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<!-- Creator : groff version 1.18.1 -->
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<title>Raptor RDF Parser Toolkit - Raptor RDF parser utility</title>
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<h1>Raptor RDF Parser Toolkit - Raptor RDF parser utility</h1>
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<a name="NAME"></a>
<h2>NAME</h2>
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<p>rapper − Raptor RDF parser and serializer utility</p>
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<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
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<p><b>rapper</b> [<b>OPTIONS</b>] <i><source-URI> [base-URI]</i></p>
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<a name="EXAMPLE"></a>
<h2>EXAMPLE</h2>
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<pre>
<b>rapper -o ntriples http://planetrdf.com/guide/rss.rdf
rapper -i rss-tag-soup -o rss-1.0 pile-of-rss.xml http://example.org/base/
rapper --count http://example.org/index.rdf
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<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
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<p>The <b>rapper</b> utility allows parsing of RDF content by the <b>Raptor</b> RDF parser toolkit emitting the results as RDF triples in a choice of syntaxes. The <i>source-URI</i> can be a file name or if Raptor is built with a WWW retrieval library, a general URI. The optional <i>base-URI</i> is used as the document URI if present.</p>
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<a name="OPTIONS"></a>
<h2>OPTIONS</h2>
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<p>rapper uses the usual GNU command line syntax, with long options starting with two dashes (‘-’) if supported by the getopt_long function. Otherwise the short options are only available.</p>
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<p><b>−h, −−help</b></p>
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<p>Show a summary of the options.</p>
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<p><b>−i, −−input FORMAT</b></p>
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<p>Set the input <i>FORMAT</i> to one of ’rdfxml’ (RDF/XML, default), ’ntriples’ (N-Triples, see below), ’turtle’ (Turtle, see below) or ’rss-tag-soup’ (RSS Tag Soup). The RSS Tag Soup parser can turn the many XML RSS formats and Atom 0.3 into RDF triples.</p>
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<p>The list of parsers depends on how libraptor(3) was built. The list of supported parsers is given in the help summary given by −h.</p>
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<p><b>−o, −−output FORMAT</b></p>
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<p>Set the output <i>FORMAT</i> to ’ntriples’ (N-Triples, default), ’rdfxml’ (RDF/XML), ’rdfxml-abbrev’ (RDF/XML with abbreviations) or ’rss-1.0’ (RSS 1.0, also an RDF/XML syntax).</p>
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<p>The list of serializers depends on how libraptor(3) was built. The list of supported serializers is given in the help summary given by −h.</p>
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<p><b>−c, −−count</b></p>
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<p>Only count the triples and produce no other output.</p>
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<p><b>−e, −−ignore-errors</b></p>
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<p>Ignore errors, do not emit the messages and try to continue parsing.</p>
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<p><b>−f, −−feature FEATURE[=VALUE]</b></p>
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<p>Set a parser or serializer feature <i>FEATURE</i> to a value, or to 1 if <i>VALUE</i> is omitted, Use −f help to get lists of valid parser and serializer features.</p>
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<p>If the form −f ’xmlns:<i>prefix</i>="<i>uri</i>"’ is used, the prefix and namespace uri given will be set for serializing. The syntax matches XML in that either or both of <i>prefix</i> or <i>uri</i> can be omitted.</p>
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<p><b>−g, −−guess</b></p>
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<p>Guess the parser to use from the source-URI rather than use the −i FORMAT.</p>
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<p><b>−q, −−quiet</b></p>
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<p>No extra information messages.</p>
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<p><b>−r, −−replace-newlines</b></p>
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<p>Replace newlines in multi-line literals with spaces.</p>
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<p><b>−s, −−scan</b></p>
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<p>Scan for <rdf:RDF> element in the RDF/XML source content.</p>
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<p><b>−−show-namespaces</b></p>
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<p>Print namespaces as they are seen in the input.</p>
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<p><b>−w, −−ignore-warnings</b></p>
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<p>Ignore warnings, do not emit the messages.</p>
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<p><b>−v, −−version</b></p>
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<p>Print the raptor version and exit.</p>
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<a name="EXAMPLES"></a>
<h2>EXAMPLES</h2>
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<p><b>rapper -q -i ntriples -o rdfxml -f ’xmlns:rss="http://purl.org/rss/1.0/"’ -f ’xmlns:ex="http://example.org/"’ tests/test.nt<br />
rapper -q -o rdfxml -f ’xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"’ tests/rdf-schema.rdf ’http://www.w3.org/2000/01/rdf-schema#’</b></p>
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<a name="CONFORMING_TO"></a>
<h2>CONFORMING TO</h2>
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<p><i>RDF/XML Syntax (Revised)</i>, W3C Recommendation, http://www.w3.org/TR/rdf-syntax-grammar/</p>
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<p><i>N-Triples</i>, in <i>RDF Test Cases</i>, Jan Grant and Dave Beckett (eds.) W3C Recommendation, http://www.w3.org/TR/rdf-testcases/#ntriples</p>
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<p><i>Turtle Terse RDF Triple Language</i>, Dave Beckett, http://www.dajobe.org/2004/01/turtle/</p>
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<p><i>RDF Site Summary (RSS) 1.0</i>, 2000-12-06 http://purl.org/rss/1.0/spec</p>
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<a name="SEE_ALSO"></a>
<h2>SEE ALSO</h2>
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<p><b>libraptor(3),</b>raptor-config(1)</p>
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<a name="CHANGES"></a>
<h2>CHANGES</h2>
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<p><b>1.4.5</b></p>
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<p>Updated to add serializer rdfxml-abbrev</p>
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<p><b>1.4.3</b></p>
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<p>Updated potential parser and serializers and described -f for defining namespaces.</p>
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<p><b>1.3.0</b></p>
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<p>Added −f for features.<br />
Added −g for guessing the parser to use.</p>
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<p><b>1.1.0</b></p>
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<p>Removed −a, −−assume since rdf:RDF is now always optional.</p>
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<a name="AUTHOR"></a>
<h2>AUTHOR</h2>
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<p><a href="http://purl.org/net/dajobe/">Dave Beckett</a></p>
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<p>Copyright 2002-2006 <a href="http://purl.org/net/dajobe/">Dave Beckett</a><br />2002-2006 <a href="http://www.bristol.ac.uk/">University of Bristol</a></p>
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