Remove link from the last crumb

Currently I don't need it, but consider to implement that for specific cases.

Some related topics:
#117528: Unlinked breadcrumb
#264356: Make breadcrumb entry *not* a link?
#492724: 'Force the active trail' removes appended title from breadcrumb
http://drupal.org/node/103174
http://drupal.org/node/103174#comment-1756386

Yes, I need this.
This will do workaround for: #920510: Support $_GET parameters for search functionality.

Probably this could be done by pre-process function before the rendering. I'll have a look.

To do this, I need following solutions or the right directions:

1.
New property in $item, i.e.: $item->link (bool).
Then in the class you can specify:

$item->link = FALSE;

to disable the link (by default: TRUE).

2.
How I can determine inside the class on which element currently I am.
I.e.:
doc_search/all/1234?s=English
on: 'doc_search/all' - 2nd crumb of total 3
Or in other words, if you do: '$item->link = FALSE;' in current class, how do I know which element it's in the rendered form?
Then I'd be able to remove the link tags from rendered breadcrumb based on position and settings programatically.

No, it's even simpler.

function crumbs_build_breadcrumb($trail) {
  $breadcrumb = array();
  foreach ($trail as $path => $item) {
    $breadcrumb[] = $item->link();
  }
  return $breadcrumb;
}

Where $item->link(); returns the link.
Lets create method $item->plain(); when specified crumb has $item->link = FALSE;?

Tested with following method:

  function decorate__doc_search_all($path, $item) {
    if ($path == 'doc_search/all') {
        $item->title = t('Search');
        $item->link = FALSE;
    } 
  }

'Search' item is not link anymore.

Fixes as well: #921786: Empty last "active" crumb when trying to remove the last element,
so link() returns NULL, if the title or path is empty.

I'm not sure about class names, you can change them as you prefer.

http://drupal.org/project/crumbs_plus