Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
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 Symfony\Component\Console\Helper;
Chris@0: 
Chris@0: use Symfony\Component\Console\Formatter\OutputFormatterInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Helper is the base class for all helper classes.
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  */
Chris@0: abstract class Helper implements HelperInterface
Chris@0: {
Chris@0:     protected $helperSet = null;
Chris@0: 
Chris@0:     /**
Chris@0:      * Sets the helper set associated with this helper.
Chris@0:      *
Chris@0:      * @param HelperSet $helperSet A HelperSet instance
Chris@0:      */
Chris@0:     public function setHelperSet(HelperSet $helperSet = null)
Chris@0:     {
Chris@0:         $this->helperSet = $helperSet;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Gets the helper set associated with this helper.
Chris@0:      *
Chris@0:      * @return HelperSet|null
Chris@0:      */
Chris@0:     public function getHelperSet()
Chris@0:     {
Chris@0:         return $this->helperSet;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns the length of a string, using mb_strwidth if it is available.
Chris@0:      *
Chris@0:      * @param string $string The string to check its length
Chris@0:      *
Chris@0:      * @return int The length of the string
Chris@0:      */
Chris@0:     public static function strlen($string)
Chris@0:     {
Chris@0:         if (false === $encoding = mb_detect_encoding($string, null, true)) {
Chris@0:             return strlen($string);
Chris@0:         }
Chris@0: 
Chris@0:         return mb_strwidth($string, $encoding);
Chris@0:     }
Chris@0: 
Chris@0:     public static function formatTime($secs)
Chris@0:     {
Chris@0:         static $timeFormats = array(
Chris@0:             array(0, '< 1 sec'),
Chris@0:             array(1, '1 sec'),
Chris@0:             array(2, 'secs', 1),
Chris@0:             array(60, '1 min'),
Chris@0:             array(120, 'mins', 60),
Chris@0:             array(3600, '1 hr'),
Chris@0:             array(7200, 'hrs', 3600),
Chris@0:             array(86400, '1 day'),
Chris@0:             array(172800, 'days', 86400),
Chris@0:         );
Chris@0: 
Chris@0:         foreach ($timeFormats as $index => $format) {
Chris@0:             if ($secs >= $format[0]) {
Chris@0:                 if ((isset($timeFormats[$index + 1]) && $secs < $timeFormats[$index + 1][0])
Chris@0:                     || $index == count($timeFormats) - 1
Chris@0:                 ) {
Chris@0:                     if (2 == count($format)) {
Chris@0:                         return $format[1];
Chris@0:                     }
Chris@0: 
Chris@0:                     return floor($secs / $format[2]).' '.$format[1];
Chris@0:                 }
Chris@0:             }
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     public static function formatMemory($memory)
Chris@0:     {
Chris@0:         if ($memory >= 1024 * 1024 * 1024) {
Chris@0:             return sprintf('%.1f GiB', $memory / 1024 / 1024 / 1024);
Chris@0:         }
Chris@0: 
Chris@0:         if ($memory >= 1024 * 1024) {
Chris@0:             return sprintf('%.1f MiB', $memory / 1024 / 1024);
Chris@0:         }
Chris@0: 
Chris@0:         if ($memory >= 1024) {
Chris@0:             return sprintf('%d KiB', $memory / 1024);
Chris@0:         }
Chris@0: 
Chris@0:         return sprintf('%d B', $memory);
Chris@0:     }
Chris@0: 
Chris@0:     public static function strlenWithoutDecoration(OutputFormatterInterface $formatter, $string)
Chris@0:     {
Chris@0:         return self::strlen(self::removeDecoration($formatter, $string));
Chris@0:     }
Chris@0: 
Chris@0:     public static function removeDecoration(OutputFormatterInterface $formatter, $string)
Chris@0:     {
Chris@0:         $isDecorated = $formatter->isDecorated();
Chris@0:         $formatter->setDecorated(false);
Chris@0:         // remove <...> formatting
Chris@0:         $string = $formatter->format($string);
Chris@0:         // remove already formatted characters
Chris@0:         $string = preg_replace("/\033\[[^m]*m/", '', $string);
Chris@0:         $formatter->setDecorated($isDecorated);
Chris@0: 
Chris@0:         return $string;
Chris@0:     }
Chris@0: }