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#ifndef XMLUTIL_H_
#define XMLUTIL_H_
#include <libxml/xmlstring.h>
#include <libxml/tree.h>
#include <inttypes.h>
char *getTextFromPath(xmlDocPtr doc, char *xpath);
char createXmlDoc(xmlDocPtr *doc, xmlNodePtr* root, char* rootName);
// Two macros to iterate over a node list
#define FOR_EACH_NODE(_doc, _path, _node) do { \
xmlXPathContextPtr _makro_xpathCtx = xmlXPathNewContext(_doc); \
if (_makro_xpathCtx) { \
xmlXPathObjectPtr _makro_xpathObj = xmlXPathEvalExpression(BAD_CAST _path, _makro_xpathCtx); \
if (_makro_xpathObj) { \
int _makro_i_; \
if (_makro_xpathObj->nodesetval) for (_makro_i_ = 0; _makro_i_ < _makro_xpathObj->nodesetval->nodeNr; ++_makro_i_) \
{ _node = _makro_xpathObj->nodesetval->nodeTab[_makro_i_];
#define END_FOR_EACH \
} } \
xmlXPathFreeObject(_makro_xpathObj); \
} \
xmlXPathFreeContext(_makro_xpathCtx); \
} while(0)
// Two macros to deal with temporary pointers
#define NUM_POINTERS_IN_LIST 20
#define NEW_POINTERLIST \
void *_makro_ptrlist[NUM_POINTERS_IN_LIST]; \
int _makro_usedcount = 0
#define FREE_POINTERLIST do { \
int _makro_i_; \
for (_makro_i_ = 0; _makro_i_ < _makro_usedcount; ++_makro_i_) { \
xmlFree(_makro_ptrlist[_makro_i_]); \
} } while(0)
// Macro to get a node property with automatic pointer handling (see two macros above)
#define XML_GETPROP(_node, _name) (char*)(_makro_ptrlist[(_makro_usedcount >= NUM_POINTERS_IN_LIST ? 0 : _makro_usedcount++)] = xmlGetNoNsProp(_node, BAD_CAST _name))
// Inline function to print a numeric value to a char buffer and add as property
static inline void xmlAddDecimalProp(int64_t value, xmlNodePtr node, char* name)
{
char strbuffer[100];
sprintf(strbuffer, "%" PRId64, value);
xmlNewProp(node, BAD_CAST name, BAD_CAST strbuffer);
}
#endif
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