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<title>Parser options: Raptor RDF Syntax Library Manual</title>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="tutorial-parser-features"></a>Parser options</h2></div></div></div>
<p>There are several
<span class="emphasis"><em> options</em></span> that can be set on parsers.
The exact list of options can be found at run time via the
<a class="link" href="tutorial-querying-functionality.html" title="Listing built-in functionality">Querying Functionality</a>
or in the API reference for
<a class="link" href="raptor2-section-option.html#raptor-option" title="enum raptor_option"><code class="literal">raptor_option</code></a>.
</p>
<p>Options are integer enumerations of the
<a class="link" href="raptor2-section-option.html#raptor-option" title="enum raptor_option"><span class="type">raptor_option</span></a> enum and have
typed values that are either booleans, integers or strings.
The function that sets options for parsers is
<a class="link" href="raptor2-section-parser.html#raptor-parser-set-option" title="raptor_parser_set_option ()">raptor_parser_set_option()</a>
used as follows:
</p>
<pre class="programlisting">
/* Set a boolean or integer valued option to value 1 */
raptor_parser_set_option(rdf_parser, option, NULL, 1);
/* Set a string valued option to value "abc" */
raptor_parser_set_option(rdf_parser, option, "abc", -1);
</pre>
<p>
</p>
<p>
There is a corresponding function for reading the values of parser
option
<a class="link" href="raptor2-section-parser.html#raptor-parser-get-option" title="raptor_parser_get_option ()"><code class="function">raptor_parser_get_option()</code></a>
which takes the option enumeration parameter and returns the boolean /
integer or string value correspondingly into the appropriate pointer
argument.
</p>
<pre class="programlisting">
/* Get a boolean or integer option value */
int int_var;
raptor_parser_get_option(rdf_parser, option, NULL, &int_var);
/* Get a string option value */
char* string_var;
raptor_parser_get_option(rdf_parser, option, &string_var, NULL);
</pre>
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