class TiXmlNode template
class xml_node

class TiXmlAttribute template
class xml_attribute
下面还是看一个具体的例子来体验一下，下面是TinyXML官方教程中创建XML文档的一段代码：
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void build_simple_doc( )
{
// Make xml: World
TiXmlDocument doc;
TiXmlDeclaration * decl = new TiXmlDeclaration( "1.0", "", "" );
TiXmlElement * element = new TiXmlElement( "Hello" );
TiXmlText * text = new TiXmlText( "World" );
element->LinkEndChild( text );
doc.LinkEndChild( decl );
doc.LinkEndChild( element );
doc.SaveFile( "madeByHand.xml" );
}
void build_simple_doc( )
{
// Make xml: World
TiXmlDocument doc;
TiXmlDeclaration * decl = new TiXmlDeclaration( "1.0", "", "" );
TiXmlElement * element = new TiXmlElement( "Hello" );
TiXmlText * text = new TiXmlText( "World" );
element->LinkEndChild( text );
doc.LinkEndChild( decl );
doc.LinkEndChild( element );
doc.SaveFile( "madeByHand.xml" );
}

下面是使用RapidXML实现类似功能的代码：
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void build_simple_doc_by_rapidxml()
{
xml_document doc;
xml_node* decl = doc.allocate_node(node_declaration);
xml_attribute* decl_ver =
doc.allocate_attribute("version", "1.0");
decl->append_attribute(decl_ver);
doc.append_node(decl);
xml_node* node =
doc.allocate_node(node_element, "Hello", "World");
doc.append_node(node);
string text;
rapidxml::print(std::back_inserter(text), doc, 0);
// write text to file by yourself
}
void build_simple_doc_by_rapidxml()
{
xml_document doc;
xml_node* decl = doc.allocate_node(node_declaration);
xml_attribute* decl_ver =
doc.allocate_attribute("version", "1.0");
decl->append_attribute(decl_ver);
doc.append_node(decl);
xml_node* node =
doc.allocate_node(node_element, "Hello", "World");
doc.append_node(node);
string text;
rapidxml::print(std::back_inserter(text), doc, 0);
// write text to file by yourself
}
下面是使用RapidXML分析XML的样例代码：
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void parse_doc_by_rapidxml(char* xml_doc)
{
xml_document doc; // character type defaults to char
doc.parse(xml_doc); // 0 means default parse flags
xml_node *node = doc.first_node("Hello");
string node_val = node->value();
}
void parse_doc_by_rapidxml(char* xml_doc)
{
xml_document doc; // character type defaults to char
doc.parse(xml_doc); // 0 means default parse flags
xml_node *node = doc.first_node("Hello");
string node_val = node->value();
}

首先上一个简单的xml写文件
如下:
#include
#include
#include
#include

using namespace rapidxml;

int main()
{
xml_document doc;
xml_node * rot = doc.allocate_node(rapidxml::node_pi,doc.allocate_string( " xml version='1.0' encoding='utf-8' " ));
doc.append_node(rot);
xml_node * node = doc.allocate_node(node_element, " config " , " information " );
xml_node * color = doc.allocate_node(node_element, " color " ,NULL);
doc.append_node(node);
node -> append_node(color);
color -> append_node(doc.allocate_node(node_element, " red " , " 0.1 " ));
color -> append_node(doc.allocate_node(node_element, " green " , " 0.1 " ));
color -> append_node(doc.allocate_node(node_element, " blue " , " 0.1 " ));
color -> append_node(doc.allocate_node(node_element, " alpha " , " 1.0 " ));

xml_node * size = doc.allocate_node(node_element, " size " ,NULL);
size -> append_node(doc.allocate_node(node_element, " x " , " 640 " ));
size -> append_node(doc.allocate_node(node_element, " y " , " 480 " ));
node -> append_node(size);

xml_node * mode = doc.allocate_node(rapidxml::node_element, " mode " , " screen mode " );
mode -> append_attribute(doc.allocate_attribute( " fullscreen " , " false " ));
node -> append_node(mode);

std:: string text;
rapidxml::print(std::back_inserter(text), doc, 0 );

std::cout << text << std::endl;

std::ofstream out ( " config.xml " );
out << doc;

system( " PAUSE " );
return EXIT_SUCCESS;
}

生成的xml文件为:

0.1
0.1
0.1
1.0

640
480

screen mode

说实话 感觉这个比较不错
希望更多的人使用它!

接上篇
本文主要涉及rapidxml读文件的操作

基本的步骤为
首先获取xml文件数据
然后分析数据
获取节点
获取属性
获取名字
获取值
...

代码如下:
#include
#include
#include
#include

using namespace rapidxml;

int main()
{
file fdoc( " config.xml " );
std::cout << fdoc.data() << std::endl;
xml_document doc;
doc.parse (fdoc.data());

std::cout << doc.name() << std::endl;

// ! 获取根节点
xml_node * root = doc.first_node();
std::cout < name() << std::endl;

// ! 获取根节点第一个节点
xml_node * node1 = root -> first_node();
std::cout < name() << std::endl;

xml_node * node11 = node1 -> first_node();
std::cout < name() << std::endl;
std::cout < value() << std::endl;

// ! 修改之后再次保存
xml_node * size = root -> first_node( " size " );
size -> append_node(doc.allocate_node(node_element, " w " , " 0 " ));
size -> append_node(doc.allocate_node(node_element, " h " , " 0 " ));

std:: string text;
rapidxml::print(std::back_inserter(text),doc, 0 );

std::cout << text << std::endl;

std::ofstream out ( " config.xml " );
out << doc;

system( " PAUSE " );
return EXIT_SUCCESS;
}

生成的xml为:

0.1
0.1
0.1
1.0

640
480

screen mode

需要说明的是rapidxml明显有一个bug
那就是append_node(doc.allocate_node(node_element,"h","0"));的时候并不考虑该对象是否存在!

经过这2篇 基本上就可以使用xml了
当然这里并没有涉及异常处理