rel-author is a microformat for linking a post to the URL representing its author.
Q: What is the meaning of the combination of
class="p-author h-card" as a one-line authorship inside an h-entry?
<a href="../" class="p-author h-card author-icon" rel="author" title="Tantek Çelik"><img src="../logo.jpg" alt="Tantek Çelik"></a>
It's not clear to me why
rel="author" is used in this instance, but not in other, more verbose, h-card instances. Is the implication of the combination, "The h-card is found at this URL" instead of "This is the h-card"? So far I have interpreted the
class="p-author h-card" to mean "This is the h-card." gRegor Morrill
rel="author" is for legacy parsers that only support rel-author + rel-me for determining authorship, and don't support h-card yet (e.g. Google spiders). It is easy enough to add the rel-author to one-line h-cards.
In more verbose h-cards, using rel-author would add complexity and the cost of that complexity is likely worse than ignoring legacy parsers. It's a trade-off, but the recommendation to not use rel-author with more complex h-cards.