Re: Unknown or X-extended tags

Terry Allen (terry@ora.com)
Sat, 24 Sep 1994 07:21:43 PDT


Message-Id: <199409241421.HAA14816@rock>
From: Terry Allen <terry@ora.com>
Date: Sat, 24 Sep 1994 07:21:43 PDT
In-Reply-To: "Steven D. Majewski" <sdm7g@virginia.edu>
To: sdm7g@virginia.edu, Multiple recipients of list <www-html@www0.cern.ch>
Subject: Re: Unknown or X-extended tags

What do you want a browser to do when it encounters an attribute
not specified in the DTD, e.g., <CODE LANG=C>?  And what do
you mean by 
  >I would think that it would be desirable to be able to consider
HTML documents as a subset of other SGML markedup text
   ?

Note that the unknown attributes are not eliminated in transmission;
they're there for the client to act upon if it has some instructions
for dealing with them.  If your client had that capacity, you could
use unknown atts to enrich the semantics of the existing HTML
markup (<EM role=vegetable>) for such things as searching, without
impairing the ability of other clients to render the text.

Regards,

-- 
Terry Allen  (terry@ora.com)   Editor, Digital Media Group
O'Reilly & Associates, Inc.    Sebastopol, Calif., 95472