C++ String::erase方法代码示例

bool FilesPageHandler::listDirectory(Common::String path, Common::String &content, const Common::String &itemTemplate) {
	if (path == "" || path == "/") {
		if (ConfMan.hasKey("rootpath", "cloud"))
			addItem(content, itemTemplate, IT_DIRECTORY, "/root/", _("File system root"));
		addItem(content, itemTemplate, IT_DIRECTORY, "/saves/", _("Saved games"));
		return true;
	}

	if (HandlerUtils::hasForbiddenCombinations(path))
		return false;

	Common::String prefixToRemove = "", prefixToAdd = "";
	if (!transformPath(path, prefixToRemove, prefixToAdd))
		return false;

	Common::FSNode node = Common::FSNode(path);
	if (path == "/")
		node = node.getParent(); // absolute root

	if (!HandlerUtils::permittedPath(node.getPath()))
		return false;

	if (!node.isDirectory())
		return false;

	// list directory
	Common::FSList _nodeContent;
	if (!node.getChildren(_nodeContent, Common::FSNode::kListAll, false)) // do not show hidden files
		_nodeContent.clear();
	else
		Common::sort(_nodeContent.begin(), _nodeContent.end());

	// add parent directory link
	{
		Common::String filePath = path;
		if (filePath.hasPrefix(prefixToRemove))
			filePath.erase(0, prefixToRemove.size());
		if (filePath == "" || filePath == "/" || filePath == "\\")
			filePath = "/";
		else
			filePath = parentPath(prefixToAdd + filePath);
		addItem(content, itemTemplate, IT_PARENT_DIRECTORY, filePath, _("Parent directory"));
	}

	// fill the content
	for (Common::FSList::iterator i = _nodeContent.begin(); i != _nodeContent.end(); ++i) {
		Common::String name = i->getDisplayName();
		if (i->isDirectory())
			name += "/";

		Common::String filePath = i->getPath();
		if (filePath.hasPrefix(prefixToRemove))
			filePath.erase(0, prefixToRemove.size());
		filePath = prefixToAdd + filePath;

		addItem(content, itemTemplate, detectType(i->isDirectory(), name), filePath, name);
	}

	return true;
}

void FMVScreen::play(const Common::String &name) {
	Common::SeekableReadStream *stream = nullptr;

	// Play the low-resolution video, if possible
	if (!StarkSettings->getBoolSetting(Settings::kHighFMV) && StarkSettings->hasLowResFMV()) {
		Common::String lowResName = name;
		lowResName.erase(lowResName.size() - 4);
		lowResName += "_lo_res.bbb";

		stream = StarkArchiveLoader->getExternalFile(lowResName, "Global/");
		if (!stream) {
			debug("Could not open %s", lowResName.c_str());
		}
	}

	// Play the original video
	if (!stream) {
		stream = StarkArchiveLoader->getExternalFile(name, "Global/");
	}

	if (!stream) {
		warning("Could not open %s", name.c_str());
		return;
	}

	_decoder->loadStream(stream);
	if (!_decoder->isVideoLoaded()) {
		error("Could not open %s", name.c_str());
	}
	_decoder->start();
}

void Music::getSongNames(Common::StringArray &songs) {
	songs.clear();
	if (IS_SERRATED_SCALPEL) {
		if (IS_3DO) {
			Common::FSDirectory gameDirectory(ConfMan.get("path"));
			Common::FSDirectory *musicDirectory = gameDirectory.getSubDirectory("music");
			Common::ArchiveMemberList files;

			musicDirectory->listMatchingMembers(files, "*_mw22.aifc");

			for (Common::ArchiveMemberList::iterator i = files.begin(); i != files.end(); ++i) {
				Common::String name = (*i)->getName();
				name.erase(name.size() - 10);
				songs.push_back(name);
			}
		} else {
			for (int i = 0; i < ARRAYSIZE(SONG_NAMES); i++) {
				songs.push_back(SONG_NAMES[i]);
			}
		}
	} else {
		Common::StringArray fileList;
		_vm->_res->getResourceNames("music.lib", fileList);
		for (Common::StringArray::iterator i = fileList.begin(); i != fileList.end(); ++i) {
			if ((*i).matchString("*.XMI", true)) {
				(*i).erase((*i).size() - 4);
				songs.push_back(*i);
			}
		}
	}
	Common::sort(songs.begin(), songs.end());
}

void IdCreateDirectoryRequest::idResolveFailedCallback(Networking::ErrorResponse error) {
	_workingRequest = nullptr;
	if (_ignoreCallback)
		return;
	if (error.request)
		_date = error.request->date();

	//not resolved => folder not exists
	if (error.response.contains("no such file found in its parent directory")) {
		//parent's id after the '\n'
		Common::String parentId = error.response;
		for (uint32 i = 0; i < parentId.size(); ++i)
			if (parentId[i] == '\n') {
				parentId.erase(0, i + 1);
				break;
			}

		Storage::BoolCallback callback = new Common::Callback<IdCreateDirectoryRequest, Storage::BoolResponse>(this, &IdCreateDirectoryRequest::createdDirectoryCallback);
		Networking::ErrorCallback failureCallback = new Common::Callback<IdCreateDirectoryRequest, Networking::ErrorResponse>(this, &IdCreateDirectoryRequest::createdDirectoryErrorCallback);
		_workingRequest = _storage->createDirectoryWithParentId(parentId, _requestedDirectoryName, callback, failureCallback);
		return;
	}

	finishError(error);
}

void PDAMgr::calculateIndexes() {
	Common::String country = Common::String::format("%.3s", _page->getName().c_str());
	for (uint i = 0; i < 6; ++i) {
		if (country == g_countries[i]) {
			_countryIndex = i;
			break;
		}
	}

	Common::String domain = _page->getName();
	domain.erase(0, 3);
	if (domain.size() >= 4)
		domain.erase(3);
	for (uint i = 0; i < 8; ++i) {
		if (domain == g_domains[i]) {
			_domainIndex = i;
			break;
		}
	}
}

void FolderDownloadRequest::downloadNextFile() {
	do {
		if (_pendingFiles.empty()) {
			sendCommand(GUI::kDownloadEndedCmd, 0);
			finishDownload(_failedFiles);
			return;
		}

		_currentFile = _pendingFiles.back();
		_pendingFiles.pop_back();
	} while (_currentFile.isDirectory()); // directories are actually removed earlier, in the directoryListedCallback()

	sendCommand(GUI::kDownloadProgressCmd, (int)(getProgress() * 100));

	Common::String remotePath = _currentFile.path();
	Common::String localPath = remotePath;
	if (_remoteDirectoryPath == "" || remotePath.hasPrefix(_remoteDirectoryPath)) {
		localPath.erase(0, _remoteDirectoryPath.size());
		if (_remoteDirectoryPath != "" && (_remoteDirectoryPath.lastChar() != '/' && _remoteDirectoryPath.lastChar() != '\\'))
			localPath.erase(0, 1);
	} else {
		warning("FolderDownloadRequest: Can't process the following paths:");
		warning("remote directory: %s", _remoteDirectoryPath.c_str());
		warning("remote file under that directory: %s", remotePath.c_str());
	}
	if (_localDirectoryPath != "") {
		if (_localDirectoryPath.lastChar() == '/' || _localDirectoryPath.lastChar() == '\\')
			localPath = _localDirectoryPath + localPath;
		else
			localPath = _localDirectoryPath + "/" + localPath;
	}
	debug(9, "FolderDownloadRequest: %s -> %s", remotePath.c_str(), localPath.c_str());
	_workingRequest = _storage->downloadById(
		_currentFile.id(), localPath,
		new Common::Callback<FolderDownloadRequest, Storage::BoolResponse>(this, &FolderDownloadRequest::fileDownloadedCallback),
		new Common::Callback<FolderDownloadRequest, Networking::ErrorResponse>(this, &FolderDownloadRequest::fileDownloadedErrorCallback)
	);
}

Networking::Request *IdStorage::createDirectory(Common::String path, BoolCallback callback, Networking::ErrorCallback errorCallback) {
	if (!errorCallback)
		errorCallback = getErrorPrintingCallback();
	if (!callback)
		callback = new Common::Callback<IdStorage, BoolResponse>(this, &IdStorage::printBool);

	//find out the parent path and directory name
	Common::String parentPath = "", directoryName = path;
	for (uint32 i = path.size(); i > 0; --i) {
		if (path[i - 1] == '/' || path[i - 1] == '\\') {
			parentPath = path;
			parentPath.erase(i - 1);
			directoryName.erase(0, i);
			break;
		}
	}

	return addRequest(new IdCreateDirectoryRequest(this, parentPath, directoryName, callback, errorCallback));
}

void RemoteBrowserDialog::goUp() {
	if (_rememberedNodeContents.contains(_node.path()))
		_rememberedNodeContents.erase(_node.path());

	Common::String path = _node.path();
	if (path.size() && (path.lastChar() == '/' || path.lastChar() == '\\'))
		path.deleteLastChar();
	if (path.empty()) {
		_rememberedNodeContents.erase("");
	} else {
		for (int i = path.size() - 1; i >= 0; --i)
			if (i == 0 || path[i] == '/' || path[i] == '\\') {
				path.erase(i);
				break;
			}
	}

	listDirectory(Cloud::StorageFile(path, 0, 0, true));
}

bool DumpFile::open(const String &filename, bool createPath) {
	assert(!filename.empty());
	assert(!_handle);

	if (createPath) {
		for (uint32 i = 0; i < filename.size(); ++i) {
			if (filename[i] == '/' || filename[i] == '\\') {
				Common::String subpath = filename;
				subpath.erase(i);
				if (subpath.empty()) continue;
				AbstractFSNode *node = g_system->getFilesystemFactory()->makeFileNodePath(subpath);
				if (node->exists()) continue;
				if (!node->create(true)) warning("DumpFile: unable to create directories from path prefix");
			}
		}
	}

	FSNode node(filename);
	return open(node);
}

void IdCreateDirectoryRequest::start() {
	//cleanup
	_ignoreCallback = true;
	if (_workingRequest)
		_workingRequest->finish();
	_workingRequest = nullptr;
	_ignoreCallback = false;

	//the only exception when we create parent folder - is when it's ScummVM/ base folder
	Common::String prefix = _requestedParentPath;
	if (prefix.size() > 7)
		prefix.erase(7);
	if (prefix.equalsIgnoreCase("ScummVM")) {
		Storage::BoolCallback callback = new Common::Callback<IdCreateDirectoryRequest, Storage::BoolResponse>(this, &IdCreateDirectoryRequest::createdBaseDirectoryCallback);
		Networking::ErrorCallback failureCallback = new Common::Callback<IdCreateDirectoryRequest, Networking::ErrorResponse>(this, &IdCreateDirectoryRequest::createdBaseDirectoryErrorCallback);
		_workingRequest = _storage->createDirectory("ScummVM", callback, failureCallback);
		return;
	}

	resolveId();
}

void GoogleDriveUploadRequest::idResolveFailedCallback(Networking::ErrorResponse error) {
	_workingRequest = nullptr;
	if (_ignoreCallback)
		return;

	//not resolved => error or no such file
	if (error.response.contains("no such file found in its parent directory")) {
		//parent's id after the '\n'
		Common::String parentId = error.response;
		for (uint32 i = 0; i < parentId.size(); ++i)
			if (parentId[i] == '\n') {
				parentId.erase(0, i + 1);
				break;
			}

		_parentId = parentId;
		startUpload();
		return;
	}

	finishError(error);
}

void GoogleDriveUploadRequest::startUpload() {
	Common::String name = _savePath;
	for (uint32 i = name.size(); i > 0; --i) {
		if (name[i - 1] == '/' || name[i - 1] == '\\') {
			name.erase(0, i);
			break;
		}
	}

	Common::String url = GOOGLEDRIVE_API_FILES;
	if (_resolvedId != "")
		url += "/" + ConnMan.urlEncode(_resolvedId);
	url += "?uploadType=resumable&fields=id,mimeType,modifiedTime,name,size";
	Networking::JsonCallback callback = new Common::Callback<GoogleDriveUploadRequest, Networking::JsonResponse>(this, &GoogleDriveUploadRequest::startUploadCallback);
	Networking::ErrorCallback failureCallback = new Common::Callback<GoogleDriveUploadRequest, Networking::ErrorResponse>(this, &GoogleDriveUploadRequest::startUploadErrorCallback);
	Networking::CurlJsonRequest *request = new GoogleDriveTokenRefresher(_storage, callback, failureCallback, url.c_str());
	request->addHeader("Authorization: Bearer " + _storage->accessToken());
	request->addHeader("Content-Type: application/json");
	if (_resolvedId != "")
		request->usePatch();

	Common::JSONObject jsonRequestParameters;
	if (_resolvedId != "") {
		jsonRequestParameters.setVal("id", new Common::JSONValue(_resolvedId));
	} else {
		Common::JSONArray parentsArray;
		parentsArray.push_back(new Common::JSONValue(_parentId));
		jsonRequestParameters.setVal("parents", new Common::JSONValue(parentsArray));
	}
	jsonRequestParameters.setVal("name", new Common::JSONValue(name));

	Common::JSONValue value(jsonRequestParameters);
	request->addPostField(Common::JSON::stringify(&value));

	_workingRequest = ConnMan.addRequest(request);
}