Executes block template in context of blog given. Blog will be identified by it's path in site structure.

{% blogcontext "my_blog" %}{{ blog.rss_url }}{% endblogcontext %}
=> /my_blog.rss

If you use this block on blog layout or blog article layout, using blog variable outside of this block will act as normal blog associated with this page:

{% blogcontext "another_blog" %}{{ blog.rss_url }}{% endblogcontext %} - {{ blog.rss_url }}
=> /another_blog.rss - /current_blog.rss

If blog is not found from given address or page with this address is not a blog page, it will not evaluate block.