DWiki can now generate Atom feeds for recently changed pages and recently made comments, either for the entire DWiki or for some subtree of it. For comments, this can be down to an individual article.
At the moment, pages in the Atom feed are rendered without macros
CutShort, for efficiency reasons. All of the links
are turned into absolute links (with http:// et al), since this is
basically required. Nulled-out macros produce a small message to that
effect in the generated content, so that people reading the Atom feed
can tell that something is going on.
Atom feeds are implemented as two new views, 'atom' and 'atomcomments', with a associated pile of new renderers. Unfortunately the requirements of the Atom XML format make it all but impossible to reuse standard renderers to display the content of things, because all the actual HTML has to be escaped into oblivion. (Plus, bonus absolute links.)
ChrisSiebenmann doesn't like the view name 'atomcomments' and may come up with a better one sometime.
There is a new
atom::feeds renderer that creates the core of a feed
toolbar. (ChrisSiebenmann decided that this fit badly into the page
toolbar, which is for things that the browser can show you
natively. Atom feeds are a different sort of tool.)
The Atom feed is almost but not quite 100% valid. The invalid bit is that the latest Atom RFC has changed the tags used for dates; DWiki generates both old and new date tags, which is invalid in either view.