=over 4
-=item .
+=item C<.>
The period matches any single character.
-=item *
+=item C<*>
The asterisk matches zero or more instances of the preceding character.
Combine it with any other alphanumeric character or metacharacter.
-=item [ ]
+=item C<[ ]>
Square brackets around a list of characters match a single instance of any
of the characters, but no other characters; for example, C<[abc]> matches
a single C<a> or C<b> or C<c>, but not C<d> or C<A>. This expression can
be combined with the asterisk.
-=item ^
+=item C<^>
The caret, when used as the first character in a square-bracketed set,
designates a match with any single character I<except> the characters that
follow it; for example, C<[^a]> matches any single character except
lowercase C<a>. This expression can be combined with the asterisk.
-=item \
+=item C<\>
A backslash preceding any of the metacharacters in this list makes it
match its literal value only. For example, the expression C<\.> (backslash