=item *
-GMAGIC (right-hand side magic) could in many cases such as concatenation
-of string be invoked too many times.
+GMAGIC (right-hand side magic) could in many cases such as string
+concatenation be invoked too many times.
=item *
=item *
-The MAGIC constants (e.g. C<'P'>) have been macrofied
-(e.g. C<PERL_MAGIC_TIED>) for better source code readability
-and maintainability.
+The C<op_clear> and C<op_null> are now exported.
=item *
-The C<op_clear> and C<op_null> are now exported.
+A new special regular expression variable has been introduced:
+C<$^N>, which contains the most-recently closed group (submatch).
=item *
L<perlhack>. There is a make target "perl.gprof" for generating a
gprofiled Perl executable.
-=item *
-
-(Code documentation) F<perly.c> and F<sv.c> have now been extensively
-commented.
-
=back
=head1 Installation and Configuration Improvements
=item *
-The C code has been made much more C<gcc -Wall> clean. Some warning
-messages still remain, though, so if you are compiling with gcc you
-will see some warnings about dubious practices. The warnings are
-being worked on.
-
-=item *
-
In AFS installations one can configure the root of the AFS to be
somewhere else than the default F</afs> by using the Configure
parameter C<-Dafsroot=/some/where/else>.
=back
-=head1 Changed Internals
+=head1 Source Code Enhancements
+
+=head2 MAGIC constants
+
+The MAGIC constants (e.g. C<'P'>) have been macrofied
+(e.g. C<PERL_MAGIC_TIED>) for better source code readability
+and maintainability.
+
+=head2 Better commented code
+
+F<perly.c>, F<sv.c>, and F<sv.h> have now been extensively commented.
=head2 Regex pre-/post-compilation items matched up
C<offsets> member of the C<struct regexp>. See L<perldebguts> for more
complete information.
+=head2 gcc -Wall
+
+The C code has been made much more C<gcc -Wall> clean. Some warning
+messages still remain, though, so if you are compiling with gcc you
+will see some warnings about dubious practices. The warnings are
+being worked on.
+
=head1 New Tests
Several new tests have been added, especially for the F<lib> subsection.