自学教程：C++ CharString函数代码示例

void VerbApplyEnhancement::onExecute(){	NounShip * pShip = WidgetCast<NounShip>( target() );	if ( context()->isServer() && validate(pShip) && validate(m_pCargo) )	{		NounEnhancement::Ref pEnhancement = m_pCargo->enhancement();		if ( pEnhancement && pEnhancement->parent() == NULL && pEnhancement->canUse( pShip ) )		{			// this will attach the contained enhancement to the ship...			if ( pEnhancement->use( pShip ) )			{				// detach the cargo item now..				pShip->detachNode( m_pCargo );				pShip->privateChat( CharString().format( "<color;ffffff>Enhancement: Using <color;%6.6x>%s</color> on %s.", 					pEnhancement->color().RGB(),pEnhancement->getName(), pShip->name() ) );				LOG_STATUS( "VerbApplyEnhancement", "[ENHANCEMENT]:Apply:%u:%s:%s", 					pShip->userId(), pEnhancement->getName(),pShip->name() );				// save off storage with this "active" ship				context()->user()->saveStorage(pShip);			}			else			{				pShip->privateChat( CharString().format( "<color;ffffff>Enhancement: Failed to use enhancement <color;%6.6x>%s</color>.",					pEnhancement->color().RGB(), pEnhancement->getName() ) );			}		}	}}

void GameDocument::onShipCaptured( Noun * pCapper ){	TRACE( "GameDocument::onShipCaptured" );	setGameState( GS_DEATH );	m_bShipLost = true;	// inform our script	CharString sSelf = ship()->key().string();	CharString sCapper = pCapper != NULL ? pCapper->key().string() : "";	context()->scriptCall( CharString().format("onCaptured( '%s''%s' )", sSelf, sCapper ) );		// reset the camera time	s_fCamera = 0.0f;	WindowObserve * pWindow = WidgetCast<WindowObserve>( InterfaceContext::findNode( "ObserveWindow" ) );	if ( pWindow != NULL )	{		pWindow->setCameraMode( WindowObserve::CHASE );		pWindow->setTargetMode( WindowObserve::LOCKED );		pWindow->setTarget( ship() );	}	WindowText * pMessage = WidgetCast<WindowText>( InterfaceContext::findNode( "TextMessage" ) );	if ( pMessage != NULL )	{		if ( pCapper != NULL )			pMessage->setText( CharString().format("Ship captured by %s...", pCapper->name()) );		else			pMessage->setText( "Ship captured..." );	}}

CharString GadgetBeamWeapon::useTip( Noun * pTarget, bool shift ) const{	if ( shift )		return "Toggle Point Defense.";		// usage information	CharString tip;	float fEnergyMod = calculateModifier( MT_BEAM_ENERGY );	float fChargeScale = damageRatioInv() * fEnergyMod;	tip += CharString().format("/nRecharge Time:   <X;100>%.1fs", energyCost() / ( ( energyCharge() * fChargeScale ) * TICKS_PER_SECOND ) );	tip += CharString().format("/nEnergy Cost:<X;100>%.1f", energyCost() / 1000.0f );	float fLength = length() * calculateModifier( MT_BEAM_RANGE );	tip += CharString().format("/nMax Range:<X;100>%.1fgu", fLength );		// direct damage	float fDamageMod = calculateModifier( MT_BEAM_DAMAGE );	float fDamage = damage() * fDamageMod;	if ( damageRandom() > 0 )	{		float fMaxDamage = fDamage + (damageRandom() * fDamageMod);		tip += CharString().format( "/nDamage:<X;100>%.0f-%.0f", fDamage * duration(), fMaxDamage * duration() );	}	else		tip += CharString().format( "/nDamage:<X;100>%.1f", fDamage * duration() );	return tip;}

CharString GadgetDrive::useTip( Noun * pTarget, bool shift ) const{	CharString tip;		// usage information	int generate = 0;	if ( active() )	{		generate = damageRatioInv() * this->energy();		// reduce energy based on velocity		NounShip * pShip = WidgetCast<NounShip>( parent() );		if ( pShip != NULL )		{			if ( energyFalloff() > 0 && pShip->maxVelocity() > 0.0f && pShip->velocity() > pShip->baseVelocity() )			{				float scale = ( pShip->velocity() - pShip->baseVelocity() ) / pShip->velocityRange();				generate -= ( energyFalloff() * scale) ;			}		}	}		tip += CharString().format("/nEnergy p/s:<X;100>%.1f", ( generate * TICKS_PER_SECOND ) / 1000.0f );	tip += CharString().format("/nEnergy Stored:<X;100>%.0f", maxEnergy() / 1000.0f );			return tip;}

bool ButtonCargo::onCursorMove( const RectInt & window, const PointInt & position, const PointInt & delta ){	if ( WindowButton::onCursorMove( window, position, delta ) )	{		GameDocument * pDoc = (GameDocument *)document();		ASSERT( pDoc );		NounShip * pShip = pDoc->ship();		if (! pShip )			return false;		Noun * pCargo = m_Cargo;		if (! pCargo )			return false;		pDoc->setLeftHint( CharString().format( "TARGET %s", pCargo->name() ) );		Noun * pTarget = pDoc->target();		if ( WidgetCast<CargoEnhancement>( pCargo ) 			&& VerbApplyEnhancement::canApply( (CargoEnhancement *)pCargo, pShip ) )			pDoc->setRightHint( CharString().format( "USE %s", pCargo->name() ) );		else if ( pTarget != NULL && pShip->canUnload( pTarget, pCargo ) )			pDoc->setRightHint( CharString().format( "UNLOAD %s ONTO %s", pCargo->name(), pTarget->name() ) );		else			pDoc->setRightHint( "" );		return true;	}	return false;}

Error PaymentService::purchase(Variant p_params) {	Dictionary params = p_params;	ERR_FAIL_COND_V((!params.has("product_id")) && (!params.has("product_sku")), ERR_INVALID_PARAMETER);	char* id = NULL;	char* sku = NULL;	CharString p_id = params.has("product_id")?String(params["product_id"]).ascii():CharString();	CharString p_sku = params.has("product_sku")?String(params["product_sku"]).ascii():CharString();	unsigned int request_id;	chdir(launch_dir_ptr);	int ret = paymentservice_purchase_request(params.has("product_sku") ? NULL : p_id.get_data(),											  params.has("product_sku") ? p_sku.get_data() : NULL,											  NULL, NULL, NULL, NULL, get_window_group_id(), &request_id);	chdir("app/native");	if (ret != BPS_SUCCESS) {		int eret = errno;		printf("purchase error %i, %x, %i, %x/n", ret, ret, eret, eret);		ERR_FAIL_V((Error)eret);		return (Error)eret;	};	return OK;};

CharString NounShip::status() const{	CharString sTargetInfo;	// team & ship type..	sTargetInfo += CharString().format("%s - %s/n", teamName(), nounContext()->name() );	// hull %	sTargetInfo += CharString().format("Hull: %d%%/n", int( damageRatioInv() * 100) );	int armor = 0, maxArmor = 0;	int shield = 0, maxShield = 0;	for(int i=0;i<childCount();i++)	{		BaseNode * pChild = child(i);		if ( WidgetCast<GadgetShield>( pChild ) )		{			shield += ((GadgetShield *)pChild)->charge();			maxShield += ((GadgetShield *)pChild)->maxCharge();		}		else if ( WidgetCast<GadgetArmor>( pChild ) )		{			armor += ((GadgetArmor *)pChild)->armor();			maxArmor += ((GadgetArmor *)pChild)->maxArmor();		}	}	if ( maxShield > 0 )		sTargetInfo += CharString().format("Shield: %d%%/n", (shield * 100) / maxShield);	if ( maxArmor > 0 )		sTargetInfo += CharString().format("Armor: %d%%/n", (armor * 100) / maxArmor );	return sTargetInfo;}

bool ProcessServer::loadProcessList(){	AutoLock lock( &m_Lock );	m_ProcessList.release();	Settings pf( "ProcessList", m_Context.processFile );	m_NextProcessId = pf.get( "NextProcessId", m_NextProcessId );	int nProcessCount = pf.get( "ProcessCount", (dword)0 );	for(int i=0;i<nProcessCount;i++)	{		Process process;		process.processId = pf.get( CharString().format("ProcessId%d", i), i + 1 );		process.name = pf.get( CharString().format("ProcessName%d", i), "" );		process.executable = pf.get( CharString().format("ProcessExe%d", i), "" );		process.arguments = pf.get( CharString().format("ProcessArg%d", i), "" );		process.config = pf.get( CharString().format("ProcessConfig%d", i), "" );		process.log = pf.get( CharString().format("ProcessLog%d", i), "" );				process.flags = (u16)pf.get( CharString().format("ProcessFlags%d", i), 0xffff );		if ( process.flags == 0xffff )		{			process.flags = 0;			if ( pf.get( CharString().format("ProcessRunning%d", i), (dword)0 ) != 0 )				process.flags |= ProcessClient::PF_RUNNING;			if ( pf.get( CharString().format("ProcessDisabled%d", i), (dword)1 ) != 0 )				process.flags |= ProcessClient::PF_DISABLED;		}		m_ProcessList.push( process );	}	return true;}

void EEditorManager::onComponentAction ( QAction* action ){	QString componentTypeName = action->text();	const QString& name = GetSelectObj();	EditorEvent editorevent;	editorevent.mType = action->isChecked() ? eEditorToScene_ComponentAttach		: eEditorToScene_ComponentDettach;	editorevent.mArgs.push_back ( CharString ( name.toStdString().c_str() ) );	editorevent.mArgs.push_back ( CharString ( componentTypeName.toStdString().c_str() ) );	Notify( editorevent );}

CharString GadgetArmor::useTip( Noun * pTarget, bool shift ) const{	CharString tip;		// usage information	tip += CharString().format("/nCurrent HP:<X;100>%d/%d", m_Armor, maxArmor() );	float fMod = ( calculateModifier( MT_DEFENSE ) * 100 ) - 100;	if ( fMod > 0 )		tip += CharString().format("/nDamage Reduction:<X;100>%.0f%%", fMod );	fMod = calculateModifier( MT_DEFENSE_RECHARGE );	return tip;}

void JukeboxDS::saveConfig(){	Settings config( ("Jukebox"), m_JukeboxConfig );	config.put( ("listCount"), m_PlayLists.size() );	for(int i=0;i<m_PlayLists.size();i++)	{		config.put( CharString().format(("List%dName"), i), m_PlayLists[i].name );		config.put( CharString().format(("List%dFileCount"), i ), m_PlayLists[i].files.size() );		for(int j=0;j<m_PlayLists[i].files.size();j++)			config.put( CharString().format(("List%dFile%d"), i, j), m_PlayLists[i].files[j] );	}}

void ButtonCargo::onUpdate( float t ){	WindowButton::onUpdate( t );	if ( enabled() )	{		Noun * pCargo = m_Cargo;		if (! pCargo )			return;		if ( WidgetCast<CargoEnhancement>( pCargo ) )		{			setTip(((CargoEnhancement *)pCargo)->status());			m_HotKey = 0;			return;		}		GameDocument * pDoc = (GameDocument *)document();		ASSERT( pDoc );		NounShip * pShip = pDoc->ship();		if (! pShip )			return;		bool validAction = false;		Noun * pTarget = pDoc->target();		if ( pTarget != NULL )		{			if ( pShip->canUnload( pTarget, pCargo ) )			{				setTip( CharString().format( "Unload %s onto %s", 					pCargo->name(), pTarget->name() ) );				setIconColor( WHITE );				validAction = true;				m_HotKey = 'U';			}		}		if ( !validAction )		{			if ( WidgetCast<NounUnit>( pCargo ) )				setTip( CharString().format("%s %s", pCargo->name(), ((NounUnit *)pCargo)->status() ) );			else				setTip( pCargo->name() );			setIconColor( GREY );			m_HotKey = 0;		}	}}

bool JukeboxDS::initialize( const char * pFilePath, int volume ){	release();	// build the file list	m_FilePath = Path( pFilePath ).directory();	if (! m_FilePath.endsWith(("//")) )		m_FilePath += ("//");	m_JukeboxConfig = m_FilePath + ("config.ini");	// load the jukebox configuration if the file exists	if ( FileDisk::fileExists( m_JukeboxConfig ) )	{		Settings config( ("Jukebox"), m_JukeboxConfig );		int listCount = config.get( ("listCount"), (dword)0 );		for(int i=0;i<listCount;i++)		{			int newList = addPlayList( config.get( CharString().format( ("List%dName"), i ), ("") ) );			int fileCount = config.get( CharString().format(("List%dFileCount"), i ), (dword)0 );			for(int j=0;j<fileCount;j++)				addTrack( newList, config.get( CharString().format(("List%dFile%d"), i, j), ("")) );		}	}	else	{		// create a default playlist with all mp3 files in the directory		addTrack( addPlayList( ("Default") ), m_FilePath + ("*.mp3") );		// save configuration		//saveConfig();	}	if ( !m_PlayLists.isValid( 0 ) )		return false;	if ( !m_PlayLists[ 0 ].files.isValid( 0 ) )		return false;	m_ActiveList = 0;	m_CurrentTrack = 0;	m_Volume = Clamp( volume, 0, 100 );	// start the thread	play();	return true;}

void ProcessServer::onConnect( dword client ){	LOG_STATUS( "ProcessServer", CharString().format("Connecting client %u from %s", client, clientAddress( client )) );	AutoLock lock( &m_Lock );	m_ClientValid[ client ] = false;}

void WindowButton::updateTip(){	if ( m_HotKey != 0 )		updateTip( CharString().format("%s  '%s'", m_Tip, keyText( Keyboard::unmap( m_HotKey ) ) ) );	else		updateTip( m_Tip );}

bool ButtonGadget::onCursorMove( const RectInt & window, const PointInt & position, const PointInt & delta ){	if ( WindowButton::onCursorMove( window, position, delta ) )	{		GameDocument * pDoc = (GameDocument *)document();		ASSERT( pDoc );				pDoc->setLeftHint( CharString().format( "TARGET %s", m_Gadget->name() ) );		pDoc->setRightHint( CharString().format( "USE %s", m_Gadget->name() ) );		m_bCursorOver = true;		return true;	}	m_bCursorOver = false;	return false;}

CharString &CharString::append(const char *s, int32_t sLength, UErrorCode &errorCode) {    if(U_FAILURE(errorCode)) {        return *this;    }    if(sLength<-1 || (s==NULL && sLength!=0)) {        errorCode=U_ILLEGAL_ARGUMENT_ERROR;        return *this;    }    if(sLength<0) {        sLength=uprv_strlen(s);    }    if(sLength>0) {        if(s==(buffer.getAlias()+len)) {            // The caller wrote into the getAppendBuffer().            if(sLength>=(buffer.getCapacity()-len)) {                // The caller wrote too much.                errorCode=U_INTERNAL_PROGRAM_ERROR;            } else {                buffer[len+=sLength]=0;            }        } else if(buffer.getAlias()<=s && s<(buffer.getAlias()+len) &&                  sLength>=(buffer.getCapacity()-len)        ) {            // (Part of) this string is appended to itself which requires reallocation,            // so we have to make a copy of the substring and append that.            return append(CharString(s, sLength, errorCode), errorCode);        } else if(ensureCapacity(len+sLength+1, 0, errorCode)) {            uprv_memcpy(buffer.getAlias()+len, s, sLength);            buffer[len+=sLength]=0;        }    }    return *this;}

godot_char_string GDAPI godot_string_ascii(const godot_string *p_self) {	const String *self = (const String *)p_self;	godot_char_string result;	memnew_placement(&result, CharString(self->ascii()));	return result;}

CharString DatabaseMYSQL::field(QueryHandle hQuery, int f ) const{	QueryResult * pQuery = (QueryResult *)hQuery;	if ( pQuery == NULL || pQuery->pResult == NULL )		return "";	MYSQL_FIELD * pField = mysql_fetch_field_direct( pQuery->pResult, f );	return pField != NULL ? CharString( pField->name ) : "";}

void LogClient::onDisconnect(){	LOG_STATUS( "LogClient", CharString().format( "LogClient disconnected from %s:%d", (const char *)m_sAddress, m_nPort) );	m_bLoggedIn = false;	m_bConnected = false;	m_nLogLevel = LL_STATUS;}

void CChatFrame::OnJoinRoom( UINT nID ){	clearIdleTime();	int roomIndex = nID - ID_ROOM_BEGIN;	if ( roomIndex < 0 || roomIndex >= m_Rooms.size() )		return;	MetaClient & client = CGCQLApp::sm_MetaClient;	CharString password;	if ( (m_Rooms[ roomIndex ].flags & MetaClient::FLAG_ROOM_PASSWORD) != 0 )		if ( (client.profile().flags & MetaClient::MODERATOR) == 0 )		{			CRoomPassword dialog( this );			if ( dialog.DoModal() != IDOK )				return;			password = dialog.m_Password;		}	// leave our previous room..	if ( m_nRoomId != 0 )	{		client.leaveRoom( m_nRoomId );		m_nRoomId = 0;	}	// join chat room	if ( (m_nRoomId = client.joinRoom( m_Rooms[ roomIndex ].roomId, password ) ) != 0 )	{		// post local message, so the client can know that they have joined a room		client.sendLocalChat( CharString().format("/Joining '%s'...", m_Rooms[ roomIndex ].name ) );		if ( CGCQLApp::sm_RoomAnnounce )			client.sendChat( m_nRoomId, CharString().format("/me has entered the room...", client.profile().name) );		// set my status		client.sendStatus( CharString().format("Chatting in '%s'", m_Rooms[ roomIndex ].name.cstr() ) );	}	else	{		client.sendLocalChat( "Failed to join chat room!" );	}}

void GameDocument::onPreUpdate(){	// display number of lines and triangles rendered	Profiler::message( 4, CharString().format("Triangles Rendered: %u, Lines Rendered: %u", 		DisplayDevice::sm_nTrianglesRendered, DisplayDevice::sm_nLinesRendered) );	// reset the triangle / line counters	DisplayDevice::sm_nTrianglesRendered = DisplayDevice::sm_nLinesRendered = 0;}

void GadgetScript::use( dword when, Noun * pTarget, bool shift ){	Text * pText = getScript();	if ( pText != NULL )	{		message( "Running script..." );		context()->runScript( UniqueNumber(), "GadgetScript", CharString( pText->text() ) );	}}

void VerbSetStructureActive::onExecute(){	NounStructure * pStructure = WidgetCast<NounStructure>( target() );	if ( validate( pStructure ) )	{		pStructure->setActive( m_bActive );		if ( pStructure->isServer() && validate( m_pWho ) && validate( pStructure->planet() ) )		{			NounPlanet * pPlanet = pStructure->planet();			ASSERT( pPlanet );			pStructure->factionChat( m_bActive ? 				CharString().format( "<color;ffffff>Comms: %s %s activated by %s.", pPlanet->name(), pStructure->name(), m_pWho->name()) :				CharString().format( "<color;ffffff>Comms: %s %s deactivated by %s.", pPlanet->name(), pStructure->name(), m_pWho->name()) );		}	}}

void GadgetELF::use( dword when, Noun * pTarget, bool shift){	if ( active() )		NounGadget::use( when, pTarget, shift );	// set the device active	setFlags( FLAG_ACTIVE, !active() );	message( CharString().format( "<color;ffffff>Tactical: %s %s.", name(), active() ? "Active" : "Inactive" ) ); }

void GameDocument::onServerTransfer( const WorldClient::TransferRequest & a_Req ){#ifdef _DEBUG	Settings settings( "ClientD" );#else	Settings settings( "Client" );#endif	settings.put( "transferAddress", CharString().format( "%s:%d", a_Req.m_sAddress, a_Req.m_nPort) );	setGameState( GS_SERVER_TRANSFER );}