Chris@0: <?php
Chris@0: /*
Chris@0:  * This file is part of the Environment package.
Chris@0:  *
Chris@0:  * (c) Sebastian Bergmann <sebastian@phpunit.de>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace SebastianBergmann\Environment;
Chris@0: 
Chris@0: /**
Chris@0:  */
Chris@0: class Console
Chris@0: {
Chris@0:     const STDIN  = 0;
Chris@0:     const STDOUT = 1;
Chris@0:     const STDERR = 2;
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns true if STDOUT supports colorization.
Chris@0:      *
Chris@0:      * This code has been copied and adapted from
Chris@0:      * Symfony\Component\Console\Output\OutputStream.
Chris@0:      *
Chris@0:      * @return bool
Chris@0:      */
Chris@0:     public function hasColorSupport()
Chris@0:     {
Chris@0:         if (DIRECTORY_SEPARATOR == '\\') {
Chris@0:             return false !== getenv('ANSICON') || 'ON' === getenv('ConEmuANSI') || 'xterm' === getenv('TERM');
Chris@0:         }
Chris@0: 
Chris@0:         if (!defined('STDOUT')) {
Chris@0:             return false;
Chris@0:         }
Chris@0: 
Chris@0:         return $this->isInteractive(STDOUT);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns the number of columns of the terminal.
Chris@0:      *
Chris@0:      * @return int
Chris@0:      */
Chris@0:     public function getNumberOfColumns()
Chris@0:     {
Chris@0:         if (DIRECTORY_SEPARATOR == '\\') {
Chris@0:             $columns = 80;
Chris@0: 
Chris@0:             if (preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', trim(getenv('ANSICON')), $matches)) {
Chris@0:                 $columns = $matches[1];
Chris@0:             } elseif (function_exists('proc_open')) {
Chris@0:                 $process = proc_open(
Chris@0:                     'mode CON',
Chris@0:                     array(
Chris@0:                         1 => array('pipe', 'w'),
Chris@0:                         2 => array('pipe', 'w')
Chris@0:                     ),
Chris@0:                     $pipes,
Chris@0:                     null,
Chris@0:                     null,
Chris@0:                     array('suppress_errors' => true)
Chris@0:                 );
Chris@0: 
Chris@0:                 if (is_resource($process)) {
Chris@0:                     $info = stream_get_contents($pipes[1]);
Chris@0: 
Chris@0:                     fclose($pipes[1]);
Chris@0:                     fclose($pipes[2]);
Chris@0:                     proc_close($process);
Chris@0: 
Chris@0:                     if (preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) {
Chris@0:                         $columns = $matches[2];
Chris@0:                     }
Chris@0:                 }
Chris@0:             }
Chris@0: 
Chris@0:             return $columns - 1;
Chris@0:         }
Chris@0: 
Chris@0:         if (!$this->isInteractive(self::STDIN)) {
Chris@0:             return 80;
Chris@0:         }
Chris@0: 
Chris@0:         if (function_exists('shell_exec') && preg_match('#\d+ (\d+)#', shell_exec('stty size'), $match) === 1) {
Chris@0:             if ((int) $match[1] > 0) {
Chris@0:                 return (int) $match[1];
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         if (function_exists('shell_exec') && preg_match('#columns = (\d+);#', shell_exec('stty'), $match) === 1) {
Chris@0:             if ((int) $match[1] > 0) {
Chris@0:                 return (int) $match[1];
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return 80;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns if the file descriptor is an interactive terminal or not.
Chris@0:      *
Chris@0:      * @param int|resource $fileDescriptor
Chris@0:      *
Chris@0:      * @return bool
Chris@0:      */
Chris@0:     public function isInteractive($fileDescriptor = self::STDOUT)
Chris@0:     {
Chris@0:         return function_exists('posix_isatty') && @posix_isatty($fileDescriptor);
Chris@0:     }
Chris@0: }