Is your feature request related to a problem? Please describe.

SimplePie takes Mf2's output but disregards most of it. It also sets description based on, e.g., e-content but not, let's say, p-summary, which would be a much better fit for description.

Describe the solution you'd like

1. Improve the algorithm that sets content and description for mf2 feeds.

2. A get_data() method that returns the complete Mf2 data array would also be nice, and is very easy to implement. It'd allow SimplePie clients to do a whole lot more than is possible now (i.e., use the information in the reply-to or bookmark-of or repost-of arrays, most of which, again, is currently disregarded).

Describe alternatives you've considered

Was thinking along the lines of making parse_microformats() protected rather than private, so that software that integrates SimplePie can more easily override it.

Then I found set_parser_class() so I think I might be able to work off that.

Not sure (this would be my first SimplePie project) if this could eventually be spin off into a plugin.