home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.mail.multi-media:366 comp.infosystems.gopher:1180 comp.infosystems.wais:638
- Newsgroups: comp.mail.multi-media,comp.infosystems.gopher,comp.infosystems.wais
- Path: sparky!uunet!ukma!netsys!pagesat!spssig.spss.com!news.oc.com!convex!connolly
- From: connolly@convex.com (Dan Connolly)
- Subject: Re: MIME and WWW?
- Sender: usenet@news.eng.convex.com (news access account)
- Message-ID: <1992Nov17.013751.15775@news.eng.convex.com>
- Date: Tue, 17 Nov 1992 01:37:51 GMT
- References: <1992Nov15.075116.22534@cas.org>
- Nntp-Posting-Host: pixel.convex.com
- Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
- X-Disclaimer: This message was written by a user at CONVEX Computer
- Corp. The opinions expressed are those of the user and
- not necessarily those of CONVEX.
- Lines: 66
-
- In article <1992Nov15.075116.22534@cas.org> lvirden@cas.org (Larry W. Virden) writes:
- >
- >Anyone aware of any work being done to allow WWW (well, Viola in particular)
- >aware of the MIME format info? Right now Viola is a hypertext presentation
- >format which can wander thru the internet zones presenting text, graphics, etc.
- >Gopher, WAIS, NNTP seem to be being investigated or integrated - just curious
- >about MIME. Now if there were only a Unix based HGML editor...
-
- Just to clarify: WWW, the World Wide Web, is a global hypertext project
- that defines a hypertext data format (HTML, the HyperText Markup
- Language), an addressing scheme that makes FTP, WAIS, gopher, NNTP, and HTTP
- (their own protocol) objects addressable, and provides some client and
- server software.
-
- Viola is a multimedia authoring environment ala HyperCard. Pei Wei implemented
- a WWW client (browser) using Viola. I hear it's nifty.
-
- The Gopher, WWW, and WAIS systems interoperate to some extent: you can
- send plain text files between them pretty easily. So we have the
- beginning of a global hypertext system.
-
- There are various pilot projects to incorporate multimedia into these
- projects: several WAIS and Gopher servers offer GIF images and the like.
-
- But these pilot projects usually consist of a specially modified client
- and server for each data type. For example, you can grab a special
- Gopher server configured to handle PICT files on a Mac, and if you
- have the associated special client, they can communicate.
-
- I think some folks have done the same thing for WAIS. But you can't
- point the pict-capable gopher client at the pict-capable WAIS server
- and expect good results.
-
- I have suggested to all of these groups that they use MIME as a substrate
- to bring the level of interoperability from plain text to multimedia,
- in order to turn this global hypertext system into a global
- hypermedia system.
-
- The WAIS project seems willing to obsolete its type system ("TEXT"
- "GIF" etc.) in favor of the MIME type system ("text/plain" "image/gif"
- etc.). If the gopher and WWW projects do the same, we will
- be on our way...
-
- By the way: there is a lot of damage that can be done by talking
- about "MIME format" carelessly. Lots of folks will think that
- gif images have to be encoded, and they have to add special headers
- and stuff to translate their data to "MIME format." Those restrictions
- only apply to the message/rfc-822 content type.
-
- The MIME typing system is completely orthogonal to the transport
- issues of RFC-822 mail messages.
-
- For example, on an appropriately configured system, you could
- invoke:
-
- % metamail -b -c "image/gif" corvette.gif
-
- or
-
- % metamail -b -c "application/postscript" rfc-822.ps
-
- where corvette.gif is a normal GIF file, and rfc-822.ps
- is a normal postscript file, and the files would be
- displayed by the appropriate utilities.
-
- Dan
-