[uf-discuss] rev'ing rel-directory

[Brian Suda]

The whole rel/rev is a facinating concept. A while ago i had a few
discussions with the guys setting-up http://folksr.de/ they are
working on a distributed voting system[1]. They are using
rev="vote-for", so people would add a vote-link to a page they
specificed, then as they got referrers they would crawl the pages and
get vote-value from the rev. In this case REV is correct, "This pages"
is a "vote-for" that "other page", but what they also wanted to do was
collect a list of everyone who voted for a given page and display it
on that page (sort of trackbacks). Now in that case REL would be
correct. "That page" is a "vote-for" "this page", so depending on your
vantage point, it is REL or REV.

The rel-directory would work in a very similar fashion. Rel to get
into the dir, but the dir is rev'd back to you.

-brian

[1] - http://www.artweb-design.de/articles/tag/microformats

On 7/30/06, Chris Messina <chris.messina at gmail.com> wrote:
> For this transclusion stuff, there are two promising projects that I
> think we should all look at...
>
> First is PopupPoliticians, which uses the rel-tag to pull up remote
> information about politicians:
>
> http://sunlightlabs.com/popuppoliticians/
>
> The second is a new and very excellent WordPress plugin that captures
> onclick events to dynamically repopulate divs on a page:
>
> http://www.giannim.com/blog/index.php?page_id=13
>
> These two things show the promise of getting remote content into a
> page... either from the current domain or a remote one.
>
> Being able to do something similar with group membership (i.e. I link
> to someone else from a Group page and use something like
> rev="directory" or rev="member" to identify that relationship and then
> to pull in remote info about that member).
>
> Anyway -- the rev stuff is certainly interesting... real
> implementations would be pretty cool to see!
>
> Chris
>
>
> On 7/30/06, Danny Ayers <danny.ayers at gmail.com> wrote:
> > I'm afraid I've missed discussions around rel-directory [1], but was
> > prompted to take a look after stumbling over an OPML distributed
> > directories tutorial [2], wondering how best to do this using
> > microformats.
> >
> > OPML uses an attribute called "inclusion" to say that a remote
> > hierarchical dir is a sub dir of the local element. It's a neat idea,
> > essentially Gopher on top of HTTP+XML. But given the linking
> > capablitities of HTML, the OPML is redundant, as long as there is a
> > way of expressing "inclusion".
> >
> > rel-directory would appear to be in the frame for an alternative based
> > on existing standards, only it's directed the opposite way :
> >
> > rel="directory"
> >    indicates that the referenced resource is a directory which does or
> > should contain the current page
> >
> > But HTML to the rescue, how about:
> >
> > rev="directory"
> >    indicates that the current element is a directory element which
> > contains the referenced resource
> >
> > Does that make sense?
> >
> > The most obvious application of this would be in XOXO documents, along
> > the lines of the distributed dir idea.
> >
> > A potentially cool demo application might be to transclude [3] any
> > remote page, stripped down to hierarchy+ labelled links. If this was
> > done to one level of transclusion, and the links in the remote page
> > rewritten to something like
> > http://mydir.org/tree?remote=http://thatpage.com/stuff so they could
> > be fed through the tree-browser, the demo could reveal the current web
> > as a "World Outline". Anyone got a bit of Ajax time on their hands?
> >
> > Cheers,
> > Danny.
> >
> > [1] http://microformats.org/wiki/rel-directory
> > [2] http://hosting.opml.org/amyloo/osite/help/howtos/distdir.htm
> > [3] http://en.wikipedia.org/wiki/Transclusion
> >
> >
> > --
> >
> > http://dannyayers.com
> > _______________________________________________
> > microformats-discuss mailing list
> > microformats-discuss at microformats.org
> > http://microformats.org/mailman/listinfo/microformats-discuss
> >
>
>
> --
> Chris Messina
> Agent Provocateur, Citizen Agency &
>   Open Source Ambassador-at-Large
> Work: http://citizenagency.com
> Blog: http://factoryjoe.com/blog
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> Skype: factoryjoe
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-- 
brian suda
http://suda.co.uk