The Time::Warp module offers developers control over the measurement of time.

This module allows you to read and write an OLE-Structured file. OLE (Object Linking and Embedding) is a technology to store hierarchical information such as links to other documents within a single file.

Reply is a lightweight, extensible REPL for Perl. It is plugin-based (see Reply::Plugin), and through plugins supports many advanced features such as coloring and pretty printing, readline support, and pluggable commands.

The Eval::WithLexicals Perl library provides support for lexical scope evaluation. This package also includes the tinyrepl command, which can be used as a minimal Perl read-eval-print loop (REPL).

Data::Uniqid provides three simple routines for generating unique ids. These ids are coded with a Base62 system to make them short and handy (e.g. to use it as part of a URL).

Module::Find lets you find and use modules in categories. This can be useful for auto-detecting driver or plugin modules. You can differentiate between looking in the category itself or in all subcategories.

The intent of File::ShareDir is to provide a companion to Class::Inspector and File::HomeDir. Quite often you want or need your Perl module to have access to a large amount of read-only data that is stored on the file-system at run-time. Once the files have been installed to the correct directory, you can use File::ShareDir to find your files again after the installation.

Perl module for using special zip files (called Perl ARchives) as libraries from which Perl modules can be loaded.

This module allows one to run a subset of the subtest tests given in a test file.

The module declaration takes a whitelist of the subtests we want to run. Any subtest that doesn't match any of the whitelist items will be skipped (or potentially bypassed).

This module understands the formats used by MySQL for its DATE, DATETIME, TIME, and TIMESTAMP data types. It can be used to parse these formats in order to create DateTime objects, and it can take a DateTime object and produce a string representing it in the MySQL format.

This class provides several methods for host name resolution. It is designed to be used with event loops. Names are resolved by your system's native getaddrinfo(3) implementation, called in a separate thread to avoid blocking the entire application. Threading overhead is limited by using system threads instead of Perl threads.

This module disables bareword filehandles.

This module implements Spreadsheet::XLSX parsing Microsoft Excel 2007 xlsx files.

PPIX::QuoteLike parses Perl string literals and things that are reasonably like string literals. Its real reason for being is to find interpolated variables for Perl::Critic policies and similar code.

This module provides configure time utilities for using C headers, libraries, or OS features.

The purpose of the PPIx-Regexp package is to parse regular expressions in a manner similar to the way the PPI package parses Perl. This class forms the root of the parse tree, playing a role similar to PPI::Document.

This module allows errors from a clan (or family) of modules to appear to originate from the caller of the clan. This is necessary in cases where the clan modules are not classes derived from each other, and thus the Carp.pm module doesn't help.

This module handles parsing, modifying and creating configuration files of the style used by the Git version control system.

Path::Iterator::Rule iterates over files and directories to identify ones matching a user-defined set of rules. The API is based heavily on File::Find::Rule, but with more explicit distinction between matching rules and options that influence how directories are searched. A Path::Iterator::Rule object is a collection of rules (match criteria) with methods to add additional criteria. Options that control directory traversal are given as arguments to the method that generates an iterator.

A summary of features for comparison to other file finding modules:

• provides many helper methods for specifying rules

• offers (lazy) iterator and flattened list interfaces

• custom rules implemented with callbacks

• breadth-first (default) or pre- or post-order depth-first searching

• follows symlinks (by default, but can be disabled)

• directories visited only once (no infinite loop; can be disabled)

• doesn't chdir during operation

• provides an API for extensions

As a convenience, the PIR module is an empty subclass of this one that is less arduous to type for one-liners.

This module provides various portable helper functions for module building modules.

List::SomeUtils::XS is a XS implementation for List::SomeUtils. There are no user-facing parts here. See List::SomeUtils for API details.

MIME::Base64 module provides functions to encode and decode strings into and from the base64 encoding specified in RFC 2045 - MIME (Multipurpose Internet Mail Extensions). The base64 encoding is designed to represent arbitrary sequences of octets in a form that need not be humanly readable. A 65-character subset ([A-Za-z0-9+/=]) of US-ASCII is used, enabling 6 bits to be represented per printable character.

This is a unified interface to retrieve terminal size. It loads one module of a list of known alternatives, each implementing some way to get the desired terminal information. This loaded module will actually do the job on behalf of Term::Size::Any.

This module implement a UDP client for the statsd statistics collector daemon in use at Etsy.com.