File::Grep provides similar functionality as perl's builtin grep, map, and foreach commands, but iterating over a passed filelist instead of arrays. While trivial, this module can provide a quick dropin when such functionality is needed.

The fundamental task of the autoformat subroutine is to identify and rearrange independent paragraphs in a text. Paragraphs typically consist of a series of lines containing at least one non-whitespace character, followed by one or more lines containing only optional whitespace. This is a more liberal definition than many other formatters use: most require an empty line to terminate a paragraph. Paragraphs may also be denoted by bulleting, numbering, or quoting (see the following sections).

This package provides a lexical analyzer for Perl5.

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.

This module provides bare bones try/catch/finally statements that are designed to minimize common mistakes with eval blocks, and nothing else.

CHI provides a unified caching API, designed to assist a developer in persisting data for a specified period of time.

The CHI interface is implemented by driver classes that support fetching, storing and clearing of data. Driver classes exist or will exist for the gamut of storage backends available to Perl, such as memory, plain files, memory mapped files, memcached, and DBI.

Test::Run is an improved test harness, originally based on Test::Harness version 2.xx by Michael G. Schwern, Andy Lester and others.

The top-level "Test::Run" by itself does not do much. You should refer to Task::Test::Run::AllPlugins for more detailed instructions.

This module provides a convenient way to perform cleanup or other forms of resource management at the end of a scope. It is particularly useful when dealing with exceptions: the Scope::Guard constructor takes a reference to a subroutine that is guaranteed to be called even if the thread of execution is aborted prematurely. This effectively allows lexically-scoped "promises" to be made that are automatically honoured by perl's garbage collector.

Text::Aligner exports a single function, align(), which is used to justify strings to various alignment styles.

This module provides a clone() method which makes recursive copies of nested hash, array, scalar and reference types, including tied variables and objects.

Text::ParseWords module is used to parse text into an array of tokens or array of arrays.

Data::SExpression parses Lisp S-Expressions into Perl data structures.

Date::Manip is a series of modules for common date/time operations, such as comparing two times, determining a date a given amount of time from another, or parsing international times.

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).

Config::Grammar is a module to parse configuration files. The configuration may consist of multiple-level sections with assignments and tabular data.

This module inserts values into (translated) strings. It provides printf and sprintf alternatives via both an object-oriented and a functional interface.

A monitor provides per-instance mutual exclusion for objects. This means that for a given object instance, only one thread can ever be inside its methods at a time. This is achieved by a lock being associated with each object. The lock is acquired automatically at the entry to each method in the monitor. Condition variables are also supported.

A URI implementation using Raku grammars to implement RFC 3986 BNF. Currently only implements parsing. Includes URI::Escape to (un?)escape characters that aren't otherwise allowed in a URI with % and a hex character numbering.

This library provides support modules for NQP and Rakudo Configure.pl scripts.

This is a Raku module that makes it easy to write Scalable Vector Graphic files (SVG). Right now it is a shallow wrapper around XML::Writer, adding only the xmlns attributes that identify an XML file as SVG.

This is released as a dependency of JSON::Marshal and JSON::Unmarshal in order to save duplication, it is intended to store a separate JSON name for an attribute where the name of the JSON attribute might be changed, either for aesthetic reasons or the name is not a valid Perl identifier. It will of course also be needed in classes that are going to use JSON::Marshal or JSON::Unmarshal for serialization/deserialization.

This Raku module implements encoding and decoding to and from base64.

Rakudo is a compiler that implements the Raku specification and runs on top of several virtual machines.

This module provides a simple debugger for grammars. Just use it: use Grammar::Debugger; and any grammar in the lexical scope of the use statement will automatically have debugging enabled. The debugger will break execution when you first enter the grammar, and provide a prompt.