C++ (Cpp) IXMLDOMElementPtr::getElementsByTagName Examples

Example #1

File: xmlutil.cpp Project: thenfour/VerEdit

Result GetFirstElementByTagName(MSXML::IXMLDOMElementPtr& parent, const string& tagName, MSXML::IXMLDOMElementPtr& pEl)
{
	Result r;

	try
	{
		pEl = 0;
		MSXML::IXMLDOMNodeListPtr pList = parent->getElementsByTagName(tagName.c_str());
		if(pList == NULL)
		{
			r.Fail(Format("No '%' nodes found (pList = 0)").s(tagName).Str());
		}
		else
		{
			if(!pList->length)
			{
				r.Fail(Format("No '%' nodes found (length = 0)").s(tagName).Str());
			}
			else
			{
				pEl = pList->nextNode();
				r.Succeed();
			}
		}
	}
	catch(_com_error& e)
	{
		r.Fail(Format("Com error: % %").s(e.ErrorMessage()).s(e.Description()).Str());
	}

	return r;
}

Example #2

File: XMLDefine.cpp Project: gamepattisiere/laboratory

/*
 * ----- main -----
 */
int main(int argc, char* argv[]) {
	
	if ( argc != 2 ) {
		cerr << "fsm <URL for FSM>" << endl;
		return 1;
	}
	
	if ( FAILED(CoInitialize(0)) ) {
		cerr << "Can't initialize COM" << endl;
		return 1;
	}
	
	try {
		
		/*
		 * XML Parser の生成と初期化
		 */
		MSXML::IXMLDOMDocumentPtr document("MSXML.DOMDocument");
		document->validateOnParse = VARIANT_TRUE; // 検証を行う
		document->async = VARIANT_FALSE;          // Parse完了までloadメソッドをブロック
		
		/*
		 * 引数に与えられたURLで示されたXMLをロードする
		 */
		document->load(argv[1]);
		
		/*
		 * Parseエラーがあれば出力
		 */
		MSXML::IXMLDOMParseErrorPtr error = document->parseError;
		if ( error->errorCode != 0 ) {
			if ( error->line ) {
				cerr << "line     : " << error->line << endl;
				cerr << "position : " << error->linepos << endl;
				cerr << "source   : " << (const char*)error->srcText << endl;
			}
			cerr << "URL        : " << (const char*)error->url       << endl;
			cerr << "code       : " << error->errorCode << endl;
			cerr << "reason     : " << (const char*)error->reason    << endl;
			return 1;
		}
		
		/*
		 * ルートエレメントを取得する
		 */
		MSXML::IXMLDOMElementPtr root = document->documentElement;
		
		/*
		 * 全イベントを取り出す
		 */
		set<string> event_set;
		MSXML::IXMLDOMNodeListPtr events = root->getElementsByTagName("Event");
		for ( int i = 0; i < events->length; ++i ) {
			MSXML::IXMLDOMElementPtr node = events->item[i];
			event_set.insert(get_attribute(node,"name"));
		}
		
		/*
		 * 初期状態 / 終了状態 を取得する
		 */
		string state_name     = get_attribute(root,"initial");
		string terminal_name  = get_attribute(root,"terminal");
		
		string fsm_name       = get_attribute(root,"name");
		cout << "FSM : " << fsm_name << endl;
		
		/*
		 * 状態遷移表を駆動する
		 */
		while ( state_name != terminal_name ) {
			
			/*
			 * state_name で示される State を見つける
			 */
			MSXML::IXMLDOMElementPtr state  = find_element(root,"name",state_name);
			if ( state == 0 ) {
				cerr << "can't find state : " << state_name << endl;
				break;
			}
			
			/*
			 * 現在の状態とイベント一覧を出力する
			 */
			cout << "state : " << state_name << endl;
			cout << "enter an event (";
			copy(event_set.begin(), event_set.end(), ostream_iterator<string>(cout,","));
			cout << "exit) ? " << flush;
			
			/*
			 * ユーザからのイベント入力
			 */
			string event_name;
			cin >> event_name;
			if ( event_name == "exit" )
				break;
			if ( event_set.find(event_name) == event_set.end() ) {
				cerr << event_name << " is not valid." << endl;
				continue;
			}
			
			/*
			 * event_name で示される Event を見つける
			 */
			MSXML::IXMLDOMElementPtr event = find_element(state,"name",event_name);
			if ( event == 0 ) {
				cerr << "can't find event : " << event_name << endl;
				break;
			}
			
			/*
			 * アクションを実行する
			 */
			string action_name = get_attribute(event,"action");
			if ( action_name != "none" )
				cout << "action : " << action_name << endl;
			
			/*
			 * 次の状態へ遷移する
			 */
			string transition_name = get_attribute(event,"transition");
			if ( transition_name != "none" )
				state_name = transition_name;
		}
		
	} catch ( _com_error& ex ) {
		cerr << "COM error occurred : " << ex.ErrorMessage() << endl;
	}
	
	CoUninitialize();
	return 0;
}