WackoWiki

View source for Re: Does wackowiki allow users to use templates

If you look into the source of the MediaWiki template example, you can see that with that complexity there is no advantage the user is able to edit the template via a Wiki page.

Then it is better to have a meta page about the template, where users can suggest improvements.

The equvivalent in WackoWiki is the action. Additionally you can include other pages. In a action you can combine all aspects of the WackoWiki engine.

You might create a ##""{{tpl name="river"}}""## meta action and include other actions and asociated  templates, e.g. ##tpl_river.php## + ##tpl_river.tpl##.

The rest is PHP and HTML, optionally JavaScript.