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Real World XML by Steven Holzner

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Using the Alt Container

The Alt container provides alternatives, such as different language versions of a resource or mirror sites. Here's an example: In this case, I'm listing various versions of a document in different formats, plain text, HTML, Rich Text Format (RTF), and XML:

Listing . ch18_13.rdf
 
<?xml version="1.0" ?>
<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:dc="http://www.purl.org/DC#">

    <rdf:Description about="http://www.starpowder.com/planets">
        <dc:Title>Planets</dc:Title>
        <dc:Creator>Nicolas Copernicus</dc:Creator>
        <dc:Format>
					<rdf:Alt>
					<rdf:li resource =
					"http://www.starpowder.com/planets.html">
					text/html
					</rdf:li>
					<rdf:li resource =
					"http://www.starpowder.com/planets.txt">
					text/plain
					</rdf:li>
					<rdf:li ...

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