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<a name="tutorial-parser-example"></a>Parsing example code</h2></div></div></div>
<div class="example">
<a name="raptor-example-rdfprint"></a><p class="title"><b>Example 2. <code class="filename">rdfprint.c</code>: Parse an RDF/XML file and print the triples</b></p>
<div class="example-contents">
<pre class="programlisting">
#include <stdio.h>
#include <raptor.h>
/* rdfprint.c: print triples from parsing RDF/XML */
void
print_triple(void* user_data, const raptor_statement* triple)
{
raptor_print_statement_as_ntriples(triple, stdout);
fputc('\n', stdout);
}
int
main(int argc, char *argv[])
{
raptor_parser* rdf_parser=NULL;
unsigned char *uri_string;
raptor_uri *uri, *base_uri;
raptor_init();
rdf_parser=raptor_new_parser("rdfxml");
raptor_set_statement_handler(rdf_parser, NULL, print_triple);
uri_string=raptor_uri_filename_to_uri_string(argv[1]);
uri=raptor_new_uri(uri_string);
base_uri=raptor_uri_copy(uri);
raptor_parse_file(rdf_parser, uri, base_uri);
raptor_free_parser(rdf_parser);
raptor_free_uri(base_uri);
raptor_free_uri(uri);
raptor_free_memory(uri_string);
raptor_finish();
}
</pre>
<p>Compile it like this:
</p>
<pre class="screen">
$ gcc -o rdfprint rdfprint.c `raptor-config --cflags` `raptor-config --libs`
</pre>
<p>
and run it on an RDF file as:
</p>
<pre class="screen">
$ ./rdfprint raptor.rdf
_:genid1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://usefulinc.com/ns/doap#Project> .
_:genid1 <http://usefulinc.com/ns/doap#name> "Raptor" .
_:genid1 <http://usefulinc.com/ns/doap#homepage> <http://librdf.org/raptor/> .
...
</pre>
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