\R Linebreak
See L<perlrecharclass/Backslashed sequences> for details on
-on C<\w>, C<\W>, C<\s>, C<\S>, C<\d>, C<\D>, C<\p>, C<\P>, C<\N>, C<\v>, C<\V>,
+C<\w>, C<\W>, C<\s>, C<\S>, C<\d>, C<\D>, C<\p>, C<\P>, C<\N>, C<\v>, C<\V>,
C<\h>, and C<\H>.
See L<perlrebackslash/Misc> for details on C<\R> and C<\X>.
[[:lower:]] Any lowercase character.
[[:print:]] Any printable character, including a space.
[[:punct:]] Any graphical character excluding "word" characters.
- [[:space:]] Any whitespace character. "\s" plus the vertical tab ("\cK").
+ [[:space:]] Any whitespace character. "\s" plus vertical tab ("\cK").
[[:upper:]] Any uppercase character.
[[:word:]] A Perl extension, equivalent to "\w".
[[:xdigit:]] Any hexadecimal digit.