Summary support in Plagger 0.8

From my email sent to plagger-dev list:

I've been working on summary support in hackathon-summary branch at http://plagger.org/trac/browser/branches/hackathon-summary

The point of summary feature is:

summary, title, body and author has "is_html" or "is_text" method,
to determine if the data it holds is HTML or plaintext.
Plagger::Util::strip_html($html) will render HTML into text using
HTML::FormatText (Making it pluggable is left TODO)
$entry->summary->text and $entry->body->html does what you mean
summary is automatically extracted from feed metadata ala RSS description or Atom:summary field. If there's not one, Summary::Auto plugin will auto-generate using Plagger::Util::summarize($entry->body)
actually how to generate summary from body HTML is pluggable. There're couple of Summary::* plugins already checked in in the branch. http://plagger.org/trac/browser/branches/hackathon-summary/plagger/lib/Plagger/Plugin/Summary

The final thing left undone is how to declare which field to use in each Notify/Publish plugin without updating the templates. I'd like to say, "send full-content HTML mail to my gmail account, but plaintext of summary to my mobile. Use summary as HTML in Publish::Planet." with
a single config, not requiring to update the templates.

The syntax would be something like:

- module: Publish::Gmail
config:
   mailto: ****@gmail.com
override:
   body: $args->{entry}->body->html

- module: Publish::Gmail
config:
   mailto: ****@mobile.example.com
override:
   body: $args->{entry}->summary->text

- module: Publish::Planet
config:
   mailto: ****@mobile.example.com
override:
   body: $args->{entry}->summary->html

But not sure what would be the best syntax.

I'd like to apply the override/localize methodology to link(s) as well, ala:

- module: Notify::IM
override:
   link: $args->{entry}->alternate_link('tinyurl')

to display link in TinyURLed (using WWW::Shorten), for instance.

Any feedbacks would be welcome on this.