Re: [Uri-review] Proposal for a 'fallback' URI scheme

[Kristof Zelechovski <giecrilj at stegny.2a.pl>]

An URI should not contain several other assorted URI.  URI are meant to be
readable, as far as it is possible.
As you have shown, it would be straightforward to use an attribute of type
URI set instead.  
I consider it a feature that markup languages are verbose.  The more concise
the language, the harder it is to achieve interop.  If you find it to be an
obstacle, you can just use a suitable code generator.
Chris

-----Original Message-----
From: uri-review-bounces at ietf.org [mailto:uri-review-bounces at ietf.org] On
Behalf Of Giuseppe Bilotta
Sent: Saturday, August 15, 2009 9:21 PM
To: uri-review at ietf.org
Subject: [Uri-review] Proposal for a 'fallback' URI scheme

Hello all,

The need for such a fallback mechanism is also shown for example by
the introduction in CSS3 content module draft of the syntax "content:
url(someurl), url(someotherurl)" which is however CSS3-specific.
Having something similar at a more generic level would allow the
fallback mechanism to be used e.g. in HTML 'img' tags (or in the
'video' and 'audio' tag of the upcoming HTML5 specification).