Extension modules can now cleanly hook into the Perl parser to define
new kinds of keyword-headed expression and compound statement. The
syntax following the keyword is defined entirely by the extension. This
-allow a completely non-Perl sublanguage to be parsed inline, with the
+allows a completely non-Perl sublanguage to be parsed inline, with the
correct ops cleanly generated.
See L<perlapi/PL_keyword_plugin> for the mechanism. The Perl core
=head2 @INC reorganization
-In C<@INC>, C<ARCHLIB> and C<PRIVLIB> now occur after after the current
+In C<@INC>, C<ARCHLIB> and C<PRIVLIB> now occur after the current
version's C<site_perl> and C<vendor_perl>. Modules installed into
C<site_perl> and C<vendor_perl> will now be loaded in preference to
those installed in C<ARCHLIB> and C<PRIVLIB>.
WJ, and similar characters, plus bidirectional controls.
C<\p{Alpha}> now matches the same characters as C<\p{Alphabetic}>. Before
-5.12, Perl's definition definition included a number of things that aren't
+5.12, Perl's definition included a number of things that aren't
really alpha (all marks) while omitting many that were. The definitions
of C<\p{Alnum}> and C<\p{Word}> depend on Alpha's definition and have
changed accordingly.