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+/*
+ * Summary: internal interfaces for XML Path Language implementation
+ * Description: internal interfaces for XML Path Language implementation
+ * used to build new modules on top of XPath like XPointer and
+ * XSLT
+ *
+ * Copy: See Copyright for the status of this software.
+ *
+ * Author: Daniel Veillard
+ */
+
+#ifndef __XML_XPATH_INTERNALS_H__
+#define __XML_XPATH_INTERNALS_H__
+
+#include <libxml/xmlversion.h>
+#include <libxml/xpath.h>
+
+#ifdef LIBXML_XPATH_ENABLED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/************************************************************************
+ * *
+ * Helpers *
+ * *
+ ************************************************************************/
+
+/*
+ * Many of these macros may later turn into functions. They
+ * shouldn't be used in #ifdef's preprocessor instructions.
+ */
+/**
+ * xmlXPathSetError:
+ * @ctxt: an XPath parser context
+ * @err: an xmlXPathError code
+ *
+ * Raises an error.
+ */
+#define xmlXPathSetError(ctxt, err) \
+ { xmlXPatherror((ctxt), __FILE__, __LINE__, (err)); \
+ if ((ctxt) != NULL) (ctxt)->error = (err); }
+
+/**
+ * xmlXPathSetArityError:
+ * @ctxt: an XPath parser context
+ *
+ * Raises an XPATH_INVALID_ARITY error.
+ */
+#define xmlXPathSetArityError(ctxt) \
+ xmlXPathSetError((ctxt), XPATH_INVALID_ARITY)
+
+/**
+ * xmlXPathSetTypeError:
+ * @ctxt: an XPath parser context
+ *
+ * Raises an XPATH_INVALID_TYPE error.
+ */
+#define xmlXPathSetTypeError(ctxt) \
+ xmlXPathSetError((ctxt), XPATH_INVALID_TYPE)
+
+/**
+ * xmlXPathGetError:
+ * @ctxt: an XPath parser context
+ *
+ * Get the error code of an XPath context.
+ *
+ * Returns the context error.
+ */
+#define xmlXPathGetError(ctxt) ((ctxt)->error)
+
+/**
+ * xmlXPathCheckError:
+ * @ctxt: an XPath parser context
+ *
+ * Check if an XPath error was raised.
+ *
+ * Returns true if an error has been raised, false otherwise.
+ */
+#define xmlXPathCheckError(ctxt) ((ctxt)->error != XPATH_EXPRESSION_OK)
+
+/**
+ * xmlXPathGetDocument:
+ * @ctxt: an XPath parser context
+ *
+ * Get the document of an XPath context.
+ *
+ * Returns the context document.
+ */
+#define xmlXPathGetDocument(ctxt) ((ctxt)->context->doc)
+
+/**
+ * xmlXPathGetContextNode:
+ * @ctxt: an XPath parser context
+ *
+ * Get the context node of an XPath context.
+ *
+ * Returns the context node.
+ */
+#define xmlXPathGetContextNode(ctxt) ((ctxt)->context->node)
+
+XMLPUBFUN int XMLCALL
+ xmlXPathPopBoolean (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN double XMLCALL
+ xmlXPathPopNumber (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN xmlChar * XMLCALL
+ xmlXPathPopString (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathPopNodeSet (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN void * XMLCALL
+ xmlXPathPopExternal (xmlXPathParserContextPtr ctxt);
+
+/**
+ * xmlXPathReturnBoolean:
+ * @ctxt: an XPath parser context
+ * @val: a boolean
+ *
+ * Pushes the boolean @val on the context stack.
+ */
+#define xmlXPathReturnBoolean(ctxt, val) \
+ valuePush((ctxt), xmlXPathNewBoolean(val))
+
+/**
+ * xmlXPathReturnTrue:
+ * @ctxt: an XPath parser context
+ *
+ * Pushes true on the context stack.
+ */
+#define xmlXPathReturnTrue(ctxt) xmlXPathReturnBoolean((ctxt), 1)
+
+/**
+ * xmlXPathReturnFalse:
+ * @ctxt: an XPath parser context
+ *
+ * Pushes false on the context stack.
+ */
+#define xmlXPathReturnFalse(ctxt) xmlXPathReturnBoolean((ctxt), 0)
+
+/**
+ * xmlXPathReturnNumber:
+ * @ctxt: an XPath parser context
+ * @val: a double
+ *
+ * Pushes the double @val on the context stack.
+ */
+#define xmlXPathReturnNumber(ctxt, val) \
+ valuePush((ctxt), xmlXPathNewFloat(val))
+
+/**
+ * xmlXPathReturnString:
+ * @ctxt: an XPath parser context
+ * @str: a string
+ *
+ * Pushes the string @str on the context stack.
+ */
+#define xmlXPathReturnString(ctxt, str) \
+ valuePush((ctxt), xmlXPathWrapString(str))
+
+/**
+ * xmlXPathReturnEmptyString:
+ * @ctxt: an XPath parser context
+ *
+ * Pushes an empty string on the stack.
+ */
+#define xmlXPathReturnEmptyString(ctxt) \
+ valuePush((ctxt), xmlXPathNewCString(""))
+
+/**
+ * xmlXPathReturnNodeSet:
+ * @ctxt: an XPath parser context
+ * @ns: a node-set
+ *
+ * Pushes the node-set @ns on the context stack.
+ */
+#define xmlXPathReturnNodeSet(ctxt, ns) \
+ valuePush((ctxt), xmlXPathWrapNodeSet(ns))
+
+/**
+ * xmlXPathReturnEmptyNodeSet:
+ * @ctxt: an XPath parser context
+ *
+ * Pushes an empty node-set on the context stack.
+ */
+#define xmlXPathReturnEmptyNodeSet(ctxt) \
+ valuePush((ctxt), xmlXPathNewNodeSet(NULL))
+
+/**
+ * xmlXPathReturnExternal:
+ * @ctxt: an XPath parser context
+ * @val: user data
+ *
+ * Pushes user data on the context stack.
+ */
+#define xmlXPathReturnExternal(ctxt, val) \
+ valuePush((ctxt), xmlXPathWrapExternal(val))
+
+/**
+ * xmlXPathStackIsNodeSet:
+ * @ctxt: an XPath parser context
+ *
+ * Check if the current value on the XPath stack is a node set or
+ * an XSLT value tree.
+ *
+ * Returns true if the current object on the stack is a node-set.
+ */
+#define xmlXPathStackIsNodeSet(ctxt) \
+ (((ctxt)->value != NULL) \
+ && (((ctxt)->value->type == XPATH_NODESET) \
+ || ((ctxt)->value->type == XPATH_XSLT_TREE)))
+
+/**
+ * xmlXPathStackIsExternal:
+ * @ctxt: an XPath parser context
+ *
+ * Checks if the current value on the XPath stack is an external
+ * object.
+ *
+ * Returns true if the current object on the stack is an external
+ * object.
+ */
+#define xmlXPathStackIsExternal(ctxt) \
+ ((ctxt->value != NULL) && (ctxt->value->type == XPATH_USERS))
+
+/**
+ * xmlXPathEmptyNodeSet:
+ * @ns: a node-set
+ *
+ * Empties a node-set.
+ */
+#define xmlXPathEmptyNodeSet(ns) \
+ { while ((ns)->nodeNr > 0) (ns)->nodeTab[(ns)->nodeNr--] = NULL; }
+
+/**
+ * CHECK_ERROR:
+ *
+ * Macro to return from the function if an XPath error was detected.
+ */
+#define CHECK_ERROR \
+ if (ctxt->error != XPATH_EXPRESSION_OK) return
+
+/**
+ * CHECK_ERROR0:
+ *
+ * Macro to return 0 from the function if an XPath error was detected.
+ */
+#define CHECK_ERROR0 \
+ if (ctxt->error != XPATH_EXPRESSION_OK) return(0)
+
+/**
+ * XP_ERROR:
+ * @X: the error code
+ *
+ * Macro to raise an XPath error and return.
+ */
+#define XP_ERROR(X) \
+ { xmlXPathErr(ctxt, X); return; }
+
+/**
+ * XP_ERROR0:
+ * @X: the error code
+ *
+ * Macro to raise an XPath error and return 0.
+ */
+#define XP_ERROR0(X) \
+ { xmlXPathErr(ctxt, X); return(0); }
+
+/**
+ * CHECK_TYPE:
+ * @typeval: the XPath type
+ *
+ * Macro to check that the value on top of the XPath stack is of a given
+ * type.
+ */
+#define CHECK_TYPE(typeval) \
+ if ((ctxt->value == NULL) || (ctxt->value->type != typeval)) \
+ XP_ERROR(XPATH_INVALID_TYPE)
+
+/**
+ * CHECK_TYPE0:
+ * @typeval: the XPath type
+ *
+ * Macro to check that the value on top of the XPath stack is of a given
+ * type. Return(0) in case of failure
+ */
+#define CHECK_TYPE0(typeval) \
+ if ((ctxt->value == NULL) || (ctxt->value->type != typeval)) \
+ XP_ERROR0(XPATH_INVALID_TYPE)
+
+/**
+ * CHECK_ARITY:
+ * @x: the number of expected args
+ *
+ * Macro to check that the number of args passed to an XPath function matches.
+ */
+#define CHECK_ARITY(x) \
+ if (ctxt == NULL) return; \
+ if (nargs != (x)) \
+ XP_ERROR(XPATH_INVALID_ARITY);
+
+/**
+ * CAST_TO_STRING:
+ *
+ * Macro to try to cast the value on the top of the XPath stack to a string.
+ */
+#define CAST_TO_STRING \
+ if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_STRING)) \
+ xmlXPathStringFunction(ctxt, 1);
+
+/**
+ * CAST_TO_NUMBER:
+ *
+ * Macro to try to cast the value on the top of the XPath stack to a number.
+ */
+#define CAST_TO_NUMBER \
+ if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_NUMBER)) \
+ xmlXPathNumberFunction(ctxt, 1);
+
+/**
+ * CAST_TO_BOOLEAN:
+ *
+ * Macro to try to cast the value on the top of the XPath stack to a boolean.
+ */
+#define CAST_TO_BOOLEAN \
+ if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_BOOLEAN)) \
+ xmlXPathBooleanFunction(ctxt, 1);
+
+/*
+ * Variable Lookup forwarding.
+ */
+
+XMLPUBFUN void XMLCALL
+ xmlXPathRegisterVariableLookup (xmlXPathContextPtr ctxt,
+ xmlXPathVariableLookupFunc f,
+ void *data);
+
+/*
+ * Function Lookup forwarding.
+ */
+
+XMLPUBFUN void XMLCALL
+ xmlXPathRegisterFuncLookup (xmlXPathContextPtr ctxt,
+ xmlXPathFuncLookupFunc f,
+ void *funcCtxt);
+
+/*
+ * Error reporting.
+ */
+XMLPUBFUN void XMLCALL
+ xmlXPatherror (xmlXPathParserContextPtr ctxt,
+ const char *file,
+ int line,
+ int no);
+
+XMLPUBFUN void XMLCALL
+ xmlXPathErr (xmlXPathParserContextPtr ctxt,
+ int error);
+
+#ifdef LIBXML_DEBUG_ENABLED
+XMLPUBFUN void XMLCALL
+ xmlXPathDebugDumpObject (FILE *output,
+ xmlXPathObjectPtr cur,
+ int depth);
+XMLPUBFUN void XMLCALL
+ xmlXPathDebugDumpCompExpr(FILE *output,
+ xmlXPathCompExprPtr comp,
+ int depth);
+#endif
+/**
+ * NodeSet handling.
+ */
+XMLPUBFUN int XMLCALL
+ xmlXPathNodeSetContains (xmlNodeSetPtr cur,
+ xmlNodePtr val);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathDifference (xmlNodeSetPtr nodes1,
+ xmlNodeSetPtr nodes2);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathIntersection (xmlNodeSetPtr nodes1,
+ xmlNodeSetPtr nodes2);
+
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathDistinctSorted (xmlNodeSetPtr nodes);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathDistinct (xmlNodeSetPtr nodes);
+
+XMLPUBFUN int XMLCALL
+ xmlXPathHasSameNodes (xmlNodeSetPtr nodes1,
+ xmlNodeSetPtr nodes2);
+
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathNodeLeadingSorted (xmlNodeSetPtr nodes,
+ xmlNodePtr node);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathLeadingSorted (xmlNodeSetPtr nodes1,
+ xmlNodeSetPtr nodes2);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathNodeLeading (xmlNodeSetPtr nodes,
+ xmlNodePtr node);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathLeading (xmlNodeSetPtr nodes1,
+ xmlNodeSetPtr nodes2);
+
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathNodeTrailingSorted (xmlNodeSetPtr nodes,
+ xmlNodePtr node);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathTrailingSorted (xmlNodeSetPtr nodes1,
+ xmlNodeSetPtr nodes2);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathNodeTrailing (xmlNodeSetPtr nodes,
+ xmlNodePtr node);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathTrailing (xmlNodeSetPtr nodes1,
+ xmlNodeSetPtr nodes2);
+
+
+/**
+ * Extending a context.
+ */
+
+XMLPUBFUN int XMLCALL
+ xmlXPathRegisterNs (xmlXPathContextPtr ctxt,
+ const xmlChar *prefix,
+ const xmlChar *ns_uri);
+XMLPUBFUN const xmlChar * XMLCALL
+ xmlXPathNsLookup (xmlXPathContextPtr ctxt,
+ const xmlChar *prefix);
+XMLPUBFUN void XMLCALL
+ xmlXPathRegisteredNsCleanup (xmlXPathContextPtr ctxt);
+
+XMLPUBFUN int XMLCALL
+ xmlXPathRegisterFunc (xmlXPathContextPtr ctxt,
+ const xmlChar *name,
+ xmlXPathFunction f);
+XMLPUBFUN int XMLCALL
+ xmlXPathRegisterFuncNS (xmlXPathContextPtr ctxt,
+ const xmlChar *name,
+ const xmlChar *ns_uri,
+ xmlXPathFunction f);
+XMLPUBFUN int XMLCALL
+ xmlXPathRegisterVariable (xmlXPathContextPtr ctxt,
+ const xmlChar *name,
+ xmlXPathObjectPtr value);
+XMLPUBFUN int XMLCALL
+ xmlXPathRegisterVariableNS (xmlXPathContextPtr ctxt,
+ const xmlChar *name,
+ const xmlChar *ns_uri,
+ xmlXPathObjectPtr value);
+XMLPUBFUN xmlXPathFunction XMLCALL
+ xmlXPathFunctionLookup (xmlXPathContextPtr ctxt,
+ const xmlChar *name);
+XMLPUBFUN xmlXPathFunction XMLCALL
+ xmlXPathFunctionLookupNS (xmlXPathContextPtr ctxt,
+ const xmlChar *name,
+ const xmlChar *ns_uri);
+XMLPUBFUN void XMLCALL
+ xmlXPathRegisteredFuncsCleanup (xmlXPathContextPtr ctxt);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathVariableLookup (xmlXPathContextPtr ctxt,
+ const xmlChar *name);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathVariableLookupNS (xmlXPathContextPtr ctxt,
+ const xmlChar *name,
+ const xmlChar *ns_uri);
+XMLPUBFUN void XMLCALL
+ xmlXPathRegisteredVariablesCleanup(xmlXPathContextPtr ctxt);
+
+/**
+ * Utilities to extend XPath.
+ */
+XMLPUBFUN xmlXPathParserContextPtr XMLCALL
+ xmlXPathNewParserContext (const xmlChar *str,
+ xmlXPathContextPtr ctxt);
+XMLPUBFUN void XMLCALL
+ xmlXPathFreeParserContext (xmlXPathParserContextPtr ctxt);
+
+/* TODO: remap to xmlXPathValuePop and Push. */
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ valuePop (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN int XMLCALL
+ valuePush (xmlXPathParserContextPtr ctxt,
+ xmlXPathObjectPtr value);
+
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathNewString (const xmlChar *val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathNewCString (const char *val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathWrapString (xmlChar *val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathWrapCString (char * val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathNewFloat (double val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathNewBoolean (int val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathNewNodeSet (xmlNodePtr val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathNewValueTree (xmlNodePtr val);
+XMLPUBFUN void XMLCALL
+ xmlXPathNodeSetAdd (xmlNodeSetPtr cur,
+ xmlNodePtr val);
+XMLPUBFUN void XMLCALL
+ xmlXPathNodeSetAddUnique (xmlNodeSetPtr cur,
+ xmlNodePtr val);
+XMLPUBFUN void XMLCALL
+ xmlXPathNodeSetAddNs (xmlNodeSetPtr cur,
+ xmlNodePtr node,
+ xmlNsPtr ns);
+XMLPUBFUN void XMLCALL
+ xmlXPathNodeSetSort (xmlNodeSetPtr set);
+
+XMLPUBFUN void XMLCALL
+ xmlXPathRoot (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN void XMLCALL
+ xmlXPathEvalExpr (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN xmlChar * XMLCALL
+ xmlXPathParseName (xmlXPathParserContextPtr ctxt);
+XMLPUBFUN xmlChar * XMLCALL
+ xmlXPathParseNCName (xmlXPathParserContextPtr ctxt);
+
+/*
+ * Existing functions.
+ */
+XMLPUBFUN double XMLCALL
+ xmlXPathStringEvalNumber (const xmlChar *str);
+XMLPUBFUN int XMLCALL
+ xmlXPathEvaluatePredicateResult (xmlXPathParserContextPtr ctxt,
+ xmlXPathObjectPtr res);
+XMLPUBFUN void XMLCALL
+ xmlXPathRegisterAllFunctions (xmlXPathContextPtr ctxt);
+XMLPUBFUN xmlNodeSetPtr XMLCALL
+ xmlXPathNodeSetMerge (xmlNodeSetPtr val1,
+ xmlNodeSetPtr val2);
+XMLPUBFUN void XMLCALL
+ xmlXPathNodeSetDel (xmlNodeSetPtr cur,
+ xmlNodePtr val);
+XMLPUBFUN void XMLCALL
+ xmlXPathNodeSetRemove (xmlNodeSetPtr cur,
+ int val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathNewNodeSetList (xmlNodeSetPtr val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathWrapNodeSet (xmlNodeSetPtr val);
+XMLPUBFUN xmlXPathObjectPtr XMLCALL
+ xmlXPathWrapExternal (void *val);
+
+XMLPUBFUN int XMLCALL xmlXPathEqualValues(xmlXPathParserContextPtr ctxt);
+XMLPUBFUN int XMLCALL xmlXPathNotEqualValues(xmlXPathParserContextPtr ctxt);
+XMLPUBFUN int XMLCALL xmlXPathCompareValues(xmlXPathParserContextPtr ctxt, int inf, int strict);
+XMLPUBFUN void XMLCALL xmlXPathValueFlipSign(xmlXPathParserContextPtr ctxt);
+XMLPUBFUN void XMLCALL xmlXPathAddValues(xmlXPathParserContextPtr ctxt);
+XMLPUBFUN void XMLCALL xmlXPathSubValues(xmlXPathParserContextPtr ctxt);
+XMLPUBFUN void XMLCALL xmlXPathMultValues(xmlXPathParserContextPtr ctxt);
+XMLPUBFUN void XMLCALL xmlXPathDivValues(xmlXPathParserContextPtr ctxt);
+XMLPUBFUN void XMLCALL xmlXPathModValues(xmlXPathParserContextPtr ctxt);
+
+XMLPUBFUN int XMLCALL xmlXPathIsNodeType(const xmlChar *name);
+
+/*
+ * Some of the axis navigation routines.
+ */
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextSelf(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextChild(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextDescendant(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextDescendantOrSelf(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextParent(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextAncestorOrSelf(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextFollowingSibling(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextFollowing(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextNamespace(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextAttribute(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextPreceding(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextAncestor(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextPrecedingSibling(xmlXPathParserContextPtr ctxt,
+ xmlNodePtr cur);
+/*
+ * The official core of XPath functions.
+ */
+XMLPUBFUN void XMLCALL xmlXPathLastFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathPositionFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathCountFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathIdFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathLocalNameFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathNamespaceURIFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathStringFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathStringLengthFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathConcatFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathContainsFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathStartsWithFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathSubstringFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathSubstringBeforeFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathSubstringAfterFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathNormalizeFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathTranslateFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathNotFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathTrueFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathFalseFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathLangFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathNumberFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathSumFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathFloorFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathCeilingFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathRoundFunction(xmlXPathParserContextPtr ctxt, int nargs);
+XMLPUBFUN void XMLCALL xmlXPathBooleanFunction(xmlXPathParserContextPtr ctxt, int nargs);
+
+/**
+ * Really internal functions
+ */
+XMLPUBFUN void XMLCALL xmlXPathNodeSetFreeNs(xmlNsPtr ns);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LIBXML_XPATH_ENABLED */
+#endif /* ! __XML_XPATH_INTERNALS_H__ */