<![CDATA[#include <libxml/parser.h>#include <libxml/xpath.h> xmlDocPtrgetdoc (char *docname) { xmlDocPtr doc; doc = xmlParseFile(docname); if (doc == NULL ) { fprintf(stderr,"Document not parsed successfully. \n"); return NULL; } return doc;} xmlXPathObjectPtrgetnodeset (xmlDocPtr doc, xmlChar *xpath){ xmlXPathContextPtr context; xmlXPathObjectPtr result; context = xmlXPathNewContext(doc); if (context == NULL) { printf("Error in xmlXPathNewContext\n"); return NULL; } result = xmlXPathEvalExpression(xpath, context); xmlXPathFreeContext(context); if (result == NULL) { printf("Error in xmlXPathEvalExpression\n"); return NULL; } if(xmlXPathNodeSetIsEmpty(result->nodesetval)){ xmlXPathFreeObject(result); printf("No result\n"); return NULL; } return result;}intmain(int argc, char **argv) { char *docname; xmlDocPtr doc; xmlChar *xpath = (xmlChar*) "//keyword"; xmlNodeSetPtr nodeset; xmlXPathObjectPtr result; int i; xmlChar *keyword; if (argc <= 1) { printf("Usage: %s docname\n", argv[0]); return(0); } docname = argv[1]; doc = getdoc(docname); result = getnodeset (doc, xpath); if (result) { nodeset = result->nodesetval; for (i=0; i < nodeset->nodeNr; i++) { keyword = xmlNodeListGetString(doc, nodeset->nodeTab[i]->xmlChildrenNode, 1); printf("keyword: %s\n", keyword); xmlFree(keyword); } xmlXPathFreeObject (result); } xmlFreeDoc(doc); xmlCleanupParser(); return (1);}]]>
<![CDATA[
#include <libxml/parser.h>
#include <libxml/xpath.h>
xmlDocPtr
getdoc (char *docname) {
xmlDocPtr doc;
doc = xmlParseFile(docname);
if (doc == NULL ) {
fprintf(stderr,"Document not parsed successfully. \n");
return NULL;
}
return doc;
}
xmlXPathObjectPtr
getnodeset (xmlDocPtr doc, xmlChar *xpath){
xmlXPathContextPtr context;
xmlXPathObjectPtr result;
context = xmlXPathNewContext(doc);
if (context == NULL) {
printf("Error in xmlXPathNewContext\n");
return NULL;
}
result = xmlXPathEvalExpression(xpath, context);
xmlXPathFreeContext(context);
if (result == NULL) {
printf("Error in xmlXPathEvalExpression\n");
return NULL;
}
if(xmlXPathNodeSetIsEmpty(result->nodesetval)){
xmlXPathFreeObject(result);
printf("No result\n");
return NULL;
}
return result;
}
int
main(int argc, char **argv) {
char *docname;
xmlDocPtr doc;
xmlChar *xpath = (xmlChar*) "//keyword";
xmlNodeSetPtr nodeset;
xmlXPathObjectPtr result;
int i;
xmlChar *keyword;
if (argc <= 1) {
printf("Usage: %s docname\n", argv[0]);
return(0);
}
docname = argv[1];
doc = getdoc(docname);
result = getnodeset (doc, xpath);
if (result) {
nodeset = result->nodesetval;
for (i=0; i < nodeset->nodeNr; i++) {
keyword = xmlNodeListGetString(doc, nodeset->nodeTab[i]->xmlChildrenNode, 1);
printf("keyword: %s\n", keyword);
xmlFree(keyword);
}
xmlXPathFreeObject (result);
}
xmlFreeDoc(doc);
xmlCleanupParser();
return (1);
}
]]>