hexo-tag-eval execute Hexo helper in the post.
Helper be used not only in theme but also in post via this plugin.
Limite to Hexo, it only support the helper doesn't use any this objects.
npm install git://github.com/kywk/hexo-tag-eval.git --save
{% eval HELPER_NAME [HELPER_ARGS] %}
Here is a example add TOC to post
{% eval toc data.content %}
npm update
npm uninstall hexo-tag-eval