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Re: [whatwg] alt="" and the <meta name=generator> exception

From: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
Date: Wed, 25 Jul 2012 19:20:04 +0300
To: Edward O'Connor <eoconnor@apple.com>
Message-ID: <20120725192004195285.6a486074@xn--mlform-iua.no>
Cc: whatwg@lists.whatwg.org
Edward O'Connor on Tue, 24 Jul 2012 10:37:20 -0700
> We could address this problem by making changes along these lines:
> 1. Drop the <meta name=generator> alt="" exception.
> 2. Mint a global boolean attribute that, when present, indicates that
>    the element and its descendants are outside of the page author's
>    control (at least insofar as author conformance criteria are
>    concerned).

How about simply introducing a @generator attribute:

     <img generator='foo' alt='' src=bar.jpg />

> 3. Add a new exception to the "Guidance for conformance checkers"
>    section which prevents conformance checkers from emitting errors for
>    missing alt="" in subtrees marked with the new attribute.

Instead of a validator exception, how about simply let the validator 
split the validation results in several parts based upon who the author 
is? Here is an example report which identifies two document 

* Main author report:
  No alt errors detected.
* Report for generator 'foo': 
  10 valid images but which the main author has not verified yet.
Here I assume that that verification flag is the *lack* of the 
generator attribute. I.e. when the main author somehow blesses the @alt 
text, then the generator is removed.

> Some issues that come to mind:
> 1. What other author conformance criteria should conformance checkers
>    relax in such subtrees?
> 2. Authors might start including such an attribute on the <html> element
>    just to get some kind of "valid html5" badge without actually
>    improving their pages.

This is easier to avoid if the validator identifies responsibility - 
see above.

> 3. What's a good name for such an attribute?

@generator.  :-D
Leif H Silli
Received on Wednesday, 25 July 2012 16:21:18 UTC

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