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Re: RDF Abstract Syntax: a strawman

From: <jos.deroo.jd@belgium.agfa.com>
Date: Mon, 28 May 2001 16:06:54 +0100
Message-Id: <200105281407.KAA11861@tux.w3.org>
To: drew.mcdermott@yale.edu
Cc: www-rdf-logic@w3.org

> The DeRoo approach is to use quotation to
> hide nonstandard extensions of RDF.  That is, an RDF processor that
> isn't in on the trick will see an uninterpreted string and leave it
> alone;

this is not MY approach, but the RDF 1.0 approach
    The parseType attribute changes the interpretation of the
    element content. The parseType attribute should have one of
    the values 'Literal' or 'Resource'. The value is case-sensitive.
    The value 'Literal' specifies that the element content is to
    be treated as an RDF/XML literal; that is, the content must
    not be interpreted by an RDF processor. The value 'Resource'
    specifies that the element content must be treated as if it
    were the content of a Description element. Other values of
    parseType are reserved for future specification by RDF.
    With RDF 1.0 other values must be treated as identical to
    'Literal'. In all cases, the content of an element having
    a parseType attribute must be well-formed XML. The content
    of an element having a parseType="Resource" attribute must
    further match the production for the content of a Description
  ]] -- http://www.w3.org/TR/REC-rdf-syntax/#grammar

> while a processor that knows what "log:implies" means will
> de-quote the string and interpret it as if it had never been quoted at
> all.

  ^^^while a parser that has rdf:parseType="log:quote" capability
treats the content as something like (truth-predicate quoted-thing)

> Ten years from now it will be very hard to explain to novices why
> the quotes are where they are.

no comment

Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
Received on Monday, 28 May 2001 10:07:36 UTC

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