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libxml2/xpathInternals.h
Daniel Veillard 56a4cb8c4d Huge cleanup, I switched to compile with 
-Wall -g -O -ansi -pedantic -W -Wunused -Wimplicit
-Wreturn-type -Wswitch -Wcomment -Wtrigraphs -Wformat
-Wchar-subscripts -Wuninitialized -Wparentheses -Wshadow
-Wpointer-arith -Wcast-align -Wwrite-strings -Waggregate-return
-Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline
- HTMLparser.[ch] HTMLtree.c SAX.c debugXML.c encoding.[ch]
  encoding.h entities.c error.c list.[ch] nanoftp.c
  nanohttp.c parser.[ch] parserInternals.[ch] testHTML.c
  testSAX.c testURI.c testXPath.c tree.[ch] uri.c
  valid.[ch] xinclude.c xmlIO.[ch] xmllint.c xmlmemory.c
  xpath.c xpathInternals.h xpointer.[ch] example/gjobread.c:
  Cleanup, staticfied a number of non-exported functions,
  detected and cleaned up a dozen of problem found this way,
  avoided a lot of public function name/typedef/system names clashes
- doc/xml.html: updated
- configure.in: switched private flags to the really pedantic ones.
Daniel
2001-03-24 17:00:36 +00:00

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/*
* xpath.c: internal interfaces for XML Path Language implementation
* used to build new modules on top of XPath
*
* See COPYRIGHT for the status of this software
*
* Author: Daniel.Veillard@w3.org
*/
#ifndef __XML_XPATH_INTERNALS_H__
#define __XML_XPATH_INTERNALS_H__
#include <libxml/xpath.h>
#ifdef __cplusplus
extern "C" {
#endif
/************************************************************************
* *
* Helpers *
* *
************************************************************************/
#define CHECK_ERROR \
if (ctxt->error != XPATH_EXPRESSION_OK) return
#define CHECK_ERROR0 \
if (ctxt->error != XPATH_EXPRESSION_OK) return(0)
#define XP_ERROR(X) \
{ xmlXPatherror(ctxt, __FILE__, __LINE__, X); \
ctxt->error = (X); return; }
#define XP_ERROR0(X) \
{ xmlXPatherror(ctxt, __FILE__, __LINE__, X); \
ctxt->error = (X); return(0); }
#define CHECK_TYPE(typeval) \
if ((ctxt->value == NULL) || (ctxt->value->type != typeval)) \
XP_ERROR(XPATH_INVALID_TYPE)
#define CHECK_ARITY(x) \
if (nargs != (x)) \
XP_ERROR(XPATH_INVALID_ARITY);
#define CAST_TO_STRING \
if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_STRING)) \
xmlXPathStringFunction(ctxt, 1);
#define CAST_TO_NUMBER \
if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_NUMBER)) \
xmlXPathNumberFunction(ctxt, 1);
#define CAST_TO_BOOLEAN \
if ((ctxt->value != NULL) && (ctxt->value->type != XPATH_BOOLEAN)) \
xmlXPathBooleanFunction(ctxt, 1);
/*
* Varibale Lookup forwarding
*/
typedef xmlXPathObjectPtr
(*xmlXPathVariableLookupFunc) (void *ctxt,
const xmlChar *name,
const xmlChar *ns_uri);
void xmlXPathRegisterVariableLookup (xmlXPathContextPtr ctxt,
xmlXPathVariableLookupFunc f,
void *varCtxt);
/*
* Error reporting
*/
void xmlXPatherror (xmlXPathParserContextPtr ctxt,
const char *file,
int line,
int no);
void xmlXPathDebugDumpObject (FILE *output,
xmlXPathObjectPtr cur,
int depth);
void xmlXPathDebugDumpCompExpr(FILE *output,
xmlXPathCompExprPtr comp,
int depth);
/**
* Extending a context
*/
int xmlXPathRegisterNs (xmlXPathContextPtr ctxt,
const xmlChar *prefix,
const xmlChar *ns_uri);
const xmlChar * xmlXPathNsLookup (xmlXPathContextPtr ctxt,
const xmlChar *ns_uri);
void xmlXPathRegisteredNsCleanup (xmlXPathContextPtr ctxt);
int xmlXPathRegisterFunc (xmlXPathContextPtr ctxt,
const xmlChar *name,
xmlXPathFunction f);
int xmlXPathRegisterFuncNS (xmlXPathContextPtr ctxt,
const xmlChar *name,
const xmlChar *ns_uri,
xmlXPathFunction f);
int xmlXPathRegisterVariable (xmlXPathContextPtr ctxt,
const xmlChar *name,
xmlXPathObjectPtr value);
int xmlXPathRegisterVariableNS (xmlXPathContextPtr ctxt,
const xmlChar *name,
const xmlChar *ns_uri,
xmlXPathObjectPtr value);
xmlXPathFunction xmlXPathFunctionLookup (xmlXPathContextPtr ctxt,
const xmlChar *name);
xmlXPathFunction xmlXPathFunctionLookupNS (xmlXPathContextPtr ctxt,
const xmlChar *name,
const xmlChar *ns_uri);
void xmlXPathRegisteredFuncsCleanup(xmlXPathContextPtr ctxt);
xmlXPathObjectPtr xmlXPathVariableLookup (xmlXPathContextPtr ctxt,
const xmlChar *name);
xmlXPathObjectPtr xmlXPathVariableLookupNS (xmlXPathContextPtr ctxt,
const xmlChar *name,
const xmlChar *ns_uri);
void xmlXPathRegisteredVariablesCleanup(xmlXPathContextPtr ctxt);
/**
* Utilities to extend XPath
*/
xmlXPathParserContextPtr
xmlXPathNewParserContext (const xmlChar *str,
xmlXPathContextPtr ctxt);
void xmlXPathFreeParserContext (xmlXPathParserContextPtr ctxt);
/* TODO: remap to xmlXPathValuePop and Push */
xmlXPathObjectPtr valuePop (xmlXPathParserContextPtr ctxt);
int valuePush (xmlXPathParserContextPtr ctxt,
xmlXPathObjectPtr value);
xmlXPathObjectPtr xmlXPathNewString (const xmlChar *val);
xmlXPathObjectPtr xmlXPathNewCString (const char *val);
xmlXPathObjectPtr xmlXPathNewFloat (double val);
xmlXPathObjectPtr xmlXPathNewBoolean (int val);
xmlXPathObjectPtr xmlXPathNewNodeSet (xmlNodePtr val);
xmlXPathObjectPtr xmlXPathNewValueTree (xmlNodePtr val);
void xmlXPathNodeSetAdd (xmlNodeSetPtr cur,
xmlNodePtr val);
void xmlXPathNodeSetAddUnique (xmlNodeSetPtr cur,
xmlNodePtr val);
void xmlXPathNodeSetSort (xmlNodeSetPtr set);
void xmlXPathIdFunction (xmlXPathParserContextPtr ctxt,
int nargs);
void xmlXPathRoot (xmlXPathParserContextPtr ctxt);
void xmlXPathEvalExpr (xmlXPathParserContextPtr ctxt);
xmlChar * xmlXPathParseName (xmlXPathParserContextPtr ctxt);
xmlChar * xmlXPathParseNCName (xmlXPathParserContextPtr ctxt);
/*
* Debug
*/
#ifdef LIBXML_DEBUG_ENABLED
double xmlXPathStringEvalNumber(const xmlChar *str);
void xmlXPathDebugDumpObject(FILE *output, xmlXPathObjectPtr cur, int depth);
#endif
/*
* Existing functions
*/
int xmlXPathEvaluatePredicateResult(xmlXPathParserContextPtr ctxt,
xmlXPathObjectPtr res);
void xmlXPathInit(void);
void xmlXPathStringFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathRegisterAllFunctions(xmlXPathContextPtr ctxt);
xmlNodeSetPtr xmlXPathNodeSetCreate(xmlNodePtr val);
void xmlXPathNodeSetAdd(xmlNodeSetPtr cur, xmlNodePtr val);
xmlNodeSetPtr xmlXPathNodeSetMerge(xmlNodeSetPtr val1, xmlNodeSetPtr val2);
void xmlXPathNodeSetDel(xmlNodeSetPtr cur, xmlNodePtr val);
void xmlXPathNodeSetRemove(xmlNodeSetPtr cur, int val);
void xmlXPathFreeNodeSet(xmlNodeSetPtr obj);
xmlXPathObjectPtr xmlXPathNewNodeSet(xmlNodePtr val);
xmlXPathObjectPtr xmlXPathNewNodeSetList(xmlNodeSetPtr val);
xmlXPathObjectPtr xmlXPathWrapNodeSet(xmlNodeSetPtr val);
void xmlXPathFreeNodeSetList(xmlXPathObjectPtr obj);
xmlXPathObjectPtr xmlXPathNewFloat(double val);
xmlXPathObjectPtr xmlXPathNewBoolean(int val);
xmlXPathObjectPtr xmlXPathNewString(const xmlChar *val);
xmlXPathObjectPtr xmlXPathNewCString(const char *val);
void xmlXPathFreeObject(xmlXPathObjectPtr obj);
xmlXPathContextPtr xmlXPathNewContext(xmlDocPtr doc);
void xmlXPathFreeContext(xmlXPathContextPtr ctxt);
int xmlXPathEqualValues(xmlXPathParserContextPtr ctxt);
int xmlXPathCompareValues(xmlXPathParserContextPtr ctxt, int inf, int strict);
void xmlXPathValueFlipSign(xmlXPathParserContextPtr ctxt);
void xmlXPathAddValues(xmlXPathParserContextPtr ctxt);
void xmlXPathSubValues(xmlXPathParserContextPtr ctxt);
void xmlXPathMultValues(xmlXPathParserContextPtr ctxt);
void xmlXPathDivValues(xmlXPathParserContextPtr ctxt);
void xmlXPathModValues(xmlXPathParserContextPtr ctxt);
int xmlXPathIsNodeType(const xmlChar *name);
/*
* Some of the axis navigation routines
*/
xmlNodePtr xmlXPathNextSelf(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextChild(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextDescendant(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextDescendantOrSelf(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextParent(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextAncestorOrSelf(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextFollowingSibling(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextFollowing(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextNamespace(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextAttribute(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextPreceding(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextAncestor(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
xmlNodePtr xmlXPathNextPrecedingSibling(xmlXPathParserContextPtr ctxt,
xmlNodePtr cur);
/*
* The official core of XPath functions
*/
void xmlXPathRoot(xmlXPathParserContextPtr ctxt);
void xmlXPathLastFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathPositionFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathCountFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathIdFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathLocalNameFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathNamespaceURIFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathStringFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathStringLengthFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathConcatFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathContainsFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathStartsWithFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathSubstringFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathSubstringBeforeFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathSubstringAfterFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathNormalizeFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathTranslateFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathNotFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathTrueFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathFalseFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathLangFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathNumberFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathSumFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathFloorFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathCeilingFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathRoundFunction(xmlXPathParserContextPtr ctxt, int nargs);
void xmlXPathBooleanFunction(xmlXPathParserContextPtr ctxt, int nargs);
#ifdef __cplusplus
}
#endif
#endif /* ! __XML_XPATH_INTERNALS_H__ */
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