Theme HELP HERE: template.php code

The current version of this module has some nice code for you to copy from the .module file and use in your template.php file, so you can have a nice theme_links-rendered list. There is also an example theme function in a file packaged with the module, that demonstrates how to show the previous/next node titles in the pager.

The second method is more resource-intensive, as it calls two further [expensive] node_load()s that are not required, other than to fetch the title from the nodes either side of the current one. In a smaller site, the cost of the operation may be outweighed by the benefit of the links being titled. Also, there is a marginal case for SEO improvement here (internal linking).

That said, here is a function which performs the second task, as per eaton's code from theme_sample.php - this version, however, is rewritten so that the rendered html is in a similar format to that of the function in the actual module. The module code renders a themed list of links; the demo code currently outputs a div. Anyway, enough of my yakkin', here's some code.

function s4w_custom_pager($nav_array, $node, $pager) {
  if (is_numeric($nav_array['prev'])) {
    $prev = node_load($nav_array['prev']);
  }
  if (is_numeric($nav_array['next'])) {
    $next = node_load($nav_array['next']);
  }
  if ($prev || $next) {
    $links = array();
    $links['custom_pager_prev'] = array(
      'title' => t('« ' . $prev->title),
      'href' => !empty($nav_array['prev']) ? 'node/'. $nav_array['prev'] : NULL,
    );
    $links['custom_pager_index'] = array(
      'title' => ($nav_array['current_index'] + 1) .' of '. count($nav_array['full_list']),
    );
    $links['custom_pager_next'] = array(
      'title' => t($next->title . ' »'),
      'href' => !empty($nav_array['next']) ? 'node/'. $nav_array['next'] : NULL,
    );
  }
  return theme('links', $links, array('class' => "custom-pager custom-pager-$pager->pid custom-pager-$node->type"));
}

NB I don't know how eaton created the ' â~@º' strings in the original theme function (these render as a single angled quote) - they won't work if you cut & paste from the code or enter the entity code either. In my actual function I had to use vim to copy the relevant chunk and reuse the actual lines that way.