Re: ALT attribute & Conformance levels

Pei Y. Wei (wei@sting.berkeley.edu)
Fri, 15 Oct 93 22:02:10 -0700

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