Mark Fletcher wrote:
There are no guarantees about how your data will be displayed.
Different
aggregators do different things. Bloglines, for example, displays
items
in date order, and allows the user to decide whether to show newest
first or oldest first. When we detect a change in an item, we update
the
date on that item to when we received the change. One of the ideas of
aggregation is to let the user control how they view the content.
Quite.
The best you can do, which probably equates to best practices, is be as
specific, descriptive and accurate as possible. At this point in time
that probably means using RSS 1.0 along with extensions as needed.
There
is no guarantee that all end users will support these, but some will,
and it at least offers the /potential/ for richer feeds with more
useful
information.
Regarding the order, the formats have different interpretations - RSS
1.0 does provide an explicit order (but doesn't really say what the
significance of it is) and if I remember correctly the RSS 2.0 spec
says
absolutely nothing about order. So it's hardly surprising that
different
implementations work differently.
The Atom project should get this sorted out more usefully (it's already
been discussed at length) but it will be a few months at least before
that will be ready for widespread adoption.
Cheers,
Danny.
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http://dannyayers.com
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