Both the C<\p> counterparts always assume Unicode rules are in effect.
On ASCII platforms, this means they assume that the code points from 128
to 255 are Latin-1, and that means that using them under locale rules is
-unwise unless the locale is guaranteed to be Latin-1. In contrast, the
+unwise unless the locale is guaranteed to be Latin-1 or UTF-8. In contrast, the
POSIX character classes are useful under locale rules. They are
affected by the actual rules in effect, as follows:
=back
-Which rules apply are determined as described in L<perlre/Which character set modifier is in effect?>.
+Which rules apply are determined as described in
+L<perlre/Which character set modifier is in effect?>.
It is proposed to change this behavior in a future release of Perl so that
whether or not Unicode rules are in effect would not change the