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

Devel::LexAlias provides the ability to alias a lexical variable in a subroutines scope to one of your choosing.

When an undefined variable is dereferenced, it gets silently upgraded to an array or hash reference (depending of the type of the dereferencing). This behaviour is called autovivification and usually does what you mean but it may be unnatural or surprising because your variables get populated behind your back. This is especially true when several levels of dereferencing are involved, in which case all levels are vivified up to the last, or when it happens in intuitively read-only constructs like exists. The pragma provided by this package lets you disable autovivification for some constructs and optionally throws a warning or an error when it would have happened.

XML::Writer is a simple Perl module for writing XML documents: it takes care of constructing markup and escaping data correctly. By default, it also performs a significant amount of well-formedness checking on the output to make certain (for example) that start and end tags match, that there is exactly one document element, and that there are not duplicate attribute names.

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

This module provides a general-purpose clone function to make deep copies of Perl data structures. It calls itself recursively to copy nested hash, array, scalar and reference types, including tied variables and objects.

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.

DateTime is a class for the representation of date/time combinations. It represents the Gregorian calendar, extended backwards in time before its creation (in 1582).

This module implements the Brew edit distance that is very close to the dynamic programming technique used for the Wagner-Fischer (and so for the Levenshtein) edit distance.

XString provides the B string helpers in one isolated package. Right now only cstring and perlstring are available.

This module converts Perl data structures to JSON and vice versa.

This package provides various utility functions. When used without argument, this module provides four universally accessible attributes of general interest as follows:

• Abstract

• Alias

• Memoize

• Method

• SigHandler

This module provides functions to encode and decode UTF-8 encoding form as specified by Unicode and ISO/IEC 10646:2011.

When subclassing a class, you may occasionally want to dispatch control to the superclass---at least conditionally and temporarily. This module provides nicer equivalents to the native Perl syntax for calling superclasses, along with a universal super method to determine a class' own superclass, and better support for run-time mix-ins and roles.

This module simply interpolates option file hints in @ARGV by the contents of the pointed files. This enables option reading from files instead of or additional to the usual reading from the command line.

Unicode::LineBreak implements the line breaking algorithm described in Unicode Standard Annex #14. The East_Asian_Width property defined by Annex #11 is used to determine breaking positions.

MooX::Types::MooseLike provides a possibility to build your own set of Moose-like types. These custom types can then be used to describe fields in Moo-based classes.

Data::Dump::Streamer provides ways to accurately serialize a data structure as Perl code.

Crypt::PasswdMD5 provides various crypt()-compatible interfaces to the MD5-based crypt() function found in various *nixes. It is based on the implementation found on FreeBSD 2.2.[56]-RELEASE.

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 package provides a set of numeric types to be used in Moo-based classes, adapted from MooseX::Types::Common::Numeric.

This module provides a file handle that hides the beginning of a file, by modifying the seek() and tell() calls.

perlcritic is a Perl source code analyzer. It is the executable front-end to the Perl::Critic engine, which attempts to identify awkward, hard to read, error-prone, or unconventional constructs in your code. Most of the rules are based on Damian Conway's book "Perl Best Practices". However, perlcritic is not limited to enforcing PBP, and it will even support rules that contradict Conway. All rules can easily be configured or disabled to your liking.

The package provides Perl bindings to OpenGL, GLU and FreeGLUT.