libxmljs
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libxml bindings for v8 javascript engine
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</style><title>Module xpathInternals from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="../epatents.png" alt="Action against software patents" /></a></td><td width="180"><a href="http://www.gnome.org/"><img src="../gnome2.png" alt="Gnome2 Logo" /></a><a href="http://www.w3.org/Status"><img src="../w3c.png" alt="W3C Logo" /></a><a href="http://www.redhat.com/"><img src="../redhat.gif" alt="Red Hat Logo" /></a><div align="left"><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-180x168.gif" alt="Made with Libxml2 Logo" /></a></div></td><td><table border="0" width="90%" cellpadding="2" cellspacing="0" align="center" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3" bgcolor="#fffacd"><tr><td align="center"><h1></h1><h2>Module xpathInternals from libxml2</h2></td></tr></table></td></tr></table></td></tr></table><table border="0" cellpadding="4" cellspacing="0" width="100%" align="center"><tr><td bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="2" width="100%"><tr><td valign="top" width="200" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>API Menu</b></center></td></tr><tr><td bgcolor="#fffacd"><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="20" value="" /><input name="submit" type="submit" value="Search ..." /></form><ul><li><a style="font-weight:bold" href="../index.html">Main Menu</a></li><li><a style="font-weight:bold" href="../docs.html">Developer Menu</a></li><li><a style="font-weight:bold" href="../examples/index.html">Code Examples</a></li><li><a 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bgcolor="#fffacd"><ul><li><a href="http://mail.gnome.org/archives/xml/">Mail archive</a></li><li><a href="http://xmlsoft.org/XSLT/">XSLT libxslt</a></li><li><a href="http://phd.cs.unibo.it/gdome2/">DOM gdome2</a></li><li><a href="http://www.aleksey.com/xmlsec/">XML-DSig xmlsec</a></li><li><a href="ftp://xmlsoft.org/">FTP</a></li><li><a href="http://www.zlatkovic.com/projects/libxml/">Windows binaries</a></li><li><a href="http://opencsw.org/packages/libxml2">Solaris binaries</a></li><li><a href="http://www.explain.com.au/oss/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://lxml.de/">lxml Python bindings</a></li><li><a href="http://cpan.uwinnipeg.ca/dist/XML-LibXML">Perl bindings</a></li><li><a href="http://libxmlplusplus.sourceforge.net/">C++ bindings</a></li><li><a href="http://www.zend.com/php5/articles/php5-xmlphp.php#Heading4">PHP bindings</a></li><li><a href="http://sourceforge.net/projects/libxml2-pas/">Pascal bindings</a></li><li><a href="http://libxml.rubyforge.org/">Ruby bindings</a></li><li><a href="http://tclxml.sourceforge.net/">Tcl bindings</a></li><li><a href="https://gitlab.gnome.org/GNOME/libxml2/issues">Bug Tracker</a></li></ul></td></tr></table></td></tr></table></td><td valign="top" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%"><tr><td><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table border="0" cellpadding="3" cellspacing="1" width="100%"><tr><td bgcolor="#fffacd"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libxml-xpath.html"><img src="left.png" width="24" height="24" border="0" alt="Prev" /></a></td><th align="left"><a href="libxml-xpath.html">xpath</a></th><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The XML C parser and toolkit of Gnome</a></th><th align="right"><a href="libxml-xpointer.html">xpointer</a></th><td><a accesskey="n" href="libxml-xpointer.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>internal interfaces for XML Path Language implementation used to build new modules on top of XPath like XPointer and XSLT </p><h2>Table of Contents</h2><pre class="programlisting">#define <a href="#CAST_TO_BOOLEAN">CAST_TO_BOOLEAN</a></pre><pre class="programlisting">#define <a href="#CAST_TO_NUMBER">CAST_TO_NUMBER</a></pre><pre class="programlisting">#define <a href="#CAST_TO_STRING">CAST_TO_STRING</a></pre><pre class="programlisting">#define <a href="#CHECK_ARITY">CHECK_ARITY</a></pre><pre class="programlisting">#define <a href="#CHECK_ERROR">CHECK_ERROR</a></pre><pre class="programlisting">#define <a href="#CHECK_ERROR0">CHECK_ERROR0</a></pre><pre class="programlisting">#define <a href="#CHECK_TYPE">CHECK_TYPE</a></pre><pre class="programlisting">#define <a href="#CHECK_TYPE0">CHECK_TYPE0</a></pre><pre class="programlisting">#define <a href="#XP_ERROR">XP_ERROR</a></pre><pre class="programlisting">#define <a href="#XP_ERROR0">XP_ERROR0</a></pre><pre class="programlisting">#define <a href="#xmlXPathCheckError">xmlXPathCheckError</a></pre><pre class="programlisting">#define <a href="#xmlXPathEmptyNodeSet">xmlXPathEmptyNodeSet</a></pre><pre class="programlisting">#define <a href="#xmlXPathGetContextNode">xmlXPathGetContextNode</a></pre><pre class="programlisting">#define <a href="#xmlXPathGetDocument">xmlXPathGetDocument</a></pre><pre class="programlisting">#define <a href="#xmlXPathGetError">xmlXPathGetError</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnBoolean">xmlXPathReturnBoolean</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnEmptyNodeSet">xmlXPathReturnEmptyNodeSet</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnEmptyString">xmlXPathReturnEmptyString</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnExternal">xmlXPathReturnExternal</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnFalse">xmlXPathReturnFalse</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnNodeSet">xmlXPathReturnNodeSet</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnNumber">xmlXPathReturnNumber</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnString">xmlXPathReturnString</a></pre><pre class="programlisting">#define <a href="#xmlXPathReturnTrue">xmlXPathReturnTrue</a></pre><pre class="programlisting">#define <a href="#xmlXPathSetArityError">xmlXPathSetArityError</a></pre><pre class="programlisting">#define <a href="#xmlXPathSetError">xmlXPathSetError</a></pre><pre class="programlisting">#define <a href="#xmlXPathSetTypeError">xmlXPathSetTypeError</a></pre><pre class="programlisting">#define <a href="#xmlXPathStackIsExternal">xmlXPathStackIsExternal</a></pre><pre class="programlisting">#define <a href="#xmlXPathStackIsNodeSet">xmlXPathStackIsNodeSet</a></pre><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#valuePop">valuePop</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">int <a href="#valuePush">valuePush</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value)</pre>
<pre class="programlisting">void <a href="#xmlXPathAddValues">xmlXPathAddValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathBooleanFunction">xmlXPathBooleanFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathCeilingFunction">xmlXPathCeilingFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">int <a href="#xmlXPathCompareValues">xmlXPathCompareValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int inf, <br /> int strict)</pre>
<pre class="programlisting">void <a href="#xmlXPathConcatFunction">xmlXPathConcatFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathContainsFunction">xmlXPathContainsFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathCountFunction">xmlXPathCountFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathDebugDumpCompExpr">xmlXPathDebugDumpCompExpr</a> (FILE * output, <br /> <a href="libxml-xpath.html#xmlXPathCompExprPtr">xmlXPathCompExprPtr</a> comp, <br /> int depth)</pre>
<pre class="programlisting">void <a href="#xmlXPathDebugDumpObject">xmlXPathDebugDumpObject</a> (FILE * output, <br /> <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> cur, <br /> int depth)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathDifference">xmlXPathDifference</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathDistinct">xmlXPathDistinct</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathDistinctSorted">xmlXPathDistinctSorted</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes)</pre>
<pre class="programlisting">void <a href="#xmlXPathDivValues">xmlXPathDivValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">int <a href="#xmlXPathEqualValues">xmlXPathEqualValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathErr">xmlXPathErr</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int error)</pre>
<pre class="programlisting">void <a href="#xmlXPathEvalExpr">xmlXPathEvalExpr</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">int <a href="#xmlXPathEvaluatePredicateResult">xmlXPathEvaluatePredicateResult</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> res)</pre>
<pre class="programlisting">void <a href="#xmlXPathFalseFunction">xmlXPathFalseFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathFloorFunction">xmlXPathFloorFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathFreeParserContext">xmlXPathFreeParserContext</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> <a href="#xmlXPathFunctionLookup">xmlXPathFunctionLookup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> <a href="#xmlXPathFunctionLookupNS">xmlXPathFunctionLookupNS</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * ns_uri)</pre>
<pre class="programlisting">int <a href="#xmlXPathHasSameNodes">xmlXPathHasSameNodes</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2)</pre>
<pre class="programlisting">void <a href="#xmlXPathIdFunction">xmlXPathIdFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathIntersection">xmlXPathIntersection</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2)</pre>
<pre class="programlisting">int <a href="#xmlXPathIsNodeType">xmlXPathIsNodeType</a> (const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)</pre>
<pre class="programlisting">void <a href="#xmlXPathLangFunction">xmlXPathLangFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathLastFunction">xmlXPathLastFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathLeading">xmlXPathLeading</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathLeadingSorted">xmlXPathLeadingSorted</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2)</pre>
<pre class="programlisting">void <a href="#xmlXPathLocalNameFunction">xmlXPathLocalNameFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathModValues">xmlXPathModValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathMultValues">xmlXPathMultValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathNamespaceURIFunction">xmlXPathNamespaceURIFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathNewBoolean">xmlXPathNewBoolean</a> (int val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathNewCString">xmlXPathNewCString</a> (const char * val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathNewFloat">xmlXPathNewFloat</a> (double val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathNewNodeSet">xmlXPathNewNodeSet</a> (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathNewNodeSetList">xmlXPathNewNodeSetList</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> <a href="#xmlXPathNewParserContext">xmlXPathNewParserContext</a> (const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * str, <br /> <a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathNewString">xmlXPathNewString</a> (const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathNewValueTree">xmlXPathNewValueTree</a> (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextAncestor">xmlXPathNextAncestor</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextAncestorOrSelf">xmlXPathNextAncestorOrSelf</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextAttribute">xmlXPathNextAttribute</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextChild">xmlXPathNextChild</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextDescendant">xmlXPathNextDescendant</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextDescendantOrSelf">xmlXPathNextDescendantOrSelf</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextFollowing">xmlXPathNextFollowing</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextFollowingSibling">xmlXPathNextFollowingSibling</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextNamespace">xmlXPathNextNamespace</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextParent">xmlXPathNextParent</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextPreceding">xmlXPathNextPreceding</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextPrecedingSibling">xmlXPathNextPrecedingSibling</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> <a href="#xmlXPathNextSelf">xmlXPathNextSelf</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathNodeLeading">xmlXPathNodeLeading</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathNodeLeadingSorted">xmlXPathNodeLeadingSorted</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node)</pre>
<pre class="programlisting">int <a href="#xmlXPathNodeSetAdd">xmlXPathNodeSetAdd</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val)</pre>
<pre class="programlisting">int <a href="#xmlXPathNodeSetAddNs">xmlXPathNodeSetAddNs</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node, <br /> <a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns)</pre>
<pre class="programlisting">int <a href="#xmlXPathNodeSetAddUnique">xmlXPathNodeSetAddUnique</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val)</pre>
<pre class="programlisting">int <a href="#xmlXPathNodeSetContains">xmlXPathNodeSetContains</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val)</pre>
<pre class="programlisting">void <a href="#xmlXPathNodeSetDel">xmlXPathNodeSetDel</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val)</pre>
<pre class="programlisting">void <a href="#xmlXPathNodeSetFreeNs">xmlXPathNodeSetFreeNs</a> (<a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathNodeSetMerge">xmlXPathNodeSetMerge</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val2)</pre>
<pre class="programlisting">void <a href="#xmlXPathNodeSetRemove">xmlXPathNodeSetRemove</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur, <br /> int val)</pre>
<pre class="programlisting">void <a href="#xmlXPathNodeSetSort">xmlXPathNodeSetSort</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> set)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathNodeTrailing">xmlXPathNodeTrailing</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathNodeTrailingSorted">xmlXPathNodeTrailingSorted</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes, <br /> <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node)</pre>
<pre class="programlisting">void <a href="#xmlXPathNormalizeFunction">xmlXPathNormalizeFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">int <a href="#xmlXPathNotEqualValues">xmlXPathNotEqualValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathNotFunction">xmlXPathNotFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlXPathNsLookup">xmlXPathNsLookup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix)</pre>
<pre class="programlisting">void <a href="#xmlXPathNumberFunction">xmlXPathNumberFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting"><a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlXPathParseNCName">xmlXPathParseNCName</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting"><a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlXPathParseName">xmlXPathParseName</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">int <a href="#xmlXPathPopBoolean">xmlXPathPopBoolean</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void * <a href="#xmlXPathPopExternal">xmlXPathPopExternal</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathPopNodeSet">xmlXPathPopNodeSet</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">double <a href="#xmlXPathPopNumber">xmlXPathPopNumber</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting"><a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * <a href="#xmlXPathPopString">xmlXPathPopString</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathPositionFunction">xmlXPathPositionFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathRegisterAllFunctions">xmlXPathRegisterAllFunctions</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt)</pre>
<pre class="programlisting">int <a href="#xmlXPathRegisterFunc">xmlXPathRegisterFunc</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f)</pre>
<pre class="programlisting">void <a href="#xmlXPathRegisterFuncLookup">xmlXPathRegisterFuncLookup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> <a href="libxml-xpath.html#xmlXPathFuncLookupFunc">xmlXPathFuncLookupFunc</a> f, <br /> void * funcCtxt)</pre>
<pre class="programlisting">int <a href="#xmlXPathRegisterFuncNS">xmlXPathRegisterFuncNS</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * ns_uri, <br /> <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f)</pre>
<pre class="programlisting">int <a href="#xmlXPathRegisterNs">xmlXPathRegisterNs</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * prefix, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * ns_uri)</pre>
<pre class="programlisting">int <a href="#xmlXPathRegisterVariable">xmlXPathRegisterVariable</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value)</pre>
<pre class="programlisting">void <a href="#xmlXPathRegisterVariableLookup">xmlXPathRegisterVariableLookup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> <a href="libxml-xpath.html#xmlXPathVariableLookupFunc">xmlXPathVariableLookupFunc</a> f, <br /> void * data)</pre>
<pre class="programlisting">int <a href="#xmlXPathRegisterVariableNS">xmlXPathRegisterVariableNS</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * ns_uri, <br /> <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value)</pre>
<pre class="programlisting">void <a href="#xmlXPathRegisteredFuncsCleanup">xmlXPathRegisteredFuncsCleanup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathRegisteredNsCleanup">xmlXPathRegisteredNsCleanup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathRegisteredVariablesCleanup">xmlXPathRegisteredVariablesCleanup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathRoot">xmlXPathRoot</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathRoundFunction">xmlXPathRoundFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathStartsWithFunction">xmlXPathStartsWithFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">double <a href="#xmlXPathStringEvalNumber">xmlXPathStringEvalNumber</a> (const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * str)</pre>
<pre class="programlisting">void <a href="#xmlXPathStringFunction">xmlXPathStringFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathStringLengthFunction">xmlXPathStringLengthFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathSubValues">xmlXPathSubValues</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting">void <a href="#xmlXPathSubstringAfterFunction">xmlXPathSubstringAfterFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathSubstringBeforeFunction">xmlXPathSubstringBeforeFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathSubstringFunction">xmlXPathSubstringFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathSumFunction">xmlXPathSumFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathTrailing">xmlXPathTrailing</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="#xmlXPathTrailingSorted">xmlXPathTrailingSorted</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1, <br /> <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2)</pre>
<pre class="programlisting">void <a href="#xmlXPathTranslateFunction">xmlXPathTranslateFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathTrueFunction">xmlXPathTrueFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)</pre>
<pre class="programlisting">void <a href="#xmlXPathValueFlipSign">xmlXPathValueFlipSign</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathVariableLookup">xmlXPathVariableLookup</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathVariableLookupNS">xmlXPathVariableLookupNS</a> (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name, <br /> const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * ns_uri)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathWrapCString">xmlXPathWrapCString</a> (char * val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathWrapExternal">xmlXPathWrapExternal</a> (void * val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathWrapNodeSet">xmlXPathWrapNodeSet</a> (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val)</pre>
<pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="#xmlXPathWrapString">xmlXPathWrapString</a> (<a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * val)</pre>
<pre class="programlisting">void <a href="#xmlXPatherror">xmlXPatherror</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> const char * file, <br /> int line, <br /> int no)</pre>
<h2>Description</h2>
<h3><a name="CAST_TO_BOOLEAN" id="CAST_TO_BOOLEAN"></a>Macro: CAST_TO_BOOLEAN</h3><pre>#define CAST_TO_BOOLEAN</pre><p>Macro to try to cast the value on the top of the XPath stack to a boolean.</p>
<h3><a name="CAST_TO_NUMBER" id="CAST_TO_NUMBER"></a>Macro: CAST_TO_NUMBER</h3><pre>#define CAST_TO_NUMBER</pre><p>Macro to try to cast the value on the top of the XPath stack to a number.</p>
<h3><a name="CAST_TO_STRING" id="CAST_TO_STRING"></a>Macro: CAST_TO_STRING</h3><pre>#define CAST_TO_STRING</pre><p>Macro to try to cast the value on the top of the XPath stack to a string.</p>
<h3><a name="CHECK_ARITY" id="CHECK_ARITY"></a>Macro: CHECK_ARITY</h3><pre>#define CHECK_ARITY</pre><p>Macro to check that the number of args passed to an XPath function matches.</p>
<h3><a name="CHECK_ERROR" id="CHECK_ERROR"></a>Macro: CHECK_ERROR</h3><pre>#define CHECK_ERROR</pre><p>Macro to return from the function if an XPath error was detected.</p>
<h3><a name="CHECK_ERROR0" id="CHECK_ERROR0"></a>Macro: CHECK_ERROR0</h3><pre>#define CHECK_ERROR0</pre><p>Macro to return 0 from the function if an XPath error was detected.</p>
<h3><a name="CHECK_TYPE" id="CHECK_TYPE"></a>Macro: CHECK_TYPE</h3><pre>#define CHECK_TYPE</pre><p>Macro to check that the value on top of the XPath stack is of a given type.</p>
<h3><a name="CHECK_TYPE0" id="CHECK_TYPE0"></a>Macro: CHECK_TYPE0</h3><pre>#define CHECK_TYPE0</pre><p>Macro to check that the value on top of the XPath stack is of a given type. Return(0) in case of failure</p>
<h3><a name="XP_ERROR" id="XP_ERROR"></a>Macro: XP_ERROR</h3><pre>#define XP_ERROR</pre><p>Macro to raise an XPath error and return.</p>
<h3><a name="XP_ERROR0" id="XP_ERROR0"></a>Macro: XP_ERROR0</h3><pre>#define XP_ERROR0</pre><p>Macro to raise an XPath error and return 0.</p>
<h3><a name="xmlXPathCheckError" id="xmlXPathCheckError"></a>Macro: xmlXPathCheckError</h3><pre>#define xmlXPathCheckError</pre><p>Check if an XPath error was raised. Returns true if an error has been raised, false otherwise.</p>
<h3><a name="xmlXPathEmptyNodeSet" id="xmlXPathEmptyNodeSet"></a>Macro: xmlXPathEmptyNodeSet</h3><pre>#define xmlXPathEmptyNodeSet</pre><p>Empties a node-set.</p>
<h3><a name="xmlXPathGetContextNode" id="xmlXPathGetContextNode"></a>Macro: xmlXPathGetContextNode</h3><pre>#define xmlXPathGetContextNode</pre><p>Get the context node of an XPath context. Returns the context node.</p>
<h3><a name="xmlXPathGetDocument" id="xmlXPathGetDocument"></a>Macro: xmlXPathGetDocument</h3><pre>#define xmlXPathGetDocument</pre><p>Get the document of an XPath context. Returns the context document.</p>
<h3><a name="xmlXPathGetError" id="xmlXPathGetError"></a>Macro: xmlXPathGetError</h3><pre>#define xmlXPathGetError</pre><p>Get the error code of an XPath context. Returns the context error.</p>
<h3><a name="xmlXPathReturnBoolean" id="xmlXPathReturnBoolean"></a>Macro: xmlXPathReturnBoolean</h3><pre>#define xmlXPathReturnBoolean</pre><p>Pushes the boolean @val on the context stack.</p>
<h3><a name="xmlXPathReturnEmptyNodeSet" id="xmlXPathReturnEmptyNodeSet"></a>Macro: xmlXPathReturnEmptyNodeSet</h3><pre>#define xmlXPathReturnEmptyNodeSet</pre><p>Pushes an empty node-set on the context stack.</p>
<h3><a name="xmlXPathReturnEmptyString" id="xmlXPathReturnEmptyString"></a>Macro: xmlXPathReturnEmptyString</h3><pre>#define xmlXPathReturnEmptyString</pre><p>Pushes an empty string on the stack.</p>
<h3><a name="xmlXPathReturnExternal" id="xmlXPathReturnExternal"></a>Macro: xmlXPathReturnExternal</h3><pre>#define xmlXPathReturnExternal</pre><p>Pushes user data on the context stack.</p>
<h3><a name="xmlXPathReturnFalse" id="xmlXPathReturnFalse"></a>Macro: xmlXPathReturnFalse</h3><pre>#define xmlXPathReturnFalse</pre><p>Pushes false on the context stack.</p>
<h3><a name="xmlXPathReturnNodeSet" id="xmlXPathReturnNodeSet"></a>Macro: xmlXPathReturnNodeSet</h3><pre>#define xmlXPathReturnNodeSet</pre><p>Pushes the node-set @ns on the context stack.</p>
<h3><a name="xmlXPathReturnNumber" id="xmlXPathReturnNumber"></a>Macro: xmlXPathReturnNumber</h3><pre>#define xmlXPathReturnNumber</pre><p>Pushes the double @val on the context stack.</p>
<h3><a name="xmlXPathReturnString" id="xmlXPathReturnString"></a>Macro: xmlXPathReturnString</h3><pre>#define xmlXPathReturnString</pre><p>Pushes the string @str on the context stack.</p>
<h3><a name="xmlXPathReturnTrue" id="xmlXPathReturnTrue"></a>Macro: xmlXPathReturnTrue</h3><pre>#define xmlXPathReturnTrue</pre><p>Pushes true on the context stack.</p>
<h3><a name="xmlXPathSetArityError" id="xmlXPathSetArityError"></a>Macro: xmlXPathSetArityError</h3><pre>#define xmlXPathSetArityError</pre><p>Raises an <a href="libxml-xpath.html#XPATH_INVALID_ARITY">XPATH_INVALID_ARITY</a> error.</p>
<h3><a name="xmlXPathSetError" id="xmlXPathSetError"></a>Macro: xmlXPathSetError</h3><pre>#define xmlXPathSetError</pre><p>Raises an error.</p>
<h3><a name="xmlXPathSetTypeError" id="xmlXPathSetTypeError"></a>Macro: xmlXPathSetTypeError</h3><pre>#define xmlXPathSetTypeError</pre><p>Raises an <a href="libxml-xpath.html#XPATH_INVALID_TYPE">XPATH_INVALID_TYPE</a> error.</p>
<h3><a name="xmlXPathStackIsExternal" id="xmlXPathStackIsExternal"></a>Macro: xmlXPathStackIsExternal</h3><pre>#define xmlXPathStackIsExternal</pre><p>Checks if the current value on the XPath stack is an external object. Returns true if the current object on the stack is an external object.</p>
<h3><a name="xmlXPathStackIsNodeSet" id="xmlXPathStackIsNodeSet"></a>Macro: xmlXPathStackIsNodeSet</h3><pre>#define xmlXPathStackIsNodeSet</pre><p>Check if the current value on the XPath stack is a node set or an XSLT value tree. Returns true if the current object on the stack is a node-set.</p>
<h3><a name="valuePop" id="valuePop"></a>Function: valuePop</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> valuePop (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)<br />
</pre><p>Pops the top XPath object from the value stack</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>an XPath evaluation context</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the XPath object just removed</td></tr></tbody></table></div><h3><a name="valuePush" id="valuePush"></a>Function: valuePush</h3><pre class="programlisting">int valuePush (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value)<br />
</pre><p>Pushes a new XPath object on top of the value stack. If value is NULL, a memory error is recorded in the parser context.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>an XPath evaluation context</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>the XPath object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of items on the value stack, or -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlXPathAddValues" id="xmlXPathAddValues"></a>Function: xmlXPathAddValues</h3><pre class="programlisting">void xmlXPathAddValues (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt)<br />
</pre><p>Implement the add operation on XPath objects: The numeric operators convert their operands to numbers as if by calling the number function.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XPath Parser context</td></tr></tbody></table></div><h3><a name="xmlXPathBooleanFunction" id="xmlXPathBooleanFunction"></a>Function: xmlXPathBooleanFunction</h3><pre class="programlisting">void xmlXPathBooleanFunction (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)<br />
</pre><p>Implement the boolean() XPath function boolean boolean(object) The boolean function converts its argument to a boolean as follows: - a number is true if and only if it is neither positive or negative zero nor NaN - a node-set is true if and only if it is non-empty - a string is true if and only if its length is non-zero</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XPath Parser context</td></tr><tr><td><span class="term"><i><tt>nargs</tt></i>:</span></td><td>the number of arguments</td></tr></tbody></table></div><h3><a name="xmlXPathCeilingFunction" id="xmlXPathCeilingFunction"></a>Function: xmlXPathCeilingFunction</h3><pre class="programlisting">void xmlXPathCeilingFunction (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)<br />
</pre><p>Implement the ceiling() XPath function number ceiling(number) The ceiling function returns the smallest (closest to negative infinity) number that is not less than the argument and that is an integer.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XPath Parser context</td></tr><tr><td><span class="term"><i><tt>nargs</tt></i>:</span></td><td>the number of arguments</td></tr></tbody></table></div><h3><a name="xmlXPathCompareValues" id="xmlXPathCompareValues"></a>Function: xmlXPathCompareValues</h3><pre class="programlisting">int xmlXPathCompareValues (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int inf, <br /> int strict)<br />
</pre><p>Implement the compare operation on XPath objects: @arg1 < @arg2 (1, 1, ... @arg1 <= @arg2 (1, 0, ... @arg1 > @arg2 (0, 1, ... @arg1 >= @arg2 (0, 0, ... When neither object to be compared is a node-set and the operator is <=, <, >=, >, then the objects are compared by converted both objects to numbers and comparing the numbers according to IEEE 754. The < comparison will be true if and only if the first number is less than the second number. The <= comparison will be true if and only if the first number is less than or equal to the second number. The > comparison will be true if and only if the first number is greater than the second number. The >= comparison will be true if and only if the first number is greater than or equal to the second number.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XPath Parser context</td></tr><tr><td><span class="term"><i><tt>inf</tt></i>:</span></td><td>less than (1) or greater than (0)</td></tr><tr><td><span class="term"><i><tt>strict</tt></i>:</span></td><td>is the comparison strict</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>1 if the comparison succeeded, 0 if it failed</td></tr></tbody></table></div><h3><a name="xmlXPathConcatFunction" id="xmlXPathConcatFunction"></a>Function: xmlXPathConcatFunction</h3><pre class="programlisting">void xmlXPathConcatFunction (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)<br />
</pre><p>Implement the concat() XPath function string concat(string, string, string*) The concat function returns the concatenation of its arguments.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span></td><td>the XPath Parser context</td></tr><tr><td><span class="term"><i><tt>nargs</tt></i>:</span></td><td>the number of arguments</td></tr></tbody></table></div><h3><a name="xmlXPathContainsFunction" id="xmlXPathContainsFunction"></a>Function: xmlXPathContainsFunction</h3><pre class="programlisting">void xmlXPathContainsFunction (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt, <br /> int nargs)<br />
</pre><p>Implement the contains() XPath function boolean contains(string, string) The contains function returns true if the first argument string contains the second argument string, and otherwise returns false.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i>:</span>