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Current Path : /opt/alt/php53/usr/share/pear/Symfony/Component/Console/ |
Current File : //opt/alt/php53/usr/share/pear/Symfony/Component/Console/Application.php |
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console; use Symfony\Component\Console\Descriptor\TextDescriptor; use Symfony\Component\Console\Descriptor\XmlDescriptor; use Symfony\Component\Console\Input\InputInterface; use Symfony\Component\Console\Input\ArgvInput; use Symfony\Component\Console\Input\ArrayInput; use Symfony\Component\Console\Input\InputDefinition; use Symfony\Component\Console\Input\InputOption; use Symfony\Component\Console\Input\InputArgument; use Symfony\Component\Console\Input\InputAwareInterface; use Symfony\Component\Console\Output\BufferedOutput; use Symfony\Component\Console\Output\OutputInterface; use Symfony\Component\Console\Output\ConsoleOutput; use Symfony\Component\Console\Output\ConsoleOutputInterface; use Symfony\Component\Console\Command\Command; use Symfony\Component\Console\Command\HelpCommand; use Symfony\Component\Console\Command\ListCommand; use Symfony\Component\Console\Helper\HelperSet; use Symfony\Component\Console\Helper\FormatterHelper; use Symfony\Component\Console\Helper\DialogHelper; use Symfony\Component\Console\Helper\ProgressHelper; use Symfony\Component\Console\Helper\TableHelper; use Symfony\Component\Console\Event\ConsoleCommandEvent; use Symfony\Component\Console\Event\ConsoleExceptionEvent; use Symfony\Component\Console\Event\ConsoleTerminateEvent; use Symfony\Component\EventDispatcher\EventDispatcherInterface; /** * An Application is the container for a collection of commands. * * It is the main entry point of a Console application. * * This class is optimized for a standard CLI environment. * * Usage: * * $app = new Application('myapp', '1.0 (stable)'); * $app->add(new SimpleCommand()); * $app->run(); * * @author Fabien Potencier <fabien@symfony.com> * * @api */ class Application { private $commands = array(); private $wantHelps = false; private $runningCommand; private $name; private $version; private $catchExceptions = true; private $autoExit = true; private $definition; private $helperSet; private $dispatcher; private $terminalDimensions; /** * Constructor. * * @param string $name The name of the application * @param string $version The version of the application * * @api */ public function __construct($name = 'UNKNOWN', $version = 'UNKNOWN') { $this->name = $name; $this->version = $version; $this->helperSet = $this->getDefaultHelperSet(); $this->definition = $this->getDefaultInputDefinition(); foreach ($this->getDefaultCommands() as $command) { $this->add($command); } } public function setDispatcher(EventDispatcherInterface $dispatcher) { $this->dispatcher = $dispatcher; } /** * Runs the current application. * * @param InputInterface $input An Input instance * @param OutputInterface $output An Output instance * * @return integer 0 if everything went fine, or an error code * * @throws \Exception When doRun returns Exception * * @api */ public function run(InputInterface $input = null, OutputInterface $output = null) { if (null === $input) { $input = new ArgvInput(); } if (null === $output) { $output = new ConsoleOutput(); } $this->configureIO($input, $output); try { $exitCode = $this->doRun($input, $output); } catch (\Exception $e) { if (!$this->catchExceptions) { throw $e; } if ($output instanceof ConsoleOutputInterface) { $this->renderException($e, $output->getErrorOutput()); } else { $this->renderException($e, $output); } $exitCode = $e->getCode(); if (is_numeric($exitCode)) { $exitCode = (int) $exitCode; if (0 === $exitCode) { $exitCode = 1; } } else { $exitCode = 1; } } if ($this->autoExit) { if ($exitCode > 255) { $exitCode = 255; } // @codeCoverageIgnoreStart exit($exitCode); // @codeCoverageIgnoreEnd } return $exitCode; } /** * Runs the current application. * * @param InputInterface $input An Input instance * @param OutputInterface $output An Output instance * * @return integer 0 if everything went fine, or an error code */ public function doRun(InputInterface $input, OutputInterface $output) { if (true === $input->hasParameterOption(array('--version', '-V'))) { $output->writeln($this->getLongVersion()); return 0; } $name = $this->getCommandName($input); if (true === $input->hasParameterOption(array('--help', '-h'))) { if (!$name) { $name = 'help'; $input = new ArrayInput(array('command' => 'help')); } else { $this->wantHelps = true; } } if (!$name) { $name = 'list'; $input = new ArrayInput(array('command' => 'list')); } // the command name MUST be the first element of the input $command = $this->find($name); $this->runningCommand = $command; $exitCode = $this->doRunCommand($command, $input, $output); $this->runningCommand = null; return $exitCode; } /** * Set a helper set to be used with the command. * * @param HelperSet $helperSet The helper set * * @api */ public function setHelperSet(HelperSet $helperSet) { $this->helperSet = $helperSet; } /** * Get the helper set associated with the command. * * @return HelperSet The HelperSet instance associated with this command * * @api */ public function getHelperSet() { return $this->helperSet; } /** * Set an input definition set to be used with this application * * @param InputDefinition $definition The input definition * * @api */ public function setDefinition(InputDefinition $definition) { $this->definition = $definition; } /** * Gets the InputDefinition related to this Application. * * @return InputDefinition The InputDefinition instance */ public function getDefinition() { return $this->definition; } /** * Gets the help message. * * @return string A help message. */ public function getHelp() { $messages = array( $this->getLongVersion(), '', '<comment>Usage:</comment>', ' [options] command [arguments]', '', '<comment>Options:</comment>', ); foreach ($this->getDefinition()->getOptions() as $option) { $messages[] = sprintf(' %-29s %s %s', '<info>--'.$option->getName().'</info>', $option->getShortcut() ? '<info>-'.$option->getShortcut().'</info>' : ' ', $option->getDescription() ); } return implode(PHP_EOL, $messages); } /** * Sets whether to catch exceptions or not during commands execution. * * @param Boolean $boolean Whether to catch exceptions or not during commands execution * * @api */ public function setCatchExceptions($boolean) { $this->catchExceptions = (Boolean) $boolean; } /** * Sets whether to automatically exit after a command execution or not. * * @param Boolean $boolean Whether to automatically exit after a command execution or not * * @api */ public function setAutoExit($boolean) { $this->autoExit = (Boolean) $boolean; } /** * Gets the name of the application. * * @return string The application name * * @api */ public function getName() { return $this->name; } /** * Sets the application name. * * @param string $name The application name * * @api */ public function setName($name) { $this->name = $name; } /** * Gets the application version. * * @return string The application version * * @api */ public function getVersion() { return $this->version; } /** * Sets the application version. * * @param string $version The application version * * @api */ public function setVersion($version) { $this->version = $version; } /** * Returns the long version of the application. * * @return string The long application version * * @api */ public function getLongVersion() { if ('UNKNOWN' !== $this->getName() && 'UNKNOWN' !== $this->getVersion()) { return sprintf('<info>%s</info> version <comment>%s</comment>', $this->getName(), $this->getVersion()); } return '<info>Console Tool</info>'; } /** * Registers a new command. * * @param string $name The command name * * @return Command The newly created command * * @api */ public function register($name) { return $this->add(new Command($name)); } /** * Adds an array of command objects. * * @param Command[] $commands An array of commands * * @api */ public function addCommands(array $commands) { foreach ($commands as $command) { $this->add($command); } } /** * Adds a command object. * * If a command with the same name already exists, it will be overridden. * * @param Command $command A Command object * * @return Command The registered command * * @api */ public function add(Command $command) { $command->setApplication($this); if (!$command->isEnabled()) { $command->setApplication(null); return; } if (null === $command->getDefinition()) { throw new \LogicException(sprintf('Command class "%s" is not correctly initialized. You probably forgot to call the parent constructor.', get_class($command))); } $this->commands[$command->getName()] = $command; foreach ($command->getAliases() as $alias) { $this->commands[$alias] = $command; } return $command; } /** * Returns a registered command by name or alias. * * @param string $name The command name or alias * * @return Command A Command object * * @throws \InvalidArgumentException When command name given does not exist * * @api */ public function get($name) { if (!isset($this->commands[$name])) { throw new \InvalidArgumentException(sprintf('The command "%s" does not exist.', $name)); } $command = $this->commands[$name]; if ($this->wantHelps) { $this->wantHelps = false; $helpCommand = $this->get('help'); $helpCommand->setCommand($command); return $helpCommand; } return $command; } /** * Returns true if the command exists, false otherwise. * * @param string $name The command name or alias * * @return Boolean true if the command exists, false otherwise * * @api */ public function has($name) { return isset($this->commands[$name]); } /** * Returns an array of all unique namespaces used by currently registered commands. * * It does not returns the global namespace which always exists. * * @return array An array of namespaces */ public function getNamespaces() { $namespaces = array(); foreach ($this->commands as $command) { $namespaces[] = $this->extractNamespace($command->getName()); foreach ($command->getAliases() as $alias) { $namespaces[] = $this->extractNamespace($alias); } } return array_values(array_unique(array_filter($namespaces))); } /** * Finds a registered namespace by a name or an abbreviation. * * @param string $namespace A namespace or abbreviation to search for * * @return string A registered namespace * * @throws \InvalidArgumentException When namespace is incorrect or ambiguous */ public function findNamespace($namespace) { $allNamespaces = $this->getNamespaces(); $expr = preg_replace_callback('{([^:]+|)}', function ($matches) { return preg_quote($matches[1]).'[^:]*'; }, $namespace); $namespaces = preg_grep('{^'.$expr.'}', $allNamespaces); if (empty($namespaces)) { $message = sprintf('There are no commands defined in the "%s" namespace.', $namespace); if ($alternatives = $this->findAlternatives($namespace, $allNamespaces, array())) { if (1 == count($alternatives)) { $message .= "\n\nDid you mean this?\n "; } else { $message .= "\n\nDid you mean one of these?\n "; } $message .= implode("\n ", $alternatives); } throw new \InvalidArgumentException($message); } $exact = in_array($namespace, $namespaces, true); if (count($namespaces) > 1 && !$exact) { throw new \InvalidArgumentException(sprintf('The namespace "%s" is ambiguous (%s).', $namespace, $this->getAbbreviationSuggestions(array_values($namespaces)))); } return $exact ? $namespace : reset($namespaces); } /** * Finds a command by name or alias. * * Contrary to get, this command tries to find the best * match if you give it an abbreviation of a name or alias. * * @param string $name A command name or a command alias * * @return Command A Command instance * * @throws \InvalidArgumentException When command name is incorrect or ambiguous * * @api */ public function find($name) { $allCommands = array_keys($this->commands); $expr = preg_replace_callback('{([^:]+|)}', function ($matches) { return preg_quote($matches[1]).'[^:]*'; }, $name); $commands = preg_grep('{^'.$expr.'}', $allCommands); if (empty($commands) || count(preg_grep('{^'.$expr.'$}', $commands)) < 1) { if (false !== $pos = strrpos($name, ':')) { // check if a namespace exists and contains commands $this->findNamespace(substr($name, 0, $pos)); } $message = sprintf('Command "%s" is not defined.', $name); if ($alternatives = $this->findAlternatives($name, $allCommands, array())) { if (1 == count($alternatives)) { $message .= "\n\nDid you mean this?\n "; } else { $message .= "\n\nDid you mean one of these?\n "; } $message .= implode("\n ", $alternatives); } throw new \InvalidArgumentException($message); } // filter out aliases for commands which are already on the list if (count($commands) > 1) { $commandList = $this->commands; $commands = array_filter($commands, function ($nameOrAlias) use ($commandList, $commands) { $commandName = $commandList[$nameOrAlias]->getName(); return $commandName === $nameOrAlias || !in_array($commandName, $commands); }); } $exact = in_array($name, $commands, true); if (count($commands) > 1 && !$exact) { $suggestions = $this->getAbbreviationSuggestions(array_values($commands)); throw new \InvalidArgumentException(sprintf('Command "%s" is ambiguous (%s).', $name, $suggestions)); } return $this->get($exact ? $name : reset($commands)); } /** * Gets the commands (registered in the given namespace if provided). * * The array keys are the full names and the values the command instances. * * @param string $namespace A namespace name * * @return Command[] An array of Command instances * * @api */ public function all($namespace = null) { if (null === $namespace) { return $this->commands; } $commands = array(); foreach ($this->commands as $name => $command) { if ($namespace === $this->extractNamespace($name, substr_count($namespace, ':') + 1)) { $commands[$name] = $command; } } return $commands; } /** * Returns an array of possible abbreviations given a set of names. * * @param array $names An array of names * * @return array An array of abbreviations */ public static function getAbbreviations($names) { $abbrevs = array(); foreach ($names as $name) { for ($len = strlen($name); $len > 0; --$len) { $abbrev = substr($name, 0, $len); $abbrevs[$abbrev][] = $name; } } return $abbrevs; } /** * Returns a text representation of the Application. * * @param string $namespace An optional namespace name * @param boolean $raw Whether to return raw command list * * @return string A string representing the Application * * @deprecated Deprecated since version 2.3, to be removed in 3.0. */ public function asText($namespace = null, $raw = false) { $descriptor = new TextDescriptor(); $output = new BufferedOutput(BufferedOutput::VERBOSITY_NORMAL, !$raw); $descriptor->describe($output, $this, array('namespace' => $namespace, 'raw_output' => true)); return $output->fetch(); } /** * Returns an XML representation of the Application. * * @param string $namespace An optional namespace name * @param Boolean $asDom Whether to return a DOM or an XML string * * @return string|\DOMDocument An XML string representing the Application * * @deprecated Deprecated since version 2.3, to be removed in 3.0. */ public function asXml($namespace = null, $asDom = false) { $descriptor = new XmlDescriptor(); if ($asDom) { return $descriptor->getApplicationDocument($this, $namespace); } $output = new BufferedOutput(); $descriptor->describe($output, $this, array('namespace' => $namespace)); return $output->fetch(); } /** * Renders a caught exception. * * @param \Exception $e An exception instance * @param OutputInterface $output An OutputInterface instance */ public function renderException($e, $output) { $strlen = function ($string) { if (!function_exists('mb_strlen')) { return strlen($string); } if (false === $encoding = mb_detect_encoding($string)) { return strlen($string); } return mb_strlen($string, $encoding); }; do { $title = sprintf(' [%s] ', get_class($e)); $len = $strlen($title); // HHVM only accepts 32 bits integer in str_split, even when PHP_INT_MAX is a 64 bit integer: https://github.com/facebook/hhvm/issues/1327 $width = $this->getTerminalWidth() ? $this->getTerminalWidth() - 1 : (defined('HHVM_VERSION') ? 1 << 31 : PHP_INT_MAX); $formatter = $output->getFormatter(); $lines = array(); foreach (preg_split('/\r?\n/', $e->getMessage()) as $line) { foreach (str_split($line, $width - 4) as $line) { // pre-format lines to get the right string length $lineLength = $strlen(preg_replace('/\[[^m]*m/', '', $formatter->format($line))) + 4; $lines[] = array($line, $lineLength); $len = max($lineLength, $len); } } $messages = array('', ''); $messages[] = $emptyLine = $formatter->format(sprintf('<error>%s</error>', str_repeat(' ', $len))); $messages[] = $formatter->format(sprintf('<error>%s%s</error>', $title, str_repeat(' ', max(0, $len - $strlen($title))))); foreach ($lines as $line) { $messages[] = $formatter->format(sprintf('<error> %s %s</error>', $line[0], str_repeat(' ', $len - $line[1]))); } $messages[] = $emptyLine; $messages[] = ''; $messages[] = ''; $output->writeln($messages, OutputInterface::OUTPUT_RAW); if (OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) { $output->writeln('<comment>Exception trace:</comment>'); // exception related properties $trace = $e->getTrace(); array_unshift($trace, array( 'function' => '', 'file' => $e->getFile() != null ? $e->getFile() : 'n/a', 'line' => $e->getLine() != null ? $e->getLine() : 'n/a', 'args' => array(), )); for ($i = 0, $count = count($trace); $i < $count; $i++) { $class = isset($trace[$i]['class']) ? $trace[$i]['class'] : ''; $type = isset($trace[$i]['type']) ? $trace[$i]['type'] : ''; $function = $trace[$i]['function']; $file = isset($trace[$i]['file']) ? $trace[$i]['file'] : 'n/a'; $line = isset($trace[$i]['line']) ? $trace[$i]['line'] : 'n/a'; $output->writeln(sprintf(' %s%s%s() at <info>%s:%s</info>', $class, $type, $function, $file, $line)); } $output->writeln(""); $output->writeln(""); } } while ($e = $e->getPrevious()); if (null !== $this->runningCommand) { $output->writeln(sprintf('<info>%s</info>', sprintf($this->runningCommand->getSynopsis(), $this->getName()))); $output->writeln(""); $output->writeln(""); } } /** * Tries to figure out the terminal width in which this application runs * * @return int|null */ protected function getTerminalWidth() { $dimensions = $this->getTerminalDimensions(); return $dimensions[0]; } /** * Tries to figure out the terminal height in which this application runs * * @return int|null */ protected function getTerminalHeight() { $dimensions = $this->getTerminalDimensions(); return $dimensions[1]; } /** * Tries to figure out the terminal dimensions based on the current environment * * @return array Array containing width and height */ public function getTerminalDimensions() { if ($this->terminalDimensions) { return $this->terminalDimensions; } if (defined('PHP_WINDOWS_VERSION_BUILD')) { // extract [w, H] from "wxh (WxH)" if (preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', trim(getenv('ANSICON')), $matches)) { return array((int) $matches[1], (int) $matches[2]); } // extract [w, h] from "wxh" if (preg_match('/^(\d+)x(\d+)$/', $this->getConsoleMode(), $matches)) { return array((int) $matches[1], (int) $matches[2]); } } if ($sttyString = $this->getSttyColumns()) { // extract [w, h] from "rows h; columns w;" if (preg_match('/rows.(\d+);.columns.(\d+);/i', $sttyString, $matches)) { return array((int) $matches[2], (int) $matches[1]); } // extract [w, h] from "; h rows; w columns" if (preg_match('/;.(\d+).rows;.(\d+).columns/i', $sttyString, $matches)) { return array((int) $matches[2], (int) $matches[1]); } } return array(null, null); } /** * Sets terminal dimensions. * * Can be useful to force terminal dimensions for functional tests. * * @param integer $width The width * @param integer $height The height * * @return Application The current application */ public function setTerminalDimensions($width, $height) { $this->terminalDimensions = array($width, $height); return $this; } /** * Configures the input and output instances based on the user arguments and options. * * @param InputInterface $input An InputInterface instance * @param OutputInterface $output An OutputInterface instance */ protected function configureIO(InputInterface $input, OutputInterface $output) { if (true === $input->hasParameterOption(array('--ansi'))) { $output->setDecorated(true); } elseif (true === $input->hasParameterOption(array('--no-ansi'))) { $output->setDecorated(false); } if (true === $input->hasParameterOption(array('--no-interaction', '-n'))) { $input->setInteractive(false); } elseif (function_exists('posix_isatty') && $this->getHelperSet()->has('dialog')) { $inputStream = $this->getHelperSet()->get('dialog')->getInputStream(); if (!@posix_isatty($inputStream)) { $input->setInteractive(false); } } if (true === $input->hasParameterOption(array('--quiet', '-q'))) { $output->setVerbosity(OutputInterface::VERBOSITY_QUIET); } else { if ($input->hasParameterOption('-vvv') || $input->hasParameterOption('--verbose=3') || $input->getParameterOption('--verbose') === 3) { $output->setVerbosity(OutputInterface::VERBOSITY_DEBUG); } elseif ($input->hasParameterOption('-vv') || $input->hasParameterOption('--verbose=2') || $input->getParameterOption('--verbose') === 2) { $output->setVerbosity(OutputInterface::VERBOSITY_VERY_VERBOSE); } elseif ($input->hasParameterOption('-v') || $input->hasParameterOption('--verbose=1') || $input->hasParameterOption('--verbose') || $input->getParameterOption('--verbose')) { $output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE); } } } /** * Runs the current command. * * If an event dispatcher has been attached to the application, * events are also dispatched during the life-cycle of the command. * * @param Command $command A Command instance * @param InputInterface $input An Input instance * @param OutputInterface $output An Output instance * * @return integer 0 if everything went fine, or an error code */ protected function doRunCommand(Command $command, InputInterface $input, OutputInterface $output) { foreach ($command->getHelperSet() as $helper) { if ($helper instanceof InputAwareInterface) { $helper->setInput($input); } } if (null === $this->dispatcher) { return $command->run($input, $output); } $event = new ConsoleCommandEvent($command, $input, $output); $this->dispatcher->dispatch(ConsoleEvents::COMMAND, $event); try { $exitCode = $command->run($input, $output); } catch (\Exception $e) { $event = new ConsoleTerminateEvent($command, $input, $output, $e->getCode()); $this->dispatcher->dispatch(ConsoleEvents::TERMINATE, $event); $event = new ConsoleExceptionEvent($command, $input, $output, $e, $event->getExitCode()); $this->dispatcher->dispatch(ConsoleEvents::EXCEPTION, $event); throw $event->getException(); } $event = new ConsoleTerminateEvent($command, $input, $output, $exitCode); $this->dispatcher->dispatch(ConsoleEvents::TERMINATE, $event); return $event->getExitCode(); } /** * Gets the name of the command based on input. * * @param InputInterface $input The input interface * * @return string The command name */ protected function getCommandName(InputInterface $input) { return $input->getFirstArgument(); } /** * Gets the default input definition. * * @return InputDefinition An InputDefinition instance */ protected function getDefaultInputDefinition() { return new InputDefinition(array( new InputArgument('command', InputArgument::REQUIRED, 'The command to execute'), new InputOption('--help', '-h', InputOption::VALUE_NONE, 'Display this help message.'), new InputOption('--quiet', '-q', InputOption::VALUE_NONE, 'Do not output any message.'), new InputOption('--verbose', '-v|vv|vvv', InputOption::VALUE_NONE, 'Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug'), new InputOption('--version', '-V', InputOption::VALUE_NONE, 'Display this application version.'), new InputOption('--ansi', '', InputOption::VALUE_NONE, 'Force ANSI output.'), new InputOption('--no-ansi', '', InputOption::VALUE_NONE, 'Disable ANSI output.'), new InputOption('--no-interaction', '-n', InputOption::VALUE_NONE, 'Do not ask any interactive question.'), )); } /** * Gets the default commands that should always be available. * * @return Command[] An array of default Command instances */ protected function getDefaultCommands() { return array(new HelpCommand(), new ListCommand()); } /** * Gets the default helper set with the helpers that should always be available. * * @return HelperSet A HelperSet instance */ protected function getDefaultHelperSet() { return new HelperSet(array( new FormatterHelper(), new DialogHelper(), new ProgressHelper(), new TableHelper(), )); } /** * Runs and parses stty -a if it's available, suppressing any error output * * @return string */ private function getSttyColumns() { if (!function_exists('proc_open')) { return; } $descriptorspec = array(1 => array('pipe', 'w'), 2 => array('pipe', 'w')); $process = proc_open('stty -a | grep columns', $descriptorspec, $pipes, null, null, array('suppress_errors' => true)); if (is_resource($process)) { $info = stream_get_contents($pipes[1]); fclose($pipes[1]); fclose($pipes[2]); proc_close($process); return $info; } } /** * Runs and parses mode CON if it's available, suppressing any error output * * @return string <width>x<height> or null if it could not be parsed */ private function getConsoleMode() { if (!function_exists('proc_open')) { return; } $descriptorspec = array(1 => array('pipe', 'w'), 2 => array('pipe', 'w')); $process = proc_open('mode CON', $descriptorspec, $pipes, null, null, array('suppress_errors' => true)); if (is_resource($process)) { $info = stream_get_contents($pipes[1]); fclose($pipes[1]); fclose($pipes[2]); proc_close($process); if (preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) { return $matches[2].'x'.$matches[1]; } } } /** * Returns abbreviated suggestions in string format. * * @param array $abbrevs Abbreviated suggestions to convert * * @return string A formatted string of abbreviated suggestions */ private function getAbbreviationSuggestions($abbrevs) { return sprintf('%s, %s%s', $abbrevs[0], $abbrevs[1], count($abbrevs) > 2 ? sprintf(' and %d more', count($abbrevs) - 2) : ''); } /** * Returns the namespace part of the command name. * * This method is not part of public API and should not be used directly. * * @param string $name The full name of the command * @param string $limit The maximum number of parts of the namespace * * @return string The namespace of the command */ public function extractNamespace($name, $limit = null) { $parts = explode(':', $name); array_pop($parts); return implode(':', null === $limit ? $parts : array_slice($parts, 0, $limit)); } /** * Finds alternative of $name among $collection, * if nothing is found in $collection, try in $abbrevs * * @param string $name The string * @param array|\Traversable $collection The collection * * @return array A sorted array of similar string */ private function findAlternatives($name, $collection) { $threshold = 1e3; $alternatives = array(); $collectionParts = array(); foreach ($collection as $item) { $collectionParts[$item] = explode(':', $item); } foreach (explode(':', $name) as $i => $subname) { foreach ($collectionParts as $collectionName => $parts) { $exists = isset($alternatives[$collectionName]); if (!isset($parts[$i]) && $exists) { $alternatives[$collectionName] += $threshold; continue; } elseif (!isset($parts[$i])) { continue; } $lev = levenshtein($subname, $parts[$i]); if ($lev <= strlen($subname) / 3 || false !== strpos($parts[$i], $subname)) { $alternatives[$collectionName] = $exists ? $alternatives[$collectionName] + $lev : $lev; } elseif ($exists) { $alternatives[$collectionName] += $threshold; } } } foreach ($collection as $item) { $lev = levenshtein($name, $item); if ($lev <= strlen($name) / 3 || false !== strpos($item, $name)) { $alternatives[$item] = isset($alternatives[$item]) ? $alternatives[$item] - $lev : $lev; } } $alternatives = array_filter($alternatives, function ($lev) use ($threshold) { return $lev < 2*$threshold; }); asort($alternatives); return array_keys($alternatives); } }