C++ XMLComment::Value方法代码示例

//.........这里部分代码省略.........
		XMLElement* newElement = doc.NewElement( "Subelement" );
		root->InsertEndChild( newElement );
		doc.Print();
	}
	{
		XMLDocument* doc = new XMLDocument();
		static const char* test = "<element><sub/></element>";
		doc->Parse( test );
		delete doc;
	}
	{
		// Test: Programmatic DOM
		// Build:
		//		<element>
		//			<!--comment-->
		//			<sub attrib="1" />
		//			<sub attrib="2" />
		//			<sub attrib="3" >& Text!</sub>
		//		<element>

		XMLDocument* doc = new XMLDocument();
		XMLNode* element = doc->InsertEndChild( doc->NewElement( "element" ) );

		XMLElement* sub[3] = { doc->NewElement( "sub" ), doc->NewElement( "sub" ), doc->NewElement( "sub" ) };
		for( int i=0; i<3; ++i ) {
			sub[i]->SetAttribute( "attrib", i );
		}
		element->InsertEndChild( sub[2] );
		XMLNode* comment = element->InsertFirstChild( doc->NewComment( "comment" ) );
		element->InsertAfterChild( comment, sub[0] );
		element->InsertAfterChild( sub[0], sub[1] );
		sub[2]->InsertFirstChild( doc->NewText( "& Text!" ));
		doc->Print();
		XMLTest( "Programmatic DOM", "comment", doc->FirstChildElement( "element" )->FirstChild()->Value() );
		XMLTest( "Programmatic DOM", "0", doc->FirstChildElement( "element" )->FirstChildElement()->Attribute( "attrib" ) );
		XMLTest( "Programmatic DOM", 2, doc->FirstChildElement()->LastChildElement( "sub" )->IntAttribute( "attrib" ) );
		XMLTest( "Programmatic DOM", "& Text!",
				 doc->FirstChildElement()->LastChildElement( "sub" )->FirstChild()->ToText()->Value() );

		// And now deletion:
		element->DeleteChild( sub[2] );
		doc->DeleteNode( comment );

		element->FirstChildElement()->SetAttribute( "attrib", true );
		element->LastChildElement()->DeleteAttribute( "attrib" );

		XMLTest( "Programmatic DOM", true, doc->FirstChildElement()->FirstChildElement()->BoolAttribute( "attrib" ) );
		int value = 10;
		int result = doc->FirstChildElement()->LastChildElement()->QueryIntAttribute( "attrib", &value );
		XMLTest( "Programmatic DOM", result, (int)XML_NO_ATTRIBUTE );
		XMLTest( "Programmatic DOM", value, 10 );

		doc->Print();

		{
			XMLPrinter streamer;
			doc->Print( &streamer );
			printf( "%s", streamer.CStr() );
		}
		{
			XMLPrinter streamer( 0, true );
			doc->Print( &streamer );
			XMLTest( "Compact mode", "<element><sub attrib=\"1\"/><sub/></element>", streamer.CStr(), false );
		}
		doc->SaveFile( "./resources/out/pretty.xml" );
		doc->SaveFile( "./resources/out/compact.xml", true );

	bool XMLPrinter::Visit( const XMLComment& comment )
	{
		PushComment( comment.Value() );
		return true;
	}

int main( int /*argc*/, const char ** /*argv*/ )
{
	#if defined( _MSC_VER ) && defined( DEBUG )
		_CrtMemCheckpoint( &startMemState );
	#endif	

	#if defined(_MSC_VER)
	#pragma warning ( push )
	#pragma warning ( disable : 4996 )		// Fail to see a compelling reason why this should be deprecated.
	#endif

	FILE* fp = fopen( "dream.xml", "r" );
	if ( !fp ) {
		printf( "Error opening test file 'dream.xml'.\n"
				"Is your working directory the same as where \n"
				"the xmltest.cpp and dream.xml file are?\n\n"
	#if defined( _MSC_VER )
				"In windows Visual Studio you may need to set\n"
				"Properties->Debugging->Working Directory to '..'\n"
	#endif
			  );
		exit( 1 );
	}
	fclose( fp );

	#if defined(_MSC_VER)
	#pragma warning ( pop )
	#endif

	/* ------ Example 1: Load and parse an XML file. ---- */	
	{
		XMLDocument doc;
		doc.LoadFile( "dream.xml" );
	}
	
	/* ------ Example 2: Lookup information. ---- */	
	{
		XMLDocument doc;
		doc.LoadFile( "dream.xml" );

		// Structure of the XML file:
		// - Element "PLAY"			the root Element
		// - - Element "TITLE"		child of the root PLAY Element
		// - - - Text				child of the TITLE Element
		
		// Navigate to the title, using the convenience function, with a dangerous lack of error checking.
		const char* title = doc.FirstChildElement( "PLAY" )->FirstChildElement( "TITLE" )->GetText();
		printf( "Name of play (1): %s\n", title );
		
		// Text is just another Node to TinyXML-2. The more general way to get to the XMLText:
		XMLText* textNode = doc.FirstChildElement( "PLAY" )->FirstChildElement( "TITLE" )->FirstChild()->ToText();
		title = textNode->Value();
		printf( "Name of play (2): %s\n", title );
	}

	{
		static const char* test[] = {	"<element />",
									    "<element></element>",
										"<element><subelement/></element>",
									    "<element><subelement></subelement></element>",
									    "<element><subelement><subsub/></subelement></element>",
									    "<!--comment beside elements--><element><subelement></subelement></element>",
									    "<!--comment beside elements, this time with spaces-->  \n <element>  <subelement> \n </subelement> </element>",
									    "<element attrib1='foo' attrib2=\"bar\" ></element>",
									    "<element attrib1='foo' attrib2=\"bar\" ><subelement attrib3='yeehaa' /></element>",
										"<element>Text inside element.</element>",
										"<element><b></b></element>",
										"<element>Text inside and <b>bolded</b> in the element.</element>",
										"<outer><element>Text inside and <b>bolded</b> in the element.</element></outer>",
										"<element>This &amp; That.</element>",
										"<element attrib='This&lt;That' />",
										0
		};
		for( int i=0; test[i]; ++i ) {
			XMLDocument doc;
			doc.Parse( test[i] );
			doc.Print();
			printf( "----------------------------------------------\n" );
		}
	}
#if 1
	{
		static const char* test = "<!--hello world\n"
			                      "          line 2\r"
			                      "          line 3\r\n"
			                      "          line 4\n\r"
			                      "          line 5\r-->";

		XMLDocument doc;
		doc.Parse( test );
		doc.Print();
	}

	{
		static const char* test = "<element>Text before.</element>";
		XMLDocument doc;
		doc.Parse( test );
		XMLElement* root = doc.FirstChildElement();
		XMLElement* newElement = doc.NewElement( "Subelement" );
		root->InsertEndChild( newElement );
//.........这里部分代码省略.........