diff options
Diffstat (limited to 'Aufgabe06/vendor/symfony/console/Symfony/Component/Console/Helper/QuestionHelper.php')
| -rw-r--r-- | Aufgabe06/vendor/symfony/console/Symfony/Component/Console/Helper/QuestionHelper.php | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/Aufgabe06/vendor/symfony/console/Symfony/Component/Console/Helper/QuestionHelper.php b/Aufgabe06/vendor/symfony/console/Symfony/Component/Console/Helper/QuestionHelper.php deleted file mode 100644 index caa0914..0000000 --- a/Aufgabe06/vendor/symfony/console/Symfony/Component/Console/Helper/QuestionHelper.php +++ /dev/null @@ -1,418 +0,0 @@ -<?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\Helper; - -use Symfony\Component\Console\Input\InputInterface; -use Symfony\Component\Console\Output\OutputInterface; -use Symfony\Component\Console\Formatter\OutputFormatterStyle; -use Symfony\Component\Console\Question\Question; -use Symfony\Component\Console\Question\ChoiceQuestion; - -/** - * The QuestionHelper class provides helpers to interact with the user. - * - * @author Fabien Potencier <fabien@symfony.com> - */ -class QuestionHelper extends Helper -{ - private $inputStream; - private static $shell; - private static $stty; - - /** - * Asks a question to the user. - * - * @param InputInterface $input An InputInterface instance - * @param OutputInterface $output An OutputInterface instance - * @param Question $question The question to ask - * - * @return string The user answer - * - * @throws \RuntimeException If there is no data to read in the input stream - */ - public function ask(InputInterface $input, OutputInterface $output, Question $question) - { - if (!$input->isInteractive()) { - return $question->getDefault(); - } - - if (!$question->getValidator()) { - return $this->doAsk($output, $question); - } - - $that = $this; - - $interviewer = function () use ($output, $question, $that) { - return $that->doAsk($output, $question); - }; - - return $this->validateAttempts($interviewer, $output, $question); - } - - /** - * Sets the input stream to read from when interacting with the user. - * - * This is mainly useful for testing purpose. - * - * @param resource $stream The input stream - * - * @throws \InvalidArgumentException In case the stream is not a resource - */ - public function setInputStream($stream) - { - if (!is_resource($stream)) { - throw new \InvalidArgumentException('Input stream must be a valid resource.'); - } - - $this->inputStream = $stream; - } - - /** - * Returns the helper's input stream - * - * @return resource - */ - public function getInputStream() - { - return $this->inputStream; - } - - /** - * {@inheritdoc} - */ - public function getName() - { - return 'question'; - } - - /** - * Asks the question to the user. - * - * This method is public for PHP 5.3 compatibility, it should be private. - * - * @param OutputInterface $output - * @param Question $question - * - * @return bool|mixed|null|string - * - * @throws \Exception - * @throws \RuntimeException - */ - public function doAsk(OutputInterface $output, Question $question) - { - $inputStream = $this->inputStream ?: STDIN; - - $message = $question->getQuestion(); - if ($question instanceof ChoiceQuestion) { - $width = max(array_map('strlen', array_keys($question->getChoices()))); - - $messages = (array) $question->getQuestion(); - foreach ($question->getChoices() as $key => $value) { - $messages[] = sprintf(" [<info>%-${width}s</info>] %s", $key, $value); - } - - $output->writeln($messages); - - $message = $question->getPrompt(); - } - - $output->write($message); - - $autocomplete = $question->getAutocompleterValues(); - if (null === $autocomplete || !$this->hasSttyAvailable()) { - $ret = false; - if ($question->isHidden()) { - try { - $ret = trim($this->getHiddenResponse($output, $inputStream)); - } catch (\RuntimeException $e) { - if (!$question->isHiddenFallback()) { - throw $e; - } - } - } - - if (false === $ret) { - $ret = fgets($inputStream, 4096); - if (false === $ret) { - throw new \RuntimeException('Aborted'); - } - $ret = trim($ret); - } - } else { - $ret = trim($this->autocomplete($output, $question, $inputStream)); - } - - $ret = strlen($ret) > 0 ? $ret : $question->getDefault(); - - if ($normalizer = $question->getNormalizer()) { - return $normalizer($ret); - } - - return $ret; - } - - /** - * Autocompletes a question. - * - * @param OutputInterface $output - * @param Question $question - * - * @return string - */ - private function autocomplete(OutputInterface $output, Question $question, $inputStream) - { - $autocomplete = $question->getAutocompleterValues(); - $ret = ''; - - $i = 0; - $ofs = -1; - $matches = $autocomplete; - $numMatches = count($matches); - - $sttyMode = shell_exec('stty -g'); - - // Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead) - shell_exec('stty -icanon -echo'); - - // Add highlighted text style - $output->getFormatter()->setStyle('hl', new OutputFormatterStyle('black', 'white')); - - // Read a keypress - while (!feof($inputStream)) { - $c = fread($inputStream, 1); - - // Backspace Character - if ("\177" === $c) { - if (0 === $numMatches && 0 !== $i) { - $i--; - // Move cursor backwards - $output->write("\033[1D"); - } - - if ($i === 0) { - $ofs = -1; - $matches = $autocomplete; - $numMatches = count($matches); - } else { - $numMatches = 0; - } - - // Pop the last character off the end of our string - $ret = substr($ret, 0, $i); - } elseif ("\033" === $c) { - // Did we read an escape sequence? - $c .= fread($inputStream, 2); - - // A = Up Arrow. B = Down Arrow - if (isset($c[2]) && ('A' === $c[2] || 'B' === $c[2])) { - if ('A' === $c[2] && -1 === $ofs) { - $ofs = 0; - } - - if (0 === $numMatches) { - continue; - } - - $ofs += ('A' === $c[2]) ? -1 : 1; - $ofs = ($numMatches + $ofs) % $numMatches; - } - } elseif (ord($c) < 32) { - if ("\t" === $c || "\n" === $c) { - if ($numMatches > 0 && -1 !== $ofs) { - $ret = $matches[$ofs]; - // Echo out remaining chars for current match - $output->write(substr($ret, $i)); - $i = strlen($ret); - } - - if ("\n" === $c) { - $output->write($c); - break; - } - - $numMatches = 0; - } - - continue; - } else { - $output->write($c); - $ret .= $c; - $i++; - - $numMatches = 0; - $ofs = 0; - - foreach ($autocomplete as $value) { - // If typed characters match the beginning chunk of value (e.g. [AcmeDe]moBundle) - if (0 === strpos($value, $ret) && $i !== strlen($value)) { - $matches[$numMatches++] = $value; - } - } - } - - // Erase characters from cursor to end of line - $output->write("\033[K"); - - if ($numMatches > 0 && -1 !== $ofs) { - // Save cursor position - $output->write("\0337"); - // Write highlighted text - $output->write('<hl>'.substr($matches[$ofs], $i).'</hl>'); - // Restore cursor position - $output->write("\0338"); - } - } - - // Reset stty so it behaves normally again - shell_exec(sprintf('stty %s', $sttyMode)); - - return $ret; - } - - /** - * Gets a hidden response from user. - * - * @param OutputInterface $output An Output instance - * - * @return string The answer - * - * @throws \RuntimeException In case the fallback is deactivated and the response cannot be hidden - */ - private function getHiddenResponse(OutputInterface $output, $inputStream) - { - if ('\\' === DIRECTORY_SEPARATOR) { - $exe = __DIR__.'/../Resources/bin/hiddeninput.exe'; - - // handle code running from a phar - if ('phar:' === substr(__FILE__, 0, 5)) { - $tmpExe = sys_get_temp_dir().'/hiddeninput.exe'; - copy($exe, $tmpExe); - $exe = $tmpExe; - } - - $value = rtrim(shell_exec($exe)); - $output->writeln(''); - - if (isset($tmpExe)) { - unlink($tmpExe); - } - - return $value; - } - - if ($this->hasSttyAvailable()) { - $sttyMode = shell_exec('stty -g'); - - shell_exec('stty -echo'); - $value = fgets($inputStream, 4096); - shell_exec(sprintf('stty %s', $sttyMode)); - - if (false === $value) { - throw new \RuntimeException('Aborted'); - } - - $value = trim($value); - $output->writeln(''); - - return $value; - } - - if (false !== $shell = $this->getShell()) { - $readCmd = $shell === 'csh' ? 'set mypassword = $<' : 'read -r mypassword'; - $command = sprintf("/usr/bin/env %s -c 'stty -echo; %s; stty echo; echo \$mypassword'", $shell, $readCmd); - $value = rtrim(shell_exec($command)); - $output->writeln(''); - - return $value; - } - - throw new \RuntimeException('Unable to hide the response.'); - } - - /** - * Validates an attempt. - * - * @param callable $interviewer A callable that will ask for a question and return the result - * @param OutputInterface $output An Output instance - * @param Question $question A Question instance - * - * @return string The validated response - * - * @throws \Exception In case the max number of attempts has been reached and no valid response has been given - */ - private function validateAttempts($interviewer, OutputInterface $output, Question $question) - { - $error = null; - $attempts = $question->getMaxAttempts(); - while (null === $attempts || $attempts--) { - if (null !== $error) { - if (null !== $this->getHelperSet() && $this->getHelperSet()->has('formatter')) { - $message = $this->getHelperSet()->get('formatter')->formatBlock($error->getMessage(), 'error'); - } else { - $message = '<error>'.$error->getMessage().'</error>'; - } - - $output->writeln($message); - } - - try { - return call_user_func($question->getValidator(), $interviewer()); - } catch (\Exception $error) { - } - } - - throw $error; - } - - /** - * Returns a valid unix shell. - * - * @return string|bool The valid shell name, false in case no valid shell is found - */ - private function getShell() - { - if (null !== self::$shell) { - return self::$shell; - } - - self::$shell = false; - - if (file_exists('/usr/bin/env')) { - // handle other OSs with bash/zsh/ksh/csh if available to hide the answer - $test = "/usr/bin/env %s -c 'echo OK' 2> /dev/null"; - foreach (array('bash', 'zsh', 'ksh', 'csh') as $sh) { - if ('OK' === rtrim(shell_exec(sprintf($test, $sh)))) { - self::$shell = $sh; - break; - } - } - } - - return self::$shell; - } - - /** - * Returns whether Stty is available or not. - * - * @return bool - */ - private function hasSttyAvailable() - { - if (null !== self::$stty) { - return self::$stty; - } - - exec('stty 2>&1', $output, $exitcode); - - return self::$stty = $exitcode === 0; - } -} |
