W3C home > Mailing lists > Public > ietf-http-wg-old@w3.org > January to April 1995

Re: charset Reality Check

From: Roy T. Fielding <fielding@avron.ICS.UCI.EDU>
Date: Wed, 11 Jan 1995 02:13:50 -0800
To: Larry Masinter <masinter@parc.xerox.com>
Cc: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
Message-Id: <9501110213.aa20722@paris.ics.uci.edu>
>>   BTW, Accept-parameter is not useful; charset is the only parameter
>>   shared by multiple media types.  We could invent some new parameters,
>>   but that only makes the problem worse.  Also, a quality attribute is
>>   only useful if we add it to the content-negotiation algorithm --
>>   something I would like to avoid (like the plague that it has become).
> 
> I think the image/* types might share information about color & size,
> just as the text/* types would share information about character sets.

Is such a definition available for image/*?  Personally, I'd rather avoid
the whole issue, because the next thing someone is going to ask for is:

    Accept-font: YIKES

Pre-emptive content negotiation just doesn't work.  Perhaps we should try
to define a matrix of common client characteristics/behavior, and just
provide a header for that.  E.g. one of

    Agent-profile: graphic, color=24, xwin
    Agent-profile: graphic, grey=8, mwin, unicode
    Agent-profile: graphic, bw, xwin
    Agent-profile: text
    Agent-profile: braille

or maybe not.  I don't see any good way to go about it.


......Roy Fielding   ICS Grad Student, University of California, Irvine  USA
                                     <fielding@ics.uci.edu>
                     <URL:http://www.ics.uci.edu/dir/grad/Software/fielding>
Received on Wednesday, 11 January 1995 02:21:47 EST

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