Fragment support

A first patch, more proof of concept, this for nid-plugin, checks if there is a anchor in the link, and if so use it. We also need to add so that the # is not encoded, that i have not done yet.

This would need to pass tests and may even need them to be updated/extended.

I have been able to add support for fragments in freelinking 7.x-3.2 for paths, I am not sure if the fragments work for additional types. In the freelinking.module file, starting at line 219 add the fragment section after the internal or external link check:

  // Is this an internal or external link?
  $parts = parse_url($link[1]);
  if (isset($parts['host']) && $parts['host'] != $_SERVER['SERVER_NAME']) {
    $link[2]['attributes']['class'][] = 'freelink-external';
  }
  else {
    $link[2]['attributes']['class'][] = 'freelink-internal';
  }

  // This checks for and alters the link if there is a fragment.
  if (isset($parts['fragment'])) {
    $link[2]['fragment'] = $parts['fragment'];
    if (isset($parts['path']) && (strlen($parts['path']) - 1) == strrpos($parts['path'], '/')) {
      $link[1] = '';
      $link[2]['external'] = TRUE;
    }
    else {
      unset($parts['fragment']);
      $link[1] = implode($parts);
    }
  }

This may not cover all cases, but it has worked for basic paths that include fragments on the same page and for different pages. I have not tried to use this for nodes, but you are welcome to try it and see if it works.

Promoting this feature request to latest version.

However, I do not think this should be tied to a plugin that locates the fragment to a specific nid or path. The main utility of having links to fragment must be the ability to move a fragment from one node to another, and the link would still work.

I don't think this can be made workable without having a db table with unique fragment names and the nids they're live in. The table can be kept up to date by means of hook_node_update().

This means that fragments should be handled by a fragment pluging, e.g. [[fragment:Introduction]].