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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony package.
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5 *
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6 * (c) Fabien Potencier <fabien@symfony.com>
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Component\Translation\Loader;
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13
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14 use Symfony\Component\Translation\MessageCatalogue;
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15
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16 /**
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17 * ArrayLoader loads translations from a PHP array.
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18 *
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19 * @author Fabien Potencier <fabien@symfony.com>
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20 */
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21 class ArrayLoader implements LoaderInterface
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22 {
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23 /**
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24 * {@inheritdoc}
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25 */
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26 public function load($resource, $locale, $domain = 'messages')
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27 {
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28 $this->flatten($resource);
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29 $catalogue = new MessageCatalogue($locale);
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30 $catalogue->add($resource, $domain);
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31
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32 return $catalogue;
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33 }
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34
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35 /**
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36 * Flattens an nested array of translations.
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37 *
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38 * The scheme used is:
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39 * 'key' => ['key2' => ['key3' => 'value']]
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40 * Becomes:
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41 * 'key.key2.key3' => 'value'
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42 *
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43 * This function takes an array by reference and will modify it
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44 *
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45 * @param array &$messages The array that will be flattened
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46 * @param array $subnode Current subnode being parsed, used internally for recursive calls
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47 * @param string $path Current path being parsed, used internally for recursive calls
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48 */
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49 private function flatten(array &$messages, array $subnode = null, $path = null)
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50 {
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51 if (null === $subnode) {
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52 $subnode = &$messages;
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53 }
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54 foreach ($subnode as $key => $value) {
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55 if (\is_array($value)) {
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56 $nodePath = $path ? $path.'.'.$key : $key;
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57 $this->flatten($messages, $value, $nodePath);
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58 if (null === $path) {
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59 unset($messages[$key]);
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60 }
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61 } elseif (null !== $path) {
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62 $messages[$path.'.'.$key] = $value;
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63 }
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64 }
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65 }
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66 }
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