TranslatorTrait.php 7.4 KB

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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\Contracts\Translation;
  11. use Symfony\Component\Translation\Exception\InvalidArgumentException;
  12. /**
  13. * A trait to help implement TranslatorInterface and LocaleAwareInterface.
  14. *
  15. * @author Fabien Potencier <fabien@symfony.com>
  16. */
  17. trait TranslatorTrait
  18. {
  19. private ?string $locale = null;
  20. public function setLocale(string $locale)
  21. {
  22. $this->locale = $locale;
  23. }
  24. public function getLocale(): string
  25. {
  26. return $this->locale ?: (class_exists(\Locale::class) ? \Locale::getDefault() : 'en');
  27. }
  28. public function trans(?string $id, array $parameters = [], string $domain = null, string $locale = null): string
  29. {
  30. if (null === $id || '' === $id) {
  31. return '';
  32. }
  33. if (!isset($parameters['%count%']) || !is_numeric($parameters['%count%'])) {
  34. return strtr($id, $parameters);
  35. }
  36. $number = (float) $parameters['%count%'];
  37. $locale = $locale ?: $this->getLocale();
  38. $parts = [];
  39. if (preg_match('/^\|++$/', $id)) {
  40. $parts = explode('|', $id);
  41. } elseif (preg_match_all('/(?:\|\||[^\|])++/', $id, $matches)) {
  42. $parts = $matches[0];
  43. }
  44. $intervalRegexp = <<<'EOF'
  45. /^(?P<interval>
  46. ({\s*
  47. (\-?\d+(\.\d+)?[\s*,\s*\-?\d+(\.\d+)?]*)
  48. \s*})
  49. |
  50. (?P<left_delimiter>[\[\]])
  51. \s*
  52. (?P<left>-Inf|\-?\d+(\.\d+)?)
  53. \s*,\s*
  54. (?P<right>\+?Inf|\-?\d+(\.\d+)?)
  55. \s*
  56. (?P<right_delimiter>[\[\]])
  57. )\s*(?P<message>.*?)$/xs
  58. EOF;
  59. $standardRules = [];
  60. foreach ($parts as $part) {
  61. $part = trim(str_replace('||', '|', $part));
  62. // try to match an explicit rule, then fallback to the standard ones
  63. if (preg_match($intervalRegexp, $part, $matches)) {
  64. if ($matches[2]) {
  65. foreach (explode(',', $matches[3]) as $n) {
  66. if ($number == $n) {
  67. return strtr($matches['message'], $parameters);
  68. }
  69. }
  70. } else {
  71. $leftNumber = '-Inf' === $matches['left'] ? -\INF : (float) $matches['left'];
  72. $rightNumber = is_numeric($matches['right']) ? (float) $matches['right'] : \INF;
  73. if (('[' === $matches['left_delimiter'] ? $number >= $leftNumber : $number > $leftNumber)
  74. && (']' === $matches['right_delimiter'] ? $number <= $rightNumber : $number < $rightNumber)
  75. ) {
  76. return strtr($matches['message'], $parameters);
  77. }
  78. }
  79. } elseif (preg_match('/^\w+\:\s*(.*?)$/', $part, $matches)) {
  80. $standardRules[] = $matches[1];
  81. } else {
  82. $standardRules[] = $part;
  83. }
  84. }
  85. $position = $this->getPluralizationRule($number, $locale);
  86. if (!isset($standardRules[$position])) {
  87. // when there's exactly one rule given, and that rule is a standard
  88. // rule, use this rule
  89. if (1 === \count($parts) && isset($standardRules[0])) {
  90. return strtr($standardRules[0], $parameters);
  91. }
  92. $message = sprintf('Unable to choose a translation for "%s" with locale "%s" for value "%d". Double check that this translation has the correct plural options (e.g. "There is one apple|There are %%count%% apples").', $id, $locale, $number);
  93. if (class_exists(InvalidArgumentException::class)) {
  94. throw new InvalidArgumentException($message);
  95. }
  96. throw new \InvalidArgumentException($message);
  97. }
  98. return strtr($standardRules[$position], $parameters);
  99. }
  100. /**
  101. * Returns the plural position to use for the given locale and number.
  102. *
  103. * The plural rules are derived from code of the Zend Framework (2010-09-25),
  104. * which is subject to the new BSD license (http://framework.zend.com/license/new-bsd).
  105. * Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  106. */
  107. private function getPluralizationRule(float $number, string $locale): int
  108. {
  109. $number = abs($number);
  110. return match ('pt_BR' !== $locale && 'en_US_POSIX' !== $locale && \strlen($locale) > 3 ? substr($locale, 0, strrpos($locale, '_')) : $locale) {
  111. 'af',
  112. 'bn',
  113. 'bg',
  114. 'ca',
  115. 'da',
  116. 'de',
  117. 'el',
  118. 'en',
  119. 'en_US_POSIX',
  120. 'eo',
  121. 'es',
  122. 'et',
  123. 'eu',
  124. 'fa',
  125. 'fi',
  126. 'fo',
  127. 'fur',
  128. 'fy',
  129. 'gl',
  130. 'gu',
  131. 'ha',
  132. 'he',
  133. 'hu',
  134. 'is',
  135. 'it',
  136. 'ku',
  137. 'lb',
  138. 'ml',
  139. 'mn',
  140. 'mr',
  141. 'nah',
  142. 'nb',
  143. 'ne',
  144. 'nl',
  145. 'nn',
  146. 'no',
  147. 'oc',
  148. 'om',
  149. 'or',
  150. 'pa',
  151. 'pap',
  152. 'ps',
  153. 'pt',
  154. 'so',
  155. 'sq',
  156. 'sv',
  157. 'sw',
  158. 'ta',
  159. 'te',
  160. 'tk',
  161. 'ur',
  162. 'zu' => (1 == $number) ? 0 : 1,
  163. 'am',
  164. 'bh',
  165. 'fil',
  166. 'fr',
  167. 'gun',
  168. 'hi',
  169. 'hy',
  170. 'ln',
  171. 'mg',
  172. 'nso',
  173. 'pt_BR',
  174. 'ti',
  175. 'wa' => ($number < 2) ? 0 : 1,
  176. 'be',
  177. 'bs',
  178. 'hr',
  179. 'ru',
  180. 'sh',
  181. 'sr',
  182. 'uk' => ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2),
  183. 'cs',
  184. 'sk' => (1 == $number) ? 0 : ((($number >= 2) && ($number <= 4)) ? 1 : 2),
  185. 'ga' => (1 == $number) ? 0 : ((2 == $number) ? 1 : 2),
  186. 'lt' => ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2),
  187. 'sl' => (1 == $number % 100) ? 0 : ((2 == $number % 100) ? 1 : (((3 == $number % 100) || (4 == $number % 100)) ? 2 : 3)),
  188. 'mk' => (1 == $number % 10) ? 0 : 1,
  189. 'mt' => (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 1) && ($number % 100 < 11))) ? 1 : ((($number % 100 > 10) && ($number % 100 < 20)) ? 2 : 3)),
  190. 'lv' => (0 == $number) ? 0 : (((1 == $number % 10) && (11 != $number % 100)) ? 1 : 2),
  191. 'pl' => (1 == $number) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 12) || ($number % 100 > 14))) ? 1 : 2),
  192. 'cy' => (1 == $number) ? 0 : ((2 == $number) ? 1 : (((8 == $number) || (11 == $number)) ? 2 : 3)),
  193. 'ro' => (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 0) && ($number % 100 < 20))) ? 1 : 2),
  194. 'ar' => (0 == $number) ? 0 : ((1 == $number) ? 1 : ((2 == $number) ? 2 : ((($number % 100 >= 3) && ($number % 100 <= 10)) ? 3 : ((($number % 100 >= 11) && ($number % 100 <= 99)) ? 4 : 5)))),
  195. default => 0,
  196. };
  197. }
  198. }