[Plugin: WP Search Extracts] Suggestions for plugin

I’ve just implemented this on a site, just what I was looking for. Looked through your code, simple and nice.
One thing I might suggest is not cutting words midway, I attempted to implement http://www.justin-cook.com/wp/2006/06/27/php-trim-a-string-without-cutting-any-words/
But I didn’t get very far.
Another addition is to add a ‘…’ in front of and behind the extract.

Thanks

http://ww.wp.xz.cn/extend/plugins/wp-search-extracts/