Number::Format is a library for formatting numbers. Functions are provided for converting numbers to strings in a variety of ways, and to convert strings that contain numbers back into numeric form. The output formats may include thousands separators - characters inserted between each group of three characters counting right to left from the decimal point. The characters used for the decimal point and the thousands separator come from the locale information or can be specified by the user.

One recurring problem in modules that use Scalar::Util's weaken function is that it is not present in the pure-perl variant. If Scalar::Util is not available at all, it will issue a normal dependency on the module. However, if Scalar::Util is relatively new ( it is >= 1.19 ) and the module does not have weaken, the install will bail out altogether with a long error encouraging the user to seek support.

This package provides tools for sorting and comparing Unicode data.

MooseX::Object::Pluggable makes your classes pluggable.

This module brings the speed advantages of Set::IntSpan (written by Steven McDougall) to arrays. Uses include manipulating grades, routing tables, or any other situation where you have mutually exclusive ranges of integers that map to given values.

Exporter::Lite is an alternative to Exporter, intended to provide a lightweight subset of the most commonly-used functionality. It supports import(), @EXPORT and @EXPORT_OK and not a whole lot else.

Xslate is a template engine, tuned for persistent applications, safe as an HTML generator, and with rich features. The core design principle is that template logic does not have access outside the template without permission.

This package compiles yacc-like Look Ahead LR (LALR) grammars to generate Perl object oriented parser modules.

This module automagically generates accessors/mutators for your class.

Sub::Exporter is an incredibly powerful module, but with that power comes great responsibility, as well as some runtime penalties. This module is a "Sub::Exporter" wrapper that will let your users just use Exporter if all they are doing is picking exports, but use "Sub::Exporter" if your users try to use "Sub::Exporter"'s more advanced features, like renaming exports, if they try to use them.

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

Crypt::UnixCrypt_XS implements the DES-based Unix crypt function. For those who need to construct non-standard variants of crypt, the various building blocks used in crypt are also supplied separately.

Date::Calc::XS is an XS wrapper and C library plug-in for Date::Calc.

Magic is Perl's way of enhancing variables. This mechanism lets the user add extra data to any variable and hook syntactical operations (such as access, assignment or destruction) that can be applied to it. With this module, you can add your own magic to any variable without having to write a single line of XS.

This pragma allows you to declare constants at compile-time. When a constant is used in an expression, Perl replaces it with its value at compile time, and may then optimize the expression further. In particular, any code in an if (CONSTANT) block will be optimized away if the constant is false.

Exporter::Tiny supports many of Sub::Exporter's external-facing features including renaming imported functions with the `-as`, `-prefix` and `-suffix` options; explicit destinations with the `into` option; and alternative installers with the `installer` option. But it's written in only about 40% as many lines of code and with zero non-core dependencies.

This module is for reading record-oriented data in a delimited text file. The most common example have records separated by newlines and fields separated by commas or tabs, but this module aims to provide a consistent interface for handling sequential records in a file however they may be delimited.

This module provides syntactical support for try/catch control flows.

This collection of modules enables writing Perl programs that perform asynchronous input/output (IO) operations. A typical program using them would consist of a single subclass of IO::Async::Loop to act as a container of other objects, which perform the actual IO work required by the program. As well as IO handles, the loop also supports timers and signal handlers, and includes more higher-level functionality built on top of these basic parts.

ExtUtils::Config is an abstraction around the %Config hash. By itself it is not a particularly interesting module by any measure, however it ties together a family of modern toolchain modules.

IPC::Cmd allows for the searching and execution of any binary on your system. It adheres to verbosity settings and is able to run interactively. It also has an option to capture output/error buffers.

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

shell-quote lets you pass arbitrary strings through the shell so that they won't be changed.

File::Temp can be used to create and open temporary files in a safe way.