TinyXML2 Open Source Library uses

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TinyXML2 Study: http://www.tuicool.com/articles/uYBB7j

C + + uses TinyXML to create and parse XML files (this article is for COCOS2DX): http://blog.csdn.net/u012234115/article/details/38643259 Declaration

I am because of the work of the use of TinyXML, the source code is directly provided to me by the boss, and the spread of the internet is not the same, so I do not know where the download link, but I will be included in the end of the article source

Preface

TinyXML is an open source parsing XML parsing library, can be used in C + +, can be compiled in Windows or Linux, using TinyXML for C + + XML parsing, simple and easy to use. The
model of this analytic library parses the XML file and then generates the DOM model in memory, which makes it easy to traverse the XML tree. The 
DOM model, the Document object model, divides the entire document into elements such as books, chapters, sections, paragraphs, and so on, and uses a tree structure to represent the order relationships between these elements and the nested containment relationships.

TinyXML Introduction

In TinyXML, some classes are defined according to the various elements of XML:
    xmlbase: The base class for the entire TinyXML model.
    XmlAttribute: A property that corresponds to an element in XML.
    XmlNode: Corresponds to a node in the DOM structure.
    xmlcomment: Corresponds to the comment in the XML.
    XmlDeclaration: Corresponds to the declaration part in XML, that is, <. Versiong= "1.0"?>.
    XmlDocument: The entire document that corresponds to XML.
    XmlElement: The element that corresponds to the XML.
    XmlText: Corresponds to the text portion of the XML.
    Xmlunknown: Corresponds to an unknown part of XML. 
    Xmlhandler: Defines some operations for XML.

Application Examples

Get familiar with the API by creating and reading the following XML

<?xml version= "1.0"?>  
<school name= "Software Academy" >  
    <class name = "C + +" >  
        <student name= " TinyXML "number=" 123 ">  
            <email>tinyxml@163.com</email>  
            <address> China </address>           
        </Student>  
        <student name= "Jsoncpp" number= "456" >  
            <email>jsoncpp@gmail.com</ Email>  
            <address> USA </address>           
        </Student>  
    </Class>  

Creating XML

BOOL Createxml () {XMLDocument *doc = new XMLDocument;
    XmlDeclaration *declaration = doc->newdeclaration ("xml version=\" 1.0\ "encoding=\" Gbk\ "");
    Doc->linkendchild (declaration);
    XMLElement *eleschool = doc->newelement ("School");

    Doc->linkendchild (Eleschool);    Eleschool->setattribute ("name", "Software Academy");
    Set Property XMLElement *eleclass = Doc->newelement ("Class");  Eleschool->linkendchild (Eleclass);

    Hang on the school node Eleclass->setattribute ("name", "C + +");
    ------------------------------First Student XMLElement *elestudent = doc->newelement ("Student"); Eleclass->linkendchild (elestudent);
    Hang on the school node//can set multiple properties Elestudent->setattribute ("name", "TinyXML");

    Elestudent->setattribute ("number", 123);
    XMLElement *eleemail = doc->newelement ("email");
    Elestudent->linkendchild (Eleemail);
    XMLText *texemail = Doc->newtext ("tinyxml@163.com");

    Eleemail->linkendchild (Texemail); XmlelemeNT *eleaddress = doc->newelement ("Address");
    Elestudent->linkendchild (eleaddress);
    XMLText *texaddress = Doc->newtext ("China");

    Eleaddress->linkendchild (texaddress);
    ------------------------------A second student XMLElement *elestudent1 = doc->newelement ("Student");    Eleclass->linkendchild (ELESTUDENT1);
    Hang on the school node Elestudent1->setattribute ("name", "Jsoncpp");

    Elestudent1->setattribute ("number", 456);
    XMLElement *eleemail1 = doc->newelement ("email");
    Elestudent1->linkendchild (ELEEMAIL1);
    XMLText *texemail1 = Doc->newtext ("jsoncpp@gmail.com");

    Eleemail1->linkendchild (TEXEMAIL1);
    XMLElement *eleaddress1 = doc->newelement ("Address");
    Elestudent1->linkendchild (ELEADDRESS1);
    XMLText *texaddress1 = Doc->newtext ("United States");

    Eleaddress1->linkendchild (TEXADDRESS1);
        if (xml_success! = Doc->savefile ("E:/tmp.xml")) {delete doc;
    return false; } doc->savefile ("e:/Tmp.xml ");
    Delete doc;
return true; }

Read

BOOL ReadXml () {XMLDocument doc; if (xml_success! = doc.
    LoadFile ("E:/tmp.xml"))//load XML failed to return false {return false; } XMLElement *eleschool = Doc.  RootElement ();

        Get root node if (eleschool) {cout << "School:" << eleschool->attribute ("name") << Endl;
        xmlelement* Eleclass = eleschool->firstchildelement ("Class");
            while (Eleclass) {cout << "Class:" << eleclass->attribute ("name") << Endl;
            xmlelement* elestudent = eleclass->firstchildelement ("Student"); while (elestudent) {cout << "Student:" << elestudent->attribute ("name") &L
                t;< "," << Elestudent->attribute ("number") << Endl;
                xmlelement* Eleemail = elestudent->firstchildelement ("email"); if (eleemail) {cout << "Email:" << ELEEMAIL-&GT
                GetText () << Endl;
                } xmlelement* eleaddress = elestudent->firstchildelement ("Address"); if (eleaddress) {cout << "Address:" << eleaddress->gettext () &lt
                ;< Endl;
            } elestudent = Elestudent->nextsiblingelement ("Student");
        } Eleclass = Eleclass->nextsiblingelement (); }
    }
}

XMLDocument::P arse (const char* p, size_t len)
This function can parse the XML-formatted string
firstchildelement (const char* value=0) directly: Gets the first child node that is value, and the value defaults to NULL, which returns the first child.
rootelement (): Gets the root node, equivalent to the null parameter version of firstchildelement;
const xmlattribute* FirstAttribute () const: Gets the first property value;
xmlhandle nextsiblingelement (const char* _value=0): Gets the next node.

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