Hi,

In <D0A4C1A2-CB15-11D8-B645-000A95676A62 / pragprog.com>
  "Problem in RSS library, or problem in my blog :)" on Thu, 1 Jul 2004 13:19:20 +0900,
  Dave Thomas <dave / pragprog.com> wrote:
> I've been trying to use the new RSS library to parse a number of 
> popular blogs. So far, many of them cannot be read, as they fail 
> validation. I've tried ones with RDF 0.91, RSS 1, and RSS 2. (Having 
> said that, Ruby-lang/en/index.rss _does_ parse successfully.)

RSS Parser only supports validation for RSS 1.0. Other
versions of RSS aren't supported because of RSS Parser's
validator can't handle interleave pattern (and I don't like
them.) So validation for RSS 1.0 only supports standard
order RSS. (But RSS 1.0 specification says element order is
not important.)

I'm looking forward to complete RELAX NG validator. :)

--
kou