+=head2 C<localize_delete $what, $key, $level>
+
+Similiar to L</localize>, but for deleting variables or array/hash elements.
+C<$what> can be:
+
+=over 4
+
+=item *
+
+A glob, in which case C<$key> is ignored and the call is equivalent to C<local *x>.
+
+=item *
+
+A string beginning with C<'@'> or C<'%'>, for which the call is equivalent to respectiveley C<local $a[$key]; delete $a[$key]> and C<local $h{$key}; delete $h{$key}>.
+
+=item *
+
+A string beginning with C<'&'>, which more or less does C<undef &func> in the upper scope.
+It's actually more powerful, as C<&func> won't even C<exists> anymore.
+C<$key> is ignored.
+
+=back
+
+=head2 C<unwind @values, $level>
+
+Returns C<@values> I<from> the context indicated by C<$level>, i.e. from the subroutine, eval or format just above C<$level>.
+The upper level isn't coerced onto C<@values>, which is hence always evaluated in list context.
+
+=head1 WORDS
+
+=head2 C<TOP>