xml파일 읽기 저장

http://yamoe.tistory.com/228

RapidXml 1.13 의 샘플

RapidXml : http://rapidxml.sourceforge.net/

Platform	Compiler	strlen()	RapidXml	pugixml 0.3	pugxml	TinyXml
Pentium 4	MSVC 8.0	2.5	5.4	7.0	61.7	298.8
Pentium 4	gcc 4.1.1	0.8	6.1	9.5	67.0	413.2
Core 2	MSVC 8.0	1.0	4.5	5.0	24.6	154.8
Core 2	gcc 4.1.1	0.6	4.6	5.4	28.3	229.3
Athlon XP	MSVC 8.0	3.1	7.7	8.0	25.5	182.6
Athlon XP	gcc 4.1.1	0.9	8.2	9.2	33.7	265.2
Pentium 3	MSVC 8.0	2.0	6.3	7.0	30.9	211.9
Pentium 3	gcc 4.1.1	1.0	6.7	8.9	35.3	316.0

[test.xml]

<?xml version="1.0" encoding="utf-8" standalone="yes"?>

<root ver="1">

    <entry stop="1">

        <name type="man1">man1</name>

        <content>content1</content>

    </entry>

    <entry step="2">

        <name type="man2">name2</name>

        <content>content2</content>

    </entry>

</root>













[test2.xml]




<?xml version="1.0" encoding="utf-8"?>

<root ver="1">

    <child>child1</child>

</root>

[main.cpp]

#include <string>

#include <vector>

#include <fstream>

#include <iostream>

 

 

#include "rapidxml-1.13\rapidxml.hpp"           // use rapidxml

#include "rapidxml-1.13\rapidxml_print.hpp"     // to wirte file

 

// 노드 출력

void printNode(rapidxml::xml_node<wchar_t>* node)

{

    // print node

    std::wcout << node->name() << L"=" << node->value();

 

    // print attribute

    for( rapidxml::xml_attribute<wchar_t>* attr=node->first_attribute(); attr; attr=attr->next_attribute() )

    {

        std::wcout << L"\t" << attr->name() << L"=" << attr->value();

    }

 

    std::wcout << std::endl;

}

 

// xml 파일 읽기

void ReadXml(std::wstring& filepath)

{

    std::wifstream xmlFile;

    xmlFile.open(filepath.c_str(), std::ios_base::in);

    if (!xmlFile.is_open())

    {

        return;

    }

 

    xmlFile.seekg(0, std::ios::end);    // 마지막 파일 포인터로 이동

    std::wifstream::pos_type size = xmlFile.tellg();        // 파일 크기

    xmlFile.seekg(0);                   // 처음 파일 포인터로 이동

 

    // xml 파일을 vector로 읽음

    std::vector<wchar_t> xmlData((int)size + 1, 0);  

    xmlFile.read(&xmlData.front(), (std::streamsize)size);

    xmlFile.close();

 

    // parsing

    rapidxml::xml_document<wchar_t> doc;

    doc.parse<rapidxml::parse_default>(&xmlData.front());

     

     

    // get root

    rapidxml::xml_node<wchar_t>* root = doc.first_node();

 

    // print root node & attribute

    printNode(root);

 

    // print child node

    for ( rapidxml::xml_node<wchar_t>* item=root->first_node(); item; item=item->next_sibling() )

    {

        printNode(item);

 

        for ( rapidxml::xml_node<wchar_t>* subitem=item->first_node(); subitem; subitem=subitem->next_sibling() )

        {

            printNode(subitem);

        }

         

    }

    doc.clear();

}

 

// xml 파일 저장

void SaveXml(std::wstring& filename)

{

    rapidxml::xml_document<wchar_t> doc;

 

    // append xml declaration

    rapidxml::xml_node<wchar_t>* header = doc.allocate_node(rapidxml::node_declaration);

    header->append_attribute(doc.allocate_attribute(L"version", L"1.0"));

    header->append_attribute(doc.allocate_attribute(L"encoding", L"utf-8"));

    doc.append_node(header);

 

    // append root node

    rapidxml::xml_node<wchar_t>* root = doc.allocate_node(rapidxml::node_element, L"root");

    root->append_attribute(doc.allocate_attribute(L"ver", L"1"));

    doc.append_node(root);

 

    // append child node

    rapidxml::xml_node<wchar_t>* child = doc.allocate_node(rapidxml::node_element, L"child");

    child->value(L"child1");

    root->append_node(child);

 

    std::wstring xmlString;

    rapidxml::print(std::back_inserter(xmlString), doc);

 

    // 문자를 UTF-8로 변환해서 저장해야 하는데

    // 샘플이므로 처리 하지 않아 실제로 ANSI 파일 형식으로 저장됨

    std::wofstream wstream;

    wstream.open(filename.c_str());

    wstream << xmlString;

    wstream.clear();

}

 

int _tmain(int argc, _TCHAR* argv[])

{      

    ReadXml(std::wstring(L"test.xml"));

    SaveXml(std::wstring(L"test2.xml"));

    return 0;

}