Re: The future of meta-indices/libraries?

Dave_Raggett <dsr@hplb.hpl.hp.com>
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Date: Wed, 16 Mar 1994 10:56:11 --100
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From: Dave_Raggett <dsr@hplb.hpl.hp.com>
To: Multiple recipients of list <www-talk@www0.cern.ch>
Subject: Re: The future of meta-indices/libraries?
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Christian Neuss writes:

> The title comes to mind.. but something with a bit more meaning
> would be better. Well, how about using the group statement to mark
> up special semantics of HTML text? You could have

>   <GROUP role="keywords">
>   <H2> Keywords: </H2>
>   compression, encryption
>   </GROUP>

> in the header, or at multiple positions in the text:

Before you start inventing new elements, consider the HTML+ META
element. This was added as a general solution to adding meta
information to HTML documents. This scheme allows wobots to scan
this information efficiently using the HTTP HEAD method.

    <!--
     Servers should read the document head to generate HTTP headers
     corresponding to META elements, e.g. if the document contains:

        <meta name="Expires" value="Tue, 04 Dec 1993 21:29:02 GMT">

     The server should include the HTTP date format header field:

        Expires: Tue, 04 Dec 1993 21:29:02 GMT

     Other likely names are "Keywords", "Created", "Owner" (a name)
     and "Reply-To" (an email address)
    -->
    <!ELEMENT META - O EMPTY>
    <!ATTLIST META
        id      ID      #IMPLIED -- to allow meta info  --
        name    CDATA   #IMPLIED -- HTTP header e.g. "Expires" --
        value   CDATA   #IMPLIED -- associated value -->