W3C home > Mailing lists > Public > www-html@w3.org > March 2005

Re: why, e.g., input/@checked="checked" ?

From: David Dorward <david@dorward.me.uk>
Date: Sat, 26 Mar 2005 15:25:37 +0000
To: Robert Koberg <rob@koberg.com>
Cc: www-html@w3.org
Message-ID: <20050326152537.GB14917@us-lot.org>

On Sat, Mar 26, 2005 at 07:19:15AM -0800, Robert Koberg wrote:
> >  <input ... true>

> It is probably a lack of understanding in SGML, but I don't understand 
> why you use true there and not checked.

To demonstrate why having true/false as values for the checked
attribute would be a bad idea. It isn't a valid code example.
 
> Anyway, next I'll ask why is the following invalid?
> 
> <input ... checked="">

The _only_ value allowed for the attribute is 'checked'. A null string
is not 'checked' and so isn't allowed. If the attribute is present
then it must have the value 'checked'.

-- 
David Dorward                                      http://dorward.me.uk
Received on Saturday, 26 March 2005 15:25:38 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 27 March 2012 18:16:02 GMT