C++ TiXmlDeclaration类代码示例

const char* TiXmlDocument::Parse( const char* p, TiXmlParsingData* prevData, TiXmlEncoding encoding )
{
	ClearError();

	// Parse away, at the document level. Since a document
	// contains nothing but other tags, most of what happens
	// here is skipping white space.
	if ( !p || !*p )
	{
		SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN );
		return 0;
	}

	// Note that, for a document, this needs to come
	// before the while space skip, so that parsing
	// starts from the pointer we are given.
	location.Clear();
	if ( prevData )
	{
		location.row = prevData->cursor.row;
		location.col = prevData->cursor.col;
	}
	else
	{
		location.row = 0;
		location.col = 0;
	}
	TiXmlParsingData data( p, TabSize(), location.row, location.col );
	location = data.Cursor();

	if ( encoding == TIXML_ENCODING_UNKNOWN )
	{
		// Check for the Microsoft UTF-8 lead bytes.
		if (	*(p+0) && *(p+0) == (char)(0xef)
			 && *(p+1) && *(p+1) == (char)(0xbb)
			 && *(p+2) && *(p+2) == (char)(0xbf) )
		{
			encoding = TIXML_ENCODING_UTF8;
		}
	}

    p = SkipWhiteSpace( p, encoding );
	if ( !p )
	{
		SetError( TIXML_ERROR_DOCUMENT_EMPTY, 0, 0, TIXML_ENCODING_UNKNOWN );
		return 0;
	}

	while ( p && *p )
	{
		TiXmlNode* node = Identify( p, encoding );
		if ( node )
		{
			p = node->Parse( p, &data, encoding );
			LinkEndChild( node );
		}
		else
		{
			break;
		}

		// Did we get encoding info?
		if (    encoding == TIXML_ENCODING_UNKNOWN
			 && node->ToDeclaration() )
		{
			TiXmlDeclaration* dec = node->ToDeclaration();
			const char* enc = dec->Encoding();
			assert( enc );

			if ( *enc == 0 )
				encoding = TIXML_ENCODING_UTF8;
			else if ( StringEqual( enc, "UTF-8", true, TIXML_ENCODING_UNKNOWN ) )
				encoding = TIXML_ENCODING_UTF8;
			else if ( StringEqual( enc, "UTF8", true, TIXML_ENCODING_UNKNOWN ) )
				encoding = TIXML_ENCODING_UTF8;	// incorrect, but be nice
			else 
				encoding = TIXML_ENCODING_LEGACY;
		}

		p = SkipWhiteSpace( p, encoding );
	}

	// All is well.
	return p;
}

TiXmlDeclaration::TiXmlDeclaration( const TiXmlDeclaration& copy )
	: TiXmlNode( TiXmlNode::DECLARATION )
{
	copy.CopyTo( this );	
}

void TiXmlDeclaration::operator=( const TiXmlDeclaration& copy )
{
    Clear();
    copy.CopyTo( this );
}

//.........这里部分代码省略.........
		TiXmlAttribute* doors = room->FirstAttribute();
		assert(doors);

		XmlTest("Location tracking: Tab 8: room row", room->Row(), 1);
		XmlTest("Location tracking: Tab 8: room col", room->Column(), 49);
		XmlTest("Location tracking: Tab 8: doors row", doors->Row(), 1);
		XmlTest("Location tracking: Tab 8: doors col", doors->Column(), 55);
	}
	
	{
		const char* str =	"\t<?xml version=\"1.0\" standalone=\"no\" ?>\t<room doors='2'>\n"
							"  <!-- Silly example -->\n"
							"    <door wall='north'>A great door!</door>\n"
							"\t<door wall='east'/>"
							"</room>";

		TiXmlDocument doc;
		doc.Parse(str);

		TiXmlHandle docHandle(&doc);
		TiXmlHandle roomHandle = docHandle.FirstChildElement("room");
		TiXmlHandle commentHandle = docHandle.FirstChildElement("room").FirstChild();
		TiXmlHandle textHandle = docHandle.FirstChildElement("room").ChildElement("door", 0).FirstChild();
		TiXmlHandle door0Handle = docHandle.FirstChildElement("room").ChildElement(0);
		TiXmlHandle door1Handle = docHandle.FirstChildElement("room").ChildElement(1);

		assert(docHandle.Node());
		assert(roomHandle.Element());
		assert(commentHandle.Node());
		assert(textHandle.Text());
		assert(door0Handle.Element());
		assert(door1Handle.Element());

		TiXmlDeclaration* declaration = doc.FirstChild()->ToDeclaration();
		assert(declaration);
		TiXmlElement* room = roomHandle.Element();
		assert(room);
		TiXmlAttribute* doors = room->FirstAttribute();
		assert(doors);
		TiXmlText* text = textHandle.Text();
		TiXmlComment* comment = commentHandle.Node()->ToComment();
		assert(comment);
		TiXmlElement* door0 = door0Handle.Element();
		TiXmlElement* door1 = door1Handle.Element();

		XmlTest("Location tracking: Declaration row", declaration->Row(), 1);
		XmlTest("Location tracking: Declaration col", declaration->Column(), 5);
		XmlTest("Location tracking: room row", room->Row(), 1);
		XmlTest("Location tracking: room col", room->Column(), 45);
		XmlTest("Location tracking: doors row", doors->Row(), 1);
		XmlTest("Location tracking: doors col", doors->Column(), 51);
		XmlTest("Location tracking: Comment row", comment->Row(), 2);
		XmlTest("Location tracking: Comment col", comment->Column(), 3);
		XmlTest("Location tracking: text row", text->Row(), 3); 
		XmlTest("Location tracking: text col", text->Column(), 24);
		XmlTest("Location tracking: door0 row", door0->Row(), 3);
		XmlTest("Location tracking: door0 col", door0->Column(), 5);
		XmlTest("Location tracking: door1 row", door1->Row(), 4);
		XmlTest("Location tracking: door1 col", door1->Column(), 5);
	}


	// --------------------------------------------------------
	// UTF-8 testing. It is important to test:
	//	1. Making sure name, value, and text read correctly
	//	2. Row, Col functionality

void readSchoolXml() 
{
	using namespace std;

	const char *xmlFile = "conf/school.xml";

	TiXmlDocument doc;
	if (!doc.LoadFile(xmlFile))
	{
		cout << "Load xml file failed.\t" << xmlFile << endl;
		return;
	}

	cout << "Load xml file OK." << endl;
	
	TiXmlDeclaration *decl = doc.FirstChild()->ToDeclaration();

	if (!decl)
	{
		cout << "decl is null.\n" << endl;
		return;
	}
	
	cout <<  decl->Encoding();
	cout <<  decl->Version();
	cout <<  decl->Standalone() << endl;



	TiXmlHandle docHandle(&doc);
	TiXmlElement *child 
		= docHandle.FirstChild("School").FirstChild("Class").Child("Student", 0).ToElement();

	for ( ; child != NULL; child = child->NextSiblingElement())
	{
		TiXmlAttribute *attr = child->FirstAttribute();

		for (; attr != NULL; attr = attr->Next())
		{
			cout << attr->Name() << " : " << attr->Value() << endl;
		}
		
		TiXmlElement *ct = child->FirstChildElement();
		for (; ct != NULL; ct = ct->NextSiblingElement())
		{
			char buf[1024] = {0};
			u2g(ct->GetText(), strlen(ct->GetText()), buf, sizeof(buf));
			cout << ct->Value() << " : " << buf << endl;
		}
		cout << "=====================================" << endl;
	}
	
	TiXmlElement *schl = doc.RootElement();
	const char *value_t =schl->Attribute("name");
	
	char buf[1024] = {0};
	if ( u2g(value_t, strlen(value_t), buf, sizeof(buf)) == -1) {
		return;
	}
	cout << "Root Element value: " << buf << endl;
	schl->RemoveAttribute("name");
	schl->SetValue("NewSchool");


	cout << "Save file: " << (doc.SaveFile("conf/new.xml") ? "Ok" : "Failed") << endl;

return ;
	TiXmlElement *rootElement = doc.RootElement();
	TiXmlElement *classElement = rootElement->FirstChildElement();
	TiXmlElement *studentElement = classElement->FirstChildElement();


	// N 个 Student 节点
	for ( ; studentElement!= NULL; studentElement = studentElement->NextSiblingElement()) 
	{
		// 获得student
		TiXmlAttribute *stuAttribute = studentElement->FirstAttribute();
		for (; stuAttribute != NULL; stuAttribute = stuAttribute->Next()) 
		{
			cout << stuAttribute->Name() << " : " << stuAttribute->Value() << endl;
		}

		// 获得student的第一个联系方式 
		TiXmlElement *contact = studentElement->FirstChildElement();
		for (; contact != NULL; contact = contact->NextSiblingElement())
		{
			const char *text = contact->GetText();
			char buf[1024] = {0};
			if ( u2g(text, strlen(text), buf, sizeof(buf)) == -1) {
				continue;
			}
			cout << contact->Value() << " : " << buf << endl; 
		}
	}
}

//.........这里部分代码省略.........
              "    <wrong error>\n"
              "</passages>";
          
          TiXmlDocument doc;
          doc.Parse( error );
          XmlTest( "Error row", doc.ErrorRow(), 3 );
          XmlTest( "Error column", doc.ErrorCol(), 17 );
          //printf( "error=%d id='%s' row %d col%d\n", (int) doc.Error(), doc.ErrorDesc(), doc.ErrorRow()+1, doc.ErrorCol() + 1 );
	}
	{
		const char* str =	"\t<?xml version=\"1.0\" standalone=\"no\" ?>\t<room doors='2'>\n"
							"  <!-- Silly example -->\n"
							"    <door wall='north'>A great door!</door>\n"
							"\t<door wall='east'/>"
							"</room>";

        TiXmlDocument doc;
		doc.Parse( str );

		TiXmlHandle docHandle( &doc );
		TiXmlHandle roomHandle = docHandle.FirstChildElement( "room" );
		TiXmlHandle commentHandle = docHandle.FirstChildElement( "room" ).FirstChild();
		TiXmlHandle textHandle = docHandle.FirstChildElement( "room" ).ChildElement( "door", 0 ).FirstChild();
		TiXmlHandle door0Handle = docHandle.FirstChildElement( "room" ).ChildElement( 0 );
		TiXmlHandle door1Handle = docHandle.FirstChildElement( "room" ).ChildElement( 1 );

		assert( docHandle.Node() );
		assert( roomHandle.Element() );
		assert( commentHandle.Node() );
		assert( textHandle.Text() );
		assert( door0Handle.Element() );
		assert( door1Handle.Element() );

		TiXmlDeclaration* declaration = doc.FirstChild()->ToDeclaration();
		assert( declaration );
		TiXmlElement* room = roomHandle.Element();
		assert( room );
		TiXmlAttribute* doors = room->FirstAttribute();
		assert( doors );
		TiXmlText* text = textHandle.Text();
		TiXmlComment* comment = commentHandle.Node()->ToComment();
		assert( comment );
		TiXmlElement* door0 = door0Handle.Element();
		TiXmlElement* door1 = door1Handle.Element();

		XmlTest( "Location tracking: Declaration row", declaration->Row(), 1 );
		XmlTest( "Location tracking: Declaration col", declaration->Column(), 5 );
		XmlTest( "Location tracking: room row", room->Row(), 1 );
		XmlTest( "Location tracking: room col", room->Column(), 45 );
		XmlTest( "Location tracking: doors row", doors->Row(), 1 );
		XmlTest( "Location tracking: doors col", doors->Column(), 51 );
		XmlTest( "Location tracking: Comment row", comment->Row(), 2 );
		XmlTest( "Location tracking: Comment col", comment->Column(), 3 );
		XmlTest( "Location tracking: text row", text->Row(), 3 ); 
		XmlTest( "Location tracking: text col", text->Column(), 24 );
		XmlTest( "Location tracking: door0 row", door0->Row(), 3 );
		XmlTest( "Location tracking: door0 col", door0->Column(), 5 );
		XmlTest( "Location tracking: door1 row", door1->Row(), 4 );
		XmlTest( "Location tracking: door1 col", door1->Column(), 5 );
	}
	{
		const char* str =	"\t<?xml version=\"1.0\" standalone=\"no\" ?>\t<room doors='2'>\n"
							"</room>";

        TiXmlDocument doc;
		doc.SetTabSize( 8 );

void ProjectFileWriter::ConvertANSIXMLFile(TiXmlHandle & hdl, TiXmlDocument & doc, const gd::String & filename)
{
    //COMPATIBILITY CODE WITH ANSI GDEVELOP ( <= 3.6.83 )
    #if defined(GD_IDE_ONLY) && !defined(GD_NO_WX_GUI) //There should not be any problem with encoding in compiled games
    //Get the declaration element
    TiXmlDeclaration * declXmlElement = hdl.FirstChild().ToNode()->ToDeclaration();
    if(strcmp(declXmlElement->Encoding(), "UTF-8") != 0)
    {
        std::cout << "This is a legacy GDevelop project, checking if it is already encoded in UTF8..." << std::endl;

        //The document has not been converted for/saved by GDevelop UTF8, now, try to determine if the project
        //was saved on Linux and is already in UTF8 or on Windows and still in the locale encoding.
        bool isNotInUTF8 = false;
        std::ifstream docStream;
        docStream.open(filename.ToLocale(), std::ios::in);

        while( !docStream.eof() )
        {
            std::string docLine;
            std::getline(docStream, docLine);

            if( !gd::String::FromUTF8(docLine).IsValid() )
            {
                //The file contains an invalid character,
                //the file has been saved by the legacy ANSI Windows version of GDevelop
                // -> stop reading the file and start converting from the locale to UTF8
                isNotInUTF8 = true;
                break;
            }
        }

        docStream.close();

        //If the file is not encoded in UTF8, encode it
        if(isNotInUTF8)
        {
            std::cout << "The project file is not encoded in UTF8, conversion started... ";

            //Create a temporary file
            #if defined(WINDOWS)
            //Convert using the current locale
            wxString tmpFileName = wxFileName::CreateTempFileName("");
            std::ofstream outStream;
            docStream.open(filename.ToLocale(), std::ios::in);

            outStream.open(tmpFileName, std::ios::out | std::ios::trunc);

            while( !docStream.eof() )
            {
                std::string docLine;
                std::string convLine;

                std::getline(docStream, docLine);
                sf::Utf8::fromAnsi(docLine.begin(), docLine.end(), std::back_inserter(convLine));

                outStream << convLine << '\n';
            }

            outStream.close();
            docStream.close();

            #else
            //Convert using iconv command tool
            wxString tmpFileName = wxStandardPaths::Get().GetUserConfigDir() + "/gdevelop_converted_project";
            gd::String iconvCall = gd::String("iconv -f LATIN1 -t UTF-8 \"") + filename.ToLocale() + "\" ";
            #if defined(MACOS)
            iconvCall += "> \"" + tmpFileName + "\"";
            #else
            iconvCall += "-o \"" + tmpFileName + "\"";
            #endif

            std::cout << "Executing " << iconvCall  << std::endl;
            system(iconvCall.c_str());
            #endif

            //Reload the converted file, forcing UTF8 encoding as the XML header is false (still written ISO-8859-1)
            doc.LoadFile(std::string(tmpFileName).c_str(), TIXML_ENCODING_UTF8);

            std::cout << "Finished." << std::endl;
            gd::LogMessage(_("Your project has been upgraded to be used with GDevelop 4.\nIf you save it, you won't be able to open it with an older version: please do a backup of your project file if you want to go back to GDevelop 3."));
        }
    }
    #endif
    //END OF COMPATIBILITY CODE
}