url tag is not supported

[Andreas Stenius]

In django, there's a url tag. Sure enough, it will be application specific what the result of the url tag is to be.

I think we want to provide some sort of api for it, instead of leaving it for the application to provide it as a custom tag.

[Ludovic Dem]

Basically an URL is a path with some placeholders "/base/path/[some]/[vars]/[...]". So we should provide API with a route identifier and vars as in {% url "my_route" some="foo" vars="bar" %}. The user is responsible to provide a fun in compile options like {url_fun, fun my_router:generate/2} which is passed the route identifier and the vars.