function diff_tokens in Diff 7.3

Implements hook_tokens().

File

./diff.tokens.inc, line 29

Builds placeholder replacement tokens for diff-related data.

Code

function diff_tokens($type, $tokens, array $data = array(), array $options = array()) {
  $sanitize = !empty($options['sanitize']);
  $replacements = array();
  if ($type == 'node' && !empty($data['node'])) {
    $node = $data['node'];
    foreach ($tokens as $name => $original) {
      switch ($name) {

        // Basic diff standard comparison information.
        case 'diff':
        case 'diff-markdown':
          $revisions = node_revision_list($node);
          if (count($revisions) == 1) {
            $replacements[$original] = t('(No previous revision available.)');
          }
          else {
            module_load_include('inc', 'diff', 'diff.pages');
            $old_vid = _diff_get_previous_vid($revisions, $node->vid);
            $state = $name == 'diff' ? 'raw' : 'raw_plain';
            $build = diff_diffs_show($node, $old_vid, $node->vid, $state);
            unset($build['diff_table']['#rows']['states']);
            unset($build['diff_table']['#rows']['navigation']);
            unset($build['diff_preview']);
            $output = drupal_render_children($build);
            if ($sanitize) {
              $output = filter_xss($output, array(
                'a',
                'em',
                'strong',
                'cite',
                'blockquote',
                'code',
                'ul',
                'ol',
                'li',
                'dl',
                'dt',
                'dd',
                'table',
                'tr',
                'th',
                'td',
              ));
            }
            $replacements[$original] = $output;
          }
          break;
      }
    }
  }
  return $replacements;
}