C++ String::lastChar方法代码示例

Common::String DefaultSaveFileManager::concatWithSavesPath(Common::String name) {
	DefaultSaveFileManager *manager = dynamic_cast<DefaultSaveFileManager *>(g_system->getSavefileManager());
	Common::String path = (manager ? manager->getSavePath() : ConfMan.get("savepath"));
	if (path.size() > 0 && (path.lastChar() == '/' || path.lastChar() == '\\'))
		return path + name;

	//simple heuristic to determine which path separator to use
	int backslashes = 0;
	for (uint32 i = 0; i < path.size(); ++i)
		if (path[i] == '/') --backslashes;
		else if (path[i] == '\\') ++backslashes;

	if (backslashes > 0) return path + '\\' + name;
	return path + '/' + name;
}

void SavesSyncRequest::start() {
	//cleanup
	_ignoreCallback = true;
	if (_workingRequest)
		_workingRequest->finish();
	_currentDownloadingFile = StorageFile();
	_currentUploadingFile = "";
	_filesToDownload.clear();
	_filesToUpload.clear();
	_localFilesTimestamps.clear();
	_totalFilesToHandle = 0;
	_ignoreCallback = false;

	//load timestamps
	_localFilesTimestamps = DefaultSaveFileManager::loadTimestamps();

	//list saves directory
	Common::String dir = _storage->savesDirectoryPath();
	if (dir.lastChar() == '/')
		dir.deleteLastChar();
	_workingRequest = _storage->listDirectory(
		dir,
		new Common::Callback<SavesSyncRequest, Storage::ListDirectoryResponse>(this, &SavesSyncRequest::directoryListedCallback),
		new Common::Callback<SavesSyncRequest, Networking::ErrorResponse>(this, &SavesSyncRequest::directoryListedErrorCallback)
	);
	if (!_workingRequest) finishError(Networking::ErrorResponse(this));
}

void SavesSyncRequest::directoryListedErrorCallback(Networking::ErrorResponse error) {
	_workingRequest = nullptr;
	if (_ignoreCallback)
		return;

	bool irrecoverable = error.interrupted || error.failed;
	if (error.failed) {
		Common::JSONValue *value = Common::JSON::parse(error.response.c_str());
		if (value) {
			if (value->isObject()) {
				Common::JSONObject object = value->asObject();

				//Dropbox-related error:
				if (object.contains("error_summary") && object.getVal("error_summary")->isString()) {
					Common::String summary = object.getVal("error_summary")->asString();
					if (summary.contains("not_found")) {
						irrecoverable = false;
					}
				}

				//OneDrive-related error:
				if (object.contains("error") && object.getVal("error")->isObject()) {
					Common::JSONObject errorNode = object.getVal("error")->asObject();
					if (Networking::CurlJsonRequest::jsonContainsString(errorNode, "code", "SavesSyncRequest")) {
						Common::String code = errorNode.getVal("code")->asString();
						if (code == "itemNotFound") {
							irrecoverable = false;
						}
					}
				}
			}
			delete value;
		}

		//Google Drive and Box-related ScummVM-based error
		if (error.response.contains("subdirectory not found")) {
			irrecoverable = false; //base "/ScummVM/" folder not found
		} else if (error.response.contains("no such file found in its parent directory")) {
			irrecoverable = false; //"Saves" folder within "/ScummVM/" not found
		}
	}

	if (irrecoverable) {
		finishError(error);
		return;
	}

	//we're lucky - user just lacks his "/cloud/" folder - let's create one
	Common::String dir = _storage->savesDirectoryPath();
	if (dir.lastChar() == '/')
		dir.deleteLastChar();
	debug(9, "SavesSyncRequest: creating %s", dir.c_str());
	_workingRequest = _storage->createDirectory(
		dir,
		new Common::Callback<SavesSyncRequest, Storage::BoolResponse>(this, &SavesSyncRequest::directoryCreatedCallback),
		new Common::Callback<SavesSyncRequest, Networking::ErrorResponse>(this, &SavesSyncRequest::directoryCreatedErrorCallback)
	);
	if (!_workingRequest)
		finishError(Networking::ErrorResponse(this));
}

Ps2FilesystemNode::Ps2FilesystemNode(const Common::String &path) {
	dbg_printf("NEW FSNODE(%s)\n", path.c_str());

	_path = path;

	if (path.empty()) {
		_isHere = true;
		_isDirectory = true; /* root is always a dir */
		_isRoot = true;
		_displayName = Common::String("PlayStation 2");
		_verified = true;
	} else if (path.lastChar() == ':') {
		_isHere = true;
		_isDirectory = true; /* devs are always a dir */
		_isRoot = false;
		_displayName = getDeviceDescription();
		_verified = true;
	} else {
		_verified = false;
		doverify();
		if (!_isHere)
			return;

		_displayName = _lastPathComponent(_path);

		if (_isDirectory && _path.lastChar() != '/')
			_path+= '/';

		_isRoot = false;
	}
}

bool LabelCommandParser::parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) {
	if (line.lastChar() != ':') {
		return false;
	}

	Common::String label = line;
	label.deleteLastChar();

	LabelCommand *labelCmd = new LabelCommand(label);
	if (!parseCtx._labels.contains(label)) {
		parseCtx._labels[label] = labelCmd;
	} else {
		warning("Label '%s' already exists", label.c_str());
	}

	if (parseCtx._pendingGotos.contains(label)) {
		GotoCommands &gotos = parseCtx._pendingGotos[label];
		for (GotoCommands::const_iterator it = gotos.begin(); it != gotos.end(); ++it) {
			(*it)->setLabelCommand(labelCmd);
		}
		gotos.clear();
	}

	command = labelCmd;
	return true;
}

bool ThemeEngine::themeConfigParseHeader(Common::String header, Common::String &themeName) {
	// Check that header is not corrupted
	if ((byte)header[0] > 127) {
		warning("Corrupted theme header found");
		return false;
	}

	header.trim();

	if (header.empty())
		return false;

	if (header[0] != '[' || header.lastChar() != ']')
		return false;

	header.deleteChar(0);
	header.deleteLastChar();

	Common::StringTokenizer tok(header, ":");

	if (tok.nextToken() != SCUMMVM_THEME_VERSION_STR)
		return false;

	themeName = tok.nextToken();
	Common::String author = tok.nextToken();

	return tok.empty();
}

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));
}

Common::InSaveFile *GBAMPSaveFileManager::openForLoading(const Common::String &filename) {
	Common::String fileSpec = getSavePath();
	if (fileSpec.lastChar() != '/')
		fileSpec += '/';
	fileSpec += filename;

//	consolePrintf("Opening the file: %s\n", fileSpec.c_str());

	return DS::DSFileStream::makeFromPath(fileSpec, false);
}

Common::OutSaveFile *GBAMPSaveFileManager::openForSaving(const Common::String &filename, bool compress) {
	Common::String fileSpec = getSavePath();
	if (fileSpec.lastChar() != '/')
		fileSpec += '/';
	fileSpec += filename;

//	consolePrintf("Opening the file: %s\n", fileSpec.c_str());

	Common::WriteStream *stream = DS::DSFileStream::makeFromPath(fileSpec, true);
	// Use a write buffer
	stream = Common::wrapBufferedWriteStream(stream, SAVE_BUFFER_SIZE);
	return new OutSaveFile(stream);
}

AbstractFSNode *WindowsFilesystemNode::getChild(const Common::String &n) const {
	assert(_isDirectory);

	// Make sure the string contains no slashes
	assert(!n.contains('/'));

	Common::String newPath(_path);
	if (_path.lastChar() != '\\')
		newPath += '\\';
	newPath += n;

	return new WindowsFilesystemNode(newPath, false);
}

BadaFilesystemNode::BadaFilesystemNode(const Common::String &root,
																			 const Common::String &nodePath) {
	// Make sure the string contains no slashes
	AppAssert(!nodePath.contains('/'));

	// We assume here that path is already normalized (hence don't bother to
	// call Common::normalizePath on the final path).
	Common::String newPath(root);
	if (root.lastChar() != '/') {
		newPath += '/';
	}
	newPath += nodePath;

	init(newPath);
}

Common::String ScummEngine_v60he::convertFilePath(const byte *src) {
	debug(2, "convertFilePath in: '%s'", (const char *)src);

	int srcSize = resStrLen(src);
	int start = 0;

	if (srcSize > 2) {
		if (src[0] == ':') { // Game Data Path (Macintosh)
			// The default game data path is set to ':' by ScummVM
			start = 1;
		} else if (src[0] == '.' && src[1] == '\\') { // Game Data Path (Windows)
			// The default game data path is set to '.\\' by ScummVM
			start = 2;
		} else if (src[0] == '*' && src[1] == '\\') { // Save Game Path (Windows HE72 - HE100)
			// The default save game path is set to '*\\' by ScummVM
			start = 2;
		} else if (src[0] == '*' && src[1] == ':') { // Save Game Path (Macintosh HE72 - HE100)
			// The default save game path is set to '*:' by ScummVM
			start = 2;
		} else if (src[0] == 'c' && src[1] == ':') { // Save Game Path (HE60 - HE71)
			// The default save path is game path (DOS) or 'c:\\hegames\\' (Windows)
			for (start = srcSize; start != 0; start--)
				if (src[start - 1] == '\\')
					break;
		} else if (src[0] == 'u' && src[1] == 's') { // Save Game Path (Moonbase Commander)
			// The default save path is 'user\\'
			start = 5;
		}
	}

	Common::String dst;

	for (int i = start; i < srcSize; i++) {
		// Convert path separators
		if (src[i] == '\\' || src[i] == ':')
			dst += '/';
		else
			dst += src[i];
	}

	// Sanity check
	if (dst.lastChar() == '/')
		dst.deleteLastChar();

	debug(2, "convertFilePath out: '%s'", dst.c_str());

	return dst;
}

Common::String normalizePath(const Common::String &path, const char sep) {
	if (path.empty())
		return path;

	const char *cur = path.c_str();
	Common::String result;

	// If there is a leading slash, preserve that:
	if (*cur == sep) {
		result += sep;
		while (*cur == sep)
			++cur;
	}

	// Scan till the end of the String
	while (*cur != 0) {
		const char *start = cur;

		// Scan till the next path separator resp. the end of the string
		while (*cur != sep && *cur != 0)
			cur++;

		const Common::String component(start, cur);

		// Skip empty components and dot components, add all others
		if (!component.empty() && component != ".") {
			// Add a separator before the component, unless the result
			// string already ends with one (which happens only if the
			// path *starts* with a separator).
			if (!result.empty() && result.lastChar() != sep)
				result += sep;

			// Add the component
			result += component;
		}

		// Skip over separator chars
		while (*cur == sep)
			cur++;
	}

	return result;
}

static void composeFileHashMap(const Common::FSList &fslist, FileMap &allFiles, int depth, const char * const *directoryGlobs) {
    if (depth <= 0)
        return;

    if (fslist.empty())
        return;

    // First we compose a hashmap of all files in fslist.
    // Includes nifty stuff like removing trailing dots and ignoring case.
    for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
        if (file->isDirectory()) {
            Common::FSList files;

            if (!directoryGlobs)
                continue;

            bool matched = false;
            for (const char * const *glob = directoryGlobs; *glob; glob++)
                if (file->getName().matchString(*glob, true)) {
                    matched = true;
                    break;
                }

            if (!matched)
                continue;

            if (!file->getChildren(files, Common::FSNode::kListAll))
                continue;

            composeFileHashMap(files, allFiles, depth - 1, directoryGlobs);
        }

        Common::String tstr = file->getName();

        // Strip any trailing dot
        if (tstr.lastChar() == '.')
            tstr.deleteLastChar();

        allFiles[tstr] = *file;	// Record the presence of this file
    }
}

bool ThemeEngine::themeConfigParseHeader(Common::String header, Common::String &themeName) {
	header.trim();

	if (header.empty())
		return false;

	if (header[0] != '[' || header.lastChar() != ']')
		return false;

	header.deleteChar(0);
	header.deleteLastChar();

	Common::StringTokenizer tok(header, ":");

	if (tok.nextToken() != RESIDUAL_THEME_VERSION_STR)
		return false;

	themeName = tok.nextToken();
	Common::String author = tok.nextToken();

	return tok.empty();
}