Pod::Elemental::Transformer::Gatherer(3)

NAME
Pod::Elemental::Transformer::Gatherer - gather related paragraphs under a shared header

VERSION
version 0.103006

OVERVIEW
Like the Nester transformer, this Gatherer produces structure and containment in a Pod document. Unlike that Nester, it does not find top-level elements, but instead produces them.

It looks for all elements matching the "gather_selector". They are removed from the node. In the place of the first found element, the "container" node is placed into the transformed node, and all the gathered elements are made children of the container.

So, given this document:

  Document
    =head1 Foo
    =over 4
    =item * xyzzy
    =item * abcdef
    =back
    =head1 Bar
    =over 4
    =item * 1234
    =item * 8765
    =back

...and this nester...

  my $gatherer = Pod::Elemental::Transformer::Gatherer->new({
    gather_selector => s_command( [ qw(over item back) ] ),
    container       => Pod::Elemental::Element::Pod5::Command->new({
      command => 'head1',
      content => "LISTS\n",
    }),
  });

Then this:

  $nester->transform_node($document);

Will result in this document:

  Document
    =head1 Foo
    =head1 LISTS
      =over 4
      =item * xyzzy
      =item * abcdef
      =back
      =over 4
      =item * 1234
      =item * 8765
      =back
    =head1 Bar

PERL VERSION
This library should run on perls released even a long time ago. It should work on any version of perl released in the last five years.

Although it may work on older versions of perl, no guarantee is made that the minimum required version will not be increased. The version may be increased for any reason, and there is no promise that patches will be accepted to lower the minimum required perl.

ATTRIBUTES

  gather_selector
This is a coderef (a predicate) used to find the paragraphs to gather up.

  container
This is a Pod::Elemental::Node that will be inserted into the node, containing all gathered elements.

AUTHOR
Ricardo SIGNES <cpan@semiotic.systems>

COPYRIGHT AND LICENSE
This software is copyright (c) 2022 by Ricardo SIGNES.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.