1<?php 2 3/* 4 * This file is part of the Symfony package. 5 * 6 * (c) Fabien Potencier <fabien@symfony.com> 7 * 8 * For the full copyright and license information, please view the LICENSE 9 * file that was distributed with this source code. 10 */ 11 12namespace Symfony\Contracts\Translation; 13 14use Symfony\Component\Translation\Exception\InvalidArgumentException; 15 16/** 17 * A trait to help implement TranslatorInterface and LocaleAwareInterface. 18 * 19 * @author Fabien Potencier <fabien@symfony.com> 20 */ 21trait TranslatorTrait 22{ 23 private $locale; 24 25 /** 26 * {@inheritdoc} 27 */ 28 public function setLocale(string $locale) 29 { 30 $this->locale = $locale; 31 } 32 33 /** 34 * {@inheritdoc} 35 * 36 * @return string 37 */ 38 public function getLocale() 39 { 40 return $this->locale ?: (class_exists(\Locale::class) ? \Locale::getDefault() : 'en'); 41 } 42 43 /** 44 * {@inheritdoc} 45 */ 46 public function trans(?string $id, array $parameters = [], string $domain = null, string $locale = null): string 47 { 48 if (null === $id || '' === $id) { 49 return ''; 50 } 51 52 if (!isset($parameters['%count%']) || !is_numeric($parameters['%count%'])) { 53 return strtr($id, $parameters); 54 } 55 56 $number = (float) $parameters['%count%']; 57 $locale = $locale ?: $this->getLocale(); 58 59 $parts = []; 60 if (preg_match('/^\|++$/', $id)) { 61 $parts = explode('|', $id); 62 } elseif (preg_match_all('/(?:\|\||[^\|])++/', $id, $matches)) { 63 $parts = $matches[0]; 64 } 65 66 $intervalRegexp = <<<'EOF' 67/^(?P<interval> 68 ({\s* 69 (\-?\d+(\.\d+)?[\s*,\s*\-?\d+(\.\d+)?]*) 70 \s*}) 71 72 | 73 74 (?P<left_delimiter>[\[\]]) 75 \s* 76 (?P<left>-Inf|\-?\d+(\.\d+)?) 77 \s*,\s* 78 (?P<right>\+?Inf|\-?\d+(\.\d+)?) 79 \s* 80 (?P<right_delimiter>[\[\]]) 81)\s*(?P<message>.*?)$/xs 82EOF; 83 84 $standardRules = []; 85 foreach ($parts as $part) { 86 $part = trim(str_replace('||', '|', $part)); 87 88 // try to match an explicit rule, then fallback to the standard ones 89 if (preg_match($intervalRegexp, $part, $matches)) { 90 if ($matches[2]) { 91 foreach (explode(',', $matches[3]) as $n) { 92 if ($number == $n) { 93 return strtr($matches['message'], $parameters); 94 } 95 } 96 } else { 97 $leftNumber = '-Inf' === $matches['left'] ? -\INF : (float) $matches['left']; 98 $rightNumber = is_numeric($matches['right']) ? (float) $matches['right'] : \INF; 99 100 if (('[' === $matches['left_delimiter'] ? $number >= $leftNumber : $number > $leftNumber) 101 && (']' === $matches['right_delimiter'] ? $number <= $rightNumber : $number < $rightNumber) 102 ) { 103 return strtr($matches['message'], $parameters); 104 } 105 } 106 } elseif (preg_match('/^\w+\:\s*(.*?)$/', $part, $matches)) { 107 $standardRules[] = $matches[1]; 108 } else { 109 $standardRules[] = $part; 110 } 111 } 112 113 $position = $this->getPluralizationRule($number, $locale); 114 115 if (!isset($standardRules[$position])) { 116 // when there's exactly one rule given, and that rule is a standard 117 // rule, use this rule 118 if (1 === \count($parts) && isset($standardRules[0])) { 119 return strtr($standardRules[0], $parameters); 120 } 121 122 $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, $number); 123 124 if (class_exists(InvalidArgumentException::class)) { 125 throw new InvalidArgumentException($message); 126 } 127 128 throw new \InvalidArgumentException($message); 129 } 130 131 return strtr($standardRules[$position], $parameters); 132 } 133 134 /** 135 * Returns the plural position to use for the given locale and number. 136 * 137 * The plural rules are derived from code of the Zend Framework (2010-09-25), 138 * which is subject to the new BSD license (http://framework.zend.com/license/new-bsd). 139 * Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) 140 */ 141 private function getPluralizationRule(float $number, string $locale): int 142 { 143 $number = abs($number); 144 145 switch ('pt_BR' !== $locale && \strlen($locale) > 3 ? substr($locale, 0, strrpos($locale, '_')) : $locale) { 146 case 'af': 147 case 'bn': 148 case 'bg': 149 case 'ca': 150 case 'da': 151 case 'de': 152 case 'el': 153 case 'en': 154 case 'eo': 155 case 'es': 156 case 'et': 157 case 'eu': 158 case 'fa': 159 case 'fi': 160 case 'fo': 161 case 'fur': 162 case 'fy': 163 case 'gl': 164 case 'gu': 165 case 'ha': 166 case 'he': 167 case 'hu': 168 case 'is': 169 case 'it': 170 case 'ku': 171 case 'lb': 172 case 'ml': 173 case 'mn': 174 case 'mr': 175 case 'nah': 176 case 'nb': 177 case 'ne': 178 case 'nl': 179 case 'nn': 180 case 'no': 181 case 'oc': 182 case 'om': 183 case 'or': 184 case 'pa': 185 case 'pap': 186 case 'ps': 187 case 'pt': 188 case 'so': 189 case 'sq': 190 case 'sv': 191 case 'sw': 192 case 'ta': 193 case 'te': 194 case 'tk': 195 case 'ur': 196 case 'zu': 197 return (1 == $number) ? 0 : 1; 198 199 case 'am': 200 case 'bh': 201 case 'fil': 202 case 'fr': 203 case 'gun': 204 case 'hi': 205 case 'hy': 206 case 'ln': 207 case 'mg': 208 case 'nso': 209 case 'pt_BR': 210 case 'ti': 211 case 'wa': 212 return ($number < 2) ? 0 : 1; 213 214 case 'be': 215 case 'bs': 216 case 'hr': 217 case 'ru': 218 case 'sh': 219 case 'sr': 220 case 'uk': 221 return ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2); 222 223 case 'cs': 224 case 'sk': 225 return (1 == $number) ? 0 : ((($number >= 2) && ($number <= 4)) ? 1 : 2); 226 227 case 'ga': 228 return (1 == $number) ? 0 : ((2 == $number) ? 1 : 2); 229 230 case 'lt': 231 return ((1 == $number % 10) && (11 != $number % 100)) ? 0 : ((($number % 10 >= 2) && (($number % 100 < 10) || ($number % 100 >= 20))) ? 1 : 2); 232 233 case 'sl': 234 return (1 == $number % 100) ? 0 : ((2 == $number % 100) ? 1 : (((3 == $number % 100) || (4 == $number % 100)) ? 2 : 3)); 235 236 case 'mk': 237 return (1 == $number % 10) ? 0 : 1; 238 239 case 'mt': 240 return (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 1) && ($number % 100 < 11))) ? 1 : ((($number % 100 > 10) && ($number % 100 < 20)) ? 2 : 3)); 241 242 case 'lv': 243 return (0 == $number) ? 0 : (((1 == $number % 10) && (11 != $number % 100)) ? 1 : 2); 244 245 case 'pl': 246 return (1 == $number) ? 0 : ((($number % 10 >= 2) && ($number % 10 <= 4) && (($number % 100 < 12) || ($number % 100 > 14))) ? 1 : 2); 247 248 case 'cy': 249 return (1 == $number) ? 0 : ((2 == $number) ? 1 : (((8 == $number) || (11 == $number)) ? 2 : 3)); 250 251 case 'ro': 252 return (1 == $number) ? 0 : (((0 == $number) || (($number % 100 > 0) && ($number % 100 < 20))) ? 1 : 2); 253 254 case 'ar': 255 return (0 == $number) ? 0 : ((1 == $number) ? 1 : ((2 == $number) ? 2 : ((($number % 100 >= 3) && ($number % 100 <= 10)) ? 3 : ((($number % 100 >= 11) && ($number % 100 <= 99)) ? 4 : 5)))); 256 257 default: 258 return 0; 259 } 260 } 261} 262