1/*
2 * Summary: internal interfaces for XML Path Language implementation
3 * Description: internal interfaces for XML Path Language implementation
4 *              used to build new modules on top of XPath like XPointer and
5 *              XSLT
6 *
7 * Copy: See Copyright for the status of this software.
8 *
9 * Author: Daniel Veillard
10 */
11
12#ifndef __XML_XPATH_INTERNALS_H__
13#define __XML_XPATH_INTERNALS_H__
14
15#include <libxml/xmlversion.h>
16#include <libxml/xpath.h>
17
18#ifdef LIBXML_XPATH_ENABLED
19
20#ifdef __cplusplus
21extern "C" {
22#endif
23
24/************************************************************************
25 *									*
26 *			Helpers						*
27 *									*
28 ************************************************************************/
29
30/*
31 * Many of these macros may later turn into functions. They
32 * shouldn't be used in #ifdef's preprocessor instructions.
33 */
34/**
35 * xmlXPathSetError:
36 * @ctxt:  an XPath parser context
37 * @err:  an xmlXPathError code
38 *
39 * Raises an error.
40 */
41#define xmlXPathSetError(ctxt, err)					\
42    { xmlXPatherror((ctxt), __FILE__, __LINE__, (err));			\
43      if ((ctxt) != NULL) (ctxt)->error = (err); }
44
45/**
46 * xmlXPathSetArityError:
47 * @ctxt:  an XPath parser context
48 *
49 * Raises an XPATH_INVALID_ARITY error.
50 */
51#define xmlXPathSetArityError(ctxt)					\
52    xmlXPathSetError((ctxt), XPATH_INVALID_ARITY)
53
54/**
55 * xmlXPathSetTypeError:
56 * @ctxt:  an XPath parser context
57 *
58 * Raises an XPATH_INVALID_TYPE error.
59 */
60#define xmlXPathSetTypeError(ctxt)					\
61    xmlXPathSetError((ctxt), XPATH_INVALID_TYPE)
62
63/**
64 * xmlXPathGetError:
65 * @ctxt:  an XPath parser context
66 *
67 * Get the error code of an XPath context.
68 *
69 * Returns the context error.
70 */
71#define xmlXPathGetError(ctxt)	  ((ctxt)->error)
72
73/**
74 * xmlXPathCheckError:
75 * @ctxt:  an XPath parser context
76 *
77 * Check if an XPath error was raised.
78 *
79 * Returns true if an error has been raised, false otherwise.
80 */
81#define xmlXPathCheckError(ctxt)  ((ctxt)->error != XPATH_EXPRESSION_OK)
82
83/**
84 * xmlXPathGetDocument:
85 * @ctxt:  an XPath parser context
86 *
87 * Get the document of an XPath context.
88 *
89 * Returns the context document.
90 */
91#define xmlXPathGetDocument(ctxt)	((ctxt)->context->doc)
92
93/**
94 * xmlXPathGetContextNode:
95 * @ctxt: an XPath parser context
96 *
97 * Get the context node of an XPath context.
98 *
99 * Returns the context node.
100 */
101#define xmlXPathGetContextNode(ctxt)	((ctxt)->context->node)
102
103XMLPUBFUN int XMLCALL
104		xmlXPathPopBoolean	(xmlXPathParserContextPtr ctxt);
105XMLPUBFUN double XMLCALL
106		xmlXPathPopNumber	(xmlXPathParserContextPtr ctxt);
107XMLPUBFUN xmlChar * XMLCALL
108		xmlXPathPopString	(xmlXPathParserContextPtr ctxt);
109XMLPUBFUN xmlNodeSetPtr XMLCALL
110		xmlXPathPopNodeSet	(xmlXPathParserContextPtr ctxt);
111XMLPUBFUN void * XMLCALL
112		xmlXPathPopExternal	(xmlXPathParserContextPtr ctxt);
113
114/**
115 * xmlXPathReturnBoolean:
116 * @ctxt:  an XPath parser context
117 * @val:  a boolean
118 *
119 * Pushes the boolean @val on the context stack.
120 */
121#define xmlXPathReturnBoolean(ctxt, val)				\
122    valuePush((ctxt), xmlXPathNewBoolean(val))
123
124/**
125 * xmlXPathReturnTrue:
126 * @ctxt:  an XPath parser context
127 *
128 * Pushes true on the context stack.
129 */
130#define xmlXPathReturnTrue(ctxt)   xmlXPathReturnBoolean((ctxt), 1)
131
132/**
133 * xmlXPathReturnFalse:
134 * @ctxt:  an XPath parser context
135 *
136 * Pushes false on the context stack.
137 */
138#define xmlXPathReturnFalse(ctxt)  xmlXPathReturnBoolean((ctxt), 0)
139
140/**
141 * xmlXPathReturnNumber:
142 * @ctxt:  an XPath parser context
143 * @val:  a double
144 *
145 * Pushes the double @val on the context stack.
146 */
147#define xmlXPathReturnNumber(ctxt, val)					\
148    valuePush((ctxt), xmlXPathNewFloat(val))
149
150/**
151 * xmlXPathReturnString:
152 * @ctxt:  an XPath parser context
153 * @str:  a string
154 *
155 * Pushes the string @str on the context stack.
156 */
157#define xmlXPathReturnString(ctxt, str)					\
158    valuePush((ctxt), xmlXPathWrapString(str))
159
160/**
161 * xmlXPathReturnEmptyString:
162 * @ctxt:  an XPath parser context
163 *
164 * Pushes an empty string on the stack.
165 */
166#define xmlXPathReturnEmptyString(ctxt)					\
167    valuePush((ctxt), xmlXPathNewCString(""))
168
169/**
170 * xmlXPathReturnNodeSet:
171 * @ctxt:  an XPath parser context
172 * @ns:  a node-set
173 *
174 * Pushes the node-set @ns on the context stack.
175 */
176#define xmlXPathReturnNodeSet(ctxt, ns)					\
177    valuePush((ctxt), xmlXPathWrapNodeSet(ns))
178
179/**
180 * xmlXPathReturnEmptyNodeSet:
181 * @ctxt:  an XPath parser context
182 *
183 * Pushes an empty node-set on the context stack.
184 */
185#define xmlXPathReturnEmptyNodeSet(ctxt)				\
186    valuePush((ctxt), xmlXPathNewNodeSet(NULL))
187
188/**
189 * xmlXPathReturnExternal:
190 * @ctxt:  an XPath parser context
191 * @val:  user data
192 *
193 * Pushes user data on the context stack.
194 */
195#define xmlXPathReturnExternal(ctxt, val)				\
196    valuePush((ctxt), xmlXPathWrapExternal(val))
197
198/**
199 * xmlXPathStackIsNodeSet:
200 * @ctxt: an XPath parser context
201 *
202 * Check if the current value on the XPath stack is a node set or
203 * an XSLT value tree.
204 *
205 * Returns true if the current object on the stack is a node-set.
206 */
207#define xmlXPathStackIsNodeSet(ctxt)					\
208    (((ctxt)->value != NULL)						\
209     && (((ctxt)->value->type == XPATH_NODESET)				\
210         || ((ctxt)->value->type == XPATH_XSLT_TREE)))
211
212/**
213 * xmlXPathStackIsExternal:
214 * @ctxt: an XPath parser context
215 *
216 * Checks if the current value on the XPath stack is an external
217 * object.
218 *
219 * Returns true if the current object on the stack is an external
220 * object.
221 */
222#define xmlXPathStackIsExternal(ctxt)					\
223	((ctxt->value != NULL) && (ctxt->value->type == XPATH_USERS))
224
225/**
226 * xmlXPathEmptyNodeSet:
227 * @ns:  a node-set
228 *
229 * Empties a node-set.
230 */
231#define xmlXPathEmptyNodeSet(ns)					\
232    { while ((ns)->nodeNr > 0) (ns)->nodeTab[(ns)->nodeNr--] = NULL; }
233
234/**
235 * CHECK_ERROR:
236 *
237 * Macro to return from the function if an XPath error was detected.
238 */
239#define CHECK_ERROR							\
240    if (ctxt->error != XPATH_EXPRESSION_OK) return
241
242/**
243 * CHECK_ERROR0:
244 *
245 * Macro to return 0 from the function if an XPath error was detected.
246 */
247#define CHECK_ERROR0							\
248    if (ctxt->error != XPATH_EXPRESSION_OK) return(0)
249
250/**
251 * XP_ERROR:
252 * @X:  the error code
253 *
254 * Macro to raise an XPath error and return.
255 */
256#define XP_ERROR(X)							\
257    { xmlXPathErr(ctxt, X); return; }
258
259/**
260 * XP_ERROR0:
261 * @X:  the error code
262 *
263 * Macro to raise an XPath error and return 0.
264 */
265#define XP_ERROR0(X)							\
266    { xmlXPathErr(ctxt, X); return(0); }
267
268/**
269 * CHECK_TYPE:
270 * @typeval:  the XPath type
271 *
272 * Macro to check that the value on top of the XPath stack is of a given
273 * type.
274 */
275#define CHECK_TYPE(typeval)						\
276    if ((ctxt->value == NULL) || (ctxt->value->type != typeval))	\
277        XP_ERROR(XPATH_INVALID_TYPE)
278
279/**
280 * CHECK_TYPE0:
281 * @typeval:  the XPath type
282 *
283 * Macro to check that the value on top of the XPath stack is of a given
284 * type. Return(0) in case of failure
285 */
286#define CHECK_TYPE0(typeval)						\
287    if ((ctxt->value == NULL) || (ctxt->value->type != typeval))	\
288        XP_ERROR0(XPATH_INVALID_TYPE)
289
290/**
291 * CHECK_ARITY:
292 * @x:  the number of expected args
293 *
294 * Macro to check that the number of args passed to an XPath function matches.
295 */
296#define CHECK_ARITY(x)							\
297    if (ctxt == NULL) return;						\
298    if (nargs != (x))							\
299        XP_ERROR(XPATH_INVALID_ARITY);					\
300    if (ctxt->valueNr < ctxt->valueFrame + (x))				\
301        XP_ERROR(XPATH_STACK_ERROR);
302
303/**
304 * CAST_TO_STRING:
305 *
306 * Macro to try to cast the value on the top of the XPath stack to a string.
307 */
308#define CAST_TO_STRING							\
309    if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_STRING))	\
310        xmlXPathStringFunction(ctxt, 1);
311
312/**
313 * CAST_TO_NUMBER:
314 *
315 * Macro to try to cast the value on the top of the XPath stack to a number.
316 */
317#define CAST_TO_NUMBER							\
318    if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_NUMBER))	\
319        xmlXPathNumberFunction(ctxt, 1);
320
321/**
322 * CAST_TO_BOOLEAN:
323 *
324 * Macro to try to cast the value on the top of the XPath stack to a boolean.
325 */
326#define CAST_TO_BOOLEAN							\
327    if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_BOOLEAN))	\
328        xmlXPathBooleanFunction(ctxt, 1);
329
330/*
331 * Variable Lookup forwarding.
332 */
333
334XMLPUBFUN void XMLCALL
335	xmlXPathRegisterVariableLookup	(xmlXPathContextPtr ctxt,
336					 xmlXPathVariableLookupFunc f,
337					 void *data);
338
339/*
340 * Function Lookup forwarding.
341 */
342
343XMLPUBFUN void XMLCALL
344	    xmlXPathRegisterFuncLookup	(xmlXPathContextPtr ctxt,
345					 xmlXPathFuncLookupFunc f,
346					 void *funcCtxt);
347
348/*
349 * Error reporting.
350 */
351XMLPUBFUN void XMLCALL
352		xmlXPatherror	(xmlXPathParserContextPtr ctxt,
353				 const char *file,
354				 int line,
355				 int no);
356
357XMLPUBFUN void XMLCALL
358		xmlXPathErr	(xmlXPathParserContextPtr ctxt,
359				 int error);
360
361#ifdef LIBXML_DEBUG_ENABLED
362XMLPUBFUN void XMLCALL
363		xmlXPathDebugDumpObject	(FILE *output,
364					 xmlXPathObjectPtr cur,
365					 int depth);
366XMLPUBFUN void XMLCALL
367	    xmlXPathDebugDumpCompExpr(FILE *output,
368					 xmlXPathCompExprPtr comp,
369					 int depth);
370#endif
371/**
372 * NodeSet handling.
373 */
374XMLPUBFUN int XMLCALL
375		xmlXPathNodeSetContains		(xmlNodeSetPtr cur,
376						 xmlNodePtr val);
377XMLPUBFUN xmlNodeSetPtr XMLCALL
378		xmlXPathDifference		(xmlNodeSetPtr nodes1,
379						 xmlNodeSetPtr nodes2);
380XMLPUBFUN xmlNodeSetPtr XMLCALL
381		xmlXPathIntersection		(xmlNodeSetPtr nodes1,
382						 xmlNodeSetPtr nodes2);
383
384XMLPUBFUN xmlNodeSetPtr XMLCALL
385		xmlXPathDistinctSorted		(xmlNodeSetPtr nodes);
386XMLPUBFUN xmlNodeSetPtr XMLCALL
387		xmlXPathDistinct		(xmlNodeSetPtr nodes);
388
389XMLPUBFUN int XMLCALL
390		xmlXPathHasSameNodes		(xmlNodeSetPtr nodes1,
391						 xmlNodeSetPtr nodes2);
392
393XMLPUBFUN xmlNodeSetPtr XMLCALL
394		xmlXPathNodeLeadingSorted	(xmlNodeSetPtr nodes,
395						 xmlNodePtr node);
396XMLPUBFUN xmlNodeSetPtr XMLCALL
397		xmlXPathLeadingSorted		(xmlNodeSetPtr nodes1,
398						 xmlNodeSetPtr nodes2);
399XMLPUBFUN xmlNodeSetPtr XMLCALL
400		xmlXPathNodeLeading		(xmlNodeSetPtr nodes,
401						 xmlNodePtr node);
402XMLPUBFUN xmlNodeSetPtr XMLCALL
403		xmlXPathLeading			(xmlNodeSetPtr nodes1,
404						 xmlNodeSetPtr nodes2);
405
406XMLPUBFUN xmlNodeSetPtr XMLCALL
407		xmlXPathNodeTrailingSorted	(xmlNodeSetPtr nodes,
408						 xmlNodePtr node);
409XMLPUBFUN xmlNodeSetPtr XMLCALL
410		xmlXPathTrailingSorted		(xmlNodeSetPtr nodes1,
411						 xmlNodeSetPtr nodes2);
412XMLPUBFUN xmlNodeSetPtr XMLCALL
413		xmlXPathNodeTrailing		(xmlNodeSetPtr nodes,
414						 xmlNodePtr node);
415XMLPUBFUN xmlNodeSetPtr XMLCALL
416		xmlXPathTrailing		(xmlNodeSetPtr nodes1,
417						 xmlNodeSetPtr nodes2);
418
419
420/**
421 * Extending a context.
422 */
423
424XMLPUBFUN int XMLCALL
425		xmlXPathRegisterNs		(xmlXPathContextPtr ctxt,
426						 const xmlChar *prefix,
427						 const xmlChar *ns_uri);
428XMLPUBFUN const xmlChar * XMLCALL
429		xmlXPathNsLookup		(xmlXPathContextPtr ctxt,
430						 const xmlChar *prefix);
431XMLPUBFUN void XMLCALL
432		xmlXPathRegisteredNsCleanup	(xmlXPathContextPtr ctxt);
433
434XMLPUBFUN int XMLCALL
435		xmlXPathRegisterFunc		(xmlXPathContextPtr ctxt,
436						 const xmlChar *name,
437						 xmlXPathFunction f);
438XMLPUBFUN int XMLCALL
439		xmlXPathRegisterFuncNS		(xmlXPathContextPtr ctxt,
440						 const xmlChar *name,
441						 const xmlChar *ns_uri,
442						 xmlXPathFunction f);
443XMLPUBFUN int XMLCALL
444		xmlXPathRegisterVariable	(xmlXPathContextPtr ctxt,
445						 const xmlChar *name,
446						 xmlXPathObjectPtr value);
447XMLPUBFUN int XMLCALL
448		xmlXPathRegisterVariableNS	(xmlXPathContextPtr ctxt,
449						 const xmlChar *name,
450						 const xmlChar *ns_uri,
451						 xmlXPathObjectPtr value);
452XMLPUBFUN xmlXPathFunction XMLCALL
453		xmlXPathFunctionLookup		(xmlXPathContextPtr ctxt,
454						 const xmlChar *name);
455XMLPUBFUN xmlXPathFunction XMLCALL
456		xmlXPathFunctionLookupNS	(xmlXPathContextPtr ctxt,
457						 const xmlChar *name,
458						 const xmlChar *ns_uri);
459XMLPUBFUN void XMLCALL
460		xmlXPathRegisteredFuncsCleanup	(xmlXPathContextPtr ctxt);
461XMLPUBFUN xmlXPathObjectPtr XMLCALL
462		xmlXPathVariableLookup		(xmlXPathContextPtr ctxt,
463						 const xmlChar *name);
464XMLPUBFUN xmlXPathObjectPtr XMLCALL
465		xmlXPathVariableLookupNS	(xmlXPathContextPtr ctxt,
466						 const xmlChar *name,
467						 const xmlChar *ns_uri);
468XMLPUBFUN void XMLCALL
469		xmlXPathRegisteredVariablesCleanup(xmlXPathContextPtr ctxt);
470
471/**
472 * Utilities to extend XPath.
473 */
474XMLPUBFUN xmlXPathParserContextPtr XMLCALL
475		  xmlXPathNewParserContext	(const xmlChar *str,
476						 xmlXPathContextPtr ctxt);
477XMLPUBFUN void XMLCALL
478		xmlXPathFreeParserContext	(xmlXPathParserContextPtr ctxt);
479
480/* TODO: remap to xmlXPathValuePop and Push. */
481XMLPUBFUN xmlXPathObjectPtr XMLCALL
482		valuePop			(xmlXPathParserContextPtr ctxt);
483XMLPUBFUN int XMLCALL
484		valuePush			(xmlXPathParserContextPtr ctxt,
485						 xmlXPathObjectPtr value);
486
487XMLPUBFUN xmlXPathObjectPtr XMLCALL
488		xmlXPathNewString		(const xmlChar *val);
489XMLPUBFUN xmlXPathObjectPtr XMLCALL
490		xmlXPathNewCString		(const char *val);
491XMLPUBFUN xmlXPathObjectPtr XMLCALL
492		xmlXPathWrapString		(xmlChar *val);
493XMLPUBFUN xmlXPathObjectPtr XMLCALL
494		xmlXPathWrapCString		(char * val);
495XMLPUBFUN xmlXPathObjectPtr XMLCALL
496		xmlXPathNewFloat		(double val);
497XMLPUBFUN xmlXPathObjectPtr XMLCALL
498		xmlXPathNewBoolean		(int val);
499XMLPUBFUN xmlXPathObjectPtr XMLCALL
500		xmlXPathNewNodeSet		(xmlNodePtr val);
501XMLPUBFUN xmlXPathObjectPtr XMLCALL
502		xmlXPathNewValueTree		(xmlNodePtr val);
503XMLPUBFUN int XMLCALL
504		xmlXPathNodeSetAdd		(xmlNodeSetPtr cur,
505						 xmlNodePtr val);
506XMLPUBFUN int XMLCALL
507		xmlXPathNodeSetAddUnique	(xmlNodeSetPtr cur,
508						 xmlNodePtr val);
509XMLPUBFUN int XMLCALL
510		xmlXPathNodeSetAddNs		(xmlNodeSetPtr cur,
511						 xmlNodePtr node,
512						 xmlNsPtr ns);
513XMLPUBFUN void XMLCALL
514		xmlXPathNodeSetSort		(xmlNodeSetPtr set);
515
516XMLPUBFUN void XMLCALL
517		xmlXPathRoot			(xmlXPathParserContextPtr ctxt);
518XMLPUBFUN void XMLCALL
519		xmlXPathEvalExpr		(xmlXPathParserContextPtr ctxt);
520XMLPUBFUN xmlChar * XMLCALL
521		xmlXPathParseName		(xmlXPathParserContextPtr ctxt);
522XMLPUBFUN xmlChar * XMLCALL
523		xmlXPathParseNCName		(xmlXPathParserContextPtr ctxt);
524
525/*
526 * Existing functions.
527 */
528XMLPUBFUN double XMLCALL
529		xmlXPathStringEvalNumber	(const xmlChar *str);
530XMLPUBFUN int XMLCALL
531		xmlXPathEvaluatePredicateResult (xmlXPathParserContextPtr ctxt,
532						 xmlXPathObjectPtr res);
533XMLPUBFUN void XMLCALL
534		xmlXPathRegisterAllFunctions	(xmlXPathContextPtr ctxt);
535XMLPUBFUN xmlNodeSetPtr XMLCALL
536		xmlXPathNodeSetMerge		(xmlNodeSetPtr val1,
537						 xmlNodeSetPtr val2);
538XMLPUBFUN void XMLCALL
539		xmlXPathNodeSetDel		(xmlNodeSetPtr cur,
540						 xmlNodePtr val);
541XMLPUBFUN void XMLCALL
542		xmlXPathNodeSetRemove		(xmlNodeSetPtr cur,
543						 int val);
544XMLPUBFUN xmlXPathObjectPtr XMLCALL
545		xmlXPathNewNodeSetList		(xmlNodeSetPtr val);
546XMLPUBFUN xmlXPathObjectPtr XMLCALL
547		xmlXPathWrapNodeSet		(xmlNodeSetPtr val);
548XMLPUBFUN xmlXPathObjectPtr XMLCALL
549		xmlXPathWrapExternal		(void *val);
550
551XMLPUBFUN int XMLCALL xmlXPathEqualValues(xmlXPathParserContextPtr ctxt);
552XMLPUBFUN int XMLCALL xmlXPathNotEqualValues(xmlXPathParserContextPtr ctxt);
553XMLPUBFUN int XMLCALL xmlXPathCompareValues(xmlXPathParserContextPtr ctxt, int inf, int strict);
554XMLPUBFUN void XMLCALL xmlXPathValueFlipSign(xmlXPathParserContextPtr ctxt);
555XMLPUBFUN void XMLCALL xmlXPathAddValues(xmlXPathParserContextPtr ctxt);
556XMLPUBFUN void XMLCALL xmlXPathSubValues(xmlXPathParserContextPtr ctxt);
557XMLPUBFUN void XMLCALL xmlXPathMultValues(xmlXPathParserContextPtr ctxt);
558XMLPUBFUN void XMLCALL xmlXPathDivValues(xmlXPathParserContextPtr ctxt);
559XMLPUBFUN void XMLCALL xmlXPathModValues(xmlXPathParserContextPtr ctxt);
560
561XMLPUBFUN int XMLCALL xmlXPathIsNodeType(const xmlChar *name);
562
563/*
564 * Some of the axis navigation routines.
565 */
566XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextSelf(xmlXPathParserContextPtr ctxt,
567			xmlNodePtr cur);
568XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextChild(xmlXPathParserContextPtr ctxt,
569			xmlNodePtr cur);
570XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextDescendant(xmlXPathParserContextPtr ctxt,
571			xmlNodePtr cur);
572XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextDescendantOrSelf(xmlXPathParserContextPtr ctxt,
573			xmlNodePtr cur);
574XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextParent(xmlXPathParserContextPtr ctxt,
575			xmlNodePtr cur);
576XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextAncestorOrSelf(xmlXPathParserContextPtr ctxt,
577			xmlNodePtr cur);
578XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextFollowingSibling(xmlXPathParserContextPtr ctxt,
579			xmlNodePtr cur);
580XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextFollowing(xmlXPathParserContextPtr ctxt,
581			xmlNodePtr cur);
582XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextNamespace(xmlXPathParserContextPtr ctxt,
583			xmlNodePtr cur);
584XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextAttribute(xmlXPathParserContextPtr ctxt,
585			xmlNodePtr cur);
586XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextPreceding(xmlXPathParserContextPtr ctxt,
587			xmlNodePtr cur);
588XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextAncestor(xmlXPathParserContextPtr ctxt,
589			xmlNodePtr cur);
590XMLPUBFUN xmlNodePtr XMLCALL xmlXPathNextPrecedingSibling(xmlXPathParserContextPtr ctxt,
591			xmlNodePtr cur);
592/*
593 * The official core of XPath functions.
594 */
595XMLPUBFUN void XMLCALL xmlXPathLastFunction(xmlXPathParserContextPtr ctxt, int nargs);
596XMLPUBFUN void XMLCALL xmlXPathPositionFunction(xmlXPathParserContextPtr ctxt, int nargs);
597XMLPUBFUN void XMLCALL xmlXPathCountFunction(xmlXPathParserContextPtr ctxt, int nargs);
598XMLPUBFUN void XMLCALL xmlXPathIdFunction(xmlXPathParserContextPtr ctxt, int nargs);
599XMLPUBFUN void XMLCALL xmlXPathLocalNameFunction(xmlXPathParserContextPtr ctxt, int nargs);
600XMLPUBFUN void XMLCALL xmlXPathNamespaceURIFunction(xmlXPathParserContextPtr ctxt, int nargs);
601XMLPUBFUN void XMLCALL xmlXPathStringFunction(xmlXPathParserContextPtr ctxt, int nargs);
602XMLPUBFUN void XMLCALL xmlXPathStringLengthFunction(xmlXPathParserContextPtr ctxt, int nargs);
603XMLPUBFUN void XMLCALL xmlXPathConcatFunction(xmlXPathParserContextPtr ctxt, int nargs);
604XMLPUBFUN void XMLCALL xmlXPathContainsFunction(xmlXPathParserContextPtr ctxt, int nargs);
605XMLPUBFUN void XMLCALL xmlXPathStartsWithFunction(xmlXPathParserContextPtr ctxt, int nargs);
606XMLPUBFUN void XMLCALL xmlXPathSubstringFunction(xmlXPathParserContextPtr ctxt, int nargs);
607XMLPUBFUN void XMLCALL xmlXPathSubstringBeforeFunction(xmlXPathParserContextPtr ctxt, int nargs);
608XMLPUBFUN void XMLCALL xmlXPathSubstringAfterFunction(xmlXPathParserContextPtr ctxt, int nargs);
609XMLPUBFUN void XMLCALL xmlXPathNormalizeFunction(xmlXPathParserContextPtr ctxt, int nargs);
610XMLPUBFUN void XMLCALL xmlXPathTranslateFunction(xmlXPathParserContextPtr ctxt, int nargs);
611XMLPUBFUN void XMLCALL xmlXPathNotFunction(xmlXPathParserContextPtr ctxt, int nargs);
612XMLPUBFUN void XMLCALL xmlXPathTrueFunction(xmlXPathParserContextPtr ctxt, int nargs);
613XMLPUBFUN void XMLCALL xmlXPathFalseFunction(xmlXPathParserContextPtr ctxt, int nargs);
614XMLPUBFUN void XMLCALL xmlXPathLangFunction(xmlXPathParserContextPtr ctxt, int nargs);
615XMLPUBFUN void XMLCALL xmlXPathNumberFunction(xmlXPathParserContextPtr ctxt, int nargs);
616XMLPUBFUN void XMLCALL xmlXPathSumFunction(xmlXPathParserContextPtr ctxt, int nargs);
617XMLPUBFUN void XMLCALL xmlXPathFloorFunction(xmlXPathParserContextPtr ctxt, int nargs);
618XMLPUBFUN void XMLCALL xmlXPathCeilingFunction(xmlXPathParserContextPtr ctxt, int nargs);
619XMLPUBFUN void XMLCALL xmlXPathRoundFunction(xmlXPathParserContextPtr ctxt, int nargs);
620XMLPUBFUN void XMLCALL xmlXPathBooleanFunction(xmlXPathParserContextPtr ctxt, int nargs);
621
622/**
623 * Really internal functions
624 */
625XMLPUBFUN void XMLCALL xmlXPathNodeSetFreeNs(xmlNsPtr ns);
626
627#ifdef __cplusplus
628}
629#endif
630
631#endif /* LIBXML_XPATH_ENABLED */
632#endif /* ! __XML_XPATH_INTERNALS_H__ */
633