Extensions to PPI

http://search.cpan.org/dist/PPIx-Utilities/

List all constants declared in a package

http://search.cpan.org/dist/Package-Constants/

Manage deprecation warnings for your distribution

http://search.cpan.org/dist/Package-DeprecationManager/

Routines for manipulating stashes

http://search.cpan.org/dist/Package-Stash/

Faster and more correct implementation of the Package::Stash API

http://metacpan.org/release/Package-Stash-XS

Parameterizable packages

http://search.cpan.org/dist/Package-Variant/

PadWalker - play with Perl lexical variables

http://search.cpan.org/dist/PadWalker/

Utility functions to aid in parameter checking

http://search.cpan.org/dist/Params-Util/

Validate method/function parameters

http://search.cpan.org/dist/Params-Validate/

Build an optimized subroutine parameter validator once, use it forever

https://metacpan.org/release/Params-ValidationCompiler

Parse META.yml and other similar CPAN metadata files

http://search.cpan.org/dist/Parse-CPAN-Meta/

IDL compiler written in Perl

http://search.cpan.org/dist/Parse-Pidl/

Recursive descent parsing framework for Perl

http://search.cpan.org/dist/Parse-RecDescent/

Perl5 routines that present a simple interface to parse syslog files

http://search.cpan.org/dist/Parse-Syslog/

Perl extension for generating and using LALR parsers

https://metacpan.org/release/Parse-Yapp

Perl module with utilities to read and manipulate patches and CVS

http://search.cpan.org/dist/PatchReader/

Cross-platform path specification manipulation

http://search.cpan.org/dist/Path-Class/

Perl module for portably manipulating file specifications

http://search.cpan.org/dist/PathTools/

Critique Perl source for style and standards

http://search.cpan.org/dist/Perl-Critic/

Interface for using perl5 to access PostgreSQL databases

http://www.postgresql.org/

Checks if the documentation of a module is comprehensive

http://search.cpan.org/dist/Pod-Coverage/

For resolving Pod E<...> sequences

http://search.cpan.org/dist/Pod-Escapes/

Module to convert POD to Markdown

http://search.cpan.org/dist/Pod-Markdown/

POD Object Model

http://search.cpan.org/dist/Pod-POM/

Modules to work with POD (Plain Old Documentation)

http://search.cpan.org/dist/Pod-Parser/

Convert POD to README file

http://search.cpan.org/dist/Pod-Readme/

Framework for parsing Pod

http://search.cpan.org/dist/Pod-Simple/

Interpret and act on wait() status values

http://search.cpan.org/dist/Proc-WaitStat/

XML-RPC client and server library for Perl

http://search.cpan.org/dist/RPC-XML/

Perl 5 module for Term::ReadLine editing without GNU readline

http://search.cpan.org/dist/Term-ReadLine-Perl/

Facility for creating read-only scalars, arrays, hashes

http://search.cpan.org/dist/Readonly/

Regexp::Common - Provide commonly requested regular expressions

http://search.cpan.org/dist/Regexp-Common/

Return::Value - Polymorphic Return Values

http://search.cpan.org/dist/Return-Value/

Roles, like a nouvelle cusine portion size slice of Moose

http://search.cpan.org/dist/Role-Tiny/

Simple HTTP Router

http://search.cpan.org/dist/Router-Simple/

Parse SGML documents using OpenSP

http://search.cpan.org/dist/SGML-Parser-OpenSP/

Perl module for postprocessing the output from sgmls and nsgmls

http://search.cpan.org/dist/SGMLSpm/

Driver-based API for sending SMS messages

http://search.cpan.org/dist/SMS-Send/

Perl5 module providing rudimentary access to SNMPv1 and v2 agents

http://www.switch.ch/misc/leinen/snmp/perl/

Client and server side SOAP implementation

http://search.cpan.org/dist/SOAP-Lite/

Perl extension to generate SQL from Perl data structures

http://search.cpan.org/dist/SQL-Abstract/

SQL Portability layer for LIMIT emulation

http://search.cpan.org/dist/SQL-Abstract-Limit/

Perl5 module for SQL parsing and processing

https://metacpan.org/release/SQL-Statement

Manipulate structured data definitions (SQL and more)

http://search.cpan.org/dist/SQL-Translator/

Perl subroutines that would be nice to have in the perl core

http://search.cpan.org/dist/Scalar-List-Utils/

Lexically scoped resource management

http://search.cpan.org/dist/Scope-Guard/

Manages sets of integers

http://search.cpan.org/dist/Set-IntSpan/

Networking constants and support functions

http://search.cpan.org/dist/Socket/

IPv6 related part of the C socket.h defines and structure manipulators

http://search.cpan.org/dist/Socket6/

Type constraints and coercions for Perl

https://metacpan.org/release/Specio