blob: 789693dd51c3860448c77921090ac9d9f5157382 [file] [log] [blame]
Matthias Andreas Benkard7b2a3a12021-08-16 10:57:25 +02001<?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}