Helper.php 3.7KB

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  1. <?php
  2. /*
  3. * This file is part of the Symfony package.
  4. *
  5. * (c) Fabien Potencier <fabien@symfony.com>
  6. *
  7. * For the full copyright and license information, please view the LICENSE
  8. * file that was distributed with this source code.
  9. */
  10. namespace Symfony\Component\Console\Helper;
  11. use Symfony\Component\Console\Formatter\OutputFormatterInterface;
  12. /**
  13. * Helper is the base class for all helper classes.
  14. *
  15. * @author Fabien Potencier <fabien@symfony.com>
  16. */
  17. abstract class Helper implements HelperInterface
  18. {
  19. protected $helperSet = null;
  20. /**
  21. * {@inheritdoc}
  22. */
  23. public function setHelperSet(HelperSet $helperSet = null)
  24. {
  25. $this->helperSet = $helperSet;
  26. }
  27. /**
  28. * {@inheritdoc}
  29. */
  30. public function getHelperSet()
  31. {
  32. return $this->helperSet;
  33. }
  34. /**
  35. * Returns the length of a string, using mb_strwidth if it is available.
  36. *
  37. * @param string $string The string to check its length
  38. *
  39. * @return int The length of the string
  40. */
  41. public static function strlen($string)
  42. {
  43. if (false === $encoding = mb_detect_encoding($string, null, true)) {
  44. return strlen($string);
  45. }
  46. return mb_strwidth($string, $encoding);
  47. }
  48. /**
  49. * Returns the subset of a string, using mb_substr if it is available.
  50. *
  51. * @param string $string String to subset
  52. * @param int $from Start offset
  53. * @param int|null $length Length to read
  54. *
  55. * @return string The string subset
  56. */
  57. public static function substr($string, $from, $length = null)
  58. {
  59. if (false === $encoding = mb_detect_encoding($string, null, true)) {
  60. return substr($string, $from, $length);
  61. }
  62. return mb_substr($string, $from, $length, $encoding);
  63. }
  64. public static function formatTime($secs)
  65. {
  66. static $timeFormats = array(
  67. array(0, '< 1 sec'),
  68. array(1, '1 sec'),
  69. array(2, 'secs', 1),
  70. array(60, '1 min'),
  71. array(120, 'mins', 60),
  72. array(3600, '1 hr'),
  73. array(7200, 'hrs', 3600),
  74. array(86400, '1 day'),
  75. array(172800, 'days', 86400),
  76. );
  77. foreach ($timeFormats as $index => $format) {
  78. if ($secs >= $format[0]) {
  79. if ((isset($timeFormats[$index + 1]) && $secs < $timeFormats[$index + 1][0])
  80. || $index == count($timeFormats) - 1
  81. ) {
  82. if (2 == count($format)) {
  83. return $format[1];
  84. }
  85. return floor($secs / $format[2]).' '.$format[1];
  86. }
  87. }
  88. }
  89. }
  90. public static function formatMemory($memory)
  91. {
  92. if ($memory >= 1024 * 1024 * 1024) {
  93. return sprintf('%.1f GiB', $memory / 1024 / 1024 / 1024);
  94. }
  95. if ($memory >= 1024 * 1024) {
  96. return sprintf('%.1f MiB', $memory / 1024 / 1024);
  97. }
  98. if ($memory >= 1024) {
  99. return sprintf('%d KiB', $memory / 1024);
  100. }
  101. return sprintf('%d B', $memory);
  102. }
  103. public static function strlenWithoutDecoration(OutputFormatterInterface $formatter, $string)
  104. {
  105. return self::strlen(self::removeDecoration($formatter, $string));
  106. }
  107. public static function removeDecoration(OutputFormatterInterface $formatter, $string)
  108. {
  109. $isDecorated = $formatter->isDecorated();
  110. $formatter->setDecorated(false);
  111. // remove <...> formatting
  112. $string = $formatter->format($string);
  113. // remove already formatted characters
  114. $string = preg_replace("/\033\[[^m]*m/", '', $string);
  115. $formatter->setDecorated($isDecorated);
  116. return $string;
  117. }
  118. }