f

#### HTTP::Daemon Dependencies

##### Required

HTTP-Message-7.01

### Note

Makefile.PL and running the tests will complain that Module::Build::Tiny is missing, but that is only needed for `Build.PL` which is used if the system lacks a C compiler.

### Installation of HTTP::Daemon

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## IO::Socket::SSL-2.098

### Introduction to IO::Socket::SSL

IO::Socket::SSL makes using SSL/TLS much easier by wrapping the necessary functionality into the familiar IO::Socket interface and providing secure defaults whenever possible.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/S/SU/SULLR/IO-Socket-SSL-2.098.tar.gz

- Download MD5 sum: d52c3d2dd85bfa22b722f7ae7ba90dc3

#### IO::Socket::SSL Dependencies

##### Required

make-ca-1.16.1 and Net-SSLeay-1.94

##### Recommended

URI-5.34 (to access international domain names)

### Note

An Internet connection is needed for some tests of this package. The system certificate store may need to be set up with make-ca-1.16.1 before testing this package.

### Installation of IO::Socket::SSL

This module uses a variant of the standard build and installation instructions:

    yes | perl Makefile.PL &&
    make                   &&
    make test

Now, as the `root` user:

    make install

### Command Explanations

yes: Perl will ask if you wish to run external tests, which will 'fail soft' if there are network problems. The default is 'y', which will allow you to script the build.

## IO::String-1.08

### Introduction to IO::String

IO::String - Emulate file interface for in-core strings.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/G/GA/GAAS/IO-String-1.08.tar.gz

- Download MD5 sum: 250e5424f290299fc3d6b5d1e9da3835

### Installation of IO::String

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## IPC::Run3-0.049

### Introduction to IPC::Run3

IPC::Run3 is used to run a subprocess with input/output redirection.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/R/RJ/RJBS/IPC-Run3-0.049.tar.gz

- Download MD5 sum: 569393ca56dfb78dedd79e93c0439159

### Installation of IPC::Run3

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Lingua::Translit-0.29

### Introduction to Lingua::Translit

Lingua::Translit and its translit program transliterate text between writing systems.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/A/AL/ALINKE/Lingua-Translit-0.29.tar.gz

- Download MD5 sum: 605a82f06b05fef4fc18bf069b1be511

### Installation of Lingua::Translit

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

### Contents

Installed Programs: translit

### Short Descriptions

translit | transliterates text between writing systems using various standards

## LWP (libwww-perl-6.82)

### Introduction to LWP - The World-wide Web library for Perl

The libwww-perl collection is a set of Perl modules which provides a simple and consistent application programming interface (API) to the World-Wide Web. The main focus of the library is to provide classes and functions that allow you to write WWW clients. The library also contains modules that are of more general use and even classes that help you implement simple HTTP servers.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/O/OA/OALDERS/libwww-perl-6.82.tar.gz

- Download MD5 sum: 50ff700dbb03d3ba06e950cd896e1e91

#### libwww-perl Dependencies

##### Required

File-Listing-6.16, HTTP-CookieJar-0.014, HTTP-Cookies-6.11, HTTP-Daemon-6.16, HTTP-Negotiate-6.01, HTML-Parser-3.83, Net-HTTP-6.24, Try-Tiny-0.32 and WWW-RobotRules-6.02

##### Recommended (required for the test suite)

Test-Fatal-0.018, Test-Needs-0.002010 and Test-RequiresInternet-0.05

### Installation of libwww-perl

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

After installing this package, if you want HTTPS protocol support install LWP-Protocol-https-6.15.

### Contents

Installed Programs: lwp-download, lwp-dump, lwp-mirror, lwp-request

### Short Descriptions

lwp-download | is a script to fetch a large file from the web
lwp-dump | is used to see what headers and content is returned for a URL
lwp-mirror | is a simple mirror utility
lwp-request | is a simple command line user agent

## List::AllUtils-0.19

### Introduction to List::AllUtils

The List::Allutils module combines List::Util and List::MoreUtils in one bite-sized package.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/D/DR/DROLSKY/List-AllUtils-0.19.tar.gz

- Download MD5 sum: 86469b1f6819ba181a8471eb932965f2

#### List::AllUtils Dependencies

##### Required

List-SomeUtils-0.59 and List-UtilsBy-0.12

### Installation of List::AllUtils

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## List::MoreUtils-0.430

### Introduction to List::MoreUtils

List::MoreUtils provides the stuff missing in List::Util.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/R/RE/REHSACK/List-MoreUtils-0.430.tar.gz

- Download MD5 sum: daccd6310021231b827dcc943ff1c6b7

#### List::MoreUtils Dependencies

##### Required

Exporter-Tiny-1.006003 and List-MoreUtils-XS-0.430

### Installation of List::MoreUtils

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Log::Log4perl-1.57

### Introduction to Log::Log4perl

Log::Log4perl provides a Log4j implementation for perl.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/E/ET/ETJ/Log-Log4perl-1.57.tar.gz

- Download MD5 sum: acbe29cbaf03f4478a13579a275b0011

### Installation of Log::Log4perl

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

### Contents

Installed Programs: l4p-templ

### Short Descriptions

l4p-templ | prints out the text of a template Log4perl configuration for starting a new Log4perl configuration file

## LWP::Protocol::https-6.15

### Introduction to LWP::Protocol::https

LWP::Protocol::https provides https support for LWP::UserAgent (i.e. libwww-perl-6.82). Once the module is installed LWP is able to access sites using HTTP over SSL/TLS.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/O/OA/OALDERS/LWP-Protocol-https-6.15.tar.gz

- Download MD5 sum: c92eb7bffeb73cf3726193ea69f6792e

#### LWP::Protocol::https Dependencies

##### Required

IO-Socket-SSL-2.098, libwww-perl-6.82, and make-ca-1.16.1 with `/etc/pki/tls/certs/ca-bundle.crt`.

### Installation of LWP::Protocol::https

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Module::Build-0.4234

### Introduction to Module::Build

Module::Build allows perl modules to be built without a make command being present.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://cpan.metacpan.org/authors/id/L/LE/LEONT/Module-Build-0.4234.tar.gz

- Download MD5 sum: 0032d0c0bc36a3b68ef41c947829d5e3

### Installation of Module::Build

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

Note that this module can also be built using `Build.PL`

### Contents

Installed Programs: config_data

### Short Descriptions

config_data | is used to query or change the configuration of perl modules

## Net::DNS-1.54

### Introduction to Net::DNS

Net::DNS is a DNS resolver implemented in Perl. It can be used to perform nearly any type of DNS query from a Perl script.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/N/NL/NLNETLABS/Net-DNS-1.54.tar.gz

- Download MD5 sum: 717ef24e9b284359d65a6af8e077362e

### Installation of Net::DNS

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Parse::RecDescent-1.967015

### Introduction to Parse::RecDescent

Parse::RecDescent incrementally generates top-down recursive-descent text parsers from simple yacc-like grammar specifications.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/J/JT/JTBRAUN/Parse-RecDescent-1.967015.tar.gz

- Download MD5 sum: 7a36d45d62a9b68603edcdbd276006cc

### Installation of Parse::RecDescent

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Parse::Yapp-1.21

### Introduction to Parse::Yapp

Parse::Yapp is a Perl extension for generating and using LALR parsers.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/W/WB/WBRASWELL/Parse-Yapp-1.21.tar.gz

- Download MD5 sum: 69584d5b0f0304bb2a23cffcd982c5de

### Installation of Parse::Yapp

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

### Contents

Installed Programs: yapp

### Short Descriptions

yapp | is a frontend to the Parse::Yapp module, which lets you create a Perl OO parser from an input grammar file

## PerlIO::utf8_strict-0.010

### Introduction to PerlIO::utf8_strict

PerlIO::utf8_strict provides a fast and correct UTF-8 PerlIO layer. Unlike Perl's default :utf8 layer it checks the input for correctness.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/L/LE/LEONT/PerlIO-utf8_strict-0.010.tar.gz

- Download MD5 sum: d90ca967f66e05ad9221c79060868346

#### PerlIO::utf8_strict Dependencies

##### Recommended (required for the test suite)

Test-Exception-0.43

### Installation of PerlIO::utf8_strict

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Regexp::Common-2024080801

### Introduction to Regexp::Common

Regexp::Common provides commonly requested regular expressions.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/A/AB/ABIGAIL/Regexp-Common-2024080801.tar.gz

- Download MD5 sum: 73d4b4b2a0690f9ab573d54a69c22aee

### Installation of Regexp::Common

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## SGMLSpm-1.1

### Introduction to SGMLSpm

The SGMLSpm module is a Perl library used for parsing the output from James Clark's SGMLS and NSGMLS parsers.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/R/RA/RAAB/SGMLSpm-1.1.tar.gz

- Download MD5 sum: 746c74ae969992cedb1a2879b4168090

### Installation of SGMLSpm

Before beginning the build, issue the following command to prevent an error:

    chmod -v 644 MYMETA.yml

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

After the package has been installed, run the following command as the `root` user:

    ln -sv sgmlspl.pl /usr/bin/sgmlspl

### Contents

Installed Programs: sgmlspl.pl, sgmlspl

### Short Descriptions

sgmlspl.pl | is an SGML processor
sgmlspl | is a symbolic link used during the install of DocBook-utils-0.6.14

## Sort::Key-1.33

### Introduction to Sort::Key

Sort::Key provides a set of functions to sort lists of values by some calculated key value.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/S/SA/SALVA/Sort-Key-1.33.tar.gz

- Download MD5 sum: a37ab0da0cfdc26e57b4c79e39f6d98f

### Installation of Sort::Key

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Test::Command-0.11

### Introduction to Test::Command

Test::Command tests the exit status, STDOUT, or STDERR, of an external command.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/D/DA/DANBOO/Test-Command-0.11.tar.gz

- Download MD5 sum: 9ab83c4695961dbe92cd86efe08f0634

### Installation of Test::Command

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Test::Differences-0.72

### Introduction to Test::Differences

Test::Differences tests strings and data structures and shows the differences if they do not match.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/D/DC/DCANTRELL/Test-Differences-0.72.tar.gz

- Download MD5 sum: 348ac35809a53290ac05cf0f18f673fa

#### Test::Differences Dependencies

##### Required

Text-Diff-1.45

##### Recommended (required for the test suite)

Capture-Tiny-0.50

### Installation of Test::Differences

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Text::BibTeX-0.91

### Introduction to Text::BibTeX

Text::BibTeX provides an interface to read and parse BibTeX files.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/A/AM/AMBS/Text-BibTeX-0.91.tar.gz

- Download MD5 sum: 437862f801cfb7598dff52aa4ff7d888

#### Text::BibTeX Dependencies

##### Required

Config-AutoConf-0.320 and ExtUtils-LibBuilder-0.09

### Installation of Text::BibTeX

This module is built using `Build.PL`:

    perl Build.PL &&
    ./Build       &&
    ./Build test

Now, as the `root` user:

    ./Build install

### Contents

Installed Programs: biblex, bibparse, dumpnames
Installed Libraries: libbtparse.so

### Short Descriptions

biblex | performs lexical analysis on a BibTeX file
bibparse | parses a series of BibTeX files with command line options to control the string post-processing behavior
dumpnames | parses a BibTeX file, splitting 'author' and 'editor' fields into lists of names, and then dumps everything to stdout
`libbtparse.so` | is a library for parsing and processing BibTeX data files

## Text::CSV-2.06

### Introduction to Text::CSV

Text::CSV is a comma-separated values manipulator, using XS (eXternal Subroutine - for subroutines written in C or C++) or pure perl.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/I/IS/ISHIGAKI/Text-CSV-2.06.tar.gz

- Download MD5 sum: 620284340dfd1787c89666d22adfd463

#### Text::CSV Dependencies

##### Recommended

Text-CSV_XS-1.62 (required by biber-2.21)

### Installation of Text::CSV

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Text::Roman-3.5

### Introduction to Text::Roman

Text::Roman allows conversion between Roman and Arabic algorisms (number systems, e.g. MCMXLV and 1945).

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/S/SY/SYP/Text-Roman-3.5.tar.gz

- Download MD5 sum: 1f6b09c0cc1f4425b565ff787a39fd83

### Installation of Text::Roman

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Unicode::Collate-1.31

### Introduction to Unicode::Collate

Unicode::Collate provides a Unicode collation algorithm.

### Note

This is a core module. If you are using perl-5.28.0 or later, its version is good enough for biber-2.21 and you do not need to reinstall this module.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/S/SA/SADAHIRO/Unicode-Collate-1.31.tar.gz

- Download MD5 sum: ee4d960d057c5e5b02ebb49d0286db8f

### Installation of Unicode::Collate

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## Unicode::LineBreak-2019.001

### Introduction to Unicode::LineBreak

Unicode::LineBreak provides a UAX #14 Unicode Line Breaking Algorithm.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/N/NE/NEZUMI/Unicode-LineBreak-2019.001.tar.gz

- Download MD5 sum: 003d6da7a13700e069afed9238c864b9

#### Unicode::LineBreak Dependencies

##### Required

MIME-Charset-1.013.1 and Wget-1.25.0 (to download two files from unicode.org in the test suite)

##### Optional

libthai (to break Thai words into segments)

### Installation of Unicode::LineBreak

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## URI-5.34

### Introduction to URI

This module implements the URI class. Objects of this class represent "Uniform Resource Identifier references" as specified in RFC 2396 (and updated by RFC 2732). A Uniform Resource Identifier is a compact string of characters that identifies an abstract or physical resource. A Uniform Resource Identifier can be further classified as either a Uniform Resource Locator (URL) or a Uniform Resource Name (URN). The distinction between URL and URN does not matter to the URI class interface. A "URI-reference" is a URI that may have additional information attached in the form of a fragment identifier.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/O/OA/OALDERS/URI-5.34.tar.gz

- Download MD5 sum: 3736f3d6efe1710176a753a7029b7606

#### URI Dependencies

##### Required

MIME-Base32-1.303

##### Recommended (required for the test suite)

Test-Fatal-0.018, Test-Needs-0.002010, and Test-Warnings-0.038

##### Optional

Business-ISBN-3.013

### Installation of URI

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## XML::LibXML::Simple-1.01

### Introduction to XML::LibXML::Simple

The XML::LibXML::Simple module is a rewrite of XML::Simple to use the XML::LibXML parser for XML structures, instead of the plain Perl or SAX parsers.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/M/MA/MARKOV/XML-LibXML-Simple-1.01.tar.gz

- Download MD5 sum: faad5ed26cd83998f6514be199c56c38

#### XML::LibXML::Simple Dependencies

##### Required

XML-LibXML-2.0210

### Installation of XML::LibXML::Simple

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## XML::LibXSLT-2.003000

### Introduction to XML::LibXSLT

XML-LibXSLT provides an interface to libxslt-1.1.45

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/S/SH/SHLOMIF/XML-LibXSLT-2.003000.tar.gz

- Download MD5 sum: 632dce587b3c405edd4e622364750191

#### XML::LibXSLT Dependencies

##### Required

libxslt-1.1.45 and XML-LibXML-2.0210

### Installation of XML::LibXSLT

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## XML::Parser-2.58

### Introduction to XML::Parser

The XML::Parser module is a Perl interface to James Clark's XML parser. It is built on top of XML::Parser::Expat, which is a lower level interface to the expat library. Each call to one of the parsing methods creates a new instance of XML::Parser::Expat which is then used to parse the document.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/T/TO/TODDR/XML-Parser-2.58.tar.gz

- Download MD5 sum: 953d806df1393c81d10597822c5764df

#### XML::Parser Dependencies

##### Required

File-ShareDir-1.118

### Installation of XML::Parser

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## XML::Simple-2.25

### Introduction to XML::Simple

XML::Simple provides an easy API to read and write XML (especially config files). It is deprecated and its use is discouraged.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/G/GR/GRANTM/XML-Simple-2.25.tar.gz

- Download MD5 sum: bb841dce889a26c89a1c2739970e9fbc

#### XML::Simple Dependencies

##### Optional

XML-SAX-1.02 (for an alternative parser which will be used if available, otherwise XML::Parser (which was installed in LFS) will be used)

### Installation of XML::Simple

### Note

During the configuration process, the build system will complain about missing the XML::SAX::Expat module. If XML::SAX is installed, this module is not necessary as XML::SAX will use the libxml2 package instead. However, if it is not installed, the XML::Parser module which was installed in LFS will get used instead.

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## XML::Writer-0.900

### Introduction to XML::Writer

XML::Writer provides a Perl extension for writing XML documents.

### Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

#### Package Information

- Download (HTTP): https://www.cpan.org/authors/id/J/JO/JOSEPHW/XML-Writer-0.900.tar.gz

- Download MD5 sum: 2457214360cefda445742a608dd6195e

### Installation of XML::Writer

This module uses the standard build and installation instructions:

    perl Makefile.PL &&
    make             &&
    make test

Now, as the `root` user:

    make install

## CPAN automated install of perl modules

### Automatic Installation of Perl Modules.

There is an alternate way of installing the modules using the cpan shell install command. The command automatically downloads the latest source from the CPAN archive for the module and any missing prerequisite modules listed by upstream. Then for each module it extracts it, runs the compilation, the tests and installs it.

You still need to install any non-perl dependencies before running the automated installation method. You may wish to clean out the `build/` directory after installing, to free up the space. If any post-install actions such as creating a symlink are mentioned, you should also do those.

The first time you run cpan, you'll be prompted to enter some information regarding download locations and methods. This information is retained in files located in `~/.cpan`.

In particular, you may wish to configure it so that Sudo-1.9.17p2 is used for the installs, allowing you to build and test as a regular user. The following examples have not used that approach.

Start the cpan shell by issuing 'cpan' as the `root` user. Any module may now be installed from the `cpan>` prompt with the command:

    install <Module::Name>

For additional commands and help, issue 'help' from the `cpan>` prompt.

Alternatively, for scripted or non-interactive installations, use the following syntax as the `root` user to install one or more modules:

    cpan -i <Module1::Name> <Module2::Name>

Review the `cpan.1` man page for additional parameters you can pass to cpan on the command line.

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