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<h2><span class="refentrytitle"><a name="raptor2-section-xml-namespace.top_of_page"></a>XML Namespaces</span></h2>
<p>XML Namespaces — Namespaces in XML include stacks of Namespaces</p>
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<div class="refsynopsisdiv">
<a name="raptor2-section-xml-namespace.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">typedef <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace">raptor_namespace</a>;
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-new-namespace-from-uri" title="raptor_new_namespace_from_uri ()">raptor_new_namespace_from_uri</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-uri.html#raptor-uri" title="raptor_uri"><span class="type">raptor_uri</span></a> *ns_uri</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="returnvalue">raptor_namespace_stack</span></a> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-new-namespaces" title="raptor_new_namespaces ()">raptor_new_namespaces</a> (<em class="parameter"><code><a class="link" href="raptor2-section-world.html#raptor-world" title="raptor_world"><span class="type">raptor_world</span></a> *world</code></em>,
<em class="parameter"><code><span class="type">int</span> defaults</code></em>);
<span class="returnvalue">int</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-init" title="raptor_namespaces_init ()">raptor_namespaces_init</a> (<em class="parameter"><code><a class="link" href="raptor2-section-world.html#raptor-world" title="raptor_world"><span class="type">raptor_world</span></a> *world</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><span class="type">int</span> defaults</code></em>);
<span class="returnvalue">void</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-clear" title="raptor_namespaces_clear ()">raptor_namespaces_clear</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>);
<span class="returnvalue">void</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-free-namespaces" title="raptor_free_namespaces ()">raptor_free_namespaces</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>);
<span class="returnvalue">void</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-start-namespace" title="raptor_namespaces_start_namespace ()">raptor_namespaces_start_namespace</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *nspace</code></em>);
<span class="returnvalue">int</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-start-namespace-full" title="raptor_namespaces_start_namespace_full ()">raptor_namespaces_start_namespace_full</a>
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *ns_uri_string</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);
<span class="returnvalue">void</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-end-for-depth" title="raptor_namespaces_end_for_depth ()">raptor_namespaces_end_for_depth</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-get-default-namespace" title="raptor_namespaces_get_default_namespace ()">raptor_namespaces_get_default_namespace</a>
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>);
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-find-namespace" title="raptor_namespaces_find_namespace ()">raptor_namespaces_find_namespace</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code><span class="type">int</span> prefix_length</code></em>);
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-find-namespace-by-uri" title="raptor_namespaces_find_namespace_by_uri ()">raptor_namespaces_find_namespace_by_uri</a>
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-uri.html#raptor-uri" title="raptor_uri"><span class="type">raptor_uri</span></a> *ns_uri</code></em>);
<span class="returnvalue">int</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-namespace-in-scope" title="raptor_namespaces_namespace_in_scope ()">raptor_namespaces_namespace_in_scope</a>
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *nspace</code></em>);
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-new-namespace" title="raptor_new_namespace ()">raptor_new_namespace</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *ns_uri_string</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);
<span class="returnvalue">void</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-free-namespace" title="raptor_free_namespace ()">raptor_free_namespace</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>);
<a class="link" href="raptor2-section-uri.html#raptor-uri" title="raptor_uri"><span class="returnvalue">raptor_uri</span></a> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-get-uri" title="raptor_namespace_get_uri ()">raptor_namespace_get_uri</a> (<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>);
const unsigned <span class="returnvalue">char</span> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-get-prefix" title="raptor_namespace_get_prefix ()">raptor_namespace_get_prefix</a> (<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>);
const unsigned <span class="returnvalue">char</span> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-get-counted-prefix" title="raptor_namespace_get_counted_prefix ()">raptor_namespace_get_counted_prefix</a>
(<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);
<span class="returnvalue">int</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-write" title="raptor_namespace_write ()">raptor_namespace_write</a> (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-iostream.html#raptor-iostream" title="raptor_iostream"><span class="type">raptor_iostream</span></a> *iostr</code></em>);
typedef <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack">raptor_namespace_stack</a>;
<span class="returnvalue">int</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack-start-namespace" title="raptor_namespace_stack_start_namespace ()">raptor_namespace_stack_start_namespace</a>
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><span class="type">int</span> new_depth</code></em>);
unsigned <span class="returnvalue">char</span> * <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-format-as-xml" title="raptor_namespace_format_as_xml ()">raptor_namespace_format_as_xml</a> (<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);
<span class="returnvalue">int</span> <a class="link" href="raptor2-section-xml-namespace.html#raptor-xml-namespace-string-parse" title="raptor_xml_namespace_string_parse ()">raptor_xml_namespace_string_parse</a> (<em class="parameter"><code>const unsigned <span class="type">char</span> *string</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> **prefix</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> **uri_string</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="raptor2-section-xml-namespace.description"></a><h2>Description</h2>
<p>
Two classes that provide an XML namespace - short prefix (or none) and
absolute URI (or none) to match the form <code class="literal">xmlns...="..."</code>
seen in XML. A stack of namespaces <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> is also
provided to handle in-scope namespace calculations that happen inside
XML documents where inner namespaces can override outer ones.
</p>
</div>
<div class="refsect1">
<a name="raptor2-section-xml-namespace.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="raptor-namespace"></a><h3>raptor_namespace</h3>
<pre class="programlisting">raptor_namespace* raptor_namespace;
</pre>
<p>
Raptor XML Namespace class
</p>
</div>
<hr>
<div class="refsect2">
<a name="raptor-new-namespace-from-uri"></a><h3>raptor_new_namespace_from_uri ()</h3>
<pre class="programlisting"><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * raptor_new_namespace_from_uri (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-uri.html#raptor-uri" title="raptor_uri"><span class="type">raptor_uri</span></a> *ns_uri</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);</pre>
<p>
Constructor - create a new namespace from a prefix and URI object.
</p>
<p>
This declares but does not enable the namespace declaration (or 'start' it)
Use <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-start-namespace" title="raptor_namespaces_start_namespace ()"><code class="function">raptor_namespaces_start_namespace()</code></a> to make the namespace
enabled and in scope for binding prefixes.
</p>
<p>
Alternatively use <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-start-namespace-full" title="raptor_namespaces_start_namespace_full ()"><code class="function">raptor_namespaces_start_namespace_full()</code></a> can construct
and enable a namespace in one call.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td>namespace prefix string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns_uri</code></em> :</span></p></td>
<td>namespace URI</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>depth</code></em> :</span></p></td>
<td>depth of namespace in the stack</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-new-namespaces"></a><h3>raptor_new_namespaces ()</h3>
<pre class="programlisting"><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="returnvalue">raptor_namespace_stack</span></a> * raptor_new_namespaces (<em class="parameter"><code><a class="link" href="raptor2-section-world.html#raptor-world" title="raptor_world"><span class="type">raptor_world</span></a> *world</code></em>,
<em class="parameter"><code><span class="type">int</span> defaults</code></em>);</pre>
<p>
Constructor - create a new <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a>.
</p>
<p>
See <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-init" title="raptor_namespaces_init ()"><code class="function">raptor_namespaces_init()</code></a> for the values of <em class="parameter"><code>defaults</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>world</code></em> :</span></p></td>
<td>raptor_world object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>defaults</code></em> :</span></p></td>
<td>namespaces to initialise</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new namespace stack or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-init"></a><h3>raptor_namespaces_init ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> raptor_namespaces_init (<em class="parameter"><code><a class="link" href="raptor2-section-world.html#raptor-world" title="raptor_world"><span class="type">raptor_world</span></a> *world</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><span class="type">int</span> defaults</code></em>);</pre>
<p>
Initialise an existing namespaces stack object
</p>
<p>
This sets up the stack optionally with some common RDF namespaces.
</p>
<p>
<em class="parameter"><code>defaults</code></em> can be 0 for none, 1 for just XML, 2 for RDF, RDFS, OWL
and XSD (RDQL uses this) or 3+ undefined.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>world</code></em> :</span></p></td>
<td>raptor_world object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> to initialise</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>defaults</code></em> :</span></p></td>
<td>namespaces to initialise.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 on error</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-clear"></a><h3>raptor_namespaces_clear ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> raptor_namespaces_clear (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>);</pre>
<p>
Empty a namespace stack of namespaces and any other resources.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-free-namespaces"></a><h3>raptor_free_namespaces ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> raptor_free_namespaces (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>);</pre>
<p>
Destructor - destroy a namespace stack
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-start-namespace"></a><h3>raptor_namespaces_start_namespace ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> raptor_namespaces_start_namespace (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *nspace</code></em>);</pre>
<p>
Start a namespace on a stack of namespaces.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>nspace</code></em> :</span></p></td>
<td>namespace to start</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-start-namespace-full"></a><h3>raptor_namespaces_start_namespace_full ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> raptor_namespaces_start_namespace_full
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *ns_uri_string</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);</pre>
<p>
Create a new namespace and start it on a stack of namespaces.
</p>
<p>
See <a class="link" href="raptor2-section-xml-namespace.html#raptor-new-namespace" title="raptor_new_namespace ()"><code class="function">raptor_new_namespace()</code></a> for the meanings of <em class="parameter"><code>prefix</code></em>,
<em class="parameter"><code>ns_uri_string</code></em> and <em class="parameter"><code>depth</code></em> for namespaces.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td>new namespace prefix (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns_uri_string</code></em> :</span></p></td>
<td>new namespace URI (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>depth</code></em> :</span></p></td>
<td>new namespace depth</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-end-for-depth"></a><h3>raptor_namespaces_end_for_depth ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> raptor_namespaces_end_for_depth (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);</pre>
<p>
End all namespaces at the given depth in the namespace stack.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>depth</code></em> :</span></p></td>
<td>depth</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-get-default-namespace"></a><h3>raptor_namespaces_get_default_namespace ()</h3>
<pre class="programlisting"><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * raptor_namespaces_get_default_namespace
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>);</pre>
<p>
Get the current default namespace in-scope in a stack.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> or NULL if no default namespace is in scope</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-find-namespace"></a><h3>raptor_namespaces_find_namespace ()</h3>
<pre class="programlisting"><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * raptor_namespaces_find_namespace (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code><span class="type">int</span> prefix_length</code></em>);</pre>
<p>
Find a namespace in a namespace stack by prefix.
</p>
<p>
Note that this uses the <em class="parameter"><code>length</code></em> so that the prefix may be a prefix (sic)
of a longer string. If <em class="parameter"><code>prefix</code></em> is NULL, the default namespace will
be returned if present, <em class="parameter"><code>prefix_length</code></em> length is ignored in this case.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td>namespace prefix to find</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix_length</code></em> :</span></p></td>
<td>length of prefix.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> for the prefix or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-find-namespace-by-uri"></a><h3>raptor_namespaces_find_namespace_by_uri ()</h3>
<pre class="programlisting"><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * raptor_namespaces_find_namespace_by_uri
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-uri.html#raptor-uri" title="raptor_uri"><span class="type">raptor_uri</span></a> *ns_uri</code></em>);</pre>
<p>
Find a namespace in a namespace stack by namespace URI.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns_uri</code></em> :</span></p></td>
<td>namespace URI to find</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> for the URI or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespaces-namespace-in-scope"></a><h3>raptor_namespaces_namespace_in_scope ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> raptor_namespaces_namespace_in_scope
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *nspace</code></em>);</pre>
<p>
Test if a given namespace is in-scope in the namespace stack.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>nspace</code></em> :</span></p></td>
<td>namespace</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 if the namespace is in scope.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-new-namespace"></a><h3>raptor_new_namespace ()</h3>
<pre class="programlisting"><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="returnvalue">raptor_namespace</span></a> * raptor_new_namespace (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *prefix</code></em>,
<em class="parameter"><code>const unsigned <span class="type">char</span> *ns_uri_string</code></em>,
<em class="parameter"><code><span class="type">int</span> depth</code></em>);</pre>
<p>
Constructor - create a new namespace from a prefix and URI string with a depth scope.
</p>
<p>
This declares but does not enable the namespace declaration (or 'start' it)
Use <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-start-namespace" title="raptor_namespaces_start_namespace ()"><code class="function">raptor_namespaces_start_namespace()</code></a> to make the namespace
enabled and in scope for binding prefixes.
</p>
<p>
Alternatively use <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-start-namespace-full" title="raptor_namespaces_start_namespace_full ()"><code class="function">raptor_namespaces_start_namespace_full()</code></a> can construct
and enable a namespace in one call.
</p>
<p>
The <em class="parameter"><code>depth</code></em> is a way to use the stack of namespaces for providing scoped
namespaces where inner scope namespaces override outer scope namespaces.
This is primarily for RDF/XML and XML syntaxes that have hierarchical
elements. The main use of this is <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-end-for-depth" title="raptor_namespaces_end_for_depth ()"><code class="function">raptor_namespaces_end_for_depth()</code></a>
to disable ('end') all namespaces at a given depth. Otherwise set this
to 0.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td>namespace prefix string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns_uri_string</code></em> :</span></p></td>
<td>namespace URI string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>depth</code></em> :</span></p></td>
<td>depth of namespace in the stack</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-free-namespace"></a><h3>raptor_free_namespace ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> raptor_free_namespace (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>);</pre>
<p>
Destructor - destroy a namespace.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>ns</code></em> :</span></p></td>
<td>namespace object</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespace-get-uri"></a><h3>raptor_namespace_get_uri ()</h3>
<pre class="programlisting"><a class="link" href="raptor2-section-uri.html#raptor-uri" title="raptor_uri"><span class="returnvalue">raptor_uri</span></a> * raptor_namespace_get_uri (<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>);</pre>
<p>
Get the namespace URI.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns</code></em> :</span></p></td>
<td>namespace object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>namespace URI or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespace-get-prefix"></a><h3>raptor_namespace_get_prefix ()</h3>
<pre class="programlisting">const unsigned <span class="returnvalue">char</span> * raptor_namespace_get_prefix (<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>);</pre>
<p>
Get the namespace prefix.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns</code></em> :</span></p></td>
<td>namespace object</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>prefix string or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespace-get-counted-prefix"></a><h3>raptor_namespace_get_counted_prefix ()</h3>
<pre class="programlisting">const unsigned <span class="returnvalue">char</span> * raptor_namespace_get_counted_prefix
(<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);</pre>
<p>
Get the namespace prefix and length.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns</code></em> :</span></p></td>
<td>namespace object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length_p</code></em> :</span></p></td>
<td>pointer to store length or NULL</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>prefix string or NULL</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespace-write"></a><h3>raptor_namespace_write ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> raptor_namespace_write (<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-iostream.html#raptor-iostream" title="raptor_iostream"><span class="type">raptor_iostream</span></a> *iostr</code></em>);</pre>
<p>
Write a formatted namespace to an iostream
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns</code></em> :</span></p></td>
<td>namespace to write</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>iostr</code></em> :</span></p></td>
<td>raptor iosteram</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespace-stack"></a><h3>raptor_namespace_stack</h3>
<pre class="programlisting">raptor_namespace_stack* raptor_namespace_stack;
</pre>
<p>
Raptor XML Namespace Stack class
</p>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespace-stack-start-namespace"></a><h3>raptor_namespace_stack_start_namespace ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> raptor_namespace_stack_start_namespace
(<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-stack" title="raptor_namespace_stack"><span class="type">raptor_namespace_stack</span></a> *nstack</code></em>,
<em class="parameter"><code><a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><span class="type">int</span> new_depth</code></em>);</pre>
<p>
Copy an existing namespace to a namespace stack with a new depth
and start it.
</p>
<p>
The <em class="parameter"><code>depth</code></em> is a way to use the stack of namespaces for providing scoped
namespaces where inner scope namespaces override outer scope namespaces.
This is primarily for RDF/XML and XML syntaxes that have hierarchical
elements. The main use of this is <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespaces-end-for-depth" title="raptor_namespaces_end_for_depth ()"><code class="function">raptor_namespaces_end_for_depth()</code></a>
to disable ('end') all namespaces at a given depth. If depths are
not being needed it is unlikely this call is ever needed to copy an
existing namespace at a new depth.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nstack</code></em> :</span></p></td>
<td>namespace stack</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns</code></em> :</span></p></td>
<td>namespace</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>new_depth</code></em> :</span></p></td>
<td>new depth</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-namespace-format-as-xml"></a><h3>raptor_namespace_format_as_xml ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">char</span> * raptor_namespace_format_as_xml (<em class="parameter"><code>const <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace" title="raptor_namespace"><span class="type">raptor_namespace</span></a> *ns</code></em>,
<em class="parameter"><code><span class="type">size_t</span> *length_p</code></em>);</pre>
<p>
Format a namespace in an XML style into a newly allocated string.
</p>
<p>
Generates a string of the form xmlns:prefix="uri",
xmlns="uri", xmlns:prefix="" or xmlns="" depending on the
namespace's prefix or URI. Double quotes are always used.
</p>
<p>
If <em class="parameter"><code>length_p</code></em> is not NULL, the length of the string is
stored in the address it points to.
</p>
<p>
See also <a class="link" href="raptor2-section-xml-namespace.html#raptor-xml-namespace-string-parse" title="raptor_xml_namespace_string_parse ()"><code class="function">raptor_xml_namespace_string_parse()</code></a>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ns</code></em> :</span></p></td>
<td>namespace object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>length_p</code></em> :</span></p></td>
<td>pointer to length (or NULL)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>namespace formatted as newly allocated string or NULL on failure</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="raptor-xml-namespace-string-parse"></a><h3>raptor_xml_namespace_string_parse ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span> raptor_xml_namespace_string_parse (<em class="parameter"><code>const unsigned <span class="type">char</span> *string</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> **prefix</code></em>,
<em class="parameter"><code>unsigned <span class="type">char</span> **uri_string</code></em>);</pre>
<p>
Parse a string containing an XML style namespace declaration
into a namespace prefix and URI pair.
</p>
<p>
The string is of the form xmlns:prefix="uri",
xmlns="uri", xmlns:prefix="" or xmlns="".
The quotes can be single or double quotes.
</p>
<p>
Two values are returned from this function into *<em class="parameter"><code>prefix</code></em> and
*<em class="parameter"><code>uri_string</code></em>. Either but not both may be NULL.
</p>
<p>
See also <a class="link" href="raptor2-section-xml-namespace.html#raptor-namespace-format-as-xml" title="raptor_namespace_format_as_xml ()"><code class="function">raptor_namespace_format_as_xml()</code></a>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>string to parse</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td>pointer to location to store namespace prefix</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>uri_string</code></em> :</span></p></td>
<td>pointer to location to store namespace URI</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>non-0 on failure.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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