[wp-hackers] WP issues

Geoffrey Sneddon foolistbar at googlemail.com
Wed Jun 6 16:53:29 GMT 2007

On 6 Jun 2007, at 17:26, Charles wrote:

>>> View source for http://wiltgen.net/empty.html to see the empty
>>> tag, solidus and all.
>> <p></p> is valid. I never said otherwise.
> No, you said, "HTML disallows the solidus on empty tags."  You see the
> solidus there, right?   :^P

Neither SGML or XML call <p></p> an empty tag Learn the difference  
between a tag and an element. <p></p> is a start tag followed by a  
close tag. It is not a tag.

>>> HTML is not SGML.
>> HTML is. I've explicitly cited the spec yet you refuse to accept
>> what the spec says? What's unclear about "HTML 4 is an SGML
>> application conforming to International Standard ISO 8879 --
>> Standard Generalized Markup Language [ISO8879]."?
> SGML is a system for defining markup languages.  HTML is a markup  
> language
> that uses some SGML constructs.  While HTML bears a close  
> resemblance to an
> SGML application, it is a separate language with its own parsing  
> rules.

According to HTML 4.01, it is an SGML application. HTML 4.01, though  
irrelevant in the real world, is the current HTML recommendation.

>   If
> HTML parsers treated HTML as an SGML application, the web would  
> break.  Note
> that HTML 5 proposals stop even pretending that HTML is an SGML  
> application.

"proposals"? Which others (apart from the WHATWG/W3C HTML WG one) are  
you referring to? HTML5 still disallows non-empty elements to close  
themselves (like <p/>). It allows empty elements to have a solidus  
present, though that was only after many complained for the sole  
reason of its appearance.

- Geoffrey Sneddon

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