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Re: a question about alt

From: Thomas Broyer <t.broyer@gmail.com>
Date: Thu, 6 Sep 2007 14:47:08 +0200
Message-ID: <a9699fd20709060547r1973cfd8ye3015d48053e64e6@mail.gmail.com>
To: public-html@w3.org

2007/9/6, Steve Faulkner:
> James wrote:
> >Distinguishing the cases alt="" and alt=" " would make it very easy to
> >typo a meaningfully-different value and very hard to spot the mistake.
> >If such an explicit indicator is desirable, using alt="" and noalt seems
> >like a better solution.
> I understand what you are saying. the reason I have suggested this is that a
> new attribute would not be backwards compatible with assistive technology.
> The alt=" " suggestion is treated by the assistive tech i have tested it
> with, the same way as alt="" (the image is ignored with default settings).

I'm not sure I understand (or rather, I'm sure I don't understand),
but wouldn't:
    <img alt=" " ...> (your proposal)
be equivalent to:
    <img alt="" noalt ...>
wrt backwards compatibility?

noalt here meaning "there is no applicable textual alternate" (i.e.
similar to not using the alt attribute at all in the current draft).

Thomas Broyer
Received on Thursday, 6 September 2007 12:47:15 UTC

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