Re: ALT attribute & Conformance levels

wei@sting.berkeley.edu (Pei Y. Wei)
Date: Fri, 15 Oct 93 22:02:10 -0700
From: wei@sting.berkeley.edu (Pei Y. Wei)
Message-id: <9310160502.AA18380@sting.Berkeley.EDU>
To: dale@ora.com, www-talk@nxoc01.cern.ch
Subject: Re:  ALT attribute & Conformance levels
Before we label "levels" to various browsers, I think it'd help if we,
the Web community, collect and maintain some basic information about
different browsers. 

Up to a point, I think labeling browser conformance levels is roughly 
like viewing evolution as a ladder, rather than a branching tree. 
Sure, most browsers now share lots of common functionality, but there's
going to be specializations. 

But I agree that some basic set/group/level designation is very useful.

So, how about we flesh out a "WWW Browsers Capabilities Tabulation" chart,
then group the capabilites into some conformance designations. Such info
is useful in anycase-- as you can see below, I'm no longer sure of what's
in what browser.

			Keys:
			a = available for use.
			e = experimental status. in development but unstable.
			i = incomplete implementation.
			u = unavailable to public (yet), but exists.

			Cello
			|   Emacs
			|   |	Erwise
			|   |	|   LineMode
		        |   |   |   |   Lynx
		        |   |   |   |   |   MidasWWW
		        |   |   |   |   |   |   Mosaic-Mac
		        |   |   |   |   |   |   |   Mosaic-Win
                        |   |   |   |   |   |   |   |   Mosaic-X
		        |   |   |   |   |   |   |   |   |   TkWWW
	                |   |   |   |   |   |   |   |   |   |   ViolaWWW
		        |   |   |   |   |   |   |   |   |   |   |

Pre-DTD HTML		a   a   a   a   a   a   a   a   a   a   a

HTTP/0.9		a   a   a   a   a   a   a   a   a   a   a
HTTP/1.0		                        a?  a?  a?

mailto:						a?  a?  a?      u

HTML  <PRE>             a   a   a   a   a   a   a   a   a   a   u

      <IMG>		                    a   a   a   a       u

      <ISMAP>                               a   a   a   a       u

HTML+ <FIGURE>							ui

HTML+ input str	                                        a       u
            int	                                        a       u
            check	                                a       u
            radio	                                a       u

HTML+ tables		                                        u

Stylesheets		                                        uie


-Pei