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Peter Hunsberger wrote:
> That question can be rephrased as: do you want to describe the
> relationships in the CSS or do you want to separate the relationship
> discovery from the presentation?
>
> In your example, the relationship is hard coded in the CSS as
>
> link-target: attr(moreinfo);
>
> that's a pretty limited capability and doesn't easily allow for two
> way linking, dynamic linking or many other things that people want to
> do.
And what if it will be possible to use full XPath for specifying CSS
property values (IMHO something what should be there for ages)?
> Don't get hung up on my syntax here. The point is, the concepts of
> presentation and relationship building need to be separated.
Not always, and in many situations you can't separete these two, because
nature and destination of link usually depends on media for which you
are styling document. If you have link from place A to place B in your
XML file and you are then presenting this XML as two output formats
(e.g. PDF and HTML) actual links (destination URI) will be completely
different and depending on output media used.
For example, link <link xlink:href="intro.xml"/> can be converted to <a
href="chap01.html">Introduction</a> for HTML output. For PDF output,
destination URI could be something like manual.pdf#page=3.
One of flaws of XLink + XPointer was assumption that link traversal
would occur on original XML sources. But because of lack of support for
direct XML rendering in applications, you must convert XML to HTML or
PDF if you want to deliver it to users. This means that you must map
original XLinks to links between HTML or PDF files.
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