acl/lib_acl_cpp/include/acl_cpp/stdlib/xml.hpp

#pragma once
#include "../acl_cpp_define.hpp"
#include <vector>
#include <list>
#include "dbuf_pool.hpp"
#include "string.hpp"
#include "pipe_stream.hpp"

struct ACL_TOKEN;
struct ACL_ITER;

/**
 * <EFBFBD><EFBFBD> ACL <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> C++ <EFBFBD>û<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̫ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD>
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>ʹ<EFBFBD>ø<EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD>ҷdz<EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> ACL <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACL <EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD>
 * <EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܻ<EFBFBD><EFBFBD><EFBFBD>΢Ӱ<EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>΢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */

namespace acl {

class xml;
class xml_node;
class istream;

class ACL_CPP_API xml_attr : public dbuf_obj
{
public:
	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>᷵<EFBFBD>ؿ<EFBFBD>ָ<EFBFBD>룬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 *  <EFBFBD>п<EFBFBD><EFBFBD><EFBFBD>Ϊ "\0"
	 */
	virtual const char* get_name(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>᷵<EFBFBD>ؿ<EFBFBD>ָ<EFBFBD>룬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 *  <EFBFBD>п<EFBFBD><EFBFBD><EFBFBD>Ϊ "\0"
	 */
	virtual const char* get_value(void) const = 0;

protected:
	friend class xml_node;

	xml_attr(xml_node* node) : node_(node) {}
	virtual ~xml_attr(void) {}

	xml_node* node_;
};

class ACL_CPP_API xml_node : public dbuf_obj
{
public:
	/**
	 * ȡ<EFBFBD>ñ<EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD>ı<EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؿգ<EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD>ǩ xxxx<EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>жϷ<EFBFBD><EFBFBD><EFBFBD>ֵ
	 */
	virtual const char* tag_name(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD> ID <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><EFBFBD>򷵻ؿ<EFBFBD>ָ<EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD> ID <EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD>Ӧ<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>򷵻ؿ<EFBFBD>
	 */
	virtual const char* id(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD>ؿ<EFBFBD>˵<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const char* text(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؿ<EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const char* attr_value(const char* name) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؿ<EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	const char* operator[](const char* name) const;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>
	 * @return {const xml_attr*} <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ
	 *  <EFBFBD>ýڵ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const xml_attr* first_attr(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>
	 * @return {const xml_attr*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const xml_attr* next_attr(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param value {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {xml_node&}
	 */
	virtual xml_node& add_attr(const char* name, const char* value) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param n {char} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {xml_node&}
	 */
	xml_node& add_attr(const char* name, char n);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param n {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {xml_node&}
	 */
	xml_node& add_attr(const char* name, int n);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param n {size_t} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {xml_node&}
	 */
	xml_node& add_attr(const char* name, size_t n);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param n {acl_int64} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {xml_node&}
	 */
#if defined(_WIN32) || defined(_WIN64)
	xml_node& add_attr(const char* name, __int64 n);
#else
	xml_node& add_attr(const char* name, long long int n);
#endif

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param str {const char*} <EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param append {bool} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ʱ<EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD>׷<EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ׷<EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD>ýڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׷<EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>򸲸<EFBFBD>
	 * @return {xml_node&}
	 */
	virtual xml_node& set_text(const char* str, bool append = false) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ㣬ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ýڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param in {istream&} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param off {size_t} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD>ʼλ<EFBFBD><EFBFBD>
	 * @param len {size_t} Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 0 ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&}
	 */
	virtual xml_node& set_text(istream& in, size_t off = 0,
		size_t len = 0) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param number {long long int} 64 λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&}
	 */
#if defined(_WIN32) || defined(_WIN64)
	xml_node& set_text(__int64 number);
#else
	xml_node& set_text(long long int number);
#endif

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param child {xml_node*} <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param return_child {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&} return_child Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD>򷵻ر<EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual xml_node& add_child(xml_node* child,
		bool return_child = false) = 0;
	
	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param child {xml_node&} <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param return_child {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&} return_child Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD>򷵻ر<EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	xml_node& add_child(xml_node& child, bool return_child = false);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param tag {const char* tag} <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @param return_child {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param str {const char*} <EFBFBD>ı<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&} return_child Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD>򷵻ر<EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	xml_node& add_child(const char* tag, bool return_child = false,
		const char* str = NULL);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param tag {const char* tag} <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @param txt {long long int} <EFBFBD>ڵ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
	 * @param return_child {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&} return_child Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD>򷵻ر<EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	xml_node& add_child(const char* tag, const char* txt,
		bool return_child = false);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param tag {const char* tag} <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @param number {long long int} 64 λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param return_child {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&} return_child Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD>򷵻ر<EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
#if defined(_WIN32) || defined(_WIN64)
	xml_node& add_child(const char* tag, __int64 number,
		bool return_child = false);
#else
	xml_node& add_child(const char* tag, long long int number,
		bool return_child = false);
#endif

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
	 * @param tag {const char* tag} <EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @param in {istream&} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param off {size_t} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD>ʼλ<EFBFBD><EFBFBD>
	 * @param len {size_t} Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 0 ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param return_child {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&} return_child Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD>򷵻ر<EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	xml_node& add_child(const char* tag, istream& in,
		size_t off = 0, size_t len = 0, bool return_child = false);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&}
	 */
	virtual xml_node& get_parent(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>
	 * @param node {xml_node*} <EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>
	 * @return {xml_node&}
	 */
	virtual xml_node& set_parent(xml_node* node) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ㼰<EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD>룬<EFBFBD><EFBFBD><EFBFBD>ڴ潫<EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳһ<EFBFBD>ͷ<EFBFBD>
	 * @return {int} <EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD>ͷŵĽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual int detach(void) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD>ĵ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ӽڵ㣬<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node*} <EFBFBD><EFBFBD><EFBFBD>ؿձ<EFBFBD>ʾû<EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD>
	 */
	virtual xml_node* first_child(void) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD>
	 * @return {xml_node*} <EFBFBD><EFBFBD><EFBFBD>ؿձ<EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual xml_node* next_child(void) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD> XML <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {int}
	 */
	virtual int depth(void) const = 0;

	/**
	 * <EFBFBD>жϵ<EFBFBD>ǰ<EFBFBD>ڵ<EFBFBD><EFBFBD>Ƿ<EFBFBD>Ϊ xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> root <EFBFBD>ڵ<EFBFBD>
	 * @return {bool}
	 */
	virtual bool is_root(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ӽڵ<EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>
	 * @return {int} <EFBFBD><EFBFBD>Զ >= 0
	 */
	virtual int children_count(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD>ᶯ̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD>ʱ xml_node <EFBFBD><EFBFBD><EFBFBD>󣬵<EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * first_child/next_child <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD> xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>󽫲<EFBFBD><EFBFBD>ٿ<EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	void clear(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml&}
	 */
	xml& get_xml(void) const;

protected:
	friend class xml;
	friend class dbuf_guard;

	/**
	 * xml <EFBFBD>ڵ㹹<EFBFBD>캯<EFBFBD><EFBFBD>
	 * @param xml_ptr {xml*} xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬷ǿ<EFBFBD>
	 */
	xml_node(xml* xml_ptr);

	/**
	 * Ҫ<EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual ~xml_node(void);

protected:
	xml* xml_;
	std::vector<xml_node*> nodes_tmp_;
	std::vector<xml_attr*> attrs_tmp_;
};

class string;

class ACL_CPP_API xml : public pipe_stream, public dbuf_obj
{
public:
	/**
	 * @param dbuf_nblock {size_t} <EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> dbuf_guard <EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param dbuf_capacity {size_t} <EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> dbuf_guard <EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	xml(size_t dbuf_nblock = 2, size_t dbuf_capacity = 100);
	virtual ~xml(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ڷDZպϵı<EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>Ապ<EFBFBD><EFBFBD>ַ<EFBFBD> '/'<EFBFBD><EFBFBD>ȱʡΪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param on {bool}
	 * @return {xml&}
	 */
	virtual xml& ignore_slash(bool on) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD>룬ȱʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param on {bool}
	 * @return {xml&}
	 */
	virtual xml& xml_decode(bool on) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD>룬ȱʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param on {bool}
	 * @return {xml&}
	 */
	virtual xml& xml_encode(bool on) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml ʱ<EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ㣨<EFBFBD>ڲ<EFBFBD>ȱʡΪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param on {bool}
	 * @retrn {xml&}
	 */
	virtual xml& xml_multi_root(bool on) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>ʽѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>ʹ<EFBFBD>ø<EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> reset() <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>εĽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param data {const char*} xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  ʣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> data Ϊ '\0'<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const char* update(const char* data) = 0;

	/**
	 * <EFBFBD>ж<EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param root_tag {const char*} <EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NULL <EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>øñ<EFBFBD>ǩ<EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>ͬ
	 * @return {bool}
	 */
	virtual bool complete(const char* root_tag) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ñ<EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD>ڲ<EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>εĽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual void reset(void) = 0;

	/**
	 * <EFBFBD>ӽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML ԭʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {const string&} <EFBFBD><EFBFBD><EFBFBD>ؽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ͷ<EFBFBD>
	 */
	virtual const string& getText(void);

	/**
	 * <EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>нڵ㼯<EFBFBD><EFBFBD>
	 * @param tag {const char*} <EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>Сд)
	 * @return {const std::vector<xml_node*>&} <EFBFBD><EFBFBD><EFBFBD>ؽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>empty() == true
	 *  ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>ýڵ㣬
	 *  <EFBFBD><EFBFBD>Ϊ<EFBFBD>ÿ<EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const std::vector<xml_node*>&
		getElementsByTagName(const char* tag) const = 0;

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD>ö<EFBFBD>Ӧ<EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>һ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param tag {const char*} <EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>Сд)
	 * @return {xml_node*} <EFBFBD><EFBFBD><EFBFBD>ؿձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD>ǩ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ㲻<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual xml_node* getFirstElementByTag(const char* tag) const = 0;

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>༶<EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>
	 * @param tags {const char*} <EFBFBD>༶<EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> '/' <EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
	 *  <root> <first> <second> <third name="test1"> text1 </third> </second> </first> ...
	 *  <root> <first> <second> <third name="test2"> text2 </third> </second> </first> ...
	 *  <root> <first> <second> <third name="test3"> text3 </third> </second> </first> ...
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>༶<EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>root/first/second/third һ<EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľڵ<EFBFBD>
	 * @return {const std::vector<xml_node*>&} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ㼯<EFBFBD><EFBFBD>, 
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>empty() == true
	 *  ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>ýڵ㣬
	 *  <EFBFBD><EFBFBD>Ϊ<EFBFBD>ÿ<EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const std::vector<xml_node*>&
		getElementsByTags(const char* tags) const = 0;

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>༶<EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>һ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD>
	 * @param tags {const char*} <EFBFBD>༶<EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> '/' <EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
	 *  <root> <first> <second> <third name="test1"> text1 </third> </second> </first> ...
	 *  <root> <first> <second> <third name="test2"> text2 </third> </second> </first> ...
	 *  <root> <first> <second> <third name="test3"> text3 </third> </second> </first> ...
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>༶<EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>root/first/second/third һ<EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľڵ<EFBFBD>
	 * @return {xml_node*} <EFBFBD><EFBFBD><EFBFBD>ؿձ<EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual xml_node* getFirstElementByTags(const char* tags) const = 0;

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> name <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ㼯<EFBFBD><EFBFBD>
	 * @param value {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ name <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {const std::vector<xml_node*>&} <EFBFBD><EFBFBD><EFBFBD>ؽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>empty() == true
	 *  ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>ýڵ㣬
	 *  <EFBFBD><EFBFBD>Ϊ<EFBFBD>ÿ<EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const std::vector<xml_node*>&
		getElementsByName(const char* value) const = 0;

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>и<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD>Ԫ<EFBFBD>ؼ<EFBFBD><EFBFBD><EFBFBD>
	 * @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param value {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 * @return {const std::vector<xml_node*>&} <EFBFBD><EFBFBD><EFBFBD>ؽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>empty() == true
	 */
	virtual const std::vector<xml_node*>& getElementsByAttr(
		const char* name, const char* value) const = 0;

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD> id ֵ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD>Ԫ<EFBFBD><EFBFBD>
	 * @param id {const char*} id ֵ
	 * @return {const xml_node*} xml <EFBFBD>ڵ<EFBFBD>Ԫ<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NULL <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾû<EFBFBD>з<EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ͷ<EFBFBD>
	 */
	virtual xml_node* getElementById(const char* id) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param tag {const char*} <EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @param txt {const char*} <EFBFBD>ı<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node*} <EFBFBD>²<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>û<EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ϊ
	 *  <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ʱ<EFBFBD><EFBFBD>Щ<EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD>û<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD> reset <EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>Щ xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual xml_node& create_node(const char* tag,
		const char* txt = NULL) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ڵ<EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param tag {const char*} <EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @param in {istream&} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param off {size_t} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD>ʼλ<EFBFBD><EFBFBD>
	 * @param len {size_t} Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 0 ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node*} <EFBFBD>²<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>û<EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ϊ
	 *  <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ʱ<EFBFBD><EFBFBD>Щ<EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD>û<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD> reset <EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>Щ xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual xml_node& create_node(const char* tag, istream& in,
		size_t off = 0, size_t len = 0) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param tag {const char*} <EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD>
	 * @param number {long long int} 64 λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node*} <EFBFBD>²<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml_node <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>û<EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ϊ
	 *  <EFBFBD><EFBFBD>xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ʱ<EFBFBD><EFBFBD>Щ<EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD>û<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  reset <EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>Щ xml_node <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
#if defined(_WIN32) || defined(_WIN64)
	xml_node& create_node(const char* tag, __int64 number);
#else
	xml_node& create_node(const char* tag, long long int number);
#endif

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬵<EFBFBD><EFBFBD><EFBFBD>Ҫע<EFBFBD>⣬<EFBFBD>ýڵ<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ڵ㣬<EFBFBD><EFBFBD><EFBFBD>治<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㸸<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {xml_node&}
	 */
	virtual xml_node& get_root(void) = 0;

	/**
	 * <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD>󲢻<EFBFBD><EFBFBD>õ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>
	 * @return {xml_node*} <EFBFBD><EFBFBD><EFBFBD>ؿձ<EFBFBD>ʾ<EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>սڵ<EFBFBD>
	 *  ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD>ͷ<EFBFBD>
	 */
	virtual xml_node* first_node(void) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD>
	 * @return {xml_node*} <EFBFBD><EFBFBD><EFBFBD>ؿձ<EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD>ͷ<EFBFBD>
	 */
	virtual xml_node* next_node(void) = 0;

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
	 * @param out {string&} <EFBFBD>洢ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual void build_xml(string& out) const { (void) out; };

	/**
	 * <EFBFBD><EFBFBD> xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>Ϊ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
	 * @param len {size_t*} <EFBFBD><EFBFBD> NULL ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>
	 * @return {const char*} xml <EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual const char* to_string(size_t* len = NULL) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰ xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>ܺ<EFBFBD>
	 * @return {size_t}
	 */
	virtual size_t space(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼ xml <EFBFBD>ѷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0
	 */
	virtual void space_clear(void) = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰ xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {size_t}
	 */
	virtual size_t node_count(void) const = 0;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰ xml <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> xml <EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ե<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {size_t}
	 */
	virtual size_t attr_count(void) const = 0;

public:
	// pipe_stream <20>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

	virtual int push_pop(const char* in, size_t len,
		string* out, size_t max = 0);
	virtual int pop_end(string* out, size_t max = 0);
	virtual void clear(void);

protected:
	dbuf_guard dbuf_;
	std::vector<xml_node*> elements_;
	string* buf_;
	//bool dummyRootAdded_;

	ACL_TOKEN* m_pTokenTree;
	//std::list<xml_node*> nodes_tmp_;
};

} // namespace acl