DateTime::Format::Natural takes a string with a human readable date/time and creates a machine readable one by applying natural parsing logic.

This package provides a way to memory map a file.

Date::Range is a library to work with date ranges. It can be used to determine whether a given date is in a particular range, or what the overlap between two ranges are.

Mail::Sendmail is a pure perl module that provides a simple means to send email from a perl script. The module only requires Perl5 and a network connection.

This module tries to make it easy to build Perl extensions that use functions and typemaps provided by other perl extensions. This means that a perl extension is treated like a shared library that provides also a C and an XS interface besides the perl one.

This module provide a convenient way to create directories of arbitrary depth and to delete an entire directory subtree from the file system.

A pure Perl implementation of the RC4 algorithm.

Exporter::Declare is a meta-driven exporting tool. It tries to adopt all the good features of other exporting tools, while replacing bad interfaces. Exporter::Declare also provides hooks that allow you to add options and arguments for import. Exporter::Declare's meta-driven system allows for top-notch introspection.

This module disables bareword filehandles.

RFCs 2822 and 822 specify date formats to be used by email. This module parses and emits such dates.

This module exports methods useful for factory classes.

This module provides a small, fast utility for working with file paths.

Pod::Parser is a base class for creating POD filters and translators. It handles most of the effort involved with parsing the POD sections from an input stream, leaving subclasses free to be concerned only with performing the actual translation of text.

NOTE: This module is considered legacy. New projects should prefer Pod::Simple instead.

Stream::Buffered is a buffer class to store arbitrary length of byte strings and then get a seekable filehandle once everything is buffered. It uses PerlIO and/or temporary file to save the buffer depending on the length of the size.

Text::Haml implements Haml http://haml.info/docs/yardoc/file.REFERENCE.html specification.

Crypt::DES is an XS-based implementation of the DES cryptography algorithm. The module implements the Crypt::CBC interface which has blocksize, keysize, encrypt and decrypt functions.

PPIx::Utilities is a collection of functions for dealing with PPI objects, many of which originated in Perl::Critic. They are organized into modules by the kind of PPI class they relate to, by replacing the "PPI" at the front of the module name with "PPIx::Utilities", e.g. functionality related to PPI::Nodes is in PPIx::Utilities::Node.

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

Text::Glob implements glob(3) style matching that can be used to match against text, rather than fetching names from a file system. If you want to do full file globbing use the File::Glob module instead.

Authen::DecHpwd implements the SYS$HASH_PASSWORD password hashing function from VMS (also known as LGI$HPWD) and some associated VMS username and password handling functions. The password hashing function is implemented in XS with a pure Perl backup version for systems that cannot handle XS.

This module implements most of `strptime(3)`, the POSIX function that is the reverse of `strftime(3)`, for `DateTime`. While `strftime` takes a `DateTime` and a pattern and returns a string, `strptime` takes a string and a pattern and returns the `DateTime` object associated.

String::Format lets you define arbitrary printf-like format sequences to be expanded. This module would be most useful in configuration files and reporting tools, where the results of a query need to be formatted in a particular way. It was inspired by mutt's .

Cwd::Guard changes the current directory using a limited scope. It returns to the previous working directory when the object is destroyed.

File::Which was created to be able to get the paths to executable programs on systems under which the `which' program wasn't implemented in the shell.