fixing a function comment switching to the XML/XSLT doc generation closing

* xmlschemas.c doc/libxml2-api.xml: fixing a function comment
* doc/Makefile.am doc/apibuild.py doc/gnome-xml.sgml: switching
  to the XML/XSLT doc generation closing #111799
* doc/html/*: complete update of the HTML results
Daniel
diff --git a/doc/html/libxml-xpathInternals.html b/doc/html/libxml-xpathInternals.html
new file mode 100644
index 0000000..bf37b62
--- /dev/null
+++ b/doc/html/libxml-xpathInternals.html
@@ -0,0 +1,1465 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>xpathInternals</title><meta name="generator" content="DocBook XSL Stylesheets V1.58.1"><style xmlns="http://www.w3.org/TR/xhtml1/transitional" type="text/css">
+        .synopsis, .classsynopsis {
+            background: #eeeeee;
+            border: solid 1px #aaaaaa;
+            padding: 0.5em;
+        }
+        .programlisting {
+            background: #eeeeff;
+            border: solid 1px #aaaaff;
+            padding: 0.5em;
+        }
+        .variablelist {
+            padding: 4px;
+            margin-left: 3em;
+        }
+        .navigation {
+            background: #ffeeee;
+            border: solid 1px #ffaaaa;
+            margin-top: 0.5em;
+            margin-bottom: 0.5em;
+        }
+        .navigation a {
+            color: #770000;
+        }
+        .navigation a:visited {
+            color: #550000;
+        }
+        .navigation .title {
+            font-size: 200%;
+        }
+      </style><link rel="home" href="index.html" title="Gnome XML Library Reference Manual"><link rel="up" href="libxml-lib.html" title="Libxml Library Reference"><link rel="previous" href="libxml-xpath.html" title="xpath"><link rel="next" href="libxml-xpointer.html" title="xpointer"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table xmlns="http://www.w3.org/TR/xhtml1/transitional" 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"></img></a></td><td><a accesskey="u" href="libxml-lib.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></img></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></img></a></td><th width="100%" align="center">Gnome XML Library Reference Manual</th><td><a accesskey="n" href="libxml-xpointer.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></img></a></td></tr></table><div class="refentry" lang="en"><a name="libxml-xpathInternals"></a><div class="titlepage"></div><div class="refnamediv"><h2>xpathInternals</h2><p>xpathInternals &#8212; </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
+
+
+
+#define     <a href="libxml-xpathInternals.html#xmlXPathSetError">xmlXPathSetError</a>                (ctxt, err)
+#define     <a href="libxml-xpathInternals.html#xmlXPathSetArityError">xmlXPathSetArityError</a>           (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathSetTypeError">xmlXPathSetTypeError</a>            (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathGetError">xmlXPathGetError</a>                (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>              (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathGetDocument">xmlXPathGetDocument</a>             (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathGetContextNode">xmlXPathGetContextNode</a>          (ctxt)
+int         <a href="libxml-xpathInternals.html#xmlXPathPopBoolean">xmlXPathPopBoolean</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      <a href="libxml-xpathInternals.html#xmlXPathPopNumber">xmlXPathPopNumber</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+<a href="libxml-tree.html#xmlChar">xmlChar</a>*    <a href="libxml-xpathInternals.html#xmlXPathPopString">xmlXPathPopString</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathPopNodeSet">xmlXPathPopNodeSet</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+void*       <a href="libxml-xpathInternals.html#xmlXPathPopExternal">xmlXPathPopExternal</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnBoolean">xmlXPathReturnBoolean</a>           (ctxt, val)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnTrue">xmlXPathReturnTrue</a>              (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnFalse">xmlXPathReturnFalse</a>             (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnNumber">xmlXPathReturnNumber</a>            (ctxt, val)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnString">xmlXPathReturnString</a>            (ctxt, str)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnEmptyString">xmlXPathReturnEmptyString</a>       (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnNodeSet">xmlXPathReturnNodeSet</a>           (ctxt, ns)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnEmptyNodeSet">xmlXPathReturnEmptyNodeSet</a>      (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathReturnExternal">xmlXPathReturnExternal</a>          (ctxt, val)
+#define     <a href="libxml-xpathInternals.html#xmlXPathStackIsNodeSet">xmlXPathStackIsNodeSet</a>          (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathStackIsExternal">xmlXPathStackIsExternal</a>         (ctxt)
+#define     <a href="libxml-xpathInternals.html#xmlXPathEmptyNodeSet">xmlXPathEmptyNodeSet</a>            (ns)
+#define     <a href="libxml-xpathInternals.html#CHECK-ERROR-CAPS">CHECK_ERROR</a>
+#define     <a href="libxml-xpathInternals.html#CHECK-ERROR0-CAPS">CHECK_ERROR0</a>
+#define     <a href="libxml-xpathInternals.html#XP-ERROR-CAPS">XP_ERROR</a>                        (X)
+#define     <a href="libxml-xpathInternals.html#XP-ERROR0-CAPS">XP_ERROR0</a>                       (X)
+#define     <a href="libxml-xpathInternals.html#CHECK-TYPE-CAPS">CHECK_TYPE</a>                      (typeval)
+#define     <a href="libxml-xpathInternals.html#CHECK-TYPE0-CAPS">CHECK_TYPE0</a>                     (typeval)
+#define     <a href="libxml-xpathInternals.html#CHECK-ARITY-CAPS">CHECK_ARITY</a>                     (x)
+#define     <a href="libxml-xpathInternals.html#CAST-TO-STRING-CAPS">CAST_TO_STRING</a>
+#define     <a href="libxml-xpathInternals.html#CAST-TO-NUMBER-CAPS">CAST_TO_NUMBER</a>
+#define     <a href="libxml-xpathInternals.html#CAST-TO-BOOLEAN-CAPS">CAST_TO_BOOLEAN</a>
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> (<a href="libxml-xpathInternals.html#xmlXPathVariableLookupFunc">*xmlXPathVariableLookupFunc</a>)
+                                            (void *ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
+void        <a href="libxml-xpathInternals.html#xmlXPathRegisterVariableLookup">xmlXPathRegisterVariableLookup</a>  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             <a href="libxml-xpathInternals.html#xmlXPathVariableLookupFunc">xmlXPathVariableLookupFunc</a> f,
+                                             void *data);
+<a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> (<a href="libxml-xpathInternals.html#xmlXPathFuncLookupFunc">*xmlXPathFuncLookupFunc</a>)  (void *ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
+void        <a href="libxml-xpathInternals.html#xmlXPathRegisterFuncLookup">xmlXPathRegisterFuncLookup</a>      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             <a href="libxml-xpathInternals.html#xmlXPathFuncLookupFunc">xmlXPathFuncLookupFunc</a> f,
+                                             void *funcCtxt);
+void        <a href="libxml-xpathInternals.html#xmlXPatherror">xmlXPatherror</a>                   (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             const char *file,
+                                             int line,
+                                             int no);
+void        <a href="libxml-xpathInternals.html#xmlXPathDebugDumpObject">xmlXPathDebugDumpObject</a>         (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> cur,
+                                             int depth);
+void        <a href="libxml-xpathInternals.html#xmlXPathDebugDumpCompExpr">xmlXPathDebugDumpCompExpr</a>       (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
+                                             <a href="libxml-xpath.html#xmlXPathCompExprPtr">xmlXPathCompExprPtr</a> comp,
+                                             int depth);
+int         <a href="libxml-xpathInternals.html#xmlXPathNodeSetContains">xmlXPathNodeSetContains</a>         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathDifference">xmlXPathDifference</a>            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathIntersection">xmlXPathIntersection</a>          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathDistinctSorted">xmlXPathDistinctSorted</a>        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathDistinct">xmlXPathDistinct</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);
+int         <a href="libxml-xpathInternals.html#xmlXPathHasSameNodes">xmlXPathHasSameNodes</a>            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeLeadingSorted">xmlXPathNodeLeadingSorted</a>     (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathLeadingSorted">xmlXPathLeadingSorted</a>         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeLeading">xmlXPathNodeLeading</a>           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathLeading">xmlXPathLeading</a>               (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeTrailingSorted">xmlXPathNodeTrailingSorted</a>    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathTrailingSorted">xmlXPathTrailingSorted</a>        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeTrailing">xmlXPathNodeTrailing</a>          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathTrailing">xmlXPathTrailing</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
+int         <a href="libxml-xpathInternals.html#xmlXPathRegisterNs">xmlXPathRegisterNs</a>              (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
+const <a href="libxml-tree.html#xmlChar">xmlChar</a>* <a href="libxml-xpathInternals.html#xmlXPathNsLookup">xmlXPathNsLookup</a>             (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix);
+void        <a href="libxml-xpathInternals.html#xmlXPathRegisteredNsCleanup">xmlXPathRegisteredNsCleanup</a>     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
+int         <a href="libxml-xpathInternals.html#xmlXPathRegisterFunc">xmlXPathRegisterFunc</a>            (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);
+int         <a href="libxml-xpathInternals.html#xmlXPathRegisterFuncNS">xmlXPathRegisterFuncNS</a>          (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
+                                             <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);
+int         <a href="libxml-xpathInternals.html#xmlXPathRegisterVariable">xmlXPathRegisterVariable</a>        (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);
+int         <a href="libxml-xpathInternals.html#xmlXPathRegisterVariableNS">xmlXPathRegisterVariableNS</a>      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);
+<a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> <a href="libxml-xpathInternals.html#xmlXPathFunctionLookup">xmlXPathFunctionLookup</a>     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);
+<a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> <a href="libxml-xpathInternals.html#xmlXPathFunctionLookupNS">xmlXPathFunctionLookupNS</a>   (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
+void        <a href="libxml-xpathInternals.html#xmlXPathRegisteredFuncsCleanup">xmlXPathRegisteredFuncsCleanup</a>  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathVariableLookup">xmlXPathVariableLookup</a>    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathVariableLookupNS">xmlXPathVariableLookupNS</a>  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
+void        <a href="libxml-xpathInternals.html#xmlXPathRegisteredVariablesCleanup">xmlXPathRegisteredVariablesCleanup</a>
+                                            (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
+<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewParserContext">xmlXPathNewParserContext</a>
+                                            (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str,
+                                             <a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
+void        <a href="libxml-xpathInternals.html#xmlXPathFreeParserContext">xmlXPathFreeParserContext</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#valuePop">valuePop</a>                  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+int         <a href="libxml-xpathInternals.html#valuePush">valuePush</a>                       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewString">xmlXPathNewString</a>         (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewCString">xmlXPathNewCString</a>        (const char *val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapString">xmlXPathWrapString</a>        (<a href="libxml-tree.html#xmlChar">xmlChar</a> *val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapCString">xmlXPathWrapCString</a>       (char *val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewFloat">xmlXPathNewFloat</a>          (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK> val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewBoolean">xmlXPathNewBoolean</a>        (int val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewNodeSet">xmlXPathNewNodeSet</a>        (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewValueTree">xmlXPathNewValueTree</a>      (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
+void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetAdd">xmlXPathNodeSetAdd</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
+void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetAddUnique">xmlXPathNodeSetAddUnique</a>        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
+void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetAddNs">xmlXPathNodeSetAddNs</a>            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node,
+                                             <a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);
+void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetSort">xmlXPathNodeSetSort</a>             (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> set);
+void        <a href="libxml-xpathInternals.html#xmlXPathRoot">xmlXPathRoot</a>                    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+void        <a href="libxml-xpathInternals.html#xmlXPathEvalExpr">xmlXPathEvalExpr</a>                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+<a href="libxml-tree.html#xmlChar">xmlChar</a>*    <a href="libxml-xpathInternals.html#xmlXPathParseName">xmlXPathParseName</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+<a href="libxml-tree.html#xmlChar">xmlChar</a>*    <a href="libxml-xpathInternals.html#xmlXPathParseNCName">xmlXPathParseNCName</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      <a href="libxml-xpathInternals.html#xmlXPathStringEvalNumber">xmlXPathStringEvalNumber</a>        (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str);
+int         <a href="libxml-xpathInternals.html#xmlXPathEvaluatePredicateResult">xmlXPathEvaluatePredicateResult</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> res);
+void        <a href="libxml-xpathInternals.html#xmlXPathRegisterAllFunctions">xmlXPathRegisterAllFunctions</a>    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
+<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeSetMerge">xmlXPathNodeSetMerge</a>          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val2);
+void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetDel">xmlXPathNodeSetDel</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
+void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetRemove">xmlXPathNodeSetRemove</a>           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             int val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewNodeSetList">xmlXPathNewNodeSetList</a>    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapNodeSet">xmlXPathWrapNodeSet</a>       (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);
+<a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapExternal">xmlXPathWrapExternal</a>      (void *val);
+int         <a href="libxml-xpathInternals.html#xmlXPathEqualValues">xmlXPathEqualValues</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+int         <a href="libxml-xpathInternals.html#xmlXPathNotEqualValues">xmlXPathNotEqualValues</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+int         <a href="libxml-xpathInternals.html#xmlXPathCompareValues">xmlXPathCompareValues</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int inf,
+                                             int strict);
+void        <a href="libxml-xpathInternals.html#xmlXPathValueFlipSign">xmlXPathValueFlipSign</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+void        <a href="libxml-xpathInternals.html#xmlXPathAddValues">xmlXPathAddValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+void        <a href="libxml-xpathInternals.html#xmlXPathSubValues">xmlXPathSubValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+void        <a href="libxml-xpathInternals.html#xmlXPathMultValues">xmlXPathMultValues</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+void        <a href="libxml-xpathInternals.html#xmlXPathDivValues">xmlXPathDivValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+void        <a href="libxml-xpathInternals.html#xmlXPathModValues">xmlXPathModValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
+int         <a href="libxml-xpathInternals.html#xmlXPathIsNodeType">xmlXPathIsNodeType</a>              (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextSelf">xmlXPathNextSelf</a>                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextChild">xmlXPathNextChild</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextDescendant">xmlXPathNextDescendant</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextDescendantOrSelf">xmlXPathNextDescendantOrSelf</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextParent">xmlXPathNextParent</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextAncestorOrSelf">xmlXPathNextAncestorOrSelf</a>      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextFollowingSibling">xmlXPathNextFollowingSibling</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextFollowing">xmlXPathNextFollowing</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextNamespace">xmlXPathNextNamespace</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextAttribute">xmlXPathNextAttribute</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextPreceding">xmlXPathNextPreceding</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextAncestor">xmlXPathNextAncestor</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextPrecedingSibling">xmlXPathNextPrecedingSibling</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
+void        <a href="libxml-xpathInternals.html#xmlXPathLastFunction">xmlXPathLastFunction</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathPositionFunction">xmlXPathPositionFunction</a>        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathCountFunction">xmlXPathCountFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathIdFunction">xmlXPathIdFunction</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathLocalNameFunction">xmlXPathLocalNameFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathNamespaceURIFunction">xmlXPathNamespaceURIFunction</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathStringFunction">xmlXPathStringFunction</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathStringLengthFunction">xmlXPathStringLengthFunction</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathConcatFunction">xmlXPathConcatFunction</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathContainsFunction">xmlXPathContainsFunction</a>        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathStartsWithFunction">xmlXPathStartsWithFunction</a>      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathSubstringFunction">xmlXPathSubstringFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathSubstringBeforeFunction">xmlXPathSubstringBeforeFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathSubstringAfterFunction">xmlXPathSubstringAfterFunction</a>  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathNormalizeFunction">xmlXPathNormalizeFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathTranslateFunction">xmlXPathTranslateFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathNotFunction">xmlXPathNotFunction</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathTrueFunction">xmlXPathTrueFunction</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathFalseFunction">xmlXPathFalseFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathLangFunction">xmlXPathLangFunction</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathNumberFunction">xmlXPathNumberFunction</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathSumFunction">xmlXPathSumFunction</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathFloorFunction">xmlXPathFloorFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathCeilingFunction">xmlXPathCeilingFunction</a>         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathRoundFunction">xmlXPathRoundFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathBooleanFunction">xmlXPathBooleanFunction</a>         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);
+void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetFreeNs">xmlXPathNodeSetFreeNs</a>           (<a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);
+</pre></div><div class="refsect1" lang="en"><h2>Description</h2><p>
+
+</p></div><div class="refsect1" lang="en"><h2>Details</h2><div class="refsect2" lang="en"><h3><a name="xmlXPathSetError"></a>xmlXPathSetError()</h3><pre class="programlisting">#define     xmlXPathSetError(ctxt, err)</pre><p>
+Raises an error.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><i><tt>err</tt></i> :</span></td><td>  an xmlXPathError code
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSetArityError"></a>xmlXPathSetArityError()</h3><pre class="programlisting">#define     xmlXPathSetArityError(ctxt)</pre><p>
+Raises an XPATH_INVALID_ARITY error.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSetTypeError"></a>xmlXPathSetTypeError()</h3><pre class="programlisting">#define     xmlXPathSetTypeError(ctxt)</pre><p>
+Raises an XPATH_INVALID_TYPE error.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathGetError"></a>xmlXPathGetError()</h3><pre class="programlisting">#define xmlXPathGetError(ctxt)	  ((ctxt)-&gt;error)
+</pre><p>
+Get the error code of an XPath context.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCheckError"></a>xmlXPathCheckError()</h3><pre class="programlisting">#define xmlXPathCheckError(ctxt)  ((ctxt)-&gt;error != XPATH_EXPRESSION_OK)
+</pre><p>
+Check if an XPath error was raised.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathGetDocument"></a>xmlXPathGetDocument()</h3><pre class="programlisting">#define xmlXPathGetDocument(ctxt)	((ctxt)-&gt;context-&gt;doc)
+</pre><p>
+Get the document of an XPath context.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathGetContextNode"></a>xmlXPathGetContextNode()</h3><pre class="programlisting">#define xmlXPathGetContextNode(ctxt)	((ctxt)-&gt;context-&gt;node)
+</pre><p>
+Get the context node of an XPath context.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td> an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopBoolean"></a>xmlXPathPopBoolean ()</h3><pre class="programlisting">int         xmlXPathPopBoolean              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Pops a boolean from the stack, handling conversion if needed.
+Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the boolean
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopNumber"></a>xmlXPathPopNumber ()</h3><pre class="programlisting"><GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      xmlXPathPopNumber               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Pops a number from the stack, handling conversion if needed.
+Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the number
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopString"></a>xmlXPathPopString ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlChar">xmlChar</a>*    xmlXPathPopString               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Pops a string from the stack, handling conversion if needed.
+Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the string
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopNodeSet"></a>xmlXPathPopNodeSet ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathPopNodeSet            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Pops a node-set from the stack, handling conversion if needed.
+Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the node-set
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopExternal"></a>xmlXPathPopExternal ()</h3><pre class="programlisting">void*       xmlXPathPopExternal             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Pops an external object from the stack, handling conversion if needed.
+Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnBoolean"></a>xmlXPathReturnBoolean()</h3><pre class="programlisting">#define     xmlXPathReturnBoolean(ctxt, val)</pre><p>
+Pushes the boolean <i><tt>val</tt></i> on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a boolean
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnTrue"></a>xmlXPathReturnTrue()</h3><pre class="programlisting">#define xmlXPathReturnTrue(ctxt)   xmlXPathReturnBoolean((ctxt), 1)
+</pre><p>
+Pushes true on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnFalse"></a>xmlXPathReturnFalse()</h3><pre class="programlisting">#define xmlXPathReturnFalse(ctxt)  xmlXPathReturnBoolean((ctxt), 0)
+</pre><p>
+Pushes false on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnNumber"></a>xmlXPathReturnNumber()</h3><pre class="programlisting">#define     xmlXPathReturnNumber(ctxt, val)</pre><p>
+Pushes the double <i><tt>val</tt></i> on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a double
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnString"></a>xmlXPathReturnString()</h3><pre class="programlisting">#define     xmlXPathReturnString(ctxt, str)</pre><p>
+Pushes the string <i><tt>str</tt></i> on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><i><tt>str</tt></i> :</span></td><td>  a string
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnEmptyString"></a>xmlXPathReturnEmptyString()</h3><pre class="programlisting">#define     xmlXPathReturnEmptyString(ctxt)</pre><p>
+Pushes an empty string on the stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnNodeSet"></a>xmlXPathReturnNodeSet()</h3><pre class="programlisting">#define     xmlXPathReturnNodeSet(ctxt, ns)</pre><p>
+Pushes the node-set <i><tt>ns</tt></i> on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  a node-set
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnEmptyNodeSet"></a>xmlXPathReturnEmptyNodeSet()</h3><pre class="programlisting">#define     xmlXPathReturnEmptyNodeSet(ctxt)</pre><p>
+Pushes an empty node-set on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnExternal"></a>xmlXPathReturnExternal()</h3><pre class="programlisting">#define     xmlXPathReturnExternal(ctxt, val)</pre><p>
+Pushes user data on the context stack.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  user data
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStackIsNodeSet"></a>xmlXPathStackIsNodeSet()</h3><pre class="programlisting">#define     xmlXPathStackIsNodeSet(ctxt)</pre><p>
+Check if the current value on the XPath stack is a node set or
+an XSLT value tree.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td> an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStackIsExternal"></a>xmlXPathStackIsExternal()</h3><pre class="programlisting">#define     xmlXPathStackIsExternal(ctxt)</pre><p>
+Checks if the current value on the XPath stack is an external
+object.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td> an XPath parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEmptyNodeSet"></a>xmlXPathEmptyNodeSet()</h3><pre class="programlisting">#define     xmlXPathEmptyNodeSet(ns)</pre><p>
+Empties a node-set.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  a node-set
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-ERROR-CAPS"></a>CHECK_ERROR</h3><pre class="programlisting">#define     CHECK_ERROR</pre><p>
+Macro to return from the function if an XPath error was detected.</p><p>
+
+</p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-ERROR0-CAPS"></a>CHECK_ERROR0</h3><pre class="programlisting">#define     CHECK_ERROR0</pre><p>
+Macro to return 0 from the function if an XPath error was detected.</p><p>
+
+</p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="XP-ERROR-CAPS"></a>XP_ERROR()</h3><pre class="programlisting">#define     XP_ERROR(X)</pre><p>
+Macro to raise an XPath error and return.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>X</tt></i> :</span></td><td>  the error code
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="XP-ERROR0-CAPS"></a>XP_ERROR0()</h3><pre class="programlisting">#define     XP_ERROR0(X)</pre><p>
+Macro to raise an XPath error and return 0.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>X</tt></i> :</span></td><td>  the error code
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-TYPE-CAPS"></a>CHECK_TYPE()</h3><pre class="programlisting">#define     CHECK_TYPE(typeval)</pre><p>
+Macro to check that the value on top of the XPath stack is of a given
+type.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>typeval</tt></i> :</span></td><td>  the XPath type
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-TYPE0-CAPS"></a>CHECK_TYPE0()</h3><pre class="programlisting">#define     CHECK_TYPE0(typeval)</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><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>typeval</tt></i> :</span></td><td>  the XPath type
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-ARITY-CAPS"></a>CHECK_ARITY()</h3><pre class="programlisting">#define     CHECK_ARITY(x)</pre><p>
+Macro to check that the number of args passed to an XPath function matches.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>x</tt></i> :</span></td><td>  the number of expected args
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CAST-TO-STRING-CAPS"></a>CAST_TO_STRING</h3><pre class="programlisting">#define     CAST_TO_STRING</pre><p>
+Macro to try to cast the value on the top of the XPath stack to a string.</p><p>
+
+</p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CAST-TO-NUMBER-CAPS"></a>CAST_TO_NUMBER</h3><pre class="programlisting">#define     CAST_TO_NUMBER</pre><p>
+Macro to try to cast the value on the top of the XPath stack to a number.</p><p>
+
+</p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CAST-TO-BOOLEAN-CAPS"></a>CAST_TO_BOOLEAN</h3><pre class="programlisting">#define     CAST_TO_BOOLEAN</pre><p>
+Macro to try to cast the value on the top of the XPath stack to a boolean.</p><p>
+
+</p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathVariableLookupFunc"></a>xmlXPathVariableLookupFunc ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> (*xmlXPathVariableLookupFunc)
+                                            (void *ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
+Prototype for callbacks used to plug variable lookup in the XPath
+engine.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  name of the variable
+</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the namespace name hosting this variable
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the XPath object value or NULL if not found.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterVariableLookup"></a>xmlXPathRegisterVariableLookup ()</h3><pre class="programlisting">void        xmlXPathRegisterVariableLookup  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             <a href="libxml-xpathInternals.html#xmlXPathVariableLookupFunc">xmlXPathVariableLookupFunc</a> f,
+                                             void *data);</pre><p>
+register an external mechanism to do variable lookup</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the lookup function
+</td></tr><tr><td><span class="term"><i><tt>data</tt></i> :</span></td><td>  the lookup data
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFuncLookupFunc"></a>xmlXPathFuncLookupFunc ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> (*xmlXPathFuncLookupFunc)  (void *ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
+Prototype for callbacks used to plug function lookup in the XPath
+engine.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  name of the function
+</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the namespace name hosting this function
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the XPath function or NULL if not found.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterFuncLookup"></a>xmlXPathRegisterFuncLookup ()</h3><pre class="programlisting">void        xmlXPathRegisterFuncLookup      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             <a href="libxml-xpathInternals.html#xmlXPathFuncLookupFunc">xmlXPathFuncLookupFunc</a> f,
+                                             void *funcCtxt);</pre><p>
+Registers an external mechanism to do function lookup.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the lookup function
+</td></tr><tr><td><span class="term"><i><tt>funcCtxt</tt></i> :</span></td><td>  the lookup data
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPatherror"></a>xmlXPatherror ()</h3><pre class="programlisting">void        xmlXPatherror                   (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             const char *file,
+                                             int line,
+                                             int no);</pre><p>
+Formats an error message.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>file</tt></i> :</span></td><td>  the file name
+</td></tr><tr><td><span class="term"><i><tt>line</tt></i> :</span></td><td>  the line number
+</td></tr><tr><td><span class="term"><i><tt>no</tt></i> :</span></td><td>  the error number
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDebugDumpObject"></a>xmlXPathDebugDumpObject ()</h3><pre class="programlisting">void        xmlXPathDebugDumpObject         (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> cur,
+                                             int depth);</pre><p>
+Dump the content of the object for debugging purposes</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>output</tt></i> :</span></td><td>  the FILE * to dump the output
+</td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the object to inspect
+</td></tr><tr><td><span class="term"><i><tt>depth</tt></i> :</span></td><td>  indentation level
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDebugDumpCompExpr"></a>xmlXPathDebugDumpCompExpr ()</h3><pre class="programlisting">void        xmlXPathDebugDumpCompExpr       (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
+                                             <a href="libxml-xpath.html#xmlXPathCompExprPtr">xmlXPathCompExprPtr</a> comp,
+                                             int depth);</pre><p>
+Dumps the tree of the compiled XPath expression.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>output</tt></i> :</span></td><td>  the FILE * for the output
+</td></tr><tr><td><span class="term"><i><tt>comp</tt></i> :</span></td><td>  the precompiled XPath expression
+</td></tr><tr><td><span class="term"><i><tt>depth</tt></i> :</span></td><td>  the indentation level.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetContains"></a>xmlXPathNodeSetContains ()</h3><pre class="programlisting">int         xmlXPathNodeSetContains         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
+checks whether <i><tt>cur</tt></i> contains <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the node-set
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the node
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>true (1) if <i><tt>cur</tt></i> contains <i><tt>val</tt></i>, false (0) otherwise
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDifference"></a>xmlXPathDifference ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathDifference            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="difference">difference</GTKDOCLINK>() function:
+   node-set set:difference (node-set, node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the difference between the two node sets, or nodes1 if
+        nodes2 is empty
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathIntersection"></a>xmlXPathIntersection ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathIntersection          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="intersection">intersection</GTKDOCLINK>() function:
+   node-set set:intersection (node-set, node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a node set comprising the nodes that are within both the
+        node sets passed as arguments
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDistinctSorted"></a>xmlXPathDistinctSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathDistinctSorted        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="distinct">distinct</GTKDOCLINK>() function:
+   node-set set:distinct (node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set, sorted by document order
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a subset of the nodes contained in <i><tt>nodes</tt></i>, or <i><tt>nodes</tt></i> if
+        it is empty
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDistinct"></a>xmlXPathDistinct ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathDistinct              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="distinct">distinct</GTKDOCLINK>() function:
+   node-set set:distinct (node-set)
+<i><tt>nodes</tt></i> is sorted by document order, then <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="exslSetsDistinctSorted">exslSetsDistinctSorted</GTKDOCLINK>
+is called with the sorted node-set</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a subset of the nodes contained in <i><tt>nodes</tt></i>, or <i><tt>nodes</tt></i> if
+        it is empty
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathHasSameNodes"></a>xmlXPathHasSameNodes ()</h3><pre class="programlisting">int         xmlXPathHasSameNodes            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
+Implements the EXSLT - Sets has-same-nodes function:
+   boolean set:has-same-node(node-set, node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>true (1) if <i><tt>nodes1</tt></i> shares any node with <i><tt>nodes2</tt></i>, false (0)
+        otherwise
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeLeadingSorted"></a>xmlXPathNodeLeadingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeLeadingSorted     (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
+   node-set set:leading (node-set, node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td> a node-set, sorted by document order
+</td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td> a node
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that precede <i><tt>node</tt></i> in document order,
+        <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
+        doesn't contain <i><tt>node</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLeadingSorted"></a>xmlXPathLeadingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathLeadingSorted         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
+   node-set set:leading (node-set, node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set, sorted by document order
+</td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set, sorted by document order
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that precede the first node in <i><tt>nodes2</tt></i>
+        in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
+        an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeLeading"></a>xmlXPathNodeLeading ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeLeading           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
+   node-set set:leading (node-set, node-set)
+<i><tt>nodes</tt></i> is sorted by document order, then <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="exslSetsNodeLeadingSorted">exslSetsNodeLeadingSorted</GTKDOCLINK>
+is called.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td>  a node
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that precede <i><tt>node</tt></i> in document order,
+        <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
+        doesn't contain <i><tt>node</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLeading"></a>xmlXPathLeading ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathLeading               (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
+   node-set set:leading (node-set, node-set)
+<i><tt>nodes1</tt></i> and <i><tt>nodes2</tt></i> are sorted by document order, then
+<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="exslSetsLeadingSorted">exslSetsLeadingSorted</GTKDOCLINK> is called.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that precede the first node in <i><tt>nodes2</tt></i>
+        in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
+        an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeTrailingSorted"></a>xmlXPathNodeTrailingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeTrailingSorted    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
+   node-set set:trailing (node-set, node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td> a node-set, sorted by document order
+</td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td> a node
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that follow <i><tt>node</tt></i> in document order,
+        <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
+        doesn't contain <i><tt>node</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTrailingSorted"></a>xmlXPathTrailingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathTrailingSorted        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
+   node-set set:trailing (node-set, node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set, sorted by document order
+</td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set, sorted by document order
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that follow the first node in <i><tt>nodes2</tt></i>
+        in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
+        an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeTrailing"></a>xmlXPathNodeTrailing ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeTrailing          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
+   node-set set:trailing (node-set, node-set)
+<i><tt>nodes</tt></i> is sorted by document order, then <a href="libxml-xpathInternals.html#xmlXPathNodeTrailingSorted">xmlXPathNodeTrailingSorted</a>
+is called.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td>  a node
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that follow <i><tt>node</tt></i> in document order,
+        <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
+        doesn't contain <i><tt>node</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTrailing"></a>xmlXPathTrailing ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathTrailing              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
+Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
+   node-set set:trailing (node-set, node-set)
+<i><tt>nodes1</tt></i> and <i><tt>nodes2</tt></i> are sorted by document order, then
+<a href="libxml-xpathInternals.html#xmlXPathTrailingSorted">xmlXPathTrailingSorted</a> is called.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that follow the first node in <i><tt>nodes2</tt></i>
+        in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
+        an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterNs"></a>xmlXPathRegisterNs ()</h3><pre class="programlisting">int         xmlXPathRegisterNs              (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
+Register a new namespace. If <i><tt>ns_uri</tt></i> is NULL it unregisters
+the namespace</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>prefix</tt></i> :</span></td><td>  the namespace prefix
+</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the namespace name
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNsLookup"></a>xmlXPathNsLookup ()</h3><pre class="programlisting">const <a href="libxml-tree.html#xmlChar">xmlChar</a>* xmlXPathNsLookup             (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix);</pre><p>
+Search in the namespace declaration array of the context for the given
+namespace name associated to the given prefix</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>prefix</tt></i> :</span></td><td>  the namespace prefix value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the value or NULL if not found
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisteredNsCleanup"></a>xmlXPathRegisteredNsCleanup ()</h3><pre class="programlisting">void        xmlXPathRegisteredNsCleanup     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
+Cleanup the XPath context data associated to registered variables</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterFunc"></a>xmlXPathRegisterFunc ()</h3><pre class="programlisting">int         xmlXPathRegisterFunc            (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);</pre><p>
+Register a new function. If <i><tt>f</tt></i> is NULL it unregisters the function</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
+</td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the function implementation or NULL
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterFuncNS"></a>xmlXPathRegisterFuncNS ()</h3><pre class="programlisting">int         xmlXPathRegisterFuncNS          (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
+                                             <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);</pre><p>
+Register a new function. If <i><tt>f</tt></i> is NULL it unregisters the function</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
+</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the function namespace URI
+</td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the function implementation or NULL
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterVariable"></a>xmlXPathRegisterVariable ()</h3><pre class="programlisting">int         xmlXPathRegisterVariable        (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);</pre><p>
+Register a new variable value. If <i><tt>value</tt></i> is NULL it unregisters
+the variable</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
+</td></tr><tr><td><span class="term"><i><tt>value</tt></i> :</span></td><td>  the variable value or NULL
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterVariableNS"></a>xmlXPathRegisterVariableNS ()</h3><pre class="programlisting">int         xmlXPathRegisterVariableNS      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);</pre><p>
+Register a new variable value. If <i><tt>value</tt></i> is NULL it unregisters
+the variable</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
+</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the variable namespace URI
+</td></tr><tr><td><span class="term"><i><tt>value</tt></i> :</span></td><td>  the variable value or NULL
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFunctionLookup"></a>xmlXPathFunctionLookup ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> xmlXPathFunctionLookup     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);</pre><p>
+Search in the Function array of the context for the given
+function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the xmlXPathFunction or NULL if not found
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFunctionLookupNS"></a>xmlXPathFunctionLookupNS ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> xmlXPathFunctionLookupNS   (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
+Search in the Function array of the context for the given
+function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
+</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the function namespace URI
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the xmlXPathFunction or NULL if not found
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisteredFuncsCleanup"></a>xmlXPathRegisteredFuncsCleanup ()</h3><pre class="programlisting">void        xmlXPathRegisteredFuncsCleanup  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
+Cleanup the XPath context data associated to registered functions</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathVariableLookup"></a>xmlXPathVariableLookup ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathVariableLookup    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);</pre><p>
+Search in the Variable array of the context for the given
+variable value.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a copy of the value or NULL if not found
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathVariableLookupNS"></a>xmlXPathVariableLookupNS ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathVariableLookupNS  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
+                                             const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
+Search in the Variable array of the context for the given
+variable value.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
+</td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the variable namespace URI
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the a copy of the value or NULL if not found
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisteredVariablesCleanup"></a>xmlXPathRegisteredVariablesCleanup ()</h3><pre class="programlisting">void        xmlXPathRegisteredVariablesCleanup
+                                            (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
+Cleanup the XPath context data associated to registered variables</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewParserContext"></a>xmlXPathNewParserContext ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> xmlXPathNewParserContext
+                                            (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str,
+                                             <a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
+Create a new xmlXPathParserContext</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>str</tt></i> :</span></td><td>  the XPath expression
+</td></tr><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the xmlXPathParserContext just allocated.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFreeParserContext"></a>xmlXPathFreeParserContext ()</h3><pre class="programlisting">void        xmlXPathFreeParserContext       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Free up an xmlXPathParserContext</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the context to free
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="valuePop"></a>valuePop ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> valuePop                  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Pops the top XPath object from the value stack</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the XPath object just removed
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="valuePush"></a>valuePush ()</h3><pre class="programlisting">int         valuePush                       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);</pre><p>
+Pushes a new XPath object on top of the value stack</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the number of items on the value stack
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewString"></a>xmlXPathNewString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewString         (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *val);</pre><p>
+Create a new xmlXPathObjectPtr of type string and of value <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the xmlChar * value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewCString"></a>xmlXPathNewCString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewCString        (const char *val);</pre><p>
+Create a new xmlXPathObjectPtr of type string and of value <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the char * value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapString"></a>xmlXPathWrapString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapString        (<a href="libxml-tree.html#xmlChar">xmlChar</a> *val);</pre><p>
+Wraps the <i><tt>val</tt></i> string into an XPath object.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the xmlChar * value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapCString"></a>xmlXPathWrapCString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapCString       (char *val);</pre><p>
+Wraps a string into an XPath object.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the char * value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewFloat"></a>xmlXPathNewFloat ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewFloat          (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK> val);</pre><p>
+Create a new xmlXPathObjectPtr of type double and of value <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the double value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewBoolean"></a>xmlXPathNewBoolean ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewBoolean        (int val);</pre><p>
+Create a new xmlXPathObjectPtr of type boolean and of value <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the boolean value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewNodeSet"></a>xmlXPathNewNodeSet ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewNodeSet        (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
+Create a new xmlXPathObjectPtr of type NodeSet and initialize
+it with the single Node <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the NodePtr value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewValueTree"></a>xmlXPathNewValueTree ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewValueTree      (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
+Create a new xmlXPathObjectPtr of type Value Tree (XSLT) and initialize
+it with the tree root <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the NodePtr value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetAdd"></a>xmlXPathNodeSetAdd ()</h3><pre class="programlisting">void        xmlXPathNodeSetAdd              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
+add a new xmlNodePtr to an existing NodeSet</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a new xmlNodePtr
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetAddUnique"></a>xmlXPathNodeSetAddUnique ()</h3><pre class="programlisting">void        xmlXPathNodeSetAddUnique        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
+add a new xmlNodePtr to an existing NodeSet, optimized version
+when we are sure the node is not already in the set.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a new xmlNodePtr
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetAddNs"></a>xmlXPathNodeSetAddNs ()</h3><pre class="programlisting">void        xmlXPathNodeSetAddNs            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node,
+                                             <a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);</pre><p>
+add a new namespace node to an existing NodeSet</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
+</td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td>  the hosting node
+</td></tr><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  a the namespace node
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetSort"></a>xmlXPathNodeSetSort ()</h3><pre class="programlisting">void        xmlXPathNodeSetSort             (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> set);</pre><p>
+Sort the node set in document order</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>set</tt></i> :</span></td><td>  the node set
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRoot"></a>xmlXPathRoot ()</h3><pre class="programlisting">void        xmlXPathRoot                    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Initialize the context to the root of the document</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEvalExpr"></a>xmlXPathEvalExpr ()</h3><pre class="programlisting">void        xmlXPathEvalExpr                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Parse and evaluate an XPath expression in the given context,
+then push the result on the context stack</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathParseName"></a>xmlXPathParseName ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlChar">xmlChar</a>*    xmlXPathParseName               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+parse an XML name
+</p><p>
+[4] NameChar ::= Letter | Digit | '.' | '-' | '_' | ':' |
+                 CombiningChar | Extender
+</p><p>
+[5] Name ::= (Letter | '_' | ':') (NameChar)*</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the namespace name or NULL
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathParseNCName"></a>xmlXPathParseNCName ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlChar">xmlChar</a>*    xmlXPathParseNCName             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+parse an XML namespace non qualified name.
+</p><p>
+[NS 3] NCName ::= (Letter | '_') (NCNameChar)*
+</p><p>
+[NS 4] NCNameChar ::= Letter | Digit | '.' | '-' | '_' |
+                      CombiningChar | Extender</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the namespace name or NULL
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStringEvalNumber"></a>xmlXPathStringEvalNumber ()</h3><pre class="programlisting"><GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      xmlXPathStringEvalNumber        (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str);</pre><p>
+[30a]  Float  ::= Number ('e' Digits?)?
+</p><p>
+ [30]   Number ::=   Digits ('.' Digits?)?
+                   | '.' Digits 
+ [31]   Digits ::=   [0-9]+
+</p><p>
+Compile a Number in the string
+In complement of the Number expression, this function also handles
+negative values : '-' Number.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>str</tt></i> :</span></td><td>  A string to scan
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the double value.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEvaluatePredicateResult"></a>xmlXPathEvaluatePredicateResult ()</h3><pre class="programlisting">int         xmlXPathEvaluatePredicateResult (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> res);</pre><p>
+Evaluate a predicate result for the current node.
+A PredicateExpr is evaluated by evaluating the Expr and converting
+the result to a boolean. If the result is a number, the result will
+be converted to true if the number is equal to the position of the
+context node in the context node list (as returned by the position
+function) and will be converted to false otherwise; if the result
+is not a number, then the result will be converted as if by a call
+to the boolean function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>res</tt></i> :</span></td><td>  the Predicate Expression evaluation result
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>1 if predicate is true, 0 otherwise
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterAllFunctions"></a>xmlXPathRegisterAllFunctions ()</h3><pre class="programlisting">void        xmlXPathRegisterAllFunctions    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
+Registers all default XPath functions in this context</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetMerge"></a>xmlXPathNodeSetMerge ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeSetMerge          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val1,
+                                             <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val2);</pre><p>
+Merges two nodesets, all nodes from <i><tt>val2</tt></i> are added to <i><tt>val1</tt></i>
+if <i><tt>val1</tt></i> is NULL, a new set is created and copied from <i><tt>val2</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val1</tt></i> :</span></td><td>  the first NodeSet or NULL
+</td></tr><tr><td><span class="term"><i><tt>val2</tt></i> :</span></td><td>  the second NodeSet
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td><i><tt>val1</tt></i> once extended or NULL in case of error.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetDel"></a>xmlXPathNodeSetDel ()</h3><pre class="programlisting">void        xmlXPathNodeSetDel              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
+Removes an xmlNodePtr from an existing NodeSet</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  an xmlNodePtr
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetRemove"></a>xmlXPathNodeSetRemove ()</h3><pre class="programlisting">void        xmlXPathNodeSetRemove           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
+                                             int val);</pre><p>
+Removes an entry from an existing NodeSet list.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
+</td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the index to remove
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewNodeSetList"></a>xmlXPathNewNodeSetList ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewNodeSetList    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);</pre><p>
+Create a new xmlXPathObjectPtr of type NodeSet and initialize
+it with the Nodeset <i><tt>val</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  an existing NodeSet
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapNodeSet"></a>xmlXPathWrapNodeSet ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapNodeSet       (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);</pre><p>
+Wrap the Nodeset <i><tt>val</tt></i> in a new xmlXPathObjectPtr</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the NodePtr value
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapExternal"></a>xmlXPathWrapExternal ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapExternal      (void *val);</pre><p>
+Wraps the <i><tt>val</tt></i> data into an XPath object.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the user data
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEqualValues"></a>xmlXPathEqualValues ()</h3><pre class="programlisting">int         xmlXPathEqualValues             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Implement the equal operation on XPath objects content: <i><tt>arg1</tt></i> == <i><tt>arg2</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 or 1 depending on the results of the test.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNotEqualValues"></a>xmlXPathNotEqualValues ()</h3><pre class="programlisting">int         xmlXPathNotEqualValues          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Implement the equal operation on XPath objects content: <i><tt>arg1</tt></i> == <i><tt>arg2</tt></i></p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 or 1 depending on the results of the test.
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCompareValues"></a>xmlXPathCompareValues ()</h3><pre class="programlisting">int         xmlXPathCompareValues           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int inf,
+                                             int strict);</pre><p>
+Implement the compare operation on XPath objects: 
+    <i><tt>arg1</tt></i> &lt; <i><tt>arg2</tt></i>    (1, 1, ...
+    <i><tt>arg1</tt></i> &lt;= <i><tt>arg2</tt></i>   (1, 0, ...
+    <i><tt>arg1</tt></i> &gt; <i><tt>arg2</tt></i>    (0, 1, ...
+    <i><tt>arg1</tt></i> &gt;= <i><tt>arg2</tt></i>   (0, 0, ...
+</p><p>
+When neither object to be compared is a node-set and the operator is
+&lt;=, &lt;, &gt;=, &gt;, then the objects are compared by converted both objects
+to numbers and comparing the numbers according to IEEE 754. The &lt;
+comparison will be true if and only if the first number is less than the
+second number. The &lt;= comparison will be true if and only if the first
+number is less than or equal to the second number. The &gt; comparison
+will be true if and only if the first number is greater than the second
+number. The &gt;= comparison will be true if and only if the first number
+is greater than or equal to the second number.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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"><span class="emphasis"><em>Returns</em></span> :</span></td><td>1 if the comparison succeeded, 0 if it failed
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathValueFlipSign"></a>xmlXPathValueFlipSign ()</h3><pre class="programlisting">void        xmlXPathValueFlipSign           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Implement the unary - operation on an XPath object
+The numeric operators convert their operands to numbers as if
+by calling the number function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathAddValues"></a>xmlXPathAddValues ()</h3><pre class="programlisting">void        xmlXPathAddValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</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><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubValues"></a>xmlXPathSubValues ()</h3><pre class="programlisting">void        xmlXPathSubValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Implement the subtraction operation on XPath objects:
+The numeric operators convert their operands to numbers as if
+by calling the number function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathMultValues"></a>xmlXPathMultValues ()</h3><pre class="programlisting">void        xmlXPathMultValues              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Implement the multiply operation on XPath objects:
+The numeric operators convert their operands to numbers as if
+by calling the number function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDivValues"></a>xmlXPathDivValues ()</h3><pre class="programlisting">void        xmlXPathDivValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Implement the div operation on XPath objects <i><tt>arg1</tt></i> / <i><tt>arg2</tt></i>:
+The numeric operators convert their operands to numbers as if
+by calling the number function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathModValues"></a>xmlXPathModValues ()</h3><pre class="programlisting">void        xmlXPathModValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
+Implement the mod operation on XPath objects: <i><tt>arg1</tt></i> / <i><tt>arg2</tt></i>
+The numeric operators convert their operands to numbers as if
+by calling the number function.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathIsNodeType"></a>xmlXPathIsNodeType ()</h3><pre class="programlisting">int         xmlXPathIsNodeType              (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);</pre><p>
+Is the name given a NodeType one.
+</p><p>
+ [38]   NodeType ::=   'comment'
+                   | 'text'
+                   | 'processing-instruction'
+                   | 'node'</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  a name string
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>1 if true 0 otherwise
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextSelf"></a>xmlXPathNextSelf ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextSelf                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;self&quot; direction
+The self axis contains just the context node itself</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextChild"></a>xmlXPathNextChild ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextChild               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;child&quot; direction
+The child axis contains the children of the context node in document order.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextDescendant"></a>xmlXPathNextDescendant ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextDescendant          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;descendant&quot; direction
+the descendant axis contains the descendants of the context node in document
+order; a descendant is a child or a child of a child and so on.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextDescendantOrSelf"></a>xmlXPathNextDescendantOrSelf ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextDescendantOrSelf    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;descendant-or-self&quot; direction
+the descendant-or-self axis contains the context node and the descendants
+of the context node in document order; thus the context node is the first
+node on the axis, and the first child of the context node is the second node
+on the axis</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextParent"></a>xmlXPathNextParent ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextParent              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;parent&quot; direction
+The parent axis contains the parent of the context node, if there is one.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextAncestorOrSelf"></a>xmlXPathNextAncestorOrSelf ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextAncestorOrSelf      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;ancestor-or-self&quot; direction
+he ancestor-or-self axis contains the context node and ancestors of
+the context node in reverse document order; thus the context node is
+the first node on the axis, and the context node's parent the second;
+parent here is defined the same as with the parent axis.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextFollowingSibling"></a>xmlXPathNextFollowingSibling ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextFollowingSibling    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;following-sibling&quot; direction
+The following-sibling axis contains the following siblings of the context
+node in document order.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextFollowing"></a>xmlXPathNextFollowing ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextFollowing           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;following&quot; direction
+The following axis contains all nodes in the same document as the context
+node that are after the context node in document order, excluding any
+descendants and excluding attribute nodes and namespace nodes; the nodes
+are ordered in document order</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextNamespace"></a>xmlXPathNextNamespace ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextNamespace           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;namespace&quot; direction
+the namespace axis contains the namespace nodes of the context node;
+the order of nodes on this axis is implementation-defined; the axis will
+be empty unless the context node is an element
+</p><p>
+We keep the XML namespace node at the end of the list.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current attribute in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextAttribute"></a>xmlXPathNextAttribute ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextAttribute           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;attribute&quot; direction
+TODO: support DTD inherited default attributes</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current attribute in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextPreceding"></a>xmlXPathNextPreceding ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextPreceding           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;preceding&quot; direction
+the preceding axis contains all nodes in the same document as the context
+node that are before the context node in document order, excluding any
+ancestors and excluding attribute nodes and namespace nodes; the nodes are
+ordered in reverse document order</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextAncestor"></a>xmlXPathNextAncestor ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextAncestor            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;ancestor&quot; direction
+the ancestor axis contains the ancestors of the context node; the ancestors
+of the context node consist of the parent of context node and the parent's
+parent and so on; the nodes are ordered in reverse document order; thus the
+parent is the first node on the axis, and the parent's parent is the second
+node on the axis</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextPrecedingSibling"></a>xmlXPathNextPrecedingSibling ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextPrecedingSibling    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
+Traversal function for the &quot;preceding-sibling&quot; direction
+The preceding-sibling axis contains the preceding siblings of the context
+node in reverse document order; the first preceding sibling is first on the
+axis; the sibling preceding that node is the second on the axis and so on.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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>cur</tt></i> :</span></td><td>  the current node in the traversal
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
+</td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLastFunction"></a>xmlXPathLastFunction ()</h3><pre class="programlisting">void        xmlXPathLastFunction            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="last">last</GTKDOCLINK>() XPath function
+   number <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="last">last</GTKDOCLINK>()
+The last function returns the number of nodes in the context node list.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPositionFunction"></a>xmlXPathPositionFunction ()</h3><pre class="programlisting">void        xmlXPathPositionFunction        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="position">position</GTKDOCLINK>() XPath function
+   number <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="position">position</GTKDOCLINK>()
+The position function returns the position of the context node in the
+context node list. The first position is 1, and so the last position
+will be equal to <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="last">last</GTKDOCLINK>().</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCountFunction"></a>xmlXPathCountFunction ()</h3><pre class="programlisting">void        xmlXPathCountFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="count">count</GTKDOCLINK>() XPath function
+   number count(node-set)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathIdFunction"></a>xmlXPathIdFunction ()</h3><pre class="programlisting">void        xmlXPathIdFunction              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="id">id</GTKDOCLINK>() XPath function
+   node-set id(object)
+The id function selects elements by their unique ID
+(see [5.2.1 Unique IDs]). When the argument to id is of type node-set,
+then the result is the union of the result of applying id to the
+string value of each of the nodes in the argument node-set. When the
+argument to id is of any other type, the argument is converted to a
+string as if by a call to the string function; the string is split
+into a whitespace-separated list of tokens (whitespace is any sequence
+of characters matching the production S); the result is a node-set
+containing the elements in the same document as the context node that
+have a unique ID equal to any of the tokens in the list.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLocalNameFunction"></a>xmlXPathLocalNameFunction ()</h3><pre class="programlisting">void        xmlXPathLocalNameFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the local-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="name">name</GTKDOCLINK>() XPath function
+   string local-name(node-set?)
+The local-name function returns a string containing the local part
+of the name of the node in the argument node-set that is first in
+document order. If the node-set is empty or the first node has no
+name, an empty string is returned. If the argument is omitted it
+defaults to the context node.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNamespaceURIFunction"></a>xmlXPathNamespaceURIFunction ()</h3><pre class="programlisting">void        xmlXPathNamespaceURIFunction    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the namespace-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="uri">uri</GTKDOCLINK>() XPath function
+   string namespace-uri(node-set?)
+The namespace-uri function returns a string containing the
+namespace URI of the expanded name of the node in the argument
+node-set that is first in document order. If the node-set is empty,
+the first node has no name, or the expanded name has no namespace
+URI, an empty string is returned. If the argument is omitted it
+defaults to the context node.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStringFunction"></a>xmlXPathStringFunction ()</h3><pre class="programlisting">void        xmlXPathStringFunction          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="string">string</GTKDOCLINK>() XPath function
+   string string(object?)
+he string function converts an object to a string as follows:
+   - A node-set is converted to a string by returning the value of
+     the node in the node-set that is first in document order.
+     If the node-set is empty, an empty string is returned.
+   - A number is converted to a string as follows
+     + NaN is converted to the string NaN 
+     + positive zero is converted to the string 0 
+     + negative zero is converted to the string 0 
+     + positive infinity is converted to the string Infinity 
+     + negative infinity is converted to the string -Infinity 
+     + if the number is an integer, the number is represented in
+       decimal form as a Number with no decimal point and no leading
+       zeros, preceded by a minus sign (-) if the number is negative
+     + otherwise, the number is represented in decimal form as a
+       Number including a decimal point with at least one digit
+       before the decimal point and at least one digit after the
+       decimal point, preceded by a minus sign (-) if the number
+       is negative; there must be no leading zeros before the decimal
+       point apart possibly from the one required digit immediately
+       before the decimal point; beyond the one required digit
+       after the decimal point there must be as many, but only as
+       many, more digits as are needed to uniquely distinguish the
+       number from all other IEEE 754 numeric values.
+   - The boolean false value is converted to the string false.
+     The boolean true value is converted to the string true.
+</p><p>
+If the argument is omitted, it defaults to a node-set with the
+context node as its only member.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStringLengthFunction"></a>xmlXPathStringLengthFunction ()</h3><pre class="programlisting">void        xmlXPathStringLengthFunction    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the string-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="length">length</GTKDOCLINK>() XPath function
+   number string-length(string?)
+The string-length returns the number of characters in the string
+(see [3.6 Strings]). If the argument is omitted, it defaults to
+the context node converted to a string, in other words the value
+of the context node.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathConcatFunction"></a>xmlXPathConcatFunction ()</h3><pre class="programlisting">void        xmlXPathConcatFunction          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="concat">concat</GTKDOCLINK>() XPath function
+   string concat(string, string, string*)
+The concat function returns the concatenation of its arguments.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathContainsFunction"></a>xmlXPathContainsFunction ()</h3><pre class="programlisting">void        xmlXPathContainsFunction        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="contains">contains</GTKDOCLINK>() 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><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStartsWithFunction"></a>xmlXPathStartsWithFunction ()</h3><pre class="programlisting">void        xmlXPathStartsWithFunction      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the starts-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="with">with</GTKDOCLINK>() XPath function
+   boolean starts-with(string, string)
+The starts-with function returns true if the first argument string
+starts with the second argument string, and otherwise returns false.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubstringFunction"></a>xmlXPathSubstringFunction ()</h3><pre class="programlisting">void        xmlXPathSubstringFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="substring">substring</GTKDOCLINK>() XPath function
+   string substring(string, number, number?)
+The substring function returns the substring of the first argument
+starting at the position specified in the second argument with
+length specified in the third argument. For example,
+substring(&quot;12345&quot;,2,3) returns &quot;234&quot;. If the third argument is not
+specified, it returns the substring starting at the position specified
+in the second argument and continuing to the end of the string. For
+example, substring(&quot;12345&quot;,2) returns &quot;2345&quot;.  More precisely, each
+character in the string (see [3.6 Strings]) is considered to have a
+numeric position: the position of the first character is 1, the position
+of the second character is 2 and so on. The returned substring contains
+those characters for which the position of the character is greater than
+or equal to the second argument and, if the third argument is specified,
+less than the sum of the second and third arguments; the comparisons
+and addition used for the above follow the standard IEEE 754 rules. Thus:
+ - substring(&quot;12345&quot;, 1.5, 2.6) returns &quot;234&quot; 
+ - substring(&quot;12345&quot;, 0, 3) returns &quot;12&quot; 
+ - substring(&quot;12345&quot;, 0 div 0, 3) returns &quot;&quot; 
+ - substring(&quot;12345&quot;, 1, 0 div 0) returns &quot;&quot; 
+ - substring(&quot;12345&quot;, -42, 1 div 0) returns &quot;12345&quot; 
+ - substring(&quot;12345&quot;, -1 div 0, 1 div 0) returns &quot;&quot;</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubstringBeforeFunction"></a>xmlXPathSubstringBeforeFunction ()</h3><pre class="programlisting">void        xmlXPathSubstringBeforeFunction (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the substring-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="before">before</GTKDOCLINK>() XPath function
+   string substring-before(string, string)
+The substring-before function returns the substring of the first
+argument string that precedes the first occurrence of the second
+argument string in the first argument string, or the empty string
+if the first argument string does not contain the second argument
+string. For example, substring-before(&quot;1999/04/01&quot;,&quot;/&quot;) returns 1999.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubstringAfterFunction"></a>xmlXPathSubstringAfterFunction ()</h3><pre class="programlisting">void        xmlXPathSubstringAfterFunction  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the substring-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="after">after</GTKDOCLINK>() XPath function
+   string substring-after(string, string)
+The substring-after function returns the substring of the first
+argument string that follows the first occurrence of the second
+argument string in the first argument string, or the empty stringi
+if the first argument string does not contain the second argument
+string. For example, substring-after(&quot;1999/04/01&quot;,&quot;/&quot;) returns 04/01,
+and substring-after(&quot;1999/04/01&quot;,&quot;19&quot;) returns 99/04/01.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNormalizeFunction"></a>xmlXPathNormalizeFunction ()</h3><pre class="programlisting">void        xmlXPathNormalizeFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the normalize-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="space">space</GTKDOCLINK>() XPath function
+   string normalize-space(string?)
+The normalize-space function returns the argument string with white
+space normalized by stripping leading and trailing whitespace
+and replacing sequences of whitespace characters by a single
+space. Whitespace characters are the same allowed by the S production
+in XML. If the argument is omitted, it defaults to the context
+node converted to a string, in other words the value of the context node.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTranslateFunction"></a>xmlXPathTranslateFunction ()</h3><pre class="programlisting">void        xmlXPathTranslateFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="translate">translate</GTKDOCLINK>() XPath function
+   string translate(string, string, string)
+The translate function returns the first argument string with
+occurrences of characters in the second argument string replaced
+by the character at the corresponding position in the third argument
+string. For example, translate(&quot;bar&quot;,&quot;abc&quot;,&quot;ABC&quot;) returns the string
+BAr. If there is a character in the second argument string with no
+character at a corresponding position in the third argument string
+(because the second argument string is longer than the third argument
+string), then occurrences of that character in the first argument
+string are removed. For example, translate(&quot;--aaa--&quot;,&quot;abc-&quot;,&quot;ABC&quot;)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNotFunction"></a>xmlXPathNotFunction ()</h3><pre class="programlisting">void        xmlXPathNotFunction             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="not">not</GTKDOCLINK>() XPath function
+   boolean not(boolean)
+The not function returns true if its argument is false,
+and false otherwise.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTrueFunction"></a>xmlXPathTrueFunction ()</h3><pre class="programlisting">void        xmlXPathTrueFunction            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="true">true</GTKDOCLINK>() XPath function
+   boolean <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="true">true</GTKDOCLINK>()</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFalseFunction"></a>xmlXPathFalseFunction ()</h3><pre class="programlisting">void        xmlXPathFalseFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="false">false</GTKDOCLINK>() XPath function
+   boolean <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="false">false</GTKDOCLINK>()</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLangFunction"></a>xmlXPathLangFunction ()</h3><pre class="programlisting">void        xmlXPathLangFunction            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="lang">lang</GTKDOCLINK>() XPath function
+   boolean lang(string)
+The lang function returns true or false depending on whether the
+language of the context node as specified by xml:lang attributes
+is the same as or is a sublanguage of the language specified by
+the argument string. The language of the context node is determined
+by the value of the xml:lang attribute on the context node, or, if
+the context node has no xml:lang attribute, by the value of the
+xml:lang attribute on the nearest ancestor of the context node that
+has an xml:lang attribute. If there is no such attribute, then lang</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNumberFunction"></a>xmlXPathNumberFunction ()</h3><pre class="programlisting">void        xmlXPathNumberFunction          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="number">number</GTKDOCLINK>() XPath function
+   number number(object?)</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSumFunction"></a>xmlXPathSumFunction ()</h3><pre class="programlisting">void        xmlXPathSumFunction             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="sum">sum</GTKDOCLINK>() XPath function
+   number sum(node-set)
+The sum function returns the sum of the values of the nodes in
+the argument node-set.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFloorFunction"></a>xmlXPathFloorFunction ()</h3><pre class="programlisting">void        xmlXPathFloorFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="floor">floor</GTKDOCLINK>() XPath function
+   number floor(number)
+The floor function returns the largest (closest to positive infinity)
+number that is not greater than the argument and that is an integer.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCeilingFunction"></a>xmlXPathCeilingFunction ()</h3><pre class="programlisting">void        xmlXPathCeilingFunction         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="ceiling">ceiling</GTKDOCLINK>() 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><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRoundFunction"></a>xmlXPathRoundFunction ()</h3><pre class="programlisting">void        xmlXPathRoundFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="round">round</GTKDOCLINK>() XPath function
+   number round(number)
+The round function returns the number that is closest to the
+argument and that is an integer. If there are two such numbers,
+then the one that is even is returned.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathBooleanFunction"></a>xmlXPathBooleanFunction ()</h3><pre class="programlisting">void        xmlXPathBooleanFunction         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
+                                             int nargs);</pre><p>
+Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="boolean">boolean</GTKDOCLINK>() XPath function
+   boolean boolean(object)
+he 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><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><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></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetFreeNs"></a>xmlXPathNodeSetFreeNs ()</h3><pre class="programlisting">void        xmlXPathNodeSetFreeNs           (<a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);</pre><p>
+Namespace node in libxml don't match the XPath semantic. In a node set
+the namespace nodes are duplicated and the next pointer is set to the
+parent node in the XPath semantic. Check if such a node need to be freed</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  the XPath namespace node found in a nodeset.
+</td></tr></tbody></table></div></div></div></div><table xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="libxml-xpath.html"><b>&lt;&lt; xpath</b></a></td><td align="right"><a accesskey="n" href="libxml-xpointer.html"><b>xpointer &gt;&gt;</b></a></td></tr></table></body></html>