=item charnames
-Define character names for C<\N{named}> string literal escape.
+Define character names for C<\N{named}> string literal escapes.
=item constant
Perl compiler pragma to force verbose warning diagnostics
+=item encoding
+
+Pragma to control the conversion of legacy data into Unicode
+
=item fields
Compile-time class fields
Enable simple signal handling
+=item sort
+
+Control sort() behaviour
+
=item strict
Restrict unsafe constructs
Predeclare sub names
-=item unicode::distinct
+=item threads
-Strictly distinguish UTF8 data and non-UTF data.
+Perl extension allowing use of interpreter based threads from perl
=item utf8
Predeclare global variable names (obsolete)
+=item vmsish
+
+Control VMS-specific language features
+
=item warnings
Control optional warnings
=item File::Spec::Mac
-File::Spec for MacOS
+File::Spec for Mac OS (Classic)
=item File::Spec::OS2
=item File::Spec::Unix
-Methods used by File::Spec
+File::Spec for Unix, base for other File::Spec modules
=item File::Spec::VMS
Convert POD data to formatted *roff input
+=item Pod::ParseLink
+
+Parse an L<> formatting code in POD text
+
=item Pod::ParseUtils
Helpers for POD parsing and conversion
Print a usage message from embedded pod documentation
+=item Pod::t::basic
+
+Test of various basic POD features in translators.
+
=item SDBM_File
Tied access to sdbm files
Provides a simple framework for writing test scripts
+=item Test::Builder
+
+Backend for building test libraries
+
=item Test::Harness
Run perl standard test scripts with statistics
Basic utilities for writing tests.
+=item Test::Tutorial
+
+A tutorial about writing really basic tests
+
=item Text::Abbrev
Create an abbreviation table from a list
Line wrapping to form simple paragraphs
+=item Thread
+
+Manipulate threads in Perl
+
=item Tie::Array
Base class for tied arrays
Base class for ALL classes (blessed references)
-=item UnicodeCD
+=item Unicode::Collate
+
+Use UCA (Unicode Collation Algorithm)
+
+=item Unicode::UCD
Unicode character database
Extension modules are written in C (or a mix of Perl and C). They
are usually dynamically loaded into Perl if and when you need them,
-but may also be be linked in statically. Supported extension modules
+but may also be linked in statically. Supported extension modules
include Socket, Fcntl, and POSIX.
Many popular C extension modules do not come bundled (at least, not