1;
+=for apidoc filter_add
+=for apidoc filter_read
+
All Perl source filters are implemented as Perl classes and have the
same basic structure as the example above.
you must use C<m/.../> or C<m?...?> for such patterns. Also, the presence of
regexes specified with raw C<?...?> delimiters may cause mysterious
errors. The workaround is to use C<m?...?> instead. See
-L<http://search.cpan.org/perldoc?Switch#LIMITATIONS>
+L<https://search.cpan.org/perldoc?Switch#LIMITATIONS>
Currently the content of the C<__DATA__> block is not filtered.