libxml2使用

1.install 
  download url:
  cd libxml2-2.9.2
 ./autogen.sh  //the same with configure
  make && make install
2.example(get all content of an xml file)
  点击(此处)折叠或打开

xmlDocPtr doc = NULL;
  xmlNodePtr cur,cur_next;
  xmlChar *key;

  doc = xmlReadFile("normal.xml", "utf-8", XML_PARSE_RECOVER);
  if (doc == NULL)
  {
     fprintf(stderr,"Document not parsed successfully. \n");
     return 1;
  }
  cur = xmlDocGetRootElement(doc);
  if (cur == NULL)
  {
     fprintf(stderr,"empty document\n");
     xmlFreeDoc(doc);
     return 1;
  }

  while(NULL != cur)
  {
    /* get all content */
    if(0 == xmlChildElementCount(cur) && NULL != (key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1)))
      printf("%s:%s\n",cur->name,key);

    cur_next = xmlFirstElementChild(cur);
    if(NULL == cur_next)
      cur_next = xmlNextElementSibling(cur);

    while(NULL == cur_next)
    {
      cur = cur->parent;
      if(NULL == cur)
        break;
      cur_next = xmlNextElementSibling(cur);
    }

    cur = cur_next;
  }

  xmlFreeDoc(doc);

3.compile
 gcc -I /usr/local/include/libxml2/ -L /usr/local/lib -lxml2 t.c -o t -g