//made by davidsu33 //boost.property_tree是一个保存了多个属性值的树形数据结构 //boost.property_tree可以解析xml ini json和info四种格式的文本 #include <boost/property_tree/ptree.hpp> #include <boost/property_tree/xml_parser.hpp> #include <boost/typeof/typeof.hpp> #include <iostream> #include <string> #include <cassert> using namespace std; void putline(const char * str) { cout<<str<<endl; } void putline(const std::string& str) { cout<<str<<endl; } void parse_xml() { std::string filename = "./conf.xml"; typedef boost::property_tree::ptree PTree; PTree pt; boost::property_tree::read_xml(filename, pt); string theme = pt.get<string>("conf.theme"); int guiID = pt.get<int>("conf.gui"); //int id = pt.get_value<int>(); assert(guiID == 1); //不存在属性返回默认值 int def = pt.get<int>("conf.no", 100000); assert(def = 100000); BOOST_AUTO(childs2, pt.get_child("conf.urls")); PTree childs = pt.get_child("conf.urls"); //??? //int count = pt.count("urls"); //assert(count == 3); //读取多子节点的数据 BOOST_AUTO(it, childs.begin()); BOOST_AUTO(iend, childs.end()); for (; it != iend; ++it) { //迭代器指向ptree的value_type, //它的second成员是子节点自身 //cout<<it->second.get_value<string>()<<endl; //等价于 cout<<it->second.data()<<endl; } //读取XML的属性,不支持声明的读取 //string decl = pt.get<string>(""); //读取XML声明 BOOST_ASSERT(pt.get<string>("conf.gui.<xmlattr>.lib") == "QT"); BOOST_ASSERT(pt.get<int>("conf.theme.<xmlattr>.id") == 1002); BOOST_ASSERT(pt.get<string>("conf.<xmlcomment>") == "this is conf comment"); //貌似不支持CDATA,测试未通过 //std::string xmltext = pt.get<string>("conf.<xmltext>"); //BOOST_ASSERT(pt.get<string>("conf.<xmltext>") == "字符数据-character data"); } int _tmain(int argc, _TCHAR* argv[]) { parse_xml(); getchar(); return 0; }
时间: 2024-10-13 17:13:17