Inspired by gRegor Morrill’s IndieWebCamp Austin project, I went back and took a look at some of my read posts, and particularly for books.
For online material, I use the Post Kinds Plugin which does a good job of adding h-cite and p-read-of (experimental) microformats classes to the data for the…
Test with a full link and a u-in-reply-to.
Test #2 with a zero width space and u-in-reply-to.
Test #3 with an empty anchor.