Basic utilities for writing tests in perl

https://metacpan.org/release/Test-Simple

Track the number of times subs are called

https://metacpan.org/release/Test-SubCalls

Tools to test taintedness

https://metacpan.org/release/Test-Taint

Helps to test various Test::Builder derivatives

http://search.cpan.org/dist/Test-Tester/

Automatic and manual text wrapping and reformating formatting

https://metacpan.org/release/Text-Autoformat

Extract delimited text sequences from strings

https://metacpan.org/release/Text-Balanced

Text::Diff - Perform diffs on files and record sets

https://metacpan.org/release/Text-Diff

Match globbing patterns against text

https://metacpan.org/release/Text-Glob

Perl interface to iconv() codeset conversion function

https://metacpan.org/release/Text-Iconv

Read record-oriented files

https://metacpan.org/release/Text-RecordParser

Manual text wrapping and reformatting

https://metacpan.org/release/Text-Reform

Line wrapping to form simple paragraphs

https://metacpan.org/release/Text-Tabs+Wrap

Display text in formatted table output

https://metacpan.org/release/Text-TabularDisplay

Track changes between documents

https://metacpan.org/release/Text-WordDiff

Perl module implementing ordered in-memory associative arrays

http://search.cpan.org/dist/Tie-IxHash/

Perl5 module implementing High resolution time, sleep, and alarm

https://metacpan.org/release/Time-HiRes

Efficiently compute time from local and GMT time

https://metacpan.org/release/Time-Local

Perl5 module containing a better/faster date parser for absolute dates

https://metacpan.org/release/TimeDate

Re-port of a perl5 interface to Tk8.4

https://metacpan.org/release/Tk

Minimal try/catch with proper localization of

https://metacpan.org/release/Try-Tiny

Moniker for classes

https://metacpan.org/release/UNIVERSAL-moniker

Perl module to require() from a variable

https://metacpan.org/release/UNIVERSAL-require

Perl5 interface to Uniform Resource Identifier (URI) references

https://metacpan.org/release/URI

Perl class that converts strings to/from 2-byte Unicode UCS2 format

https://metacpan.org/release/Unicode-Map

Mapping table between 8-bit chars and Unicode

https://metacpan.org/release/Unicode-Map8

Perl class that implements conversion between arbitrary charsets

https://metacpan.org/release/Unicode-MapUTF8

These are experimental Perl5 modules to handle various Unicode issues

https://metacpan.org/release/Unicode-String

Associate user-defined magic to variables from Perl

https://metacpan.org/release/Variable-Magic

Database of robots.txt-derived permissions

https://metacpan.org/release/WWW-RobotRules

Perl module for building DOM Level 1 compliant document structures

https://metacpan.org/release/XML-DOM

Filter to put all characters() in one event

https://metacpan.org/release/XML-Filter-BufferText

Perl-style XML objects

https://metacpan.org/release/XML-Grove

Yet another Perl SAX XML Writer

https://metacpan.org/release/XML-Handler-YAWriter

Interface to Gnome libxml2 library

https://metacpan.org/release/XML-LibXML

Simple generic namespace support class

https://metacpan.org/release/XML-NamespaceSupport

Perl extension interface to James Clark's XML parser, expat

https://metacpan.org/release/XML-Parser

Pure Perl implementation for an XML-RPC client and server

https://metacpan.org/release/XML-RPC

Perl extension to manage RDF Site Summary (RSS) files

https://metacpan.org/release/XML-RSS

Regular expressions for XML tokens

https://metacpan.org/release/XML-RegExp

Simple API for XML

https://metacpan.org/release/XML-SAX

Base class SAX Drivers and Filters

https://metacpan.org/release/XML-SAX-Base

Simple API for XML

https://metacpan.org/release/XML-SAX-Expat

SAX2 XML Writer

https://metacpan.org/release/XML-SAX-Writer

Trivial API for reading and writing XML (esp config files)

https://www.mclean.net.nz/

XML::Stream provides you with access to XML Stream

https://metacpan.org/release/XML-Stream

Pure Perl implementation for parsing/writing xml files

https://metacpan.org/release/XML-TreePP

Process huge XML documents by chunks via a tree interface

https://metacpan.org/release/XML-Twig

Simple Perl module for writing XML documents

https://metacpan.org/release/XML-Writer

Modules for parsing and evaluating XPath statements

https://metacpan.org/release/XML-XPath

YAML implementation in Perl

https://metacpan.org/release/YAML