Over at my Curl blog I added a post on return, the Curl macro.
What I could have added were the tags of some of my bookmarks in my Curl Documentation Viewer, such as
never-returns
unreachable
EmptySource
OpenPackage
But I think that Curl templates are a very handy way to implement alternative technical ebooks: what is needed is for a technical ebook publisher such as Springer to adopt Curl as an alternative offering.
Regardless, I must get over to Lulu about that Curl ebook …