> So yes, an update with an empty content, title, and summary would > be almost like a delete -- but that would also be an invalid atom:entry :(. > I believe issues like this are what drove the deleted-entry mechanism.
Looking at the spec, it appears to be "not advised", but it's not a violation. At least as far as I can tel... 4.1.1.1 Providing Textual Content Experience teaches that feeds that contain textual content are in general more useful than those that do not. Some applications (one example is full-text indexers) require a minimum amount of text or (X) HTML to function reliably and predictably. Feed producers should be aware of these issues. It is advisable that each atom:entry element contain a non-empty atom:title element, a non-empty atom:content element when that element is present, and a non-empty atom:summary element when the entry contains no atom:content element. However, the absence of atom:summary is not an error, and Atom Processors MUST NOT fail to function correctly as a consequence of such an absence. ig
