[Gllug] Perl Question - Spam Filter for NMS Form Mail

[Joel Bernstein]

2009/2/9 Lesley Binks <lesleyb at pgcroft.net>:
> On Sun, Feb 08, 2009 at 08:11:11PM -0000, James Laver wrote:
>> On Sun, February 8, 2009 1:15 am, Henry Gilbert wrote:
>> > 2009/2/7 Lesley Binks <lesleyb at pgcroft.net>:
>> >> You'd get more mileage out of this if you wrote your own contact form
>> >> and you could then add a recaptcha.net anti-spam offering.
>> >>
>> >> You only need two or three text fields, a text area and a submit button
>> >> plus the recaptcha.net javascript
>>
>> The wonderful thing about relying on javascript is that you get people who
>> actually give a damn about accessibility on your back. You do want to
>> alienate blind people who have to use screen readers, don't you? This is
>> aside from the fact that in the UK this is covered under the DDA and
>> similar laws in other countries. The RNIB recommend WCAG-AA compliance.
>> Don't let this stop you however, I'm sure blind people everywhere wouldn't
>> want to put you out and demand you write 8 lines of perl.
>>
>
>
> From http://www.mcu.org.uk/articles/accessguidelines.html
>
> "From the W3C guidelines:
>
>    Text can be readily output to speech synthesizers and braille
>    displays, and can be presented visually (in a variety of sizes) on
>    computer displays and paper. Synthesized speech is critical for
>    individuals who are blind and for many people with the reading
>    difficulties that often accompany cognitive disabilities, learning
>    disabilities, and deafness. Braille is essential for individuals who
>    are both deaf and blind, as well as many individuals whose only
>    sensory disability is blindness. Text displayed visually benefits
>    users who are deaf as well as the majority of Web users.
> "
>
> While I'm at a loss as to how to provide a braille output of a web page,
> let alone ensure that it reproduces either correctly or sufficiently well
> in that media and I will admit that I don't use a speech synthesizer to
> view the web, the recaptcha offering does have audio output.

The recaptcha requires JavaScript.
What will you offer to your screen-reader using blind who don't use
JavaScript-capable browsers?

Incidentally Braille will be produced locally by the reader's
hardware. All you need to do is ensure that your website is navigable
without requiring JavaScript etc. As for *why* screenreaders typically
don't render JS, I suspect a large part of the problem is
communicating asychronous changes to a page to a user who can't see
that page and is only aware of its text as read/brailled.

/joel
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